65results about How to "Soft material" patented technology

The present invention relates to the field of disposable sanitary product production equipment, and specifically to a pull-up pants ultrasonic flip welding device, comprising a frame, a rotating shaft and an ultrasonic welding mechanism are mounted on the frame, the ultrasonic welding mechanism comprises a welding machine body and a pressing plate, the materials to be welded are arranged and transported in an assembly line, when the pressing plate contacts the welding machine body, the materials to be welded are sandwiched between the pressing plate and the welding machine body, the frame is provided with a flip mechanism for driving the pressing plate to approach / move away from the welding machine body, the flip mechanism comprises a groove wheel, a rotating frame, a guide rail, a slider and a connecting rod mechanism, the circumferential outer surface of the groove wheel is provided with a guide groove, the lower end of the slider is provided with a guide rod embedded in the guide groove so that the slider can be displaced as the position of the guide rod changes. The present invention is applied to the welding process of waist circumference and other positions in the production of sanitary products.

The invention discloses a cable surface water removal device for high-voltage electric power overhaul, and relates to the field of cable surface water removal, a water removal part comprises a moving ring, an inner cavity of the moving ring is rotatably connected with a central rotating shaft, and an inner cavity of the central rotating shaft is fixedly connected with a driving rod; a water removal shell is fixedly connected to the end, away from the central rotating shaft, of the driving rod, and a replacement mechanism is fixedly connected to the side, away from the driving rod, of the water removal shell. The sponge is extruded by the extrusion rods on the two sides, so that water is discharged, meanwhile, the water pump extracts the extruded water, the extension rod extrudes towards the direction of the sponge, the water in the center of the sponge is treated, the water in the sponge is cleaned more thoroughly, drying agents are arranged in inner cavities of the extrusion rods, and air and the water on the surfaces of the extrusion rods are treated. The heater evaporates a portion of the moisture.

The invention discloses a full-bore soluble blanking plug, which relates to the technical field of under-pressure operation in the petroleum industry, and comprises an upper joint and a lower joint which are in threaded connection, a soluble inner core and a soluble outer sleeve, the soluble inner core is arranged in the soluble outer sleeve, and the outer part of the soluble outer sleeve is tightly connected with the inner side of the upper joint; a step limiting structure used for limiting movement of the soluble inner core is arranged in the soluble outer sleeve, the soluble inner core in the upper connector and the end side, close to the lower connector, of the soluble outer sleeve are wrapped with anti-soluble interlayers, the outer diameter of the soluble outer sleeve is not smaller than the inner diameter of a tubular column, the reverse pressure difference of the soluble blanking plug can reach 70 MPa, the requirement for the pressure of a construction well can be met, and the structure is simple. Meanwhile, after the soluble plug of the soluble blanking plug is dissolved, the full bore of a pipeline can be realized, the later operations of plugging a bridge plug by a steel wire or a cable and the like are not influenced, the soluble blanking plug can be connected to the lowermost part of a pipe column and also can be used for connecting the pipe column, and the problem of poor universality of an existing blanking plug is solved.

The utility model relates to the technical field of leakage prevention of refuse landfills, in particular to a polymer bentonite waterproof blanket which comprises a supporting geomembrane on the bottom layer, a polymer bentonite complex in the middle and surface polymer bentonite on the upper layer. The polymer bentonite complex is of an integrated structure formed by embedding polymer bentonite into pores of a net-shaped fabric. When the waterproof blanket is used on the side slope, the sandwich anti-seepage material cannot move in the direction of the geomembrane, and the problem that an anti-seepage material-free area cannot be formed is solved.

The utility model discloses a kind of hysteroscope liquid leakage prevention structures, including center cylinder base, the both ends of center cylinder base are fixedly connected with end fixed ring, the outer end array of two sides the end fixed ring is fixedly connected with multiple elastic supporting pieces, and the outer end of multiple elastic supporting pieces of same side is equipped with silica gel outer cover, two sides The outer side of elastic supporting piece is fixedly connected with operating slip ring and insertion stop seat respectively, and the outer end of two sides silica gel outer cover is fixedly connected with the outer edge of corresponding side operating slip ring and insertion stop seat.In insertion, small in diameter, it is convenient to set, and will not cause damage to cervix, can effectively solve the problem of clinical surgeon encountered in hysteroscopy surgery in uterine cavity liquid leakage, reduce operation time and surgical complications, improve operation efficiency and safety.

The utility model discloses a peritoneal dialysis catheter fixing band, which relates to the technical field of peritoneal dialysis and comprises an annular fixing band body made of textile cloth, a first elastic band is sewn on the upper edge of the fixing band body, and a second elastic band is sewn on the lower edge of the fixing band body. A double-layer cloth bag is sewn on the inner side of the fixing band body, and a first peritoneal dialysis tube outlet and a second peritoneal dialysis tube outlet are symmetrically formed in the double-layer cloth bag respectively; an outer cloth bag is sewn on the outer side of the double-layer cloth bag; according to the utility model, the fixing band body made of the textile cloth is arranged, so that the material is soft and more comfortable, the air permeability is good, and the skin state cannot be influenced when a patient uses the fixing band; meanwhile, the first elastic band and the second elastic band are sewn on the fixing band body, the fixing band body can be fixed to the abdominal cavity of the patient, the displacement phenomenon is avoided, and the fixing band can adapt to patients of different body types.

The invention discloses an adjustable stitching instrument for temporomandibular joint disc reduction, and relates to the technical field of temporomandibular joint disc stitching, the adjustable stitching instrument comprises a base, one side of the base is fixedly connected with a mounting belt, one end of the mounting belt is sleeved with a buckle shaped like a Chinese character'ri ', one side of the base is fixedly connected with a first sponge pad, and the other side of the base is fixedly connected with a second sponge pad. A second sponge mat is fixedly connected to one side of the base, an adjusting sewing mechanism is installed on the upper surface of one end of the base and used for adjusting the position of a sewing needle, and an auxiliary adjusting mechanism is installed on the upper surface of the other end of the base. According to the adjustable stitching instrument for temporomandibular joint disc reduction, the first wire tensioning rod and the second wire tensioning rod are designed, an arc-shaped circular bead hooks a positioning wire, a wire tensioning spring enables a first wire tensioning clamp and a second wire tensioning clamp to rotate relatively, and a wire hooking groove in one end of a stitching needle hooks the positioning wire of the first wire tensioning rod and the positioning wire of the second wire tensioning rod; the effect that the thread hooking operation is safe and accurate during sewing is achieved.

The utility model relates to the technical field of medical auxiliary appliances, in particular to an infusion pipeline protection treatment towel for a central venous indwelling catheter, which comprises a treatment towel main body, a folding area is arranged in the middle of the treatment towel main body, an upper layer treatment towel is arranged on one side of the folding area, and a lower layer treatment towel is arranged on one side of the folding area. A plurality of connecting bands are installed on one side of the lower-layer treatment towel at equal intervals, the elastic telescopic fixing bands are used in cooperation with the fixing rings, and a transparent window is formed in the upper-layer treatment towel. The fixing firmness of a pipeline can be enhanced through the elastic telescopic fixing belts and the fixing rings, displacement of the pipeline is avoided, the pipeline is effectively fixed in the treatment towel body, and the area where the pipeline is fixed can be observed through the transparent window; medical staff can conveniently observe the connection condition of the pipeline and the smooth condition of the pipeline in time, the treatment effect of the medical staff on a patient is conveniently improved, and adverse events are reduced.

The invention relates to the technical field of layered composite materials, in particular to a heat-insulating and weather-resistant composite material, a preparation method and application of the heat-insulating and weather-resistant composite material to car clothing. The composite material comprises a three-layer structure including an outer layer film, a middle layer film and an inner layer film, the inner layer film is a PP non-woven fabric, the material is soft, vehicle paint cannot be damaged due to friction, the middle layer film is an EPE foam cotton piece, the heat conductivity coefficient of air in a pore structure contained in the middle layer film is low, the heat insulation effect is good, and the heat insulation effect is good. The outer-layer film is prepared from polyacrylonitrile as a main raw material through electrostatic spinning; polyacrylonitrile has good weather resistance and solarization resistance, polyacrylonitrile is subjected to modification treatment, a waterproof component and an anti-ultraviolet component are introduced, and the anti-ultraviolet performance and the waterproof performance can be improved; a heat insulation component and an anti-oxidation component are added into the modified polyacrylonitrile spinning solution, so that the heat insulation performance and the anti-oxidation performance of the outer layer film can be improved.

The utility model relates to the technical field of bicycle lithium batteries, and discloses a bicycle lithium battery containing a multi-specification conductive frame, which comprises an upper cover plate, a first connecting plate is arranged on the right side of the upper cover plate, an oil shell is fixedly mounted on the right side of the first connecting plate, a battery pack is arranged in the shell, and a base is fixedly mounted in front of the battery pack. A protective sleeve is fixedly installed above the circuit board, a second connecting plate is fixedly installed on the right side of the shell, a connecting hole is formed in the second connecting plate, a lower cover plate is fixedly installed on the right side of the second connecting plate, and a connecting block is fixedly installed on the right side of the lower cover plate. By adopting the technical scheme, the battery pack connecting structure has the beneficial effects that the plurality of conducting strips are mainly used for connecting the plurality of battery packs in series, and the plurality of bases limit the bottoms of the plurality of battery packs while ensuring the stable connection of the plurality of battery packs, so that the plurality of battery packs are ensured to be mutually fixed.

The utility model relates to a respiratory protection mask provided with a sealing self-checking device, and belongs to the technical field of respiratory protection sealing detection of protection masks. The sealing self-checking device is composed of a mask body, an elastic key, an inspiration valve seat channel, an inspiration valve, a filtering element connector, an air channel and a locking ring, the elastic key made of silica gel or rubber materials is adopted to press and block an air inlet channel, and due to the fact that the elastic key is soft, the plane contact sealing effect of the elastic key and the inspiration valve seat channel is good after the elastic key is pressed; after pressing, the fingers are released to restore the original shape, and the operation is convenient; the device can be suitable for breathing protection masks such as full face masks, half masks, single-filtering-element connectors and double-filtering-element connectors. The defects that in the prior art, detection illusion is easily caused by a self-detection method of blocking an air inlet by hands, and an airtight detection cover plate needs to be closed by driving a hinge to rotate through a pull rod in a manner of adopting the airtight detection cover plate, operation is inconvenient, a user feels oppressed when closing the airtight detection cover plate, and the airtight detection cover plate needs to be pressed down again to return are overcome.

The invention discloses a detachable monitoring point laying device without damaging the surface of a cylindrical building, which comprises a movable connecting piece, a flexible transition piece is arranged between the movable connecting piece and the building, the movable connecting piece and the flexible transition piece are detachably connected, and the flexible transition piece and the building are detachably connected. The inner side face of the flexible transition piece is attached to the cylindrical building, the outer side face of the flexible transition piece is attached to the movable connecting piece, the movable connecting piece is connected with an installation base, and the installation base is used for placing a monitoring object piece. By arranging the flexible transition piece, effective protection on the surface of the cylindrical building is achieved, the problem of secondary damage caused by operation such as punching in a traditional monitoring method is avoided, and the structural integrity and safety of the building are ensured. Meanwhile, due to the fact that the flexible transition piece is soft in material and has self-adaptive deformation capacity, connection between the monitoring point and the building is tight and stable, and connection reliability can be guaranteed even when the building is slightly deformed or displaced.

The utility model discloses a motor clamping test tool in the technical field of motor test tools, and the tool comprises a platform, the platform is provided with a test bench, the platform is also provided with a slide rail, the slide rail is slidably connected with a tool plate sliding towards the test bench, the platform is fixedly provided with a first cylinder, a second cylinder and a third cylinder, and the first cylinder, the second cylinder and the third cylinder are fixed on the platform. The first air cylinder drives a push plate pushing the tool plate to move towards the test board, the movable end of the second air cylinder drives a pressing plate pressing the motor in the radial direction, and the movable end of the third air cylinder drives a limiting block limiting sliding of the tool plate. According to the invention, the motor can be rapidly fixed, and the reliability and efficiency of the test tool are higher.

The utility model relates to the technical field of medical care devices, and discloses a simple excrement drainage device which comprises a base plate and a negative pressure device, a gasket is arranged on the outer surface of the base plate, the gasket is PICC fixing glue, an opening is formed in the outer surface of the base plate, an anus bag is fixedly communicated with the outer surface of the bottom of the base plate, and the anus bag is provided with an opening. A drainage tube is fixedly communicated with the outer surface of the bottom of the anus bag, a drainage bag is arranged at the end, away from the anus bag, of the drainage tube, the connecting tube is communicated with the output end of the negative pressure device, flushing tubes are fixedly communicated with the outer surfaces of the left side and the right side of the drainage tube, and the two flushing tubes are both L-shaped tubes. According to the simple excrement drainage device, the PICC fixing rubber type gasket is arranged to fix the simple excrement drainage device on the periphery of the anus of a patient, drainage is conducted through the negative pressure device and the drainage tube, and the effects that the external drainage device is arranged, the material is soft, and damage to the perianal skin of the patient can be reduced are achieved.

This invention relates to the field of polymer technology and discloses a method for producing polyethylene resin for geomembranes. A dual-loop reactor is used, with ethylene as the raw material, 1-hexene as the comonomer, isobutane as the diluent, and an aluminum-modified supported chromium catalyst for catalysis; the chromium catalyst has a specific surface area of ​​280–330 m². 2 / g, pore volume of 2.3-2.8mL / g, chromium content of 2-4wt%, aluminum content of 1-5wt%; slurry density of the first reactor is 510-520kg / m³ 3 The slurry density in the second reactor is 530-540 kg / m³. 3 The ethylene concentration in the first reactor is 3.5-4.5 mol%, and the ethylene concentration in the second reactor is controlled at 6-6.5 mol%. The temperature in the first reactor is controlled at 94-96℃, and the temperature in the second reactor is controlled at 93-95℃. The pressure in the first reactor is controlled at 3.7-3.9 MPa, and the pressure in the second reactor is controlled at 3.9-4.1 MPa. The residence time in the first reactor is 70-90 min, and the residence time in the second reactor is 40-50 min. The polyethylene resin used in the geomembrane has low density and soft material, which is beneficial for downstream construction and has good processing performance.

The invention discloses a transformer maintenance device for electric power engineering maintenance, and relates to the technical field of transformer maintenance equipment.The transformer maintenance device comprises a maintenance box, the maintenance box is internally provided with a multi-processing mechanism, and the multi-processing mechanism is used for loosening the surface of a transformer before detection and performing dust collection after loosening; the multi-treatment mechanism can also wipe the surface of the transformer after dust collection treatment and control the wettability of the surface of the transformer in the wiping treatment process, the time for replacing different cleaning tools can be shortened when the three cleaning modes are combined to clean the surfaces of the transformers with different pollution degrees, the practicability of the corrugated pipe is improved, and the practicability of the corrugated pipe is improved. And moreover, the cleaning tool is easy to carry and store, the wetting degree of alcohol to the processing sleeve is controlled through the control block, the processing sleeve is prevented from being too wet, and the service life of the transformer is prolonged.

The utility model discloses a telescopic folding type broom, relates to broom related technical field, including connecting block and folding telescopic mechanism, this product is provided with a plurality of groups of card slot connection, it is convenient to combine and dismantle, is convenient for follow-up maintenance and storage, is provided with rubber material anti-slip sleeve, rubber material is softer, improves user's use experience, prevents the device from falling off in the use process, and it is convenient to maintain and store. A telescopic structure is arranged, a button is pressed down to enable a spring to contract to drive a poke rod to conduct small-range position deviation, when the poke rod deviates, a limiting stopper is not tightly attached to a groove in a telescopic shell any more, vertical position adjustment can be conducted, locking and limiting are conducted again when the limiting stopper reaches a corresponding groove, the overall design is convenient to operate, and the number of parts is small. And the broom head made of silica gel and the rotating structure are arranged, the fixed shell is shifted to drive the sliding plate to slide on the surface of the sliding groove, the broom head is made to rotate, and the broom is suitable for different working environments and working requirements.

The utility model relates to a kind of adjustable body position pad for nuclear magnetic examination body position, comprising: body position pad ontology, body position pad ontology is wedge type;A pair of arm placing grooves, a pair of arm placing grooves are symmetrically arranged on the upper end surface of body position pad ontology;A pair of straps, a pair of straps are respectively arranged on the two sides of body position pad ontology, for fixing the forearm or wrist of examinee placed in a pair of arm placing grooves.The utility model provides a kind of adjustable body position pad for nuclear magnetic examination body position, the arm of the examinee is lifted by this body position pad, prevent arm to hang in air, when nuclear magnetic MR scanning, bring better comfort to examinee.For the forearm of conscious examinee, it can be placed on the arm placing groove above head by oneself, but for the forearm of unconscious examinee, it can be bound on the arm placing groove by strap.

The utility model relates to the technical field of tea cake production, and provides a tea cake discharging device which comprises a rack, a pushing device arranged on the rack and a tea shoveling device connected to the output end of the pushing device, the pushing device can push the tea shoveling device to move, and the tea shoveling device comprises a tea shoveling plate. And at least one tea shoveling brush is arranged on at least one surface of the tea shoveling plate. Tea cakes are separated from the mold through the tea shoveling device, the tea cakes adhered to different positions of the mold can be separated at a time through the multiple tea shoveling brushes in different directions, the working efficiency is improved, the structure is simple, energy consumption is saved, the mechanical cost is reduced, the tea shoveling brushes are made of soft materials, and the tea shoveling brushes are convenient to use. The tea cake discharging device reduces tea cake damage caused by excessive friction and pressure, and solves the technical problems that an existing tea cake discharging device may cause tea cake damage and is complex in structure and low in working efficiency.

The application relates to a novel body position pad, and belongs to the technical field of medical devices. The novel body position pad comprises an external wrapping piece and an internal fluid layer. The external wrapping piece comprises a first wrapping layer, a second wrapping layer and a third wrapping layer. The first wrapping layer is flexible. The second wrapping layer is arranged between the first wrapping layer and the third wrapping layer. The second wrapping layer supports the first wrapping layer and the third wrapping layer. The first wrapping layer and the third wrapping layer are both waterproof. The first wrapping layer and the third wrapping layer can isolate air. The external wrapping piece is arranged to form a containing cavity. The internal fluid layer is filled in the containing cavity. The internal fluid layer is flowable. The application can improve the problem that the shaping effect of the body position pad is not easy to maintain.

The utility model provides a drying device for salt production, which comprises a screw feeder, a material transfer device and a drying box, a feed port is arranged at one horizontal end of the drying box, and the material transfer device is mounted at the bottom end of the feed port so as to convey materials conveyed by the screw feeder to a vibration net of the drying box. A spiral feeder is arranged right above the feeding hole; materials fall into the drying box when fed through the spiral feeder, the driving motor drives the poke rod and drives the material pushing plate to rotate, and on the basis that the widths of the material pushing plates are different, the borne materials are different in weight and the rotating force is the same, the materials can be thrown out by different distances and then fall onto the vibration net. And the materials are driven by the vibration net to move forwards, so that the situation that the materials are accumulated below the feeding port, edible salt is prone to caking, dried by entering air and discharged from the discharging port is avoided.

The utility model relates to the technical field of infusion pumps, in particular to an infusion pump use calibration device which comprises an infusion pump calibration device body, a cavity is formed in one side of the infusion pump calibration device body, a penetrating-in through opening is formed in the top of the cavity, a penetrating-out through opening is formed in the bottom of the cavity, pipe clamp devices are installed in the cavity at intervals, and pipe clamps of the pipe clamp devices are symmetrically installed. Each pipe clamp comprises a support, a roller and a flexible rubber sleeve, the supports are fixedly connected with the inner plate face of the cavity, the supports are movably provided with the rollers through shafts, the rollers are fixedly sleeved with the flexible rubber sleeves, and gaps are reserved between the pipe clamps in the same set. According to the infusion pump calibration device, a plastic clamp in the infusion pump calibration device is replaced by the pipe clamp device, the pipe clamp device has the advantages of being capable of rolling under stress, soft in material and capable of rebounding clamping force, resistance to installation and removal of an infusion tube can be reduced, compression deformation is reduced when the infusion tube is clamped and fixed, the anti-skid particles are arranged on the outer surface of the flexible rubber sleeve, and therefore the infusion pump calibration device is convenient to use. And the friction force for clamping the infusion tube is increased, so that the infusion tube is clamped and fixed more stably.

The utility model discloses a four linkage PP combination moves and carries the machine, including frame, the frame top fixed mounting has the top frame, the top frame inside fixed mounting has reciprocating transmission mechanism and is through reciprocating transmission mechanism respectively transmission installation PP separation mechanism and B fixed stand, B fixed stand bottom fixed mounting has sandwich superposition mechanism, copper foil board superposition mechanism and film superposition mechanism, PP separation mechanism The sandwich superposition mechanism The copper foil board superposition mechanism And Film superposition mechanism All through elevating system elevating moves and carries, be equipped with PP superposition platform between PP separation mechanism and sandwich superposition mechanism. The utility model carries out synchronous moves and carries to three groups of different superposition materials by B fixed stand, and separates PP material to superposition platform by cooperation PP separation mechanism and moves and carries, can complete multiple moves and carries superposition work in the same time period, shortens the time of layer by layer superposition to PP material, improves the efficiency of the moves and carries machine for electronic circuit substrate production and processing.

The utility model discloses a child atomizer which comprises an atomizer body, and a suction mechanism enters the oral cavity of a child through a connecting pipe and a silica gel nipple. According to the child atomizer and the inhalation mechanism, the problem of tension and fear of a child during atomization treatment is solved, before atomization treatment, the connector is in threaded connection with the connecting pipe, preparation work before atomization treatment is completed, tension and fear of the child during atomization treatment are reduced through the silica gel nipple on the bottom plate, the silica gel nipple is made of a silica gel material, the material is soft, and the silica gel nipple is not prone to falling off. The positioning mechanism solves the problem of length adjustment of a connecting rope, the tightness of the connecting rope needs to be adjusted, the connecting rope passes through one side of a positioning block and an upper end hole and is connected to the lower end surface of a pull block, the two sliding blocks are held by hands to slide inwards, then the pull block is pulled, the length of the connecting rope is adjusted, and the hands are loosened after finishing; therefore, the length of the connecting rope is fixed so as to adapt to atomization treatment of different child patients.

The utility model relates to the technical field of vehicle transmission system accessories, in particular to a large-size clutch handle with an anti-pinch structure, which comprises a holding handle and a support fixedly arranged on the holding handle, the support is hinged with the clutch handle through an elastic hinge, the end part of the clutch handle is fixedly provided with an end rod, the end rod faces one side of the holding handle, and the other side of the holding handle is provided with an anti-pinch structure. An arc-shaped end ring is fixedly installed at the end of the end rod, an anti-pinch ball is fixedly installed at the end of the arc-shaped end ring, and the anti-pinch ball is sleeved with a rubber protection ball. An end ring is fixedly installed at the end of the holding handle, a rubber sleeve is fixedly installed between the side face of the end ring and the holding handle, an arc transition face is arranged on the side face, away from the end ring, of the rubber sleeve, an arc-shaped connecting rod is fixedly installed at the end, close to the support, of the clutch handle, and a tension spring is arranged between the arc-shaped connecting rod and the support. The utility model has the effect of anti-pinch protection, is favorable for restoring the original shape, and is convenient to use.

The utility model relates to concrete product processing technical field, concretely disclose a concrete product surface polishing equipment with dustproof, including work housing, its front surface installs maintenance door board, the lower extreme fixed connection of work housing has the impurity removal box, and the lower extreme fixed of impurity removal box has the collection box body, the top surface of work housing cavity installs the polisher body, the cavity bottom surface fixed connection of work housing has the support workstation. This concrete product surface polishing equipment with dustproof, through dust nozzle slanting downward spray, can directly suppress the dust that just produced in polishing area, avoids dust diffusion, cooperation air pump machine passes through Y type guide slot adsorption dust, then after filter screen filtration will collect the dust to collection box body, forms " suppression - adsorption - filtration - collection " complete dustproof process, reduces environmental pollution, and also avoids dust to the abrasion of equipment internal component.

The invention provides an anti-ultraviolet waterproof coiled material, the raw material components of the waterproof coiled material are, by mass: 30-35 parts of linear high-density polyethylene particles (HDPE), 30-35 parts of linear low-density polyethylene particles (LDPE), 25-30 parts of ethylene-vinyl acetate (EVA), 3-5 parts of polyethylene-octene co-elastic toughener (POE), 1.8-2.5 parts of carbon black, 2-3 parts of antioxidant, 2-3 parts of anti-ultraviolet agent, and 0.1-0.3 parts of stabilizer. The anti-ultraviolet waterproof coiled material has good tensile strength, good elongation, strong adaptability to base expansion or cracking deformation, root puncture resistance, and ultraviolet resistance through the composition ratio of the application.

The utility model discloses a torque wrench, and belongs to the technical field of wrenches, the key points of the technical scheme are that the torque wrench comprises a wrench body, and the torque wrench is characterized in that the wrench body comprises a clamping device comprising a round clamp; a rod mechanism; the reversing device is connected with the rod mechanism and connected with the clamping device; wherein the round clamp is connected with the clamping device. The utility model provides a torque wrench. The torque wrench can be matched with bolts of various models without replacing a sleeve.