40results about How to "The connection structure is stable" patented technology

The utility model provides a rotary adsorption type mirror structure which comprises a shell, a lens and an adsorption assembly, the lens and the adsorption assembly are oppositely connected to the shell, the bottom wall of the shell protrudes towards one side to form an installation base, the top wall of the installation base is concavely provided with an installation groove, the side wall of the installation base is provided with an installation opening, and the installation opening is communicated with the installation groove. A guide slope obliquely extends from one end to the other end of the edge of the mounting opening, and a clamping groove is formed in the top end of the guide slope; the lens is buckled and fixed on the mounting groove through a fixing sheet; the adsorption assembly comprises a sealing membrane and a base piece which are fixedly connected, the sealing membrane can cover the outer side of the shell, the base piece is rotationally connected into the installation base, a spring is connected between the base piece and the installation base, and the base piece is provided with a clamping block corresponding to the installation opening in a protruding mode. And the clamping block can move along the guide slope to be buckled and fixed with the clamping groove. The mirror structure is convenient to mount and operate and smooth to use, and has a good damping effect and a firm connecting structure.

The utility model discloses an anti-loosening lithium battery electrode connecting structure, which relates to the technical field of lithium battery parts and comprises a lithium battery body, an electrode column is arranged on the lithium battery body, a contact cover is mounted at the top of the electrode column, a power transmission line is arranged at the top of the contact cover, and the bottom end of the power transmission line penetrates through the contact cover. The outer wall of the contact cover is movably sleeved with a fastening cover, the edge of the bottom of the contact cover is fixedly provided with a baffle ring extending outwards, the bottom of the electrode column is fixedly provided with an assembling base, the inner wall of the fastening cover is connected and installed outside the assembling base in a threaded mode, and the lithium battery body is further provided with a pressing assembly. The structure can be conveniently installed and used and is simple to assemble and convenient to operate, the contact cover is pressed on the electrode column through the pressing rod, the fastening cover is further arranged below the contact cover for double fixation, the pressing rod is fixed and limited by the pressing bolt, and the pressing bolt is further provided with an anti-loosening design, so that the connecting structure is more stable.

The invention relates to a connecting wire harness for a battery pack, which comprises a cable, one end of the cable is connected with an external joint for external equipment, and the other end of the cable is connected with a battery end connector; the battery end connector comprises a shell, a crimping type wiring terminal and an electrode column, the crimping type wiring terminal is arranged in the shell, a crimping cylinder of the crimping type wiring terminal is connected with the cable, the electrode column is arranged in the shell in a penetrating manner, and the tail end of the electrode column is vertically connected with the connecting end of the crimping type wiring terminal; a front end blind hole with a conical bottom face is formed in the front end face of the electrode column, the edge of the front end face of the electrode column extends forwards to form a sector-ring-shaped sector-ring column which is coaxial with the front end blind hole, the axial section of the sector-ring column is an inclined face inclining outwards in the axial direction, and the position, connected with the front end face of the electrode column, of the axial section of the sector-ring column is chamfered. According to the invention, the arc discharge problem can be well inhibited while the connection stability is ensured, and the safety is improved.

The utility model discloses a high -performance silica gel fuel pipe, including large diameter pipe and small pipe, the outer wall of large diameter pipe is provided with first flange joint, the one end of small pipe is integrated with the second flange joint of first flange joint's adaptation, limiting component is used for preventing the dislocation of first flange joint and second flange joint in the connecting process, prevent the component of falling off, for limiting the axial separation of first flange joint and second flange joint, the utility model limiting component guarantees first flange joint and second flange joint accurate butt joint, make sealing surface close fitting, effectively promote the sealing performance, prevent medium leakage, prevent the component of falling off and locking component cooperation, form double protection, significantly enhance the axial tension resistance and the anti -external force impact ability of large diameter pipe and small pipe connection, avoid accidental uncoupling, the locking of locking component to prevent the component of falling off, ensure that the whole connecting structure keeps stable under complex working condition.

The utility model relates to a grooving device for ceramic floor manufacturing. The grooving device comprises a rack, a working platform, a fixing mechanism and a rotary cutting mechanism. The working platform is arranged on the rack, and a through hole is formed in the middle of the working platform; the fixing mechanism is arranged on the working platform and used for temporarily fixing the ceramic floor to be subjected to rotary cutting; the rotary cutting mechanism is arranged on the rack and located over the working platform. The rotary cutting mechanism comprises a telescopic air cylinder, a rotary cutting motor, a rotating shaft, a supporting plate, a rotary cutting barrel and a rotary cutting head. The two ends of the telescopic air cylinder are fixed to the rack and the supporting plate and used for driving the supporting plate to move back and forth in the vertical direction. The rotary-cutting motor is fixed to the upper end face of the supporting plate, the rotating shaft is rotationally assembled on the supporting plate, the upper end of the rotating shaft is in transmission connection with an output shaft of the rotary-cutting motor, the lower end of the rotating shaft is fixed to the rotary-cutting cylinder in a butt joint mode, and the rotary-cutting head is arranged on the side wall of the lower end of the rotary-cutting cylinder. And a cylindrical through groove can be conveniently formed in the ceramic floor.

The utility model discloses a plate polishing device relates to plate polishing technical field, the utility model discloses a work table still includes: adjusting portion, adjusting portion sets up at the top of work table, configuration portion, configuration portion sets up on work table, adjusting portion includes adjusting assembly, adjusting assembly installs at the top of work table, and lifting assembly, lifting assembly installs at the top of work table. The utility model discloses setting adjusting portion, solved because just with plate random placement on polishing belt, simply rely on the movement of polishing belt to drive the plate forward and complete polishing simultaneously, this operation mode lacks the effective positioning and firm fixation of plate, make plate in the polishing process, when receiving slight external force interference or slight change of self -stress, easy to have position deviation, thereby lead to the overall polishing precision to drop, finally cause the problem of adverse effect to finished product quality.

The application relates to a fuel cell end plate outlet connecting structure, which comprises an end plate and a joint pipe, the end plate is provided with an outlet hole for connecting the joint pipe, and the outlet connecting structure further comprises a ring-shaped convex edge and a ring-shaped clamping piece; the ring-shaped convex edge is arranged at one end edge of the outlet hole; one end of the joint pipe is nested and clamped outside the ring-shaped convex edge; and the ring-shaped clamping piece is sleeved outside the joint pipe, so that one end of the joint pipe is clamped between the outer wall of the ring-shaped convex edge and the inner wall of the ring-shaped clamping piece. Compared with the prior art, the application has the advantages of simple installation mode, firm and stable connecting structure and the like.

The utility model relates to the technical field of battery packs, in particular to a battery mounting frame and a vehicle. The battery frame is used for fixing a power battery system of a vehicle, and the power battery bracket comprises a plurality of bracket modules which are stacked in the direction perpendicular to the bottom surface of the vehicle; each support module comprises a first frame, a stand column assembly and a first support capable of bearing an electric box unit, the first support is used for being detachably and fixedly connected with the electric box unit, the first support is fixedly connected with the first frame, the stand column assembly comprises a plurality of supporting columns, and the supporting columns are distributed along the periphery of the first frame and fixedly connected with the first frame; the stand column assembly is used for being detachably and fixedly connected with the first frame of the adjacent lower-layer support module. The battery frame is small in size in the height direction, low in gravity center and high in structural stability.

This utility model discloses an adjustable metal button, belonging to the field of button technology. It includes a base, a lower housing on top of the base, and an upper housing fixedly connected to the top of the lower housing. Vertical grooves are formed on both outer walls of the upper housing, and horizontal grooves are evenly formed on the inner wall of one side of each vertical groove. A bottom groove is formed at the bottom of the horizontal groove, and a movable shaft is rotatably connected to the inner wall of one side of the bottom groove. A deflecting plate is fixedly connected to the movable shaft. A limit block is fixedly connected to the top of the deflecting plate on the side away from the movable shaft. Second springs are fixedly connected to both sides of the bottom of the deflecting plate, and the bottoms of the second springs are fixedly connected to the bottom of the bottom groove. This adjustable metal button, through the vertical grooves, horizontal grooves, and locking posts, allows for convenient adjustment of the button length, thus easily achieving adjustment of the button's tightness and effectively solving the problem of adjusting the tightness of traditional buttons.

The utility model provides a flotation machine scraper shaft connecting structure and a flotation machine, the flotation machine scraper shaft connecting structure comprises a scraper shaft unit and a bearing seat unit, the first end and the second end of the scraper shaft unit are each connected with a first coupler, and the first coupler at the first end of the scraper shaft unit is connected with a universal coupler; and the universal coupling and the first coupling at the second end of the scraper shaft unit are connected with the bearing seat unit through the second coupling. The universal coupling is additionally arranged on one side of the scraper shaft unit between every two bearing seat units, and the fixed coupling is additionally arranged on the other side of the scraper shaft unit between every two bearing seat units, so that the problem that the coaxiality of a plurality of bearing seats cannot be found is effectively solved; meanwhile, due to the design, the scraper shaft between every two bearing seat units can be easily disassembled, and the disassembling and assembling efficiency is greatly improved.

The utility model discloses an electric energy meter shell assembly structure, including bottom shell, left upper cover, right upper cover and slide lock pin. Bottom shell is equipped with the outlet hole, the connecting step and the inlay groove, left upper cover has the elastic connecting piece, the pressed part, the inlay step and the connecting groove, and the right upper cover both sides wall is equipped with the plugboard, the compression part and the lock hole, and slide lock pin is installed in the bottom shell insertion slot side wall. When assembling, left upper cover cooperates through inlay step and inlay groove, connecting groove and connecting step and bottom shell, and right upper cover plugboard inserts into insertion slot, and compression part tightens pressed part, and slide lock pin inserts into lock hole and realizes right upper cover and bottom shell locking. This structure discards screw fastening, realizes quick assembly and disassembly, and each component cooperates and forms stable connection, guarantees shell leakproofness and protective property, reduces maintenance cost, and effectively satisfies the demand of electric power industry to electric energy meter high efficiency, reliable operation.

The utility model discloses a quick connection blowout preventer pipe, which is composed of a connecting pipe and a quick connection sleeve, the quick connection sleeve is composed of a connecting sleeve and a locking mechanism, one end of the connecting pipe is a male buckle end and a first tooth-shaped butt joint boss is arranged on the outer wall of the connecting pipe, the other end of the connecting pipe is a female buckle end and a second tooth-shaped butt joint boss is arranged on the outer wall of the connecting pipe, the connecting sleeve is arranged on the outer side of the connecting pipe, the first annular end plate and the second annular end plate at both ends of the connecting sleeve are respectively embedded and matched with the first tooth-shaped butt joint boss and the second tooth-shaped butt joint boss, the locking mechanism is arranged on the connecting sleeve along the radial direction and can be matched with the locking hole arranged on the connecting pipe, the cable blowout preventer pipe is stably connected and sealed through the plug-in butt joint between the connecting pipes and the locking of the quick connection sleeve, the operation difficulty and the labor intensity are low without the cooperation of complex tools, the quick assembly and disassembly characteristics greatly improve the operation efficiency, and the cable blowout preventer pipe has good emergency performance and can be put into use only by being customized according to the size in various oil and gas field development scenes.

A safe energy-saving bus duct, comprising a shell, a ground row, a phase row, a bus protection piece, a bus connecting piece, a shell connecting structure; the shell comprises a top plate, a side plate, a bus sheath, a bottom buckle plate; the bus protection piece comprises a protection piece bottom plate, a wing plate, a bus side limiting block, a bus top limiting block, a clamping strip, a flap, a protection piece sleeve; the bus protection piece is inserted into the side plate groove, and the bus clamping strip on one side is clamped into the limiting block at the bottom side of the side plate; the bus connecting piece comprises a connecting bus, a connecting piece bottom plate, a connecting piece limiting block, a positioning rod, a connecting piece sleeve, and the bus connecting piece is arranged between two bus protection pieces; the shell connecting structure comprises an upper cover plate, an upper embedded plate, a lower cover plate, a lower embedded plate, a side guard plate, a side guard plate fastening bolt, and two shell bodies are fixedly connected through the shell connecting structure. The whole structure has high strength, the installation method is simple and rapid, the whole structure has high safety performance, the manufacturing process of parts is simple, and the production cost of the whole structure is low.

The utility model relates to a kind of terminal connecting structure and power supply equipment, comprising: terminal seat, terminal seat is equipped with installation site, installation site is used to install terminal;Adapter plate is set on terminal seat, and is electrically connected with terminal;And connecting piece, connecting piece includes main part, and the first connecting part of being set in one end of main part and the second connecting part of being set in the other end of main part;Main part is fixedly connected in the side of adapter plate away from terminal seat, first connecting part is electrically connected with adapter plate, second connecting part is fixed on main plate, and second connecting part is electrically connected with main plate.Terminal connecting structure can increase the strength of connection, ensure the normal conduction of electric connection, when connecting piece is subjected to external force, improve the stability and security of terminal and main plate connection, when external power supply is connected with terminal, terminal is not easy to shake, avoid the force directly transmitted to main plate in the process of plugging with terminal, reduce the force impact of connection position with main plate, improve the security of connection, structure is more stable.

The utility model discloses a water-stop belt convenient to quickly assemble, and relates to the technical field of water-stop belts. The rubber waterstop fixing device comprises a lower mounting steel plate and an upper mounting steel plate, a rubber waterstop is pressed between the lower mounting steel plate and the upper mounting steel plate, and quick-mounting connecting pieces are arranged on the lower mounting steel plate and the upper mounting steel plate, so that the two groups of lower mounting steel plates and upper mounting steel plates are quickly assembled and fixed to compress the rubber waterstop. And a positioning hole is formed in the top surface of the rubber water-stop belt. According to the utility model, the positioning convex shafts on the lower mounting steel plate and the upper mounting steel plate are inserted into the positioning holes in the surface of the rubber water-stop belt, and the rubber water-stop belt is quickly fixed by the quick-mounting connecting piece, so that the rubber water-stop belt is accurately positioned and quickly mounted, the problems that the traditional water-stop belt is complicated to mount and easy to displace are effectively avoided, and the construction efficiency is remarkably improved; the chucks and the notches are arranged in a staggered mode, it is ensured that the lower mounting steel plate and the upper mounting steel plate are tightly attached, a stable connecting structure is formed, and the overall stability is enhanced.

The utility model discloses a pressure storage tank disc ladder two -way adjustable sliding support connecting structure, including upper support and lower support, the upper support and lower support are connected through high -strength screw rod and nut between, one side of lower support is equipped with U -shaped groove, the upper support side edge is welded with the transmission board, the transmission board is inserted in the U -shaped groove and has realized the height adjustment change between the upper support and lower support, can effectively adapt to the two -way uneven settlement that pressure storage tank body and disc ladder between because of the foundation difference produce, relieve the stress of connecting part, improve the stability and security of connecting structure, guarantee disc ladder normal use and personnel safety etc. technical features.

This invention discloses a collaborative load-bearing device for column-free trusses and clamps at the external corners of glass curtain walls, belonging to the field of glass curtain wall support technology. This invention utilizes a quick-lock assembly operated with disassembly and assembly tools to rapidly lock adjacent glass curtain wall corners, reducing operational difficulty. The screw, deeply embedded in the threaded cylinder, can pierce chemical agents and lock teeth, firmly bonding the screw and threaded cylinder to form a stable connection structure, providing a solid guarantee for the stability of the glass curtain wall. Furthermore, the ratchet and ratchet mechanism maintains unidirectional rotation of the screw, effectively preventing loosening due to external forces during use. This fundamentally avoids the problem of loose screws affecting the overall stability of the glass curtain wall, achieving an irreversible fixing effect and further enhancing the safety and reliability of the glass curtain wall structure. After the screw and threaded cylinder are installed in place, the central rod protrudes from the opening, allowing for quick confirmation of the glass curtain wall's installation, making installation more convenient and efficient.

This application relates to the field of vehicle body technology and provides a rear vehicle body structure and a vehicle. The rear vehicle body structure of this application includes a buffer portion mounted on a side drainage channel and a support assembly mounted on a tailgate window frame. The support assembly includes a support corner mounted on the tailgate window frame and a sealing strip corner mounted on the support corner. The sealing strip corner is installed on the side of the support corner facing forward of the vehicle. When the tailgate assembly is closed, the buffer portion can abut against the sealing strip corner. The rear vehicle body structure of this application, through the abutment between the buffer portion on the side drainage channel and the sealing strip corner on the tailgate window frame, not only provides buffer protection for the tailgate assembly during closing but also improves the stability and sealing performance of the tailgate assembly after closing.

The utility model relates to the technical field of automobile connector, especially a kind of automobile wire harness connector, including waterproof inner core, waterproof shell of being set in the waterproof inner core outside, the front side of the waterproof shell is formed with the front wire hole for front wire harness from front to back into waterproof inner core, the rear side of the waterproof shell is formed with the rear wire hole for rear wire harness from rear to front into waterproof inner core, the waterproof inner core is placed into the terminal for the electrical connection of front wire harness and rear wire harness, the waterproof inner core is formed by upper half body and lower half body upper and lower splicing, the splicing position of the upper half body and lower half body is provided with the inner waterproof washer of surrounding terminal, waterproof effect is better.

The utility model relates to zeolite rotating drum technical field provides the zeolite rotating drum connecting structure of safe operation is guaranteed, including base, the middle part of base is equipped with the mounting shaft, the middle part rotatory connection of mounting shaft has lower mounting disc, and mounting shaft is connected with mounting frame, and mounting frame is connected with inner support board, and the top end sliding connection of inner support board has upper mounting disc, and a plurality of zeolite modules are equipped between upper mounting disc and lower mounting disc, and the both ends of zeolite module are fixedly connected with upper mounting disc and lower mounting disc respectively, and the both sides of zeolite module are equipped with zeolite baffle, and form the heat dissipation chamber between two adjacent zeolite modules. The zeolite module of utility model setting, make upper mounting disc and lower mounting disc fixed more firm, the setting of zeolite baffle, make zeolite module can bear greater pressure, and then reduce the situation that the zeolite in zeolite module pours out, the setting of heat dissipation chamber, make zeolite pour out only enter heat dissipation chamber, so as to facilitate subsequent cleaning.

The storage rack convenient to manufacture comprises a bottom plate and a surrounding plate, the surrounding plate is installed on the top of the bottom plate, a lower folding edge is arranged on the outer side of the bottom of the surrounding plate, a wrapping edge wrapping the lower folding edge is arranged on the outer side of the bottom plate, a groove for positioning and installing the bottom of the surrounding plate is formed in the outer side of the top of the bottom plate, and the bottom of the bottom plate is provided with a groove. The storage rack is a fan-shaped storage rack or a square storage rack. The connecting structure is simple in structure and easy to manufacture, in the production process, the bottom plate is firstly positioned and placed on the surrounding plate, then the covered edge and the lower folded edge are formed at the same time through a forming machine, the lower folded edge is wrapped by the covered edge, assembly of the bottom plate and the surrounding plate is completed, the connecting structure is stable, quality is easy to guarantee, welding is not needed, time consumed in the production process is short, polishing treatment is not needed, and production efficiency is improved. The production cost is reduced and batch production is facilitated.

The utility model discloses a kind of washing equipment drainpipe's suspender and washing equipment, comprising: hook, it is installed on drainpipe;Hanging mouth, it is set on the cabinet of washing equipment;The hook has hook head, the hanging mouth has with the installation mouth portion of the hook head matched arrangement, and with the installation mouth portion intercommunication setting is engaged mouth portion;When the hook is in suspended state, the hook head is engaged in the inside of the engaged mouth portion. Hook is installed on drainpipe, hanging mouth is directly set on cabinet, reduce the number of independent components, reduce the cost of parts production manufacturing;At the same time, assembly step reduces, and assembly cost is reduced. By being designed into installation mouth portion and engaged mouth portion matched with hook head for hanging mouth, when the hook is in suspended state, the hook head is engaged in the inside of engaged mouth portion, improve the convenience and efficiency of operation;Form stable connection structure, can effectively prevent hook accidental escape, ensure the reliability of drainpipe suspension during the operation of washing equipment.

This utility model relates to the field of casual shoe technology and discloses a highly wear-resistant casual shoe, including a main shoe body. A main shoe sole is fixed to the bottom surface of the main shoe body. The main shoe sole includes an EVA outsole pad, and a frame pad is connected to the top surface of the EVA outsole pad around its perimeter. A bottom groove is formed inside the top surface of the EVA outsole pad, and a midsole pad is adhered to the top surface of the bottom groove. The bottom of this utility model consists of an EVA outsole pad and a TPU anti-slip pad layer. The EVA outsole pad provides rebound and shock absorption, improving wearing comfort, while the TPU material of the TPU anti-slip pad layer itself provides high anti-slip and wear resistance. Its friction and force mainly act on the protruding structures such as the anti-slip heel and anti-slip stripes. When the anti-slip stripes are under force, each group of anti-slip stripes is connected by longitudinal stripes to form a structural rib mesh, reducing the deformation caused by force, thereby ensuring the stability of the bottom anti-slip and wear-resistant structure. At the same time, the use of TPU material ensures high wear resistance.

The utility model provides a kind of ball pin dismounting tool, belong to mechanical dismounting tool technical field, it includes screw rod, cross bar, calliper, adjusting nut and press-down platform, cross bar is equipped with calliper and slidingly connected, adjusting nut is equipped with screw rod and is fixed with cross bar, press-down platform is equipped with screw rod bottom end.Working, calliper is connected axle bridge knuckle, rotates screw rod and makes press-down platform press down ball pin, calliper is on top axle bridge knuckle, realize the separation of both.The tool is convenient and labor-saving, can be stable force, reduce component damage, adapt to a variety of specifications ball pin, structure stable and reliable, prolong service life.

The utility model discloses ecological paving stone of imitating stone surface relates to paving stone technical field. Including the pavement base plate, the bottom surface is used to lay on the ground surface base soil, a plurality of processing filling body, even fixed in the pavement base plate top, and the drainage structure is reserved between two adjacent processing filling bodies, is provided with imitating stone convex between two adjacent drainage structures, and there is height difference between imitating stone convex and drainage structure, and imitating stone convex is fixed in the top of processing filling body, along with rainwater contact imitating stone convex's surface, and rainwater flows along the slope of imitating stone convex to adjacent drainage structure, and through the water gap of drainage structure rapid penetration to the base soil below the pavement base plate, the utility model discloses the slope design of imitating stone convex and the synergistic effect of drainage structure, effectively guide rainwater along the slope rapid convergence to the passageway gap, and then through the discharge port of gradually increasing aperture smooth infiltration base soil, has improved the drainage efficiency of paving stone significantly.

This utility model relates to the field of handcart technology, specifically to a folding handcart that is easy to store, including a push plate and side plates. The push plate has side openings on both horizontal sides, and side sliding grooves are embedded on both sides of the side openings. A side plate is provided inside the side openings, and a slider is embedded inside the side sliding grooves. A rotating shaft is installed inside the slider, and a side plate is fitted onto the middle of the outer wall of the rotating shaft. Clamping springs are fitted onto both sides of the outer wall of the rotating shaft to pull the side plate to rotate. A side groove is provided at one horizontal end of the push plate, and a rotating rod is installed on the middle of both sides of the side groove. A push handle plate is fitted onto the outer wall of the rotating rod. This utility model solves the problem that existing devices have a small surface support area during transportation, making it easy for items to fall off the sides. Furthermore, most handles use a fixed structure, resulting in a large volume and making them inconvenient to store upright.

The application discloses a gradient composite air filter paper and a preparation method thereof. A gradient composite structure composed of a support skeleton layer, a transition bonding layer and a fine fiber filter layer is constructed in the thickness direction of the filter paper, so that the material has good structural coordination while maintaining high filtering efficiency. Through the synergistic effect of low-melting-point binding fibers and flexible bonding agents, a stable and flexible connection structure is formed between the fibers and the interlayer interface, so that each layer can deform cooperatively under stress, avoiding stress concentration. The gradient structure forms a reasonable rigid-flexible distribution in the thickness direction of the filter paper, and can realize step-by-step transition of strain under subsequent pressure and bending conditions, thereby reducing the risk of local structural instability and improving the overall structural consistency and use stability.

The utility model relates to a sample collecting device based on aquatic product safety, which comprises a pre-filtering assembly, a first sampling assembly, a second sampling assembly, a second sampling assembly and a third sampling assembly, and is characterized in that the pre-filtering assembly comprises a first bottle body and a first filter screen; the transfer bottle comprises a second bottle body, the second bottle body is provided with a second inlet and a second outlet, and the outer wall of the first bottle body can abut against the upper end of the second inlet; the filtering assembly comprises a third bottle body and a filtering part, the third bottle body comprises an upper bottle body and a lower bottle body, the upper bottle body is provided with a third inlet, the lower bottle body is provided with a third outlet, and the filtering part is arranged on the lower bottle body; the collecting bottle comprises a fourth bottle body with a fourth inlet; the second outlet is in threaded connection with the third inlet; the third outlet is in threaded connection with the fourth inlet; and the vacuum generator is connected with the fourth bottle body. The first bottle body and the third bottle body do not need to be supported and lifted by a bracket, and the sample collection device is simple in structure. The transfer bottle, the third bottle body and the collecting bottle are connected through threads, and every two connected bottle bodies are not prone to being disconnected.

The present application relates to the field of bottle blowing machine, especially to a high-precision stable variable distance mechanism in a bottle blowing machine, comprising: a support, a guide blank groove is arranged on the support; a ring-shaped guide rail is arranged on the support, an initial area, a variable distance maintaining area, a bottle pushing area and a material taking area are arranged on the ring-shaped guide rail; a hinge plate assembly is composed of hinge plates which are sequentially hinged together, second and third circular guide members are arranged on the hinge plates, first and second circular guide members are rollingly clamped in the ring-shaped guide rail; a plurality of bottle pushing assemblies are fixed on corresponding hinge plates, bottle pushing assemblies in the initial area are in a non-bottle pushing state, bottle pushing assemblies in the variable distance maintaining area are changed to a bottle pushing state, bottle pushing assemblies in the bottle pushing area are in a bottle pushing state, bottle pushing assemblies in the material taking area cooperate with a material taking mechanism to take out bottle blanks; a sprocket drives the hinge plate assembly to move along the ring-shaped guide rail. The present application is not easy to be stretched during operation, thereby having high stability and high positioning precision.

This utility model discloses a novel automotive repair pull hammer head, comprising: an annular connecting block and a hand handle, the hand handle comprising a connecting part and a hand handle, the connecting part being U-shaped, the connecting part having a threaded connecting hole through it, the annular connecting block being connected to the connecting part by bolts, the annular connecting block having a connecting hole on its side and an implementation tool being connected to the connecting hole, this utility model having a stable connection and being safe and reliable.