31results about How to "Prevent separation" patented technology

The invention provides an automatic cutting device for mold machining, and relates to the technical field of mold machining, the automatic cutting device for mold machining comprises an equipment main body, a machining area, a circular guide rod, a second guide rod, a laser cutting head and a tool clamp. The second guide rod sequentially comprises a dismounting section, a cooling section, a machining section and a mounting section in the length direction, a laser cutting head is fixedly mounted at the position, corresponding to the machining section, of the inner top of the machining area, movement of the tool clamp is guided through the circular guide rod and the second guide rod, and it can be guaranteed that the cutting process has high precision; the first control mechanism and the second control mechanism are designed, the first control mechanism is used for pushing the tool clamp from the mounting section to the cooling section through the machining section, the second control mechanism is used for moving the tool clamp from the cooling section to the dismounting section and the mounting section, the process can be automatically completed, slow cutting of the die steel is adapted, and the working efficiency is improved. And batch production of the die can be realized.

The application relates to a battery assembling terminal mounting device and method; the battery assembling terminal mounting device comprises an arrangement mechanism and a mounting mechanism movably arranged above the arrangement mechanism, the mounting mechanism comprises a telescopic frame movably and rotatably arranged above the arrangement mechanism, clamping arms openably and closably arranged on the telescopic frame, a material distribution assembly and a welding assembly; the arrangement mechanism positions a plurality of batteries after combination covers; after the clamping arms move to the material distribution assembly with the telescopic frame and position and clamp terminals, the clamping arms move with the telescopic frame to connect connecting holes of the terminals to pole columns of the batteries, and welding is performed through the welding assembly; the battery assembling terminal mounting method based on the above battery assembling terminal mounting device comprises the following steps: an arrangement process, a detection process, a removal process and a mounting process; the application solves the problems of low production efficiency, low product consistency, heavy burden on operators and hidden safety hazards during terminal mounting.

The sitting posture correcting type desk chair comprises a desk plate, a storage opening is formed in one end face of the desk plate, a desk barrel is arranged on the other end face of the desk plate, a placing table is detachably connected to the lower portion of the outer portion of the desk barrel, the whole placing table is in an L shape, and desk legs are detachably connected to the portions, on the two sides of the desk barrel, of the desk plate. Racks are arranged on the end faces of the inner sides of the table legs, the racks are flush with the table legs, pens can be stored by forming the storage opening in the table plate, a water cup can be stably placed through the placing table, and therefore students can use the table conveniently, the table can be connected with the fixing bases on the chair legs through the racks, and the table is convenient to use. Therefore, the positions of the desk and the chair are kept unchanged after adjustment, and students can use the desk and the chair more conveniently.

The present invention provides an auto-injector comprising: a power unit (2) having a plunger rod (13); a drug cartridge (3) for containing a drug container (10); a mechanical connection mechanism (20, 60) for a releasable connection between the drug cartridge (3) and the power unit (2); a locking mechanism (22, 30, 40) for locking the connection between the drug cartridge (3) and the power unit (2); and an activation mechanism capable of releasing the locking mechanism (22, 30, 40) when the plunger rod retracts completely.

The utility model discloses a safety seat buckle which comprises a male buckle assembly, the male buckle assembly comprises a first male buckle and a second male buckle, the first male buckle is fixedly connected with a first positioning block, the bottom end of the first positioning block is provided with a second positioning block, the second positioning block is fixedly connected to the first male buckle, and the second positioning block is fixedly connected with a protruding block; positioning between the first male buckle and the second male buckle is achieved through the first positioning block and the second positioning block, the protruding block is matched with the clamping groove to prevent the two male buckles from being separated, partial pulling force borne by the buckle body is offset, and positioning between the male buckle assembly and the female buckle assembly is achieved through the third positioning block matched with the first positioning groove. The male buckle assembly is prevented from shaking, so that the bending force borne by the buckle body is counteracted, and the stability and the safety of the device are improved; according to the buckle body, the groove is formed in the inner side face and matched with the insertion block of the locking assembly, and therefore it can be guaranteed that locking is firmer.

The utility model discloses a railway tunnel construction supporting device which comprises supporting side plates and supporting top plates, the tops of the supporting side plates are fixedly connected and combined with the bottoms of the corresponding supporting top plates into a whole, and a disassembly and assembly combined assembly is combined at the joint position of the two supporting top plates. The tunnel supporting device has the advantages that the supporting side plates and the supporting top plate on the two sides can abut against the two sides of the interior of a tunnel to complete supporting operation in the mode that the two limiting wing plates of the assembling and disassembling combination assembly abut against each other, and the supporting mode of the tunnel is simple and easy to achieve; meanwhile, through the mode that a matching sleeve of the disassembly and assembly combination assembly is in vertical sliding fit with two close limiting wing plates and a limiting rod is in transverse sliding fit with a limiting hole, rapid detachable combination of the two limiting wing plates can be achieved, and then the supporting top plates on the two sides can be rapidly combined together to be prevented from being separated; the combination mode of the two supporting top plates is simple and easy to achieve.

The utility model discloses a support frame of a full-automatic imaging instrument, which relates to the technical field of imaging instruments and comprises a base, a movement mechanism is arranged at the top of the base, a support plate is arranged at the top of the base, and a sliding chute is arranged on the surface of the top of the support plate. According to the supporting frame of the full-automatic imaging instrument, the supporting plate moves downwards through the electric push rod, so that the limiting rod and the sleeve move downwards at the same time, the toothed rail is engaged with the gear, the gear and the threaded rod rotate at the same time, and the threaded rod is in threaded connection with the sleeve, so that the limiting rod is pushed to move and can be fixed to the bottom end of the imaging instrument; according to the projector support, the projector can be conveniently installed, the supporting plate is made to move upwards through the electric push rod, the gear can also be made to rotate, the limiting rod and the projector are separated through the same operation, the position of the projector is raised, the projector fixing and taking functions are simple, and therefore the use convenience of the support is guaranteed.

The utility model belongs to the technical field of concrete-filled steel tube supports, and particularly discloses a concrete-filled steel tube support connecting device with a reinforcing structure, which comprises a left steel tube and a splicing tube, the splicing tube is inserted into the right side of the inside of the left steel tube, and a right steel tube is sleeved outside the right side of the splicing tube. Screw holes are transversely formed in the front ends and the rear ends of the top ends and the bottom ends of the splicing pipes correspondingly, and sliding grooves are formed in the front ends and the rear ends of the upper portions and the lower portions of the surfaces of the left steel pipe and the right steel pipe correspondingly. According to the concrete-filled steel tube support connecting device with the reinforced structure, screw holes are transversely formed in the front and rear positions of the top end and the bottom end of a splicing pipe correspondingly, a left steel tube and a right steel tube are connected to the two sides of the splicing pipe in a sleeving mode, and then a threaded block is pushed along a sliding groove, so that a push block on the side face of the threaded block is attached to the surface of the splicing pipe; the threaded blocks and the threaded holes which are consistent in horizontal direction are aligned, the screws are screwed in for reinforcement, the nuts are connected to the two sides in a sleeving mode, and the object is screwed tightly, so that the problem of insufficient connection strength is solved.

The utility model provides an energy-saving and environment-friendly water purifier, which relates to the technical field of water purifiers and comprises a water purifier main body, a first water pump is arranged on one side of the water purifier main body, a hose is arranged on one side of the first water pump, a connecting plate is arranged at the top of the water purifier main body, and a water outlet is formed in the connecting plate. A second water pump is fixedly connected to the top of the connecting plate, a display screen is arranged at the top of the second water pump, a connecting pipe is arranged at the bottom of the second water pump, a filter element is arranged on the surface of the connecting pipe, a water outlet pipe is arranged on one side of the second water pump, and a first bolt is inserted into the top of the connecting plate in a threaded penetrating mode. When the connecting device is used, the filter element is manually slid into the fixing frame, then the filter element is well arranged at the bottom of the connecting plate, and the filter element can be detached through reverse operation, so that the filter element can be replaced without professional personnel.

The invention relates to a temporary pipeline cut-off device, which belongs to the technical field of thermal power generation and comprises a holder, the holder comprises a pair of holding rods arranged in parallel at intervals, two sections of threaded rods are arranged on the holding rods at intervals, and the threaded rods and the holding rods are integrally arranged; an upper cover plate, an upper blocking plate, a lower blocking plate and a base plate are sequentially arranged between the two retaining rods from top to bottom, two symmetrically-arranged moving grooves are formed in each of the upper cover plate, the upper blocking plate, the lower blocking plate and the base plate, and the retaining rods sequentially and movably penetrate through the moving grooves from top to bottom. The top end of the upper cover plate is provided with a pressing nut which is arranged on the threaded rod located at the upper end of the retaining rod in a threaded sleeving mode, the bottom end of the base plate is provided with a jacking nut which is arranged on the threaded rod located at the lower end of the retaining rod in a threaded sleeving mode, and a lifting device used for jacking the lower blocking plate is further arranged between the lower blocking plate and the base plate. According to the device, under the condition that leakage occurs in front of a primary door, a pipeline can be temporarily cut off, defects are eliminated, and stable operation of a unit is guaranteed.

The utility model discloses a packaging bag composite film conveying and laminating device which comprises a conveying rack, and film driving roller mechanisms are assembled and connected to the two ends of the conveying rack respectively. The composite film is conveyed through the film driving roller mechanism; the packaging bag composite film conveying and laminating device further comprises an air-blowing laminating mechanism assembled on the rack. The air-blowing laminating mechanism comprises air-blowing pipe racks which are arranged up and down at intervals, and the film passes through the air-blowing pipe racks; a plurality of airflow through holes are formed in the side walls, facing each other, of the air blowing pipe frames; the air blowing pipe frame comprises a plurality of straight pipes which are horizontally arranged, and the straight pipes are communicated through bent pipes; the packaging bag composite film conveying and attaching device further comprises a film initial attaching mechanism installed on the machine frame, and the film passes through the air blowing pipe frames to be attached again after being preliminarily attached through the film initial attaching mechanism in the conveying process. According to the device, in the process of conveying the composite thin film, the film material is kept in a high-fitting state, and the film material is prevented from being separated.

The utility model relates to the technical field of paper box packaging, in particular to a jewelry box with folding paper flowers, which comprises a jewelry box body and the paper flowers, the box body is composed of two rotatably connected parts, and the paper flowers are composed of bottom-layer petals, middle-layer petals and upper-layer petals and are provided with bending parts, so that the paper flowers can be folded along with the box body when the box body is folded, and the paper flowers are prevented from being extruded. And the sliding placing frame is arranged in the box body, so that ornaments can be conveniently stored. The vertical plate is arranged on the box body, and paper flowers can be prevented from being extruded by the box body after the box body is folded. Connecting paperboards are arranged among the layers of the paper flower, so that the shape of the paper flower can be adjusted. Adsorption magnets are embedded in two sides of the box body to ensure that the folded box body is stable and not separated. Limiting paperboards and triangular limiting plates are arranged on the box body and the placing frame, so that the placing frame is prevented from sliding out. The placing frame is provided with a pull rope and a rubber layer, and operation is convenient. In addition, the placing frame is further provided with a limiting flange, and excessive pulling-out is prevented. The jewelry box aims at solving the problem that in the prior art, paper flowers on the jewelry box are prone to being squeezed in the transportation process, and the good protection effect is achieved.

The utility model provides an air conditioner pipeline structure, which relates to the technical field of air conditioner pipelines and comprises a first pipeline, a first fixing block is rotatably connected to the outer wall of one end of the first pipeline, a second pipeline is arranged on one side of the first pipeline, and a second fixing block is fixed to the outer wall of one end of the second pipeline. A clamping plate is fixed to one end of the first fixing block. When the device is in butt joint, through arrangement of a clamping cavity and a moving groove, a clamping plate and a clamping block are in butt joint and inserted, after the clamping plate and the clamping block are in butt joint and inserted, a user rotates a first fixing block to enable the clamping block to rotate in a rotating cavity, and meanwhile, a push plate is pulled to enable a clamping column to retract into an inner cavity, and when a connecting block outside the first fixing block and a connecting block outside a second fixing block are in butt joint, the clamping block and the first fixing block are in butt joint. And rotation is stopped, a push plate is loosened, a clamping column enters a limiting hole under reset of a spring, the phenomenon that a first fixing block and a second fixing block rotate is avoided, at the moment, a clamping block is located in a rotating cavity, the clamping block and a moving groove are staggered, and the effect of rapid mounting and dismounting is achieved.

A kind of composite shoe sole structure and shoe;Composite shoe sole structure includes: bottom pad, intermediate pad and fixed pad;Bottom pad, intermediate pad and fixed pad are connected in one;The upper surface of bottom pad is provided with accommodating groove;The bottom wall of accommodating groove is provided with multiple lower clamping blocks along length direction;Intermediate pad is set to the bottom wall of accommodating groove, and intermediate pad is provided with multiple intermediate holes along length direction;Fixed pad is set to accommodating groove and is set to the upper surface of intermediate pad;The lower surface of fixed pad is provided with multiple upper clamping blocks along length direction;Lower clamping block is limited in intermediate hole, and upper clamping block is limited in intermediate hole.This scheme improves the fixing stability of composite shoe sole structure, and can prevent the mutual sliding between pad and pad to cause the situation that composite shoe sole structure is divided, solve the problem that pad and pad of existing shoe sole structure are cracked when force direction is different.

The utility model provides a kind of formwork component for preparing anti-crack concrete of waste fan blade regenerated fiber, comprising: fixed rod;Extension rod, extension rod is respectively slidably connected in the two ends of the inner side of fixed rod;Supporting rod, supporting rod is respectively fixedly installed in the outer side of two extension rods one end, and the inside of supporting rod is provided with sliding slot.The utility model provides a kind of formwork component for preparing anti-crack concrete of waste fan blade regenerated fiber, through steel rope, sliding sleeve, push plate, screw ring, rubber sleeve, positioning sleeve and locking screw and so on Structure is mutually cooperated, when using, can be first by locking screw in the inside of the both sides of positioning sleeve and is connected by screw thread, to position positioning sleeve, then rotate screw ring and make it in the inner side of sliding sleeve and is connected by screw thread, to make sliding sleeve drive push plate and move, to make push plate drive baffle and clamp formwork, so it can increase the intensity of formwork and is clamped.

A quilt easy to unpick and wash comprises a quilt cover, a quilt core and quilt cover fixers. The quilt cover fixer comprises a quilt core fixing assembly, the quilt core fixing assembly comprises a first quilt core fixing cover body and a second quilt core fixing cover body, needle columns are arranged on the first quilt core fixing cover body, needle holes are formed in the second quilt core fixing cover body, and the needle columns penetrate through a quilt core and then are inserted into the needle holes, so that the first quilt core fixing cover body is fixedly connected with the second quilt core fixing cover body; the quilt cover fixing assembly comprises a first quilt cover fixing seat and a second quilt cover fixing seat; the first quilt cover fixing base and the first quilt core fixing cover body can be assembled into a whole, and the second quilt cover fixing base and the second quilt core fixing cover body can be assembled into a whole. The quilt cover and the quilt core are connected together through the combined action of the quilt core fixing assembly and the quilt cover fixing assembly, operation is convenient and fast, damage to the quilt cover is avoided, separation of the quilt cover and the quilt core can be effectively prevented in the use process, and good use experience is provided.

The utility model discloses a municipal pipeline joint leakproof embedment structure, including casing pipe and locating piece, the top end and bottom end of casing pipe outside are both provided with locating piece, install angle iron between locating piece and casing pipe, the threaded rod between one side of locating piece is movable connection, and the threaded rod center is movable sleeve joint with the partition block, and the partition block is fixed in the casing pipe. Balls are movably embedded in the four corners of the partition block. According to the anti-leakage embedded structure for the municipal pipeline joint, a circular ring is welded to one side of a sleeve, a threaded rod movably connected between positioning blocks can rotate in situ, when the sleeve is guided to be oppositely folded on the outer side of the pipeline, the sleeve can be closed through the circular ring with a meshing groove, and under lubrication of a ball, a separation block in the center enters a groove, so that water leakage is prevented; the positioning blocks are fixed to the upper surfaces and the lower surfaces of the sleeves on the two sides through the angle steel for locking, rapid installation of the structure is achieved, and the problem that the structure is inconvenient to install is solved.

The present invention discloses a cable with a long service life, comprising a connecting frame 1, a guide plate and two cable bodies, wherein a slide groove 2 is provided at the bottom of the connecting frame 1, wherein two connecting frames 2 are movably connected in the slide groove 2, and the bottoms of the two connecting frames 2 are fixedly connected with connecting frames 3, and the outer sides of the connecting frames 3 are movably connected with two clamping frames, and the two cable bodies are plugged in and fixed by clamping the clamping frames, wherein a bidirectional threaded rod is movably connected in the connecting frame 3, and the bidirectional threaded rod passes through the clamping frames and is movably connected with the clamping frames. The present invention can not only make the connection between the two cables more stable, avoid the separation of the connection between the two cables, and improve the stability of the cable connection, but also effectively increase its fireproof and wear-resistant effects, greatly increase the service life of the cable, and also improve the safety and stability of clamping and fixing the cable body.

The defect detection device comprises a detection box, two collection boxes are fixedly connected to the back face of the detection box, an installation box is fixedly connected to the position, located above the collection boxes, of the back face of the detection box, a first wedge-shaped strip is fixedly connected to the top of the installation box, a feeding port is formed in the top of the installation box, and a second wedge-shaped strip is fixedly connected to the top of the first wedge-shaped strip. And discharging holes are formed in the two sides of the mounting box correspondingly, and wedge-shaped strips II are fixedly connected to the bottoms of the inner walls of the two discharging holes correspondingly. Through cooperative use of the collecting boxes, the first wedge-shaped strip, the feeding port, the discharging hole, the second wedge-shaped strip, the first conveying assembly and other structures, defective cigarettes and non-defective cigarettes can fall into the two collecting boxes respectively, and the defective cigarettes and the non-defective cigarettes can be automatically and separately collected; the situation that defective cigarettes and non-defective cigarettes need to be separated manually is avoided, time and labor are saved, and the overall processing efficiency of the cigarettes is improved.

The utility model relates to the technical field of paper boxes, and discloses a portable paper box which comprises a paper box body. The paper box body comprises a box cover arranged at the top of the box body; the handle is arranged at the top of the box cover; the connecting cloth is arranged at the two ends of the handle and penetrates through the box cover. A fixing piece penetrates through the box cover and the connecting cloth; the through groove is formed in the outer side wall of the box cover and the outer side wall of the box body; the plastic part I is arranged on the inner wall of the through groove; the clamping piece is arranged on the outer side wall of the first plastic part. According to the portable paper box, firstly, the connecting cloth at the two ends of the lifting handle penetrates through the box cover, then the fixing pieces penetrate through the box cover and the connecting cloth, then the metal sticks are pulled towards the two ends, the fixing pieces are clamped on the box cover and the connecting cloth, the connecting cloth is prevented from being separated from the box cover, and after the lifting handle is damaged, the metal sticks are straightened; the fixing piece can be taken down from the box cover and the connecting cloth, then the lifting handle is replaced, and the service life of the paper box is better prolonged.

The utility model relates to the technical field of filters, in particular to a solvent filter which comprises a triangular flask, a filter element is installed above the triangular flask in a threaded mode, a filter cup is installed above the filter element through a clamp, and a first half hoop and a second half hoop are arranged on the portion, below the filter element, of the neck of the triangular flask in an outer hooping mode. The first half hoop and the second half hoop are fixedly connected through a fastener, a first half net bag is fixedly connected to the first half hoop, a second half net bag is fixedly connected to the second half hoop, a clamp penetrating opening is formed in the position, located on the clamp, of the second half net bag, a guide needle is fixedly installed above the first half net bag and the second half net bag, and a sleeve bead is installed at the position of the guide needle in a penetrating mode. According to the external lifting device, the container filter is subjected to moving safety protection in a net bag wrapping mode, the first half net bag and the second half net bag are tightened through the sleeve beads above the container filter, the whole external lifting device is prevented from being separated from the container filter, and the external lifting device is convenient to carry by hand.

The invention relates to the field of manufacturing vibration-damping components for rail vehicles, and specifically discloses a method for preventing separation of two-flap outer shells in a swing arm node and a swing arm node, wherein a buckle structure is matched and arranged at the connection between the two-flap outer shells, and the clamping force of the buckle structure is used to balance the axial component force f generated by the reaction force of extruding rubber, which tends to separate the two-flap outer shells axially outward, thereby preventing the two-flap outer shells from separating; wherein the swing arm node comprises a core shaft, a rubber body and an outer shell, the rubber body is vulcanized between the core shaft and the outer shell, the outer shell is a two-flap paired structure comprising an outer shell 1 and an outer shell 2, and mutually matching buckle assemblies are arranged on the paired surfaces of the outer shell 1 and the outer shell 2, the buckle assembly comprises a clamping groove and a clamping block, and the outer shell 1 and the outer shell 2 are clamped by clamping the clamping block in the clamping groove.

The invention provides a portable hot-melt pressure-sensitive adhesive coating tool, which comprises a coating gun and an adhesive gun seat, the adhesive gun seat comprises side vertical plates and a support plate, the side vertical plates are vertically connected to two sides of the support plate, an adhesive gun seat plate is fixedly connected between the two side vertical plates, the coating gun is arranged on the surface of the adhesive gun seat plate, and the adhesive gun seat plate is fixedly connected with the side vertical plates. A glue head is installed on the glue gun, semi-arc channel grooves are formed in the side vertical plates respectively, the glue gun base is rotationally connected with an overturning reinforcing base, the overturning reinforcing base comprises side vertical reinforcing plates and a supporting reinforcing plate, and the side vertical reinforcing plates are rotationally arranged on the sides, close to each other, of the side vertical plates respectively; by arranging the overturning reinforcing seat, on one hand, the overturning reinforcing seat can assist in supporting the glue gun seat when the glue gun is supported, so that the stability of the glue gun seat is improved, and on the other hand, the overturning reinforcing seat can be rotated to the top of the glue gun when the overturning reinforcing seat is carried, so that the glue gun and the glue gun seat can be handheld and carried together.

The present invention discloses a plastic-sealed branching device, which includes a locking nut, a shuttle-shaped spring chuck is arranged inside the locking nut, the spring chuck and the locking nut are locked by a conical sleeve, the conical sleeve is connected to the branch cable by a straight terminal, and the locking nut is wrapped with a first filling plastic layer; a Z-shaped terminal is arranged inside the first filling plastic layer, one end of the Z-shaped terminal is coaxial with the locking nut, and the other end is connected to the branch cable; the first filling plastic layer is wrapped with a second filling plastic layer, and one end of the first filling plastic layer and the second filling plastic layer are fixedly connected to a flange and a gland. The assembly process of the present invention includes steps S1-S9, the present invention is fixed to the customer's mechanism by a flange between the client, the construction is convenient, and the customer is convenient to use; the molding process completely fills the gap between the parts, and the electrical performance is better under the same volume; the clamping process is used to realize the power supply of the shielding layer, and the production process is simple and reliable.

The invention relates to the technical field of auxiliary movement devices, and particularly discloses a medical auxiliary movement device for rehabilitation nursing of children, which comprises a frame, the frame comprises a main rod and a cross rod, one end of the main rod is fixedly connected with the middle of the cross rod, the other end of the main rod is fixedly provided with a first connecting pipe, and two ends of the cross rod are fixedly provided with second connecting pipes; a third connecting pipe is fixedly installed at the position where the main rod is connected with the transverse rod. The first wheel structure comprises a rotating rod I, a fork plate I, an axle I and a wheel I; the in-situ riding part is arranged, so that the device can be used movably and can also be used in situ for exercise, different requirements of children in rehabilitation exercise are met, the cushion plate is slidably mounted on the main rod, the foot rest lever is fixedly mounted on the first rotating shaft, the children can ride in a sitting posture or a prone posture, and the sitting posture or the prone posture can be adjusted. The exercise modes can be enriched, and meanwhile children can be prevented from falling down and being injured in the exercise process.

The utility model discloses an electrocardio positioning auxiliary structure which comprises an electrocardio electrode slice, a connecting block is arranged on the upper surface of the electrocardio electrode slice, a guide wire is arranged on the side wall of the connecting block, a thin film protective sleeve is arranged on the side wall of the connecting block, and a spiral connecting opening is formed in the end, away from the electrocardio electrode slice, of the thin film protective sleeve. An extension tube is fixedly connected to the surface of the spiral connector, a needle tube is arranged at one end of the extension tube, a first connecting cylinder is fixedly connected to the surface of the needle tube, a binding tube is fixedly connected to the inner wall of the first connecting cylinder, and an air suction mechanism is arranged on the side walls of the first connecting cylinder and the binding tube; the side wall of the first connecting cylinder is fixedly connected with a fixed cylinder, and a movable block is arranged on the inner wall of the fixed cylinder. When saline water in the needle tube is insufficient, the saline water bottle is punctured through the pricking tube, negative pressure is formed in the pricking tube through the air suction mechanism, the saline water can fall into the needle tube by pulling the movable block, and the head of the needle tube can be prevented from being infected.

The utility model discloses a rain sheltering assembly for building construction. The rain sheltering assembly comprises a contraction mechanism and universal wheels installed at the bottom of the contraction mechanism. A splicing limiting mechanism and a plug pin mounted in the splicing limiting mechanism are arranged on one side of the contraction mechanism; the telescopic mechanism comprises a telescopic rod, the bottom of the telescopic rod is fixedly connected with a universal wheel, the top of the telescopic rod is fixedly connected with a first fixing frame, and the top of the first fixing frame is fixedly connected with a first winding frame; wherein one side of the top of the first winding frame is rotationally connected with a handle, one end of the handle penetrates through the first winding frame and is fixedly connected with a worm, the unfolded nylon cloth can be rapidly wound by arranging the contraction mechanism, and the device is convenient to store; and by arranging the splicing limiting mechanism, the first fixing frame and the second fixing frame can be spliced together, the device is prevented from loosening when folded and stored, and therefore the stability of the device is improved.

The invention discloses a reinforced portable folding six-screen all-in-one machine, and particularly relates to the technical field of computers, the reinforced portable folding six-screen all-in-one machine comprises a case, a first connecting assembly is arranged on the rear side of the case, a first display screen is connected to the top end of the first connecting assembly, and a second display screen and a third display screen are connected to the two sides of the first display screen respectively; a fourth display screen is connected to the rear side of the top end of the first display screen, a fifth display screen and a sixth display screen are connected to the two sides of the fourth display screen respectively, a protective pad is arranged on the back face of the sixth display screen, and a second connecting block connected with the fourth display screen is arranged at the top end of the back face of the first display screen; a third connecting assembly and a second connecting assembly are arranged on the two sides of the front face of the first display screen and the two sides of the front face of the fourth display screen correspondingly, and supporting assemblies are arranged at the connecting positions of the connected display screens correspondingly. By means of the six-screen design, folding can be convenient, the size is small, carrying is convenient, and the use requirements of users are fully met.

The invention discloses laser welding equipment and a protection assembly thereof, and belongs to the technical field of welding, the laser welding equipment comprises a pedestal and a base plate, the base plate is fixedly arranged on the pedestal, an air suction groove is formed in the base plate, four sliding holes are formed in the base plate, and extrusion adjusting devices are slidably arranged in the sliding holes. The annular air outlet frame, the air suction groove and the first fan assembly are adopted, the isolation measure remarkably reduces the influence of dust in an external area on the laser welding process, the cleanliness of the welding area is guaranteed, the design of airflow flowing downwards in the whole device can effectively carry and discharge smoke and dust generated in the welding process, and the welding quality is improved. According to the process, pollutants are removed, separation of a welding area is avoided, continuity and stability of laser welding are ensured, interference of external dust on the welding process is successfully avoided through the airflow control technology, and high quality and high precision of the laser welding process are ensured.

The utility model discloses a fully detachable and washable fabric soft bed, which belongs to the technical field of fabric soft beds and comprises a bed frame, two symmetrically arranged detachable frames are arranged on the bed frame, mattresses are arranged in the detachable frames, a detachable structure capable of separating the detachable frames is arranged in the bed frame, and the detachable frames are arranged on the bed frame. Each splitting structure comprises a motor, a gear located at the output end of the motor and a gear rack which is in sliding connection with the corresponding groove and meshed with the gear, the splitting frames are connected with the gear racks, the motors are arranged to drive the gears to rotate, the gears are meshed with the gear racks to drive the two splitting frames to move mutually, and therefore the mattress can be directly disassembled and washed in the bed frame, and the practicability is high. And the splitting frame does not need to be manually separated or folded, time and labor are saved in operation, and the splitting frame can be prevented from being closed or separated under the action of external force through the self-locking function of the motor.