85results about How to "Disassembly and assembly save effort" patented technology

The invention relates to a water treatment industry and specially, relates to deep filtration and purification of drinking water. The invention discloses a water processor with a siamesed filtration tank and an underslung machine base. The water processor with the siamesed filtration tank and the underslung machine base comprises built-in pluggable filter elements, the siamesed filtration tank, a top cover, the underslung machine base with pipe open channels, upper and lower sealing members and fasteners. The siamesed filtration tank is in contact fit relationships respectively with the top cover and the underslung machine base, wherein the top cover is arranged on the siamesed filtration tank and the underslung machine base is arranged under the siamesed filtration tank. The upper sealing member is arranged between the siamesed filtration tank and the top cover. The lower sealing member is arranged between the siamesed filtration tank and the underslung machine base. Through the fasteners, the upper and lower sealing members, the siamesed filtration tank, the top cover and the underslung machine base are connected into an integral body comprising multiple sealed filtration tanks. A water feeding mouth arranged at the bottom of the integrated body comprising the multiple sealed filtration tanks is sealingly attached to the pipe open channels of the underslung machine base. All the sealed filtration tanks can realize sealing plugging spacing of the built-in pluggable filter elements in the sealed filtration tanks. The water feeding mouth of the integrated body comprising the multiple sealed filtration tanks is communicated with two sides of each one of filter material layers of the built-in pluggable filter elements so that a filtration channel for connecting the built-in pluggable filter elements in series is formed. The water processor with the siamesed filtration tank and the underslung machine base has the advantages that a machine structure is simple; assembling quality is stable; efficiency is high; disassembling and assembling are easy and need low labor consumption; the built-in pluggable filter elements are convenient for processing; and environmental pollution is avoided.

The invention relates to water treatment industry, particularly relates to filtering of drinking water and discloses a water purifier with a flipping cover device. The water purifier comprises a water inlet interface, a water outlet interface and a machine base which is used for placing a plurality of filter liners, wherein a shell body of each filter liner or closed filter liner or an inner container arranged in each filter cartridge is connected and fit with the machine base, and external water receiving openings are formed in the upper end face of each shell body. The water purifier further comprises an integral bin cover and a fastening device, wherein the integral bin cover is provided with a built-in pipeline and butting water openings; one end of the integral bin cover is hinged to the machine base by a shaft, the other end of the integral bin cover swings around the shaft in a fit manner and is connected and fixed onto the machine base by the fastening device, and two external water receiving openings of each filter liner correspond to the butting water openings of the integral bin cover; when the integral bin cover and the machine base are in a closed state, the external water receiving openings of each filter liner are in sealed butt joint with the butting water openings corresponding to the external water receiving openings respectively, and the built-in pipeline communicates the water inlet interface and the water outlet interface so as to form a filtering passage which connects all the filter liners in series; and when the integral bin cover and the machine base are in an opened state, the sealed butt joint between the external water receiving openings of each filter liner and the butting water openings is separated at the same time.

The invention is relative to the water treatment industry, and concretely relates to deep filtration and clean-up of the drinking water. This invention discloses a water conditioner equipped with an interconnected filtration chamber and a splicing sealed structure. The water conditioner comprises a built-in splicing filter liner, an interconnected filtration chamber and upper covers, a water-transferring pipeline, a filtration airproof component and a clamp device. The upper cover and each filtration chamber of the interconnected filtration chamber are performed sliced cooperation, several sealed filtration chambers are composed of the filtration airproof component and the clamp device by connecting; each sealed filtration chambers were connected in series by water pipelines. The sealed filtration chambers set the sealing limits to the built-in splicing filter liner respectively, the interfaces of water pipeline are communicated to two sides of a material filtering layer of the built-in splicing filter liner. The invention has the advantages of simple device structure, stable installation quality, high efficiency, easy assemble and disassemble with little effort, the built-in splicing filter liner is convenient to replace, the usage cost of the filtration core can be reduced, and the water conditioner of the invention is convenient to the remote users.

The invention relates to a location ruler used in an operation. The location ruler comprises two X-ray-pervious opposite faces, the two opposite faces are fixedly connected through an X-ray-pervious connection face, the distance between the two opposite faces ranges from 5 cm to 15 cm, the two opposite faces are respectively provided with a set of marks, each set of marks include at least four mark points which are on different straight lines and are arranged based on marking of a linear camera model in an X-ray imaging device and the three-dimensional spatial point rebuilding principle, the marking points are X-ray-impervious components, any opposite face or the connection face is fixedly connected with a ruler handle, and the ruler handle is provided with a connector used for being connected with a mechanical arm of an orthopedics robot. According to the location ruler, by means of one set of marking points of each opposite face, perspective location can be achieved at any angle, system errors caused during calculation of an operation path can be eliminated and precision of the location ruler is improved.

The invention is relative to a water treatment industry, and concretely relates to filtration of drinking water. The invention discloses a water processor having a water collecting-type housing apparatus. The water processor having the water collecting-type housing apparatus comprises a water inlet interface, a water outlet interface, filtration containers, and a machine base; several filtration containers vertically inserting into a filtration container hole of the machine base and connecting in a filtering channel in series or sealing filtration containers or inner containers placed in each filter cylinder, and the water processor also comprises a U-shaped water-collecting chamber used for receiving disengagement weepage from abutting joint water openings of a filtering channel, and a water openings abutting joint capturing apparatus; the U-shaped water-collecting chamber corresponding to the abutting joint water openings of the filtering channel is placed at outside of several filtration containers and is connected and cooperated with the machine body, and a water collecting-type support housing used for supporting the filtration containers and collecting the disengagement weepage from the abutting joint water openings of the filtering channel is formed; the U-shaped water-collecting chamber with an upper opening is provided a bottom water outlet, or a movable chamber which is connected and cooperated with the machine base in a movable mode and is capable of moving out of a support frame; sealing abutting jointing of the abutting joint water openings and the filtration containers are disconnected by moving the upper cover or the filtration containers, and an inner chamber of the U-shaped water-collecting chamber is communicated with the abutting joint water openings.

The invention relates to the water treatment industry, in particular to drinking water filtration, and discloses a water purifier with an upper-arrangement control module and a U-shaped filter bladderbin and self-supporting filter bladders of the water purifier. The water purifier comprises filter bladders and a filter channel, and further comprises the upper-arrangement control module with a water passing pipeline having upper docking water openings and a through hole structure, upper fixing devices, the self-supporting filter bladders with upper fastening structures and lower docking wateropenings which are arranged on the same side, and moveable connection devices; the upper-arrangement control module cooperates with the U-shaped filter bladder bin in which the self-supporting filterbladders are put; each moveable connection device located between one upper fixing device of the upper-arrangement control module and one corresponding self-supporting filter bladder is in connectionfit with one corresponding upper fastening structure of one self-supporting filter bladder through one corresponding through hole structure, the upper-arrangement control module and the U-shaped filter bladder bin are integrally connected, and the plurality of upper docking water openings of the upper-arrangement control module are in simultaneous seal butt joint with the corresponding lower docking water openings of the self-supporting filter bladders; and the upper fastening structures of a filter bladder shell with the lower docking water openings are either threaded fixing structures or aset of arc-shaped radial fixing tooth fastening structures used for a rotary clamping structure.

The invention relates to the water treatment industry, concretely relates to the field of filtration of drinking water, and discloses a transverse socketing method of water passing pipeline interfaces between the upper base and the lower base of a water purifier. The upper base is fixedly provided with filters and is provided with a plurality of water passing pipelines connected with the filters; the lower base is fixedly provided with water passing control parts; the upper base and the lower base are connected in a fit manner to form one body, the water passing pipelines and the water passing control parts are connected to form filtering channels of all the filters, and the water passing pipelines of the upper base are provided with at least one upper socketing water port with a transverse axis; the water passing pipelines of the water passing control parts of the lower base are provided with lower socketing water port with the corresponding transverse axis, the lower socketing water port cooperates with the upper socketing water port of the upper base in a coaxial socketing manner, and the socketing position of the two socketing water ports is fixed by a locking device; and the locking device is removed, the lower socketing water port is transversely moved, the sealed socketing cooperation between the socketing water ports of the upper base and the lower base is correspondingly removed, and the pipeline connection of the relevant water passing control parts and the filtering channels of the upper base is correspondingly removed.

The invention provides a portable type manual rapid dismounting and assembling tool for a card lock type anti-explosion tyre. The portable type manual rapid dismounting and assembling tool comprises a push-pull disc with a disc face located on the horizontal direction, wherein a central hole is formed in the center of the push-pull disc along the vertical direction; 3-16 strip-shaped through grooves are symmetrically formed in the disc face of the push-pull disc along the radial direction of the central hole; a bearing disc is arranged below the push-pull disc; rotary pin shafts are arranged at the edge of the bearing disc along the vertical direction; the quantity of the rotary pin shafts is the same as that of the through holes; each rotary shaft is correspondingly located below the inner side of the inner end of each through groove; each rotary shaft is connected with the inner end of a transverse beam in a mounting manner; a strip-shaped mounting groove is formed in each transverse beam along the axis direction. The invention aims to provide the portable type manual rapid dismounting and assembling tool for the card lock type anti-explosion tyre for the transportation safety of crawler-type vehicles; the portable type manual rapid dismounting and assembling tool is small in volume, is convenient to manually detach and assemble and is convenient to use and carry; the tyre can be detached conveniently, rapidly and safely and the labor is saved; tyre parts are not damaged and the working efficiency is high.

The invention discloses a floating connector, and belongs to the technical field of honing machining. The floating connector comprises a connection body assembly and an auxiliary connection body, wherein the connection body assembly comprises a main connection body and a lower sealing cover; the head part of the auxiliary connection body is accommodated in a floating cavity in the lower end of themain connection body; the lower sealing cover sleeves outside the auxiliary connection body, and is detachably connected with the lower end of the main connection body; a cross block is further arranged in the floating cavity, and slidably connected between the bottom of the floating cavity and the top of the auxiliary connection body; and the auxiliary connection body and the cross block form clearance fit with the inner wall of the floating cavity, and the lower sealing cover forms clearance fit with the outer wall of the auxiliary connection body. According to the floating connector, a structure that the cross block forms horizontal slide fit with the main connection body and the auxiliary connection body is used for replacing a traditional universal joint, so that a tool is enabled tomuch stably float in the horizontal direction, higher honing machining accuracy is achieved, and an orifice is not liable to be machined to be in the shape of a horn; and in addition, due to a centering design during the rotation of the tool, the tool is not liable to swing, accurate entrance into the orifice, of the tool, is achieved, and damage to the orifice is avoided.

The invention relates to the water treatment industry, in particular to drinking water filtration.The invention discloses a U-shaped housing device provided with a side wall pipeline structure of a water purifier.The device comprises a U-shaped housing for accommodating and placing a plurality of filtration liners, an upper cover and a swing lock hook device, wherein eachfiltration liner isconnected withand fixed in the U-shaped housing via a filtration liner fastening device; water gaps of the filtration liners are in butt joint with butting water gaps of water through pipelines on the bottom surface of the U-shaped housing in a sealing manner to form a filtration channel; the upper cover is ofa siding structure or a flip structure; the swing lock hook device connects the U-shaped housing with the upper cover to form an enclosed filtration liner cabin; the upper cover is moved after the swing lock hook device is opened; the device further comprises the pipeline structure arranged on the outer side of a cavity wall of the U-shaped housing; and the pipeline structure is at least one of an overflow pipeline structure or a guide pipeline structure and is integrally formed with the U-shaped housing.

The invention relates to water treatment industry, in particular to drinking water filtration. The invention discloses a filter cartridge device with embedded structures for an assembled water purifier. The filter cartridge device comprises filter cartridges and embedded locking devices; an inner cavity for placing a built-in filter liner, a water inlet and a water outlet are formed in each filter cartridge; an embedded structure, which comprises at least one of a dovetail-groove-shaped concave structure or a dovetail-groove-shaped convex structure, is formed on the outer circumferential surface of the wall of each filter cartridge; the filter cartridges are connected with one another in a manner that the dovetail-groove-shaped convex structure on one filter cartridge is embedded in the dovetail-groove-shaped concave structure on the adjacent filter cartridge and form the whole one-piece filter cartridge device through the embedded locking devices; the inner cavities of the filter cartridges are connected in series to form a filter channel through a water passage pipeline for connecting the water inlets and the water outlets; the embedding insertion directions of the embedded structures of the dovetail-groove-shaped concave and convex structures are different from the connection directions of the filter cartridges; the embedded locking devices are matched with the dovetail-groove-shaped concave and convex structures to limit the movement of the dovetail-groove-shaped concave and convex structures along the embedding insertion directions.

The invention discloses an assisting upper cover lock with a cam structure. The lock includes a machine box, a machine box upper cover, a connecting machine box and an upper cover lock body of the machine box upper cover. The machine box upper cover is matched with the machine box through an upper cover clamping groove, and the upper cover lock body includes a handle, a button, a housing and a cambracket; the housing is installed on the machine box upper cover, and the cam bracket is installed on the machine box; the handle is rotatably installed on the housing, the cam bracket is matched with the handle on the housing, the button is rotatably installed on the housing, and the button is provided with a button buckling part for limiting the position of the handle. Through the movement modeof cam connection, relative movement of the upper cover and the machine box is achieved, correspondingly more strength is saved during disassembly and assembly of a server upper cover, and the structure is much simpler. Additionally, an existing manual digging-out unlocking mode is replaced with a pressing unlocking mode, and the operation experience is improved.

The invention relates to a tool wagon for assembling and disassembling a chuck of a coiler. The tool wagon is characterized by consisting of wheels, a base, hydraulic jacks, a cross rod, support grooves and a handle, wherein the four wheels are arranged on the lower side of the base and are used for moving the tool wagon; left and right sides of the base are provided with a hydraulic jack respectively; the cross rod is supported on the jacks; and the two support grooves are formed on the cross rod and are used for placing chuck shafts. When maintained, the tool wagon can be completely cleaned without the rotation of the chuck, so operators can be prevented from being injured and the chuck can also be prevented from being damaged by two rolled-down chuck shafts. The tool wagon is easy and convenient to operate, labor-saving, safe and efficient and is suitable for ACW4T-1500 / 10, ACW5T-1380 / 12, I-Q00N6B-1200 / 20 coilers.

The invention discloses a nut demounting tool for metallurgical mechanical equipment. The nut demounting tool comprises a first clamping and fixing mechanism and a second clamping and fixing mechanism. The second clamping and fixing mechanism is located on one side of the first clamping and fixing mechanism, threaded connection fixing blocks are fixedly connected to the left sides of the first clamping and fixing mechanism and the second clamping and fixing mechanism, and a first threaded rod is connected between the threaded connection fixing blocks in a threaded mode. The nut demounting toolhas the advantages that through the first clamping and fixing mechanism, the second clamping and fixing mechanism, a first connection fixing rod, a second connection fixing rod, a connection controlpanel, a connection cylindrical block, a rotating wheel, a fixed connection block, a fixed shaft, a stressed circular block and a rotating rod, the nut demounting tool can demount hex nuts of different specifications; the nuts can be dismounted easily through length adjustment of the rotating rod; the nut demounting tool is convenient to adjust, simple to operate and capable of meeting people's needs.

The invention belongs to the technical field of power maintenance appliances and discloses a tool specially for assembling and disassembling a power circuit spacer and an assembling and disassembling method thereof. The tool is mainly and technically characterized by comprising a handle and a tool head, wherein a pull rod of which the free end is provided with a hook is movably connected to one side of the tool head through a fixing pin; and the other side of the tool head is provided with a rotary supporting surface. During use, the pull rod tilts upwards and penetrates from a through hole in one side of a fastening ring to the other side of the fastening ring, so that the edge of the fastening ring is hooked by the hook, and the rotary supporting surface of the tool head is pressed against the fastening ring; and moreover, the handle is rotated, so that the tool head rotates around the rotary supporting surface, the pull rod and the hook move upwards, the fastening ring is driven to be fastened, a fastening ring pin can be easily unplugged and inserted, the assembly and disassembly are convenient, the labor intensity is low, and the working efficiency is greatly improved.

The invention relates to a locking and separating disassembly and assembly structure of a drawer panel. The structure comprises a fixing element and more than two connecting elements, and the fixing element is provided with more than two locking and separating elements; the more than two locking and separating elements are relatively independently arranged, and common elastic assemblies are arranged among the locking and separating elements; the more than two locking and separating elements elastically rotate or swing on the fixing element through the elastic components respectively, and are locked and separated from the more than two connecting elements respectively during rotation or swing so that the more than two connecting elements are disassembled and assembled on the fixing element; a movable part is arranged on one locking and separating element; the movable part moves on the locking and separating element in a limiting manner; and one connecting element acts on the movable part when sliding relative to the fixing element, drives the corresponding locking and separating element to elastically rotate or swing on the fixing element and is in locking fit with the connecting element. The drawer panel can be locked and detached conveniently, the use experience of a user is improved, and meanwhile the structure is simple and reasonable.

The invention relates to the water treatment industry, in particular to drinking water filtering. The invention discloses a rotational connection method of rotational inserting structures of filter cylinders of a water purifier, and a closed filter cylinder. The filter cylinders which are internally provided with filter liners and are provided with movable covers at least comprise cylinder structures of lower end covers provided with penetrated bottoms or water passing ports; the rotational inserting structures are arranged on the external circumference surfaces of cylinder walls at the lower parts and the upper parts of the filter cylinders; a machine base corresponding to the rotational inserting structures at the lower parts of the filter cylinders is provided with the rotational inserting structures; the rotational inserting structures on the external circumference surfaces of the cylinder walls of every two adjacent filter cylinders are mutually inserted, connected and matched in a tangent direction to form an upper part filter cylinder connection structure; inner cavities of the filter cylinders and the machine base form connected and sealed water passing channels by sealing elements; the water passing channels are communicated with water passing pipelines and the fronts and the backs of filter material layers to form filtering channels; the filter cylinders internally provided with the filter material layers are connected with the lower end covers provided with the water passing ports and upper end covers to form a whole; and the sealing elements which are arranged around axes of the filter cylinders at the lower parts, are concentric and have different diameters are arranged in parallel in the water passing ports, and are communicated with the two sides of the filter material layers.

The invention discloses a novel fuel pump assembling and disassembling tool. The tool comprises an annular disc (1), a handle part (2), supports (3), clamping grooves (4), clamping jaws (5), a fixingrod (6), a sleeve (7), an operating rod (8) and a center hole (11); the two supports are arranged on one side surface of the annular disc; the annular disc is connected with the handle part through the two supports; the tool is characterized in that the multiple clamping grooves are formed in the periphery of the annular disc; the clamping jaws are connected in one or more clamping grooves; the radial thickness of the clamping jaws is smaller than the radial depth of the clamping grooves; the handle part comprises a fixing rod, a sleeve and an operating rod; the periphery of the fixing rod isconnected with the two supports; the two ends, away from the center hole, of the fixing rod are sleeved with the sleeves respectively; the sleeves can extend and retract relative to the fixing rod; and in the same projection view, the center line of the fixing rod passes through the circle center of the center hole. The fuel pump assembling and disassembling tool is labor-saving and time-saving inassembling and disassembling, high in efficiency, stable to cooperate and firm to operate.

The invention relates to the technical field of buildings, in particular to a laminated slab, which comprises a slab body, a steel bar support and a supporting beam assembly. The steel bar support comprises a support body and a connecting part arranged on the support body, and the support body is fixed on the slab body; the supporting beam assembly comprises a supporting pipe, a mounting part and a fixing piece, the mounting part is fixed to the supporting pipe, and the mounting part is detachably connected to the connecting part through the fixing piece. After pouring of the laminated slab is completed, the supporting pipe can be detached from the connecting part, the detached supporting pipe can be recycled so as to reduce waste, the supporting pipe and the connecting part do not need to be separated in a cutting mode, the operation difficulty can be lowered, the construction efficiency can be improved, and the labor intensity can be lowered. In addition, due to the fact that the supporting pipe is provided with the mounting part, the supporting pipe can be kept complete, the bending strength of the supporting pipe is improved, and the supporting effect of the supporting pipe on the slab body is improved.

The invention discloses a high-speed rotary cup dismounting and mounting tool which comprises a pliers body, wherein the pliers body comprises a left pliers handle and a right pliers handle; the middle of the left pliers handle and the middle of the right pliers handle are mutually crossed and hinged; a left clamping part and a right clamping part are fixedly connected with or integrally formed onthe inner side of the front end of the left clamping part and the inner side of the front end of the right clamping part respectively; the left clamping part and the right clamping part are arrangedoppositely; and the inner wall of the left clamping part and the inner wall of the right clamping part are detachably propped against a high-speed rotary cup. The high-speed rotary cup dismounting andmounting tool disclosed by the invention is high in dismounting and mounting efficiency, low in processing cost, simple in structure, and convenient to use.

The invention discloses mute water supply equipment, which relates to the technical field of water supply equipment. According to the technical scheme, the mute water supply equipment comprises an equipment body, wherein the equipment body is provided with a water inlet part, a mute water delivery device and a water outlet part, the mute water delivery device comprises a submersible pump and a mute cylinder, the mute cylinder is provided with a connecting flange, the equipment body is provided with a reset dismounting device, the reset dismounting device comprises a shell, a driving assembly and a telescopic piece, the driving assembly comprises a meshing piece, a first rack and a second rack, the meshing piece is provided with meshing teeth, the second rack is meshed with a gear, the telescopic piece is provided with a rotating block, the telescopic piece is provided with a plug pin and an inserting hole, and the rotating block is provided with a penetrating hole. The mute cylinder isfixedly connected with the submersible pump, and the connecting flange is arranged, so that the damaged submersible pump can be further conveniently detached and taken out by personnel; the connecting flange and a positioning block are obliquely arranged, so that the mute cylinder can be conveniently mounted back to the mounting position by personnel; and by arranging the reset dismounting device, dismounting and mounting of the mute cylinder are more labor-saving.

The invention discloses a high-formwork angle monitoring device capable of being disassembled and assembled quickly and a monitoring method thereof. The device comprises a detection mechanism and a disassembly and assembly mechanism, wherein the disassembly and assembly mechanism comprises two magnetizers, a connecting piece, a rotatable permanent magnet and a non-magnetic isolation plate. And thetwo magnetizers are oppositely arranged and are arranged on the high-framework. A separation space and a rotation space are reserved between the two magnetizers. The two ends of the connecting pieceare connected to the detection mechanism and the two magnetizers. The rotatable permanent magnet is rotatably installed in the rotating space, two magnetic poles which are oppositely arranged are distributed in the rotating radial direction, and the magnetism of the two magnetic poles is opposite. The assembly or disassembly process can be achieved only by rotating the rotatable permanent magnet by 90 degrees, more convenience and quickness are achieved, the disassembly and assembly efficiency can be improved, and the utilization rate of the device can be increased. Due to the fact that installation is conducted in a magnetic attraction mode, the device is firmer after installation and not prone to falling off, and continuous monitoring is guaranteed.

The invention relates to the technical field of an air filter box, in particular relates to a novel cell air filter box. The novel cell air filter box comprises a box body, a box door and an inertial type air filter, wherein the box body is fixedly connected with the box door, an inertial type air filter is arranged in the box body, the box body is composed of an upper box body and a lower box body, a reinforcing plate is arranged between the upper box body and the lower box body, the lower end of the upper box body is provided with an air inlet, the upper box body is internally provided with a bag type air filter device, the upper end of the bag type air filter device is provided with an air outlet, and the upper end of the box door is provided with a molding sealing element. The novel unit air filter box has the advantages of simple structure and strong practicability and is convenient to use. The filtering element in the cell air filter box are reasonably selected, thus optimizing the whole structure, effectively improving the filtering precision and efficiency of the system, and being conductive to optimizing the whole system performance; meanwhile, the assembly and disassembly of the filter element are convenient, quick and labor-saving, thus improving the filter performance of the whole system and being easily popularized.

The invention discloses a piston type compressor air valve disassembling and assembling tool capable of achieving force counteracting fastening. The piston type compressor air valve disassembling andassembling tool capable of achieving force counteracting fastening structurally comprises a hand shank, an adjusting frame, a connecting buckle, a pressing rod, a pressing head, a screw and a thread bushing. The piston type compressor air valve disassembling and assembling tool capable of achieving force counteracting fastening has the beneficial effects that force counteracting mechanisms cooperate with main air bags and auxiliary air bags, a compressor air valve bears the acting force of abut-pressing plates while the compressor air valve extrudes contact-pressing plates, therefore, force counteracting is achieved, ejection of the compressor air valve is improved, and the condition that the pressing head and the compressor air valve slide off in the force exerting process to be seriouslydeformed due to rigid collision when disassembling and assembling are conducted is prevented; and meanwhile, a plurality of oblique convex strips are arranged on the surfaces of the abut-pressing plates, therefore, the friction force between the abut-pressing plates and the compressor air valve is increased when the abut-pressing plates make contact with the compressor air valve, and the labor saving and quick disassembling and assembling effects are achieved in the compressor air valve disassembling and assembling process.

The invention relates to the technical field of embroidery machines, and particularly discloses a cloth clamping tabouret which at least comprises a frame unit, a cloth supporting unit, a movable wall, a driving system and a cloth pressing structure, the cloth pressing structure is provided with a containing cavity, the two sides of the containing cavity are a first cavity wall and a second cavity wall respectively, the minimum distance between the first cavity wall and the second cavity wall is L2, and L2 is larger than L2. The maximum width of the cloth supporting unit is L1, L1 is smaller than or equal to L2, and the thickness of the first cavity wall is smaller than the width of the movable interval. According to the structure, no resistance exists between the cloth pressing structure and the cloth supporting unit in the process of disassembling and assembling the cloth pressing structure from the cloth supporting unit, compared with a cloth clamping structure, disassembly and assembly are labor-saving, fabric cannot be damaged in the disassembly and assembly process, and the clamping device can adapt to clamping of fabric of different specifications; the driving system is arranged on the frame unit, the position of the driving system is fixed, a related pipeline structure cannot move in the fabric disassembling and assembling process, the structure is simpler, the cost is lower, the structural layout is more reasonable and reliable, and the structural stability is better.

The invention discloses a box cover lock for disassembling and assembling a server case without tools, and belongs to the technical field of server case disassembling and assembling devices. The box cover lock comprises a fixed shell, a Drag block, an operation panel, a Connecting plate and a positioning column; the upper end surface of the fixed shell is opened; the fixed shell is arranged on oneside, close to the case body, of the case cover; the open end of the fixed shell is connected with the box cover; an inner cavity of the fixed shell is communicated with an operation hole of the boxcover; a positioning column sliding hole is formed in a bottom plate of the fixed shell; the positioning column sliding hole is matched with the positioning column; the positioning column is connectedwith the case body; the dragging block is in sliding connection with the fixed shell; The dragging block is provided with a positioning hole matched with the positioning column, the operation plate is arranged above the dragging block, one end of the operation plate is hinged to one end of the dragging block, the connecting plate is arranged at the hinged end of the operation plate and the dragging block, one end of the connecting plate is hinged to the middle of the operation plate, and the end, away from the operation plate, of the connecting plate is hinged to the side wall of the fixing shell. Tool-free assembly and disassembly of the case body and the case cover are realized, so that the server case is convenient, quick and labor-saving to assemble and disassemble.

The invention relates to the field of guardrails, and provides a bed guardrail. The bed guardrail comprises a frame-shaped support, a stop piece and an extension baffle or a movable surrounding fabric, wherein the extension baffle or the movable surrounding fabric is used for filling the gap between a backrest plate and the frame-shaped support; the frame-shaped support is formed by connecting a left guardrail vertical rod, a right guardrail vertical rod, an upper guardrail transverse rod and a lower guardrail transverse rod, and the stop piece is arranged on the surface of the frame-shaped support. When the extension baffle is adopted, the extension baffle is arranged on one guardrail vertical rod of the frame-shaped support. When the movable surrounding fabric is adopted, one end of themovable surrounding fabric is connected with one guardrail vertical rod of the frame-shaped support, and the other end of the movable surrounding fabric is provided with a connecting part for fixing the end. By means of the bed guardrail, the safety of a baby on the bed can be more comprehensively protected, and various potential safety hazards and risks caused by gaps formed by the backrest plateand guardrail bodies on the two sides are avoided. Meanwhile, a snap-button mechanism is improved, the guardrail vertical rods and the guardrail transverse rods are used, so that disassembly and assembly saves more labor, and the problem that finger pain and injury are caused during single-finger operation is solved.