862results about How to "Avoid contact" patented technology

This invention relates to the field of clothes drying rack technology and discloses a concealed double-pole clothes drying rack, including a drive box. A fixing plate is fixedly connected to the top of the drive box, and threaded holes are provided at both the front and rear ends of the top of the fixing plate. Through the first drying assembly, when the concave block pushes the circular block located at the lower left end, the first and second top rods gradually form an X shape. At this time, the first and second top rods lift the first drying rod, and simultaneously lift the sheet or duvet cover draped over the top of the first drying rod, achieving the effect of separating the two types of clothing for drying, avoiding the problem of the sheet or duvet cover coming into contact with the clothes drying below it. Through the concave block, when the insertion rod aligns with the insertion port, the insertion rod will insert into the insertion port under the elastic force of the first spring, thus fixing the position of the first drying rod, solving the problem of where there is nowhere to dry large items such as sheets and duvet covers.

Disclosed are a phosphorus-containing compound, a nonaqueous electrolyte, and a lithium ion battery. In the present application, an additive for a lithium ion battery is provided, the phosphorus-containing compound has a structure shown in formula (I), wherein the R1 and R2 groups are as described in the context of the present application, the phosphorus-containing compound is added in a nonaqueous electrolyte, and the internal resistance of the battery can be significantly reduced, particularly the internal resistance when the battery is fast-charged.

The utility model relates to the technical field of ceramsite sand product pressure detection, in particular to a ceramsite sand product pressure testing machine, which comprises a testing mechanism and is used for a ceramsite sand product pressure test, the testing mechanism comprises a main body assembly, the main body assembly comprises a vertical frame fixed at the top of a rack and cabins fixed at the two ends in the rack, and discharge ports are formed in the inner sides of the bottoms of the cabins; the detection assembly is arranged on the main body assembly and is used for pressure detection; the cleaning assembly comprises a cylinder seat which is slidably mounted at the outer end of the cabin in a penetrating manner, a connecting seat is fixed in the cylinder seat, a connecting rod is pivoted to the outer end of the connecting seat, a handle is fixed to the outer end of the connecting rod, a threaded cylinder sleeve is mounted outside the connecting rod in a threaded manner, a knob is fixed to the outer wall of the outer end of the threaded cylinder sleeve, and a push plate is fixed to the inner end of the cylinder seat; according to the testing machine, chippings are conveniently cleaned and stored through the foldable cleaning assembly, a hydraulic detection system is integrated to accurately measure pressure, a baffle and a limiting frame are matched to prevent chippings from splashing, and the testing machine has high detection efficiency and the space utilization rate.

The utility model relates to a kind of gas power plant equipment information acquisition devices, including hoop and device body, the hoop includes two oppositely arranged, two The hoop is connected by fastener between, and one of two The hoop With The device body is fixedly installed;The device body has inner cavity, and the air inlet of the inner cavity with external space is communicated;Filter screen is slidably installed in the air inlet, the filter screen is connected with the device body by elastic component;Manual collision mechanism is equipped at the side of the filter screen, the manual collision mechanism is installed on the device body, and the filter screen can be driven to slip;Gas detection module is fixedly installed in the inner cavity, has the advantage that the air inlet is blocked by foreign matter to avoid, and the timely, accurate determination of gas detection module to gas leakage condition is influenced.

This utility model relates to the field of knee joint prosthesis technology, and more particularly to a low-wear knee joint replacement prosthesis. The technical solution describes a replacement prosthesis comprising a femoral prosthesis body, a liner body, and a tibial support. The femoral prosthesis body includes an upper femoral prosthesis plate and a lower femoral prosthesis plate, with multiple sets of magnets disposed between the upper and lower femoral prosthesis plates. The liner body includes an upper liner plate and a lower liner plate, with upper and lower liner cavities respectively formed on their adjacent sides, and magnets are disposed within these cavities. The magnetic poles of the adjacent sides of magnets are the same. This utility model optimizes the materials used in the replacement prosthesis, avoiding wear-prone metal particles and thus preventing inflammation. Utilizing the principle of magnetic repulsion, magnetically levitated micro-gap is formed between the prosthesis components, thereby minimizing prosthesis wear and extending its service life.

The utility model discloses a portable laser range finder for land surveying and mapping, which relates to the technical field of laser range finders and comprises a mounting plate fixedly mounted on two sides of the upper and lower end faces of a laser range finder main body. The telescopic supporting legs can be stored outside the laser range finder body when the laser range finder is carried, all parts of the laser range finder are integrated outside the laser range finder body, the carrying space of the laser range finder is reduced, and the laser range finder is more convenient to carry; a protection frame can be formed for the laser range finder body, the impact resistance of the device is enhanced, the telescopic supporting legs are installed, the space occupied by the telescopic supporting legs can be reduced as much as possible under the condition that it is guaranteed that the laser range finder body is supported, the device is smaller and more exquisite, the space occupied when the device is carried is reduced, and the device is more user-friendly.

This invention discloses a shell processing device for microwave oven high-voltage transformer production, relating to the field of transformer shell processing technology. The device includes a shell, inside which a feeding plate is installed. A crushing roller for crushing the shell is positioned above the feeding plate. An adjustment mechanism for assisting in the crushing process is also located inside the shell. Waste material is squeezed by a pressing roller below the mounting plate, facilitating subsequent crushing by the crushing roller. Furthermore, the coordinated movement of a pusher plate and a guide plate ensures the waste material moves evenly and smoothly to the pressing roller for crushing, effectively preventing insufficient contact between the waste material and the crushing roller, thus improving the crushing effect. The sliding plate also pre-processes the waste material to some extent, reducing energy consumption from subsequent pusher plate processing and increasing the utilization rate of the pusher plate.

The utility model discloses a spherical mirror support, including base and support component. The base is equipped with a plurality of insertion hole, is equipped with support piece and clamping piece among the support component, and support piece inserts into the insertion hole, and keeps the upper end and clamping piece connection, is equipped with three clamping arms on clamping piece, and the middle of three clamping arms forms the clamping area, and is equipped with a plurality of clamping arc groove on clamping arm. The spherical mirror support compact structure, clever design, adopts clamping piece and support piece cooperation, forms clamping assembly, and it can realize clamping arc groove and the installation edge cooperation of spherical mirror through setting up a plurality of clamping arc groove on clamping piece, thereby realizes the spherical mirror being limited in clamping arc groove, not only can keep the position of spherical mirror, can also avoid directly with spherical mirror's arc surface contact, avoid the friction to spherical mirror. The setting of support piece and base can be convenient for the placement of support component, also can be convenient for the transfer of multiple spherical mirror.

The application discloses a driving wheel rotating structure, which comprises a rotating mechanism, a mounting plate, a rotating support assembly and a roller assembly, wherein the rotating mechanism comprises a rotating shaft, a gear and a rotating disc, the gear is fixedly connected to the end of the rotating shaft, and the rotating disc is provided with a gear ring which is engaged with the gear; the upper surface of the mounting plate is provided with a second bearing, the lower surface of the mounting plate is provided with a third bearing, and the rotating shaft penetrates through the second bearing and the third bearing; the rotating support assembly comprises a first support seat and at least one first bearing arranged in the first support seat, and the first support seat is located between the mounting plate and the rotating disc; and the roller assembly is fixedly connected with the rotating disc and rotatably connected with the rotating support assembly. The second bearing and the third bearing are arranged to form a double support structure of the rotating shaft, thereby improving the stability of the rotating shaft and avoiding the driving wheel from being stuck during the steering process.

The utility model discloses a dough lifting and dumping device which is characterized in that a lifting machine comprises a machine base and a machine seat, a rotating support is arranged on the lifting machine, a lifting column capable of driving the rotating support to lift up and down is arranged on the lifting machine, and a turnover structure capable of driving the rotating support to rotate is arranged on the lifting column. A noodle barrel is arranged on the vehicle seat, an inserting structure which can be detachably connected with the vehicle seat is arranged on the rotating support, and a vacuum cutting machine is arranged on one side of the elevator; through cooperation of the lifting column and the rotating motor, lifting and overturning of the dough barrel can be automatically achieved, dough is accurately controlled to be poured into a funnel of the vacuum dividing machine, manual pouring is not needed, the dough transferring efficiency is improved, and the waiting time is shortened.

The application belongs to the technical field of metal lithium preparation, and discloses a lithium ingot casting system in a metal lithium closed environment and a lithium ingot casting method. The lithium ingot casting system is used for receiving high-temperature liquid metal lithium after distillation and purification to perform casting, cutting and bagging in a mold. The lithium ingot casting system comprises a glove box and a mold arranged in the glove box. The glove box is provided with a gas circulation module. The glove box is connected with the inside of the glove box by the gas circulation module and controls the gas environment in the glove box. The glove box is provided with at least two independent chambers, i.e. a preparation chamber and an operation chamber. At least one of the preparation chamber and the operation chamber is provided with a buffer chamber connected with the outside for material exchange. The buffer chamber is provided with detachable sealing structures on the ports connected with the outside and the inside for sealing, and the independent gas environment control is realized by connecting the gas circulation module. The mold is arranged in the operation chamber. The mold comprises a cooling support and a plurality of mold barrels arranged on the cooling support. The mold barrels are detachably connected with the cooling support.

The utility model discloses a medicament uniform soaking device for medical antiviral non-woven fabric production, and relates to the technical field of antiviral non-woven fabric production. The medicine uniform soaking device for medical antiviral non-woven fabric production comprises a bottom plate, a drying mechanism used for drying non-woven fabric and a water control mechanism used for removing redundant medicine are installed above the bottom plate, the drying mechanism comprises a flat pipe fixedly installed above the bottom plate, an electric heating plate is fixedly installed in the flat pipe, and the electric heating plate is fixedly connected with the bottom plate. The inner temperature of the tubular structure at the front end is increased through the electric heating plate, the non-woven fabric is dried, high-humidity air in the flat pipe can be pumped out through the air inlet pipe during operation of the air compressor, the situation that the drying efficiency is affected due to the fact that the humidity of the air in the flat pipe is too high is prevented, and the non-woven fabric can be dried after being soaked in the mode; therefore, the situation that in the rolling process, medicine is separated out due to the pressure between the non-woven fabrics in the rolling process is avoided.

A seat cushion body is provided that can properly protect the wiring harness from contacting the seat frame. The seat cushion body (2) that elastically supports the occupant is a structure divided into three parts: a main top plate forming the central part in the width direction of the seat and side top plates (5) forming the two side parts in the width direction of the seat. The side top plates (5) have: a base material (5B) that is assembled to the seat cushion frame (3) from the seat surface side and serves as a support base; a seat cover that covers the base material (5B) from the seat surface side; and a cover (5D) that extends from the inner edge of the base material (5B) in the width direction of the seat. The cover (5D) has: a first hinge formed at its base and a folded-back portion that is folded back from the seat back side to cover the inclined arm (3E) and is fixed to the inclined arm (3E) based on the first hinge.

The utility model relates to traditional Chinese medicine technical field, concretely for a kind of packing plant for traditional Chinese medicine ration, including case, control component, slicing component, feeding assembly, stirring component, output component, packaging component and transmission component;Stirring component is communicated with output component, slicing component and feeding assembly are oppositely arranged stirring component, and packaging component is located at the one end of output component;Stirring component is used for the medicine stirring of slicing component and feeding assembly to be rationed output through control component and output component;Traditional Chinese medicine processing link can be accurately controlled by control component, ensure accuracy, and the quantitative output of medicinal material is realized by the synergic work of control component and output component, the ingenious connection of slicing component and feeding assembly and stirring component makes that medicinal material can be rapidly, uniformly stirred and mixed, improves the consistency of traditional Chinese medicine component, ensures drug quality, and the freshness and medicinal efficacy of medicinal material are maintained by packaging component after rationing, and it is strong in practicality.

This application provides a water-cooled roller fixture for strip conveying, including a protective component, a drive component, a coupling, a water-cooled roller, and a water-cooling assembly. The protective component includes a protective cylinder and a first bearing seat and a second bearing seat rotatably located at both ends of the protective cylinder. The drive component is mounted on the first bearing seat. The coupling is placed inside the first bearing seat. One end of the water-cooled roller is inserted into the protective cylinder, and the other end is rotatably engaged with the first bearing seat. The water-cooled roller is connected to the output shaft of the drive component via the coupling. The water-cooling assembly is used to supply cooling water with a circulating path to the water-cooled roller. The water-cooled roller fixture for strip conveying provided by this application allows the water-cooling assembly to transport cooling water to the space where the water-cooled roller is located, cooperating with the existing forced cooling on the outer periphery of the protective cylinder to simultaneously cool the inside and outside of the protective cylinder. The coupling is placed inside the first bearing seat, isolating it from the outside environment and preventing moisture from contacting the coupling.

The invention provides a recycled asphalt milling and planing material screening device, and relates to the field of asphalt milling and planing material screening equipment.The recycled asphalt milling and planing material screening device comprises a movable base, crawler-type walking mechanisms are arranged at the bottoms of the left side and the right side of the movable base, and an inclined supporting frame is installed on the rear side of the upper portion of the movable base; a vibrating screen classifier is mounted at the top of the inclined support frame; auxiliary dismounting mechanisms are arranged on the left side and the right side of the vibrating screen classifier; expansion type supporting mechanisms are installed on the left side and the right side of the movable base correspondingly, and limiting components are arranged on the outer sides of the expansion type supporting mechanisms. According to the screening device, by arranging the extension type supporting mechanism, H-shaped extension sliding columns and supporting cross rods are pulled outwards, then limiting is rapidly conducted through the auxiliary dismounting and mounting mechanism, then telescopic rods of hydraulic cylinders B are controlled to stretch out downwards, supporting base plates are driven to make contact with the ground, and therefore the whole screening device obtains the reliable extension type supporting effect; the overall stability of the screening device during operation is improved, and the potential safety hazard of overturning is effectively avoided.

The application discloses an easy-to-clean oil-proof PC plate coating structure, which comprises an inner supporting piece one, a plate piece one, a connecting piece, a screw rod, a plate piece two and an inner supporting piece two, the plate piece one and the plate piece two are respectively injection molded on the inner supporting piece one and the inner supporting piece two through a plastic-iron wrapping process, the overall structural strength of the PC plate can be improved, the labor cost in the assembling process is saved, the connecting piece is arranged to achieve the connection and installation of the upper and lower two parts, the connecting piece is independently designed from the plate piece one and the plate piece two, the mold opening cost of the forming mold of the plate piece one and the plate piece two can be reduced, the production and manufacturing cost is lowered, the outer side end surfaces of the plate main body two are coated with oil-repellent coatings, the oil ink can be effectively prevented from adhering to the surfaces, the oil ink emulsification is prevented, and the cleaning is facilitated, when cleaning is needed, the plate piece two and the inner supporting piece two can be integrally detached by unscrewing the screw rod, and the scraper structure can be conveniently cleaned and maintained.

The application discloses a kind of automatic loading and unloading devices of chain plate heating bending, belong to chain plate processing field.The device includes feeding assembly, unloading assembly and transfer assembly, feeding assembly is provided with multiple feeding tables with feeding table, feeding table is rotatably arranged on the surface of base, the surface of feeding table limits chain plate position, and then multiple chain plates can be placed on the surface of single feeding table, when the chain plate on the surface of single position feeding table is pushed by pushing assembly, chain plate can be placed on other feeding table position manually, workers can intermittently carry chain plate, and the labor intensity is relatively lower, simultaneously, chain plate feeding is directly controlled by pushing assembly, and the chain plate feeding demand time is easy to control;And setting unloading assembly sliding on the surface of base, the chain plate after bending is directly unloaded by pushing unloading assembly, without manual removal, realize the automatic unloading of chain plate after bending, reduce the manual intervention link, reduce worker labor intensity and guarantee to maintain chain plate conveying demand time.

This invention discloses a method for producing granules that reduces the loss of active ingredients, relating to the field of granule preparation technology. This method addresses the problem of active ingredient loss in traditional granule production due to high temperatures, oxidation, mechanical friction, and solvent residue. It employs a four-stage process—low-temperature pretreatment, inert gas-protected granulation, gradient drying, and nano-coating and end-capping—combined with the application of a specialized composite binder, significantly improving the retention rate of active ingredients. Experimental data shows that granules produced using this method have a higher retention rate of active ingredients than those produced by traditional methods, while also exhibiting high granule formation rate and dissolution rates that meet relevant standards. The process of this invention is highly stable and widely adaptable, and can be widely applied to granule production in the pharmaceutical, pesticide, food, and feed industries.

The utility model relates to distillation device technical field, and disclose a vacuum distillation device for separation and purification, including vacuum equipment, the vacuum equipment includes vacuum cavity, closing subassembly and vacuum subassembly, the opening of vacuum cavity is connected with closing subassembly through hinged rotation, the rear portion of vacuum cavity is connected with vacuum subassembly through bellow, the inside fixed connection of vacuum cavity has work platform, the upper portion fixed mounting of work platform has heating cage, the upper portion of work platform still installs fixed mould, the inside of fixed mould places distillation flask, fixed mould and distillation flask all are in the inside of heating cage, the raw material in distillation flask is played heating effect to heating cage, this distillation device has with vacuum equipment and separates the distillation raw material, avoids the dampness inside vacuum container, is convenient for vacuum subassembly to draw a vacuum to improve distillation separation efficiency.

The utility model discloses a kind of foam blocking devices for indirect evaporative cooling unit liquid level sensor, including blocking component and auxiliary assembly, blocking component includes foam blocking cover, blocking part one and blocking part two, auxiliary assembly includes adjusting component and mounting component, by blocking component and auxiliary assembly cooperation, can effectively block foam, prevent foam contact liquid level sensor's probe, improve measurement accuracy, the structure design of device side plate bottom hole ensures that liquid flows freely, does not affect the normal work of liquid level sensor, and the device structure is simple, easy to install, applicable to various liquid level sensors.

The utility model discloses a kind of corrosion-resistant seamless steel pipes, the utility model relates to the technical field of seamless steel pipe, including seamless steel pipe main body, the outer part of seamless steel pipe main body is equipped with outer moisture-proof sheath, moisture-absorbing cotton is arranged between outer moisture-proof sheath and seamless steel pipe main body, one end of seamless steel pipe main body is equipped with flange plate one, the upper and lower sides of one end of seamless steel pipe main body are all set limit component, and limit component is connected with flange plate one by clamping piece. By setting outer moisture-proof sheath and moisture-absorbing cotton, it can protect seamless steel pipe main body, avoid seamless steel pipe main body and external rainwater contact, avoid seamless steel pipe main body long time and water contact and be corroded, affect the use of seamless steel pipe main body;Through the cooperation of connecting piece of limit component, connecting component makes the both ends of seamless steel pipe main body can be more conveniently and tightly connected with other seamless steel pipe main body through flange, can make the utility model use more convenient.

The invention relates to a light-weight pressure-maintaining gas-maintaining coring device for a deep coal mine and a using method, the coring device comprises an outer pipe, a center rod, a core barrel, a pressure-maintaining controller, a clamp spring and a core falling prevention device, the lower end of the outer pipe is connected with a coring drill bit, the lower end of the center rod is connected with the core barrel, and the core falling prevention device and the clamp spring are installed at the lower end of the core barrel; the core falling prevention device is positioned below the clamp spring and above the coring drill bit; the core falling prevention device comprises a plurality of discs arranged in the circumferential direction and an elastic piece used for driving the multiple discs to be folded and closed towards the middle. The core falling prevention device is added, so that the equipment has a core falling prevention function, and when the rock core is broken by the snap spring, the core falling prevention device can effectively prevent a coal sample from falling out of the rock core barrel, and the heart taking rate is increased.

The utility model discloses a hanging rope assembly and terminal equipment, the hanging rope assembly comprises a first sliding fastener, a second sliding fastener, a hanging rope and a connecting rope, the first sliding fastener is provided with a first channel, the second sliding fastener is provided with a second channel, the hanging rope is provided with a hanging section used for being hung on a wearing part of a wearer, and the connecting rope is connected with the hanging section. The two ends of the hanging rope extend to the first side of the first sliding fastener through the first channel and are connected with the second sliding fastener, the connecting rope is provided with a connecting section used for being connected with the mobile terminal, at least one end of the connecting rope extends to the first side of the second sliding fastener through the second channel and is connected with the first sliding fastener, and the position of the hanging rope relative to the first channel is adjustable. And the position of the connecting rope relative to the second channel is adjustable so as to change the length of the connecting section. The rope length adjusting process can be simplified, and rope length adjustment is facilitated.

The utility model discloses a stepping motor winding insulation device, which relates to the technical field of stepping motors and comprises a stator shell, stator iron cores are arranged on the inner side of the stator shell in an annular array mode, a winding insulation frame is arranged on the outer side of each stator iron core, and the winding insulation frame is arranged on the outer side of the stator shell. A stator coil is wound on the winding insulating frame; the winding insulation frame comprises two symmetrically-arranged arc-shaped outer frames, arc-shaped inner plates are integrally arranged at the bottoms of the arc-shaped outer frames, and bent baffles are integrally arranged on the two sides of each arc-shaped inner plate. An iron core slot is formed in the arc-shaped outer frame, the arc-shaped outer frame is sleeved on the outer side of the stator iron core, and the stator iron core penetrates through the iron core slot; according to the utility model, the two sides of the plugging transverse plate are inserted into the limiting clamping grooves, and the insulating vertical plate is positioned between the two stator coils, so that short circuit between the two stator coils is prevented, and the insulating effect on the winding is further improved.

The utility model discloses an ultra-thin multilayer silica gel braided tube, which relates to the technical field of silica gel braided tubes and comprises a silica gel braided tube body, a connector assembly is arranged at one end of the silica gel braided tube body, a butt joint assembly is arranged at the other end of the silica gel braided tube body, and the connector assembly is matched with the butt joint assembly. The silica gel braided tube body comprises a pipeline body, an anti-sticking layer is arranged on the inner wall of the pipeline body, and the anti-sticking layer is used for preventing adhesion between the inner wall of the silica gel braided tube body and a conveying medium; the butt joint assembly comprises a second connecting cavity tube fixedly connected to one end of the silica gel braided tube body; the connector assembly comprises a first connecting cavity tube fixedly connected to one end of the silica gel braided tube body, and a positioning rod is fixedly connected to one side of the first connecting cavity tube, so that the silica gel braided tube bodies, the connector assembly and the butt joint assembly are matched together, and the two silica gel braided tube bodies can be quickly assembled and disassembled; the working efficiency of the device is improved, and the requirements of more customers are met.

The utility model discloses a kind of non-woven fabric antistatic treatment equipment, it is related to non-woven fabric relevant field, and it includes: non-woven fabric is placed in the end of storage rack, storage rack is fixedly connected in the back of first cloth guide roller frame, first cloth guide roller frame is fixedly connected in the rear end of mounting table, and mounting table front end is equipped with second cloth guide roller frame and cloth reel, and mounting table middle part is equipped with dip process mechanism, and dip process mechanism is fixedly installed in the middle part of mounting table, and the top of dip process mechanism is equipped with top cover, and the inside of dip process mechanism upper portion is equipped with top stirring mechanism, and the inside of dip process mechanism bottom is equipped with bottom stirring mechanism, by setting top stirring mechanism and bottom stirring mechanism in the inside of dip process mechanism top and inside bottom, reciprocating stirring is carried out to antistatic agent, antistatic agent stratification is forced to break, ensure that the concentration of antistatic agent in each position in dip process mechanism is consistent, avoid that non-woven fabric different section contacts different concentration antistatic agent.

The invention relates to the technical field of skin care, and discloses a sustained-release composition containing azelaic acid composite lipidosome and application of the sustained-release composition in acne treatment and skin repair. Comprising a composite liposome, an encapsulated active component and a dispersion medium, the composite liposome is composed of a lipid bilayer, the lipid bilayer comprises phospholipid, cholesterol and pegylated phospholipid, and the phospholipid is a mixture of hydrogenated soybean phospholipid and dipalmitoyl phosphatidylcholine; the encapsulated active component comprises a fat-soluble component and a water-soluble component; the water-soluble components comprise a hamamelis virginiana leaf water extract and a herba portulacae extract; the dispersion medium is a phosphate buffer solution; by optimizing lipid composition, introducing surface modification and constructing a multi-layer release system, the invention aims to synergistically exert multiple effects of antibiosis, anti-inflammation, cutin regulation, red fading, repair and the like, and provides an efficient, mild and integrated solution for acne and sequelae skin problems thereof.

The utility model discloses a novel puncture device, which relates to the technical field of ultrasonic medicine and comprises a support frame body, an ultrasonic intervention head component is arranged at one end of the support frame body, a storage box is fixed at the other end of the support frame body, a stud is rotatably connected in the storage box, and guide columns are symmetrically fixed on the inner side of the storage box and on the outer side of the stud. A carrying seat is slidably connected between the two guide columns, and a puncture needle body is placed on the inner side of the carrying seat; a first L-shaped sealing cover and a second L-shaped sealing cover are arranged on the outer side of the storage box, and limiting guide rods are fixed to the upper end and the lower end of the inner side of the first L-shaped sealing cover and the upper end and the lower end of the inner side of the second L-shaped sealing cover correspondingly. According to the novel puncture device provided by the utility model, through the integral structural matching design, a closed environment can be provided for the puncture needle body for storage when the puncture needle body is not used, so that external impurities and operators are effectively prevented from being in contact with the puncture needle body, and the pollution or infection risk of the puncture needle body is greatly reduced.