146results about How to "Prevent loosening and falling" patented technology

The invention discloses a novel mobile storage device which comprises a base body fixedly arranged in a computer, and a memorizer in inserted fixation fit connection with the base body. An inserted fixation cavity is formed in the left side face of the base body. The right side of the inserted fixation cavity is communicated with first slide grooves. A slide cavity is communicated between the upper first slide groove and the lower first slide groove. An iron core is fixedly arranged on the inner left wall of the slide cavity and provided with an electric wire. A slide plate is in sliding fit connection in the slide cavity. The upper end and the lower end of the slide plate extend into the first slide grooves respectively. The novel mobile storage device is simple in structure and convenient to use; by locking the memorizer, it is avoided that the working continuity and stability of the memorizer are affected by looseness and disengagement; meanwhile, the inserted fixation cavity can beclosed, the conductivity process is independently controlled, and security is ensured.

The invention provides a switching device for adjusting a lamp installation angle, a lighting device and another switching device. The switching device for adjusting the lamp installation angle comprises a fixed part and a connecting main body which are rotatably connected, wherein the fixed part is provided with first wheel teeth and a first gear part, the first wheel teeth and gear teeth on the first gear part form a first gear plate with continuous gear teeth, the connecting main body is provided with second wheel teeth and a second gear part, the second wheel teeth and gear teeth on the second gear part form a second gear plate with continuous gear teeth, the first gear plate can be meshed with the second gear plate, the first and second wheel teeth are formed by pressure casting of aluminum alloy, and the first and second gear parts are made of high-hardness materials. Compared with the prior art, the switching device for adjusting the lamp installation angle has the advantages that when the switching device works, the high-hardness materials are meshed with aluminum alloy, or the high-hardness materials are meshed with each other, so that the first and second gear plates are not easy to abrade, the service life can be prolonged, higher strength can be borne, and the application range can be enlarged.

The invention discloses a mechanical clamping device for lifting and supporting an oil casing. The mechanical clamping device for lifting and supporting the oil casing comprises a mounting plate, a mounting cover and a clamping device; a mounting groove is formed in the mounting plate; an adjusting rod is mounted on the internal side of the mounting groove; a servo motor is fixed above the mounting plate; a first driving shaft is connected to the servo motor; a second driving shaft is positioned on the left side of a vertical plate; adjusting gears are mounted on the second driving shaft and the first driving shaft; a connecting rod is positioned on the internal side of a limiting cover; a limiting hole is formed in the connecting rod; a connecting shaft is mounted on a clamping device; and the clamping device is connected with a rotating disc through the connecting shaft. According to the mechanical clamping device for lifting and supporting the oil casing, the mechanical clamping device is convenient to adjust according to the lengths and diameters of the oil casings, the adaption ability of the mechanical clamping device to the oil casings with different models is improved, themechanical clamping device is beneficial for improving the clamping stability of the oil casings with the different models, and a situation that the oil casings are loosened and fall off in the machining process can be avoided.

The invention relates to a support pipe conveying device, in particular to a convenient support pipe conveying device for a construction site, and solves the problem to provide the convenient supportpipe conveying device for the construction site where support pipes can be conveniently conveyed. In order to solve the problem, the convenient support pipe conveying device for the construction sitecomprises a bottom plate, wheels, a pushing hand, damping mechanisms, an L-shaped plate, a length adjusting mechanism, width adjusting mechanisms and a bundling mechanism, wherein the wheels are fixedly connected to the bottom part of the bottom plate; the pushing hand is fixedly connected to one end part of the bottom plate; the damping mechanisms are fixedly connected to the other end part of the bottom plate; the L-shaped plate is fixedly connected to the output ends of the damping mechanisms; the length adjusting mechanism is arranged at the end part, which is far away from the pushing hand, of the bottom part of the L-shaped plate. According to the convenient support pipe conveying device provided by the invention, a convenient support pipe conveying effect is achieved.

The invention discloses an anti-falling structure based on an AI intelligent test server power plug. The anti-falling structure comprises a shell; two inserting pieces are arranged on the side wall ofthe shell; two anti-falling mechanisms are arranged on the shell; the anti-falling mechanism comprises a fixing groove formed in the side wall of the shell. A containing cavity is formed in the shell. A placing plate is elastically connected to the bottom in the placing cavity through a pressure spring; the side wall of the placing plate is fixedly connected with a permanent magnet strip; the upper wall of the permanent magnet strip is fixedly connected with a connecting rod, the connecting rod extends into the fixing groove and is fixedly connected with a pressing plate, a control cavity isformed in the shell, the inner wall of the control cavity is elastically connected with a piston plate through a plurality of tension springs, the side wall of the shell is provided with a negative pressure groove, and the negative pressure groove communicates with the control cavity through a connecting channel. The plug can be prevented from loosening, normal work of the AI intelligent test server is ensured, and people can easily pull out the plug and insert the plug into a socket.

The invention provides a buffering connector for tramcars, relates to the field of tramcar connectors, and concretely relates to the buffering connector for the tramcars. The buffering connector for the tramcars can prevent the rigid collision of the tramcars, and has a double buffering function. The buffering connector for the tramcars comprises a hydraulic cylinder, an oil storage tank, a buffering spring, a spring pressure plate, a lock nut, a plug connection end and a one-way throttle valve. A rod chamber of the hydraulic cylinder directly communicates with the oil storage tank. By arranging an oil return passage, the rod cavity of the hydraulic cylinder and a rodless cavity of the hydraulic cylinder communicate with each other. The one-way throttle valve is arranged in the oil returnpassage. The one-way throttle direction is: flowing into the rod cavity of the hydraulic cylinder from the rodless cavity of the hydraulic cylinder. The buffering spring sleeves a piston rod of the hydraulic cylinder. The buffering connector for the tramcars has a good anti-collision effect and can effectively prevent collision deformation of the tramcars.

The invention discloses a dust collector capable of preventing a dust collection barrel from loosening, which comprises a dust collector body (10). In the technical scheme, a dust collection barrel (20) is arranged in the dust collector body (10) and is provided with a hollow handle (2) on the top thereof, a dust collection barrel button switch (3) is arranged at the left opening of the handle (2), the left end of the handle (2) is connected with the dust collector body (10) in a clamping way, and a structure which is used for locking the dust collection barrel button switch (3) is arranged in the handle (2). Compared with the prior art, due to the additional arrangement of simple structures in the dust collector disclosed by the invention, the dust collection barrel button switch can be locked under the control of the user, thereby effectively preventing the problem that the dust collection barrel loosens and falls off due to mistaken operation of the dust collection barrel button switch by the user during movement of the dust collector, enhancing the feeling of the user in using the product, ensuring the safety of the product use, and achieving great significance in the production practice.

The invention belongs to the technical field of spring machining equipment, and particularly relates to a spring chamfering machine. The machine comprise a machine frame, wherein a feeding hopper is fixed at the top of the machine frame, a material guide plate connected with the feeding hopper is arranged at the top of the machine frame, the right side of the material guide plate is bent to a slope, and a plurality of magnetic strips are uniformly arranged on the slope of the material guide plate; a clamping roller driven by a first motor is arranged in the machine frame, and a plurality of placing grooves are uniformly formed in the clamping roller in the circumferential direction; an arc-shaped pressing plate is arranged at the lower end of the material guide plate, the pressure plate isarranged on the front-rear face board of the material guide plate, the gap between the pressing plate and the clamping roller is gradually reduced from the position A to the position B, and when a spring moves to the position B, the spring is just clamped through the pressing plate and the clamping roller; two cylindrical chamfering blocks driven by a second motor are arranged in the machine frame, a chamfer is arranged at the front end of each chamfering block, the two chamfering blocks are front-back symmetrically distributed on the two sides of the clamping roller correspondingly, and therotating directions of the two chamfering blocks are opposite; and a discharging plate is arranged at the position, located below the clamping roller, of the machine frame, and four through grooves are uniformly formed in the discharging plate.

The invention provides a switching device for adjusting a lamp installation angle, a lighting device and another switching device. The switching device for adjusting the lamp installation angle comprises a fixed part connected with a lamp, a connecting main body connected with a lamp post, and an anti-loose screw, wherein the fixed part is rotatably connected with the connecting main body by a first screw, the fixed part is provided with an arc-shaped through hole for allowing the anti-loose screw to penetrate through, the connecting main body is provided with a threaded hole, the anti-loose screw penetrates through the arc-shaped through hole to be matched with the threaded hole, and the screwing directions of the anti-loose screw and the first screw are opposite. Compared with the prior art, the switching device for adjusting the lamp installation angle has the advantages that the screwing directions of the anti-loose screw and the first screw are opposite, when external force, such as wind, acts on the switching device, the anti-loose screw and the first screw are stressed by the acting force in the same direction, as the screwing directions of the anti-loose screw and the first screw are opposite, one of the anti-loose screw and the first screw is loosened, while the other of the anti-loose screw and the first screw is certainly tightened, and the switching device is prevented from being loosened and falling off.

The present invention discloses a socket module with a protective door and a socket. The socket module comprises a plug sleeve box provided with a plug sleeve, a pressing plate arranged on the plug sleeve box, a protective door arranged on the pressing plate and corresponding to the plug sleeve, and a reset unit capable of driving the protective door to reset; wherein a limiting element is arranged over the pressing plate, the protective door comprises a driving part and a positioning part, the driving part is provided with a driving inclined plane capable of driving the protective door to slip on the pressing plate, the limiting element comprises an opening area corresponding to the driving part, the limiting element at least covers a part of the reset unit and a part of the positioning part, and a part of the positioning part is movably arranged in a gap between the limiting element and the pressing plate, and the highest point of the driving part is higher than the lower surface of the limiting element. A panel is plugged to the upper side of the socket module, and the highest point of the driving part is lower than the lower surface of the panel, so as to form the socket. The socket module and the socket of the present invention can effectively avoid the occurrence of a popping and falling phenomenon of the protective door and the reset unit, thereby facilitating improvement of production efficiency and product quality.

The invention discloses a tire centering device and method, and relates to the technical field of tire conveying equipment. The tire centering device comprises a mounting frame. An air cylinder is fixedly mounted at the bottom end of the mounting frame, a rotating rod is fixedly connected to the top end of the air cylinder, and the rotating rod penetrates through the bottom end of the mounting frame to be welded to a central rotating disc. Connecting rod modules are fixedly connected to the two sides of the center rotating disc, four clamping jaws are mounted at the upper end of the mounting frame, and a lifting adjusting mechanism is mounted at the top end of the mounting frame. Telescopic outer rods movably connected with the periphery of the top end of the mounting frame are arranged inthe lifting adjusting mechanism, and connecting rods are welded to the bottom ends of the telescopic outer rods. According to the device and the method, the rotating rod of the air cylinder can drivethe center rotating disc to rotate through the air cylinder, the connecting rod modules of the air cylinder drive the four clamping jaws to rotate at the same time, and accordingly, a tire is clampedto the center position. In the working process of a conveying belt, the situation that the tire falls off as the position of the tire is too close to the outer side and normal input of some machiningdevices cannot be met can be prevented.

The invention relates to an installation method for a balance weight, which comprises the following steps: 1, the balance weight is connected and fastened to a balance weight chain wheel by a plurality of outer hexagon bolts of which the bolt heads are provided with holes; and 2, a steel wire sequentially penetrates through the holes in the heads of the outer hexagon bolts, and is tensioned and locked. According to the installation method disclosed by the invention, the balance weight is connected with the balance weight chain wheel through the outer hexagon bolts and the locked steel wire, the risk of the falling of the balance weight in the operation process of a host machine is reduced, the operation stability of a chain transmission mechanism of the host machine is improved, hidden dangers are completely eradicated, the safety is guaranteed, and the operation reliability and safety of the host machine can be greatly improved.

The invention relates to a cutting machine for producing furniture plates, and belongs to the technical field of cutting machines. The cutting machine comprises a worktable. A support is mounted on the worktable, a cutting device for cutting wood is mounted on the support, a placing seat is horizontally mounted at the bottom of the right side of the worktable, straight slots are formed in the placing seat in the left-right directions, and first lifting frames are independently horizontally arranged in the straight slots; a second lifting frame is vertically connected with the left ends of thefirst lifting frames and is fixedly mounted on a rotary shaft, and the rotary shaft is mounted at the right upper end of the worktable via bearings. The cutting machine for producing the furniture plates has the advantages that the cutting machine is simple in structure and is safe and reliable when the wood is placed on the worktable, and the problems of slipping and falling in placing proceduresdue to crane technologies and the like can be effectively solved; the cutting machine is convenient when operated; sawdust further can be collected and treated under the effect of a collecting funnel, and accordingly the cutting machine can bring convenience for collecting the sawdust.

The invention discloses a machining clamp for a numerical control machine tool. The machining clamp comprises a numerical control worktable. A clamp installation frame is arranged on the numerical control worktable. The right side face of the clamp installation frame is provided with a clamp fixing seat through bolts. A clamping column is installed at the middle portion of the right side face of the clamp fixing seat. Spring pieces are distributed at the right end of the clamping column at equal intervals in a surrounding manner. A horizontally-arranged adjusting rod is connected to the middle portion of the clamp installation frame in an inserted manner. A rotary handle is installed at the left end of the adjusting rod. The right end of the adjusting rod sequentially penetrates the clamp installation frame, the clamp fixing seat and the clamping column and extends to the outer portion of the right end of the clamping column. According to the machining clamp for the numerical control machine tool, the interior of a workpiece is fixed under the cooperation of the adjusting rod, the spring pieces and an adjusting screw, and therefore the workpiece and the clamping column can be firmly fixed, the workpiece is prevented from loosening and falling, the friction force between the spring pieces and the inner side face of the workpiece can be enlarged through friction protruding points on the surfaces of rubber pieces, and the fixing effect is improved.