Small-space bolt connection type strong clamp

Abstract

The utility model relates to the technical field of clamps, and discloses a small-space bolt connection type strong clamp which comprises a rigid clamp, a flexible clamp, a first locking piece, a second locking piece and a fixing piece, the first locking piece is used for locking the rigid clamp to a pipeline, the second locking piece is used for locking the flexible clamp to the pipeline, and the fixing piece is used for fixing the rigid clamp to the pipeline. The first locking pieces and the second locking pieces are arranged in a staggered mode, and the fixing pieces are used for fixing the flexible clamp to the inner side of the rigid clamp. According to the clamp, the sealing effect of the joint of the clamp can be improved, and meanwhile the connecting strength of the clamp can be guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of clamps, and in particular to a high-strength clamp for small-space bolt connection. Background Technology

[0002] Clamps are a common type of mechanical connector, widely used in pipelines, equipment and other fields to achieve a secure connection between two components.

[0003] In existing technology, clamps are generally two-piece structures, with two semi-rings made of high-strength metal. The two ends of the semi-rings are tightened with bolts and nuts to fit the clamp onto the connection of two pipes, thereby locking the two connected pipes.

[0004] However, the above methods have high requirements for the compatibility and roundness of the pipe. Otherwise, the connection and locking effect may be poor due to the small contact area between the clamp and the pipe. At the same time, the clamp half ring is a rigid structure, which cannot adapt when the pipe is deformed, which can easily lead to sealing failure and leakage. Utility Model Content

[0005] To improve the sealing effect at the clamp connection, this application provides a high-strength clamp with small-space bolt connection.

[0006] This application provides a high-strength bolt-connection clamp for small spaces, employing the following technical solution:

[0007] A high-strength bolt-connection clamp for small spaces includes a rigid clamp, a flexible clamp, a first locking member, a second locking member, and a fixing member. The first locking member is used to lock the rigid clamp onto the pipe, the second locking member is used to lock the flexible clamp onto the pipe, the first locking member and the second locking member are alternately arranged, and the fixing member is used to fix the flexible clamp to the inside of the rigid clamp.

[0008] By adopting the above technical solution, the combination of rigid and flexible clamps can simultaneously meet the strength and adaptability requirements of the connection structure. The rigid clamp provides the main support function, ensuring the stability of the connection, while the flexible clamp provides additional adaptability and sealing performance when the pipe shape is irregular or deformed. The staggered arrangement of the first and second locking elements avoids the possibility of interference at the connection between the rigid and flexible clamps, enabling the overall structure to achieve efficient locking within a limited space.

[0009] Optionally, the rigid clamp includes two rigid semi-rings, one end of which is hinged to each other to form a hinge point, and the other end of which is locked to each other by the first locking member.

[0010] By adopting the above technical solution, the rigid clamp consists of two rigid semi-rings, one end of which is hinged to form a hinge point, and the other end is locked by the first locking element. This structure allows the rigid clamp to be easily opened and fitted onto the pipe during installation, while ensuring stability after locking and improving the reliability of the connection. The hinge design reduces the operational difficulty of the rigid clamp during installation and adapts to the installation requirements in small spaces.

[0011] Optionally, the first locking element includes a positioning lug, a threaded lug, and a first bolt. The positioning lug and the threaded lug are respectively disposed at the ends of the two rigid semi-rings away from the hinge point. The first bolt can pass through the positioning lug and be threadedly connected to the threaded lug.

[0012] By adopting the above technical solution, the positioning lug and the threaded lug are respectively set at the ends of the two rigid semi-rings away from the hinge point. The first bolt can pass through the positioning lug and be threadedly connected to the threaded lug, thereby achieving the locking of the rigid clamp. This solution can ensure the stable connection of the rigid clamp on the pipeline, improve the reliability of the connection, and simplify the locking operation, making it easy to install and disassemble.

[0013] Optionally, the flexible clamp includes two flexible semi-rings, and each of the two flexible semi-rings is provided with a connecting ring at one end near the hinge point of the two rigid semi-rings. The inner sidewall of the rigid semi-ring is provided with a slot for the connecting ring to be inserted. The slot extends axially along the rigid semi-ring to the surface, and a connecting groove is provided between the slot and the inner sidewall of the rigid plate for the flexible semi-ring to pass through.

[0014] By adopting the above technical solution, the two flexible semi-rings of the flexible clamp engage with the slots on the rigid semi-ring via connecting inserts, allowing the flexible clamp to be stably installed inside the rigid clamp. The design of the slots extending axially along the surface of the rigid semi-rings facilitates the insertion and positioning of the connecting inserts, while the connecting grooves allow the flexible semi-rings to pass through and unfold smoothly. This design not only enhances the sealing performance of the clamp when the pipe deforms but also simplifies the installation process and improves the overall reliability of the connection.

[0015] Optionally, the fixing member is a third bolt, and the rigid semi-ring has a threaded groove on the bottom wall of the slot for the third bolt to be threadedly connected. The third bolt can pass through the connecting ring and be threadedly connected to the threaded groove.

[0016] By adopting the above technical solution, the fastener uses a third bolt design, which enables the flexible clamp to be firmly fixed to the inside of the rigid clamp.

[0017] Optionally, the second locking element includes a positioning post, a threaded post, and a second bolt. The positioning post and the threaded post are respectively disposed on the outer side wall of the two flexible semi-rings away from the connecting ring. The second bolt can pass through the positioning post and be threadedly connected to the threaded post.

[0018] By adopting the above technical solution, the positioning post and the threaded post are respectively set on the outer wall of the end of the two flexible semi-rings away from the connecting ring. The second bolt can pass through the positioning post and be threadedly connected to the threaded post, thereby realizing the locking of the flexible clamp. This design enables the flexible clamp to adapt to changes in the shape of the pipeline, improving the reliability of the connection and the sealing performance.

[0019] Optionally, one of the flexible semi-rings is provided with a tab at the end away from the connecting ring, the tab being able to be inserted into the inside of the other flexible semi-ring.

[0020] By adopting the above technical solution, the insert allows the two flexible semi-rings to achieve initial positioning and partial overlap when connected, thereby improving the overall stability and sealing performance of the flexible clamp.

[0021] Optionally, the inner wall of the flexible semi-ring is provided with anti-slip texture.

[0022] By adopting the above technical solution, the anti-slip texture can increase the friction between the flexible semi-ring and the pipe, thereby effectively improving the locking effect of the clamp on the pipe.

[0023] Optionally, a clearance hole is provided at the end of the rigid semi-ring away from the hinge point. The clearance hole extends circumferentially through to the side wall of the positioning lug or the threaded lug. Both the positioning post and the threaded post are disposed in the clearance hole.

[0024] By adopting the above technical solution, the clearance hole allows the positioning pin and threaded pin to be accommodated, thereby effectively reducing the overall radial dimension of the clamp and facilitating installation and operation in confined spaces. Simultaneously, the design of the clearance hole extending circumferentially through the sidewall of the positioning lug or threaded lug further optimizes the structural layout, ensuring that the cooperation between the first and second locking components is uninterrupted.

[0025] In summary, this application includes at least one of the following beneficial effects:

[0026] 1. Through the combined design of rigid and flexible clamps, the rigid clamps provide the main support and locking force, while the flexible clamps can adapt to the irregular shape and dynamic deformation of the pipeline, which significantly improves the stability and sealing of the connection.

[0027] 2. The first and second locking parts are staggered, which effectively reduces the overall radial dimension of the clamp, making it easier to install and operate in small spaces. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0029] Figure 2 This is an exploded structural diagram of an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Rigid clamp; 11. Rigid semi-ring; 111. Slot; 112. Clearance hole; 2. Flexible clamp; 21. Flexible semi-ring; 211. Connecting ring; 22. Insert; 3. First locking element; 31. Positioning lug; 32. Threaded lug; 33. First bolt; 4. Second locking element; 41. Positioning post; 42. Threaded post; 43. Second bolt; 5. Fixing element; 51. Third bolt. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0032] This application discloses a high-strength bolt-connection clamp for small spaces. (Refer to...) Figure 1 The system includes a rigid clamp 1, a flexible clamp 2, a first locking element 3, a second locking element 4, and a fixing element 5. The first locking element 3 locks the rigid clamp 1 to the pipe, and the second locking element 4 locks the flexible clamp 2 to the pipe. The first locking element 3 and the second locking element 4 are staggered to prevent interference between them. The fixing element 5 fixes the flexible clamp 2 to the inside of the rigid clamp 1. This dual-structure design increases the connection area between the flexible clamp 2 and the pipe, improving the connection effect between the two pipes, while the rigid clamp 1 ensures the connection strength at the joint. This effectively solves the problems of high pipe compatibility requirements and poor deformation adaptability of existing clamps.

[0033] Reference Figure 1 and Figure 2 In this embodiment, the rigid clamp 1 includes two rigid semi-rings 11. The rigid semi-rings 11 can be made of high-strength steel, such as stainless steel or carbon steel, to ensure their strength and durability. The shape of the rigid semi-rings 11 can be circular or elliptical, depending on the actual application requirements. The two rigid semi-rings 11 are hinged at one end to form a hinge point, and the other end is locked together by the first locking member 3, thereby reducing one connection point and improving construction efficiency.

[0034] Reference Figure 1 and Figure 2In this embodiment, the first locking member 3 includes a positioning lug 31, a threaded lug 32, and a first bolt 33. The positioning lug 31 and the threaded lug 32 are respectively disposed at the ends of the two rigid semi-rings 11 away from the hinge point. The positioning lug 31 has an opening through which the cylindrical portion of the first bolt 33 passes, and the threaded lug 32 has a threaded hole for threaded connection of the cylindrical portion of the first bolt 33. The first bolt 33 can pass through the positioning lug 31 and be threadedly connected to the threaded lug 32, thereby driving the threaded lug 32 closer to the positioning lug 31 to secure the two rigid semi-rings 11 to the pipe. The positioning lug 31 and the threaded lug 32 can be made of the same material, such as stainless steel or carbon steel, to ensure their strength. They can be fixed to the rigid semi-rings 11 by welding or integral molding to ensure structural strength.

[0035] Reference Figure 1 and Figure 2 In this embodiment of the application, the flexible clamp 2 includes two flexible semi-rings 21. The two flexible semi-rings 21 are preferably formed by bending a metal strip, such as stainless steel. In other embodiments, the flexible semi-rings 21 can also be made of high-performance elastic materials such as thermoplastic elastomer (TPE) or polyurethane (PU). Each of the two flexible semi-rings 21 is provided with a connecting ring 211 at one end near the hinge point of the two rigid semi-rings 11. The connecting ring 211 is fixed to the end of the flexible semi-ring 21. It can be formed by rolling the end of the flexible semi-ring 21 outward and then fixing it, or it can be made by directly welding a metal ring. The inner side wall of the end of the rigid semi-ring 11 near the hinge point is provided with a slot 111 for the connecting ring 211 to be inserted. The slot 111 extends axially along the rigid semi-ring 11 to the surface. A connecting groove is provided between the slot 111 and the inner side wall of the rigid plate for the flexible semi-ring 21 to pass through. Thus, by inserting the connecting ring 211 into the slot 111, the flexible semi-ring 21 can be initially positioned in the rigid semi-ring 11.

[0036] Reference Figure 2 In this embodiment, the fixing member 5 is a third bolt 51. The rigid half-ring 11 has a threaded groove on the bottom wall of the slot 111 for the third bolt 51 to be threadedly connected. The third bolt 51 can pass through the connecting ring 211 and be threadedly connected to the threaded hole, thereby fixing the connecting ring 211 in the threaded groove. Preferably, the third bolt 51 can be a countersunk bolt to facilitate the use of the clamp. With this structure, the flexible half-ring 21 can be quickly fixed and installed in the rigid half-ring 11, improving assembly efficiency. At the same time, the separate design of the flexible half-ring 21 and the rigid half-ring 11 makes it easy to replace the flexible half-ring 21 to realize the multiple uses of the clamp. At the same time, after removing the flexible half-ring 21, the rigid clamp 1 can also be used alone.

[0037] Reference Figure 1 and Figure 2In this embodiment, the second locking member 4 includes a positioning post 41, a threaded post 42, and a second bolt 43. The positioning post 41 and the threaded post 42 are respectively disposed on the outer side wall of the end of the two flexible semi-rings 21 away from the connecting insert ring 211. Similarly, the positioning post 41 has an opening for the column part of the second bolt 43 to pass through, and the threaded post 42 has a threaded hole for the column part of the second bolt 43 to be threadedly connected. The second bolt 43 can pass through the positioning post 41 and be threadedly connected to the threaded post 42. Thus, by rotating the second bolt 43, the threaded post 42 can be moved closer to the positioning post 41, thereby making the two flexible semi-rings 21 reinforced on the pipe.

[0038] When fixing the positioning post 41 and the threaded post 42, a metal ring can be first fixed to the outer wall of the flexible semi-ring 21 by welding or bolting. This metal ring forms a mounting ring, and the positioning post 41 and the threaded post 42 are inserted into the mounting ring. An opening is made on the side wall of the mounting ring for the second bolt 43 to pass through. The positioning post 41 and the threaded post 42 can be slidably installed in the mounting ring, or they can be fixed in the mounting ring by welding or bolting. From the above structure, the connection strength between the second bolt 43 and the flexible semi-ring 21 can be increased.

[0039] In this embodiment, one of the flexible semi-rings 21 is further connected to a tab 22 at the end away from the connecting ring 211. The tab 22 is preferably integrally formed with the flexible semi-ring 21, and can be inserted into the inside of the other flexible semi-ring 21, thereby improving the connection strength at the junction of the two flexible semi-rings 21. Further optionally, the inner surfaces of the flexible semi-ring 21 and the tab 22 can be provided with anti-slip textures to increase friction with the pipe.

[0040] Reference Figure 1 and Figure 2 The rigid semi-ring 11 has a clearance hole 112 at its end furthest from the hinge point. The clearance hole 112 extends circumferentially through to the side wall of the positioning lug 31 or the threaded lug 32. The positioning post 41 and the threaded post 42 are both located within the clearance hole 112. That is, the end of the rigid semi-ring 11 is divided into a U-shape by the clearance hole 112, and the positioning post 41 and the threaded post 42 are located in the middle of it. In this way, the first locking member 3 and the second locking member 4 will not interfere with each other during use. Since the end of the rigid semi-ring 11 is divided into two, two first screws are provided accordingly. It should also be noted that, for ease of assembly, the length of the connecting ring 211 needs to be less than the width of the rigid semi-ring 11.

[0041] The implementation principle of a small-space bolt-connected high-strength clamp according to an embodiment of this application is as follows: Before use, the flexible semi-ring 21 is first assembled and fixed to the inner side of the rigid semi-ring 11 using the second bolt 43. Then, the two rigid semi-rings 11 are fastened to the pipe to be fixed. Next, the flexible clamp can be fixed first, and then the rigid clamp can be fixed. That is, the two flexible semi-rings 21 are first locked to the pipe using the second bolt 43, and then the two rigid plates are locked to the outer side of the flexible semi-rings 21 using the first bolt 33. Through the combined structure of the rigid clamp 1 and the flexible clamp 2, the rigid clamp 1 provides the main support force and stability, while the flexible clamp 2 adapts to the deformation of the pipe through its elastic characteristics, thereby improving the overall sealing performance and reliability.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A small space bolted heavy duty clamp characterized by: It includes a rigid clamp (1), a flexible clamp (2), a first locking member (3), a second locking member (4), and a fixing member (5). The first locking member (3) is used to lock the rigid clamp (1) onto the pipe, and the second locking member (4) is used to lock the flexible clamp (2) onto the pipe. The first locking member (3) and the second locking member (4) are arranged alternately. The fixing member (5) is used to fix the flexible clamp (2) to the inside of the rigid clamp (1).

2. A small space bolted type high force clamp according to claim 1, characterized in that: The rigid clamp (1) includes two rigid semi-rings (11), one end of the two rigid semi-rings (11) is hinged to each other to form a hinge point, and the other end of the two rigid semi-rings (11) is locked to each other by the first locking member (3).

3. A small space bolted type high force clamp according to claim 2, characterized in that: The first locking member (3) includes a positioning lug (31), a threaded lug (32) and a first bolt (33). The positioning lug (31) and the threaded lug (32) are respectively disposed at the ends of the two rigid semi-rings (11) away from the hinge point. The first bolt (33) can pass through the positioning lug (31) and be threadedly connected to the threaded lug (32).

4. A small space bolted type high force clamp according to claim 3, characterized in that: The flexible clamp (2) includes two flexible semi-rings (21). Each of the two flexible semi-rings (21) is provided with a connecting ring (211) at one end near the hinge point of the two rigid semi-rings (11). The inner wall of the rigid semi-ring (11) is provided with a slot (111) for the connecting ring (211) to be inserted. The slot (111) extends axially along the rigid semi-ring (11) to the surface. A connecting groove is provided between the slot (111) and the inner wall of the rigid semi-ring (11) for the flexible semi-ring (21) to pass through.

5. A small space bolted type high force clamp according to claim 4, characterized in that: The fixing member (5) is the third bolt (51). The rigid semi-ring (11) has a threaded groove on the bottom wall of the slot (111) for the third bolt (51) to be threaded. The third bolt (51) can pass through the connecting ring (211) and be threadedly connected to the threaded groove.

6. A small space bolted type high force clamp according to claim 5, characterized in that: The second locking member (4) includes a positioning post (41), a threaded post (42), and a second bolt (43). The positioning post (41) and the threaded post (42) are respectively disposed on the outer side wall of the two flexible semi-rings (21) away from the connecting ring (211). The second bolt (43) can pass through the positioning post (41) and be threadedly connected to the threaded post (42).

7. A small space bolted type high force clamp according to claim 6, characterized in that: One of the flexible semi-rings (21) is provided with a tab (22) at the end away from the connecting ring (211), the tab (22) being able to be inserted into the inside of the other flexible semi-ring (21).

8. A small space bolted type high force clamp according to claim 7, characterized in that: The inner wall of the flexible semi-ring (21) is provided with anti-slip texture.

9. A small space bolted type high force clamp according to claim 8, characterized in that: The rigid semi-ring (11) has a relief hole (112) at one end away from the hinge point. The relief hole (112) extends circumferentially through to the side wall of the positioning lug (31) or the threaded lug (32). The positioning post (41) and the threaded post (42) are both located in the relief hole (112).

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