42results about How to "Prevent extrusion" patented technology

According to the conical spiral bamboo shoot sorting device, bamboo shoots can fall down at a certain position between the two conical spiral barrels according to the sizes of the bamboo shoots in the process of moving from the large ends of the conical spiral barrels to the small ends of the conical spiral barrels under the action of the multiple rotating conical spiral barrels, bamboo shoot sorting is achieved, the automation degree is high, the production efficiency is high, and the production cost is low. And the cost is low. Comprising a plurality of conical spiral barrels with parallel axes, the large end of each conical spiral barrel is located at the front end, the small end of each conical spiral barrel is located at the rear end, bamboo shoot collecting boxes are arranged below the conical spiral barrels, and the bamboo shoot collecting boxes are arranged along the axes of the conical spiral barrels; the bamboo shoots close to the upper portion of the large end of each conical spiral barrel are driven by the rotating conical spiral barrel to gradually move towards the small end of the conical spiral barrel, the bamboo shoots with the large diameter fall into the bamboo shoot collecting box close to the small end of the conical spiral barrel, and the bamboo shoots with the small diameter fall into the bamboo shoot collecting box close to the large end of the conical spiral barrel.

The invention discloses a fiber ring repairing device. The fiber ring repairing device comprises a degradable elastic restraining bag and filler filled in the elastic restraining bag. Space in the elastic constraint bag comprises a positioning space, a supporting space and a limiting space, and the filler comprises first filler and second filler. The first filler is located in the positioning space, fixed in shape to form a positioning part, located on the outer side of the fiber ring crevasse and used for conveying and positioning. Corresponding parts of the supporting space and the limiting space in the elastic constraint bag can be folded under the non-filling condition and then enter the fiber ring crevasse, and then the second filling part flows into the supporting space and the limiting space and forms a supporting part and a limiting part after being solidified. And the part, corresponding to the supporting space, in the elastic constraint bag can be elastically deformed under the filling of the second filler so as to adapt to the shape of the crevasse of the fiber ring. The limiting part is located on the inner side of the fibrous ring crevasse, provided with a limiting face abutting against the inner side wall of the periphery of the fibrous ring crevasse and used for preventing the fibrous ring repairing device from being extruded out of the fibrous ring crevasse by the nucleus pulposus.

The utility model provides an external medicine coating device, and belongs to the technical field of medicine coating. Comprising a rectangular frame and a coating mechanism, a fixing plate is fixedly mounted in the rectangular frame, the coating mechanism comprises a coating wheel, the coating wheel is rotatably mounted on the inner side of the rectangular frame, an extrusion plate is slidably mounted on the inner side of the rectangular frame, a circular plate is mounted outside the coating wheel, and a linkage rod is mounted on the circular plate. A coating wheel is rotationally mounted on the inner side of a rectangular frame, a linkage rod is driven to move through rolling of the coating wheel, then an extrusion plate is driven to move, medicine in a medicine tube can be extruded out through movement of the extrusion plate, the medicine falls onto the outer surface of the coating wheel, and the medicine can be coated on the skin through continuous rolling of the coating wheel on the skin. The ointment can be smeared on the affected part of the skin, manual smearing is not needed in the ointment smearing process, the hand is effectively prevented from being infected, meanwhile, the use cost is reduced, and use is convenient.

The utility model discloses a top cover support, a top cover assembly and a battery, the top cover support is applied to the battery, the top cover support comprises two first end parts and a limiting part, and the two first end parts are oppositely arranged along the length direction of the top cover support; the limiting part is connected between the two first end parts, and the inner surface of the limiting part protrudes out of the inner surfaces of the first end parts and can abut against a naked battery cell of the battery; and the inner surface of the first end part and the naked battery core are arranged at intervals. The technical scheme of the utility model can reduce the risk that the plastic bracket extrudes the corners of the naked battery cell and the diaphragm is punctured.

The present application relates to copper nickel ore sorting technical field, specifically for low grade copper nickel ore combined sorting device and process, including heavy plate feeder, the output end of heavy plate feeder is connected with short distance closed belt conveyor, the present application can separate 87.7% of invalid gangue components in advance after the whole set of combined sorting process is put into operation, reduce the material volume of flotation section from the source, the reagent dosage and water and electricity energy consumption are reduced synchronously, effectively reduce the processing cost of low grade copper nickel ore, significantly improve the production profit level of the project, the waste rock produced by sorting is used as underground filling aggregate after fine crushing, which replaces the purchased gobi sandstone raw material, achieves closed loop utilization of solid waste resources, and meets the green mine development and construction guidelines.

A vaginal secretion collecting swab for gynecologic examination relates to the technical field of gynecologic examination and comprises a bottle body, a handle, a flushing assembly, a connecting tube and a swab head, the handle is arranged above the bottle body, the flushing assembly is arranged above the handle, the connecting tube is arranged on the flushing assembly, normal saline is arranged in the flushing assembly and the connecting tube, the lower end of the connecting tube penetrates through the handle, and the swab head is connected with the connecting tube. A swab head is arranged at the lower end of the connecting pipe, and the lower end of the connecting pipe and the swab head are arranged in the bottle body; the vaginal syringe is high in practicability and very convenient to use, the handle and the connecting pipe are arranged in a matched mode, a doctor can sample conveniently, normal saline in the sealing pipe is squeezed out through the squeezing and flushing assembly, vaginal secretions attached to the swab head are flushed away, and collection is convenient; a limiting plate is arranged on the flushing assembly, so that normal saline is prevented from being squeezed out when vaginal secretion is collected.

The present invention discloses a bait pulling tray structure and an assembly method that are convenient to seal, comprising a base, a glue ring and an upper cover; a accommodating groove is formed by an integral downward concave arrangement of the periphery of the bottom of the installation cavity; the glue ring is arranged on the bottom surface of the installation cavity and is located on the side of the inner side of the accommodating groove; the side plate extends downward into the accommodating groove and is surrounded by the accommodating groove to form an accommodating space for glue to enter; and the glue ring is cooperated with the glue ring to enter the accommodating space by rotating, so that during the assembly process, the upper cover can be installed in place first, and then the glue ring on the inner side of the accommodating groove is rotated into the accommodating space and fills the connection between the side plate and the accommodating groove, avoiding the formation of a sealed space first inside during the assembly process and squeezing out the glue due to air pressure problems, thereby ensuring the sealing performance of the bait pulling tray after assembly, avoiding external moisture from entering the interior of the bait pulling tray during subsequent use, and providing users with a better experience.

The utility model discloses a battery cell. The battery cell comprises a pole piece and a diaphragm, comprising a pole piece and a diaphragm, the diaphragm and the pole piece are stacked, the pole piece and the diaphragm are wound along the same direction and respectively comprise a corner area formed during winding, and an electrolyte expansion layer is arranged on the surface of at least one side of the corner area of the diaphragm, is supported between the corner area of the diaphragm and the corner area of the pole piece and is used for supporting a gap for electrolyte to flow. According to the technical scheme, the electrolyte expansion layer is arranged in the corner area of the diaphragm, so that the lithium precipitation phenomenon in the corner area of the battery cell can be effectively improved. The electrolyte expansion layer expands after being infiltrated by the electrolyte and can be supported between the diaphragm and the corner area of the pole piece, so that a gap for the electrolyte to flow is formed between the diaphragm and the corner area of the pole piece, and the gap can be used for buffering the volume change of the pole piece and can also prevent the electrolyte from being extruded out, thereby avoiding lithium precipitation at the corner of the battery cell and prolonging the service life of the battery cell. The cycle stability and the service life of the battery cell are improved. In addition, the utility model also discloses a battery and an electric device.

The utility model belongs to valve technical field relates to a five -way ball valve with good sealing effect, including valve body, the inlet and the outlet of valve body all are equipped with the connecting pipe, the peripheral surface of connecting pipe is equipped with flange near the pipe orifice, the nut for connecting the pipe fitting is covered on the connecting pipe, the connecting pipe is covered with the sealing ring of cross section is L type, the outer periphery of small diameter section of sealing ring is equipped with the sealing lip towards its major diameter end, the two end faces of major diameter end of sealing ring are equipped with a plurality of concentric lines, the inner wall of sealing ring is equipped with annular limit slot, the outer periphery of connecting pipe is equipped with the limit block of clamping in limit slot. Through L type sealing ring can realize pipe fitting end surface and peripheral surface double seal, ensure the sealing effect of valve, the limit slot and the limit block cooperate with each other, can prevent sealing ring from being extruded.

The application discloses an attraction valve, a handle and an endoscope, and relates to the technical field of medical devices. The attraction valve is used for the endoscope, and the attraction valve comprises a valve body, a valve cap, a valve rod, a pressing piece and a blocking piece. The valve cap is connected with the valve body, and a valve cavity is defined between the valve cap and the valve body. The valve cap is provided with an atmosphere hole which is in communication with the valve cavity. The valve rod is connected with the valve cap and is movably arranged in the valve cavity to switch between a closed position and a suction position. The pressing piece is movably arranged relative to the valve rod. The blocking piece is connected with the pressing piece and moves with the pressing piece to block or move away from the atmosphere hole. A buffer stroke is arranged between the pressing piece and the valve rod. After the pressing piece drives the blocking piece to block the atmosphere hole, the pressing action is transmitted to the valve rod to drive the valve rod to move from the closed position to the suction position. The above scheme can solve the problem that the attraction valve of the related endoscope is prone to leaving residual suction objects at the atmosphere passage.

The present invention discloses a bone implant assisting device, which relates to the technical field of medical devices and comprises: a pressure plate, a connecting handle and a sleeve, wherein the pressure plate and the sleeve are respectively connected to the two ends of the connecting handle and are arranged opposite to each other; the pressure plate is used to block the inner opening of the bone tunnel, the two ends of the sleeve are open and one end of the sleeve is used to align with the outer opening of the medullary canal, and the other end of the sleeve is used to extend into a pressing rod, so when the device is used to assist in pressing bone implanting, the bone implanting material can be prevented from being squeezed out from the inner opening of the bone tunnel, thereby the bone implanting material and the host bone can be pressed and compacted together well.

The invention discloses a screw extruder with an alarm function, and relates to the technical field of extruder alarms, the screw extruder comprises a shell and a driving module which are arranged on a screw extruder body, a machine barrel is arranged in the shell, a screw body is arranged in the machine barrel, and a feeding port is formed in the top of the machine barrel. When the extrusion opening is blocked, the blockage can be detected in time, an alarm is given through the alarm, the extrusion efficiency and quality are ensured, and meanwhile, the outlet of the extrusion opening can be blocked and sealed, so that more unqualified materials are prevented from being extruded, and the waste of the materials can be avoided; besides, before the raw materials are fed into the feeding port, waste heat of the extrusion port can be used for preheating the raw materials, meanwhile, the raw materials are heated and softened, impurities which cannot be heated and softened in the raw materials can be conveniently removed, normal operation of the screw extruder body is guaranteed, meanwhile, the probability that the extrusion port is blocked can be reduced, and the production efficiency and effect are guaranteed.

The present application relates to the technical field of industrial robot spare parts, in particular to a mute type ball nut noise reduction structure for an industrial robot and a method thereof, comprising a mute sleeve set on the outside of a lead screw, the mute sleeve comprising a nut, a bushing mounted on the nut, and a plurality of balls. The mute sleeve is further provided with a filler, the filler comprising a filler tube with a grease storage cavity inside, and a pair of lifting rings, a rotating plug, and an extrusion part coaxially arranged inside the filler from top to bottom. The present application applies continuous pressure on the lubricating grease in the grease storage cavity through the extrusion part, cooperates with the material passage gap in the convex rod which is in contact with the thread groove of the lead screw, realizes continuous and uniform coating of the lubricating grease to the thread groove of the lead screw, and automatically brings the lubricating grease to the ball load track and the circulation channel with the rotation of the lead screw and the movement of the nut, realizes continuous self-lubrication without manual intervention, and effectively reduces the friction noise caused by insufficient lubrication.

The utility model relates to a device of crushing technology field, and disclose a kind of cutting and crushing device for limestone processing, including jaw crusher frame, receiving table and vibrating feeder, the rear end of jaw crusher frame is fixedly installed with receiving table, eccentric shaft is rotatably installed on jaw crusher frame, electromagnetic clutch is installed on eccentric shaft in the right side near, the right end of electromagnetic clutch is provided with main pulley, the upper end of receiving table is rotatably installed with roll shaft in the left and right sides near, conveying belt is installed between the outside of roll shaft, uniformly distributed sieve slot is provided on the inclined plate position of vibrating feeder, irregular baffle is fixedly installed on vibrating feeder in the front end near discharge port.The device can effectively remove soil in limestone, ensure the normal discharging of limestone, and the on-off state of electromagnetic clutch can be controlled to start and stop the conveying belt, which can be used flexibly according to actual conditions and effectively reduce energy consumption.

The utility model discloses an encrusting machine and relates to the technical field of food processing. The full-automatic encrusting machine comprises a feeding mechanism, an encrusting mechanism, a knife passing structure and a rack, a feeding mechanism, a stuffing wrapping mechanism and a knife passing structure are respectively mounted on the rack; the feeding mechanism comprises a flour hopper, a stuffing hopper and a feeding pipe; the flour hopper and the stuffing hopper are communicated with the two sides of the stuffing wrapping mechanism; the stuffing wrapping mechanism comprises a stuffing wrapping pipe, an inner stuffing pipe, an oil seal structure and a material pressing ring structure; the stuffing wrapping pipe is in clearance fit with an inner stuffing pipe; one side of the inner stuffing pipe is communicated with a stuffing guide block; the stuffing wrapping pipe is provided with a wrapper feeding hole, and the stuffing guide block and the wrapper feeding hole are respectively communicated with an outlet of the feeding pipe; a material pressing ring structure is also assembled in the encrusting pipe, and an oil seal structure is assembled at the material pressing ring structure of the encrusting pipe; a knife passing structure is assembled at the bottom of the encrusting mechanism; and a driving mechanism is mounted on the rack. Through the structural design effect of the encrusting mechanism, the encrusting machine has the advantages of guaranteeing the cutting effect and the hygienic standard and safety quality of food.

This invention provides a graded embolization protection device, belonging to the field of vascular interventional medical device technology. The device includes a delivery guidewire, with multiple protection units fixedly arranged at intervals at the distal end of the guidewire. Each protection unit has a proximal open end and a distal closed end, and each protection unit has a flexible support frame for support at a target location. Multiple open areas are formed on the support frame, and a soft, elastic filter membrane is arranged on the edge of each open area or on the sidewall of the entire support frame to cover the open area. In use, the multiple protection units are axially deployed graded along the target location, with the flexible support frame of each protection unit fully conforming to the inner wall of the blood vessel, and the soft, elastic filter membrane intercepting emboli in the blood flow. This addresses at least the technical problems of existing embolization protection devices, such as poor flexibility due to the high coverage of the rigid support structure, difficulty in adapting to complex vascular morphologies, and poor fit with the vascular wall, leading to embolism escape.

This application discloses a sealing gasket and an electrolytic cell, relating to the field of electrolytic cell technology. The sealing gasket includes a skeleton and an elastic portion. The skeleton is annular, with its central axis extending along a first direction. The elastic portion is fixedly connected to the skeleton and includes two abutment layers, which are respectively disposed on opposite sides of the skeleton in the first direction. The skeleton is embedded in the abutment layers, or the abutment layers are embedded in the skeleton. The technical solution provided by this application aims to improve the structural strength of the sealing gasket, thereby ensuring the sealing performance of the electrolytic cell.

The utility model relates to food detection technical field, and disclose a walnut milk food detection sampling device with protection structure, including sampling cylinder, the inside slide of sampling cylinder is equipped with the sealing plug, the middle part of sealing plug top is equipped with the vertical rod fixedly, the top of sampling cylinder is equipped with the top plate fixedly, the top of top plate is equipped with the guide limit component that guides and limits vertical rod, the bottom of sampling cylinder is equipped with the slide, the bottom of sampling cylinder is connected with sampling tube threadedly, through setting sampling tube at the bottom of sampling cylinder, can be accurate sampling to deep sample or specific depth sample, the bottom of sampling tube can be blocked up through the plug, avoided the storage and sampling process exposure to air, introduced the microorganism, dust and other pollutants in environment, leading to sample distortion, through the sampling tube is immersed in walnut milk, utilize slideboard to promote elastic support component, can make the plug leave sampling tube.

The utility model discloses a kind of knife dies for eliminating filmless paper die cutting scrap edge, comprising: die holder, the die holder is opened with multiple forming areas, the forming area is provided with ring cutter, the inside of the ring cutter is provided with and the first elastic member matched with ring knife cutting shape, outside is provided with second elastic member, the first elastic member and second elastic member are used to pop out blanking after ring cutter cutting. By dividing the blade angle into two sections, the knife die life is ensured, and the blade position is avoided to squeeze the material, the edge of the part is improved, the die cutting knife edge is not uneven, the sufficient blade height ensures the vertical pressure during cutting, and sufficient buffer is provided for the paper to avoid wrinkles.

The invention provides an electronic expansion valve connecting structure. The electronic expansion valve connecting structure comprises a coil assembly and a valve body assembly. The coil assembly comprises a shell, and a coil assembly, a connecting piece and a sealing piece which are integrally injection-molded in the shell; a valve body mounting cavity is formed in the shell in the axial direction; the coil assembly is distributed in the shell in the circumferential direction of the valve body installation cavity. The connecting piece is connected with the coil assembly, and a positioning bulge is arranged on the connecting piece; a positioning clamping groove is formed in the peripheral wall of the valve body assembly; the sealing piece is arranged at a cavity opening of the valve body mounting cavity and comprises an embedding part and a sealing part which are integrally formed; the embedded part is coated and injection-molded in the shell, and the sealing part is inwards exposed out of the inner wall of the valve body mounting cavity in the radial direction. The structure has the advantages that the coil assembly, the connecting piece and the sealing piece are integrally arranged in the shell in an injection molding manner, so that the number of parts and the material cost are reduced; and the positioning bulge on the connecting piece is matched with the positioning clamping groove in the valve body assembly, so that an external connecting plate is omitted, and the cost and the assembly complexity are reduced.

The present invention relates to a multi-station capping device and method, including an upper capping assembly, a vacuum chamber assembly and a tray assembly; the upper capping assembly includes a capping cylinder fixedly installed on a cylinder bottom plate, a travel guide rod installed between the cylinder bottom plate and a pressure rod fixing plate, and a plurality of pressure rod parts are evenly arranged on the pressure rod fixing plate; the pressure rod part includes a telescopic column, a sleeve and a spring connected to the sleeve are sleeved on the telescopic column, and a bearing is arranged between the sleeve and the telescopic column. In the multi-station capping device and method provided by the present invention, during the capping process, the capping cylinder is actuated to drive the pressure rod fixing plate to work in conjunction, and the cap is pressed down by the pressure rod part. Due to the different heights of the samples in the sample tube, a height difference is formed. During the pressing process, the tube with a high sample in the sample tube is stressed in advance, the spring is stressed and contracts, the pressure rod part contracts, and the test tube with a low sample in the sample tube continues to be pressed down, ensuring that the samples in the sample tube can be pressed into place at different heights, alleviating the uneven capping caused by the height difference.

The invention relates to a coal slime drying system. The coal slime drying system comprises a spiral conveyor, a roller dryer and a pushing device. Wherein the spiral conveyor comprises a feeding spiral cylinder and a first sealing cylinder; the discharging end of the feeding spiral cylinder extends into the inner cavity of the drying machine through a feeding hole of the roller drying machine; the first sealing cylinder is connected to the discharging end of the feeding spiral cylinder in a sleeving mode, and an exhaust channel is formed between the first sealing cylinder and the feeding spiral cylinder. The pushing device comprises a first driving mechanism and a pushing mechanism; the first driving mechanism is installed on the feeding spiral barrel, the pushing mechanism is connected with the driving mechanism in a matched mode, and the pushing end of the pushing mechanism is arranged in the exhaust channel and is driven by the driving mechanism to move back and forth along the exhaust channel. Stacked materials in the exhaust channel are automatically cleaned through the pushing device, and meanwhile, the angle-adjustable supporting device is installed at the bottom of the rack, so that the concentricity adjustment flexibility of the first sealing cylinder and the inner cavity of the dryer is improved.

The utility model relates to the technical field of cosmetic bottles, and discloses a cosmetic bottle with a silica gel lip gloss head, which comprises a connecting pipe, a fixed circular plate I is fixedly connected to the inner wall of the connecting pipe close to the top, a sliding circular plate is rotatably connected to the bottom of the inner wall of the fixed circular plate I, and a connecting rod is fixedly connected to the front side of the middle of the outer wall of the sliding circular plate. A second fixed circular plate is rotationally connected to the bottom of the sliding circular plate, limiting rods are fixedly connected to the left side and the right side of the bottom of the front side of the outer wall of the second fixed circular plate, liquid inlet holes are formed in the peripheries of the inner walls of the sliding circular plate and the second fixed circular plate, and a silica gel lip gloss head is installed at the top of the inner wall of a connecting pipe. According to the utility model, the fixed circular plate I is fixed on the inner wall, close to the top, of the connecting pipe, meanwhile, the sliding circular plates are rotationally connected to the inner walls of the fixed circular plate I and the fixed circular plate II, and the liquid inlet hole in the fixed circular plate II can coincide with the liquid inlet hole in the sliding circular plate, so that the use requirements are met.

The utility model belongs to concrete detection technical field, concretely relates to a kind of concrete moisture content detection device, this kind of concrete moisture content detection device includes: box, the back surface of the box is close to top end place and is equipped with crushing mechanism, the inside of the box is close to top end place and is equipped with stirring mechanism, the back surface of the box is equipped with feed inlet corresponding crushing mechanism, the inner top of the box is close to back surface place and is equipped with exhaust port, the inner bottom of the box is equipped with weighing assembly, the crushing mechanism includes fixed base, the fixed base is fixedly installed in the back surface of box the inside of the fixed base is close to the front place and is equipped with recess, the back surface of the fixed base extends to recess inside and is equipped with pusher assembly, the inside of the fixed base left and right sides is symmetrically equipped with hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with clamping plate, this kind of concrete moisture content detection device has the effect of improving detection efficiency and practicality.

The utility model relates to an end executive component for an anastomat and the anastomat. The tail end execution assembly comprises a plier head part, a sleeve rotationally connected with the plier head part, a steering long connecting rod capable of driving the plier head part to rotate relative to the sleeve, a push blade inserted into the sleeve in a sliding mode and a push blade protection assembly, and the push blade protection assembly comprises a steering short connecting rod, a first anti-expansion plate and a second anti-expansion plate. The first anti-expansion plate and the second anti-expansion plate are arranged on the two opposite sides of the push cutter blade, the far end of the push cutter blade is clamped between the first anti-expansion plate and the second anti-expansion plate, and the steering short connecting rod and the steering long connecting rod are arranged on the outer side of the first anti-expansion plate and the outer side of the second anti-expansion plate respectively. The problem that the push blade is extruded after the plier head part turns or when the thrust is too large is avoided; the tail end execution assembly is compact in structure, good in stability and high in safety.

The utility model relates to the technical field of coating machines, and provides an impregnated bond paper coating machine which comprises a bottom plate, a moving plate, supporting plates, a gluing shaft, a feeding box, a gluing mechanism and a moving mechanism, a sliding groove is formed in the bottom plate, the moving plate is arranged at the position of the sliding groove in a sliding mode, the supporting plates are fixedly connected to the bottom plate, the gluing shaft is arranged between the two supporting plates, and the feeding box is arranged on the feeding box. The feeding box is arranged between the two supporting plates, the gluing mechanism is arranged on the two supporting plates and used for conducting gluing operation on impregnated paper, and the moving mechanism is arranged on the bottom plate and used for driving the impregnated paper to move. The problems that the extruded glue easily flows out of the impregnated paper and the plates when the plates are laminated, the extruded glue easily adheres a plurality of plates together when the laminated plates are stacked, and the adhesive force of the glue easily damages the impregnated paper adhered to the plates when the plates are separated are solved.

The utility model discloses a quick-change cake decorating head which comprises a dismounting head, the top end of the dismounting head is movably connected with a mounting head, the bottom end of the mounting head is fixedly connected with an insertion pipe, the center line of the mounting head and the center line of the dismounting head are located on the same vertical plane, and the insertion pipe is communicated with the interior of the mounting head. According to the quick-changing type cake decorating head, by arranging anti-skid convex strips, when decorating is carried out and the pattern of decorating needs to be changed, the dismounting and mounting head can be rotated firstly to enable an elastic piece to contract, meanwhile, an arc-shaped clamping block is separated from the interior of a positioning clamping groove and then enters a transition groove, and then the dismounting and mounting head can be directly pulled to be dismounted from the bottom end of the mounting head; after the required mounting and dismounting head is replaced, the mounting and dismounting head is sleeved outside the insertion tube, the elastic sheet rebounds to drive the arc-shaped clamping block to be inserted into the positioning clamping groove so as to position the mounting and dismounting head, and the anti-skid convex strips outside the mounting and dismounting head can improve the protection effect, so that the mounting and dismounting head is convenient to mount and dismount, and the problem that the mounting and decorating head cannot be conveniently detached and replaced is solved.

The present application relates to pen injector technical field, specifically for double cavity adjustable dose pen injector, including intermediate connecting pipe, when one medicine placement shell needs to be injected, one pressing plate is pressed, when the pressing plate falls, one pressing rod, one pressing rod and one piston plate will be driven to fall synchronously, the piston plate will slide down in the medicine placement shell that needs to be injected, and the medicine in the medicine placement shell will be squeezed out and injected into the patient's body, when one pressing rod falls, the blocking block will move to the other end, and the moving blocking block will finally be located below the other pressing rod, at this time, the other pressing rod can be prevented from falling by the blocking block, so that the other piston plate can prevent the liquid in the other medicine placement shell from being squeezed out, so that the patient can prevent the two medicines in the medicine placement shell from being injected at the same time, and the safety and stability of injection are improved.

The utility model discloses a wiring device for electronic connecting wire processing, which comprises a base, an upper side mounting piece and an electric telescopic rod, a support frame is fixedly mounted at the upper end of the base, a handle is fixedly mounted at the upper end of the support frame, a moving groove is formed in the inner end of the base, and a lower side mounting piece is mounted at the inner end of the moving groove in a clamping manner; an upper side pressing piece is fixedly mounted at the inner end of the upper side mounting piece, a T-shaped sliding piece is fixedly mounted at the upper end of the upper side pressing piece, a sliding groove is formed in the outer end of the T-shaped sliding piece in a clamped mode, and an air cylinder is fixedly mounted at the upper end of the sliding groove; according to the wiring device for processing the electronic connecting wire, the side close to the wire is pressed firstly, then the end of the connecting wire is pressed, so that the wire is prevented from being extruded out, the safety and the connecting stability are improved, the structure is compact, the practicability is high, the position can be moved at will, and the wiring device is convenient to use. Usage is flexible and convenient.

This invention proposes a single-shear apparatus and shearing method for uniform shear strain distribution. The shearing method includes installing a shearing assembly, loading the sample into the stack of plates of the shearing assembly, installing a vertical loading device and a shear force loading device, applying a vertical load to the sample to consolidate the sample, installing a left-side sliding limit device, and applying a horizontal load to the consolidated sample for shearing. This invention can precisely control the shearing direction, solve the problem of shear force direction deflection in the prior art, and enable uniform shearing of the sample, ensuring uniform vertical shear strain distribution.