Exhaust pipe gasket capable of preventing layer rubbing
Through the multi-layer plate-like structure and sheathing joint design, the problem of rubbing caused by welding joints caused by thermal expansion and contraction of exhaust pipe gaskets is solved, achieving higher stability and anti-rotating effect.
Patent Information
- Application Number
- CN202422610691.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The existing exhaust pipe gaskets are fixed by spot welding between the plate-like structures, resulting in the welding points breaking under the action of thermal expansion and cold contraction, and the phenomenon of rubbing occurs.
A multi-layer plate-like structure is adopted, with through holes on each layer plate-like structure, and a stable clamping structure is formed by a sheath to avoid breaking of the solder joints.
It improves the bonding stability of the plate-like structure, prevents the phenomenon of rubbing, and improves the anti-rotating ability of the exhaust pipe gasket.
Smart Images
Figure CN223136246U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile exhaust pipe fittings, in particular to an exhaust pipe gasket for preventing layer rubbing. Background Art
[0002] The exhaust pipe is a device for reducing vibration and noise, facilitating installation and extending the service life of the exhaust noise elimination system. It is installed between the engine exhaust manifold and the muffler to make the entire exhaust system be in a flexible connection. The exhaust pipe is mainly used for light vehicles, minivans and buses, and motorcycles. The structure of the exhaust pipe is a double-layer corrugated pipe covered with a wire mesh sleeve, and snap rings are sleeved on the straight edge sections at both ends. To achieve better sound absorption effect, a telescopic joint or a mesh sleeve can be arranged inside the corrugated pipe;
[0003] The exhaust pipe gasket is an essential component installed in the automobile exhaust pipe. It is formed by overlapping multiple plate-like structures. In the existing technology, the plate-like structures of the exhaust pipe gasket are fixed by spot welding. During the use of the exhaust pipe gasket, due to the thermal expansion and contraction of the exhaust pipe, the exhaust pipe gasket is subjected to the frictional force of the exhaust pipe flange. When the strength of the solder joints of the gasket is insufficient, the gasket will be rubbed and scattered. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the defect that in the prior art, the plate-like structures of the exhaust pipe gasket are fixed by spot welding, and during the use of the exhaust pipe gasket, due to the thermal expansion and contraction of the exhaust pipe, the exhaust pipe gasket is subjected to the frictional force of the exhaust pipe flange. When the strength of the solder joints of the gasket is insufficient, the gasket will be rubbed and scattered. The utility model provides an exhaust pipe gasket for preventing layer rubbing. The exhaust pipe gasket is formed by overlapping multiple plate-like structures, and a plurality of holes penetrating through itself are provided on each layer of the plate-like structure, and the hole positions on each layer of the plate-like structure coincide. The hole positions of the overlapping multiple plate-like structures are clamped with a sheath, and the sheath can play a clamping role on the entire gasket body, making the combination stability of the plate-like structures on the gasket body higher. Compared with spot welding, the situation that the solder joints break and the plate-like structures rub and layer is avoided.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] The utility model discloses an exhaust pipe gasket for preventing layer rubbing, which comprises a gasket main body. Among them, the gasket main body is formed by laminating multiple plate-like structures. A plurality of holes penetrating through itself are formed on each plate-like structure, and the hole positions on each plate-like structure coincide. The hole positions of the laminated multiple plate-like structures are clamped by a sheath. The multiple plate-like structures are clamped tightly into one body through the sheath. Such a structural setting enables the sheath to play a clamping role on the entire gasket main body, making the combination stability of each plate-like structure on the gasket main body higher. Compared with spot welding, the situation that each plate-like structure has layer rubbing due to the fracture of the solder joints is avoided.
[0007] Preferably, the gasket main body comprises an intermediate layer board, a middle layer board and an outer layer board. Among them, there are two middle layer boards, which are respectively laminated above and below the intermediate layer board. There are two outer layer boards, which are respectively laminated on the outer surfaces of the two middle layer boards. The outer layer board, the middle layer board and the intermediate layer board all adopt a rectangular structure with a through opening in the middle.
[0008] Preferably, clamping holes one, clamping holes two and clamping holes three are respectively formed at the four corners of the outer layer board, the middle layer board and the intermediate layer board;
[0009] The cross-section of the sheath is in a "C" - shaped structure. The sheath passes through the clamping holes one, clamping holes two and clamping holes three, and clamps the outer layer board, the middle layer board and the intermediate layer board through the "C" - shaped structure at the edge. Such a structural setting enables the sheath to have a better clamping effect on the outer layer board, the middle layer board and the intermediate layer board, and improves the anti - layer - rubbing ability of the gasket main body.
[0010] Preferably, the clamping holes one adopt a structure with an inward - concave edge, so that after the sheath clamps the outer layer board, the middle layer board and the intermediate layer board, its surface will not protrude from the surface of the gasket main body, ensuring the use and installation effect of the device.
[0011] Preferably, the aperture of the clamping holes one is the same as that of the clamping holes three, and the aperture of the clamping holes two is smaller than that of the clamping holes one, so that the middle layer board is covered between the outer layer board and the intermediate layer board at the position of the clamping holes two.
[0012] Preferably, the outer layer board adopts a structure protruding outward at the through - opening position, and the middle layer board adopts a structure concave inward and downward at the through - opening position, so that the surfaces of the two middle layer boards are attached to each other, and the edge of the intermediate layer board is covered. Such a structural setting enables the five - layer board structure to have higher stability after being laminated into one body and better avoid layer rubbing.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The exhaust pipe gasket is formed by stacking multiple layers of plate-like structures, and each layer of the plate-like structure is provided with multiple holes penetrating through it, and the positions of the holes on each layer of the plate-like structure overlap. The positions of the holes of the stacked multiple layers of plate-like structures are clamped with a sheath, and the sheath can play a clamping role on the entire gasket body, so that the combination stability of each plate-like structure on the gasket body is higher. Compared with spot welding, it avoids the situation where the fracture of the welding point causes the rubbing of each plate-like structure;
[0015] By designing the structure of each plate that constitutes the exhaust pipe gasket (outer plate, middle plate and sandwich plate), after the sheath clamps the outer plate, middle plate and sandwich plate, its surface will not protrude from the surface of the gasket body, thereby ensuring the use and installation effect of the device, and the middle plate located at the through position can cover the edge of the sandwich plate, and the middle plate is covered between the outer plate and the sandwich plate at the position of the second clamping hole. This staggered covering structure makes the exhaust pipe gasket more consistent and the anti-rubbing layer stronger. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0018] Figure 3 It is an exploded view of the utility model;
[0019] Figure 4 It is a schematic diagram of the sheath installation structure of the utility model.
[0020] Figure numerals: 1, gasket body; 101, outer plate; 1011, clamping hole one; 102, middle plate; 1021, clamping hole two; 103, sandwich plate; 1031, clamping hole three; 2, sheath; 3, through opening. DETAILED DESCRIPTION
[0021] The following is combined with Figure 1 -Attached Figure 4, further illustrating a specific implementation of the utility model of an exhaust pipe gasket that prevents rubbing layers, which overcomes the prior art that the plate-like structures of the exhaust pipe gasket are fixed by spot welding. During the use of the exhaust pipe gasket, due to the thermal expansion and contraction of the exhaust pipe, the exhaust pipe gasket is subjected to the friction of the exhaust pipe flange. When the weld strength of the gasket is insufficient, the gasket will be rubbed apart. The exhaust pipe gasket is formed by stacking multiple layers of plate-like structures, and each layer of the plate-like structure is provided with multiple holes that penetrate through itself, and the positions of the holes on each layer of the plate-like structure overlap. The positions of the holes of the stacked multiple layers of plate-like structures are clamped with a sheath, and the sheath can play a clamping role on the entire gasket body, so that the combination stability of the various plate-like structures on the gasket body is higher. Compared with spot welding, it avoids the situation where the weld breaks and causes the various plate-like structures to rub layers. The utility model of an exhaust pipe gasket that prevents rubbing layers is not limited to the description of the following embodiments.
[0022] Embodiment 1:
[0023] This embodiment provides an exhaust pipe gasket that prevents rubbing layers, such as Figures 1-4 As shown, the gasket body 1 includes a gasket main body 1, wherein the gasket main body 1 is formed by stacking multiple layers of plate-like structures, each layer of the plate-like structure is provided with multiple holes penetrating through itself, and the positions of the holes on each layer of the plate-like structure overlap, and the positions of the holes of the stacked multiple layers of plate-like structures are clamped with a sheath 2, and the stacked multiple layers of plate-like structures are clamped together by the sheath 2.
[0024] By adopting the above technical solution:
[0025] The sheath 2 can clamp the entire gasket body 1, so that the bonding stability of the various plate-like structures on the gasket body 1 is higher. Compared with spot welding, it avoids the situation where the welding points are broken and the various plate-like structures are rubbed.
[0026] Example 2
[0027] On the basis of Example 1, in this embodiment, the gasket body 1 includes a sandwich plate 103, a middle plate 102 and an outer plate 101, wherein two middle plates 102 are provided, respectively superimposed on the upper and lower parts of the sandwich plate 103, and two outer plates 101 are provided, respectively superimposed on the outer surfaces of the two middle plates 102, and the outer plate 101, the middle plate 102 and the sandwich plate 103 all adopt a rectangular structure with a through opening 3 in the middle.
[0028] Preferably, the four corners of the outer plate 101, the middle plate 102, and the sandwich plate 103 are respectively provided with a clamping hole 1011, a clamping hole 2 1021, and a clamping hole 3 1031;
[0029] The cross-section of the sheath 2 is in a "C" shape structure. The sheath 2 passes through the first clamping hole 1011, the second clamping hole 1021 and the third clamping hole 1031, and clamps the outer layer plate 101, the middle layer plate 102 and the sandwich layer plate 103 through the "C" shape structure at the edge. Such a structural setting makes the clamping effect of the sheath 2 on the outer layer plate 101, the middle layer plate 102 and the sandwich layer plate 103 better, and improves the anti-twisting layer ability of the gasket body 1.
[0030] Preferably, the first clamping hole 1011 adopts a structure with an inward concave edge.
[0031] Preferably, the aperture of the first clamping hole 1011 is the same as that of the third clamping hole 1031, and the aperture of the second clamping hole 1021 is smaller than that of the first clamping hole 1011, so that the middle layer plate 102 is covered between the outer layer plate 101 and the sandwich layer plate 103 at the position of the second clamping hole 1021.
[0032] By adopting the above technical solutions:
[0033] After the sheath 2 clamps the outer layer plate 101, the middle layer plate 102 and the sandwich layer plate 103, its surface will not protrude from the surface of the gasket body 1, ensuring the use and installation effect of the device.
[0034] Embodiment 3
[0035] On the basis of Embodiment 1, in this embodiment, the outer layer plate 101 adopts a structure protruding outward at the position of the through port 3, and the middle layer plate 102 adopts a structure concave inward and downward at the position of the through port 3, so that the surfaces of the two middle layer plates 102 are attached to each other and cover the edge of the sandwich layer plate 103.
[0036] By adopting the above technical solutions:
[0037] When the five-layer plate structure is laminated into one body, the stability is higher and the anti-twisting effect is better.
[0038] It should be noted that: when the exhaust pipe gasket connected by spot welding is subjected to 4000 times of thermal and cold shocks, the exhaust pipe gasket will show a twisting phenomenon, while the exhaust pipe gasket improved by this application does not show a twisting phenomenon after being subjected to 11000 times of thermal and cold shocks.
[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. An exhaust pipe gasket for preventing rubbing layers, characterized in that: It includes a gasket body (1). The gasket body (1) is formed by laminating multiple plate-like structures. Multiple holes penetrating through each plate-like structure are provided on each layer, and the hole positions on each layer of the plate-like structure coincide. The hole positions of the laminated multiple plate-like structures are clamped by a sheath (2), and the laminated multiple plate-like structures are clamped tightly into one body through the sheath (2).
2. The exhaust pipe gasket for preventing rubbing layers according to claim 1, characterized in that: The gasket body (1) includes: a sandwich panel (103); two middle layers (102) which are respectively laminated above and below the sandwich panel (103); two outer layers (101) which are respectively laminated on the outer surfaces of the two middle layers (102); wherein, the outer layer (101), the middle layer (102) and the sandwich panel (103) all adopt a rectangular structure with a through hole (3) in the middle.
3. The exhaust pipe gasket for preventing rubbing layers according to claim 2, characterized in that: Clamping holes one (1011), clamping holes two (1021) and clamping holes three (1031) are respectively provided at the four corners of the outer layer (101), the middle layer (102) and the sandwich panel (103); The cross-section of the sheath (2) is in a "C" - shaped structure. The sheath (2) passes through the clamping holes one (1011), clamping holes two (1021) and clamping holes three (1031), and clamps the outer layer (101), the middle layer (102) and the sandwich panel (103) through the "C" - shaped structure at the edge.
4. The exhaust pipe gasket for preventing rubbing layers according to claim 3, characterized in that: The clamping hole one (1011) adopts a structure with an inward concave edge.
5. The exhaust pipe gasket for preventing rubbing layers according to claim 4, characterized in that: The aperture of the clamping hole one (1011) is the same as that of the clamping hole three (1031), and the aperture of the clamping hole two (1021) is smaller than that of the clamping hole one (1011), so that the middle layer (102) is covered between the outer layer (101) and the sandwich panel (103) at the position of the clamping hole two (1021).
6. The exhaust pipe gasket for preventing rubbing layers according to claim 4, characterized in that: The outer layer (101) adopts a structure protruding outward at the position of the through hole (3), and the middle layer (102) adopts a structure concave inward and downward at the position of the through hole (3), so that the surfaces of the two middle layers (102) are attached to cover the edge of the sandwich panel (103).