Special clamp for connecting abutted seams of CMC module units

Abstract

The utility model discloses a special fixture for connecting the abutted seam of CMC module units, which comprises an operating rod and a sleeve, the operating rod comprises a hand-held part, a connecting rod and an end occlusion claw, the end occlusion claw comprises two elastic clamping claws, the hand-held part is pushed and pulled, and the end occlusion claw is embedded into or separated from the sleeve to realize the opening and closing action. And the reinforcing steel bar is clamped or loosened. When the reinforcing steel bars at the abutted seams of the CMC module units need to be installed, the special clamp extends into the abutted seams to clamp and move the reinforcing steel bars, and the installation work of the reinforcing steel bars is assisted to be completed. According to the special clamp, a constructor can quickly complete installation of the reinforcing steel bars in a limited space, the construction efficiency is improved, the special clamp can accurately place the connecting reinforcing steel bars in place, and the construction efficiency and the finished product quality are remarkably improved. In addition, the special clamp is simple and convenient in structure, has excellent portability, and meets the actual requirements of simple operation and easy carrying of tools on a construction site.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a special clamp for connecting CMC module unit splices. Background Technology

[0002] With the increasing demands for construction efficiency and quality in the modern construction industry, modular construction has gradually become a popular building form. In the design of CMC (Composite Module Construction), the connection between modules is crucial, especially in the process of rebar installation and welding. However, due to the limited space at the connection points and the difficulty in installing rebar, traditional manual methods often fail to ensure accurate placement of the rebar, leading to low construction efficiency and affecting the quality of the finished product. Currently, the lack of a simple and effective tool to help workers quickly and accurately place the rebar has become a key factor restricting construction progress and quality.

[0003] While some auxiliary tools for rebar installation exist on the market, most designs fail to adequately address the problem of precise positioning in confined spaces or lack sufficient portability and practicality. Traditional rebar positioning devices are often complex to operate, inconvenient to carry, and require a high level of technical skill from construction workers, thus failing to meet the demands for rapid and efficient construction. Furthermore, while some rebar clamps offer basic auxiliary functions, they still suffer from unstable installation and insecure clamping, leading to repeated adjustments and wasted time during construction. Utility Model Content

[0004] The purpose of this utility model is to provide a special clamp for connecting CMC module unit joints, which can solve the problems of insufficient accuracy in rebar positioning, cumbersome operation and poor portability of auxiliary tools in the prior art.

[0005] This utility model is implemented as follows: a special clamp for connecting CMC module units at the seam includes an operating rod and a sleeve. The operating rod includes a hand-held part, a connecting rod, and an end-engaging claw. One end of the connecting rod is fixedly connected to the hand-held part, and the other end is fixedly connected to the end-engaging claw. The end-engaging claw includes two elastic grippers. By pushing and pulling the hand-held part, the end-engaging claw can engage or disengage from the sleeve to achieve an opening and closing action.

[0006] Furthermore, the two elastic grippers are arranged in a V-shape to form an open end and a closed end. The open end has an arc-shaped concave engagement surface, and the closed end is fixedly connected to the connecting end.

[0007] Furthermore, the mating surface is covered with a rubber anti-slip pad.

[0008] Furthermore, a return spring is sandwiched between the two elastic grippers.

[0009] Furthermore, a limiting flange is provided at the junction of the handheld part and the connecting rod, and the diameter of the limiting flange is larger than the inner diameter of the sleeve.

[0010] Furthermore, an anti-slip structure is provided on the outer periphery of the handheld part.

[0011] Furthermore, an anti-slip structure is provided on the outer periphery of the sleeve.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] This utility model provides a special clamp for connecting CMC module unit joints, including an operating rod and a sleeve. The operating rod includes a handle, a connecting rod, and end clamping claws. One end of the connecting rod is fixedly connected to the handle, and the other end is fixedly connected to the end clamping claws. The end clamping claws include two elastic grippers. By pushing and pulling the handle, the end clamping claws engage or disengage from the sleeve to achieve an opening and closing action, thereby clamping or releasing the reinforcing bars. When it is necessary to install reinforcing bars at the joint of a CMC module unit, the special clamp is inserted into the joint to the position of the reinforcing bar to be installed. The handle is pushed until the end clamping claws open. After alignment with the reinforcing bar, the handle is pulled back to clamp the reinforcing bar with the end clamping claws, thus completing the installation work. It can be seen that the special clamp of this application can extend into the joint of a CMC module unit, clamp and move the reinforcing bars, enabling construction personnel to quickly complete the installation of reinforcing bars in a limited space, improving construction efficiency. This special clamp can accurately position the connecting reinforcing bars, significantly improving construction efficiency and finished product quality. In addition, this special clamp has a simple structure and excellent portability, meeting the actual needs of construction sites for simple operation and easy carrying of tools. Attached Figure Description

[0014] Figure 1 This is an exploded structural diagram of a special fixture provided in an embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the structure of a special fixture provided in an embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the structure of a special clamp provided in this application when the operating rod is pulled back to the end biting claw engaging the sleeve;

[0017] Figure 4 This is a schematic diagram of a special clamp for adjusting the position of a reinforcing bar by rotating the operating rod, as provided in an embodiment of this application.

[0018] Marked in the image:

[0019] 1. Operating lever; 11. Hand grip; 12. Connecting rod; 13. End engagement claw; 14. Rubber anti-slip pad; 15. Limiting flange; 2. Sleeve. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] Please see Figure 1 This embodiment illustrates a special clamp for connecting CMC module units at seams, including an operating lever 1 and a sleeve 2. The operating lever 1 includes a handle 11, a connecting rod 12, and end gripping claws 13. One end of the connecting rod 12 is fixedly connected to the handle 11, and the other end is fixedly connected to the end gripping claws 13. The end gripping claws 13 include two elastic grippers. Please refer to [link to relevant documentation]. Figure 2 and Figure 3 When the sleeve 2 is gripped and the operating lever 1 is pushed forward, the end gripping claw 13 slides out of the sleeve 2, and the two elastic jaws open. When the operating lever 1 is pulled back, the end gripping claw 13 slides into the sleeve 2, and the two elastic jaws close, thus clamping the reinforcing bar. It can be seen that by gripping the sleeve 2 and pushing or pulling the operating lever 1, the operation of clamping or releasing the reinforcing bar can be achieved.

[0023] Specifically, the two elastic grippers are arranged in a V-shape to form an open end and a closed end. The open end has an arc-shaped concave interlocking surface, and the closed end is fixedly connected to the connecting end. The shape of the two interlocking surfaces after closing matches the cross-sectional shape of the reinforcing bar.

[0024] Furthermore, the interlocking surface is covered with a rubber anti-slip pad 14, which can be squeezed and deformed when in contact with the reinforcing bar, thereby increasing the contact area between the interlocking surface and the reinforcing bar, increasing the friction, and achieving an anti-slip effect.

[0025] Furthermore, a return spring 3 is sandwiched between the two elastic grippers. Although the two elastic grippers in this embodiment also have a certain return capability, considering that the elastic performance of the elastic grippers may decrease after long-term use, a return spring 3 is added in this embodiment. When the elastic grippers slide out of the sleeve, the two elastic grippers can quickly open under the elastic force of the return spring.

[0026] Furthermore, in this embodiment, a limiting flange 15 is provided at the junction of the handheld part 11 and the connecting rod 12. The diameter of the limiting flange 15 is larger than the inner diameter of the sleeve 2, so that the limiting flange 15 will not enter the sleeve 2 during the pushing and pulling of the operating rod 1. The limiting flange 15 can prevent the operator's hand from colliding with the port of the sleeve 2, thus protecting the operator. The length between the limiting flange 15 and the end biting claw 13 can be designed so that when the limiting flange 15 touches the port of the sleeve 2, the end biting claw 13 is just in a fully open state, so that the limiting flange 15 has a positioning function and also helps the operator to understand the current state of the end biting claw 13.

[0027] Furthermore, both the handle 11 and the sleeve 2 are provided with anti-slip structures on their outer periphery. These anti-slip structures can be flexible material layers or textured structures, thereby increasing the friction between the palm and the handle 11 and the sleeve 2, and playing an anti-slip role.

[0028] Further, please refer to Figure 4 In this embodiment, the inner hole of the sleeve 2 has a circular cross-section, and the connecting rod 12 also has a circular cross-section. Through the size design, a certain gap can be reserved between the inner wall of the sleeve 2 and the outer periphery of the connecting rod 12. Thus, by rotating the operating rod 1, the end biting claw 13 can rotate relative to the sleeve 2, thereby realizing the function of adjusting the position of the reinforcing bar.

[0029] In summary, the specialized clamp of this embodiment can extend into the joints of CMC module units to clamp and move the reinforcing bars, enabling construction workers to quickly complete the installation of reinforcing bars within limited space, thus improving construction efficiency. This specialized clamp can accurately position the connecting reinforcing bars, significantly improving construction efficiency and finished product quality. Furthermore, this specialized clamp has a simple structure and excellent portability, meeting the practical needs of construction sites for tools that are easy to operate and carry.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special clamp for connecting CMC module units at joints, characterized in that, The device includes an operating lever and a sleeve. The operating lever includes a hand grip, a connecting rod, and an end gripping claw. One end of the connecting rod is fixedly connected to the hand grip and the other end is fixedly connected to the end gripping claw. The end gripping claw includes two elastic grippers. By pushing or pulling the hand grip, the end gripping claw engages or disengages from the sleeve to achieve the opening and closing action.

2. The special clamp according to claim 1, characterized in that, The two elastic grippers are arranged in a V-shape to form an open end and a closed end. The open end has an arc-shaped concave engagement surface, and the closed end is fixedly connected to the connecting rod.

3. The special fixture according to claim 2, characterized in that, The interlocking surfaces are covered with rubber anti-slip pads.

4. The special clamp according to any one of claims 1 to 3, characterized in that, A return spring is sandwiched between the two elastic grippers.

5. The special clamp according to any one of claims 1 to 3, characterized in that, A limiting flange is provided at the junction of the handheld part and the connecting rod, and the diameter of the limiting flange is larger than the inner diameter of the sleeve.

6. The special fixture according to claim 1, characterized in that, The outer periphery of the handheld part is provided with an anti-slip structure.

7. The special clamp according to any one of claims 1 to 3, characterized in that, The sleeve has an anti-slip structure on its outer periphery.

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