18results about How to "Prevent self-slip" patented technology

The utility model discloses an anti-rotation petroleum valve, which belongs to the technical field of valves, and has the technical key points that the anti-rotation petroleum valve comprises a valve body, the valve body comprises a valve body, a valve cover, a valve seat, a valve plate and a valve rod, the top of the valve body is fixedly connected with a shell, the valve rod penetrates through the shell, the top of the shell is provided with a groove, and the valve cover is arranged in the groove. According to the valve, due to the fact that the inserting groove and the inserting block are arranged, the problem of valve autorotation caused by valve design or external factors is effectively solved, the stability of valve operation is remarkably improved, and the valve is convenient to use. And the telescopic rod and the limiting block are arranged, the amplification effect of the lever principle is utilized, large enough force is easily transmitted, the valve can be successfully started, and therefore the physical strength of workers is greatly saved.

The utility model relates to the technical field of heat exchanger fin stamping dies, and discloses a fin stamping device with a replaceable die core, which comprises a lower die, a plurality of hydraulic cylinders are fixedly connected to the lower die, an upper die is fixedly connected to the top ends of the plurality of hydraulic cylinders, two groups of symmetrical telescopic rods are arranged between the upper die and the lower die, and the upper die is fixedly connected with the lower die. The upper surface of the lower mold is detachably connected with a mold plate through bolts, a core groove is formed in the upper surface of the mold plate, a mold core body is slidably connected into the core groove, and positioning grooves are formed in the four corners of the interior of the bottom of the core groove. According to the utility model, only the mold core body can be replaced, the whole mold does not need to be replaced, the replacement time is saved, the two Z-shaped rods can be moved at the same time, the time for moving the plurality of Z-shaped rods is saved, and the mold core body can be bounced for a certain distance when the mold core body is taken out.

The utility model relates to the field of automobile crash test equipment, and discloses an automobile seat installation tool, which comprises a test bed, a chassis, a sliding table and a tool body, the chassis is rotatably fixed on the test bed, the chassis is provided with at least two groups of positioning parts, the connecting line of threaded holes in one group of positioning parts is parallel to the axis of the test bed, and the sliding table is arranged on the sliding table. The connecting line of the threaded holes in the other group of positioning parts and the axis of the test bed form an included angle of 15 degrees, the sliding table is arranged on the chassis in a sliding manner, and the tool body is rotatably fixed on the sliding table. The two groups of positioning parts are arranged on the chassis, so that the chassis can be used for front collision and side collision at the same time, the technical effect that one object has multiple purposes is achieved, and research and development investment is reduced; the space distance between the seat and the interior trim is adjusted to be matched with the space position designed by a real vehicle, so that when the impact force absorption and dispersion capacity of the seat is verified, the safety air bag of the seat is tested synchronously, the research and development period is shortened, and the research and development cost is reduced.

This utility model relates to the field of office desk steel frame technology, and discloses an office desk steel frame with a position adjustment mechanism, including a base. The base is connected to a main desktop via a lifting component. An extension desktop is slidably connected to the inner wall of the main desktop. A handle is installed on the right outer wall of the extension desktop. Mounting brackets are fixedly connected to the bottom of the handle on both the front and rear sides. Table legs are rotatably connected to the opposite right side of the mounting brackets. Connecting plates are rotatably connected to the top of each table leg. An eccentric plate is rotatably connected to the opposite left side of the mounting brackets. Fixing blocks are fixedly connected to the bottom left and right sides of the extension desktop. Rotating rods are rotatably connected to the inner walls of each fixing block. In this utility model, the extension desktop can slide to extend or retract as needed, flexibly adjusting the desktop space to meet the needs of various office scenarios; the coordinated adjustment between various components ensures the overall structural stability of the office desk and helps the extension function to play a better role.

The utility model relates to the technical field of semitrailers, and discloses an easy unloading type container semitrailer structure which comprises a semitrailer plate, a connecting piece and an anti-collision beam, the connecting piece is fixedly connected to one end of the semitrailer plate, and the anti-collision beam is fixedly connected to the end, away from the connecting piece, of the semitrailer plate. A plurality of rectangular grooves are formed in the inner wall of the semitrailer plate, supporting plates are fixedly connected to the positions, located on the inner walls of the rectangular grooves, of the semitrailer plate, rotating shafts are rotationally connected to the inner walls of the supporting plates, and threaded grooves are formed in shaft bodies of the rotating shafts. The sliding block provided by the utility model moves outwards or backwards to drive the stable clamping plate to move, so that the container can be quickly and stably connected and separated from the semitrailer plate, and the subsequent loading and unloading treatment of the container on the semitrailer plate by a gantry crane is facilitated.

The utility model discloses an air energy water heater convenient to install, which relates to the technical field of air energy water heaters and comprises an air energy water heater main body, a positioning mechanism is arranged at the bottom of the air energy water heater main body, a plurality of supporting columns are fixedly installed at the bottom of the positioning mechanism, and the front face and the back face of each supporting column are rotatably connected with idler wheels. By arranging the positioning mechanism, the air energy water heater can be firmly fixed in the device, the air energy water heater is prevented from being collided and damaged in the carrying process, meanwhile, the carrying difficulty of workers is lowered, convenience is brought to installation of the workers, and the practicability is high. Through the arrangement of the brake assembly, the carrying and mounting device for the air energy water heater can be stopped at any time, the air energy water heater is prevented from automatically sliding on an inclined road surface due to gravity, the air energy water heater is prevented from being collided and damaged, and the safety performance of the air energy water heater during mounting is guaranteed.

The utility model relates to the technical field of storage tank installation bases, and discloses a flexibly adjustable storage tank equipment installation base which comprises an installation frame, an installation mechanism is arranged in the installation frame, a positioning mechanism is arranged at the bottom of the installation frame, and universal wheels are fixedly connected to the bottom of the installation frame. A positioning ring is arranged in the mounting mechanism, a storage tank is fixedly connected to the interior of the positioning ring, and a feeding opening is fixedly connected to the top of the storage tank. According to the storage tank equipment mounting base capable of being flexibly adjusted, in the using process, a worm wheel drives a guide disc, the guide disc synchronously drives four sliding blocks through guide grooves, the storage tank can be flexibly adjusted according to the size of the storage tank, then a connecting plate is driven through a screw rod, the connecting plate clamps a positioning ring through a clamping rod, and the positioning ring is clamped through a clamping rod; the storage tank can be further fixed, adjustment can be conducted according to the size of the storage tank, and the position of the storage tank can be stably fixed.

The utility model discloses a fingerprint identification touch screen with a screen protection function, which comprises a frame, and four corners of the frame are wrapped with protection blocks; the fingerprint touch screen comprises a frame and further comprises a fingerprint touch screen body embedded in the front side face of the frame, a protection plate is arranged on the front side face of the fingerprint touch screen body, a sliding block is fixed to the rear side of the protection plate, a sliding connection structure is formed between the sliding block and the frame, and meanwhile a clamping hole is formed in the lower surface of the sliding block. According to the fingerprint recognition touch screen with the screen protection function, the effect of protecting the fingerprint touch screen body can be achieved, so that the fingerprint touch screen body is prevented from being collided or mistakenly touched to be broken, unnecessary economic losses are avoided, dust in air can be intercepted, and the service life of the fingerprint recognition touch screen is prolonged. Dust is prevented from affecting operation of electronic components in the fingerprint touch screen body, the sealing effect is achieved, and unfiltered air can be prevented from entering through a gap between the filter screen and the limiting block.

The invention discloses a drawing device for mathematical modeling, and relates to the technical field of mathematical modeling devices.The drawing device comprises a drawing assembly, the drawing assembly comprises a drawing frame, and a mounting groove is formed in the front surface of the drawing frame. Paper can be assisted to be adsorbed on the surface of the electrostatic sticker through the electrostatic adsorption force of the electrostatic sticker, the two sides of drawing paper can be tightly clamped by the clamping plates through the magnetic adsorption effect between the magnetic adsorption plates and the magnetic adsorption blocks, so that positioning of the drawing paper is completed, and after a basic pattern is drawn, the transparent drawing board is driven to be pulled outwards by pulling an iron handle, so that the drawing paper can be conveniently positioned. The transparent drawing board is rolled in the initial state, when the transparent drawing board is completely pulled out, the rolling reed is also in the unfolded state, drawing is facilitated, the same basic pattern does not need to be repeatedly drawn, after each time of drawing is completed, the camera is started, the modeled drawing is shot, and therefore storage of the drawing is achieved.

The utility model provides a photovoltaic support frame. The photovoltaic supporting frame comprises a mounting frame used for mounting a photovoltaic panel and a sweeping mechanism sliding in the length direction X of the mounting frame through a guide mechanism, the sweeping mechanism comprises a sliding block, a moving plate, a connecting column and a cleaning brush, and the moving plate extends in the width direction Y of the mounting frame. At least one end of the movable plate is connected with one sliding block, the sliding blocks are connected with the guide mechanism, the guide mechanism is arranged on the mounting frame, the cleaning brush is connected to the position under the movable plate through a connecting column, and the lower surface of the cleaning brush is in sliding contact with the upper surface of the photovoltaic panel. According to the utility model, the cleaning mechanism is integrated on the mounting frame for mounting the photovoltaic panel, and the cleaning mechanism and the mounting frame are connected into a whole, so that when the surface of the photovoltaic panel needs to be cleaned, the cleaning mechanism can be directly used without finding tools or independently storing the tools, the cleaning mechanism is more convenient to use, and the tools are prevented from being lost.

The invention relates to the technical field of vehicle accessories, in particular to an adjustable semitrailer spare tire fixing device which comprises a drawing track fixedly mounted on a vehicle body part, a drawing bottom frame of a rectangular frame type structure is arranged on the inner side of the drawing track, and turnover frame limiting mechanisms are arranged on the front side face and the rear side face of the drawing bottom frame. A drawing underframe limiting mechanism is arranged on the edge of the right side of the vehicle body part, an overturning frame is arranged on the upper side of the drawing underframe, a longitudinal cross beam frame is arranged at the right end of the overturning frame, the bottom of the overturning frame is rotationally connected with the right end face of the drawing underframe through two sets of hinges, two sets of symmetrical drawing frames are fixedly arranged on the left side face of the cross beam frame, and a stretching air spring is arranged on the outer side of the overturning frame. A spare tire fixing mechanism is arranged on the upper side of the beam frame. The whole device can be drawn, pulled, slid and overturned to move, has an adjustable function, facilitates quick taking and storage of the spare tire, is novel in structure, easy and convenient to operate, safe and reliable, improves the use experience of a user, and reduces the difficulty of manual operation.

The utility model discloses a compression-resistant and leakage-proof fire hose which comprises a rubber lining, a waterproof layer and a multifunctional protection structure. The compression-resistant layer is wrapped and bonded on the outer surface of the rubber lining, the compression-resistant layer is made of polyester fiber materials and has high strength and stability so as to improve the compression resistance of the rubber lining, the thermal insulation layer is wrapped and bonded on the outer surface of the compression-resistant layer, the thermal insulation layer is made of glass fiber materials and has good thermal insulation performance, and the service life of the rubber lining is prolonged. The detachable protective layer is arranged outside the heat insulation layer, the surface layer of the detachable protective layer is the wear-resistant layer, and the wear-resistant layer has excellent wear resistance and tear resistance, so that the fire hose is not prone to being worn and broken when dragged on the ground, the inner layer of the detachable protective layer is the puncture-proof layer, and the puncture-proof layer is not prone to being broken when dragged on the ground. The stab-resistant layer has excellent impact resistance, cutting resistance and stab resistance, and leakage caused by the fact that the rubber lining is scratched and stabbed by sharp objects on the ground is prevented.

The invention relates to the technical field of valve box machining equipment, in particular to an angle-adjustable drilling machine supporting device for valve box machining, which comprises a rotating assembly, a pitching adjusting assembly and a tilting assembly, the rotating assembly comprises a motor, a bracket and a vertical shaft, the pitching adjusting assembly comprises a vertical plate, a transverse shaft and a circular lifting frame, and a circle of annular groove is formed in the circular lifting frame; the tilting and swinging assembly comprises a swinging frame, an adjusting mechanism and a locking mechanism, the swinging frame is arranged on the side of the vertical plate, and a rotating shaft connected with the vertical plate is arranged on the swinging frame. According to the device, the rotating assembly, the pitching adjusting assembly and the tilting assembly are used for adjusting the flat rotating angle, the pitching angle and the tilting angle of the drilling machine correspondingly, adjustment of the three angles does not affect one another, synchronous adjustment can be achieved, adjustment can also be achieved independently, the drilling machine can change the angle in a large range, and the device is suitable for drilling of different machining holes.

The utility model discloses a split mounting type air preheater structure, which belongs to the field of air preheaters and comprises a connecting cylinder, cover plates are arranged on two sides of the connecting cylinder, connecting pipes are arranged on the inner sides of the cover plates, one side of each connecting pipe is communicated with a hollow plate, one side of each hollow plate is communicated with a heat exchange pipe, and the heat exchange pipe is communicated with a heat exchanger. Shells are fixedly connected to the front face and the back face of the connecting cylinder, fixing rods are connected to the two sides of each shell in an inserted mode, and one side of each fixing rod is fixedly connected with a cover plate; when the heat exchange tube needs to be cleaned, the connecting disc is pulled, the connecting disc drives the pull rod to move, the pull rod drives the connecting plate to move, the connecting plate drives the plug pin to move, and after the plug pin is far away from the fixing rod, the cover plate can be pulled outwards and drives the fixing rod to move, so that the fixing rod is separated from the shell, and meanwhile, the cover plate is far away from the connecting tube; and then the heat exchange tube can be taken out to be cleaned, and dust attached to the surface of the heat exchange tube is prevented from affecting work.

The invention provides a fixed installation structure and method of a core-through current transformer, and belongs to the technical field of electrical equipment installation. The structure comprises the supporting mechanism, the sliding assembly, the mounting mechanism and the limiting mechanism, through cooperation of all the mechanisms, the mounting process of the core penetrating type current transformer is simplified, and the mounting efficiency and universality are improved. The supporting mechanism improves the stability, and the sliding assembly and the installation mechanism can be adjusted according to different busbar sizes and transformer models. And the connection stability between the mounting mechanism and the busbar is improved by the limiting mechanism. All the components of the structure are reasonable in design, compact in structure, small in occupied space and particularly suitable for a narrow installation space in a switch cabinet, the problem that construction in the narrow space is inconvenient in a traditional screw fixing mode is solved, the manufacturing cost is low, and good market prospects are achieved.

The utility model relates to the field of hub machining, and discloses a hub mold storage rack which comprises a placing rack and a plurality of limiting racks fixedly arranged on the placing rack in parallel, sliding blocks are clamped on the limiting racks in a sliding mode, clamping pieces are arranged on the sliding blocks, and each clamping piece comprises a driving air cylinder, a clamping plate, a connecting rod and a push rod. The two clamping plates are connected to the sliding block in a relatively sliding mode, one end of the push rod is hinged to the outer sides of the clamping plates, the middle of the connecting rod is rotationally connected to the sliding block, one end of the connecting rod is rotationally connected with the other end of the push rod, and a bending rod is arranged at the other end of the connecting rod. The two bending rods are rotationally connected with the tail end and the piston end of the driving air cylinder correspondingly, and the effect that storing and taking are convenient and labor-saving is achieved.

The utility model relates to the technical field of oxygen masks, in particular to an oxygen mask with an ear protecting function, which comprises a mask main body and an elastic rope, two ends of the elastic rope are respectively and fixedly mounted at two ends of one side of the mask main body, an oxygen tube is movably inserted into the other end of the mask main body, and two sliding barrels are slidably sleeved on the elastic rope. A V-shaped keel is fixedly installed at the bottom of the sliding cylinder, a protection pad is fixedly installed at the bottom of the V-shaped keel, the elastic rope is made of rubber, and the protection pad is made of soft rubber; the elastic rope can be stretched by pulling the elastic rope, then the face mask body covers the face of a person, then the elastic rope is released, the elastic rope can conveniently fix the face mask body to the face of the person due to the elasticity of the elastic rope, the sliding barrel slides on the elastic rope in the process, and then the V-shaped keel drives the protection pad to be clamped to the upper edge of the ear of the person. Therefore, the upper edge of the ear can be prevented from being cut, tied and damaged by pressure by the elastic rope, and the comfort level of personnel is improved.

The utility model relates to the technical field of glass cleaning, in particular to a sponge roll shaft soaking water tank for a glass substrate cleaning machine, which comprises a box body with an opening at the upper part, and the box body comprises two opposite inner walls; the upper supports are arranged in the box body, each upper support comprises two transverse rods used for supporting the two ends of the sponge roll shaft respectively, each transverse rod comprises a front end and a bottom end, and the bottom ends of the two transverse rods can be rotationally connected to the same inner wall around the axis in the vertical direction so that the front ends of the two transverse rods can be far away from or close to the inner wall; the bottom support is arranged in the box body and located below the upper support, each bottom support comprises two supporting rods used for supporting the two ends of the sponge roller shaft, one end of each supporting rod is connected to one inner wall, and the other end of each supporting rod is connected to the other inner wall. The cross rod is rotatably arranged on the inner wall of the box body, so that the problem that the upper bracket shields to influence the taking and placing of the sponge roll shaft on the lower bracket is avoided.