32results about How to "Easy and quick removal" patented technology

The invention relates to a construction method for replacement of tail brushes of a shield, wherein, a tail device of a shield machine is provided with preset freezing pipes. The invention comprises the following operation steps that: replacement of the tail brushes is determined; a propulsion parameter of the shield is adjusted, and the shield posture is controlled; a special freezing ring is assembled in front of a common ring by utilization of freezing segments; the freezing pipes and temperature tubes are buried into the freezing segments in advance; a special replacement ring which is used for replacement of the tail brushes is assembled in front of the special freezing ring; the freezing pipes and freezing equipment are connected; the peripheral soil mass of a shield tail is frozen, and a freezing purdah for waterstop is formed on the rear of the tail brushes; the tail brushes are replaced one by one under the protection of the freezing purdah, and waterproof greases are infused into the tail brushes; the freezing purdah is forced to be unfrozen after replacement of the tail brushes is finished; normal propulsion of the shield is restored. The construction method for replacement of the tail brushes of the shield has the advantages of good waterstop effect, safety and reliability, simple and convenient operation and strong environmental suitability, is widely suitable for various complex special geological conditions and is particularly suitable for construction of a large-scale large-diameter bridge tunnel.

The invention discloses an aero-engine nozzle deposit carbon removing method which comprises the steps that a special tool is used for carrying out mechanical scraping on deposit carbon; a hydraulic tester is used for carrying out impact washing on nozzle deposit carbon; ultrasonic cleaning is carried out on the nozzle after impact washing; chemical washing is carried out on the nozzle after ultrasonic cleaning with a water solution with NaOH of 8-10g / L, Na3PO4 of 18-20g / L and Na5P3O10 of 27-30g / L; and ultrasonic cleaning is carried out again on the nozzle after chemical washing. According to the method, mechanical scraping, high-pressure oil impact, chemical washing and ultrasonic cleaning are combined, compared with a method only with ultrasonic cleaning, the average service life of the nozzle can be prolonged by 3-5 times, the rejection rate of engine nozzles is greatly lowered, and economical benefit is obvious.

The invention relates to the technical field of pipe gallery construction, and discloses a construction method for a pipe gallery to down-pass a river channel. The construction method comprises the following steps that S1, steel sheet piles are inserted from one side of the river channel to the opposite side to form a cofferdam until the end part of the cofferdam reaches a set position; S2, waterin the cofferdam is discharged, an installation groove is excavated and formed in the cofferdam, and the pipe gallery is installed in the installation groove until the pipe gallery is close to the endpart of the cofferdam; S3, a waterproof wall is arranged at the end part of the pipe gallery, a transfer weir is formed at the cofferdam through separation, moreover, the end part of the pipe gallery1 is located in the transfer weir, and the steel sheet piles not involved in the transfer weir are removed; S4: the steel sheet piles are inserted from the transfer weir to the opposite side to formthe next cofferdam until the end part of the next cofferdam is located at the next set position, the steel sheet piles at the end part of the last cofferdam are removed, and the step 2 and the step 3are performed; and S5, the step 4 is repeated until the pipe gallery is installed to the opposite side. According to the construction method, the problems of poor applicability of a flow division method, environmental damage of a phased soil cofferdam method and high cost of a pipe jacking construction method are effectively solved.

The invention provides a surplus-glue processing method of a circuit board, wherein the method is suitable for manufacturing a circuit board, and aims to solve the problems that by means of leveling and board brushing in the prior art, surplus glue cannot be removed, and the appearances of circuit boards cannot be guaranteed. The surplus-glue processing method of the circuit board comprises the following steps that a daughter board of a mixed-voltage circuit board is prepared; a mother board of the mixed-voltage circuit board is prepared; a core board of the mixed-voltage circuit board is prepared; as for outer processing, laminating technique processing, single-face microetching copper reduction technique processing, leveling and board brushing technique processing, drilling technique processing, electroplating technique processing and outer pattern transfer technique processing are conducted in sequence. The invention further provides the circuit board formed in the surplus-glue processing method of the circuit board. According to the method, the surplus glue is removed in batches by means of leveling and board brushing, so that it is guaranteed that the thickness of copper of the circuit board reaches a required value; besides, it is guaranteed that the appearance of the circuit board is undamaged, good reliability is obtained, the defects produced by manual glue removing can be overcome, and batch processing of glue removing can be achieved.

The invention discloses a high efficiency phosphorus-free degerming laundry detergent. The laundry detergent comprises sodium polyacrylate, saponified sodium, sodium alkyl benzene sulfonate, potassium alkyl phosphate, coconut fatty acid, calcium hypochlorite and water. The laundry detergent provided by the invention has strong detergency, can easily and rapidly remove a variety of stubborn stains, mitigates harm to skin to the greatest extent, is superior in removing bacteria and killing mites, has biodegradability of 97.5% and produces no pollution; the laundry detergent has the advantages of superior efficacy, a low price and no harmful influence on a human body.

The present invention relates to a device for receiving plate-shaped substrates (3) for treating them in a treatment appliance in the form of a plasma CVD appliance (PECVD), wherein each substrate hasa front face and a rear face opposite the front face, comprising at least one receiving device (5, 5') for receiving and fixing the substrates (3, 3'), wherein the receiving device has at least two receiving areas (7), in particular a multiplicity of receiving areas (7), wherein at least two substrates (3, 3') are or can be arranged in each receiving area, wherein a rear face of a first substrate(3) is directly in contact with or can be brought directly into contact with a rear face of a second substrate (3'), and wherein at least two receiving areas (5) are arranged parallel, in particularalmost parallel, to each other and are connected to each other by means of insulating connection elements (19), and wherein the parallel receiving areas (5) are connected or connectable in alternationto the outputs of different polarity of a high-frequency generator.

The invention relates to a method for producing a plastic housing, in particular a pump housing, which is produced from plastic by means of injection molding by injecting liquid plastic into a mold (110) having at least one mold core (111) and at least one slide (114) that is used to form an undercut. According to the invention, a sealing device (100) is arranged on the outer circumference of the mold core (111) before the insertion of the slide (114) and before the injection step, by means of which sealing device an end face of the slide (114) adjacently facing the mold core (111) and a surface section of the mold core (111) corresponding to said end face are sealed with respect to each other when the slide (114) is in the inserted stop position. The sealing device (100) is designed as a sealing ring and has a projection (102), which is shaped complementary to a groove (112) formed on the mold core (111) in order to fix the sealing device on the mold core (111).

The invention discloses a vertical hoisting system for glass boards of a special-shaped curtain wall. A fixing steel frame is mounted on a floor above a to-be-hoisted floor in a suspended mode, a top pulley and an adjusting winch are fixedly mounted at the suspended end of the fixing steel frame, and a cableway is obliquely mounted between the fixing steel frame and the ground and composed of two parallel cableway steel wire ropes; sleeves are slidably mounted on the two cableway steel wire ropes, a hoisting steel frame is welded to the two sleeves, a hoisting winch is fixed to the ground, and a hoisting steel wire rope of the hoisting winch winds across the top pulley and then is connected with the top of the hoisting steel frame; and a hoisting pulley is mounted on the upper portion of the side, facing the to-be-hoisted floor, of the hoisting steel frame, and an adjusting steel wire rope of the adjusting winch winds across the hoisting pulley and then is connected with a to-be-hoisted glass board. By means of the vertical hoisting system, rapid, easy, convenient, safe and accurate hoisting and installing of the glass boards of the special-shaped curtain wall are achieved, hoisting difficulties of the special-shaped curtain wall are overcome, the installing efficiency of the curtain wall is greatly improved, and the curtain wall can be repeatedly used for different projects.

The invention provides a device for emergent removing door hinge connections. The device for emergent removing the door hinge connections comprises a fixed support and a pin mounted in a pin hole of the fixed support, the device is characterized in that the bottom of the pin is provided with a magnet, the bottom of the pin hole of the fixed support is also provided with a magnet, a top plug passes through the fixed support and is contacted with the bottom of the pin, a spring is located at the upper portion of the top plug, the lower portion of the top plug is matched with an emergency trigger thrust device, both of the top plug and the emergency trigger thrust device are located in a bracket, the bracket and the fixed support are connected in a threaded mode, the bracket is located under the fixed support, and a rubber cushion is arranged between the bracket and the fixed support. According to the device for emergent removing the door hinge connections, the magnets are used to restrain possible axial movement of the pin in normal car driving process, when the hinged connection needs to be removed, the emergency trigger thrust device generates great thrust and pushes the top plug to move upward rapidly, therefore the top plug is used for the pin to overcome axial restriction of the magnets and disengage the pin hole, so that vehicle door hinge connections are removed, and the vehicle door is easy to be disassembled. The device for emergent removing the door hinge connections can quickly remove the vehicle door hinge connections, make it convenient to disassemble the vehicle door, and quickly create an escape passage.

The invention provides an auxiliary formwork removing device for a vertical column bottom formwork, and a formwork removing method. The auxiliary formwork removing device for the vertical column bottom formwork and the formwork removing method are used for solving the technical problem that in the prior art, after a vertical column is prefabricated in a factory, a bottom formwork bonded to the bottom face of the concrete vertical column is large is formwork removing difficulty. The auxiliary formwork removing device comprises a fixing component fixedly connected with the ground, a supporting component used for supporting the vertical column bottom formwork is connected to the fixing component, the vertical column bottom formwork is separated from the ground under the effect of the supporting component, a pre-tightening component is arranged between the vertical column bottom formwork and the fixing component, the fixing component provides pre-tightening tension for the vertical columnbottom formwork through the pre-tightening component to enable the vertical column bottom formwork to be separated from the bottom face of the vertical column, and the vertical column can be separatedfrom the vertical column bottom formwork under driving of a displacement component. The auxiliary formwork removing device has the following beneficial effects that (1) compared with the prior art, aplastic film or a man-made partition plate does not need to be laid on the vertical column bottom formwork, and demounting operation of the vertical column bottom formwork is easy and quick; and (2)demounting of the vertical column bottom formwork can be achieved by selecting the displacement component with small power consumption, and the power consumption of the auxiliary formwork removing device is significantly lowered.

The invention provides an environment-friendly urban advertisement sticker removing device, which comprises a base and a lifting plate; a water tank is arranged in the middle of the top of the base; awater outlet is arranged at the bottom of the water tank; bearing check blocks are arranged in the middles of the two sides of the interior of the water tank; and filter net bags matched with the bearing check blocks are arranged at the tops of the bearing check blocks. According to the environment-friendly urban advertisement sticker removing device provided by the invention, water liquid is stored in the water tank, conveyed into a communicating pipe through cooperation of the water pump and a liquid guide pipe, and diffused to the surface of a brush roller through communication between thecommunicating pipe and a water spraying opening and seepage between seepage layers; a soaked paper surface is cleaned along with the rotation of the brush roller and the friction matching of scrapingbrush of a scraping plate and an abrasive grain layer, so that the paper surface and the wall surface can be effectively and completely removed, meanwhile, the damage to the wall surface is greatly reduced, the operation mode is convenient and quick, the removal effect is better, the working difficulty of operators is reduced, and the practicability of the device is increased.

The invention discloses a tower crane slewing bearing washer spraying protective device. The tower crane slewing bearing washer spraying protective device comprises at least two protective blocks (3) which are put together to form an annulus; the top surface of each protective block (3) is provided with at least one handle (4), and the bottom surface of each protective lock is provided with a cylinder (5); there is a one-to-one correspondence between the number and the positions of the cylinders (5) and bolt mounting holes (6) formed in a slewing bearing washer (1), and the cylinders are in interference fit with the bolt mounting holes formed in the slewing bearing washer. The cylinders of the protective blocks are in interference fit with the bolt mounting holes formed in the slewing bearing washer, the protective blocks are attached to the surface of the slewing bearing washer, the surface of the slewing bearing washer and the bolt mounting holes are completely protected, and the protective effect can not be affected when spraying and turning over are conducted.

The invention discloses liquid for eliminating microbial pollution and an application method thereof. The liquid contains povidone iodine and PEG 8000. The liquid capable of eliminating the microbialpollution provided by the invention can kill fungi, bacteria, viruses, mycoplasma and other microbial pollution in a broad-spectrum mode and has no obvious toxic effect on cells; and in addition, theliquid is simple to prepare, the preparation cost is low, the popularization is easy, and meanwhile, the problems of microbial pollution caused by biological sample storage, cell culture and the likecan be easily, conveniently and rapidly solved.

The invention relates to the field of floating transport construction of a submarine immersed tube tunnel, and provides a vertical temporary passage for entering and exiting an immersed tube and a construction method of the vertical temporary passage. The vertical temporary passage has the advantages that the temporary passage is arranged under a manhole well, and the passing at the exterior and in a tube joint can be realized by the temporary passage in a tube joint sinking installation process of the immersed tube, so as to facilitate the subsequent construction; the temporary passage is stable and durable; the construction and detachment are simple, convenient and rapid, and repeated detachment and installation for multiple times are realized; after the temporary passage is detached, since the size is small, the transportation and storage are convenient.

The invention discloses an air purification device with a filter element convenient to replace, which relates to the technical field of air purification devices. The air purification device comprises a purification box, a fixing plate is fixedly mounted on the inner wall of the purification box, a fixing hole is formed in the top of the fixing plate, and a mounting pipe is fixedly mounted on the inner wall of the fixing hole; a mounting hopper is fixedly mounted at the top end of the mounting pipe, a telescopic cylinder is fixedly mounted on the inner wall of the bottom of the purification box, two mounting plates are fixedly mounted on the inner wall of one side of the purification box, and a sliding plate is fixedly mounted on the other inner wall of the purification box. The air purification device is reasonable in structure, the filter element can be quickly mounted and dismounted, so that the air purification device is simpler to use, the filter element can be more conveniently and quickly replaced, people do not need to dismount the air purification device when replacing the filter element, the filter element replacement speed is increased, and the air purification device is not prone to damage and longer in service life; and the air purification effect of the air purification device is better.

The invention relates to the technical field of hanging basket erection in high-altitude outdoor corridor decoration construction, in particular to a movable hanging basket suspension system for high-altitude outdoor corridor decoration construction, which comprises a cross beam crossing an outdoor corridor, stand columns, walking longitudinal beams in the same direction as the corridor, pulleys, U-shaped connecting pieces and safety steel wire ropes, the working steel wire rope and the safety steel wire rope are arranged on the two sides of the hanging basket; the stand column is composed of an upper stand column body and a lower stand column body, U-shaped connecting pieces are welded to the bottom of the upper stand column body and the upper portion and the bottom of the lower stand column body, and the cross beam and the stand column body are connected through the U-shaped connecting pieces. The walking longitudinal beams are fixed to the bottoms of the lower stand columns through the U-shaped connecting pieces on the lower stand columns. The movable hanging basket suspension system for high-altitude outdoor corridor decoration construction can move in the longitudinal direction of an outdoor corridor, and rapid turnover is achieved.

An inspecting device for inspecting a wedge surface (16) of a wedge (15) for fixing a stator bar (11) of a generator (7), in particular for measuring the deflection of the wedge surface (16), whereinthe generator has an axis (2) and comprises a in inner rotor (6) and an outer statoric part (8) provided with a plurality of axial groove (10) for housing in a recessed position stator bars (11) keptin position by wedges (15), an airgap (12) being present between the inner rotor (6) and the outer stator part (8); the inspecting device comprises a vehicle (19) having a size suitable for being inserted in the generator air gap (12) in presence of the rotor (6) and for axially running along the rotor axis (2) facing the wedge surface (16) to be measured; the vehicle (19) being provided with a contactless sensor device configured for inspecting the wedge surface.

The invention discloses a mop convenient in spin-drying. The mop comprises a rotary mop rod and a mop head and is characterized in that a U-shaped elastic piece is arranged in the inner cavity of a connector between the mop rod and the mop head, a clamp spring button is arranged at one end of the elastic piece, the clamp spring button penetrates the inner wall of the cavity of the connector to extend out of the connector, and two limit grooves are symmetrically formed in the outer side of the cylindrical connector; the mop head comprises a mop seat and a mop thread plate, the upper end of mopseat is a hollow cylindrical sleeve, two protruding limit ribs are symmetrically arranged on the inner wall of the sleeve, and the wall of the cylindrical sleeve is provided with a clamp spring buttonbutt joint through hole penetrating the wall of the cylindrical sleeve. The long-thread mop has the advantages that the mop is simple in structure, the mop is coordinated with the rotary mop rod anda matched rotary mop bucket, spin-drying can be achieved, the mop rod and the mop head adopt a clamp spring type connecting manner, the mop head can be fast demounted and mounted, and cleaning efficiency and quality can be increased.

The invention relates to a side cover plate type cable bridge frame which is provided with a groove body with a G-shaped section, and a side cover plate with a U-shaped section is arranged on the notches of the groove body. A 90-degree stiffened edge folded inwards is respectively arranged at an upper notch and a lower notch of the groove body, and a 90-degree stiffened edge folded towards one side is also respectively arranged at the upper edge and the lower edge of the side cover plate. An elastic hasp lock is arranged between the upper edge of the side cover plate and the upper notch of thegroove body, and mutually articulated hinges are arranged between the lower edge of the side cover plate and the lower notch of the groove body. The side cover plate type cable bridge frame can be installed by abutting against the corner top of an object with no need of considering the space of the top surface and the lateral side of the bridge frame, optimizing the installation structure and being quite suitable for the application on various engineering construction and shipping trades. The side cover plate type cable bridge frame can be conveniently, safely, rapidly and reliably installed,and can also be conveniently and rapidly overhauled or dismantled. When cables are laid, only a side cover of the cable bridge frame needs to be laterally opened to easily lay and adjust the cables,and then the side cover plate is covered.

The invention discloses an indicator diagram sensor structure which comprises a sensor body, an adjusting assembly is installed in the bottom end of the sensor body, a force measuring sensor core body is installed in one side of the top end of the sensor body, and the force measuring sensor core body is detachably installed in one side of the top end of the sensor body through a limiting mechanism. The limiting mechanism comprises a sensor installation groove, an installation assembly, a wire hole, a pressing plate and a third cross-shaped groove pan head screw, the sensor installation groove is formed in the sensor body, a force measurement sensor core body is installed in the sensor installation groove, the force measurement sensor core body is installed in the sensor installation groove through the installation assembly, force is laterally applied to the sensor through the pressing plate, so that the stress rod generates displacement change, the displacement change is transmitted to the interior of the sensor core body, and an output signal of the sensor is changed along with the change, thereby achieving the purpose of measurement.

The invention discloses a frame structure motor and an assembly method. The frame structure motor comprises a base shell, a stator shell and a modular stator, the base shell comprises a front frame and a rear frame, a front end cover mounting plate is fixed to the outer side of the front frame, a rear end cover mounting plate is fixed to the outer side of the rear frame, a plurality of transverse supporting beams are welded between the front frame and the rear frame, and a rectangular through groove is formed by every two adjacent transverse supporting beams and the side walls of the front frame and the rear frame. A rectangular through groove is formed in the stator shell, a stator shell is assembled in the rectangular through groove, the stator shell comprises a stator mounting plate, limiting side plates and an arc-shaped iron core mounting block, the arc-shaped iron core mounting block used for mounting a modular stator is fixed on the inner wall of the stator mounting plate, and the limiting side plates are arranged on the two sides of the arc-shaped iron core mounting block. According to the invention, tools and working hours can be saved, the reliability of the motor is improved, and each modular stator can be conveniently and rapidly disassembled and replaced under the condition that the whole machine is not disassembled.

The invention relates to a sliding type silo cantilever tripod structure and a mounting method. The sliding type silo cantilever tripod structure comprises a C-shaped clamping groove, a sliding connection mechanism and brake devices used for limiting the movement of a sliding mechanism, a hanging plate is arranged at the fixed end of a cantilever tripod, and the C-shaped clamping groove is pre-buried in a silo wall; the sliding connection mechanism comprises a springing baffle, a spring and a sliding baffle, wherein the spring is arranged between the springing baffle and the sliding baffle which are oppositely arranged, and balls are arranged on the contact surface of the sliding baffle and the C-shaped clamping groove; and by rotating the silo cantilever three-legged hanging bracket, thespring in the device is started accordingly, and the purpose of mounting the silo cantilever three-legged hanging bracket is achieved. The structure is completely made of common materials and is simple and practical, and the three-legged hanging bracket can freely slide in the C-shaped channel steel and can be freely adjusted according to the actual size on site.

The invention discloses a scaffold wall connecting piece and a construction method thereof. The scaffold wall connecting piece comprises a first columnar body and a second columnar body, first buckling keys are symmetrically arranged on the wall of an inner cavity of the first columnar body, second buckling keys are symmetrically arranged at one end of the second columnar body, and the second columnar body is inserted into the first columnar body; the second buckling keys and the first buckling keys are distributed in a staggered manner in the axial direction of the inner cavity; the second columnar body can rotate relative to the first columnar body, so that the second buckling keys and the first buckling keys are aligned and distributed in the axial direction of the inner cavity; and after the second buckling keys and the first buckling keys are aligned and distributed, inserting pieces capable of being inserted in or pulled out are arranged in a gap between the second columnar bodyand the first columnar body so that the second columnar body can be detachably connected relative to the first columnar body. The scaffold wall connecting piece has the advantages of being low in cost, rapid to disassemble and assemble, high in construction efficiency, high in connecting reliability, high in repeated utilization rate, capable of increasing the number of times of recycling, long inservice life and wide in application range.

The invention relates to an adjusting bracket for adjusting light paths of a plurality of parallel laser tubes. The adjusting bracket comprises a rack and at least two adjusting frames installed on the rack. The adjusting frame includes kidney-shaped tightening hoops and adjusting bolts installed on the tightening hoops; and the inner circular surfaces of the tightening hoops match the outer circular surface of the laser tubes. The provided adjusting bracket having advantages of simple structure, convenient usage, and low cost is suitable for adjustment of different multi-tube laser light paths; and defect of small application range and low light adjustment efficiency of the existing laser tube adjusting bracket can be overcome.

The invention relates to the technical field of medical auxiliary equipment, and particularly provides an achilles tendon fixing device and a using method thereof. The device comprises at least one fixing set, the fixing set comprises two fixing pieces, each fixing piece is provided with a flexible fixing part and a rigid fixing part, the rigid fixing part comprises a first supporting rod, a firstfixing rod, a connecting rod, a second fixing rod and a second supporting rod which are connected in sequence, the first supporting rod and the second supporting rod are vertically arranged, the first fixing rod and the second fixing rod are detachably connected to the flexible fixing part, the end parts of two first supporting rods in each group are detachably connected through a first threadedrod, the ends of two second supporting rods in each set are detachably connected through a second threaded rod, a window is further formed in the fixing set, and the window penetrates through the flexible fixing part and is located between the first threaded rod and the second threaded rod. The flexible fixing part can be replaced easily and conveniently, and achilles tendon can be tensioned and fixed efficiently and accurately.

A fermentation fertilizer making device for urban and rural courtyard kitchen garbage comprises a fermentation barrel and a sealing cover, wherein openings are formed in the upper end and the lower end of the fermentation barrel, and the sealing cover is used for covering the opening in the upper end of the fermentation barrel. Compared with the prior art, the fermentation and fertilizer making device for urban and rural courtyard kitchen garbage is extremely simple in structure and convenient to manufacture, garbage can be thrown more conveniently due to the up-down through structure of the fermentation barrel, meanwhile, liquid generated in the fermentation process can flow to the ground so that the fermentation effect is improved; after the fermentation is finished, a fermentation product can be conveniently and quickly moved away from the fermentation barrel, so that the kitchen garbage is better utilized, the burden of a garbage treatment mechanism is reduced, and the environmental pollution is alleviated.

The invention discloses a stable cover plate for accelerating drainage of a sewer. The cover plate comprises a base, an assembly plate, a drainage mechanism arranged in the assembly plate, a lifting mechanism arranged in the base and a fixing mechanism arranged in the base. A drainage cavity communicated with the outside is arranged in the base. The drainage mechanism comprises a fixing rod, a drainage assembly used for increasing the drainage space and a protection assembly used for preventing dirt from hindering movement of the drainage assembly. The lifting mechanism comprises a connecting rod, a connecting pipe, a pipeline, a sliding assembly used for controlling the drainage assembly to move, a detecting assembly used for detecting the air pressure above the base and a discharging assembly used for detecting the discharging amount. According to the technical scheme, the cover plate can achieve smooth drainage and accelerate drainage when being blocked, the probability that the sewer cover plate moves along with vibration can be reduced, and the cover plate is safe and reliable.

The invention discloses a machine tool automatic feeding and discharging two-way forklift system and an automatic production line, and the forklift system comprises an X-axis unit, a Z-axis unit and a Y-axis unit; the X-axis unit comprises a fixed platform, an X-axis sliding seat and an X-axis sliding seat driving device; the Z-axis unit comprises a door-shaped frame and a Z-direction driving device; the Y-axis unit comprises two groups of Y-direction material fork driving mechanisms; each Y-direction material fork driving mechanism comprises a Y-direction fixing seat, a sliding rail mounting seat, a first Y-direction sliding rail mechanism, a second Y-direction sliding rail mechanism, a first Y-direction driving device, a second Y-direction driving device and a material fork; the first Y-direction driving device and the second Y-direction driving device can drive the first Y-direction sliding rail mechanism and the second Y-direction sliding rail mechanism to move in the Y direction, and the material fork is installed on the second Y-direction sliding rail mechanism. The forklift system is provided with the X-axis unit, the Y-axis unit and the Z-axis unit, the machine tool can be conveniently and rapidly installed, workpieces can be conveniently and rapidly taken down, the working intensity of operators is reduced, and the machining efficiency is improved.

The invention provides a back pipe indium preparation device, and belongs to the technical field of back pipe indium preparation devices, the back pipe indium preparation device comprises a support I, a right-angle support II is fixedly connected to the support I, a bearing accessory is arranged on a push-pull accessory, and a connecting accessory is arranged on one side of the support II. The device solves the problems that a back pipe indium preparation device often slips under the condition of insufficient power of a roller in the indium coating process, the back pipe shakes under the action of a brush accessory during indium coating, and constant-speed stable rotation of the back pipe cannot be ensured; a structure capable of preventing slipping and driving a back pipe to rotate has the problem that the clamping size is restrained when clamping is stable, and cannot be applied to back pipes with different pipe diameters, so that the application compatibility of the structure is not high, the back pipe is shaken due to insufficient firmness when the back pipe is rotated, the outer surface of the back pipe cannot be uniformly coated with indium, and the service life of the back pipe is prolonged. And when the motor of the linear module on the device is stably assembled, the operation is very tedious when the motor needs to be disassembled.