Clamp for exhaust pipe
The clamping device, with its electrically rotating base and variable clamping mechanism, solves the problem of poor versatility of traditional clamps, enabling adaptive clamping of different exhaust pipes and improving work efficiency and equipment utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI NINGGUO HANTAI NEW MATERIALS LTD CO
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional exhaust pipe clamps have poor versatility and are difficult to adapt to exhaust pipes of different models, specifications and shapes, resulting in high equipment procurement costs, large storage space occupation and cumbersome operation, thus reducing work efficiency.
A clamping device was designed, comprising an electrically rotating base and a variable clamping mechanism. It utilizes floating components and solenoid valves to achieve adaptive clamping, and combines motor drive and guide rods to ensure the stability and accuracy of clamping.
It enables precise clamping of exhaust pipes of different specifications and shapes, reduces clamping time and cost, and improves processing and inspection efficiency.
Smart Images

Figure CN224196678U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping technology, specifically to a clamp for an exhaust pipe. Background Technology
[0002] In fields such as automobile manufacturing and machinery repair, the processing and inspection of exhaust pipes often require the use of clamps for fixation. Traditional exhaust pipe clamps are mostly fixed structures with relatively limited clamping dimensions and shapes, and require clamping and fixing multiple positions on the exhaust pipe, making the fixation operation cumbersome. When dealing with exhaust pipes of different models, specifications, and shapes (such as round, oval, and irregular shapes), these traditional clamps are often unsuitable. To fix multiple types of exhaust pipes, multiple specialized clamps are required, which not only increases equipment procurement costs and occupies a lot of storage space, but also consumes a lot of time during clamp replacement, reducing work efficiency. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a clamp for exhaust pipes, which solves the technical problem of poor versatility of existing clamps.
[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a clamp for an exhaust pipe, including an electric rotating base, a "U"-shaped mounting seat fixedly connected to the electric rotating base, a clamping drive mechanism installed at the bottom of the mounting seat, and two sets of symmetrically arranged variable clamping mechanisms on the clamping drive mechanism, both sets of variable clamping mechanisms being slidably arranged within the mounting seat;
[0005] The variable clamping mechanism includes a clamping seat, on the side of which multiple floating components are movably arranged in an array. An air pipe is connected to the side wall of the clamping seat, and a solenoid valve is installed on the air pipe.
[0006] Preferably, the floating component includes a floating rod movably connected to the side of the clamping seat. The end of the floating rod on the outside of the clamping seat has a round head structure and is fitted with a rubber sleeve. The end of the floating rod on the inside of the clamping seat is fixed with a piston, which is elastically connected to the inside of the clamping seat by a spring.
[0007] Preferably, the clamp has a cavity, and the cavity is in communication with the piston.
[0008] Preferably, the clamping drive mechanism includes a motor mounted on the bottom of the mounting base, a drive disk fixed on the output shaft of the motor, the drive disk being hinged to a slide plate located on both sides of the drive disk via two sets of connecting rods, two symmetrically arranged oblique holes being opened on the slide plate, a fixing block being slidably arranged in the oblique holes, and the fixing block being fixed to the bottom of the variable clamping mechanism.
[0009] Preferably, the bottom of the slide plate near both ends is fixed with a slider, the slider is slidably mounted on a slide rail, and the slide rail is mounted on the bottom of the mounting base.
[0010] Preferably, the variable clamping mechanism has two sets of guide rods fixed on its side wall and slidably connected to the side wall of the mounting base.
[0011] By employing the above technical solution, this utility model provides a clamp for exhaust pipes, which has at least the following beneficial effects:
[0012] 1. This exhaust pipe clamp, with its variable clamping mechanism, can adaptively adjust to exhaust pipes of different shapes and sizes, thereby achieving precise clamping and fixing of exhaust pipes of different specifications. Compared with traditional fixed structure clamps that can only adapt to a single type of exhaust pipe, this clamp greatly improves versatility, reduces the time and equipment procurement costs caused by changing different clamps, and is simple to operate and easy to clamp. It significantly improves work efficiency in exhaust pipe processing and inspection scenarios.
[0013] 2. This exhaust pipe clamp, by setting an electric rotating base, can change the position of both ends of the clamp while maintaining a fixed clamping position, making it easier to process and inspect both ends of the exhaust pipe, and further improving work efficiency. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:
[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0016] Figure 2 This is a top view of the overall structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the bottom structure of the clamping drive mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the disassembled structure of the skateboard, slider, and slide rail of this utility model;
[0019] Figure 5 This is a partial cross-sectional structural schematic diagram of the variable clamping mechanism of this utility model;
[0020] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.
[0021] Figure label:
[0022] 1. Electric rotating base; 2. Mounting base; 3. Clamping drive mechanism; 31. Motor; 32. Drive plate; 33. Connecting rod; 34. Slide plate; 35. Fixing block; 4. Variable clamping mechanism; 41. Clamping seat; 411. Cavity; 42. Floating component; 421. Floating rod; 422. Rubber sleeve; 423. Spring; 424. Piston; 43. Air pipe; 44. Solenoid valve; 5. Guide rod; 6. Slider; 7. Slide rail. 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] The exhaust pipe is a key component of the engine's exhaust system. Its main function is to collect and discharge the exhaust gases produced by engine combustion. If the system is equipped with a three-way catalytic converter and a muffler, it can also purify the exhaust gases and reduce noise.
[0025] Due to the inherent limitations of existing technologies, such as poor versatility, please refer to... Figures 1-6 This embodiment provides an exhaust pipe clamp that can accurately clamp and fix exhaust pipes of different specifications. It has the advantages of strong versatility, simple operation, and convenient clamping. It significantly improves work efficiency in exhaust pipe processing and inspection scenarios. The clamp includes an electric rotating base 1, on which a "U"-shaped mounting seat 2 is fixed. A clamping drive mechanism 3 is installed at the bottom of the mounting seat 2. The clamping drive mechanism 3 is provided with two sets of symmetrically arranged variable clamping mechanisms 4. Both sets of variable clamping mechanisms 4 are slidably arranged in the mounting seat 2. The electric rotating base 1 can change the position of the two ends of the clamp while maintaining clamping and fixing, which facilitates processing and inspection of the two ends of the exhaust pipe and further improves work efficiency. The clamping drive mechanism 3 can be used to drive the movement of the variable clamping mechanisms 4. When the two sets of variable clamping mechanisms 4 are close together, the exhaust pipe can be fixed between them. When the two sets of variable clamping mechanisms 4 are far apart, the exhaust pipe can be released.
[0026] Traditional clamping structures are simple and difficult to adapt to the complex shapes and various sizes of exhaust pipes. To address this issue, the variable clamping mechanism 4 includes a clamping base 41. Multiple floating members 42 arranged in an array are movably mounted on the side of the clamping base 41. An air pipe 43 is connected to the side wall of the clamping base 41, and a solenoid valve 44 is installed on the air pipe 43. The floating members 42 can move on the clamping base 41. Since the floating members 42 are arranged in an array, when the exhaust pipe is placed between two sets of variable clamping mechanisms 4, some of the floating members 42 in contact with the exhaust pipe can flexibly change their extension and retraction length according to their shape and size. With the cooperation of multiple floating members 42, the exhaust pipe is clamped and fixed.
[0027] Furthermore, the floating component 42 includes a floating rod 421 movably connected to the side of the clamp 41. The end of the floating rod 421 located outside the clamp 41 has a rounded head and is fitted with a rubber sleeve 422. The rubber sleeve 422 can prevent the floating rod 421 from causing pinching damage when clamping the exhaust pipe. A piston 424 is fixedly installed at the end of the floating rod 421 located inside the clamp 41. The piston 424 is elastically connected to the inside of the clamp 41 via a spring 423. The piston 424 ensures the airtightness of the cavity 411, preventing the problem of fixation failure due to air leakage. Furthermore, a cavity 411 is opened inside the clamp 41, and the cavity 411 and the piston 424 are interconnected. When the floating part 42 in contact with the exhaust pipe is squeezed by the exhaust pipe, it will contract. At this time, the floating rod 421 will squeeze the air inside the cavity 411 out through the air pipe 43. After the exhaust pipe is completely clamped, the solenoid valve 44 is closed. At this time, air cannot enter the cavity 411, and the floating rod 421 is in a locked state. In this way, the floating rod 421 will not return to its original position after the exhaust pipe is removed. This allows for quick clamping of the same type of exhaust pipe. When clamping other types of exhaust pipes, the solenoid valve 44 is opened first. Under the elastic force of the spring 423, the floating rod 421 is reset, thereby drawing outside air back into the cavity 411 and repeating the above operation steps.
[0028] Since two sets of variable clamping mechanisms 4 are required to clamp and fix the exhaust pipe on both sides, it is necessary to control the synchronous movement of the two sets of variable clamping mechanisms 4 to achieve the fixing and loosening of the exhaust pipe. Please refer to [the relevant documentation]. Figure 3The clamping drive mechanism 3 includes a motor 31 mounted on the bottom of the mounting base 2. A drive disk 32 is fixed on the output shaft of the motor 31. The drive disk 32 is hinged to a slide plate 34 located on both sides of the drive disk 32 via two sets of connecting rods 33. Two symmetrically arranged oblique holes are provided on the slide plate 34. A fixing block 35 is slidably arranged in the oblique holes. The fixing block 35 is fixed to the bottom of the variable clamping mechanism 4. The motor 31 works and drives the drive disk 32 to rotate. The drive disk 32 can drive the slide plate 34 to move via the connecting rods 33. Since the slide plate 34 is provided with oblique holes, when the slide plate 34 moves, the oblique holes exert a squeezing effect on the fixing block 35, thereby causing the variable clamping mechanism 4 to move, so as to achieve the purpose of synchronously controlling the movement of the two sets of variable clamping mechanisms 4.
[0029] Since the connecting rod 33 and the slide plate 34 are hinged, the slide plate 34 is prone to deviation and wobbling during movement, making it difficult to maintain stable movement. To address this issue, sliders 6 are fixedly attached to the bottom of the slide plate 34 near both ends. The sliders 6 are slidably mounted on the slide rails 7, which are installed at the bottom of the mounting base 2. The sliders 6 and the slide rails 7 work together to ensure the stability and straightness of the slide plate 34 during sliding, thereby improving the accuracy and stability of the variable clamping mechanism 4.
[0030] Since the sliding plate 34 and the variable clamping mechanism 4 are only connected by the fixed block 35, the variable clamping mechanism 4 is prone to problems such as displacement and shaking during movement. To address this issue, two sets of guide rods 5 are fixed on the side wall of the variable clamping mechanism 4 and slidably connected to the side wall of the mounting base 2. The guide rods 5 can guide the variable clamping mechanism 4 to ensure that it slides smoothly in the mounting base 2, thereby improving the stability and accuracy of the clamping process.
[0031] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamp for an exhaust pipe, comprising an electrically rotating base (1), characterized in that: The electric rotating base (1) is fixed with a "U"-shaped mounting seat (2). A clamping drive mechanism (3) is installed at the bottom of the mounting seat (2). The clamping drive mechanism (3) is provided with two sets of symmetrically arranged variable clamping mechanisms (4). Both sets of variable clamping mechanisms (4) are slidably arranged inside the mounting seat (2). The variable clamping mechanism (4) includes a clamp (41), and multiple floating parts (42) arranged in an array are movably provided on the side of the clamp (41). An air pipe (43) is connected to the side wall of the clamp (41), and a solenoid valve (44) is installed on the air pipe (43).
2. The exhaust pipe clamp according to claim 1, characterized in that: The floating component (42) includes a floating rod (421) movably connected to the side of the clamp (41). The end of the floating rod (421) outside the clamp (41) has a round head structure and is fitted with a rubber sleeve (422). The end of the floating rod (421) inside the clamp (41) is fixed with a piston (424). The piston (424) is elastically connected to the inside of the clamp (41) through a spring (423).
3. The exhaust pipe clamp according to claim 2, characterized in that: The clamp (41) has a cavity (411) inside, and the cavity (411) is connected to the piston (424).
4. The exhaust pipe clamp according to claim 1, characterized in that: The clamping drive mechanism (3) includes a motor (31) installed at the bottom of the mounting base (2). A drive disk (32) is fixed on the output shaft of the motor (31). The drive disk (32) is hinged to the slide plate (34) located on both sides of the drive disk (32) through two sets of connecting rods (33). Two symmetrically arranged oblique holes are opened on the slide plate (34). A fixing block (35) is slidably arranged in the oblique hole. The fixing block (35) is fixed to the bottom of the variable clamping mechanism (4).
5. The exhaust pipe clamp according to claim 4, characterized in that: The slide plate (34) has sliders (6) fixed to the bottom of both ends. The sliders (6) are slidably mounted on the slide rail (7), which is installed at the bottom of the mounting base (2).
6. The exhaust pipe clamp according to claim 1, characterized in that: Two sets of guide rods (5) are fixed on the side wall of the variable clamping mechanism (4) and are slidably connected to the side wall of the mounting base (2).