High-tightness U-shaped bolt

Abstract

The high-tightness U-shaped bolt comprises a U-shaped rod and a clamping plate, a threaded part is arranged on the outer surface of the U-shaped rod, a rotating assembly and a limiting assembly are arranged on the clamping plate, the limiting assembly comprises a fixing plate fixed to the clamping plate, a telescopic rod is fixed to the side, close to the U-shaped rod, of the fixing plate, and a rack is fixed to the end, away from the fixing plate, of the telescopic rod. The outer surface of the telescopic rod is sleeved with a telescopic spring. Through the elastic force generated by the telescopic rod and the telescopic spring, the rack and the gear ring can be always in a meshed state, the gear ring is limited and fixed, the possibility of rotation of the gear ring is reduced, the possibility of looseness of the nut is reduced, the connecting strength of the gear ring is improved, the driving chain wheel can be rotated by rotating the fixing block, and the service life of the driving chain wheel is prolonged. The driving chain wheel can synchronously drive the driven chain wheel to rotate through the chain, the driven chain wheel can drive the nut to rotate through the fixing sleeve, the nut is connected with the U-shaped rod, locking and fixing of the clamping plate are completed, and the connecting efficiency between the nut and the U-shaped rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of U-shaped bolts, in particular to a high-tightness U-shaped bolt. Background Art

[0002] U-bolts, also known as riding bolts, are non-standard parts. They are named because of their U-shaped shape. They have threads at both ends that can be combined with nuts. They are mainly used to fix tubular objects such as water pipes or sheet objects such as car leaf springs. Because the way they fix objects is like a person riding on a horse, they are called riding bolts.

[0003] The inventor discovered during the process of implementing the utility model:

[0004] The patent document with announcement number CN215093266U discloses a U-shaped bolt with high tightness, which connects the output end of the driving mechanism with the first nut and the second nut, starts the driving mechanism, drives the first nut and the second nut to rotate, and the first nut and the second nut drive the clamping plate to move, so that the clamping plate and the U-shaped bolt jointly lock the object to complete the fixation, which is convenient for use. After the connection is completed, the mounting plate is removed from the U-shaped bolt, and the mounting plate drives the driving mechanism to move.

[0005] In the solution of the above patent, the first nut and the second nut are rotated by a driving mechanism, and then the clamp and the U-bolt are used to lock the object together. However, the U-bolt is often used to fix water pipes. Since the water pipes will vibrate during the flow of water, a slight relative displacement will occur between the threaded contact surfaces of the bolts and nuts under long-term vibration. This micro-motion will cause friction and wear on the threaded surface, gradually reducing the friction coefficient of the threaded surface. As the friction force decreases, the locking force between the nut and the bolt will also weaken, causing the nut to gradually loosen, resulting in a decrease in the connection strength. In addition, the process of fixing through a driving mechanism is relatively complicated and increases the cost of use. Summary of the invention

[0006] In order to solve the problems existing in the prior art, the utility model proposes a high-tightness U-bolt, which can prevent the nut from loosening and can quickly lock the nut.

[0007] To this end, the technical solution of the utility model is: a high-tightness U-shaped bolt, comprising a U-shaped rod and a clamping plate, wherein the outer surface of the U-shaped rod is provided with a threaded portion, and the threaded portion is located at both ends of the U-shaped rod, and the clamping plate is provided with a rotating component and a limiting component.

[0008] The limit assembly includes a fixing plate fixed on the upper surface of the clamping plate, a telescopic rod is fixed on one side of the fixing plate close to the U-shaped rod, a rack is fixed on one end of the telescopic rod away from the fixing plate, and a telescopic spring is sleeved on the outer surface of the telescopic rod;

[0009] The rotating assembly includes a fixed sleeve and a fixed rod rotatably connected to the inner wall of the splint, and both ends of the fixed sleeve pass through the splint, the top of the fixed rod passes through the splint, a driven sprocket is fixed to the outer surface of the fixed sleeve, and a driving sprocket is fixed to the outer surface of the fixed rod, the bottom surfaces of the driving sprocket and the driven sprocket are both in contact with the inner bottom wall of the splint, the driving sprocket is connected to the driven sprocket through a chain, the fixed sleeve is in sliding contact with the surface of the splint, and the rotation of the driving sprocket can synchronously drive the driven sprocket to rotate through the transmission of the chain, and the driving sprocket and the driven sprocket are not located on the same parallel line.

[0010] Furthermore, a fixed block is fixed to the top of the fixed rod, and the bottom surface of the fixed block is in contact with the upper surface of the clamping plate. The fixed block can be set to have a shape consistent with the fully automatic gun, so that it can drive the fixed block to rotate, and the rotation of the fixed block can drive the active sprocket to rotate through the fixed rod.

[0011] Furthermore, a nut is fixed to the upper surface of the fixing sleeve, and the bottom surface of the nut contacts the upper surface of the clamping plate. The nut is threadedly connected to the threaded portion, and the fixing sleeve is driven to rotate by the driven sprocket. The rotation of the fixing sleeve can drive the nut to rotate, and then drive the clamping plate to move.

[0012] Furthermore, a toothed ring is fixed on the outer surface of the nut, and the bottom surface of the toothed ring contacts the upper surface of the clamping plate, and the toothed ring is meshed with the rack, so that the position of the nut can be limited and fixed.

[0013] Furthermore, guide heads are provided at both ends of the U-shaped rod to facilitate the insertion of the nut and the fixing sleeve, and a protective pad is provided on the outer surface of the U-shaped portion of the U-shaped rod to protect the contact portion between the U-shaped rod and the parts.

[0014] Beneficial effects: The utility model can keep the rack and the toothed ring in a meshing state at all times through the elastic force generated by the telescopic rod and the telescopic spring, limit and fix the position of the toothed ring, reduce the possibility of rotation of the toothed ring, thereby reducing the possibility of loosening of the nut and improving its connection strength; the active sprocket is rotated by rotating the fixing block, and the active sprocket can synchronously drive the driven sprocket to rotate through the chain, and the driven sprocket can drive the nut to rotate through the fixing sleeve, thereby realizing the connection between the nut and the U-shaped rod, completing the locking and fixing of the splint, and improving the connection efficiency between the nut and the U-shaped rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model.

[0016] Figure 2 It is a front cross-sectional view of the splint of the utility model.

[0017] Figure 3 It is a cross-sectional view of the splint of the utility model.

[0018] Figure 4 yes Figure 1 Enlarged view of point A in the middle.

[0019] As shown in the figure: 1. U-shaped rod; 101. threaded part; 102. protective pad; 103. guide head; 2. splint; 3. rotating assembly; 301. fixed sleeve; 302. driven sprocket; 303. fixed rod; 304. driving sprocket; 305. fixed block; 306. chain; 307. nut; 4. limiting assembly; 401. gear ring; 402. fixed plate; 403. telescopic rod; 404. rack; 405. telescopic spring. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings, but this embodiment should not be understood as a limitation to the present invention.

[0021] The utility model Figures 1 to 4 As shown:

[0022] A high-tightness U-shaped bolt comprises a U-shaped rod 1 and a clamping plate 2. The outer surface of the U-shaped rod 1 is provided with a threaded portion 101, and the threaded portion 101 is located at both ends of the U-shaped rod 1. The clamping plate 2 is provided with a rotating component 3 and a limiting component 4.

[0023] The rotating assembly 3 includes a fixed sleeve 301 and a fixed rod 303 which are rotatably connected to the inner wall of the clamping plate 2, and both ends of the fixed sleeve 301 penetrate the clamping plate 2, and the top end of the fixed rod 303 penetrates the clamping plate 2, and a driven sprocket 302 is fixed to the outer surface of the fixed sleeve 301, and a driving sprocket 304 is fixed to the outer surface of the fixed rod 303, and the bottom surfaces of the driving sprocket 304 and the driven sprocket 302 are in contact with the inner bottom wall of the clamping plate 2;

[0024] The driving sprocket 304 is connected to the driven sprocket 302 through the chain 306, and the fixed sleeve 301 is in sliding contact with the surface of the clamping plate 2. The rotation of the driving sprocket 304 can synchronously drive the driven sprocket 302 to rotate through the transmission of the chain 306. The driving sprocket 304 and the driven sprocket 302 are not located on the same parallel line. A fixing block 305 is fixed to the top of the fixing rod 303, and the bottom surface of the fixing block 305 is in contact with the upper surface of the clamping plate 2. The fixing block 305 can be set to a shape consistent with that of a fully automatic gun, so that it can drive the fixing block 305 to rotate;

[0025] The fixing block 305 is rotated so that the driving sprocket 304 can be rotated through the fixing rod 303. A nut 307 is fixed to the upper surface of the fixing sleeve 301, and the bottom surface of the nut 307 contacts the upper surface of the clamping plate 2. The nut 307 is threadedly connected with the threaded portion 101. The fixing sleeve 301 is rotated through the driven sprocket 302. The rotation of the fixing sleeve 301 can drive the nut 307 to rotate, and then drive the clamping plate 2 to move.

[0026] The driving sprocket 304 can be rotated by rotating the fixing block 305, and the driving sprocket 304 can synchronously drive the driven sprocket 302 to rotate through the chain 306, and the driven sprocket 302 can drive the nut 307 to rotate through the fixing sleeve 301, thereby realizing the connection between the nut 307 and the U-shaped rod 1, completing the locking and fixing of the clamping plate 2, and improving the connection efficiency between the nut 307 and the U-shaped rod 1.

[0027] like Figure 1 and Figure 4 As shown, the limiting assembly 4 includes a fixing plate 402 fixed on the upper surface of the clamping plate 2, a telescopic rod 403 is fixed to the side of the fixing plate 402 close to the U-shaped rod 1, a rack 404 is fixed to the end of the telescopic rod 403 away from the fixing plate 402, a telescopic spring 405 is sleeved on the outer surface of the telescopic rod 403, a toothed ring 401 is fixed to the outer surface of the nut 307, and the bottom surface of the toothed ring 401 is in contact with the upper surface of the clamping plate 2, and the toothed ring 401 is meshed with the rack 404, so as to limit and fix the position of the nut 307;

[0028] The elastic force generated by the telescopic rod 403 and the telescopic spring 405 can keep the rack 404 and the gear ring 401 in a meshing state at all times, thereby limiting and fixing the position of the gear ring 401, reducing the possibility of rotation of the gear ring 401, thereby reducing the possibility of loosening of the nut 307 and improving its connection strength.

[0029] like Figure 1 As shown, guide heads 103 are provided at both ends of the U-shaped rod 1, which can facilitate the insertion of the nut 307 and the fixing sleeve 301, and a protective pad 102 is provided on the outer surface of the U-shaped part of the U-shaped rod 1 to protect the part where the U-shaped rod 1 contacts the parts.

[0030] The working principle of this utility model:

[0031] When in use, the opening of the U-shaped rod 1 is directed toward the object to be locked, the U-shaped rod 1 is put on the object, and then the fixing sleeve 301 and the nut 307 on the clamping plate 2 are passed through the guide head 103, and then the rack 404 is pulled to disengage the rack 404 from the gear ring 401, and then the fixing sleeve 301 is connected to the automatic gun, and starting the automatic gun can drive the fixing block 305 and the driving sprocket 304 to rotate, and the driving sprocket 304 can synchronously drive the driven sprocket 302 to rotate through the chain 306, and the driven sprocket 302 can rotate through the fixing sleeve 30 1 drives the nut 307 to rotate, thereby realizing the connection between the nut 307 and the U-shaped rod 1, completing the locking and fixing of the clamping plate 2, and improving the connection efficiency between the nut 307 and the U-shaped rod 1, and then using the rack 404 to squeeze the telescopic rod 403 and the elastic force generated by the telescopic spring 405, the rack 404 and the toothed ring 401 are always in a meshing state, so that the position of the toothed ring 401 is limited and fixed, reducing the possibility of the toothed ring 401 rotating, thereby reducing the possibility of the nut 307 loosening, and improving its connection strength.

[0032] Parts not described in detail in this specification are well-known technologies in the art.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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. A high-tightness U-shaped bolt, comprising a U-shaped rod (1) and a clamping plate (2), characterized in that: The outer surface of the U-shaped rod (1) is provided with a threaded portion (101), and the threaded portion (101) is located at both ends of the U-shaped rod (1), and the clamping plate (2) is provided with a rotating component (3) and a limiting component (4); The limiting assembly (4) comprises a fixing plate (402) fixed to the upper surface of the clamping plate (2); a telescopic rod (403) is fixed to a side of the fixing plate (402) close to the U-shaped rod (1); a rack (404) is fixed to an end of the telescopic rod (403) away from the fixing plate (402); and a telescopic spring (405) is sleeved on the outer surface of the telescopic rod (403); The rotating assembly (3) comprises a fixed sleeve (301) and a fixed rod (303) rotatably connected to the inner wall of the clamping plate (2), and both ends of the fixed sleeve (301) penetrate the clamping plate (2), and the top end of the fixed rod (303) penetrates the clamping plate (2). A driven sprocket (302) is fixed to the outer surface of the fixed sleeve (301), and a driving sprocket (304) is fixed to the outer surface of the fixed rod (303). The bottom surfaces of the driving sprocket (304) and the driven sprocket (302) are in contact with the inner bottom wall of the clamping plate (2), and the driving sprocket (304) is connected to the driven sprocket (302) through a chain (306).

2. A high-tightness U-bolt according to claim 1, characterized in that: A fixing block (305) is fixed to the top end of the fixing rod (303), and the bottom surface of the fixing block (305) is in contact with the upper surface of the clamping plate (2).

3. A high-tightness U-bolt according to claim 1 or 2, characterized in that: A nut (307) is fixed to the upper surface of the fixing sleeve (301), and the bottom surface of the nut (307) is in contact with the upper surface of the clamping plate (2), and the nut (307) is threadedly connected to the threaded portion (101).

4. A high-tightness U-bolt according to claim 3, characterized in that: A toothed ring (401) is fixed to the outer surface of the nut (307), and the bottom surface of the toothed ring (401) is in contact with the upper surface of the clamping plate (2), and the toothed ring (401) is meshed with the rack (404).

5. A high-tightness U-bolt according to claim 1, 2 or 4, characterized in that: Both ends of the U-shaped rod (1) are provided with guide heads (103), and the outer surface of the U-shaped portion of the U-shaped rod (1) is provided with a protective pad (102).

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