High-strength anti-loosening bolt structure for fastening tank body
By introducing traction and locking and snap-in anti-loosening components into the bolt structure, the loosening problem of bolts in vibrating environments is solved by using friction resistance and limiting forces to ensure the sealing of the tank.
Patent Information
- Application Number
- CN202422883644.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The existing bolt structure is prone to loosening in vibrating environments, resulting in a degradation of the sealing performance of the tank and a risk of medium leakage.
Traction and locking and clamping anti-loosening components are adopted, including pulling rubber bands, pressing plates, internal thread sleeves and elastic pressing plates, etc., to prevent the bolt from loosening through friction resistance and limiting force.
Effectively prevent the bolt from loosening under vibration conditions, maintain the sealing performance of the tank, and avoid media leakage.
Smart Images
Figure CN223257285U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bolt structures, in particular to a high-strength anti-loosening bolt structure for fastening a tank body. Background Art
[0002] In the chemical industry, there are a large number of tanks used to store various chemicals. The environment in which these tanks are located is usually harsh and may be affected by factors such as chemical corrosion, temperature changes, and vibration. Therefore, bolts are needed to ensure that the tanks remain tight under these complex working conditions.
[0003] When the existing bolt structure is in use, when the tank body is in a vibrating transportation environment, the bolts will be continuously affected by the vibration. Long-term vibration will cause the bolts to gradually loosen. Once loosened, the sealing performance of the tank body will decrease, which may easily cause the medium inside the tank to leak out.
[0004] Therefore, a high-strength anti-loosening bolt structure for fastening the tank body is proposed to solve the problem that the bolt structure is easy to loosen in a vibrating environment, resulting in a decrease in the sealing performance of the tank body. Utility Model Content
[0005] In order to overcome the problem that the bolt structure will be constantly affected by vibration when the tank is in a vibrating transportation environment during use, and long-term vibration will gradually loosen the bolts. Once loosened, the sealing performance of the tank will decrease, which may easily lead to leakage of the medium inside the tank. Therefore, a high-strength anti-loosening bolt structure is proposed for fastening the tank.
[0006] The technical solution of the utility model is as follows: a high-strength anti-loosening bolt structure for fastening a tank body comprises a nut and a fastening screw, a bolt head, a traction-type anti-loosening assembly and a locking and snap-fit anti-loosening assembly; the internal thread of the nut is connected to the fastening screw; the upper end of the fastening screw is fixedly connected to the bolt head; the side end of the nut is provided with a traction-type anti-loosening assembly; the lower end of the nut is provided with a locking and snap-fit anti-loosening assembly; the traction-type anti-loosening assembly comprises a first connecting block, a pressing plate and a traction pull plate; the side end of the nut is fixedly connected to the first connecting block; the side end of the first connecting block is hingedly connected to the pressing plate; the upper end of the pressing plate is hingedly connected to the traction pull plate.
[0007] Preferably, during the use of the bolt structure, after the pulling rubber band in the traction type anti-loosening assembly is locked between the nut and the fastening screw, the pulling rubber band is put into the gap between the clamping tooth plates above the bolt head, and then the pressing plate is pressed down, so that the traction pull plate hinged above the pressing plate drives the pulling rubber band to be pulled to the side and downward, which can limit the bolt head from all sides to prevent it from vibrating and causing the overall large thread of the bolt to loosen. When the fastening screw is adjusted to a suitable position, the internal threaded sleeve in the locking clamping type anti-loosening assembly is rotated to make it move on the threaded connection tube outside the fastening screw, so that it is squeezed to the elastic pressure plate during the descending process, so that the hook on the inner side of the elastic pressure plate is buckled on the outer wall of the fastening screw, which plays a certain limiting force to prevent the fastening screw from loosening.
[0008] Preferably, the traction-type anti-loosening assembly also includes a pulling rubber band, a clamping tooth plate, a second connecting block, a tension spring, a groove, a corrugated rubber gasket and an anti-slip bottom pad; the upper end of the traction pull plate is fixed with a pulling rubber band.
[0009] Preferably, a plurality of engaging tooth plates are provided in an annular shape on the upper end of the bolt head; a second connecting block is fixedly connected to the lower end of the pressing plate; and a tension spring is hinged to the side end of the nut.
[0010] Preferably, the upper end of the tension spring is hinged to the inner side of the second connecting block; and the lower end of the bolt head is provided with a groove.
[0011] Preferably, a corrugated rubber washer is adhered to the inside of the groove; and a non-slip bottom pad is adhered to the upper end of the nut.
[0012] Preferably, the locking and snap-fitting anti-loosening assembly includes a threaded connection tube, an internally threaded sleeve, an elastic pressure plate and a hook; the lower end of the nut is fixedly connected to the threaded connection tube.
[0013] Preferably, the outer end of the threaded connection cylinder is threadedly connected to the internal threaded sleeve; the lower end of the threaded connection cylinder is hinged to an elastic pressure plate; and the inner end of the elastic pressure plate is fixed with a hook.
[0014] The beneficial effects of the utility model are as follows: during use of the bolt structure, after the pulling rubber band is locked between the nut and the fastening screw, the pulling rubber band is sleeved in the gap between the clamping tooth plate above the bolt head, and then the pressing plate is pressed down, so that the traction pull plate hinged above the pressing plate drives the pulling rubber band to be pulled laterally and downwardly, which can limit the bolt head from all sides to prevent the loosening of the overall large thread of the bolt due to vibration. When the bolt head contacts the upper surface of the nut, the corrugated rubber washer under the bolt head and the anti-slip bottom pad on the upper surface of the nut are in close contact, which increases the friction resistance and can further prevent loosening. When the internal threaded sleeve is adjusted to a suitable position, the internal threaded sleeve is rotated to make it move on the threaded connection cylinder outside the fastening screw, so that it is squeezed to the elastic pressure plate during the descending process, so that the hook inside the elastic pressure plate is buckled on the outer wall of the fastening screw, which plays a certain limiting force and prevents the fastening screw from loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 Shown is a three-dimensional structural schematic diagram of the bolt structure of the present utility model;
[0016] Figure 2 Shown is a schematic diagram of the three-dimensional structure of the pulling rubber band of the bolt structure of the utility model;
[0017] Figure 3 Shown is a schematic diagram of the three-dimensional structure of the corrugated rubber washer of the bolt structure of the present invention;
[0018] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the hook of the bolt structure of the present invention.
[0019] Explanation of the accompanying drawings: 1. Nut; 2. Fastening screw; 3. Bolt head; 401. First connecting block; 402. Pressing plate; 403. Traction plate; 404. Pulling rubber band; 405. Snap-on tooth plate; 406. Second connecting block; 407. Tension spring; 408. Groove; 409. Corrugated rubber washer; 410. Anti-slip bottom pad; 101. Threaded connection cylinder; 102. Internally threaded sleeve; 103. Elastic pressure plate; 104. Hook. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] See also Figures 1-4The utility model provides an embodiment: a high-strength anti-loosening bolt structure for fastening a tank body, comprising a nut 1 and a fastening screw 2, a bolt head 3, a traction-type anti-loosening component and a locking and clamping-type anti-loosening component; the internal thread of the nut 1 is connected to the fastening screw 2; the upper end of the fastening screw 2 is fixedly connected to the bolt head 3; the side end of the nut 1 is provided with a traction-type anti-loosening component; the lower end of the nut 1 is provided with a locking and clamping-type anti-loosening component; the traction-type anti-loosening component comprises a first connecting block 401, a pressing plate 402 and a traction pull plate 403; the side end of the nut 1 is fixedly connected to the first connecting block 401; the side end of the first connecting block 401 is hingedly connected to the pressing plate 402; the upper end of the pressing plate 402 is hingedly connected to the traction pull plate 403.
[0022] See also Figure 2-Figure 3 In this embodiment, the traction type anti-loosening assembly further includes a pulling rubber band 404, a clamping tooth plate 405, a second connecting block 406, a tension spring 407, a groove 408, a corrugated rubber washer 409 and an anti-slip bottom pad 410; the upper end of the traction plate 403 is fixedly connected to the pulling rubber band 404, and the upper end of the bolt head 3 is annularly provided with a plurality of clamping tooth plates 405; the lower end of the pressing plate 402 is fixedly connected to the second connecting block 406; the nut 1 The side end portion is hinged with a tension spring 407, and the upper end portion of the tension spring 407 is hinged to the inner side of the second connecting block 406; the lower end portion of the bolt head 3 is provided with a groove 408, and the inside of the groove 408 is adhered with a corrugated rubber washer 409; the upper end portion of the nut 1 is adhered with a non-slip bottom pad 410; the tension spring 407 cooperates with the damping force at the hinge of the pressing plate 402 and the first connecting block 401, so that it is not easily bounced up by the elastic force of the pulling rubber band 404 after being pressed down.
[0023] See also Figure 4 In this embodiment, the locking and snap-fitting anti-loosening component includes a threaded connection tube 101, an internally threaded sleeve 102, an elastic pressure plate 103 and a hook 104; the lower end of the nut 1 is fixedly connected to the threaded connection tube 101, and the outer end of the threaded connection tube 101 is threadedly connected to the internally threaded sleeve 102; the lower end of the threaded connection tube 101 is hingedly connected to the elastic pressure plate 103; the inner end of the elastic pressure plate 103 is fixedly connected to the hook 104, and the internally threaded sleeve 102 is rotated to make it move on the threaded connection tube 101 outside the fastening screw 2, so that it is squeezed to the elastic pressure plate 103 during the descending process, so that the hook 104 on the inner side of the elastic pressure plate 103 is buckled on the outer wall of the fastening screw 2, which plays a certain limiting force to prevent the fastening screw 2 from loosening.
[0024] When working, first pull the rubber band 404 to lock it between the nut 1 and the fastening screw 2, then put the pulling rubber band 404 into the gap between the clamping tooth plate 405 above the bolt head 3, and then press the pressing plate 402 downward, so that the traction plate 403 hinged above the pressing plate 402 drives the pulling rubber band 404 to be pulled sideways and downward, which can limit the bolt head 3 from all sides and prevent it from loosening the entire large thread of the bolt due to vibration;
[0025] Then, when the bolt head 3 contacts the upper surface of the nut 1, the corrugated rubber washer 409 below the bolt head 3 and the anti-slip bottom pad 410 on the upper surface of the nut 1 are in close contact, which increases the friction resistance and further prevents loosening.
[0026] Finally, when the fastening screw 2 is adjusted to a suitable position using the internal threaded sleeve 102, the internal threaded sleeve 102 is rotated to make it move on the threaded connection tube 101 outside the fastening screw 2, so that it is squeezed onto the elastic pressure plate 103 during the descending process, so that the hook 104 on the inner side of the elastic pressure plate 103 is buckled on the outer wall of the fastening screw 2, which plays a certain limiting force to prevent the fastening screw 2 from loosening.
[0027] Through the above steps, the problem that the bolt structure is easy to loosen in a vibrating environment, resulting in a decrease in the sealing performance of the tank body, is solved. After the pulling rubber band 404 is locked between the nut 1 and the fastening screw 2, the pulling rubber band 404 is put into the gap between the clamping tooth plate 405 above the bolt head 3, and then the pressing plate 402 is pressed down, so that the traction pull plate 403 hinged above the pressing plate 402 drives the pulling rubber band 404 to be pulled to the side and downward, which can limit the bolt head 3 from all sides to prevent the loosening of the overall large thread of the bolt due to vibration, and when the bolt head 3 contacts the upper surface of the nut 1, the corrugated rubber gasket 409 under the bolt head 3 and the anti-slip bottom pad 410 on the upper surface of the nut 1 are in close contact, which increases the friction resistance and can further prevent loosening.
[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.
Claims
1. A high-strength anti-loosening bolt structure for fastening a tank body, comprising a nut (1) and a fastening screw (2); characterized in that: The invention also includes a bolt head (3), a traction-type anti-loosening assembly and a locking-clamping anti-loosening assembly; the internal thread of the nut (1) is connected to the fastening screw (2); the upper end of the fastening screw (2) is fixedly connected to the bolt head (3); the side end of the nut (1) is provided with a traction-type anti-loosening assembly; the lower end of the nut (1) is provided with a locking-clamping anti-loosening assembly; the traction-type anti-loosening assembly includes a first connecting block (401), a pressing plate (402) and a traction pull plate (403); the side end of the nut (1) is fixedly connected to the first connecting block (401); the side end of the first connecting block (401) is hinged to the pressing plate (402); the upper end of the pressing plate (402) is hinged to the traction pull plate (403).
2. The high-strength anti-loosening bolt structure for fastening a tank body according to claim 1, characterized in that: The traction type anti-loosening assembly further comprises a pulling rubber band (404), a clamping tooth plate (405), a second connecting clamping block (406), a tension spring (407), a groove (408), a corrugated rubber washer (409) and an anti-slip bottom pad (410); the upper end of the traction pull plate (403) is fixedly connected to the pulling rubber band (404).
3. The high-strength anti-loosening bolt structure for fastening a tank body according to claim 1, characterized in that: The upper end of the bolt head (3) is provided with a plurality of engaging tooth plates (405) in an annular shape; the lower end of the pressing plate (402) is fixedly connected with a second connecting block (406); and the side end of the nut (1) is hinged with a tension spring (407).
4. The high-strength anti-loosening bolt structure for fastening a tank body according to claim 3, characterized in that: The upper end of the tension spring (407) is hinged to the inner side of the second connecting block (406); the lower end of the bolt head (3) is provided with a groove (408).
5. The high-strength anti-loosening bolt structure for fastening a tank body according to claim 4, characterized in that: A corrugated rubber washer (409) is adhered to the interior of the groove (408); and an anti-slip bottom pad (410) is adhered to the upper end of the nut (1).
6. The high-strength anti-loosening bolt structure for fastening a tank body according to claim 1, characterized in that: The locking and snap-fitting anti-loosening assembly comprises a threaded connection tube (101), an internal threaded sleeve (102), an elastic pressure plate (103) and a hook (104); the lower end of the nut (1) is fixedly connected to the threaded connection tube (101).
7. The high-strength anti-loosening bolt structure for fastening a tank body according to claim 6, characterized in that: The outer end of the threaded connection cylinder (101) is threadedly connected to the internal threaded sleeve (102); the lower end of the threaded connection cylinder (101) is hinged to an elastic pressure plate (103); and the inner end of the elastic pressure plate (103) is fixedly connected to a hook (104).