97results about How to "Play the role of orientation" patented technology

The invention relates to the field of electronic cigarettes, in particular to assembling equipment for an electronic cigarette atomization head. The assembling equipment comprises a workbench and further comprises a rotary locating mechanism, a first procedure mechanism, a second procedure mechanism, a third procedure mechanism and a fourth procedure mechanism, wherein the rotary locating mechanism, the first procedure mechanism, the second procedure mechanism, the third procedure mechanism and the fourth procedure mechanism are mounted on the workbench. The rotary locating mechanism comprisesa carrying rotating disc and a rotary driving assembly. The carrying rotating disc is provided with four locating assemblies used for being in contact with a workpiece in an abutting manner. The first procedure mechanism comprises a first feeding assembly. The second procedure mechanism comprises a second feeding assembly, a first material shifting assembly and a first tool assembly. The third procedure mechanism comprises a third feeding assembly, a second material shifting assembly and a second tool assembly. The fourth procedure mechanism comprises a discharging track and a rotary discharging assembly. The discharging track is fixedly mounted at one side of the workbench through a support. The rotary discharging assembly is located above the discharging track. By means of the equipment, the electronic cigarette atomization head can be assembled automatically; and the equipment is simple in structure, and the efficiency is improved.

The invention provides a lifting device for an onboard optoelectronic platform, belongs to the technical field of aviation optoelectronics, and solves the problems of unstable structure and poor rigid connectivity of the existing lifting device for the onboard optoelectronic platform. The device comprises a gear bank, a motor, a substrate, a lifting plate, four screws, four toothed belt wheels and a toothed synchronous belt, wherein the gear bank comprises a driving gear and a driven gear; the lifting plate is connected with the four screws; upper and lower ends of the four screws are connected with the substrate; the motor is installed on the substrate; the driving gear is arranged on the motor; the driven gear is connected with one of the four screws; the toothed belt wheels are connected with the upper ends of the screws; the toothed synchronous belt is wound on the four toothed belt wheels; when the motor is operated, the driven gear drives one of the four screws to rotate, then the toothed synchronous belt drives the four toothed belt wheels to rotate synchronously, and the rotation movement of the four screws is changed into up-and-down movement of the lifting plate. The lifting device disclosed by the invention is compact in structure, easy to install and stable.

The invention provides an opening type interbody fusion cage. The opening type interbody fusion cage comprises a fusion cage body, a push block, a jackscrew and two end covers. The fusion cage body is in a rectangular frame shape, the push block is installed in the fusion cage body, the two end covers are arranged at the top and the bottom of the fusion cage body respectively, a rectangular boss is arranged on one end face of the fusion cage body, the other end of the fusion cage body is in a transitional sharp corner shape, the jackscrew is arranged in the middle of the rectangular boss and connected with the rectangular boss through threads, and wedge-shaped protrusions are arranged at the two ends and the middle poison of the push block respectively. In a working state, the ends, close to the jackscrew, of the wedge-shaped protrusions are platforms, and a first round hole matched with the jackscrew in installation is formed in the platform of the wedge-shaped protrusion, close to the jackscrew, of the push block. Tooth-shaped protrusions are evenly distributed on the upper surfaces of the end covers, and wedge-shaped grooves matched with the wedge-shaped protrusions are formed in the two ends and the middle of the bottoms of the end covers. The jackscrew is rotated to drive the push block to move to one end, and the wedge-shaped protrusions are made to slide along the slopes of the wedge-shaped grooves to open the end covers in parallel. A lateral approach implantation method can be adopted, surgery is simple, damage to the spine is very small, and higher stability is achieved.

The invention provides an improved external wall draining pipe dredging structure and belongs to the field of water draining pipes. The problem that an existing water draining pipe is inconvenient to dredge is solved. The improved external wall draining pipe dredging structure comprises a water draining pipe, wherein a plurality of positioning sleeves are arranged in the water draining pipe and are connected with the inner wall of the water draining pipe through connecting rods, and positioning holes are formed in the positioning sleeves. The improved external wall draining pipe dredging structure further comprises a plurality of front moving rods and a plurality of rear moving rods, wherein the rear ends of the front moving rods are hinged to the front ends of the adjacent rear moving rods through hinge portions, and the rear ends of the rear moving rods and the front ends of the adjacent front moving rods are detachably connected through connecting portions. The improved external wall draining pipe dredging structure further comprises positioning rods provided with sharp front ends and provided with connecting portions at rear ends, wherein the rear ends of the positioning rods are detachably connected with the front ends of the front moving rods at the ends. The improved external wall draining pipe dredging structure facilitates winding of a dredging rope and can perform rapid connection as required.

The invention relates to a permanent magnet guide device for a semi-automatic welding trolley. The guide device comprises a bracket, wherein one side of the bracket is provided with permanent magnets and fixed on the semi-automatic welding trolley through a fixing connecting plate; the other side of the bracket is connected with the fixing connecting plate, attracted to a plate beam rib plate through the permanent magnets and in contact with the plate beam rib plate; and the permanent magnets are not in contact with the plate beam rib plate. The guide device has a simple structure and runs reliably; the bracket is attracted to the plate beam rib plate under the action of magnetic force of the permanent magnets, but the permanent magnets are not in contact with the plate beam rib plate, so that resistance produced when the bracket moves is eliminated, bracket bearings are only attracted and attached to the plate beam rib plate due to the action of the magnetic force, and high positioning accuracy is achieved; meanwhile, the bracket is arranged on the semi-automatic welding trolley through the fixing connecting plate, so that an effect of guiding and positioning the semi-automatic welding trolley is achieved, and the guide device is easy and convenient to operate.

The invention discloses an automobile modular framework assembly. The assembly comprises a first beam, a second beam, a third beam, a fourth beam, a first L-shaped connecting piece, a second L-shaped connecting piece, a first depression bar, a second depression bar, a core bar, a first bolt, a second bolt and a nut; the left and right side faces of the first beam, the second beam and the third beam are all provided with first T-shaped grooves extending in the lengthwise direction, the upper and lower side faces of the first beam are each provided with two second T-shaped grooves extending in the lengthwise direction, the upper and lower side faces of the second beam are each provided with a second T-shaped groove extending in the lengthwise direction, and the upper and lower side faces of the third beam are planes; the two sides of the fourth beam are each provided with a first T-shaped groove extending in the lengthwise direction, and the part between the two side faces of the fourth beam is in an arc shape. When the automobile modular framework assembly is applied to automobile framework assembling, the varieties of needed components are few, the assembling speed is high, the production efficiency is high, all the components can be produced in a standardized mode, the cost is low, the strength is high, maintenance is convenient, and the automobile modular framework assembly has a very wide market prospect.

The invention discloses round wood ring cutting equipment for wood processing. The round wood ring cutting equipment structurally comprises foot cups, supporting columns, a first transmission chain, small gears, big gears, guiding wheels, a second transmission chain, a third transmission chain, a saw web outlet, a clamping device, a supporting face, a cutting device, a cross rod, a first supporting frame, a driving gear, a first motor, a center shaft, a rotation shaft, box iron and rollers. The foot cups and the bottoms of the supporting columns are in threaded connection. The supporting columns are vertically arranged. The tops of the supporting columns are vertically arranged at the bottom end of the box iron in a welding connection manner. According to the round wood ring cutting equipment for wood processing, a saw web in the cutting device can reciprocate up and down, and when cutting is needed, a wane is elevated, the saw web can cut round wood, and when saw web cutting is not needed, the saw web can be lowered into the supporting face, the saw web is effectively prevented from hurting an operator during idling, and meanwhile the service life of the saw web can be protected.

The invention relates to the field of durian picking, in particular to automatic durian picking equipment. The automatic durian picking equipment comprises a car, a loading mechanism, a horizontal transition mechanism, a rotation mechanism, a lifting mechanism and a clamping mechanism; the loading mechanism includes an accommodating car and a feeding rail, a feed inlet is arranged in the top of the feeding rail, the horizontal transition mechanism includes a parallel rail and a horizontal transition base, the rotation mechanism includes a driving rotation assembly and a rotation turntable, thelifting mechanism includes a connecting rod base, a lifting connecting rod and a fine-turning connecting rod, one end of the fine-turning connecting rod is hinged to the interior of the lifting connecting rod, the lifting mechanism includes a controller, a sensor, a rotating assembly, a cutting machine and a positioning clamping assembly, the rotating assembly can be rotatably arranged at the working end of the lifting connecting rod, the cutting machine and the positioning clamping assembly are respectively arranged in the rotating assembly, the controller is arranged in the rotating assembly, and the sensor is arranged in the positioning clamping assembly. By the arrangement, the equipment can pick durians automatically from multiple angles, and picking efficiency is improved.

The invention discloses a detachable scalpel. The detachable scalpel comprises a scalpel handle and a scalpel body which are matched with each other, wherein the scalpel handle comprises a scalpel handle body, the end portion of the scalpel handle body is provided with a rotator, and the end portion of the rotator is provided with an inserting slot; the end portion of the scalpel body is providedwith an inserting plug matched with the inserting slot. The detachable scalpel has the advantages of being firm and stable in connection and capable of flexibly adjusting the angle of the scalpel body.

The invention discloses a flange type full slewing heavy duty crane installation method, which comprises the following steps that: 1) a machine room is hoisted to the front above a base, and the flatness of a flange face at the upper end of the base is measured by using a level to ensure the flatness thereof; 2) when the machine room and the base are installed, at least three guiding and positioning screws are used, the guiding and positioning screws are uniformly distributed in bolt holes at the lower end of a rotary bearing of the machine room in advance before hoisting and positioning, the extending lengths of the guiding and positioning screws are different during installation, then the guiding and positioning screws are inserted into corresponding screw holes of the flange face at the upper end of the base in turn respectively, and the clearance between the flange face and the rotary bearing is detected by using a feeler gauge after positioning; and 3) after the positioning is finished, step-by-step pre-tightening, total pre-tightening and total pre-tightening are performed by means of a supporting tool of a torque wrench so as to finish butting operation of the machine room and the base. The method can reduce the positioning difficulty when a crane is hoisted, quickly and accurately finish positioning and successfully finish the butting operation of the machine room and the base.

The invention discloses a mechanism for quickly positioning airplane components. The mechanism is provided with a guiding and positioning mechanism and a limited seat which cooperates with the guiding and positioning mechanism, wherein the guiding and positioning mechanism is provided with a positioning shaft; the positioning shaft is cylindrical; connecting shafts are respectively arranged at two ends, in the positioning shaft, and are connected with holes in the airplane components; an axial limited block is arranged on the positioning shaft, and is arranged in the middle of the positioning shaft in a sleeving manner; the limited seat is provided with a base; an axial positioning groove is formed in the base, and cooperates with the axial limited seat so as to perform axial positioning on the guiding and positioning mechanism. Through the adoption of the mechanism disclosed by the invention, the purposes that the airplane components are quickly positioned and connected when being mounted at different work positions or being remounted are realized; the positioning flexibility of the airplane components and the mounting flexibility of the airplane components are realized; products are adapted to being mounted, dismounted and transferred at different work positions on a production line; the production preparation cycle is shortened; the cost for researching and manufacturing airplanes is reduced.

The invention discloses an anti-theft and anti-radiation communication base station. The anti-theft and anti-radiation communication base station comprises an antenna, an anti-radiation shielding shield, a signal transmitting receiver, a radiation detector, a pager, a rotating shaft, a climbing ladder, a support column, a base, a lightning rod and a platform; one side of the antenna is fixedly connected with the lightning rod, the bottom end of the antenna is provided with the anti-radiation shielding shield, and the radiation detector is hung on one side of the anti-radiation shielding shield; the middle of the supporting column is fixedly provided with the platform, and the signal transmitting receiver and the pager are correspondingly arranged on the two sides of the platform; the rotating shaft is arranged on the position, at the bottom end of the platform, of the supporting column ; and the climbing ladder is arranged in the supporting column, and the supporting column is fixedlyconnected with the base. According to the anti-theft and anti-radiation communication base station, equipment of the base station is avoided from being stolen, personal safety of people is protected,the radiation intensity of signal sources is reduced, a flash lamp can also position and guide the direction at night, the radiation detector detects the radiation intensity in real time, and the pager can send an alarm signal to a general console.

The invention discloses a flat iron bending device for electric power construction. The flat iron bending device for the electric power construction structurally comprises a bottom plate, a left sideplate, a first bending device, a first sliding rail, a first sliding block, a hydraulic cylinder, a right side plate, a second bending device, a partition plate, an ejection block and a lifting rod, wherein the top of the bottom plate is sequentially provided with the left side plate, the first bending device, the partition plate, the second bending device and the right side plate from left to right. According to the flat iron bending device for the electric power construction, the double-station bending devices are arranged on the bottom plate, the double-station bending devices can provide two different bending shapes, when one of the bending shapes is needed, the hydraulic cylinder on the first sliding rail can be moved, and flat iron to be bent on one bending device can be machined through up-and-down extension and retraction of a piston rod of the hydraulic cylinder; and positioning and pressing devices are arranged on the left side and the right side of each bending device so that the influence on the machining quality caused by the fact that the flat iron deviates in the machine process can be prevented, and the positioning and pressing devices play a role in positioning andguiding.

The invention relates to the field of techniques, and in particular to a cement wire pole climbing transportation device for electrical equipment maintenance. The device comprises a crawling mechanism, an accommodating mechanism and a telescoping mechanism, wherein the crawling mechanism comprises two crawling components; the two crawling components respectively comprise two clamping jaws and a clamping driving component; the clamping driving components are respectively in driving connection with each clamping jaw; a buffering clamp is respectively arranged below each clamping jaw; the telescoping mechanism comprises a lifting box and a lifting top plate; a telescopic driving component capable of driving the lifting of the lifting top plate is arranged inside the lifting box; the bottom ofthe lifting box is fixedly arranged on the top of one of the clamping driving components; the top of the lifting top plate is fixedly arranged at the bottom of the other clamping driving component; the accommodating mechanism comprises a storage box; a hinged door is arranged at one side of the storage box; a lifting driving component is arranged inside the storage box; and the lifting driving component is a liftable plate. The device has the beneficial effects that articles can be automatically lifted and transported along a wire pole and the transportation efficiency is improved.

The invention relates to an occlusion apparatus for opening and occluding sternum plates. The occlusion apparatus is characterized in that two screw seats are arranged on a screw, the screw penetratesthe screw seats, and the screw seats are fixed onto slide rods by the aid of dowels; rotary wheels are arranged at two ends of the screw and are fixed onto the screw by the aid of pins; the screw isprovided with left and right right-hand and left-hand double-start threads, a left arm and a right arm are distributed at two edges of the screw, first threaded holes are formed in the left arm and the right arm, slide rails are arranged on the left arm and the right arm, the first threaded holes and the screw are in threaded transmission with one another, the slide rails and the slide rods are inslide fit with one another, and the left arm and the right arm can move in a reciprocating manner by the aid of the slide rods when the screw clockwise and anticlockwise rotates, so that the left armand the right arm can be quickly separated from each other or can be quickly drawn in. The occlusion apparatus has the advantages that the left arm and the right arm can be separated from each otheror can be drawn in by the aid of movement principles of the right-hand and left-hand double-start threads of the screw, and accordingly the sternum plates can be quickly separated from one another orcan be quickly drawn in by the aid of double-start threads.

The invention provides a base mechanism, a shell assembly and a water heater. The base mechanism comprises a base assembly and a supporting portion. The base assembly is located below a shell and / or an inner container of the shell assembly and used for supporting the shell and / or the inner container. The supporting portion is located between the base assembly and the shell or the inner container,and the shell and the base assembly are connected through the supporting portion. The problem that connection stability between a shell or an inner container of a water heater and a base assembly is poor in the prior art is effectively solved.

The invention relates to an offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and a construction method thereof. The offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and the construction method thereof are simple in structure, convenient to construct, low in cost, safe and stable. According to the technical scheme, the offshorewind-driven generator multi-pile-suction barrel-jacket foundation structure is characterized in that a plurality of suction barrels are uniformly arranged at the bottom of a jacket, wherein guide sleeves communicating with the interiors of the suction barrels are arranged in the centers of the tops of the suction barrels; the jacket is supported on a seabed through the suction barrels and fixed to the seabed through steel pipe piles inserted into the guide sleeves and driven into the seabed; and high-strength grouting materials are poured into gaps between the guide sleeves and the steel pipepiles. The offshore wind-driven generator multi-pile-suction barrel-jacket foundation structure and the construction method thereof are suitable for the technical field of ocean engineering.

The invention provides a ball-type video camera which comprises a mounting bracket and a ball-type video camera body, wherein an inner joint extends upwards from the ball-type video camera body; the ball-type video camera further comprises a quick coupler; the quick coupler comprises an external thread round tube connected with an inner thread of the mounting bracket, and a circular ring coaxially connected with the external thread round tube; a plurality of first screw holes are arranged on the end face of the circular ring; a limiting platform is arranged on the inner wall of the circular ring; the inner joint comprises a cylindrical boss, of which the centre is provided with a first combined cable; the first combined cable extends from the upper surface of the cylindrical boss and is connected with a second combined cable in the mounting bracket; second screw holes corresponding to the first screw holes are arranged on the end face of the cylindrical boss; a limiting flat plate corresponding to the limiting platform is formed on the end face of the cylindrical boss, and the inner joint is inserted into the quick coupler and connected through the first screw holes and the second screw holes via screws.

The invention discloses an injection mould of locomotive toy series, and particularly relates to the field of toy injection moulds. The injection mould includes an upper mould, a middle cooling positioning frame and a lower mould, wherein the upper mould and the lower mould are correspondingly and movably arranged at the top and the bottom of the middle cooling positioning frame, steps are correspondingly arranged on the edge of the bottom of the upper mould and the edge of the top of the lower mould, a water inlet pipe is arranged on one sides of the steps, a water outlet pipe is arranged onthe other sides of the steps, and a mould groove is formed in the surface of the bottom of the upper mould. The injection mould of the locomotive toy series is arranged in the middle cooling positioning frame by using a cooling water circulating water supply system, in use, circulating water after cooling in an internal cooling passage is extracted and transported into the upper mould and the lower mould through a circulating pump, an injection molded part in the mould groove is cooled, the problem that in the prior art, water cooled systems need to be reconnected after the upper mould and thelower mould are replaced due to water cooled circulation systems internally arranged in the upper mould and the lower mould is solved, and the cost that the water cooled systems are both arranged ineach upper mould and each lower mould is also saved.

The invention discloses a rebar head portion upsetting machine and a use method thereof and belongs to the field of cold headers. An upsetting die and an upsetting device are installed on a machine frame. The rebar head portion upsetting machine comprises guide rods; the guide rods penetrate through the upsetting die and the upsetting device sequentially be arranged on the machine frame from left to right; the upsetting die comprises a clamping die and a die cavity; the die cavity is located in the clamping die; the upsetting device comprises an upset head cap and an upsetting head; the upsetting head is arranged at the left end of the upset head cap; the right end of the upset head cap is arranged on a hydraulic control system. The upsetting machine further comprises a front movable board and a rear movable board, wherein the front movable board is arranged on the right side of the upsetting die; the upsetting head on the upsetting device sequentially penetrates through the rear movable board and the front movable board; the left end of the rear movable board is arranged on the upset head cap; the guide rods penetrate through the front movable board and the rear movable board and the front movable board and the rear movable board are connected through a lead screw; the guide rods are cylindrical; the rear movable board can move on the guide rods left and right. The rebar head portion upsetting machine is large in upsetting force, high in upsetting quality and stable in complete-machine performance.

The invention discloses a silk weaving extension device of a textile machine, and relates to the technical field of textile machines. The silk weaving extension device comprises a top seat, wherein side plates are fixedly connected to both ends of the bottom of the top seat, a connecting plate is fixedly installed at the bottoms of the side plates, studs are respectively inserted into the bottomsof the side plates and the top of the connecting plate, and elastic washers and nuts are fixedly installed on both ends of the studs in sequence from inside to outside. According to the silk weaving extension device of the textile machine, the earthquake resistant performance of the extension device is improved, small-scale elastic deformation can be performed, the damage to the extension device due to sliding is avoided, the service life is prolonged, the extension device is convenient to install and remove, the later maintenance is facilitated, the operation is simple and quick, the labor intensity of working personnel is reduced, the stability of the extension device is increased, the power transmission is guaranteed, and the height of the extension device can be accurately adjusted dueto special and novel structural design, so that the silk weaving accuracy is increased.

The invention discloses a machining device of a vehicle-carrying plate in a parking garage, and belongs to the technical field of vehicle-carrying plate machining. The machining device is characterized by comprising a fixing plate; a mounting plate is arranged below the middle of the fixing plate; an air cylinder is mounted in the mounting plate; connecting plates are fixedly connected to the topends of the two sides of the mounting plate; the upper surfaces of the connecting plates are attached and connected with the lower surface of the fixing plate through buffer springs; through holes areformed in the two sides of the end part of the upper surface of each connecting plate; and guide columns penetrate through the through holes. According to the machining device, the buffer springs arearranged on the connecting plates, so that a certain buffer effect is provided when the vehicle-carrying plate is placed on the machining device, the vehicle-carrying plate is prevented from being damaged due to impact, and the safety of the device is improved; the through holes are formed in the connecting plates, the guide columns are arranged in the through holes, and the guide columns are matched with the through holes to play a role of positioning and guiding, so that the mounting plate and the air cylinder are kept to vertically move up and down.

The invention discloses a transmission device of an optical detector. Two sliding rails (6) which are mutually parallel and vertical to a base (5) are arranged on the base (5); the dead ends of the sliding rails (6) are provided with barrier seats (4); a clamp tailstock (1) and a clamp table (13) which are connected by a connecting rod (14) are arranged on each sliding rail (6); two ends of the clamp table (13) are provided with a pressure claw (3) and steps for placing a PCB (2), which are arranged symmetrically; a linkage I (7) is connected on the clamp tailstock (1) by a rolling bearing; one end of the clamp table (13), away from the clamp tailstock (1), is connected with a linkage IV (10) by a rolling bearing; a linkage III (9) is connected with the linkage I (7) and the linkage IV (10) by a rolling bearing (11); and the other end of the linkage IV (10) is connected with the pressure claw (3). The transmission device has the benefits of improving detection efficiency and accuracy, being capable of conducting transmission on the PCB and automatically clamping the PCB after transmission in place.

The invention discloses a fruit picking and collecting device, and belongs to the field of picking of fruits and vegetables. The device comprises a cutting unit, a driving unit, a supporting rod and acollecting unit, wherein the cutting unit comprises a blade and a guiding fork rack; the blade is intersected with a guiding groove of the guiding fork rack; the driving unit comprises a motor and isused for driving the blade to rotate; a connecting seat is arranged at the top end of the supporting rod; the cutting unit and the driving unit are mounted on the connecting seat; the collecting unitcomprises a net frame, a receiving net and a reel; the net frame and the reel are mounted on the supporting rod; at least three groups of wire holes which are distributed at intervals are formed in aring of the net frame; and elastic ropes penetrate through the wire holes in the net frame and are connected with the receiving net. The invention aims to overcome the shortcoming that the quality and efficiency of an existing fruit picking device finished product cannot be ensured, and provides the fruit picking and collecting device. By the collecting unit in the device, picked fruits can be effectively prevented from being damaged, the picking efficiency can be improved, and a using process is convenient and safe.

The invention discloses a forming die of a cross beam prefabricated part and a mounting and using method thereof, and belongs to the technical field of building prefabricated parts. The forming die comprises a steel bottom die body, a rectangular forming groove concaved inwards is formed in the center of the steel bottom die body, a plurality of rectangular blocks are evenly arranged in the forming groove in the length direction and the width direction at intervals, steel bar mounting grooves which are vertically crossed in the longitudinal and transverse directions are formed in the blocks, and the top height of the blocks is kept consistent with the top height of the outer edge position of the periphery of the steel bottom die body. The upper portion of each block is provided with an inner die which is matched with the block and is of a box structure, and the top of each inner die is provided with a lifting steel frame of a grid structure. The die aims at solving the problem that in the prior art, a cross beam prefabricated part with a reinforcing mesh is difficult to mold and pour at a time, the die can achieve one-time molding and pouring, demolding is convenient, and the production efficiency is improved.

A cut-away waste cigarette processing device, including a smoke conveying device, a smoke compressing device, and a tobacco cutting device, characterized in that the smoke compressing device is installed above the smoke conveying device, and the smoke cutting device is installed above the smoke conveying device and the tobacco compressing device. At the rear of the smoke device, the smoke delivery device is a belt conveyor or a belt conveyor or a chain plate conveyor, including a driving wheel, a conveyor belt and a driven wheel. The driving wheel and the driven wheel are connected by a conveyor belt. The advantages of the present invention: 1) , The waste cigarettes fall into the groove on the conveyor belt, and the groove plays a role in positioning and guiding the cigarettes, so the blade can cut the waste cigarettes from the middle at one time, so there is less paper scraps in the shredded tobacco; 2 ), because the waste cigarettes are only cut once, and the next process does not whip or hard damage the cigarettes, so the recovered shredded tobacco has a high whole shred rate, which greatly improves the comprehensive recycling rate of shredded tobacco.

The invention discloses a cylindrical clamping barrel which comprises a barrel body. An inserting column is arranged on the outer surface of the barrel body, a plurality of protruding teeth are arranged on the inner surface of the end portion of the barrel body, the protruding teeth are arranged to be in a circular shape, claming grooves are formed between adjacent protruding teeth, a first inclined sliding groove and a second inclined sliding groove are formed in the end portion of the barrel body, the cross section of the first inclined sliding groove is in a U-type shape, the cross section of the second inclined sliding groove is in a U-type shape, the first inclined sliding groove is arranged between two adjacent protruding teeth, and the second inclined sliding groove is arranged between two adjacent protruding teeth. According to the cylindrical clamping barrel, a gear shaft can be sleeved quickly, the gear shaft will not be damaged through the inclined sliding grooves, and the gear shaft is clamped more firmly by arranging the protruding teeth and the clamping grooves in a staggered mode.

The invention provides a medical puncture needle. The puncture needle comprises a syringe, a puncture needle body slidably connected to the syringe, and a push rod detachably connected to the punctureneedle body; the syringe needle of the puncture needle body is set as a three-diamond shape; two positioning blocks are arranged at symmetrical positions on both sides of the needle body of the puncture needle body; the two sides of the syringe are provided with sliding grooves which are slidably connected with the positioning blocks to guide and position the puncture needle body during the puncture process. The medical puncture needle is simple in structure; the syringe needle of the puncture needle body is set as the three-diamond shape, and guide components are arranged, so that precise puncture is realized, thereby ensuring the safety of the operation process.