A type of anti-detachment tight-fitting clamp

By welding mounting brackets and extension rods onto the semi-circular body of the clamp, and combining fastening and connecting units, the problem of easy bolt loosening was solved, achieving stability and tightness in the pipe connection.

CN224454015UActive Publication Date: 2026-07-03WEIFANG JUNTONG MASCH SUPPORTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIFANG JUNTONG MASCH SUPPORTING CO LTD
Filing Date
2025-09-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The bolts of existing pipe connection devices are prone to falling off the semi-circular rings, resulting in loss, and there is a lack of effective connection structure.

Method used

A tight-fitting clamp designed to prevent detachment is used. By welding a mounting bracket and an extension rod onto a semi-circular ring, and connecting bolts with the extension rod and mounting plate, a stable connection of the bolts is achieved by combining fastening units and connecting units, and tight fixing is achieved through protrusions and grooves.

Benefits of technology

This effectively prevents bolts from falling off during disassembly, ensuring the stability and tightness of the pipe connection and avoiding the problem of bolt loss.

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Abstract

This utility model belongs to the field of clamp technology, specifically a tight-connection clamp designed to prevent detachment. It includes a first semi-circular ring, a second semi-circular ring, and a pipe body. A first mounting bracket is welded to the ends of both the first and second semi-circular rings. A first bolt is threaded onto each mounting bracket. An extension rod is welded to the end of each first bolt. A mounting plate is provided on one side of the extension rod, and the end of the extension rod is rotatably connected to the mounting plate via a bearing. By using the extension rod, mounting plate, and extension rod, the first bolt can be unscrewed from the first mounting bracket. When the first bolt is screwed down, the extension rod, mounting plate, and extension rod act as a connection, preventing the first bolt from detaching from the first and second semi-circular rings after unscrewing. This solves the problem in existing devices where the bolt body and the semi-circular ring lack a connecting structure, and the bolt body easily detaches and is lost after the clamp is removed from the pipe.
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Description

Technical Field

[0001] This utility model belongs to the field of clamp technology, specifically a clamp for preventing loosening and tight connection. Background Technology

[0002] Pipe clamps are commonly used in the form of ring-shaped metal components. The function of pipe clamps is to connect two pipes and fix them together.

[0003] CN105257933A discloses a sealing clamp, comprising an annular cylindrical body, the body being divided into a left semicircular ring and a right semicircular ring. Both the left and right ends of the left semicircular ring and the right semicircular ring have connecting portions. Bolt holes are provided in the connecting portions of both the left and right semicircular rings. The left and right semicircular rings are connected by bolts to form an annular through-hole that engages with the outer wall of a winding tube. Both the left and right semicircular rings have circumferentially arranged reinforcing ribs on their outer walls. To avoid affecting the overall structural strength, an annular groove is created at the optimal location for the reinforcing ribs.

[0004] The existing technology described above features an annular groove, which enhances the overall structural strength. However, during use, the two semicircular rings of the clamp are fixed together by three bolts. Since there is no connection between the bolts and the semicircular rings, the bolts are prone to falling off the semicircular rings and being lost after the clamp is removed from the pipe. Therefore, a tight-fitting clamp designed to prevent falling off is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model proposes a tight-fitting clamp that prevents detachment.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The anti-detachment tight-connection clamp of this utility model includes a first semi-circular ring, a second semi-circular ring, and a pipe body; the ends of the first and second semi-circular rings are welded and fixed with a first mounting bracket, and a first bolt is threadedly installed on the first mounting bracket. An extension rod is welded and fixed to the end of the first bolt. A mounting plate is provided on one side of the extension rod, and the end of the extension rod is rotatably connected to the mounting plate through a bearing. A chain is welded and fixed to the side of the mounting plate away from the extension rod. The ends of the chain away from the mounting plate are respectively welded and fixed to the first and second semi-circular rings. A nut is threaded on the end of the first bolt away from the extension rod. A connecting unit is provided on the first mounting bracket.

[0007] Preferably, an extension plate is welded and fixed to the nut, and there are two extension plates. The two extension plates are fixed in a cross shape. A screw of No. 1 is provided through one side of the first mounting bracket. The first mounting bracket is fixed to the first semi-circular ring and the second semi-circular ring respectively by the screw of No. 1. A second mounting bracket is welded and fixed to the first mounting bracket. The second mounting bracket is welded and fixed to the first semi-circular ring and the second semi-circular ring respectively.

[0008] Preferably, a connecting unit is provided at the connection between the first semicircular ring and the second semicircular ring. The connecting unit includes a first connecting frame, which is disposed on the first semicircular ring. A second connecting frame is disposed on the second semicircular ring. A connecting shaft is provided between the first connecting frame and the second connecting frame. Both the first connecting frame and the second connecting frame are rotatably mounted on the connecting shaft.

[0009] Preferably, both the first and second connecting frames are provided with second screws, and the second connecting frame and the first connecting frame are respectively fixed to the second semi-circular ring and the first semi-circular ring by the second screws. A third mounting frame is welded and fixed to both the first and second connecting frames, and the third mounting frame is respectively welded and fixed to the first semi-circular ring and the second semi-circular ring.

[0010] Preferably, the connecting unit includes an upper hinge frame, which is rotatably mounted on a first mounting bracket on the front side of the first semi-circular ring via a pivot, and a lower hinge frame is rotatably mounted on a first mounting bracket on the back side of the first semi-circular ring via a pivot.

[0011] Preferably, fastening units are provided on the inner walls of the first semicircular ring and the second semicircular ring. The fastening unit includes a first snap-fit ​​semicircular ring, which is welded and fixed to the inner wall of the second semicircular ring. The second snap-fit ​​semicircular ring is welded and fixed to the inner wall of the first semicircular ring.

[0012] Preferably, protrusions are uniformly welded and fixed on the inner walls of both the first and second snap-fit ​​semicircular rings, and a fixing ring is welded and fixed on the outer surface of the pipe body, with grooves uniformly formed on the outer surface of the fixing ring.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model provides a tight-fitting anti-detachment clamp. By setting an extension rod, a mounting plate and an extension rod, when the No. 1 bolt is unscrewed from the first mounting bracket, the extension rod, the mounting plate and the extension rod play a connecting role, preventing the No. 1 bolt from falling off from the No. 1 semi-circular ring and the No. 2 semi-circular ring after being unscrewed. This solves the problem that the bolt body and the semi-circular ring of the existing device do not have a connecting structure, and the bolt body is easy to fall off and be lost from the semi-circular ring after the clamp is removed from the pipe.

[0015] 2. This utility model provides a tight-fitting clamp that prevents detachment. By setting a fastening unit, the first semi-circular ring and the second semi-circular ring are fitted onto the pipe body joint, so that the protrusions on the first and second semi-circular rings respectively engage with the grooves. The protrusions and grooves limit the pipe body and achieve a tight connection. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a frontal perspective view of the structure of this utility model;

[0018] Figure 2 This is a perspective view of the structure from the side in this utility model;

[0019] Figure 3 This is a top-view perspective view of the structure of this utility model;

[0020] Figure 4 This is a perspective view of the first mounting bracket in this utility model;

[0021] Figure 5 This is a perspective view of the disassembled fastening unit in this utility model.

[0022] Legend:

[0023] 110. First semicircular ring; 111. Second semicircular ring; 112. First mounting bracket; 113. First bolt; 114. Extension rod; 115. Mounting plate; 116. Chain; 117. Nut; 118. Extension plate; 119. First screw; 120. Pipe body; 121. Second mounting bracket; 200. Connecting unit; 210. Upper hinge bracket; 211. Lower hinge bracket; 300. Fastening unit; 310. First snap-fit ​​semicircular ring; 311. Second snap-fit ​​semicircular ring; 312. Protrusion; 313. Fixing ring; 314. Groove; 400. Connecting unit; 410. First connecting bracket; 411. Connecting shaft; 412. Second connecting bracket; 413. Second screw; 414. Third mounting bracket. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figure 1-4This utility model provides a tight-fitting anti-detachment clamp, including a first semicircular ring 110, a second semicircular ring 111, and a pipe body 120. A first mounting bracket 112 is welded to the ends of both the first and second semicircular rings 110 and 111. A first bolt 113 is threaded onto each mounting bracket 112. An extension rod 114 is welded to the end of each bolt 113. A mounting plate 115 is provided on one side of the extension rod 114. The end of the extension rod 114 is rotatably connected to the mounting plate 115 via a bearing. A chain 116 is welded to the side of the mounting plate 115 away from the extension rod 114. The ends of the chain 116 away from the mounting plate 115 are welded to the first and second semicircular rings 110 and 111, respectively. The bolt 113 is located away from the extension rod 114. The end thread is provided with a nut 117, and the first mounting bracket 112 is provided with a connecting unit 200. The first semi-circular ring 110 and the second semi-circular ring 111 are used to connect and fix the two pipe bodies 120. When it is necessary to remove the first semi-circular ring 110 and the second semi-circular ring 111 from the pipe body 120 to separate the two pipe bodies 120, the first bolt 113 is unscrewed from the first mounting bracket 112. When the first bolt 113 is screwed, the extension rod 114, the mounting plate 115 and the extension rod 114 play a connecting role, preventing the first bolt 113 from falling off the first semi-circular ring 110 and the second semi-circular ring 111 after being unscrewed. This solves the problem that the bolt body of the existing device does not have a connecting structure between the bolt body and the semi-circular ring, and the bolt body is easy to fall off and be lost after the clamp is removed from the pipe.

[0027] Furthermore, such as Figure 4 As shown, an extension plate 118 is welded and fixed to the nut 117. There are two extension plates 118, which are fixed in a cross shape. A screw 119 is provided through one side of the first mounting bracket 112. The first mounting bracket 112 is fixed to the first semi-circular ring 110 and the second semi-circular ring 111 respectively by the screw 119. A second mounting bracket 121 is welded and fixed to the first mounting bracket 112. The second mounting bracket 121 is welded and fixed to the first semi-circular ring 110 and the second semi-circular ring 111 respectively. The extension plates 118 make it convenient for workers to screw the nut 117 onto the bolt 113, which is convenient for use.

[0028] Furthermore, a connection unit 400 is provided at the connection between the first semicircular ring 110 and the second semicircular ring 111. The connection unit 400 includes a first connection frame 410, which is disposed on the first semicircular ring 110. A second connection frame 412 is disposed on the second semicircular ring 111. A connection shaft 411 is provided between the first connection frame 410 and the second connection frame 412. Both the first connection frame 410 and the second connection frame 412 are rotatably mounted on the connection shaft 411.

[0029] Furthermore, both the first connecting frame 410 and the second connecting frame 412 are equipped with second screws 413. The second connecting frame 412 and the first connecting frame 410 are respectively fixed to the second semi-circular ring 111 and the first semi-circular ring 110 by the second screws 413. A third mounting frame 414 is welded and fixed to both the first connecting frame 410 and the second connecting frame 412. The third mounting frame 414 is respectively welded and fixed to the first semi-circular ring 110 and the second semi-circular ring 111. The connecting unit 400 is used to connect the first semi-circular ring 110 and the second semi-circular ring 111. The first semi-circular ring 110 and the second semi-circular ring 111 can move around the connecting shaft 411. The connecting unit 400 is like a hinge structure.

[0030] Furthermore, the connecting unit 200 includes an upper hinge frame 210, which is rotatably mounted on a first mounting bracket 112 on the front side of the first semi-circular ring 110 via a pivot. A lower hinge frame 211 is rotatably mounted on the first mounting bracket 112 on the back side of the first semi-circular ring 110 via a pivot. By rotating the upper hinge frame 210 and the lower hinge frame 211, the first bolt 113 is screwed onto the first mounting bracket 112, ensuring that the first bolt 113 passes through the upper hinge frame 210 and the lower hinge frame 211. Then, the nut 117 is screwed onto the first bolt 113 to achieve fixation.

[0031] Furthermore, fastening units 300 are provided on the inner walls of the first semicircular ring 110 and the second semicircular ring 111. The fastening unit 300 includes a first snap-fit ​​semicircular ring 310, which is welded and fixed to the inner wall of the second semicircular ring 111. The second snap-fit ​​semicircular ring 311 is welded and fixed to the inner wall of the first semicircular ring 110.

[0032] Furthermore, protrusions 312 are uniformly welded and fixed on the inner walls of the first snap-fit ​​semicircular ring 310 and the second snap-fit ​​semicircular ring 311. A fixing ring 313 is welded and fixed on the outer surface of the pipe body 120. Grooves 314 are uniformly opened on the outer surface of the fixing ring 313. When fixing the pipe body 120, the first semicircular ring 110 and the second semicircular ring 111 are placed on the joint of the pipe body 120, so that the protrusions 312 on the first snap-fit ​​semicircular ring 310 and the second snap-fit ​​semicircular ring 311 respectively snap into the grooves 314. The protrusions 312 and the grooves 314 limit the position of the pipe body 120.

[0033] Working principle: The first semicircular ring 110 and the second semicircular ring 111 are used to connect and fix the two pipe bodies 120. When it is necessary to remove the first semicircular ring 110 and the second semicircular ring 111 from the pipe body 120 to separate the two pipe bodies 120, the first bolt 113 is unscrewed from the first mounting bracket 112. When the first bolt 113 is screwed, the extension rod 114, the mounting plate 115 and the extension rod 114 play a connecting role, preventing the first bolt 113 from falling off the first semicircular ring 110 and the second semicircular ring 111 after being unscrewed. This solves the problem that the bolt body of the existing device does not have a connecting structure between the bolt body and the semicircular ring, and the bolt body is easy to fall off and be lost after the clamp is removed from the pipe. When fixing the pipe body 120, the first semi-circular ring 110 and the second semi-circular ring 111 are fitted onto the joint of the pipe body 120, so that the protrusions 312 on the first snap-fit ​​semi-circular ring 310 and the second snap-fit ​​semi-circular ring 311 respectively snap into the grooves 314, and the protrusions 312 and the grooves 314 limit the position of the pipe body 120.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fall-preventing tight connection type clamp, comprising a first semicircular ring body (110), a second semicircular ring body (111) and a pipe body (120); characterized in that: Both the first semicircular ring (110) and the second semicircular ring (111) are welded to the ends of a first mounting bracket (112). A first bolt (113) is threaded onto each of the first mounting brackets (112). An extension rod (114) is welded to the end of each bolt (113). A mounting plate (115) is provided on one side of the extension rod (114). The end of the extension rod (114) is rotatably connected to the mounting plate (115) via a bearing. 5) On the side of the mounting plate (115) away from the extension rod (114), a chain (116) is welded and fixed. The ends of the chain (116) away from the mounting plate (115) are welded and fixed to the first semi-circular ring (110) and the second semi-circular ring (111) respectively. The end of the first bolt (113) away from the extension rod (114) is threaded with a nut (117). A connecting unit (200) is provided on the first mounting frame (112).

2. The anti-drop tight connection type clamp according to claim 1, characterized in that: An extension plate (118) is welded and fixed to the nut (117). There are two extension plates (118), which are fixed in a cross shape. A screw (119) is provided through one side of the first mounting bracket (112). The first mounting bracket (112) is fixed to the first semi-circular ring (110) and the second semi-circular ring (111) respectively by the screw (119). A second mounting bracket (121) is welded and fixed to the first mounting bracket (112). The second mounting bracket (121) is welded and fixed to the first semi-circular ring (110) and the second semi-circular ring (111) respectively.

3. The anti-drop tight connection type clamp according to claim 1, characterized in that: A connecting unit (400) is provided at the connection between the first semicircular ring (110) and the second semicircular ring (111). The connecting unit (400) includes a first connecting frame (410), which is disposed on the first semicircular ring (110). A second connecting frame (412) is disposed on the second semicircular ring (111). A connecting shaft (411) is provided between the first connecting frame (410) and the second connecting frame (412). Both the first connecting frame (410) and the second connecting frame (412) are rotatably mounted on the connecting shaft (411).

4. The anti-drop tight connection type clamp according to claim 3, characterized in that: Both the first connector (410) and the second connector (412) are provided with second screws (413). The second connector (412) and the first connector (410) are respectively fixed to the second semi-circular ring (111) and the first semi-circular ring (110) by the second screws (413). A third mounting bracket (414) is welded and fixed to both the first connector (410) and the second connector (412). The third mounting bracket (414) is respectively welded and fixed to the first semi-circular ring (110) and the second semi-circular ring (111).

5. The anti-detachment tight-connection clamp according to claim 1, characterized in that: The connecting unit (200) includes an upper hinge frame (210), which is rotatably mounted on a first mounting frame (112) on the front side of a first semi-circular ring (110) via a pivot. A lower hinge frame (211) is rotatably mounted on the first mounting frame (112) on the back side of the first semi-circular ring (110) via a pivot.

6. The anti-drop tight connection type clamp according to claim 1, characterized in that: Fastening units (300) are provided on the inner walls of the first semicircular ring (110) and the second semicircular ring (111). The fastening unit (300) includes a first snap-fit ​​semicircular ring (310), which is welded and fixed to the inner wall of the second semicircular ring (111). The second snap-fit ​​semicircular ring (311) is welded and fixed to the inner wall of the first semicircular ring (110).

7. The anti-drop tight connection type clamp according to claim 6, characterized in that: Both the first snap-fit ​​semicircular ring (310) and the second snap-fit ​​semicircular ring (311) have protrusions (312) uniformly welded and fixed on their inner walls. The outer surface of the pipe body (120) has a fixing ring (313) welded and fixed on its outer surface. The outer surface of the fixing ring (313) is uniformly provided with grooves (314).