713 results about "First insertion" patented technology

The utility model relates to the field of folding fishing platforms, in particular to an integrated foldable storage fishing platform and fishing platform, which comprises a split type locking sleeve fixedly mounted at the top corner of a platform plate and provided with an insertion cavity for insertion of supporting legs, and the insertion cavity has an insertion direction extending from the top of the split type locking sleeve to the bottom of the split type locking sleeve. The support leg is provided with a first insertion position and a second insertion position along the insertion direction; the rotating piece is rotatably mounted in the split type locking sleeve and provided with a rotating shaft perpendicular to the insertion direction, and a penetrating cavity allowing the supporting foot to penetrate through is formed in the rotating piece; the effect of rotating the supporting legs to the back side of the table plate under the condition that the supporting legs are not completely separated is achieved through the split type locking sleeves internally provided with the rotating pieces, and the technical problems that in the prior art, a fishing table is not convenient enough to store, and the supporting legs are prone to being lost are solved.

The invention relates to the technical field of mold equipment, in particular to an improved mold structure which comprises a bottom plate, a base plate, a movable mold plate, a fixed mold plate and a runner plate, a push plate is connected to the bottom plate, a fixed plate is mounted on the bottom plate, the fixed plate is arranged between the push plate and the bottom plate, a demolding mechanism is mounted on the push plate and comprises a push cover, and the push cover is mounted on the push plate. A first insertion hole is formed in the push cover, an insertion piece is detachably installed on the fixing plate, the insertion piece comprises a connecting plate, a fixing rod is installed on the connecting plate, a second insertion hole is formed in the fixing plate, and the fixing rod is inserted into the first insertion hole and the second insertion hole to fix the push plate to the fixing plate; a top stick column is detachably installed in the push cover, an annular groove is formed in the top stick column, and the fixing rod is clamped into the annular groove of the top stick column to fix the top stick column. And mold opening and closing mechanisms are mounted on the movable mold plate, the fixed mold plate and the runner plate. The mold has the effect of improving the convenience of quick mold replacement and the mistake proofing of the sequence of mold opening and closing steps of the mold.

The invention provides an adjustable oral soft tissue traction fixing device for an apical surgery. The adjustable oral soft tissue traction fixing device comprises a dentition fixing component, a lower jaw fixing component and a soft tissue traction fixing component, the dentition fixing component is used for being fixed in the oral cavity of a subject and located at the upper end of the dentition where the operation teeth are located. The dentition fixing component comprises a buckle plate and an insertion rod; a groove is formed in the lower side of the buckle plate, and the buckle plate is buckled on the dentition through the groove; the upper end of the insertion rod is fixed to the first side of the buckle plate. The lower jaw fixing component comprises a bottom plate and a side plate; the bottom plate and the side plate are connected to form an L shape; the lower jaw fixing component is used for being fixed outside the oral cavity of a subject; first insertion holes are formed in the side plates in the vertical direction; the lower part of the inserting rod is inserted and fixed in the first inserting hole; the first end of the soft tissue traction fixing component can be adjustably fixed to the lower jaw fixing component, and the second end of the soft tissue traction fixing component is used for extending into the oral cavity of a subject so as to achieve traction and fixing of gingival soft tissue flaps.

The marine fireproof watertight door with the cooling function comprises a door plate, the door plate is rotationally connected with a closed frame, a plurality of inserting grooves are formed in the right side of the closed frame, first reinforcing mechanisms and second reinforcing mechanisms are installed on the front side of the door plate, and the second reinforcing mechanisms are located between the first reinforcing mechanisms. A controller is fixedly mounted at the bottom of the door plate, an auxiliary threaded hole is formed in the front end of the outer side of the second reinforcing mechanism, a fixing mechanism is arranged at the front end of the outer side of the second reinforcing mechanism, the first reinforcing mechanism comprises an automatic telescopic rod, a first inserting block and a first mounting shell, and the automatic telescopic rod is fixedly mounted on the first mounting shell. The output end of the automatic telescopic rod is fixedly connected with a first insertion block. The marine fireproof watertight door with the cooling function has the cooling function and is provided with multiple reinforcing mechanisms, so that the leakproofness of the door is improved, the handle is conveniently locked, and the fixing screws are conveniently placed.

The application provides a terminal welding clamp and a fixing method of terminals to be welded on a substrate. The terminal welding clamp comprises a bottom plate provided with a bottom plate fixing column; a fixing frame provided with a rectangular cavity, a fixing frame opening and suitable for fixing a DBC; the fixing frame is further provided with a fixing frame fixing hole; a support provided with a first opening penetrating through and capable of accommodating a terminal to be vertically inserted from above and to pass through; a first support table is arranged above the outer periphery of the first opening, and first grooves are arranged on both sides of the inner wall and capable of accommodating the upper end of the terminal to be inserted and clamped; a first insertion hole penetrating through is arranged on the side edge of the support and capable of accommodating the terminal to be vertically inserted from above and to pass through; the support is further provided with a support fixing hole; a fixing block is provided with an opening, and the top end of the terminal can be inserted and clamped in the opening; and the fixing block is further provided with a fixing block fixing column. When the support and the bottom plate are assembled, the terminal does not need to be assembled with the support in advance, the working efficiency is high, and the bottom plate and the support with products do not need to be inclined, and there is no risk of terminal falling.

The utility model provides an assembly type transition section of a prestress lattice type tower. The assembly type transition section comprises a main barrel, lattice type corner columns and first connecting structures. The plurality of lattice type corner columns are mounted on the main cylinder body through first connecting structures; the first connecting structure comprises a cross brace, an inclined brace, a first inserting plate and a second inserting plate; one ends of the transverse support and the inclined support are fixedly connected with the main cylinder body, and the other ends of the transverse support and the inclined support are provided with slots; one end of the first inserting plate is fixedly inserted into the inserting groove in the transverse support, the second inserting plate is fixedly inserted into the inserting groove in the inclined support, and the other end of the first inserting plate and the other end of the second inserting plate are detachably connected with the lattice type corner column. Through the arrangement of the transverse supports and the inclined supports, the main cylinder body can be installed on the lattice type corner column, and through the disassembly and assembly of the first insertion plate and the second insertion plate, the transportation of the transition section can be facilitated.

The utility model relates to a connector terminal, which comprises a connecting section, a first plugging section and a second plugging section, and is characterized in that the connecting section is used for being matched with an insulator in a limiting manner; the first inserting section is connected to one end of the connecting section, the second inserting section is connected to the other end of the connecting section, the first inserting section comprises a plurality of clamping arms arranged in the circumferential direction, and a first inserting hole is defined by the clamping arms; the second insertion section is provided with a second insertion hole, and a partial area of the hole wall of the second insertion hole protrudes towards the radial inner side so as to be used for tightly abutting against the insertion pin. In the connector terminal, the first insertion section is provided with the first insertion hole, the second insertion section is provided with the second insertion hole, and the first insertion hole and the second insertion hole can be in insertion fit with the insertion pin, so that the connector terminal can realize bidirectional insertion fit. The first plug-in section and the second plug-in section are directly connected with the connecting section, the structure is simple, the connecting section is in limiting fit with the insulator, and the fixing mode is simple.

The utility model relates to a multi-specification injection medicine storage box which comprises a bottom box, a storage cavity is formed in the upper portion of the bottom box, the bottom box is rotationally connected with a top cover capable of covering the storage cavity, the bottom box comprises a first box body and a second box body, and a first containing groove is formed in the upper portion of the first box body in the length direction of the bottom box. The second box body is provided with a first inserting part which can be inserted into the first containing groove and is in sliding fit with the first containing groove, a second containing groove is formed in the upper portion of the second box body, and a plurality of partition plates capable of partitioning the storage cavity are arranged in the storage cavity. The injection storage box has the advantages that the first box body and the second box body are in sliding fit, the capacity of the whole storage box is adjusted, a user can freely expand or contract the storage space according to the number and specification of injections needing to be stored actually, and therefore limited space resources can be better utilized, and the storage space is saved. And a plurality of partition plates capable of partitioning the storage cavity are arranged in the storage cavity, so that the space utilization flexibility of the storage cavity is improved.

The utility model discloses a product pouring gate removing tool which comprises a tool body, two product bodies are placed on the top of the tool body, the two product bodies are jointly and fixedly connected with a pouring gate connecting piece, the bottom of each product body is fixedly connected with a first protruding block, a second protruding block and a third protruding block, and the first protruding block, the second protruding block and the third protruding block are arranged on the tool body. Two pairs of first inserting grooves, second inserting grooves and third inserting grooves are formed in the top of the tool body, a first stand column, a second stand column and a third stand column are fixedly connected to the bottom of each product body, and two pairs of first limiting grooves, second limiting grooves and third limiting grooves are formed in the top of the tool body. Products can be fixed at a time through the cooperation of the protruding blocks and the inserting grooves, the products can be fixed again through the cooperation of the stand columns and the limiting grooves, manual fixing of the products is replaced, limiting of the products is achieved, the fixing positions of the products are consistent every time, and the follow-up cutting effect is good.

This invention relates to a circumferentially mating plug and socket, comprising a plug body and a socket body. The plug body includes a first insulating base, and its top is coaxially arranged with a first protective ring, a first insertion ring, a second insulating ring, a second insertion ring, a third insulating ring, a third insertion ring, a fourth insulating ring, and a fourth insertion element, all of which are conductive to the plug wires. The socket body includes a second insulating base, and its top is coaxially arranged with a second protective ring, a first insertion ring, a fifth insulating ring, a second insertion ring, a sixth insulating ring, a third insertion ring, a seventh insulating ring, and a fourth insertion ring, all of which are conductive to the socket wires. During mating, each insulating ring of the plug inserts into its corresponding positioning ring, and the insertion ring inserts into its corresponding insertion ring, achieving precise circumferential mating and conductive connection. This circumferentially mating plug and socket, by employing a concentric circle structure, enables mating of the plug and socket in any direction, greatly reducing the difficulty of plug-socket connection and facilitating automated mating of the plug and socket.

The utility model discloses a locking mechanism for a meat grinder, which comprises a machine head, a machine body, a locking component and a handle, and the machine head is provided with a first inserting part; the machine body is provided with a second inserting part, and the machine head is installed on the machine body through inserting connection of the first inserting part and the second inserting part. One of the first inserting part and the second inserting part is an inserting block, and the other one of the first inserting part and the second inserting part is an inserting groove; the locking assembly comprises a first locking piece arranged on the machine head and a second locking piece arranged on the machine body. When the handle is pulled, the first locking piece and the second locking piece can be driven to be mutually locked or unlocked. Therefore, the first locking piece and the second locking piece can be driven to be mutually locked or unlocked by pulling the handle, the operation is simple and convenient, the stable connection between the machine head and the machine body is ensured, the problem that the machine head and the machine body are loosened or separated during working is avoided, the use safety and stability of the meat grinder are improved, the accident risk is reduced, and the safety of the meat grinder is improved. And the use safety of the user is ensured.

The utility model relates to the technical field of facial tissue bowls, in particular to intermittent facial tissue bowl conveying equipment which comprises a supporting structure, a limiting structure and a spacing structure, the lower end of a connecting plate in the supporting structure is connected with a first base through a bolt, and the inner side of the connecting plate is connected with a first rotating shaft through a bolt; one side of a rotating rod is connected with the rear end of a connecting groove through a bolt, the lower end of a facial tissue bowl can be limited through a limiting strip connected to the outer side of a conveying belt, the rotating rod can be inserted into an inserting opening formed in the upper end of a first supporting column in a hollow mode, and therefore the rotating rod can be rotationally connected with the supporting column; and a threaded rod rotationally connected with the interior of a connecting groove can be connected with the lower end of a connecting ring, the connecting ring can rotate in the threaded rod through a rotating block, and the two sides of the facial tissue bowl can be limited through a limiting rope.

The utility model discloses an aluminum plate processing operation table, which comprises a table plate, a first clamping part and a second clamping part, the upper part of the table plate is provided with a chute, the chute is internally provided with a plurality of equidistant first insertion holes, and the first insertion holes are internally provided with inclined planes convenient for inclined inward locking and insertion grooves arranged opposite to one side of the chute. The first clamping part is matched with the first inserting hole formed in the sliding groove through the first locking part arranged in the first clamping part, the locking rod is lifted through the ejector block in the using process, meanwhile, the second clamping part is provided with the second locking part, and through the arrangement of the inserting head and the notch of the second locking part, the locking rod can be conveniently locked. The rod body of the second clamping part is fixed, and when the plug needs to be pulled out, the movable part is contracted by pressing the button, so that the plug is pulled out from the second jack, and the operation is convenient and the clamping is relatively convenient.

This invention relates to the field of communication technology and discloses a chassis mounting assembly and a communication device. The chassis mounting assembly includes a mounting arm and a hook. The hook includes a flat main body and a first insertion part. The main body includes a first surface and a second surface disposed opposite to each other. The first surface is used to fit against the side wall of the chassis. The first insertion part is connected to the bottom of the main body and extends in a direction away from the top of the main body. One end of the first insertion part away from the top of the main body is located on the side of the second surface away from the first surface. The mounting arm includes a mounting arm body and a first insertion slot. The mounting arm body is used to be fixed to the rear end of the frame. The first insertion slot is fixed to the bottom of the mounting arm body and is located on the side of the mounting arm body facing the hook. The first insertion part can be inserted into the first insertion slot and slidably connected with the first insertion slot. This chassis mounting assembly and communication device improves the problem of the rear of the chassis drooping after being mounted on the rack.

The utility model discloses a kind of steel mesh frame insert piece type quick fixing structure, it is related to transfer printing technical field, including steel mesh, the edge of steel mesh is inserted and inserted piece is engaged, steel mesh, insert piece are connected with frame strip by first insertion slot, second insertion slot common engagement, the adjacent end of the frame strip is connected with corner connecting piece by guide slot, sliding slot, convex edge, convex handle, convex strip, baffle, third insertion slot common engagement. The structure when fixing steel mesh, full course does not need bolt and other auxiliary parts, realize the quick assembly of steel mesh and frame for transfer printing, greatly shorten assembly time, the flatness of steel mesh and frame overall rigidity in long-term use are guaranteed by multiple engagement structure, effectively avoid the transfer printing precision deviation caused by steel mesh displacement, frame deformation, meet the efficient, low cost, high stability production demand of transfer printing.

A storage box having a plate-shaped wall structure and capable of being repeatedly disassembled and assembled includes two first plate-shaped walls, two second plate-shaped walls, and two third plate-shaped walls. When the storage box is in an assembled state, the two first plate-shaped walls and the two second plate-shaped walls are located between the two third plate-shaped walls, the two first plate-shaped walls are located between the two second plate-shaped walls, first insertion heads of the first plate-shaped walls are inserted into first insertion grooves of the second plate-shaped walls, second insertion heads of the first plate-shaped walls are inserted into second insertion grooves of the third plate-shaped walls, third insertion heads of the second plate-shaped walls are inserted into third insertion grooves of the third plate-shaped walls, and the third plate-shaped walls are connected to the first plate-shaped walls or the second plate-shaped walls via unlockable first locking structures.

The utility model relates to the technical field of soil quality collection and detection, in particular to a soil quality collection and detection device which comprises a collection and detection machine, the collection and detection machine comprises a base, universal wheels are fixedly connected to the four corners of the bottom face of the base, and a storage box is fixedly connected to the position, close to the side, of the top face of the base. A plurality of first inserting grooves are formed in the side wall of the storage box at equal intervals, drawers are slidably inserted into the multiple inserting grooves, second handles are fixedly connected to the outer sides of the multiple drawers, push rods are fixedly connected to the side walls of the drawers, and a sampling mechanism is fixedly connected to the side wall, opposite to the push rods, of the storage box. The position, close to the other side, of the top face of the base is fixedly connected with a detection unit. According to the soil sampling device, the sampling mechanism is arranged on the device, so that sample soil can be automatically collected into the drill rod or released, the soil collecting efficiency is improved, and the labor intensity of workers is reduced.

The utility model discloses a wiring assembly and power distribution cabinet, this wiring assembly includes: insulating seat, the electric row is connected in insulating seat, the number of conductive ring is provided with a plurality of, a plurality of conductive ring all cover the outside of electric row, and the outside surface of conductive ring is equipped with installation slot, and installation slot is set up in the through from top to bottom, and the swing arm that rotates along the top to bottom direction is equipped with in installation slot, and swing arm divides installation slot into first insertion area and second insertion area, and the upper end of swing arm is equipped with first convex part in the position of first insertion area, and the lower end of swing arm is equipped with second convex part in the position of second insertion area, and the rotation axis of swing arm is located between first convex part and second convex part. The utility model discloses the conductive ring only has one kind of specification, and the conductive ring under this specification not only can satisfy the locking of power grid input end, but also can satisfy the locking of electric row output end, and can maintain the structural integrity of input end and output end, thereby reaches better power transmission effect.

The application discloses a tool and an automatic wire inserting device, the tool is used for assembling a coil, the coil comprises a first coil body and at least one second wire, the first coil body comprises a plurality of first wires, and at least part of the first wires are provided with wire insertion slots, the second wire is inserted into the corresponding wire insertion slot, the tool comprises a wire insertion seat and a moving seat, the wire insertion seat is provided with a plurality of first insertion slots, the plurality of first insertion slots are sequentially distributed along the circumference of the coil, and the first insertion slot is used for inserting the first wire to form the first coil body; the moving seat is connected to the wire insertion seat and is provided with a second insertion slot, and the moving seat can be moved relative to the wire insertion seat to switch between a first position and a second position; wherein the moving seat is configured to: when the moving seat is located at the first position, at least part of the second insertion slot is located outside the first coil body, so that the second wire is inserted into the second insertion slot; when the moving seat is located at the second position, the second wire carried by the second insertion slot is inserted into the wire insertion slot. The tool can improve the wire insertion efficiency and stability.

The utility model discloses a quick assembly type wallboard structure which comprises a board body, a first inserting part and a second inserting part, wherein the first inserting part and the second inserting part are arranged on the two sides of the board body respectively and used for assembly. The first inserting part and the second inserting part respectively comprise a first convex plate and a second convex plate which extend from the two sides of the plate body, and a first inserting groove and a second inserting groove which are respectively formed in the first convex plate and the second convex plate; a plurality of sets of arc-shaped protrusions are evenly distributed on the side wall of one side of the first protruding plate, and a plurality of sets of arc-shaped clamping grooves matched with the arc-shaped protrusions are evenly distributed in a plate body on the corresponding side in the second inserting groove. A plurality of sets of connecting rods are arranged on the side wall of one side of the second protruding plate, and a plurality of sets of pin grooves matched with the connecting rods are formed in the corresponding positions of the plate body on the corresponding side in the first inserting groove. The wallboard structure can be quickly assembled, meanwhile, the up-and-down levelness and the left-and-right flatness between the adjacent wallboards can be conveniently observed and judged during assembly, and it is guaranteed that the multiple sets of wallboards have high position uniformity and installation efficiency during installation.

The utility model discloses a sunshade easy to assemble and store, which comprises a sunshade body and a sunshade base, an inserting structure is arranged at the bottom of the sunshade body, and the inserting structure is detachably connected with the sunshade base; wherein the sunshade base is composed of a first bayonet socket and a second bayonet socket which are detachably connected, first extension plates are fixedly connected to the two sides of the first bayonet socket, and the first extension plates and the second extension plates are crossed by 90 degrees to form a stable cross structure, so that the supporting area and the stability of the base are increased; the heights of the first supporting legs and the second supporting legs can be adjusted through screws to adapt to fluctuation of different grounds, it is ensured that the sunshade base is always kept horizontal, the vertical state of the sunshade body is ensured, and the situation that the sunshade body inclines due to uneven grounds is avoided; the assembly process is simple and visual by inserting and matching the guide column with the through hole, inserting and matching the inserting column with the through hole and screw-thread matching between the guide column and the nut.

A connecting device includes a compressively deformable heat-conductive pad, a connector assembly, and a protection structure. The connector assembly includes a shield. The shield defines a first insertion channel and has a bottom wall and a pressing structure. The first insertion channel has a first channel opening for insertion of a pluggable module. The bottom wall forms a bottom aperture for the heat-conductive pad to pass into the first insertion channel. The protection structure includes a first elastic protection member disposed on the bottom wall between the first channel opening and the bottom aperture. During insertion of the pluggable module into the first insertion channel, the pluggable module is supported by the first elastic protection member to maintain a gap between a heat-generating surface of the pluggable module and the heat-conductive pad. Then, a back surface of the pluggable module is pressed by the pressing structure to elastically deform the first elastic protection member and to cause the heat-generating surface to abut against the heat-conductive pad. Thus, the surface of the heat-conductive pad can abut against the heat-generating surface of the pluggable module without a gap, thereby improving heat dissipation.

The utility model relates to the technical field of medical polymer splints, and discloses a medical polymer splint convenient to disassemble and clean, which comprises a splint main body, side ear plates and bandages, through hole grooves are formed in the side ear plates, limiting blocks are mounted on two sides of a connecting plate, and a sealing block is mounted at the top end of the connecting plate. The through hole grooves are formed in the side lug plates, then the first inserting columns are inserted from the upper portion to reach the interiors of the through hole grooves, then the connecting plates are connected from the lower portion, and during connection, the connecting plates are rotated to enable the threaded columns to reach the interiors of the threaded grooves to form threaded locking; the first hook-and-loop fastener is bonded to the second hook-and-loop fastener at the corresponding position after the penetrating part is folded downwards, the bonding connection between the first hook-and-loop fastener and the second hook-and-loop fastener is loosened during disassembly, then the connecting plate is reversely rotated to enable the threaded column to leave the interior of the threaded groove, and then the first penetrating column and the connecting plate are taken out; in this way, the overall dismounting and cleaning convenience is well improved in the working process.

The present application relates to a strengthening structure for a flexible support circular tube, belonging to the technical field of flexible photovoltaic supports. It includes a long circular tube and a short circular tube, and a strengthening member is arranged between the long circular tube and the short circular tube. The strengthening member includes a connecting portion and a mounting portion. The connecting portion includes a lower housing, and a plurality of limiting blocks are arranged inside the lower housing. The plurality of limiting blocks penetrate through the lower housing and are inserted and connected with the short circular tube. A sliding component and a rotating component are arranged inside the lower housing. The mounting portion includes an upper housing, and a plurality of insertion rods are arranged inside the upper housing. A spring rod and a roller are arranged at the end of the insertion rod. A first insertion hole and a second insertion hole are formed on the inner wall of the upper housing. When the upper housing is installed with the long circular tube, the roller moves from the first insertion hole to the second insertion hole and penetrates through the second insertion hole to be limited and fixed with the slot on the long circular tube. The present application has the effect of being able to solve the problems in the prior art that the strength of the flattened part of the flexible support circular tube is insufficient, it is easy to deform under the action of strong pulling, or the flattened part breaks.

The utility model discloses a stone wallboard with engraving groove belongs to stone wallboard field, including first wallboard and second wallboard, first wallboard and second wallboard opposite one end are fixedly connected with two first mounting block and second mounting block respectively, the top of first mounting block is seted up with the clamping slot, the one end fixedly connected with the clamping block of second mounting block is close to first mounting block, the top of first mounting block is seted up with first cooperation slot, the top of first cooperation slot is seted up with first insertion slot, the bottom fixedly connected with first cooperation board of second mounting block. This stone wallboard with engraving groove, through setting clamping slot, clamping block and first insertion block, this stone wallboard in the installation process, through the mortise and tenon joint of first wallboard and second wallboard, can improve the firmness of first wallboard and second wallboard connection, and the mortise and tenon structure can improve the stress of first wallboard and second wallboard multidirectional, guarantee the strength of this stone wallboard whole.

This utility model discloses a fan mounting base that is easy to assemble and disassemble, including a suspended base. The suspended base includes a suspended cylinder, a bracket, a connecting base, and mounting holes. There are three connecting bases, each welded to the lower end of the bracket and arranged symmetrically in a ring. The mounting holes are also arranged symmetrically in a ring on the connecting bases. The connecting base is fixed to the upper end of the suspended cylinder by bolts and mounting holes. An alignment assembly is also included, comprising a fixing plate, a first insertion hole, a second insertion hole, and a connector. The fixing plate is welded to the upper side of the suspended cylinder. The first and second insertion holes are located on the fixing plate. One end of the connector is inserted into two adjacent mounting holes, and the other end is inserted into the first and second insertion holes respectively. This utility model, through its alignment assembly, allows for quick alignment between the mounting holes on the connecting base and the screws on the suspended cylinder, improving installation efficiency.

The modular hydraulic pipe jacking system comprises a base, a connecting groove is formed in the rear side of the base, first inserting grooves are formed in the two sides of the connecting groove, an assembling plate is arranged on the upper side of the base, connecting blocks are arranged on the lower side of the assembling plate, and the connecting blocks are connected with the connecting groove and the first inserting grooves correspondingly; the connecting groove is connected with a connecting piece, a guide rail is arranged on the base, and the guide rail is connected with a top plate in a sliding mode. The invention relates to the technical field of pipe jacking construction. Modular design is adopted, all parts are convenient to disassemble and assemble, the construction efficiency and flexibility are greatly improved, in the pipe jacking construction process, if parts such as a hydraulic push rod and a top plate are damaged, it is not needed to replace the whole device like a traditional integrated pipe jacking machine, and it is also not needed to shut down for a long time to conduct complex maintenance on independent parts; the modular design enables the maintenance work to be simple and fast, and the maintenance time is greatly shortened.

This utility model relates to the field of vertical mill roller sleeve technology. It provides a wear-resistant roller sleeve for a vertical mill, comprising a roller sleeve body, a reinforcing layer fixedly installed on the upper outer side of the roller sleeve body, an inner cavity fixedly opened inside the roller sleeve body, a first insertion block fixedly connected inside the inner cavity, and a second insertion block fixedly connected to the right side of the first insertion block. An expansion ring is fixedly installed at the front end of the second insertion block, and an installation block is fixedly installed at the front end of the expansion ring. A cylinder is fixedly installed at the front end of the installation block. This invention solves the technical problems of traditional vertical mill roller sleeve installation, where the roller sleeve is fixed to the grinding roller with screws, resulting in long maintenance time during disassembly and replacement due to roller sleeve wear, leading to increased downtime and reduced production continuity. Furthermore, the roller sleeve is in direct contact with the material during use, and prolonged contact with hard materials can easily damage the roller sleeve, reducing its lifespan and increasing production costs.

The screwdriver handle comprises a pinching part, an extension rod and a chuck, the pinching part is provided with a first end and a second end which are opposite to each other, the first end is provided with a first insertion hole, the first insertion hole is configured to be in insertion connection with a tool head, and the shape of the first insertion hole is matched with that of the insertion end of the tool head; the second end is provided with a mounting hole; the extension rod is provided with a third end and a fourth end which are opposite; the third end is provided with a tail cover; the clamping head is connected with the pinching part, the clamping head is provided with a through hole, the through hole is communicated with the mounting hole, and the through hole and the mounting hole are configured to allow the extension rod to extend into; the chuck is provided with a locking mechanism, when the locking mechanism is in an unlocking state, the extension rod can move in the through hole in the axial direction of the through hole, and when the locking mechanism is in a locking state, the position of the extension rod is locked. The length of the screwdriver handle can be adjusted according to using requirements, and the comfort degree of a user using the screwdriver handle is greatly improved.

The invention discloses an adjustable flow monitor probe fixing device for a coal mine, and belongs to the technical field of flow monitor probe fixing. A lateral observation opening is formed in the side wall of a storage sleeve, an L-shaped pipeline is arranged in the middle section of the side wall of the storage sleeve, and a first insertion opening and a second insertion opening are formed in the two ends of the L-shaped pipeline respectively; a quick insertion rod is inserted into a corresponding hole of the first insertion opening, the quick insertion rod is fixedly connected with the L-shaped pipeline, and a probe mounting ferrule is arranged at the tail of the quick insertion rod; and a vertical height adjusting rod is inserted and connected into the second inserting opening. The lateral adjusting system, the vertical adjusting system and the overall detachable mechanism cooperate to achieve accurate positioning of the probe in a three-dimensional space (width, height and position), the adaptability of equipment to a complex mine ditch environment is improved through the detachable structure, meanwhile, the installation process is simplified, it is guaranteed that the probe of the flow monitor is located at the optimal monitoring position all the time, and the flow monitoring efficiency is improved. The reliability of monitoring data is improved; and the service life of equipment is prolonged.