Quick tightening equipment for clamp
By designing a quick clamp tightening device, which utilizes a combination of limit posts and magnetic blocks, the problem of precise torque control in existing metal clamp locking devices is solved, enabling quick and reliable clamp connection and improving construction efficiency and equipment stability.
Patent Information
- Application Number
- CN202520778695.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-23
AI Technical Summary
The existing locking devices for metal clamps rely on manual operation, making it difficult to accurately achieve the standard torque value. This results in unstable connection effects of the metal clamps and affects construction efficiency.
Design a clamp fastening device that uses a clamp sleeve and connector, and utilizes a combination structure of limit post, magnetic block and ratchet wrench to achieve automatic clamp locking and ensure that the torque value meets the standard.
It achieves quick and reliable connection of clamps, is simple and labor-saving to operate, saves installation time, and improves construction efficiency and equipment stability.
Smart Images

Figure CN223961256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamp technology, and more specifically, it relates to a clamp quick tightening device. Background Technology
[0002] In today's rapidly developing polyethylene pipeline industry, the main connection methods rely on butt fusion and electrofusion. While these two technologies are mature and reliable, due to the characteristics of polyethylene material, a long cooling time is required after welding, and any external interference must be avoided during the cooling phase; otherwise, problems such as joint deformation and seal failure can easily occur. This technological limitation seriously affects construction efficiency, especially in projects with tight schedules or requiring rapid repairs, where the drawbacks of traditional welding methods become even more apparent. To overcome the efficiency bottleneck of traditional welding, an innovative connection method has emerged: metal chuck embedding + sealing ring clamp connection. This technology achieves a fast and reliable pipeline connection by pre-embedding a high-strength metal chuck into the end of the pipe fitting, using an elastic sealing ring, and then mechanically locking it with a clamp. However, the connection effect of the metal clamp is highly dependent on the torque control of the locking device. If the existing metal clamp locking device relies solely on manual operation, it is difficult to accurately achieve the standard torque value.
[0003] Therefore, a new solution is needed to address this problem. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a clamp fastening device.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a clamp fastening device, including a clamp head and a connector, one end of the connector having a threaded hole for connecting with a screw, the clamp head including a first connecting block and a second connecting block, the first connecting block having a groove for accommodating the other end of the connector and a recess for accommodating the second connecting block, the second connecting block being fixed to the first connecting block by a limiting member, the second connecting block having a slot for accommodating a ratchet wrench, and when the second connecting block rotates, the first connecting block and the connector rotate synchronously.
[0006] The present invention is further configured such that: the limiting member is a limiting post, and the limiting posts are provided in a plurality of arrays on the outer wall of the connecting block two, and the inner wall of the groove is provided with a limiting groove for accommodating the insertion of the limiting post.
[0007] The present invention is further configured such that: the limiting groove connects the bottom of the groove and the top surface of the connecting block one, and the top surface of the connecting block one is provided with a guide slope that connects to the limiting groove.
[0008] The present invention is further configured such that: the connecting block 2 is provided with a through groove for communicating with the slot, the through groove has a circular cross-section, the slot has a rectangular cross-section, the diameter of the through groove is smaller than the width of the slot, and a boss is formed between the through groove and the slot.
[0009] The present invention is further configured such that the cross-section of the groove is rectangular, and the width of the groove is greater than the diameter of the through groove.
[0010] The present invention is further configured such that: the bottom surface of the second connecting block and the bottom of the groove are both provided with magnetic blocks, and the second connecting block and the first connecting block are fixed by mutual attraction of the magnetic blocks.
[0011] The present invention is further configured such that: both the connecting block 2 and the bottom of the groove are provided with positioning grooves for accommodating the embedded magnetic block, and the magnetic block is interference-fitted in the positioning groove.
[0012] The present invention is further configured such that both connecting block one and connecting block two are made of stainless steel.
[0013] In summary, this utility model has the following beneficial effects: This equipment is simple to operate. Simply fix the connector to the screw of the clamp, and then fix the clamp sleeve to the connector. The clamp can be locked by turning the ratchet wrench. The operation is simple and convenient. At the same time, the locking process is quick and direct, and the whole process can be completed in just a few minutes, saving installation time. In addition, the equipment uses the lever principle, which makes the operation easy and labor-saving for the operator. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present invention in use;
[0015] Figure 2 This is a schematic diagram of the structure of this utility model;
[0016] Figure 3 A cross-sectional view of this utility model Figure 1 ;
[0017] Figure 4 A cross-sectional view of this utility model Figure 2 .
[0018] In the diagram: 1. Clamp head; 2. Connector; 21. Threaded hole; 11. Connecting block one; 12. Connecting block two; 111. Groove; 112. Recess; 121. Limiting post; 122. Slot; 3. Ratchet wrench; 113. Limiting groove; 114. Guide slope; 123. Through groove; 124. Magnetic block; 125. Positioning groove; 4. Metal clamp. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0020] To better describe and illustrate the embodiments of this application, reference may be made to one or more accompanying drawings, but the additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the utility model creation, the embodiments or preferred embodiments of this application, or the preferred methods described herein.
[0021] In the description of this utility model, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device referred to must have a specific orientation or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] A quick-tightening device for clamps, such as Figure 1 As shown, it includes a clamp head 1 and a connector 2. One end of the connector 2 is provided with a threaded hole 21 for connecting with the screw on the metal clamp 4. As the connector 2 is turned, the metal clamp 4 will also clamp the pipe, thereby completing the locking process.
[0025] Specifically, the clamp head 1 consists of connecting block 11 and connecting block 2 12. Connecting block 11 has a groove 111 and a recess 112. The groove 111 has a rectangular cross-section and is used to accommodate the end of the connector 2 away from the threaded hole 21, ensuring that the connector 2 and connecting block 11 fit tightly. The recess 112 is used to accommodate the connector 2 12. A limiting groove 113 is provided on its inner wall for cooperating with the limiting post 121 on the connecting block 2 12. The top surface of connecting block 11 has a guide slope 114 to guide the limiting post 121 to smoothly enter the limiting groove 113, so that connecting block 11 and connecting block 2 12 can be quickly and accurately assembled together. Furthermore, both connecting block 11 and connecting block 2 12 are made of stainless steel. Stainless steel has the characteristics of high strength, corrosion resistance and wear resistance, which can effectively extend the service life of the equipment and ensure the normal use of the equipment in harsh environments.
[0026] Six vertical limiting posts 121 are arrayed on the outer wall of connecting block 2 12. These limiting posts 121 can be inserted into the limiting grooves 113 on the inner wall of the groove 112, thereby achieving a fixed connection between connecting block 2 12 and connecting block 1 11. Connecting block 2 12 is also provided with a slot 122 for accommodating a ratchet wrench 3 or other hand tools. Furthermore, the slot 122 has a rectangular cross-section. Connecting block 2 12 is also provided with a through groove 123, which has a circular cross-section and a diameter smaller than 1 / 3. The width of slot 122 and the boss formed between through slot 123 and slot 122. This structural design can adapt to the insertion of different tools, improve the versatility and flexibility of the equipment. The boss design allows the ratchet wrench 3 to be pressed against the ratchet wrench 3 when it is inserted into slot 122, thereby increasing the contact area between the two and making the rotation process more stable. When the tool is inserted into slot 122 and drives connecting block 2 12 to rotate, connecting block 1 11 and connecting piece 2 can rotate synchronously, thereby realizing the quick tightening of the clamp.
[0027] To further enhance the connection between connecting block 11 and connecting block 212, magnetic blocks 124 are provided on the bottom surface of connecting block 212 and the bottom of groove 112. The magnetic blocks 124 are installed in the positioning groove 125 of connecting block 212 and the bottom of groove 112 by interference fit. When connecting block 212 is embedded in groove 112, the magnetic blocks 124 attract each other, further fixing connecting block 11 and connecting block 212, preventing loosening during tightening, and improving the stability and reliability of the equipment.
[0028] In actual use, firstly, connect one end of connector 2 with the threaded hole 21 to the screw of metal clamp 4. Then, insert the other end of connector 2 into the groove 111 of connector block 11. Next, insert connector block 2 12 into the groove 112 of connector block 11. Fixing is achieved through the cooperation of limiting post 121 and limiting groove 113. At the same time, the adsorption effect of magnetic block 124 further enhances the firmness of the connection. Finally, insert ratchet wrench 3 or other manual tool into the slot 122 of connector block 2 12. By rotating the tool, connector block 2 12 is rotated, thereby achieving synchronous rotation of connector block 11 and connector 2, completing the clamp tightening operation. The shape of connector 2 is not required, as long as it can lock the clamp while rotating relative to the screw. Connector 2 can be locked by pressing the clamp against the end near the threaded hole 21 or by pressing the clamp against the end near the groove 111. Therefore, connector 2 in this application can be adapted to clamps of different shapes, improving the applicability of the equipment. Tightening the clamp with ratchet wrench 3 makes the torque value of metal clamp 4 reach the standard, thereby completing the locking. At the same time, the operation process is simple and convenient, and the locking process is fast and direct, which can be completed in just a few minutes, saving installation time. Moreover, the equipment uses the lever principle, making it easy and effortless for operators to operate.
[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A clamp quick tightening device, characterized in that: The device includes a clamp head (1) and a connector (2). One end of the connector (2) is provided with a threaded hole (21) for connecting with a screw. The clamp head (1) includes a first connector block (11) and a second connector block (12). The first connector block (11) is provided with a groove (111) for accommodating the other end of the connector (2) and a recess (112) for accommodating the second connector block (12). The second connector block (12) is fixed to the first connector block (11) by a limiting member. The second connector block (12) is provided with a slot (122) for accommodating the insertion of a ratchet wrench (3). When the second connector block (12) rotates, the first connector block (11) and the connector (2) rotate synchronously.
2. The clamp quick tightening device according to claim 1, characterized in that: The limiting component is a limiting post (121). The limiting post (121) is provided in a plurality of arrays on the outer wall of the connecting block two (12). The inner wall of the groove (112) is provided with a limiting groove (113) for accommodating the insertion of the limiting post (121).
3. The clamp quick tightening device according to claim 2, characterized in that: The limiting groove (113) connects the bottom of the groove (112) and the top surface of the connecting block (11), and the top surface of the connecting block (11) is provided with a guide slope (114) that connects to the limiting groove (113).
4. The clamp quick tightening device according to claim 1, characterized in that: The connecting block 2 (12) is provided with a through groove (123) for connecting slot (122). The through groove (123) has a circular cross-section, and the slot (122) has a rectangular cross-section. The diameter of the through groove (123) is smaller than the width of the slot (122). A boss is formed between the through groove (123) and the slot (122).
5. The clamp quick tightening device according to claim 4, characterized in that: The groove (111) has a rectangular cross-section, and the width of the groove (111) is greater than the diameter of the through groove (123).
6. The clamp quick tightening device according to claim 1, characterized in that: The bottom surface of the second connecting block (12) and the bottom of the groove (112) are both provided with magnetic blocks (124). The second connecting block (12) and the first connecting block (11) are fixed by mutual attraction through the magnetic blocks (124).
7. A clamp quick tightening device according to claim 6, characterized in that: The bottom of the connecting block 2 (12) and the groove (112) are both provided with positioning grooves (125) for accommodating the embedded magnetic block (124), and the magnetic block (124) is interference-fitted in the positioning groove (125).
8. The clamp quick tightening device according to claim 1, characterized in that: Both connecting block one (11) and connecting block two (12) are made of stainless steel.