174results about How to "Realize locking and fixing" patented technology

The invention relates to the technical field of industrial automation, in particular to an interconnected elastic mechanical gripper which comprises an upper support and a lower support. A moving push plate and a push component are arranged between the upper support and the lower support, the push component is used for pushing the moving push plate to move upwards, the top end of an outer sleeve is connected to the upper support, the bottom end of the outer sleeve penetrates the moving push plate and is connected with the lower support, a locking component is arranged in the moving push plate and matched with a hole in the outer wall of the outer sleeve, the top end of a supporting rod is connected to the upper support, the bottom end of the supporting rod penetrates the moving push plate and is connected with the lower support, an ejection elastic part is arranged on the outer wall of the supporting rod between the upper support and the moving push plate, a buffer component is arranged at the bottom of the lower support, the bottom end of the buffer component penetrates the lower support and extends into the outer sleeve, the outer wall of the moving push plate is rotatably connected with a push rod, the push rod is rotatably connected with a claw provided with a connecting portion, and the connecting portion is rotatably connected with the lower support. The surfaces of an aluminum honeycomb panel, a thin aluminum panel, a wood panel and the like can be rapidly, stably and reliably gripped and released.

The invention discloses a quick connecting structure for an electrically propelled wheelchair head and a wheelchair and the electrically propelled wheelchair head and belongs to the field of electric combined wheelchairs. The quick connecting structure comprises wheelchair head connecting portions arranged on two sides of wheelchair head and wheelchair connecting portions arranged on two sides of the front portion of the wheelchair, wherein each wheelchair connecting portion comprises a locking device and a clamping hook, each wheelchair connecting portion comprises a lower clamping hole matched with the corresponding clamping hook, the wheelchair head is obliquely pushed to the front side of the wheelchair to enable the clamping hooks to be located under the lower clamping holes, the wheelchair head is lifted to enable the clamping hooks to be clamped into the lower clamping holes, a front wheel of the wheelchair is lifted, and the locking devices enable the wheelchair head and the wheelchair to be locked integrally. The invention further discloses the electrically propelled wheelchair head. The quick connecting structure does not need screws for installation, the wheelchair head is clamped into the wheelchair and is upwards lifted to enable the front wheel of the wheelchair to be lifted so as to form a three-wheeled capable rotating freely, mounting and dismounting of the wheelchair head and the wheelchair are very convenient and quick, and the wheelchair is simple in structure and firm in connection.

The invention discloses a multifunctional rotating adjusting lifting appliance special for section beams. The lifting appliance comprises a lifting column and a supporting disc rotationally arranged at the bottom end of the lifting column, wherein a driving motor used for driving the supporting disc to rotate is further arranged on the lifting column; the outer side of the supporting disc is symmetrically and fixedly provided with two cantilever beams, and each cantilever beam is provided with a horizontal adjusting piece used for adjusting the horizontal position of supporting columns; and each supporting column is provided with a height-adjustable lifting supporting plate, and the lifting supporting plates are further provided with locking assemblies used for locking and fixing the lifting supporting plates. According to the embodiment, the cantilever beams of the lifting appliance can be rotated, the problem that the placed angle of the section beams is different is solved, and thelifting supporting plate arranged on a supporting part has the advantages of being flexible in adjustment and stable in structure.

The invention provides an automatic toilet cleaning device. The automatic toilet cleaning device is used for cleaning a toilet conveniently. The device mainly comprises a rack, a first support, a second support and a cleaning assembly, wherein the first support and the second support are hinged on left and right sides of the rack; and the cleaning assembly is arranged on the second support. The cleaning device can be used for automatically cleaning the inside of the toilet, and the cleaning operation is carried out under coordination of each motor and electronic telescopic rods, so that the inner wall of the toilet can be efficiently cleaned with high intelligent degree; close contact between a cleaning brush and the inner wall of the toilet can be guaranteed due to the telescopic rod on a cleaning rod and an extrusion spring between the telescopic rod and the cleaning rod, so that the cleaning effect can be guaranteed; the first support, the second support and the rack can be locked and fixed due to a locking mechanism; and the first support and the second support can be folded relative to the rack, so that the occupied space can be reduced, and integral storage and placement can be benefited.

The invention discloses a cable support. The cable support comprises a body and supporting arms, wherein the supporting arms are connected with the body in a rotating mode. A fixed supporting arm structure in the traditional technology is changed into the rotatable structure, and therefore the angle of the supporting arms can be freely adjusted, and installation of a cable can be completed in various use environments. It is not needed to specially design or manufacture a support suitable for specific environments; the cable support is suitable for mass production, various types of customization are avoided, and therefore the manufacturing and production cost can be greatly lowered; the cable support facilitates packaging and transportation, the supporting arms can be folded in the packaging and transportation processes, and therefore the occupied space is reduced, the transportation cost is lowered, and packaging is easier.

The invention provides a mounting structure for a hidden handle. The mounting structure comprises tolerance adjusters, bolt assemblies, an inner metal plate and the hidden handle, wherein each tolerance adjuster comprises a locking piece and a thread set sleeve piece, each thread set sleeve piece comprises a positioning nut and an elastic piece adjusting stud, each bolt assembly comprises a fastening bolt and a fixing gasket, handle base positioning structures are arranged on the hidden handle, a first open groove and bolt mounting via holes are formed in the inner metal plate, and the bottomend surface of the inner metal plate is provided with fixing nuts with the same hole centers as the bolt mounting via holes in a welding mode. The invention further provides a mounting method of the mounting structure for the hidden handle. According to the mounting structure for the hidden handle and the mounting method thereof, three-point positioning and lateral sliding-in mounting modes are adopted, so that the assembly efficiency is improved, and the stability and firmness are enhanced; and moreover, full-automatic three-directional tolerance adjustment and zero external stress mounting are achieved, so that the mounting process is smoother, and the cost is greatly reduced.

The invention discloses a box-type substation which is convenient for replacing transformers. The box-type substation comprises a box body, a base at the bottom of the box body, and a top seat on theupper part of the box body, wherein the inside the box body is divided into a high-voltage chamber, a transformer chamber and a low-voltage chamber in turn from left to right; a high-voltage switchgear is arranged in the high-voltage chamber; a low-voltage switchgear is arranged in the low-voltage chamber; two symmetrical guide rails are arranged in the transformer chamber; positioning blocks located at the inner side ends of the two guide rails are also provided; a detachable transformer which can move linearly along the guide rails is further provided; and a butt locking device for locking and fixing the transformer to finish electrical connection with the high-voltage switchgear and the low-voltage switchgear respectively is further provided. This design makes the transformer more convenient to replace, thereby reducing the maintenance time of the substation and ensuring the normal use of power.

The invention discloses a combined type sliding partition wallboard which comprises an upper top plate and a lower top plate. A wallboard body is slidably connected between the upper top plate and the lower top plate, a plurality of clamp blocks are fixedly connected with the upper end and the lower end of the wallboard body respectively, balls are mounted at one ends of the clamp blocks and away from the wallboard body, slots corresponding to the clamp blocks are arranged in the inner wall of each of the upper top plate and the lower top plate, the inner wall of each of the upper top plate and the lower top plate is provided with a connecting shaft, an annular limit block sleeves the outer wall of the middle portion of each connecting shaft, two L-shaped locking rods are respectively connected to outer walls of two ends of each connecting shaft in a symmetric threading manner, one ends of the L-shaped locking rods and away from each connecting shaft extend to the inner wall of the wallboard body, and locking grooves corresponding to the L-shaped locking rods are arranged in the inner wall of the wallboard body. The combined type sliding partition wallboard is simple in structure and convenient and rapid in operation, sliding splicing of the wallboard is realized, certain thermal insulation, sound insulation and flame resistance properties are achieved, and the combined type sliding partition wallboard is suitable for extensive promotion.

The invention relates to the field of medical facilities and in particular discloses a novel clinical emergency treatment device for a clinical laboratory. The novel clinical emergency treatment device comprises a base, castors, a box body, a supporting platform, a supporting vertical plate, a supporting seat, an upper supporting spring, a supporting slide block, a lower supporting spring and a U-shaped groove, wherein external threads on outer rings at two ends of a first lead screw have opposite rotating directions; two rectangular slide blocks which are horizontally arranged in the supporting seat in a sliding manner are respectively arranged on the outer rings at two ends of the first lead screw in a threaded connection manner; the bottoms of two sides of the supporting platform and the two rectangular slide blocks are connected by supporting connecting rods; and the box body arranged on the supporting platform is detachably connected with elastic supporting pieces on inner walls of the supporting vertical plate. According to the novel clinical emergency treatment device disclosed by the invention, the box body can be stably arranged on the supporting platform, and blood samples in the box body can be fully protected; and moreover, due to the arrangement of the lower supporting spring, an excellent effect of buffering the falling box body can be achieved, and the device issafe and reliable.

The invention discloses a support-reliable environment-protection box structure for a construction site. The support-reliable environment-protection box structure comprises a box body, a partition mechanism for transversely partitioning or opening the box body, and a temporary-storage mechanism for taking out household garbage, wherein the upper end of the box body is open, the partition mechanism is arranged in the box body, the partition mechanism and the upper portion of the box body form a tank for placing the household garbage, the temporary-storage mechanism is fixed in the box body and located below the partition mechanism, adjustable support racks are respectively arranged on two sides of the box body, vertical guide grooves are formed in the outer walls on two sides of the box body, each adjustable support rack is arranged in the corresponding guide groove through a slider group, and a fastening device for fixing each slider group to the required position is arranged on the slider group. By the structure, the support-reliable environment-protection box structure has the advantages that combustibles such as cigarette ends and food plastic bags can be treated safely and reliably, a construction environment can be improved favorably, potential safety hazard is avoided, and the mounting stability of the environment-protection box structure is increased.

The invention relates to the field of optical connectors and especially to a fiber connector easy to repair. The fiber connector easy to repair comprises a front sleeve and a back sleeve. Fiber holes passing through the front and back of the back sleeve are disposed on the back sleeve. The wall of the back sleeve is also equipped with fiber inlets communicated with the fiber holes and used for enabling fibers to entering the fiber holes along radial direction. In a fiber connector assembling process, after components, such as a fiber spring and an optical pin or the like, are all installed, the fibers enter the corresponding fiber holes via the fiber inlets along the radial direction; then the back sleeve is inserted into the front sleeve. Thus, the corresponding sidewall of the front sleeve may seal the fiber inlets such that the performance of the fiber connector is same as that of a conventional fiber connector. Similarly, when being required to be replaced, the back sleeve is just required to be pulled out and then the fibers pass through the corresponding fiber inlets and are separated from the back sleeve. As known from the above description, the back sleeve of the fiber connector easy to repair can be replaced while the fibers are not cut off.

The invention discloses an assembled type foundation unit. The assembled type foundation unit comprises two X crossbeams, two Y crossbeams, two connecting rods, a connecting disc and a ground pile; the two X crossbeams are correspondingly connected with the connecting disc in an installation manner; the two Y crossbeams are connected with the connecting disc in an installation manner by virtue ofthe two connecting parts; the ground pile is installed at the lower surface of the connecting disc by virtue of a mounting disc; the two ends of a first vertical plate are corresponding connected withthe two X crossbeams in an installation manner; the two ends of a second vertical plate are correspondingly connected with the two X crossbeams in an installation manner; base plates of the connecting parts are provided with bolts corresponding to mounting through holes of the first vertical plate and the second vertical plate; a bolt sequentially penetrates through the bolt hole on the base plate of one connecting part and a connecting through hole of a first side plate of each X crossbeam; another bolt penetrates through the bolt hole on the base plate of the other connecting part and the connecting through hole of a second side plate of each X crossbeam and is connected with a nut positioned on the second vertical plate in a screwing manner. The assembled type foundation unit disclosedby the invention is ingenious in structure and easy to mount and dismount, realizes connection of all components of an assembled type building foundation unit and realizes stable connection of all components.

The invention relates to a locking support mechanism and an exposure device of a material exposure test box. The locking support mechanism comprises locking brackets and a bearing mechanism, and a plurality of locking brackets are correspondingly and vertically fixed to the peripheral side of the beating mechanism; sliding grooves are formed in one side edges of the locking brackets, limiting notches are formed in the groove walls of the sliding grooves, guide locking parts are arranged on the locking brackets, and penetrate through two groove walls of the sliding grooves; baffles which are arranged at intervals with the side walls of a test box are correspondingly arranged on the side walls of the test box, mounting ports are formed among one ends of the baffles and the side walls of thetest box, separating bars are arranged among the baffles and the side walls of the test box, the baffles and the side walls of the test box are separated by the separating bars to form a plurality ofmounting grooves which are formed up and down, and guiding ports are formed in the baffles; and wherein the groove walls formed with the limiting notches of the sliding grooves are inserted into the mounting grooves, the separating bars are inserted into the limiting notches, the guide locking parts are inserted into the guiding ports, and lock the baffles in the sliding grooves. According to thelocking support mechanism and the exposure device of the material exposure test box, the structure is stable and firm, and the environmental requirements of a space station can be met.

The invention is suitable for the field of dish washing machines and discloses a dish washing machine guide rail retaining block, a dish washing machine guide limiting structure and a dish washing machine. The dish washing machine guide rail retaining block comprises a rigid retaining block body, a first connecting structure and an elastic buffering structure, the first connecting structure is arranged on the rigid retaining block body and used for being in fastened connection with a guide rail, the elastic buffering structure is arranged on the rigid retaining block body and used for being in abutted limitation with a guide limiting wheel, the rigid retaining block body comprises a clamping insertion portion slidably clamped and inserted into a sliding groove of the guide rail, and a clamping portion clamped outside the sliding groove, and the elastic buffering structure is arranged on an end face, away from the clamping portion, of the clamping insertion portion. The elastic buffering structure is arranged on the rigid retaining block body additionally, so that impact force between the dish washing machine guide rail retaining block and the guide limiting wheel is buffered effectively, impact sound generated by collision of the dish washing machine guide rail retaining block and the guide limiting wheel is reduced, comfortability when a user uses the dish washing machine guide rail retaining block is improved, and using safety and reliability and easiness in use of the dish washing machine guide rail retaining block are improved.

The invention relates to a fixture structure for slotting batches of plungers. The fixture structure comprises a base, wherein the base is fixedly connected with a fixture body; the fixture body is provided with a compression unit, a positioning unit and a assembly unit. The fixture structure is simple in structure and convenient to install; the assembly unit is provided with a plurality of open slots, so that batches of plungers can be assembled; positioning pillars on the positioning unit and a flat position positioning pillar are utilized for realizing the accuracy in positioning and positioning references of the plungers; a movable press plate and filled plastics in a press plate are arranged, so the stress uniformity of the plungers during machining is effectively realized; the press plate of the compression unit is flexible to rotate, so the plungers can be effectively locked and fixed, and the machining is more reliable and more convenient.

The invention relates to a method for measuring the axial clearance of a double-row conical bearing, which comprises the steps that an inner ring of the bearing is fixed by means of a bearing fixing device in such as manner that the two ends of the bearing are clamped in the axial direction, an outer ring of the bearing is suspended so as to enable the outer ring of the double-row roller bearing to perform axial displacement relative to the inner ring, the bearing is vertically placed, the head of a dial indicator hits a horizontal plane at the axial end of the outer ring of the bearing, the dial indicator and the bearing are relatively fixed in position, the outer ring of the bearing is toggled to enable the outer ring to perform axial drop displacement relative to the inner ring of the bearing, and the reading of the dial indicator is obtained; the bearing fixing device is flipped to enable the bearing and the dial indicator to flip in the axial direction by 180 degrees synchronously, the outer ring of the bearing is toggled to enable the outer ring to perform axial drop displacement relative to the inner ring of the bearing, and the reading of the dial indicator is obtained; and the difference of the two readings of the dial indicator is the average axial clearance of the bearing. The method realizes detection for the axial clearance by using a flipping operation, and has the advantages of simple operation and high work efficiency.

The invention aims at providing an automobile self-sucking door lock which enables an automobile door to be easily closed, is low in noise and can prolong the service life of the door lock and an automobile door hinge. The automobile self-sucking door lock comprises a locking mechanism, a driving mechanism and a first position sensor, the locking mechanism comprises a fixing plate, an open slot isformed in the fixing plate, a spring bolt is rotationally fixed to the fixing plate, one end of the spring bolt is a linkage end, the other end of the spring bolt is a locking end, the linkage end islinked with a pull wire, and the end, far away from the locking mechanism, of the pull wire and a sliding block are fixed; when the spring bolt rotates to one side to reach the limiting position, thelocking end leaves the open slot, and the linkage end drives the sliding block through the pull wire to forwards move; when the spring bolt rotates to other side, the locking end rotates to the sideof the open slot, and the linkage end pushes the sliding block to move backwards through the pull wire; and when the first sensor detects that the sliding block is moved backwards, the driving mechanism controls the sliding block to continuously move backwards, and therefore the sliding block pulls the spring bolt through the pull wire to enable the spring bolt to be rotated again.

The invention discloses a refrigerator door lock assembly, which comprises a lock cylinder assembly and a lock box with an opening; the lock cylinder assembly comprises a lock cylinder and a swinging part, and the swinging part comprises a fixing part fixedly connected with the lock cylinder and a a free end extending away from the lock core, the opening is set facing the free end, and the fixing part rotates with the lock core so that the free end swings into the lock through the opening Lock and fix the inside of the box with the lock box or swing out the inside of the lock box to unlock with the lock box; one of the lock cylinder assembly and the lock box is used for setting on the refrigerator door, and the other is used for Set in the refrigerator box. The invention also discloses a refrigerator using the refrigerator door lock assembly. The technical solution of the invention aims at realizing the locking between the refrigerator door body and the refrigerator box body.

The invention discloses a deep-sea winding and unwinding cable cart which comprises: a driving device comprising an output shaft; a connecting component which is connected with the output shaft and a main shaft, wherein an insertion positioning part is arranged on the connecting component; a rope storage base body, wherein an accommodating space is formed in the rope storage base body; a rope drum which is arranged in the accommodating space and is connected with the main shaft; a bidirectional lead screw which is rotationally connected to the rope storage base body and connected with the main shaft through a transmission device; a rope arranging component, wherein a shifting fork piece is arranged in the rope arranging component, the shifting fork piece is embedded in a spiral groove of the two-way lead screw, and a rope penetrating part is arranged on the rope arranging component; a mooring rope, wherein one end of the mooring rope is wound on the rope drum, and the other end penetrates through the rope penetrating component to be connected with a floating platform; a power telescopic component which can extend to an insertion positioning part or extend out of the insertion positioning part; a water depth detection element; and a controller which is in communication connection with a water depth detection element, a driving device and the power telescopic component. According to the deep-sea winding and unwinding cable cart, a coupler can be locked, and protection of the whole equipment is achieved.

The invention relates to the field of kits, and particularly discloses a DNA extraction kit. The DNA extraction kit comprises a kit body, a rotating structure, a fixing structure, a clamping structure, a freezing structure, a drawing structure and a moving structure. The rotating structure is installed inside the kit body, so that the sealing protection effect on the kit body can be achieved, and it can be ensured that a test tube placed inside the kit body is always in a vertical state, thus, the circumstance that the test tube leaks liquid when the kit body is transported can be avoided, and the transportation safety of reagents is greatly improved; in cooperation with the freezing structure installed inside the kit body, the refrigeration effect on the reagents placed inside the kit body can be achieved, water drops condensed outside can be collected and treated in a centralized mode, rapid assembling and disassembling can be realized, and the operation is facilitated; and the fixing structure is arranged inside the rotating structure for placing the test tube, so that the outer side wall of the inserted test tube can be locked and fixed, the circumstance that the test tube shakes when the reagents are transported is avoided, and liquid leakage is prevented.

The invention relates to an aluminum-based copper-clad plate manufacturing and processing system. The system comprises a bottom rack, a vertical rack, a placing plate, a placing mechanism, a cutting mechanism and a pressing and smoothing mechanism. The system can solve the following problems in the manufacturing process of the aluminum-based copper-clad plate: a, in the traditional manufacturing process of the aluminum-based copper-clad plate, the aluminum-based copper-clad plate is formed by extruding a resin plate and a copper foil in the manufacturing process, so that the problem that the side edge of the aluminum-based copper-clad plate is uneven after extrusion forming exists, and in a traditional extrusion forming device, excess materials of an aluminum-based copper-clad plate cannotbe cut off, and subsequent use of the aluminum-based copper-clad plate is affected; b, in the traditional aluminum-based copper-clad plate production and manufacturing process, due to the fact that the aluminum-based copper-clad plate is formed in an extrusion mode, bending of the aluminum-based copper-clad plate is caused by elastic deformation in the extrusion forming process, and the bending problem of the aluminum-based copper-clad plate affects the subsequent processing of the printed circuit board.

The invention discloses an airtight member of a neodymium iron boron storage container and relates to the technical field of cable processing. The airtight member comprises a member body, wherein the member body is divided into an inner area and an outer area; the inner area is provided with a containing space; the outer area is in a hollow structure; and the member body comprises a securing ring, pressing pieces, locking blocks, rotating shafts, pressure blocks, and air pressure sealing elements. The air pressure sealing elements are provided with air supply parts, extrusion parts and ventilation parts. According to the airtight member, the securing ring is rotated to allow the locking blocks to lock and fix a discharge port of an air-stream mill; quick mounting and dismounting of a material bucket used in a neodymium iron boron receiving process and the discharge port of the air-stream mill are achieved; at the same time, after the securing ring is rotated, air is supplied to the extrusion parts; and the extrusion parts is enlarged under the action of air and self elasticity to extrude the discharge port of the air-stream mill to achieve sealing. The airtight member can still seal neodymium iron boron in the material bucket in several quick mounting and dismounting processes.

The invention relates to the technical field of circuit breakers, and discloses a miniature circuit breaker. The circuit breaker comprises a miniature circuit breaker main body, the outer side of theminiature circuit breaker main body is covered with a shell, and one end of the shell is provided with an insertion port. A box body is arranged at the end, away from the insertion opening, in the shell, and cooling liquid is contained in the box body. A heat conduction assembly is arranged on the side, facing the insertion opening, of the box. And a shell cover is arranged on the shell. A connecting block is arranged on the side, close to the shell, of the shell cover, a connecting groove is formed in the shell, and the connecting groove and the connecting block are locked and fixed through alocking mechanism. The miniature circuit breaker is accommodated in the space formed by the shell and the shell cover, a stable environment is provided for normal operation of the miniature circuit breaker, the shell and the shell cover are connected and fixed through the connecting groove and the connecting block, and the locking mechanism is additionally arranged on the basis, so the rapid disassembly and assembly between the shell and the shell cover are realized; the heat conduction assembly and the box body are additionally arranged in the shell, so that the heat dissipation effect is improved, and a stable temperature environment is provided for normal operation.

The invention discloses a visual detection device capable of reducing the misjudgment rate of visual detection and a detection method thereof. The visual detection device comprises a vertical plate, a height adjusting structure, a transverse adjusting structure, a plane angle adjusting structure, an inclination adjusting structure, a guiding and stabilizing structure and a product positioning structure. A mounting plate is welded to the bottom end of the left side wall of the vertical plate, a reinforcing rib is arranged at the vertical joint of the mounting plate and the vertical plate, and a mounting groove is formed at the left side of the bottom surface of the mounting plate; penetrating holes are symmetrically formed at the left side of the wall body of the mounting plate, and fixing screw rods are arranged in the penetrating holes in the wall body of the mounting plate. According to the visual detection device capable of reducing the visual detection misjudgment rate and the detection method thereof, the detection judgment can be prevented from being influenced by too high conveying speed, the external characteristic specifications of a product are comprehensively acquired from different angles, supporting and guiding stability in the moving process is provided, shaking during acquisition is avoided, pictures of different external characteristic specifications of the product can be acquired, and later accurate comparison is facilitated, so that misjudgment is comprehensively reduced.

The invention discloses a foundation unit for a steel structure house. The foundation unit comprises two X cross beams, two Y cross beams, two connecting pieces, a connecting plate and a ground pile,the two X cross beams are installed on and connected with a connecting plate, and the two Y cross beams are connected with the connecting plate and the X cross beams through the two connecting piecesrespectively; the ground pile is arranged on the lower surface of the connecting plate through a mounting plate, the two ends of a second vertical plate are installed on and connected with the two X cross beams respectively, and a plurality of outer through holes are formed in first connecting sheets and second connecting sheets respectively; a first side plate and a second side plate of each Y cross beam are provided with lock holes corresponding to the outer through holes of the first and second connecting sheets; a bolt penetrates through the lock hole of the first side plate of each Y cross beam and is in screwed connection with a locking nut on the corresponding first connecting sheet, and a bolt penetrates through the lock hole of each second side plate and is in screwed connection with a locking nut on the corresponding second connecting sheet. By means of the foundation unit, face-to-face locking and fixing between the two side plates of each Y cross beam and the two connectingsheets of the corresponding connecting piece can be achieved, the connection stability of the Y cross beams is good, and disassembly and assembly are easy.

The invention discloses a plastic injection mold with a locking mechanism. The plastic injection mold comprises a base, a fixed mold plate and a movable mold plate. The fixed mold plate is fixedly arranged on the base, hydraulic lifting mechanisms are fixedly arranged at the two ends of the top end of the movable mold plate, and a feeding port is formed in the middle position of the top end of the movable mold plate. Lower locking mechanisms are fixedly arranged on the two sides of the upper end of the fixed mold plate, upper locking mechanisms are arranged on the two sides of the bottom end of the movable mold plate, and an automatic demolding mechanism is arranged on the movable mold plate. According to the plastic injection mold with the locking mechanism, locking and unlocking of the movable mold plate and the fixed mold plate are automatically achieved through temperature changes of plastic melt during injection molding, the structure is simple, operation is convenient, the cost is reduced, after injection molding, the movable mold plate drives a rack to move upwards to enable a winding wheel to rotate, a pull rope can be loosened when the winding wheel rotates, a demolding rod is ejected out under the action of a compression spring after losing the pulling force action of the pull rope, so that the demolding rod ejects out an injection-molded product, and automatic demolding of the injection mold is achieved.

The invention discloses a foundation module for a fabricated house. The foundation module comprises two X beams (1), two Y beams, two connecting pieces, a connecting disc and a ground pile, wherein the two X beams are correspondingly installed on and connected with the connecting disc; the two Y beams are correspondingly installed on and connected with the connecting disc and the X beams through the two connecting pieces, and the ground pile is installed on the lower surface of the connecting disc through a mounting disc; the two X beams are correspondingly installed on and connected to the two ends of a second vertical plate, and outward flanging strips are arranged on the lower parts of first side plates and second side plates of the X beams and the Y beams; and an overlap joint part arranged in an upward and staggered mode is arranged on at least one end of the two ends of the flanging strips of each Y beam, the mounting disc is uniformly provided with a plurality of mounting holesin the circumferential direction, and the connecting disc is provided with a plurality of strip-shaped through holes outside a first vertical plate and the second vertical plate. The foundation moduleprovides surface supporting for the Y beams, ensures the bearing capacity of the Y beams, further improves the stability of the whole structure, and simultaneously can keep the upper surfaces of topplates of the X beams and the Y beams on the same plane to ensure the stability and beauty of the whole structure.

The invention discloses a crankshaft test-based engine cold test sensor docking device, which comprises a connecting plate, an avoiding hole and a power connection head, two groups of fastening clamping plates for preventing a sensor plug from falling off are slidably connected in a side connecting frame, and external connecting shell sleeves are fixedly arranged at the upper end and the lower end of the side connecting frame; and a sliding type linkage pushing mechanism used for driving the fastening clamping plate to move is arranged in the external connecting shell sleeve, and an expanding type butt joint mechanism used for fixing the connecting plate and an engine is arranged on the connecting plate. According to the invention, a sleeve rod is pressed to be separated from a positioning groove in an external shell sleeve, then a button is pushed to enable a driving sliding block to move along the horizontal direction, and at the moment, two groups of fastening clamping plates move towards the inner side direction of a side connection frame to realize locking and fixing of a sensor plug; and the sensor and the connecting plate are kept in a stable power connection state when the engine is tested, so that the purpose of accurate and reliable test data is achieved.

The invention discloses a undercarriage retracting and releasing device. The undercarriage folding and unfolding device comprises a tire rod, a connecting rod mechanism hinged to the tire rod and an electric cylinder connected with the connecting rod mechanism; the connecting rod mechanism comprises a short connecting rod and a long connecting rod which are hinged to a hinge shaft, the other end of the short connecting rod is hinged to the tire rod, and the other end of the long connecting rod is hinged to a fuselage; the electric cylinder is also hinged to the hinge shaft; when the tire rod is put down, the short connecting rod and the long connecting rod are located on the same straight line. The electric cylinder is provided with an automatic locking structure so as to lock and fix thetire rod in the two states that the tire rod is put down and retracted. By the adoption of the technical scheme, the undercarriage retracting and releasing device small in occupied space is obtained.