92results about How to "Solve difficult to disassemble" patented technology

The invention relates to a mechanical airplane wheel disassembly and assembly device. The mechanical airplane wheel disassembly and assembly device comprises a clamping mechanism (1), a frame (2), a lead screw connecting-rod mechanism (3), a rotary shaft (4) and a lifting and overturning mechanism (5). A disassembled airplane wheel can be clamped by adjusting the clamping mechanism (1). The rotary shaft (4) can be driven to swing up and down by rotating hand wheels at the two ends of the lead screw connecting-rod mechanism (3), and thus the airplane wheel is disassembled. When the disassembled airplane wheel needs to be horizontally placed, a user just needs to adjust a hand wheel on the lifting and overturning mechanism (5). The airplane wheel disassembly and assembly device is purely mechanical, simple in structure, convenient to operate and high in practicability for airplane wheels with narrow disassembly and assembly undercarriage spaces, and the problem that an existing disassembly and assembly device cannot be used for turning airplane wheels is solved.

The invention relates to an outer-cavity-type semiconductor laser structure including a laser diode fixing sheet, a lens mounting base, a sleeve, an adjustable sleeve base, an L-shaped support, a grating fixing base, a reflector fixing base, a housing, a heat sink and a pedestal. The laser diode fixing sheet enables fixation of a laser diode and a lens mounting base with a thread structure. The lens mounting base enables coaxial arrangement of the laser diode and a straightening lens. The adjustable base is used for mounting a laser head and the fixed heat sink. The grating mounting base is used for fixing a grating and is fixed together with the L-shaped support so as to realize adjustment of the length of an outer cavity. The heat sink provides support and mounting reference for different parts of the laser. The housing and pedestal form a shielding cavity isolating the inner environment of the laser from the outer environment. The structure is reasonable in component layout and is compact and stable. The weight in reduced and the cost is lowered. Problems of structure complexity and mounting and dismounting uneasiness of an outer-cavity-type semiconductor laser is solved and the invention has significant engineering practical value.

The invention discloses a welding tool for a power module and belongs to the technical field of power module manufacturing. The welding tool comprises a copper base plate positioning tool, a copper-clad plate positioning tool and a power terminal positioning tool, wherein the copper base plate positioning tool comprises a rectangular base plate, two first baffle plates and second baffle plates andis used for positioning the copper base plate of the power module; the two first baffle plates are located at two long edges of the base plate separately; the second baffle plates are located at twoshort edges of the base plate separately; the copper-clad plate positioning tool comprises two third baffle plates which are fixed on the two first baffle plates separately; a plurality of bumps are arranged on opposite side walls of the two third baffle plates respectively; a copper-clad plate of the power module is arranged between the two third baffle plates; and the power terminal positioningtool is connected across the two second baffle plates. The welding tool has the beneficial effects that a welding tool body comprises three assemblies and is easy to assemble, and the production efficiency is improved; and the bumps are arranged on the side walls of the copper-clad plate positioning tool, and the copper-clad plate is fixed by adopting a point contact mode, so that the tool is moreconvenient to dismantle after being welded, and the problem that an adhesive substance is not easy to dismantle is solved.

The present invention relates to a cylindrical lithium battery assembly tool. The cylindrical lithium battery assembly tool includes a lithium battery assembly module and two lithium battery connection modules. The two lithium battery connection modules are symmetrically installed at two ends of the lithium battery assembly module by using assembly screws, and each lithium battery connection module and the assembly screw are connected in a laser welding manner. The laser welding manner has high welding quality, and lowers a probability of faults such as short circuit and poor contact that occur after long time use of corresponding lithium battery. The lithium battery assembly module adopts a modular decentralized installation design, so that the lithium batteries can be installed rapidly no matter how many lithium batteries are assembled, and the lithium batteries are simple to assemble and disassemble; and a gap between any two adjacent lithium batteries is large, so that the heat dissipation effect is good. The lithium battery connection modules can be customized and processed according to a quantity of the lithium batteries that are assembled in a modular decentralized manner in the lithium battery assembly module, the lithium batteries can be connected once, and two lithium batteries do not need to be connected separately. Through adoption of the cylindrical lithium battery assembly tool, a modular disassembling function of a lithium battery pack can be realized.

The invention provides a device for tightening fasteners. The device for tightening the fasteners comprises a tightening assembly and a sleeve. The tightening assembly comprises a tightening shaft and a fixing piece, a limiting piece which is matched with the fixing piece is arranged on the outer wall of the sleeve, and the sleeve can be detachably mounted on a tightening shaft through mutual matching of the fixing piece and the limiting piece. The screwing assembly comprises a sleeve connecting tool which is fixed on the tightening shaft, the sleeve connecting tool comprises a driving mechanism which comprises a driving output piece, and the driving output piece is provided with the fixing piece. Under driving of the driving mechanism, the driving output piece can drive the fixing piece to be in butt joint with the limiting piece and to be disengaged from the limiting piece. The invention further provides the tightening assembly and the sleeve connecting tool in the device for tightening the fasteners.

The invention relates to a manufacturing method of a prefabricated assembled deep-arc wave-proof wall. The method mainly comprises the steps of mounting a stirrup, adjusting and fixing a shaping moulding bed, installing main ribs and binding a reinforcement cage, machining a table base, hoisting a reinforcement cage, adjusting and fixing a shaping mold frame, pouring concrete, hoisting the wave-proof wall, and installing the wave-proof wall. According to the manufacturing method, the reinforcing cage is bound by utilizing the shaping moulding bed: the stirrup and the main ribs are clamped in detachable positioning frames on the two sides, the reinforcement cage is bound, and the detachable positioning frames are pulled away in a fragment mode and the steel reinforcement cage is hoisted integrally; and the anti-wave wall is poured through the shaping mold frame, the reinforcement cage is hoisted on the upper portion of the table base, sliding mold frames on the two sides slide in placealong guide rails and fixed, the sliding mold frames on the two sides are removed after the pouring of the anti-wave wall is completed, and the anti-wave wall is lifted off. The manufacturing method is simple in process, convenient to construct and high in production efficiency; and the formed wave-proof wall is good in quality and high in mounting precision, and the problems of traditional prefabricated anti-wave wall steel bar binding and concrete pouring construction are solved.

The invention provides a fresh air device and an air conditioner with the fresh air device. The fresh air device is mounted on a wall body and comprises a first barrel body, a second barrel body and afan assembly, wherein the first barrel body is arranged on the wall body in a penetrating mode; the second barrel body is detachably arranged in a barrel cavity of the first barrel body; and the fanassembly is arranged in a barrel cavity of the second barrel body, and outdoor gas is conveyed to indoor or an air conditioner indoor machine from the second barrel body by the fan assembly. Accordingto the fresh air device and the air conditioner with the fresh air device, the problem that the fresh air device is not prone to being assembled and disassembled in the prior art is effectively solved.

The invention discloses a heater for a semiconductor graphite thermal field. The heater comprises a bottom plate, an ignition mechanism, a clamping mechanism, a driving mechanism and a hinge mechanism. A bottom plate is a horizontally and transversely placed rectangular plate, support columns are arranged at four corners of the bottom surface of the bottom plate, and the ignition mechanism is arranged on the bottom surface of the bottom plate between the support columns. An outer barrel is arranged on the top face of the bottom plate, a crucible is arranged at the top in the outer barrel, a pair of clamping mechanisms are arranged on the outer barrel and located on the two sides of the bottom of the crucible, the crucible is movably connected with the outer barrel through the driving mechanism, an outer cover is arranged at an opening in the top face of the outer barrel and movably hinged to the outer barrel through the hinge mechanism, and a crucible cover is arranged on the bottom face of the outer cover. The invention further discloses a heating method of the heater for a semiconductor graphite thermal field. The problem that bolts are not easy to disassemble and assemble is solved, inconvenience in secondary use of the crucible heater due to repeated disassembly of the bolts is avoided, and the heating stability of the crucible is improved through cooperative use of all mechanisms.

The invention discloses a pressure bearing device suitable for a pressurized coring tool, which includes a pressure bearing assembly and a pin component, wherein the pressure bearing assembly includes a pressure bearing piston and a pressure bearing sleeve arranged on the pressure bearing piston in a sleeving manner; the pin component includes a shear pin; the upper end of the pressure bearing piston is limited on a pressurized connector in a hexagonal sleeve through a pressure bearing steel ball, and the lower end of the pressure bearing piston is a connecting end connected with a rotary assembly; the pressure bearing sleeve is fixedly connected with the pressure bearing piston through the shear pin; the lower end of the pressure bearing sleeve is limited on a short joint of an outer cylinder; and sand discharge holes and flow channels communicated with an inner chamber of the pressure bearing piston are arranged at the upper end of the pressure bearing piston. The pressure bearing device solves the problem that the conventional pressurized coring tool damages the performance of the outer cylinder as a pin penetrates through the outer cylinder, and achieves the purpose that the structure and performance of the outer cylinder are not damaged.

The invention aims to provide a beaded photo frame. The beaded photo frame is manufactured by using a rope tape and frame beads to bind with an inner core and a back board, wherein the frame beads are replaceable without cutting sections and angles. The traditional processing technology for a photo frame is changed; the processing technology is simpler. Consumers can cut the inner core or the back board according to the desired shapes, and assembly decoration photo frames, screens, box mirrors and three-dimensional box by themselves. According to the beaded photo frame, a nail installation manner in traditional manufacture of the photo frame is changed; furthermore, the problem that the photo frame which is installed through nails cannot be dismounted and disassembled or is difficult to dismount or disassemble can be solved. The assembly manner of the photo frame can be changed without cutting the sections and the angles; the technology is simple and practical, so that the equipment investment and labor cost can be reduced, no pollution caused by sawdust and dust exists, and convenience in repair and maintain is realized; furthermore, the shapes are more varied and personalized, so that the diversification of the home decoration style can be more easily realized, and the consumption mode of home decoration can be changed; the beaded photo frame is further convenient to carry; users can more conveniently replace the inner core or frame beads, so that the individual needs of people can be better met.

The invention discloses a conical bearing disassembly tool, which comprises a first disassembly body and a second disassembly body, wherein the second disassembly body is arranged opposite to the first disassembly body and use for clamping a conical bearing roller in the radial direction with the first disassembly body, the first disassembly body and the second disassembly body comprise disassembly grooves formed in the axial direction and used for enclosing the conical bearing roller and preset cone angles arranged on the side walls of the disassembly grooves and used for being matched with the conical bearing roller correspondingly, and the first disassembly body and the second disassembly body are fixedly connected through a connecting assembly to lock the conical bearing roller. According to the conical bearing disassembly tool, by clamping the conical bearing roller, the disassembly space of a cone bearing can be increased, thus the cone bearing can be disassembled conveniently, operation is easy, disassembly is convenient, meanwhile, the disassembly efficiency is high, and the maintenance cost can be saved.

The invention provides a disassembling and transporting method of a main drive of a shield tunneling machine in a tunnel. The method comprises the steps that other structures except the main drive, ashell and a soil cabin partition plate are disassembled; the soil cabin partition plate is cut to form a notch penetrating through the position between a main drive reduction box and the shell, and the notch is located below the main drive reduction box; a rail to the outside of the tunnel is laid in the notch; a transporting cart which is provided with a plurality of supporting pieces used for supporting the main drive reduction box is supplied; the transporting cart is arranged on the rail and kept below the main drive reduction box, and the supporting pieces make contact with the main drivereduction box; the soil cabin partition plate is annularly cut along the outer wall of the main drive reduction box until the main drive reduction box is completely separated from the soil cabin partition plate, and the supporting pieces completely support the main drive reduction box; the transporting cart is kept on the rail and dragged along the rail, and thus the main drive is transported tothe outside of the tunnel to be disassembled. The main drive is conveyed to the outside of the tunnel to be disassembled, so that the problem that the main drive is not easy to disassemble due to narrow space in a shield tunneling machine shell is solved.

The invention discloses a cylindrical wrench which comprises a cylinder 1, an expansion plug 2 and a pull rod 3. The expansion plug 2 is arranged in the cylinder 1. One end of the pull rod 3 is fixed with the expansion plug 2, and the other end of the pull rod 3 extends out of the cylinder1. A preset number of cutting seams 14 are formed in the cylinder 1 in the axial direction, and a conical surface 12 is further arranged on the inner wall of the cylinder 1. One end of the cylinder 1 is provided with a cylinder opening 11, and the expansion plug 2 can be driven by the pull rod 3 to move along the conical surface 12 so as to change the size of the cylinder opening 11. The cylinder opening is formed in one end of the cylinder , the expansion plug is driven by the pull rod to move along the conical surface, the effect of changing the size of the cylinder opening is achieved, the wrench effect is achieved, and therefore the problem that in the prior art, when thin-wall barrel-shaped pieces are in threaded connection, disassembly and assembly are not easy is solved.

The present invention relates to the technical field of protective devices, in particular to a water meter anti-theft device, which includes a storage chamber for placing a water meter and a water pipe connection joint, snap rings at both ends of the storage chamber, and the storage chamber is along the direction of the center of the pull ring There is an opening through the side wall of the storage cavity, and grooves embedded in the side walls of the storage cavity are provided in the direction of the two side walls of the pull ring, and the water pipe and The connection joint of the water meter is set in the accommodation cavity, so that the user cannot disassemble the water meter, which solves the problem that some unscrupulous residents steal water by changing the direction and modifying the water meter in life; When repairing and replacing the water meter, use a wrench to break it upward along the direction of the pull ring, and a groove is provided, so that the maintenance personnel can easily pull up the pull ring along the direction of the groove to open the accommodating cavity, so as to facilitate the maintenance of the water meter. The problem that the anti-theft device in the prior art is difficult to disassemble after installation is solved.

The invention discloses a high pressure sealing plug comprising an outer end face and an inner contact face. Sealing grooves are arranged below the part, close to the inner contact face, of a plug body, and internally provided with sealing rings, and the center position of the plug body is provided with a first groove which is internally provided with a first sealing auxiliary block. According tothe high pressure sealing plug with the sealing rings which are fastened firmly and are not liable to shift, the shortcomings that the sealing rings arranged on the sealing plug are liable to shift orslide and consequently the high pressure plug is failed are overcome. The center position of the plug body is provided with the first groove which is internally provided with the first sealing auxiliary block, and the expansion for the plug body can be achieved through the first auxiliary block by extrusion of the plug body after the plug body is installed in a hydraulic valve block; and the pressure between the plug body and the pipe wall of the hydraulic valve block is increased, thereby playing a role in fixation of the plug body.

The invention discloses a spline shaft dismounting device, used for taking out a spline shaft with the top extending out of a sleeve from the sleeve. The spline shaft dismounting device comprises: a fixed cylinder body provided with an external thread on the outer surface and sleeved and fixed to a sleeve; a torsion barrel provided with a threaded hole matched with the external thread, wherein the torsion barrel moves in the axial direction of the fixed barrel through rotary matching of the threaded hole and the external thread; an elastic lining sleeved and fixed to the top of the spline shaft, wherein the elastic lining faces the end face of the torsion cylinder and is used for being in contact with the torsion cylinder. when the torsion cylinder is controlled to move in the direction facing the elastic lining, the torsion cylinder applies acting force to the end face, facing the torsion cylinder, of the elastic lining, so that the elastic lining and the spline shaft are synchronously pushed away from the sleeve by the torsion cylinder, and then the spline shaft is separated from the sleeve; the device which is convenient to operate and simple in structure solves the problem that the spline shaft is difficult to disassemble during interference fit connection.

The invention discloses a low-voltage power distribution cabinet, and relates to the technical field of power distribution cabinets, in particular to a low-voltage power distribution cabinet, which comprises a bottom plate, circular holes which are symmetrically distributed are formed in the bottom plate, main piles which are oppositely distributed are movably connected to the circular holes in the bottom plate, and fixed bases are fixedly connected to the bottom ends of the main piles. According to the low-voltage power distribution cabinet, the symmetrically-distributed circular holes are formed in the bottom plate, the fixing nuts which are oppositely distributed are in threaded connection with the two sides of the outer portion of the bottom plate, the symmetrically-distributed main piles are movably connected into the circular holes in the bottom plate, and meanwhile the fixing bases are fixedly connected to the bottom ends of the main piles; by means of the notch formed in the outer portion of the main pile and the nut in the fixing base, it can be guaranteed that the device can be rapidly installed and lifted, and the problems that an existing device can only be fixedly connected to a cement base and is inconvenient to disassemble are solved.

The invention discloses a fuel oil pipeline joint. The fuel oil pipeline joint comprises a male joint and a female joint, and further comprises a lock catch for mounting the male joint onto the male joint, wherein the male joint is of a hollow structure which is through from top to bottom; the male joint comprises a male joint connecting tube, a first hose connecting part, an outer retainer ring and an inner blocking ring; the female joint is of a hollow structure which is through from top to bottom; the female joint comprises an opening structure, a female joint connecting tube and a second hose connecting part; lock catch mounting holes which are through from left to right are separately formed in the left side and the right side of the opening structure; buckling slots are separately formed in the front side wall and the rear side wall of the opening structure; buckling slots are separately formed in the left end and the right end of each side wall; the circular opening communicates with the lock catch mounting holes and the buckling slots; the lock catch comprises a U-shaped lock catch body which is horizontally arranged, an upper step part and a lower step part; and the opening of the U-shaped lock catch body is arranged towards the lock catch mounting holes. The invention provides the fuel oil pipeline joint which is simple in structure, is convenient to manufacture and is convenient to dismount.