Air pipe clamp
By designing a combination of a U-shaped pipe clamp body, a screw, and a movable rod, tool-free duct clamping is achieved, solving the problem of inconvenient operation in existing technologies and improving the convenience and flexibility of single-person operation.
Patent Information
- Application Number
- CN202520071580.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing duct clamps require two people to work together and use tools when fixing heavy ducts, making them inconvenient to operate.
Design a duct clamp comprising a U-shaped clamp body, a screw, a movable rod, and a fixed arm. The movable rod drives the pressure plate downward to achieve duct clamping and fixing, and the operation can be completed without tools.
One person can easily tighten and fix the pipes, making the operation simple and especially flexible when the pipes are close to the wall.
Smart Images

Figure CN223622440U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of duct clamp technology, specifically a duct clamp. Background Technology
[0002] Duct clamps are widely used fixing and supporting devices in air conditioning, ventilation, and exhaust systems, designed to ensure the stability and safety of ducts during installation and use. With the increasing demand for air conditioning and ventilation systems in the construction and industrial sectors, the design and materials of duct clamps are constantly being improved to meet increasingly stringent standards and requirements. Modern duct clamps are typically made of high-strength steel, stainless steel, or plastics, offering excellent corrosion resistance and pressure resistance. In their structural design, duct clamps must not only securely fix the duct but also consider the vibration and displacement caused by changes in airflow during operation. Therefore, many duct clamps are equipped with anti-vibration and shock absorption functions to improve the overall operating efficiency and service life of the system.
[0003] CN202420818132.4 discloses an anti-slip U-shaped pipe clamp, including a U-shaped frame. The inner wall of the U-shaped frame is provided with an anti-slip pad. The top of the U-shaped frame is fixedly connected to symmetrically arranged vertical rods. A fixing plate is fixedly connected between the top ends of the vertical rods. A threaded hole is provided at the center of the fixing plate. A threaded rod is threadedly connected to the threaded hole. A lifting plate is rotatably connected to the bottom of the threaded rod through a bearing. A collar is fixedly connected to the four corners of the lifting plate and is sleeved on the vertical rod. A positioning hole is provided on the lifting plate. A positioning rod is provided in the positioning hole. A pressure block is fixedly connected to the bottom of the positioning rod. An arc-shaped groove is provided at the bottom of the pressure block. A rubber pad is provided on the inner wall of the arc-shaped groove. A compression spring is sleeved on the positioning rod and is located between the lifting plate and the pressure block.
[0004] The above-mentioned technical solution mainly uses structures such as positioning holes, positioning rods, clamping springs, pressure blocks, and blocking blocks. When the pressure block presses on the pipe, the clamping spring can buffer the pressure and prevent the pipe from being subjected to excessive pressure. However, when fixing the pipe, one person needs to hold the bottom of the pipe clamp to prevent it from shifting, while another person fixes the pipe by turning the screw. This is very tiring when dealing with some heavy pipes. Moreover, when turning the screw, a wrench is needed to press the pipe firmly and fix it, which is very inconvenient. Utility Model Content
[0005] The purpose of this utility model is to solve the above problems and provide a duct clamp. This duct clamp, by setting a movable rod and a fixed arm, can clamp and fix the pipe without the use of tools, which facilitates the operation of workers and is highly flexible.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A duct clamp includes a U-shaped clamp body and a screw. The U-shaped clamp body is provided with a vertically movable pressure plate. The screw is threadedly connected to the U-shaped clamp body. One end of the screw is rotatably connected to the pressure plate, and the other end is provided with a fixed block. The clamp also includes a movable rod and a fixed arm. The movable rod is horizontally inserted through the fixed block and is movably connected to the fixed block. The pressure plate can be driven to move downward by rotating the movable rod. The fixed arms are symmetrically arranged on the U-shaped clamp body.
[0008] In the aforementioned duct clamp, both ends of the movable rod are provided with limiting blocks to prevent the movable rod from detaching from the fixed block.
[0009] In one of the aforementioned duct clamps, a pressure block is provided at the bottom of the pressure plate.
[0010] In one of the aforementioned duct clamps, the bottom of the pressure block is provided with a fixing groove with an inverted U-shaped structure.
[0011] In the aforementioned duct clamp, there are two pressure blocks, which are arranged horizontally at intervals and located on both sides of the U-shaped clamp body.
[0012] In the aforementioned duct clamp, the fixing arm is a circular tube structure, and the U-shaped clamp body and the fixing arm are integrally formed.
[0013] The aforementioned duct clamp also includes a reinforcing block, which is disposed between the fixing arm and the U-shaped clamp body.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this utility model, when fixing the pipe, one worker can hold the fixing arm to stabilize the U-shaped pipe clamp body, while another worker holds the movable rod to rotate and drive the pressure plate down to press the pipe. This makes the operation more convenient for workers and allows the pipe to be fixed without the need for special tools.
[0016] Moreover, when the pipes are installed close to the wall, workers can pull the movable rod away from the wall and then rotate it, which is very flexible. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a duct clamp according to Embodiment 1;
[0018] Figure 2 This is a schematic diagram of the pressure plate structure of a duct clamp according to Embodiment 1;
[0019] Figure 3 This is a side view of the pressure block of a duct clamp according to Embodiment 1;
[0020] Figure 4 This is a schematic diagram of the U-shaped pipe clamp body of a duct clamp according to Embodiment 1;
[0021] The figure labels for each figure are as follows:
[0022] 1. U-shaped pipe clamp body; 2. Screw; 3. Pressure plate; 31. Pressure block; 311. Fixing groove; 4. Fixing block; 5. Movable rod; 51. Limiting block; 6. Fixing arm; 7. Reinforcing block. Detailed Implementation
[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1
[0025] refer to Figures 1-4 A duct clamp includes a U-shaped clamp body 1 and a screw 2. The U-shaped clamp body 1 is provided with a vertically movable pressure plate 3. The screw 2 is threadedly connected to the U-shaped clamp body 1. One end of the screw 2 is threadedly connected to the pressure plate 3, and the other end is provided with a fixing block 4. It also includes a movable rod 5 and a fixing arm 6. The movable rod 5 is horizontally inserted through the fixing block 4 and is movably connected to the fixing block 4. The pressure plate 3 can be driven to move downward by rotating the movable rod 5. The fixing arms 6 are symmetrically arranged on the U-shaped clamp body 1.
[0026] In this design, after the pipe is passed through the U-shaped pipe clamp body 1, one person holds the fixed arm 6 with both hands, while another person rotates the movable rod 5 on the fixed block 4. This drives the pressure plate 3 downward through the screw 2, thereby pressing and fixing the pipe. When the pipe needs to be installed close to the wall, the worker can pull the movable rod 5 away from the wall and then rotate the movable rod 5. In this way, the pipe can be pressed and fixed without the use of tools, which is convenient for the worker's operation and highly flexible.
[0027] Preferably, both ends of the movable rod 5 are provided with limiting blocks 51 to prevent the movable rod 5 from detaching from the fixed block 4. The main function of the limiting blocks 5 is to prevent the movable rod 5 from detaching from the fixed block 4.
[0028] More preferably, a pressure block 31 is provided at the bottom of the pressure plate 3;
[0029] Preferably, the bottom of the pressure block 31 is provided with a U-shaped fixing groove 311.
[0030] Specifically, when the movable rod 5 is rotated, the screw 2 drives the pressure plate 3 to move downward, which in turn drives the pressure block 31 to move downward to press and fix the pipe. The U-shaped fixing groove 311 can better fit with the outer wall of the pipe, increasing the contact area to improve the pressing and fixing effect.
[0031] In this embodiment, there are two pressure blocks 31, which are arranged at a distance along the horizontal direction and located on both sides of the U-shaped pipe clamp body 1.
[0032] Furthermore, in order to better improve the clamping and fixing effect, the pressure blocks 31 are arranged at intervals in the horizontal direction and located on both sides of the U-shaped clamp body to increase the contact area with the pipe.
[0033] In this embodiment, the fixing arm 6 is a circular tube structure, and the U-shaped clamp body 1 and the fixing arm 6 are integrally formed. The integral forming of the fixing arm 6 and the U-shaped clamp body can improve structural strength.
[0034] More preferably, it also includes a reinforcing block 7, which is disposed between the fixing arm 6 and the U-shaped pipe clamp body 1. The reinforcing block 7 is provided to support the fixing arm 6 and prevent it from deforming.
[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements or modifications can be made without departing from the principle of the present utility model, and these improvements or modifications should also be considered within the protection scope of the present utility model.
Claims
1. A duct clamp, comprising a U-shaped clamp body and a screw, wherein the U-shaped clamp body is provided with a vertically movable pressure plate, the screw is threadedly connected to the U-shaped clamp body, one end of the screw is rotatably connected to the pressure plate, and the other end is provided with a fixing block, characterized in that, It also includes a movable rod and a fixed arm. The movable rod is horizontally inserted through the fixed block and is movably connected to the fixed block. The pressure plate can be driven to move downward by rotating the movable rod. The fixed arm is symmetrically arranged on the U-shaped pipe clamp body.
2. The duct clamp according to claim 1, characterized in that, Both ends of the movable rod are provided with limiting blocks to prevent the movable rod from detaching from the fixed block.
3. A duct clamp according to claim 1, characterized in that, The bottom of the pressure plate is provided with a pressure block.
4. A duct clamp according to claim 3, characterized in that, The bottom of the pressure block is provided with an inverted U-shaped fixing groove.
5. A duct clamp according to claim 4, characterized in that, The pressure block consists of two blocks, which are arranged horizontally at intervals and located on both sides of the U-shaped pipe clamp body.
6. A duct clamp according to claim 1, characterized in that, The fixing arm is a circular tube structure, and the U-shaped tube clamp body and the fixing arm are integrally formed.
7. A duct clamp according to claim 6, characterized in that, It also includes a reinforcing block, which is disposed between the fixing arm and the U-shaped pipe clamp body.
Citation Information
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