Anti-skid device of bolt
The screw connection design with disc springs and interlocking slots addresses sliding issues in engineering machinery, improving reliability and ease of installation and maintenance.
Patent Information
- Application Number
- CN202421913623.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-08
AI Technical Summary
Existing bolted connections are prone to slide under vibration and stress of construction machinery, resulting in reduced reliability. The existing anti-slip devices have problems such as high machining accuracy, difficulty in disassembly and high maintenance costs.
The disc spring and the traction structure are adopted, and the disc springs are fixed at the limit by a pair of bolts, and the disc springs are limited at the nuts. The fixing plate and the traction frame are connected through the traction slot and the traction block to form a stable anti-slip device.
Effectively prevent bolts and nuts from sliding under construction machinery vibration and stress, improve the reliability of bolt connections, simplify the installation and disassembly process, and reduce maintenance costs.
Smart Images
Figure CN223105018U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-slip devices for bolts, and particularly to an anti-slip device for bolts. Background Technique
[0002] A bolt is a mechanical part, a cylindrical threaded fastener used with a nut. It is a type of fastener composed of a head and a screw rod. It needs to cooperate with a nut to be used for fastening and connecting two parts with through holes. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection belongs to a detachable connection.
[0003] From the perspectives of safety and reliability, the vibration and stress of construction machinery will cause the two parts connected by bolts to slide against each other, thereby reducing the reliability of the bolts. Therefore, anti-slip devices are used when bolts are used for connection at key parts of construction machinery, and existing construction machinery bolt connections generally adopt measures such as adding positioning pins. The installation of positioning pins has relatively high requirements for processing accuracy, is difficult to disassemble, has high maintenance costs, and complex maintenance procedures, and is very troublesome to use.
[0004] The existing patent CN206347014U, an anti-slip device for bolt connection, relates to the technical field of construction machinery tools; an anti-slip block is arranged in the slots of the fixed plate and the traction frame, the bolts are respectively inserted into the fixed slot holes of the fixed plate, the anti-slip block, and the traction frame, a flat washer is arranged on the lower side of the bolt, the lower end of the bolt is locked to the traction frame through a spring washer and a lock nut, installation slots are arranged at both ends inside the anti-slip block, a compression spring is installed inside the installation slot, an anti-slip serrated block is installed at the lower end of the compression spring, anti-slip serrations are arranged at the bottom of the anti-slip serrated block, and balls are arranged on the side wall of the anti-slip serrated block, and the balls are matched with the side wall of the installation slot: The utility model is convenient to realize two-way anti-slip, has high safety, is convenient to use, has simple operation, and high working efficiency.
[0005] This patent uses bolts to penetrate the fixed plate, the anti-slip block and the traction frame, and then the anti-slip block restricts the fixed plate and the traction frame through the anti-slip serrated plate, so that the fixed plate and the traction frame will not slide easily. Although it solves problems such as relatively high requirements for processing accuracy and difficulty in disassembly during the installation of positioning pins through a simple structure and plays an anti-slip role for the bolts, when the construction machinery vibrates and is stressed, the nut will still be affected by the construction machinery and slide on the bolt, thereby reducing the reliability of the product.
[0006] Therefore, we propose an anti-slip device for bolts to solve the above-mentioned problems. Content of the Utility Model
[0007] The purpose of the present utility model is to provide an anti-slip device for bolts, so as to solve the problem mentioned in the above background technology that in an anti-slip device for bolt connections, the fixing plate and the traction frame are restricted by the anti-slip serrated plate, so that the fixing plate and the traction frame will not slide easily, thereby playing an anti-slip role for the bolts. However, when the construction machinery vibrates and is stressed, the nut will still be affected by the construction machinery and slide on the bolt, thus reducing the reliability of the product.
[0008] To achieve the above purpose, the present utility model provides the following technical solution: an anti-slip device for bolts, including a bolt, the bolt threadedly penetrates through a fixing plate and a traction frame to the outside, a nut is threadedly connected to the lower end of the bolt, a circular groove one is provided on the top surface of the fixing plate, two disc springs one are provided between the upper end of the bolt and the circular groove one, and both of the two disc springs one are sleeved on the outside of the upper end of the bolt, and the directions of the two disc springs one are opposite, a circular groove two is provided on the bottom surface of the traction frame, two disc springs two are provided between the nut and the circular groove two, and both of the two disc springs two are sleeved on the outside of the bolt, and the directions of the two disc springs two are opposite, an annular clamping groove one is provided on the top surface of the nut, a clamping groove one and a clamping block one are evenly provided on the bottom surface of the fixing plate, and the clamping groove one and the clamping block one are arranged in a staggered manner on the bottom surface of the fixing plate, a clamping groove two and a clamping block two are evenly provided on the top surface of the traction frame, and the clamping groove two and the clamping block two are arranged in a staggered manner on the top surface of the traction frame, the clamping groove one is connected to the corresponding clamping block two, and the clamping block one is connected to the corresponding clamping groove two.
[0009] Preferably, two annular clamping grooves two are provided at the upper end of the bolt, and two clamping grooves three are provided in each annular clamping groove.
[0010] Adopting the above technical solution, the bolt is connected to the disc spring one through the annular clamping groove two and the clamping groove three.
[0011] Preferably, the diameter of the circular groove one is larger than the diameter of the disc spring one.
[0012] Adopting the above technical solution, the circular groove one provides a space for the disc spring one to deform under force.
[0013] Preferably, the inner hole diameters of the two disc springs one are both equal to the diameter of the screw part of the bolt, and the inner hole diameters of the two disc springs one are both larger than the diameters of the two annular clamping grooves two.
[0014] Adopting the above technical solution, when the two disc springs one are deformed under force, they are connected to the bolt through the two annular clamping grooves two.
[0015] Preferably, two clamping blocks three are provided on the inner sides of the two disc springs one, and the outer shapes of the two clamping blocks three and the inner shapes of the two clamping grooves three are both semi-circular.
[0016] With the above technical solution, when the two disc springs are deformed under force, the bolts are limited by the two clamping blocks III and the clamping grooves III.
[0017] Preferably, the diameter of the second circular groove matches the maximum diameter of the nut.
[0018] With the above technical solution, the nut can be engaged into the second circular groove.
[0019] Preferably, the diameter of the first annular clamping groove is larger than the diameter of the second disc spring, and the inner hole diameters of the two second disc springs are larger than the diameter of the threaded part of the bolt.
[0020] With the above technical solution, the first annular clamping groove provides a space for the second disc spring to deform under force, and the second disc spring deforms under force and contacts the bolt.
[0021] Preferably, the inner shapes of each of the first clamping groove and the second clamping groove are conical shapes that match the outer shapes of the corresponding first clamping block and the second clamping block.
[0022] With the above technical solution, the fixing plate and the traction frame are clamped and connected through the first clamping groove, the second clamping groove, the first clamping block and the second clamping block.
[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows: An anti-slip device for a bolt plays a role in fixing and anti-slip for the bolt through two first disc springs, prevents sliding through the mutual clamping of the fixing plate and the traction frame, limits and fixes the bolt, and limits and fixes the nut through the second disc spring and the second circular groove.
[0024] 1. In the present utility model, there are two first disc springs. When the bolt is tightened, the two first disc springs are deformed under force, the outer sides contact the inner wall of the first circular groove, the inner sides contact the second annular clamping groove, and the third clamping block contacts the third clamping groove. The two first disc springs limit the bolt and reduce the force transmitted by the construction machinery, playing an anti-slip role.
[0025] 2. In the present utility model, there are a fixing plate and a traction frame. When the bolt is tightened, the fixing plate and the traction frame are clamped and connected through the first clamping groove, the first clamping block, the second clamping groove and the second clamping block, and will not easily slide, limit the bolt, and play an anti-slip role.
[0026] 3. In the present utility model, there are two second disc springs. When the bolt is tightened, the nut applies force to the two second disc springs and engages into the second circular groove. The second disc spring closest to the nut is deformed under force, the outer side contacts the first annular clamping groove, the inner side contacts the bolt, and the two second disc springs and the second circular groove limit the nut. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 is a front cross-sectional structural schematic diagram of the present utility model;
[0028] Figure 2 、Schematic diagram of the bottom surface structure of the fixing plate of the present utility model;
[0029] Figure 3 、Schematic diagram of the top surface structure of the traction frame of the present utility model;
[0030] Figure 4 、Schematic diagram of the structure of the bolt and the disc spring I of the present utility model.
[0031] In the figure: 1. Bolt; 2. Fixing plate; 3. Traction frame; 4. Nut; 5. First circular groove; 6. First disc spring; 7. Second circular groove; 8. Second disc spring; 9. First annular clamping groove; 10. First clamping groove; 11. First clamping block; 12. Second clamping groove; 13. Second clamping block; 101. Second annular clamping groove; 102. Third clamping groove; 601. Third clamping block. Specific implementation manners
[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0033] Please refer to Figures 1-4The utility model provides a technical solution: an anti-slip device for a bolt, including bolt 1, which threadedly penetrates through fixing plate 2 and traction frame 3 to the outside. Two annular slots II 101 are provided at the upper end of bolt 1, and two slots III 102 are provided in each annular slot 101. A nut 4 is threadedly connected to the lower end of bolt 1. A circular slot I 5 is provided on the top surface of fixing plate 2. Two disc springs I 6 are provided between the upper end of bolt 1 and circular slot I 5, and both disc springs I 6 are sleeved on the outer side of the upper end of bolt 1, and the directions of the two disc springs I 6 are opposite. The diameter of circular slot I 5 is larger than the diameter of disc spring I 6. The inner hole diameters of the two disc springs I 6 are both equal to the diameter of the screw part of bolt 1, and the inner hole diameters of the two disc springs I 6 are both larger than the diameters of the two annular slots II 101. Two clamping blocks III 601 are provided on the inner sides of the two disc springs I 6, and the outer shapes of the two clamping blocks III 601 and the inner shapes of the two slots III 102 are both semi-circular. A circular slot II 7 is provided on the bottom surface of traction frame 3. The diameter of circular slot II 7 matches the maximum diameter of nut 4. Two disc springs II 8 are provided between nut 4 and circular slot II 7, and both disc springs II 8 are sleeved on the outer side of bolt 1, and the directions of the two disc springs II 8 are opposite. An annular slot I 9 is provided on the top surface of nut 4. The diameter of annular slot I 9 is larger than the diameter of disc spring II 8, and the inner hole diameters of the two disc springs II 8 are larger than the diameter of the screw part of bolt 1. Slots I 10 and clamping blocks I 11 are evenly provided on the bottom surface of fixing plate 2, and slots I 10 and clamping blocks I 11 are arranged in a staggered manner on the bottom surface of fixing plate 2. Slots II 12 and clamping blocks II 13 are evenly provided on the top surface of traction frame 3, and slots II 12 and clamping blocks II 13 are arranged in a staggered manner on the top surface of traction frame 3. Slot I 10 is connected to the corresponding clamping block II 13, and clamping block I 11 is connected to the corresponding slot II 12. The inner shapes of each slot I 10 and slot II 12 and the outer shapes of the corresponding clamping blocks I 11 and clamping blocks II 13 are conical and match each other.
[0034] Working principle: The two disc springs I 6 are sleeved on the outer side of the upper end of bolt 1 in a positive and negative manner, and the two disc springs I 6 are positioned by clamping blocks III 601 and slots III 102. Then, bolt 1 threadedly penetrates through fixing plate 2 and traction frame 3 through the slot holes provided on fixing plate 2 and traction frame 3, so that the two disc springs are placed in circular slot I 5. Then, the two disc springs II 8 are sleeved on the outer side of the lower end of bolt 1 in a positive and negative manner and placed in circular slot II 7. Finally, nut 4 is threadedly connected to the lower end of bolt 1 to fasten bolt 1.
[0035] Effect 1: When bolt 1 is tightened, the two disc springs I 6 are deformed under force. The outer sides contact the inner wall of circular slot I 5, the inner sides contact annular slot II 101, and clamping blocks III 601 contact slots III 102. The two disc springs I 6 limit bolt 1 and reduce the force transmitted by construction machinery, playing an anti-slip role.
[0036] Effect two: When the bolt 1 is tightened, the fixing plate 2 and the traction frame 3 are snap-connected through the first slot 10, the first clamping block 11, the second slot 12 and the second clamping block 13, and will not easily slide, limiting the bolt 1 and playing an anti-slip role.
[0037] Effect three: When the bolt 1 is tightened, the nut 4 applies force to the two disc springs two 8 and snaps into the second circular groove 7. The disc spring two 8 closest to the nut 4 is stressed, contacting the first annular groove 9 on the outside and the bolt 1 on the inside. The two disc springs two 8 and the second circular groove 7 limit the nut 4.
[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An anti-slip device for a bolt, comprising a bolt (1), characterized in that, The bolt (1) passes through the fixing plate (2) and the traction frame (3) in a threaded manner to the outside. A nut (4) is threadedly connected to the lower end of the bolt (1). A first circular groove (5) is provided on the top surface of the fixing plate (2). Between the upper end of the bolt (1) and the first circular groove (5), two first disc springs (6) are provided, and both of the two first disc springs (6) are sleeved on the outer side of the upper end of the bolt (1), and the directions of the two first disc springs (6) are opposite. A second circular groove (7) is provided on the bottom surface of the traction frame (3). Between the nut (4) and the second circular groove (7), two second disc springs (8) are provided, and both of the two second disc springs (8) are sleeved on the outer side of the bolt (1), and the directions of the two second disc springs (8) are opposite. An annular first clamping groove (9) is provided on the top surface of the nut (4). The first clamping grooves (10) and the first clamping blocks (11) are uniformly provided on the bottom surface of the fixing plate (2), and the first clamping grooves (10) and the first clamping blocks (11) are arranged in a staggered manner on the bottom surface of the fixing plate (2). The second clamping grooves (12) and the second clamping blocks (13) are uniformly provided on the top surface of the traction frame (3), and the second clamping grooves (12) and the second clamping blocks (13) are arranged in a staggered manner on the top surface of the traction frame (3). The first clamping groove (10) is connected to the corresponding second clamping block (13), and the first clamping block (11) is connected to the corresponding second clamping groove (12).
2. The anti-slip device for a bolt according to claim 1, wherein: Two annular second clamping grooves (101) are provided at the upper end of the bolt (1), and two third clamping grooves (102) are provided in each annular clamping groove (101).
3. The anti-slip device for a bolt according to claim 1, characterized in that: The diameter of the first circular groove (5) is larger than the diameter of the first disc spring (6).
4. The anti-slip device for a bolt according to claim 2, characterized in that: The inner hole diameters of the two first disc springs (6) are equal to the diameter of the threaded part of the bolt (1), and the inner hole diameters of the two first disc springs (6) are larger than the diameters of the two annular second clamping grooves (101).
5. The anti-slip device for a bolt according to claim 2, characterized in that: Two third clamping blocks (601) are provided on the inner sides of the two first disc springs (6), and the outer shapes of the two third clamping blocks (601) and the inner shapes of the two third clamping grooves (102) are both semi-circular.
6. The anti-slip device of a bolt according to claim 1, characterized in that: The diameter of the second circular groove (7) is in line with the diameter of the nut (4).
7. The anti-slip device for a bolt according to claim 1, characterized in that: The diameter of the annular first clamping groove (9) is larger than the diameter of the second disc spring (8), and the inner hole diameters of the two second disc springs (8) are larger than the diameter of the threaded part of the bolt (1).
8. The anti-slip device for a bolt according to claim 1, characterized in that: The inner shapes of each of the first clamping grooves (10) and the second clamping grooves (12) and the outer shapes of the corresponding first clamping blocks (11) and the second clamping blocks (13) are conical and match each other.