Anti-drop bolt

Abstract

The utility model relates to the technical field of bolts, and discloses an anti-falling bolt, including a main body, a first screw rod is arranged at the lower end of the main body, the main body includes a support block and a connecting ring, a fixing rod is fixedly arranged at the lower end of the support block, a second screw rod is fixedly arranged at the lower end of the fixing rod, a connecting rod is fixedly arranged inside the connecting ring, rotating rods are rotatably arranged on both sides of the lower end of the connecting rod, movable rods are rotatably arranged at the lower ends of the two rotating rods, sliding rods are rotatably arranged at the lower ends of the two movable rods, movable grooves are opened on both sides of the lower end of the second screw rod, and spring telescopic rods are fixedly arranged inside the two movable grooves. In the utility model, the tightness between the bolt and the object is improved by connecting the ring and the threaded plate, the bolt can be prevented from falling off, and the work efficiency is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to an anti-falling bolt. Background Art

[0002] Bolts, as a mechanical part, are mainly used to connect two or more parts. Their structure mainly includes a screw and a nut. Through the rotation of the thread, the parts are tightly fixed to achieve a stable connection. At the same time, bolts are widely used in all walks of life. In order to ensure the stability of the bolt and prevent it from falling off during use, an anti-falling bolt was born.

[0003] In various engineering practices, bolts are widely used as connecting elements. Their working principle is to make the bolts tightly fit with the objects to be connected by rotation. However, during long-term use, due to the limitation of the connection method relying only on the bolt thread, the objects may be affected by factors such as vibration, which may reduce the tightness between the bolts and the objects and require reinstallation. To a certain extent, the work efficiency is reduced. Therefore, the utility model provides an anti-drop bolt to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose an anti-falling bolt. When the device is used, the tightness between the bolt and the object is improved by connecting the ring and the threaded plate, so that the bolt can be prevented from falling off, thereby improving work efficiency to a certain extent.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-falling bolt, comprising a main body, a first screw rod is arranged at the lower end of the main body, the main body comprises a support block and a connecting ring, a fixing rod is fixedly arranged at the lower end of the support block, a second screw rod is fixedly arranged at the lower end of the fixing rod, a connecting rod is fixedly arranged inside the connecting ring, rotating rods are rotatably arranged on both sides of the lower end of the connecting rod, movable rods are rotatably arranged at the lower ends of the two rotating rods, and sliding rods are rotatably arranged at the lower ends of the two movable rods.

[0006] The second screw rod is provided with movable grooves on both sides near the lower end, and spring telescopic rods are fixedly arranged inside the two movable grooves. A connecting block is fixedly arranged on the side where the two spring telescopic rods are close to each other, and a pressing block is fixedly arranged on the upper ends of the two connecting blocks. A threaded plate is fixedly arranged on the side where the two pressing blocks are away from each other, and a sliding groove is provided inside the two pressing blocks;

[0007] Through the above technical solution, the object squeezes the connecting ring, and then the connecting ring drives the rotating rod to move upward through the connecting rod, and then the rotating rod drives the sliding rod to move through the movable rod, and then the sliding rod drives the threaded plate on the pressing block through the sliding groove to connect and squeeze the object, thereby improving the tightness between the bolt and the object.

[0008] Furthermore, the two connecting blocks are respectively slidably arranged inside the movable groove, and the connecting ring is slidably arranged outside the fixing rod near the lower end;

[0009] Through the above technical solution, when the device is used, the connecting block slides inside the movable groove, so that the pressure plate can be controlled to move horizontally.

[0010] Furthermore, a support ring is slidably provided on the outer side of the fixing rod near the upper end, a compression spring is fixedly connected between the connecting ring and the supporting ring at a position close to the fixing rod, and a rubber ring is fixedly provided at the lower end of the connecting ring;

[0011] Through the above technical solution, when the device is used, the tightness between the connecting ring and the object can be conveniently improved by squeezing the spring, and the bolt can be prevented from wearing the object through the rubber ring.

[0012] Furthermore, the two slide rods are slidably arranged inside the two slide grooves respectively, and the second screw rod is fixedly arranged on the upper end of the first screw rod;

[0013] Through the above technical solution, when the device is used, the sliding rod is moved inside the sliding groove, which facilitates the control of the movement of the threaded plate on the pressing block, thereby improving the tightness between the bolt and the object.

[0014] Furthermore, the second screw rod comprises a support rod, and a reinforcement layer is fixedly disposed on the outer surface of the support rod;

[0015] Through the above technical solution, when using this device, the material of the support rod can be stainless steel, which is convenient for long-term use. At the same time, the reinforcement layer can be made of aluminum alloy to increase the strength of the bolt.

[0016] Furthermore, an anti-corrosion layer is fixedly provided on the outside of the reinforcement layer, and the material of the anti-corrosion layer is zinc;

[0017] Through the above technical solution, zinc can be used in the anti-corrosion layer, and the corrosion resistance of the bolts can be improved by galvanizing, which facilitates maintenance.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model proposes an anti-falling bolt. When the device is used, the object squeezes the connecting ring, and then the connecting ring drives the rotating rod to move upward through the connecting rod, and then the rotating rod drives the sliding rod to move through the movable rod, and then the sliding rod drives the threaded plate on the pressing block to connect and squeeze the object through the sliding groove, thereby improving the tightness between the bolt and the object, thereby preventing the bolt from falling off and improving the work efficiency to a certain extent.

[0020] 2. The utility model proposes an anti-falling bolt. When the bolt is used to connect an object, the object pushes the connecting ring to squeeze the spring, which further improves the tightness between the bolt and the object and prevents the bolt from falling off. At the same time, the rubber ring prevents the bolt from wearing the outside of the object, thereby ensuring the integrity of the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the axial side of the utility model close to the support block;

[0022] Figure 2 This is a schematic diagram of the axial side of the utility model close to the support ring;

[0023] Figure 3 It is a front cross-sectional schematic diagram of the utility model;

[0024] Figure 4 This is a schematic diagram of the first screw structure of the utility model;

[0025] Figure 5 It is an enlarged schematic diagram of point A of the present utility model.

[0026] Legend:

[0027] 1. Main body; 2. First screw rod; 101. Support block; 102. Support ring; 103. Extrusion spring; 104. Connecting ring; 105. Rubber ring; 106. Second screw rod; 107. Fixed rod; 108. Connecting rod; 109. Rotating rod; 110. Movable rod; 111. Sliding rod; 112. Sliding groove; 113. Spring telescopic rod; 114. Movable groove; 115. Connecting block; 116. Pressing block; 117. Threaded plate; 201. Support rod; 202. Reinforcement layer; 203. Anti-corrosion layer. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example:

[0030] Reference Figure 1-5 The utility model provides an embodiment: an anti-falling bolt, including a main body 1, a first screw rod 2 is arranged at the lower end of the main body 1, the main body 1 includes a support block 101 and a connecting ring 104, a fixing rod 107 is fixedly arranged at the lower end of the support block 101 for supporting, a second screw rod 106 is fixedly arranged at the lower end of the fixing rod 107 for connecting with an object, a connecting rod 108 is fixedly arranged inside the connecting ring 104, rotating rods 109 are rotatably arranged on both sides of the lower end of the connecting rod 108, movable rods 110 are rotatably arranged at the lower ends of the two rotating rods 109, and sliding rods 111 are rotatably arranged at the lower ends of the two movable rods 110.

[0031] The second screw rod 106 is provided with movable grooves 114 on both sides near the lower end, and the two movable grooves 114 are fixedly provided with spring telescopic rods 113 inside for horizontal movement. The two spring telescopic rods 113 are fixedly provided with connecting blocks 115 on the sides close to each other. The upper ends of the two connecting blocks 115 are fixedly provided with pressing blocks 116, which are convenient for the pressing blocks 116 to move horizontally and squeeze through the connecting blocks 115. The two pressing blocks 116 are fixedly provided with threaded plates 117 on the sides away from each other. The two pressing blocks 116 are provided with sliding grooves 112 inside, which are convenient for controlling the pressing plates to move through the sliding rod 111. The object squeezes the connecting ring 104, and then the connecting ring 104 drives the rotating rod 109 to move upward through the connecting rod 108, and then the rotating rod 109 drives the sliding rod 111 to move through the movable rod 110, and then the sliding rod 111 drives the threaded plate 117 on the pressing block 116 through the sliding groove 112 to connect and squeeze the object, thereby improving the tightness between the bolt and the object.

[0032] The two connecting blocks 115 are respectively slidably arranged inside the movable groove 114, and the connecting ring 104 is slidably arranged on the outside of the fixed rod 107 near the lower end. When using this device, the connecting block 115 slides inside the movable groove 114 to facilitate the control of the horizontal movement of the pressure plate. A support ring 102 is slidably arranged on the outside of the fixed rod 107 near the upper end. An extrusion spring 103 is fixedly connected between the connecting ring 104 and the support ring 102 near the fixed rod 107. A rubber ring 105 is fixedly arranged on the lower end of the connecting ring 104. When using this device, the extrusion spring 103 is used to facilitate the improvement of the tightness between the connecting ring 104 and the object, and the rubber ring 105 is used to prevent the bolts from causing wear on the object.

[0033] The two slide rods 111 are respectively slidably arranged inside the two slide grooves 112, and the second screw rod 106 is fixedly arranged at the upper end of the first screw rod 2. When using this device, the slide rod 111 is moved inside the slide groove 112, which is convenient for controlling the movement of the threaded plate 117 on the pressure block 116, thereby improving the tightness between the bolt and the object. The second screw rod 106 includes a support rod 201, and a reinforcing layer 202 is fixedly arranged on the outer surface of the support rod 201. When using this device, the material of the support rod 201 can be stainless steel, which is convenient for long-term use. At the same time, the reinforcing layer 202 can be made of aluminum alloy, which is convenient for improving the strength of the bolt. The outside of the reinforcing layer 202 is fixedly provided with an anti-corrosion layer 203, and the anti-corrosion layer 203 can be made of zinc. The corrosion resistance of the bolt is improved by galvanizing, which is convenient for maintenance.

[0034] Working principle: When using this device, first, the object pushes the connecting ring 104 to move close to the support ring 102, and then squeezes the extrusion spring 103. At the same time, when the connecting ring 104 is squeezed and moved, the connecting ring 104 drives the rotating rod 109 to move upward through the connecting rod 108, and then the rotating rod 109 drives the sliding rod 111 to move through the movable rod 110. Finally, the sliding rod 111 drives the threaded plate 117 on the pressing block 116 to move through the sliding groove 112, and then the threaded plate 117 is squeezed and connected with the object.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-drop bolt, comprising a main body (1), characterized in that: A first screw rod (2) is arranged at the lower end of the main body (1), and the main body (1) comprises a support block (101) and a connecting ring (104); a fixing rod (107) is fixedly arranged at the lower end of the support block (101), a second screw rod (106) is fixedly arranged at the lower end of the fixing rod (107), a connecting rod (108) is fixedly arranged inside the connecting ring (104), rotating rods (109) are rotatably arranged on both sides of the lower end of the connecting rod (108), movable rods (110) are rotatably arranged at the lower ends of the two rotating rods (109), and sliding rods (111) are rotatably arranged at the lower ends of the two movable rods (110); The second screw rod (106) is provided with movable grooves (114) on both sides near the lower end, and spring telescopic rods (113) are fixedly arranged inside the two movable grooves (114). A connecting block (115) is fixedly arranged on the side where the two spring telescopic rods (113) are close to each other, and a pressing block (116) is fixedly arranged on the upper ends of the two connecting blocks (115). A threaded plate (117) is fixedly arranged on the side where the two pressing blocks (116) are away from each other, and a sliding groove (112) is provided inside the two pressing blocks (116).

2. The anti-dropping bolt according to claim 1, characterized in that: The two connection blocks (115) are respectively slidably arranged inside the movable groove (114), and the connection ring (104) is slidably arranged outside the fixing rod (107) near the lower end.

3. The anti-dropping bolt according to claim 1, characterized in that: A support ring (102) is slidably arranged outside the fixing rod (107) near the upper end, a compression spring (103) is fixedly connected between the connecting ring (104) and the supporting ring (102) at a position close to the fixing rod (107), and a rubber ring (105) is fixedly arranged at the lower end of the connecting ring (104).

4. The anti-dropping bolt according to claim 1, characterized in that: The two sliding rods (111) are respectively slidably arranged inside the two sliding grooves (112), and the second screw rod (106) is fixedly arranged on the upper end of the first screw rod (2).

5. The anti-dropping bolt according to claim 1, characterized in that: The second screw rod (106) comprises a support rod (201), and a reinforcement layer (202) is fixedly disposed on the outer surface of the support rod (201).

6. The anti-dropping bolt according to claim 5, characterized in that: An anti-corrosion layer (203) is fixedly disposed outside the reinforcement layer (202), and the material of the anti-corrosion layer (203) is zinc.

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