62results about How to "Elastic recovery" patented technology

The present invention provides a surface-coated cutting tool comprising a coating film on a base, while the coating film comprises a hard layer constituted of a compound selected from a nitride, a carbonitride, an oxynitride and a carboxynitride of at least one primary element selected from a group consisting of the metals belonging to the groups 4a, 5a and 6a of the periodic table as well as B, Al and Si, and the hard layer satisfies the following: (a) (hmax−hf) / hmax is at least 0.2 and not more than 0.7, assuming that hmax represents the maximum indentation depth and hf represents the indentation depth (dent depth) after unloading in a hardness test according to nanoindentation, (b) the thickness of the hard layer is at least 0.5 μm and not more than 15 μm, and (c) the hardness according to nanoindentation is at least 20 GPa and not more than 80 GPa.

The present invention provides a surface-coated cutting tool comprising a coating film on a base, while the coating film comprises a hard layer constituted of a compound selected from a nitride, a carbonitride, an oxynitride and a carboxynitride of at least one primary element selected from a group consisting of the metals belonging to the groups 4a, 5a and 6a of the periodic table as well as B, Al and Si, and the hard layer satisfies the following: (a) (hmax−hf) / hmax is at least 0.2 and not more than 0.7, assuming that hmax represents the maximum indentation depth and hf represents the indentation depth (dent depth) after unloading in a hardness test according to nanoindentation, (b) the thickness of the hard layer is at least 0.5 μm and not more than 15 μm, and (c) the hardness according to nanoindentation is at least 20 GPa and not more than 80 GPa.

A quick installed joint assembly includes a fitting body, a sleeve, and an inlet pipe. One end of the chamber of the body communicates with a water supply pipeline, and the other end communicates with an accommodation part and passing through the fitting body. The sleeve is disposed within the accommodation part and has stopper portions. Each stopper portion has a wedge-like portion and a hook portion is extending outwardly from the wedge-like portion. The body has plural openings corresponding to each stopper portion, so that one end of the inlet pipe can pass through the sleeve and be inserted within the chamber. The inlet pipe corresponding to the bottom edge of the stopper portion has a large diameter portion for leaning against on the stopper portion, so the hook portion can be hooked on the openings and the inside wall of the accommodation part can support the wedge-like portion.

A stretchable sweatband with enhanced stretchability and improved wearing comfort, and a headwear in which the stretchable sweatband is applied are disclosed. The headwear includes a head covering portion being worn on a head of a wearer, a visor portion coupled with the head covering portion, and a sweatband coupled at an interior side of the head covering portion, wherein the sweatband is made of a fabric of two overlapped sections connected one another when it is cut perpendicularly to a lengthwise direction, the fabric being woven by pluralities of warp and weft yarns crossing one another.

Described herein is a wound dressing comprising: a composite island configured to collectively exhibit substantially elastic recovery under wound treatment conditions and comprising a foam layer and an absorbent layer coupled to the foam layer, the foam layer exhibiting substantially elastic recovery under wound treatment conditions and the absorbent layer not exhibiting substantially elastic recovery under wound treatment conditions; a backing layer having a margin that extends beyond the composite island; and an adherent layer disposed on at least the margin of the backing layer. In addition, described herein is a method of eliminating, minimizing, or reducing edema for a wound surrounded by tissue, by positioning the wound dressing over the wound, optionally such that at least a portion of the adherent layer contacts the tissue.

The invention relates to the technical field of keyboard manufacturing and inspection, and further discloses computer keyboard microchip detection equipment including a sliding groove; a lifting rod is connected to the sliding groove in a sliding manner; the lower end of the lifting rod is fixedly connected with a push plate; a sliding rail is arranged on the surface of the push plate; the surfaceof the sliding rail is slidably connected with a supporting frame. An elastic rod is movably connected into the supporting frame. A detection shell is fixedly connected to the bottom of the supporting frame, a rubber storage bag is movably connected to the interior of the detection shell, a pressure applying plate is movably connected to the surface of the rubber storage bag, a feeding pipe is movably connected to the bottom of the rubber storage bag, an electromagnet is fixedly connected to the surface of the feeding pipe, and an electric block is fixedly connected to the bottom of the detection shell. The glue in the rubber storage bag is extruded to flow to the surface of the feeding pipe under the pressure of the rubber storage bag, and then flows into the liquid flow groove under theaction of gravity, so that the point measuring rod is separated from the microchip, the glue drops on the surface of the microchip, and the effect of completing the detection gluing work without transferring is achieved.

The shock insulating apparatus for house includes one top plate for the house to be built on, one under plate, and supporting steel bars or pipes. The top plate and the under plate of reinforced concrete can bear the house load; and the supporting steel bars or pipes are set between the top plate and the under plate integrally. The shock insulating apparatus has its side shift regulating rigidity between the top plate and the under plate regulated through altering the diameter and length of the supporting steel bars or pipes. Under the action of earthquake load, The top plate and the under plate generate relative shift to reduce the earthquake effect on the upper structure. The present invention has high shock insulating effect, and the supporting steel bars or pipes has elastic restoring force sufficient to restore the steel bars or pipes to initial locations after earthquake.

The invention discloses a flexible conductive fabric. The flexible conductive fabric comprises a fabric and a weaving plied yarn, the weaving plied yarn is formed by mixing a conductive wire and a non-conductive wire, and the non-conductive wire is used for fixing the conductive wire on the surface of the fabric in a form with a certain bending capability, so that the fabric and the weaving plied yarn are simultaneously stretched and reset, and the conductivity is kept unchanged. According to the flexible conductive fabric capable of electrifying the conductive wires, the conductive wires have certain elastic recovery performance through the preset arrangement mode, and the conductive wires can be more flexibly applied to wearable equipment. The flexible conductive fabric adopts the continuous conductive wires, so that the resistance is stable, and stable data transmission can be realized. The flexible conductive fabric is skin-friendly and non-inductive, after the conductive wires are combined with the fabric through process treatment, the flexible conductive fabric has good skin-friendly performance and is suitable for daily wearing, and then support is provided for the intelligent wearable technology.

The invention discloses a whey protein cream capable of restoring skin elasticity. The whey protein cream comprises glycerol, butanediol, decanoyl / octanoyl-glycerides,poly[oxy(dimethylsilylene)], decamethylcyclopentasiloxane, cetanol, sterin, PEG-75 stearate, POE (20) isohexadecyl ether, steareth-20, jojoba seed oil, tocopherol, avocado tree grease, avocado oil, Argania spinosa kernel oil, whey protein, elastin, hydrolytic collagen, polysorbate 20, sodium hyaluronate, hydrolyzed cocoon fiber, serine, Saussurea involucrata extract, lecithin, Atelocollagen, hydrolyzed plant protein, phenoxyethanol, carbomer, triethanolamine, 1,2-octanediol, ethylhexylglycerin, essence, CI 13015, CI 15580, iodopropynyl butylcarbamate and the balance of deionized water. The combination of the micro-grease-capsule-coated elastin, hydrolyzed cocoon fiber, hydrolyzed collagen, whey protein and Atelocollagen is added into the moisturizing formula, so that the whey protein cream can moisturize the skin and restore the skin elasticity.

The invention discloses a three-dimensional papermaking felt and a making method thereof. The three-dimensional papermaking felt comprises a surface flocking layer, an upper-layer base cloth layer, a lower-layer base cloth layer and a reverse-side flocking layer, wherein the lower-layer base cloth layer comprises a warp thread sub-layer and a weft thread sub-layer which are vertically stacked, and the warp thread sub-layer and the weft thread sub-layer are fixed through binding lines to form the lower-layer base cloth layer. The three-dimensional papermaking felt is characterized in that the warp thread sub-layer and the weft thread sub-layer are not provided with weaving points and are fixed through the binding lines to form a whole, the third dimensionality is increased spatially, so that the warp thread sub-layer and the weft thread sub-layer form a three-dimensional woven fabric, the structural stability and crushing resistance of the felt in the whole three-dimensional direction are increased, and the three-dimensional papermaking felt has elastic restoration, pressure microcosmic uniformity and uniform dehydration property, does not easily deform, is long in service life, easy to clean and free of felt marks and can meet the demands of various papermaking machines.

The invention discloses a prestressed reinforced membrane structural body and a combined type prestressed reinforced membrane structural body. The prestressed reinforced membrane structural body comprises a capsule body, a flexible reinforced framework and annular rigid components, wherein the content of the capsule body is a fluid, the annular rigid components are correspondingly arranged at theperiphery of the corresponding end parts of the capsule body, the flexible reinforced framework is arranged outside the capsule body, when the flexible reinforced framework comprises flexible cables,the flexible cables are arranged along the direction of a plain wire or a lead of the capsule body, or is wound around the periphery of the capsule body in a staggered manner, or is arranged in a mixed mode of the plain wire and the lead, the intersection points of the flexible cables arranged along the plain wire of the capsule body and the flexible cables wound around the periphery of the capsule body in the staggered mode are connected by using nodes capable of transmitting force, and the outline size of the capsule body filled with the fluid is larger than the outline size of the flexiblereinforced framework formed by the flexible cables, and when the flexible reinforced framework comprises flexible fiber cloth, the fiber cloth completely wraps around the capsule body. The prestressedreinforced membrane structural body and the combined type prestressed reinforced membrane structural body have the advantages of being light in weight, portable, convenient to install and uninstall,high in bearing capacity and rigidity and high in impact-resistant strength.

The invention relates to the technical field of network control equipment and discloses network control equipment protected by using the data line length. The network control equipment comprises a boxbody, wherein a sliding groove is fixedly connected with the interior of the box body, a surface of the sliding groove is slidably connected with a socket, a spring plate is movably connected into the socket, a wire groove is movably connected with a surface of the spring plate, a telescopic rod is movably connected with an end, away from the spring plate, of the wire groove, a guide plate is movably connected with a surface of the telescopic rod, the telescopic rod is hinged to an end, away from the wire groove, of the spring plate, a gear is movably connected with the other end of the telescopic rod, and a screw is movably connected with a surface of a gear. The network control equipment is advantaged in that a data line is inserted into a socket, so the spring plate is extruded, the spring plate is extruded to transmit force to the surface of the telescopic rod, the telescopic rod pushes the gear to rotate, the interior of the spring plate gets close, a closing ring is pushed to beclosed, the closing ring is kept still, and the effect of closing and protecting a non-working socket is achieved.

The invention provides a lentivirus kit refrigerating box for a clinical laboratory department, and relates to the field of kits. The lentivirus kit refrigerating box for the clinical laboratory department comprises a box body, a plurality of drawing boxes which are randomly placed in cavities in a one-to-one correspondence manner; a plurality of left half box frames and right half box frames, supporting plates which are correspondingly arranged at the bottoms of the left half box frames and the bottoms of the right half box frames; a stretching mechanism and a binding mechanism which are used for achieving the traction effect on a pull rope; and a coating mechanism which is arranged at the end, far away from the hinge seat, of any supporting plate. According to the lentivirus kit refrigerating box for the clinical laboratory department, an operator can conveniently place reagent bottles on the placement plates, the distance between the left half box frame and the right half box frame and the pulling boxes at the top is increased, so that cold air in the box body can be rapidly diffused into each pulling box, the cold and heat transfer rate is increased, and the better heat preservation effect is achieved.

The present invention relates to a polycarbonate diol comprising a structural unit derived from a compound represented by the following formula (A) and a structural unit derived from a compound represented by the following formula (B), wherein the hydroxyl value is from 20 to 450 mg-KOH / g: [Chem. 1] HO-R 1 -OH (A) HO-R 2 -OH (B) the glass transition temperature of said polycarbonate diol as measured by a differential operating calorimeter is -30DEG C or less and the average carbon number of a dihydroxy compound obtained by hydrolyzing said polycarbonate diol is from 3 to 5.5.

The invention discloses a medical purification plate. The medical purification plate comprises a purification plate main body, wherein and a left connecting plate and a right connecting plate are arranged on the left side and the right side of the purification plate main body correspondingly; a positioning block is arranged on the outer side surface of the left connecting plate, a T-shaped block is arranged at one end away from the left connecting plate, of the positioning block, the T-shaped block comprises a connecting part and two clamping parts located on the upper side and the lower sideof the connecting part correspondingly, wherein a first strip-shaped sealing groove is formed in one end away from the positioning block, of the connecting part, and a first sealing strip is arrangedin the first strip-shaped sealing groove; two limiting blocks are arranged on the outer side surface of the right connecting plate, an inserting groove allowing the positioning block to be inserted isformed between the two limiting blocks and the right connecting plate, and two clamping hooks are arranged in the inserting groove, are symmetrically arranged on the upper side and the lower side ofthe T-shaped block, and can be connected with the two clamping parts in a clamped mode respectively; and the purification plate main body comprises a galvanized steel sheet, an antibacterial plate, ahollow glass magnesium plate and a color steel plate which are sequentially arranged from top to bottom. The medical purification plate is reasonable in structure, convenient to mount and dismount andgood in sealing effect.

The invention relates to the ore mining rock hydraulic device oil replenishing technology field, and discloses a device for using work temperature to replenish a rock hydraulic device with oil. The device for using the work temperature to replenish the rock hydraulic device with the oil comprises a housing, wherein a sliding rail is fixedly connected in the housing, a piston rod is slidably connected with the surface of the sliding rail, an oil replenishing sac is fixedly connected with the surface of the piston rod, a remediation box is movably connected with the surface of the piston rod andlocated below the oil replenishing sac, a flexible film is fixedly connected with the surface of the remediation box, and a spring rod is movably connected in the flexible film. When a hydraulic rodcontinuously rubs back and forth, the hydraulic rod can drive the piston rod and a connection plate to move together on the premise of generating heat, a part of lubricating oil can be consumed in moving of the piston rod and the connection plate, and the limiting function for the piston rod fails, and when the oil replenishing sac moves along with the piston rod and passes through the surface ofthe flexible film, the oil replenishing sac and the piston rod can press each other so as to enable the oil in the oil replenishing sac to flow from an oil pipe to the interior of the housing, and therefore the effect that the oil is immediately replenished without the need for stopping work of the device when the device is short of the oil is realized.

The invention provides screenwiper arm assembly parts for vehicle; the screenwiper arm assembly parts comprise an arm head part, a retention device installed to rotate relative to the arm head part and a compressed spiral spring; the compressed spiral spring is supported by the arm head part and the retention device and has elastic restoring force; under the action of the elastic restoring force, the retention device moves to the arm head part. The arm head part comprises at least a first assembly hole formed in transverse direction of the arm head part to correspondingly form a second assembly hole of the groove hole in the retention device in the transverse direction, and a fixed bracket projecting to the retention device. The retention device can rotate corresponding to the arm head part by aid of the assembly pin; the assembly pin penetrates the at least first assembly hole and the second assembly hole. The retention device comprises a rotary bracket; the rotary bracket is concave and continuously contacts the fixed bracket when the retention device rotates corresponding to the arm head part to leave off the window of the vehicle. The screenwiper arm assembly parts of the invention have strengthened structure.

The invention relates to the technical field of steel structure detection, and discloses equipment for detecting a steel structure through airflow feedback force. A base is included. The surface of the base is fixedly connected with a supporting frame. A spring rod is movably connected in the supporting frame. The top of the spring rod is movably connected with a wheel. The two sides of the springrod are in sliding connection with extrusion plates. Air supply pipes are movably connected to the surfaces of the extrusion plates. Air guiding boxes are fixedly connected to the ends, away from theextrusion plates, of the air supply pipes. Fan blades are movably connected to the surfaces of the air guiding boxes. The surfaces of the fan blades are movably connected with a rotation shaft. The top of the rotation shaft is movably connected with a worm gear. The surface of the worm gear is movably connected with a worm. The surface of the worm is movably connected with a sand plate. Scraps can be blown by the fan blades to move upwards and are scattered on the base after colliding with the steel structure, if cracks exist in the surface of the steel structure at the time, the scraps can be blown into the cracks, and therefore the effect of detecting the steel plate surface cracks according to the grinding scrap falling situation is achieved.

The invention relates to a tool rest assembly. The tool rest assembly comprises a frame body, a pair of lower slide blocks capable of vertically and glidingly arranged on the frame body, and a pair of upper slide blocks capable of vertically and glidingly arranged on the frame body; lower rollers are rotationally arranged on two lower slide blocks, and upper rollers are rotationally arranged on two upper slide blocks; adjusting devices capable of adjusting vertical positions of the lower slide blocks are respectively arranged on the frame body beneath the two slide blocks, and inching devices for adjusting vertical positions of the upper slide blocks are respectively arranged on the frame body above the two upper slide blocks; each of the adjusting devices comprises an oil cylinder on the frame body and a guide rod arranged on an oil cylinder piston rod, wherein the upper end of the guide rod is leaned and contacted with the lower ends of the lower slide blocs; a guide sleeve is arranged on the frame body, and the guide rod can be vertically and moveably arranged in the guide sleeve.

The invention discloses a household wall-hanging wooden clothes hanger, which comprises a clothes hanger body (1), wherein a plurality of clothes hooks (2) and a plurality of supporting plates (3) arearranged on the clothes hanging surface of the clothes hanger body (1), the plurality of supporting plates (3) are correspondingly arranged below the plurality of clothes hooks (2), soft vinyl sounding devices (4) are arranged between the plurality of clothes hooks (2) and the corresponding supporting plates (3); all of the plurality of soft vinyl sounding devices (4) comprise soft vinyl hollow blocks (41), the soft vinyl hollow blocks (41) are connected with plastic sounding pipes (43) through matching holes (45), the plastic sounding pipes (43) are arranged inside the soft vinyl hollow blocks (41), a plastic air pipe (42) is arranged at the inward end of the plastic sounding pipe (43), and a plastic plug (44) with a hole is arranged at the outward end of the plastic sounding pipe (43).The domestic wall-hanging wooden clothes hanger has an overweight reminding function, and can avoid the circumstance that the overweight clothes are hung on the clothes hanging hook for long, leadingto the direct degumming and falling off of the clothes hanging hook.

The invention relates to the technical field of big data equipment, and further discloses an auxiliary device for preventing voltage fluctuation from impacting big data operation equipment. The devicecomprises a shell, a push rod is movably connected to the surface of the shell, a clamping block is fixedly connected to the surface of the push rod, a clamping groove is clamped to the surface of the clamping block, a connecting rod is hinged to the end, close to the shell, of the push rod, and a guide rail is slidably connected to the end, away from the push rod, of the connecting rod; and an auxiliary mechanism is movably connected to the side, away from the push rod, of the guide rail and comprises an insertion column. An electromagnetic coil is arranged in the shell, the magnetism is generated while being electrified, when the metal pipe is extruded to move downwards; and the metal pipe is in a threaded shape, the extruded motion can be regarded as the motion of cutting the magneticinduction line, the motion is frequent, and the current generated by cutting the magnetic induction line enters the voltage stabilizer in the cooling box and is stored for later use, so that the effect of preventing the phenomenon that internal parts of the equipment are damaged due to the fact that the equipment cannot be shut down in time due to accidental power failure is achieved.

The invention discloses a movable sea wave pressure power generation device which is used for wave energy power generation, is simple in equipment and low in manufacturing cost. The device mainly comprises a push plate, a permanent magnet partition plate, a sliding rod, a spring, a waterproof air bag and a closing coil. According to the working principle, sea waves move rightwards from the left impact push plate, the push plate and the sliding rod; meanwhile, multiple closed coils are compressed, the upper long edges and the lower long edges of the closed coils extend in the direction perpendicular to the magnetic lines of force of a magnetic field to cut the magnetic lines of force to generate induction currents, and after the sea waves rest, the springs elastically extend to push the push plate and the permanent magnet partition plate to move rightwards and reset; meanwhile, the closed coils are elastically restored, the upper long edges and the lower long edges of the multiple closed coils retract in the direction perpendicular to the magnetic lines of force of the magnetic field to cut the magnetic lines of force to generate induced current again, and therefore, the induced current generated twice by the multiple closed coils is led out through a wire and then subjected to frequency conversion and other treatment to supply power to a power grid; when the impact direction ofthe sea waves is changed, the rotating disc is rotated to enable the push plate to face the impact direction of the sea waves.

The invention discloses a preparation method of a washing-free decontaminated article special for fluffy fabric and an application thereof, and belongs to the field of washing agents. A washing-free decontaminating agent prepared by the preparation method comprises 45-55 parts of a penetrant, 15-25 parts of a softening agent, 8-16 parts of a swelling agent, 10-20 parts of an enzymic preparation, 4-12 parts of an antistatic agent and 872-918 parts of a solvent. Grades of softness and filling power of the decontaminating agent are greater than 4.5 levels. The decontaminating agent is used with cleaning cotton, and can be washing the fluffy fabric, and whiteness of the fluffy fabric is not damaged. An application range of the decontaminating agent is wide. The decontaminating agent has the good decontaminating deodorizing effects to the fluffy fabric of a pillow, a sofa, a bedding, a plush toy and the like, besides has the good decontaminating deodorizing effects to relative light and thin fabric of a down jacket, a sweater, a scarf and the like, and is suitable for industrial production and application.

The invention relates to the technical field of building drainage, and discloses a household sink building drainage dampproof device. The household sink building drainage dampproof device comprises abasin, a drainage groove is formed inside the basin, a filtering layer is fixedly connected to the surface of the drainage groove, a sliding plate is movably connected to the bottom of the filtering layer, and a rolling wheel is movably connected to the surface of the sliding plate; mincing wheels are movably connected to two sides of the rolling wheel, screws are movably connected in the mincingwheels, buffer springs are movably connected to the surfaces of the screws, transmission wheels are movably connected to the ends, away from the mincing wheels, of the screws, and spring wires are movably connected to the surfaces of the transmission wheels; and fan blades are movably connected to the surface of the rolling wheel, and liquid flow pipes are fixedly connected to the portions, on twosides of the fan blades, of the surface of the rolling wheel. When the fan blades rotate, the rolling wheel can be driven to rotate, at the same time, when sewage stops flowing down, the spring wiresrelease stretching force generated before, wind of the fan blades blows the surface of the basin, and thus the effect of using water flow to drive the fan blades to dry a damp part is achieved.

The invention provides a contact piece and a connector. The connector comprises an insulating shell and a contact piece assembled in the insulating shell. The contact piece comprises a main piece body. A welding section extends from the main piece body. A contact section extends out of the main piece body. The contact section is provided with a contact part. The contact part is provided with a contact surface which is used for elastically being abutted against an adaptive contact piece to realize electric connection. An elastic supporting section is arranged at one end, far away from the mainpiece body, of the contact part on the contact section and is folded back and extends to one side opposite to the contact surface. The elastic supporting section is provided with an abutting portion used for being elastically abutted against the connector shell. The problems that an existing contact piece is poor in deformation capacity and small in deformation amplitude are solved through the arrangement of the elastic supporting section, the contact piece can provide reliable contact pressure, and contact of the contact piece is more reliable.

The invention discloses a special football training instrument which comprises a football collecting frame as well as a football shooting instrument, wherein the football shooting instrument consistsof a transmission mechanism, a fixing ring, a simulated foot, a compression pull instrument and a pre-tightening mechanism; the football collecting frame is mounted above the football shooting instrument; a football shooting surface plate is arranged in the middle of the football shooting instrument; the simulated foot is arranged above the football shooting surface plate; the transmission mechanism and the compression pull instrument are arranged below the football shooting surface plate; the fixing ring and the pre-tightening mechanism are arranged at the tail part of the football shooting surface plate; the transmission mechanism is connected with the compression pull instrument; the compression pull instrument is arranged inside the fixing ring; the tail part of the compression pull instrument is mounted on the pre-tightening mechanism. The special football training instrument is mainly used for training the rush shot reaction capability of a goalkeeper, under the dual elastic force actions of a compression spring and a coil spring, a rubber pad with unknown elastic actions is in contact with a football, then football shooting angles of different tracks can be formed, and uncertain factors of real playing can be provided for training of the goalkeeper.

The invention relates to the technical field of steel structure detection, and discloses a steel structure detection equipment using airflow feedback force, including a base, the surface of the base is fixedly connected with a support frame, and the inside of the support frame is movably connected with a spring rod, a spring The top of the rod is movably connected with rollers, the two sides of the spring rod are slidably connected with squeeze plates, the surface of the squeeze plate is movably connected with an air supply pipe, and the end of the air supply pipe away from the squeeze plate is fixedly connected with an air guide box, and the surface of the air guide box is movable A fan blade is connected, the surface of the fan blade is movably connected with a rotating shaft, the top of the rotating shaft is movably connected with a worm wheel, the surface of the worm wheel is movably connected with a worm, and the surface of the worm is movably connected with a sand plate. Then the debris will be blown by the fan blades to move upwards, collide with the steel structure and scatter on the base. If there are cracks on the surface of the steel structure at this time, the debris will be blown into the cracks, so the use of grinding debris can be achieved. Drop conditions detect the effect of cracks on the steel plate surface.

The invention provides a cold box for a lentivirus kit used in laboratory departments, and relates to the field of kits. The lentivirus kit freezer for laboratory departments includes a box body; a plurality of drawer boxes, and the drawer boxes are placed in the cavity in one-to-one correspondence; a plurality of left half-box racks and a plurality of right half-box racks, Support plate, a group of support plates are correspondingly arranged at the bottom of the left half box frame and the right half box frame; stretching mechanism, binding mechanism, to play the traction effect on the stay rope; coating mechanism, the coating mechanism is set At the end of any support plate away from the hinged seat. The lentivirus kit freezer used in the inspection department is convenient for the operator to place the reagent bottle on the placement board, so that the distance between the left half box rack and the right half box rack and the pull-out box on the top is increased, so that the cold air inside the box It can quickly spread to the inside of each drawer box, increase the rate of cold and heat transfer, and achieve a better heat preservation effect.