Automobile exhaust pipe mounting rack

Abstract

The invention belongs to the technical field of automobile parts, and discloses an automobile exhaust pipe mounting rack which comprises a fixing plate, an upper clamping plate is arranged below the fixing plate, a lower clamping plate is arranged below the upper clamping plate, a screw is rotationally connected to the center of the bottom of the lower clamping plate, a support is fixedly connected to the upper clamping plate, and the support is in threaded connection with the screw. The damper is sleeved with a buffer spring, the ash removal assembly comprises a hollow pipe fixedly connected to the fixing plate, a movable rod is movably connected to the interior of the hollow pipe, the bottom end of the movable rod extends to the exterior of the hollow pipe, a reset spring is additionally arranged in the hollow pipe, and one end of the reset spring is fixedly connected with the inner wall of the hollow pipe; bristles are evenly arranged on the inner side face of the circular ring, the upper clamping plate and the lower clamping plate are clamped at the tail end of the exhaust pipe, and the connecting frame is of a U-shaped structure arching outwards in the exhaust direction. The problem that the buffering effect is affected by accumulated dust due to the fact that dust attached to the damping structure is difficult to automatically remove is effectively avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile accessories, and in particular relates to an automobile exhaust pipe mounting bracket. Background Art

[0002] The car exhaust pipe is part of the engine exhaust system, and its main function is to discharge the exhaust gas generated by the engine combustion out of the car. When the engine is running, it will generate vibrations, and the exhaust system will transmit these vibrations. If the exhaust pipe is not fixed properly, it will generate additional noise due to the vibration, so the car exhaust pipe usually needs to use a special mounting bracket to fix it to the car chassis.

[0003] For example, a Chinese utility model patent with the announcement number CN212979866U discloses a vehicle exhaust pipe fixing device, which can absorb and mitigate vibrations when the engine is working, effectively reducing the vibrations transmitted to the exhaust pipe, thereby playing a certain protective role on the exhaust pipe. At the same time, through the setting of the limit nut and the rubber sleeve, the extension and contraction of the shock-absorbing spring can be limited to a certain extent, so as to avoid spring fatigue failure and increase its service life. With respect to the above-mentioned related technologies, the inventor believes that there are the following defects: However, in actual use of the device, since the shock-absorbing structure is directly exposed to the air and is close to the exhaust pipe, dust and some particulate matter in the exhaust gas are easily attached to its surface, and the accumulated dust will affect the cushioning effect that the shock-absorbing structure can achieve. Summary of the invention

[0004] The invention aims to provide an automobile exhaust pipe mounting bracket which can automatically remove attached dust.

[0005] The technical solution adopted by the present invention to solve the above problem is: an automobile exhaust pipe mounting bracket, comprising: A fixing plate, the bottom of the fixing plate is fixedly connected with a vertical rod, an upper clamping plate is arranged below the fixing plate, a lower clamping plate is arranged below the upper clamping plate, a screw is rotatably connected to the bottom center of the lower clamping plate, a bracket is fixedly connected to the upper clamping plate and the bracket and the screw are threadedly connected, a damper is fixedly connected between the bracket and the vertical rod, and a buffer spring is sleeved on the outside of the damper; A dust cleaning component, which includes a hollow tube fixedly connected to a fixed plate, a movable rod movably connected inside the hollow tube and the bottom end of the movable rod extends to the outside of the hollow tube, a return spring is added inside the hollow tube and one end of the return spring is fixedly connected to the inner wall of the hollow tube, the bottom end of the movable rod is fixedly connected to a connecting frame, both ends of the connecting frame are fixedly connected to circular rings, and the inner side surfaces of the circular rings are evenly provided with bristles.

[0006] The fixing plate is a flat plate structure with a vertical rod fixedly connected to the bottom, which is used to fix the entire mounting frame. It is generally connected to the vehicle chassis by bolts to provide a stable foundation. It can also be fixed by welding or other methods.

[0007] The vertical rod is vertically connected to the bottom of the fixed plate and serves as a connector to connect the fixed plate with other components (such as dampers) to transmit supporting force.

[0008] The upper clamping plate is located below the fixed plate, and the lower clamping plate is located below the upper clamping plate. The upper clamping plate is fixedly connected with a bracket, and the bottom center of the lower clamping plate is connected with a screw rod. It is used to clamp the exhaust pipe. By rotating the screw rod, the distance between the upper and lower clamping plates can be adjusted so as to firmly clamp the exhaust pipe.

[0009] In particular, the upper clamping plate and the lower clamping plate are clamped at the end of the exhaust pipe, and the connecting frame has a U-shaped structure that arches outward in the exhaust direction, so that when the connecting frame moves up and down, it can avoid the exhaust pipe and avoid collision.

[0010] The screw is rotatably connected to the bottom center of the lower clamping plate. By rotating the screw, the lower clamping plate can be moved up and down to adjust the clamping force between the clamping plates, thereby fixing or releasing the exhaust pipe.

[0011] The bracket is fixedly connected to the upper clamping plate and is threadedly connected to the screw rod, serving as a rotation fulcrum of the screw rod. The clamping force is provided through the threaded connection, and the clamping force can be adjusted.

[0012] The damper is connected between the bracket and the vertical rod, absorbing and cushioning the vibration and impact from the exhaust pipe, and can absorb the vibration itself to avoid transmitting it to the entire vehicle body, thereby improving ride comfort and protecting the exhaust system and improving its durability.

[0013] The buffer spring sleeve is installed on the outside of the damper to provide additional buffering and elastic support, enhance the vibration absorption effect, and provide better protection when the exhaust pipe is impacted.

[0014] The hollow tube is fixedly connected to the fixed plate, and a movable rod is movably connected inside the hollow tube. The hollow tube serves as a guide and support structure for the movable rod, allowing the movable rod to slide therein while protecting the internal components.

[0015] The movable rod is placed inside the hollow tube, and the bottom end extends to the outside of the hollow tube. The movable rod can move up and down in the hollow tube to drive the connecting frame and the ring to perform dust cleaning operations.

[0016] The return spring is installed inside the hollow tube, with one end fixed to the inner wall of the hollow tube and the other end connected to the movable rod. The return spring provides elastic force to restore the movable rod to its initial position when no external force is applied, ensuring the reciprocating movement of the dust cleaning component and the automatic return function.

[0017] The connecting frame is fixedly connected to the bottom end of the movable rod, and is used to support and connect the ring, and transmit the movement of the movable rod to the ring. The movable rod is set up with a structure that arches in the exhaust direction, so that it will not hit the exhaust pipe during the up and down movement.

[0018] A ring is fixedly connected to each end of the connecting frame, and bristles are evenly arranged on the inner side. The bristles are in contact with the exhaust pipe surface to perform a cleaning operation to remove impurities such as dust and carbon deposits. The bristles are evenly distributed on the inner side of the ring, and as the ring moves up and down, they contact and clean the outer surface of the buffer spring, helping to keep the buffer spring clean and prevent it from rusting or being contaminated and causing a decrease in elasticity.

[0019] A further preferred technical solution is that: the top end of the movable rod is fixedly connected to a limit plate, and the limit plate is fixedly connected to one end of a return spring.

[0020] Among them, the top end of the movable rod is fixedly connected to the bottom of the limit plate by welding, threading or other fastening methods. The limit plate is usually a flat structure, which is arranged inside the hollow tube and has a sufficient area to contact the reset spring and the movable rod. The rising position of the movable rod is limited in the hollow tube, and a compression fixing point is provided for the reset spring. One end of the reset spring is fixed to the inner wall of the hollow tube, and the other end is connected to the limit plate. One end of the reset spring can be fixed to the limit plate by welding, bolts or embedding to ensure that the spring can effectively apply the reset force during the movement of the movable rod.

[0021] A further preferred technical solution is that a guide block is fixedly connected to the limit plate.

[0022] A further preferred technical solution is that: a guide groove for installing the guide block is provided on the inner wall of the hollow tube.

[0023] Among them, the limit plate works together through a guide block and a hollow tube through a guide groove. The guide block is usually a small block of rectangular or other suitable shapes, fixedly connected to the limit plate, perpendicular to the surface of the limit plate, and the guide block can be fixed to the limit plate by welding, bolts or rivets to ensure its stability. The guide block acts as a guide in the hollow tube, limiting the rotation of the movable rod and ensuring that it moves up and down smoothly along the axis of the hollow tube. A guide groove matching the shape of the guide block is provided on the inside of the hollow tube, and the length of the groove is equivalent to the axial length of the hollow tube to allow the guide block to slide therein. The guide groove in the hollow tube is used to accommodate the guide block, limit the lateral movement and rotation of the movable rod, and ensure the stable linear motion of the movable rod.

[0024] A further preferred technical solution is that the annular ring is sleeved on the outside of the buffer spring. The inside of the annular ring is relatively large so that it can be sleeved on the outside of the buffer spring, and the bristles on the inside contact with the buffer spring for cleaning.

[0025] A further preferred technical solution is that: the fixing plate is symmetrically provided with mounting holes, and fixing bolts are arranged in the mounting holes.

[0026] Among them, the fixing plate is usually a flat plate of a rectangular or other shape with sufficient strength and rigidity. On the fixing plate, mounting holes are generally opened symmetrically on both sides to ensure uniform force and stability. These holes are usually round and suitable for the size of the fixing bolts. The mounting holes are symmetrically arranged on both sides of the fixing plate, and are usually laid out according to design requirements and force analysis to ensure stability after installation. The diameter of the hole is slightly larger than the diameter of the fixing bolt so that the bolt can pass through smoothly and be installed. Fixing bolts use: standard bolts, including screws, nuts, and washers that may be required. The fixing plate is tightly connected to other structural parts (such as mounting bases, brackets or other devices on the chassis of the car) through the mounting holes. The bolts pass through the mounting holes, the nuts are tightened on the other side, and washers may be used to disperse pressure and protect the connection surface.

[0027] A further preferred technical solution is that silicone shock-absorbing pads are provided on the opposite surfaces of the upper clamping plate and the lower clamping plate.

[0028] Among them, the upper splint and the lower splint are two plates with semicircular arch structures located in the same vertical plane. When the two are pieced together, they form a ring. The inner diameter of the ring is just slightly larger than the outer diameter of the automobile exhaust pipe. The automobile exhaust pipe in the middle is fixed by clamping force to provide stable support.

[0029] Silicone shock pads are made of silicone and have good elasticity and shock absorption properties. They are usually in the form of thin sheets that match the shape of the opposite surface of the clamping plate, and can be rectangular, circular or other shapes as required by the design. The thickness is moderate to provide sufficient shock absorption effect without affecting the normal clamping function of the clamping plate. The silicone shock pads are adhered or embedded on the opposite surfaces of the upper and lower clamping plates respectively, ensuring that the silicone pads can be in close contact when clamping. The silicone pads can be fixed to the clamping plate by adhesive, or designed as an embedded structure, and fixed in place by the grooves of the clamping plate. During the clamping process, the silicone shock pads play a role in isolating vibrations and shocks, protecting the clamped object, and reducing loosening or damage caused by vibration.

[0030] A further preferred technical solution is that two vertical rods are provided and are respectively fixedly connected to two sides of the bottom of the fixing plate.

[0031] A further preferred technical solution is that a guide rod is fixedly connected to the bracket and the guide rod is slidably connected to the lower clamping plate.

[0032] A further preferred technical solution is that two ends of the buffer spring are fixedly connected to the vertical rod and the bracket respectively.

[0033] One end of the buffer spring is connected to the vertical rod by a fixing device (such as a nut, bolt or welding point). This connection method ensures that the spring can stably exert its buffering effect on the vertical rod. The other end of the buffer spring is connected to the bracket by a similar fixing device. This can be achieved through a preset hole, or by welding or snapping.

[0034] In summary, the present invention has the following benefits: 1. When the car is driving or encountering bumps, the present invention utilizes the elastic effect of the return spring itself and the sliding cooperation between the guide block and the guide groove, so that the movable rod can automatically move vertically in the hollow tube. The movement of the movable rod will drive the two groups of circular rings fixedly connected to it through the connecting frame to move, thereby driving the bristles to move together to sweep away the dust attached to the buffer spring in the exhaust gas discharged from the exhaust pipe of the car, effectively avoiding the problem that it is difficult to automatically remove the dust attached to the shock-absorbing structure, so that the accumulated dust will affect its buffering effect.

[0035] 2. The present invention utilizes the force generated by the bumps during the driving of the car to drive the bristles to move up and down reciprocatingly, without the need for additional power components, thus saving energy and having a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the dust cleaning component of the present invention; Figure 3 It is a schematic diagram of the vertical section three-dimensional structure of the hollow tube of the present invention; Figure 4 It is a front view structural schematic diagram of the lower clamping plate of the present invention.

[0037] In the accompanying drawings, the components represented by each reference numeral are as follows: 1. fixed plate; 2. vertical rod; 3. upper clamping plate; 4. lower clamping plate; 5. screw rod; 6. bracket; 7. damper; 8. buffer spring; 9. fixing bolt; 10. silicone shock-absorbing pad; 11. guide rod; 101. hollow tube; 102. movable rod; 103. reset spring; 104. connecting frame; 105. ring; 106. bristles; 107. limit plate; 108. guide block; 109. guide groove. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0040] Example: Please combine Figure 1-Figure 4 , an automobile exhaust pipe mounting bracket of this embodiment includes: The fixing plate 1 has vertical rods 2 fixedly connected on both sides of the bottom of the fixing plate 1. An upper clamping plate 3 is arranged below the fixing plate 1. A lower clamping plate 4 is arranged below the upper clamping plate 3. A screw 5 is rotatably connected to the bottom center of the lower clamping plate 4. A bracket 6 is fixedly connected to the upper clamping plate 3 and the bracket 6 is threadedly connected to the screw 5. A damper 7 is fixedly connected between the bracket 6 and the vertical rod 2. A buffer spring 8 is sleeved on the outside of the damper 7. The two ends of the buffer spring 8 are fixedly connected to the vertical rod 2 and the bracket 6 respectively. Mounting holes are symmetrically provided on the fixing plate 1. Fixing bolts 9 are arranged in the mounting holes for the convenience of fixing the device to the chassis of the automobile. The upper clamping plate 3 and the lower clamping plate 4 are both designed with arc structures. The upper clamping plate 3 and the lower clamping plate 4 can form a complete circular ring for the convenience of clamping and fixing the automobile exhaust pipe. Two sets of guide rods 11 are symmetrically fixedly connected to the bracket 6 and the guide rods 11 are slidably connected to the lower clamping plate 4, which can play a certain guiding role in the vertical movement of the lower clamping plate 4. The dust cleaning component includes a hollow tube 101 fixedly connected to the fixed plate 1, a movable rod 102 is movably connected inside the hollow tube 101, and the bottom end of the movable rod 102 extends to the outside of the hollow tube 101, a return spring 103 is added inside the hollow tube 101, and one end of the return spring 103 is fixedly connected to the inner wall of the hollow tube 101, the bottom end of the movable rod 102 is fixedly connected to a connecting frame 104, both ends of the connecting frame 104 are fixedly connected to a circular ring 105, and the inner side surface of the circular ring 105 is evenly provided with bristles 106, The top of the movable rod 102 is fixedly connected to a limit plate 107, and the limit plate 107 is fixedly connected to the other end of the return spring 103 relative to the inner wall of the hollow tube 101, which can prevent the movable rod 102 from detaching from the hollow tube 101. Guide blocks 108 are fixedly connected on both sides of the limit plate 107. Guide grooves 109 are symmetrically provided on the inner wall of the hollow tube 101. The guide blocks 108 and the guide grooves 109 are slidably connected to each other, which can play a certain guiding role in the vertical movement of the movable rod 102. The ring 105 is sleeved on the outside of the buffer spring 8.

[0041] The implementation principle of an automobile exhaust pipe mounting bracket in the embodiment of the present application is as follows: first, the fixing plate 1 is fixedly connected to the automobile chassis by fixing bolts 9 and the automobile exhaust pipe is passed through the upper clamping plate 3 and the lower clamping plate 4 at the same time; finally, the screw rod 5 is rotated, and the sliding cooperation between the lower clamping plate 4 and the guide rod 11 and the threaded connection cooperation between the screw rod 5 and the bracket 6 are utilized to drive the lower clamping plate 4 to approach the upper clamping plate 3 to clamp and fix the automobile exhaust pipe; the cooperation between the damper 7 and the buffer spring 8 is utilized to reduce the vibration generated during the driving process of the automobile and when the engine is working, thereby effectively protecting the automobile exhaust pipe. At the same time, when the car is driving or encountering bumps, the elastic effect of the return spring 103 itself and the sliding cooperation between the guide block 108 and the guide groove 109 are utilized to make the movable rod 102 automatically move vertically in the hollow tube 101. The movement of the movable rod 102 will drive the two groups of circular rings 105 fixedly connected to it through the connecting frame 104 to move, thereby driving the bristles 106 to move together to sweep away the dust attached to the buffer spring 8 in the exhaust gas discharged from the exhaust pipe of the car, effectively avoiding the problem that it is difficult to automatically remove the dust attached to the shock absorbing structure, so that the accumulated dust will affect its buffering effect.

[0042] In addition, the upper clamping plate 3 and the lower clamping plate 4 are clamped at the end of the exhaust pipe, and the connecting frame 104 has a U-shaped structure that arches outward in the exhaust direction, so that when the connecting frame 104 moves up and down, it can avoid the exhaust pipe and avoid collision.

[0043] In addition, a further improvement is that the opposite surfaces of the upper clamping plate 3 and the lower clamping plate 4 are provided with a silicone shock-absorbing pad 10, which can improve the shock-resistant effect of the automobile exhaust pipe.

[0044] In addition, the same or similar element symbols are used to refer to the same or similar parts or steps in the drawings and descriptions as much as possible. The drawings are presented in simplified form and are not drawn to exact scale. For convenience and clarity only, directional terms such as top, bottom, left, right, upward, above, above, below, below, behind, and in front may be used with respect to the drawings. These and similar directional terms should not be construed as limiting the scope of the present disclosure in any way.

Claims

1. An automobile exhaust pipe mounting bracket, characterized in that: include: A fixed plate (1), wherein the bottom of the fixed plate (1) is fixedly connected to a vertical rod (2), an upper clamping plate (3) is arranged below the fixed plate (1), a lower clamping plate (4) is arranged below the upper clamping plate (3), a screw rod (5) is rotatably connected to the bottom center of the lower clamping plate (4), a bracket (6) is fixedly connected to the upper clamping plate (3), and the bracket (6) and the screw rod (5) are threadedly connected, a damper (7) is fixedly connected between the bracket (6) and the vertical rod (2), and a buffer spring (8) is sleeved on the outside of the damper (7); A dust cleaning component, the dust cleaning component comprising a hollow tube (101) fixedly connected to a fixed plate (1), the interior of the hollow tube (101) being movably connected to a movable rod (102) and the bottom end of the movable rod (102) extending to the outside of the hollow tube (101), the interior of the hollow tube (101) being provided with a return spring (103) and one end of the return spring (103) being fixedly connected to the inner wall of the hollow tube (101), the bottom end of the movable rod (102) being fixedly connected to a connecting frame (104), both ends of the connecting frame (104) being fixedly connected to a circular ring (105), and the inner side surface of the circular ring (105) being evenly provided with bristles (106); The upper clamping plate and the lower clamping plate are clamped at the end of the exhaust pipe, and the connecting frame has a U-shaped structure that arches outward in the exhaust direction.

2. The automobile exhaust pipe mounting bracket according to claim 1, characterized in that: The top end of the movable rod (102) is fixedly connected to a limiting plate (107), and the limiting plate (107) is fixedly connected to one end of a return spring (103).

3. The automobile exhaust pipe mounting bracket according to claim 2, characterized in that: A guide block (108) is fixedly connected to the limiting plate (107).

4. The automobile exhaust pipe mounting bracket according to claim 3, characterized in that: The inner wall of the hollow tube (101) is provided with a guide groove (109) for mounting the guide block (108).

5. The automobile exhaust pipe mounting bracket according to claim 1, characterized in that: The circular ring (105) is sleeved on the outside of the buffer spring (8).

6. The automobile exhaust pipe mounting bracket according to claim 1, characterized in that: The fixing plate (1) is provided with a mounting hole, and a fixing bolt (9) is arranged in the mounting hole.

7. The automobile exhaust pipe mounting bracket according to claim 1, characterized in that: The opposing surfaces of the upper clamping plate (3) and the lower clamping plate (4) are both provided with silica gel shock-absorbing pads (10).

8. The automobile exhaust pipe mounting bracket according to claim 1, characterized in that: Two vertical rods (2) are provided, which are respectively fixedly connected to two sides of the bottom of the fixing plate (1).

9. The automobile exhaust pipe mounting bracket according to claim 1, characterized in that: A guide rod (11) is fixedly connected to the bracket (6), and the guide rod (11) is slidably connected to the lower clamping plate (4).

10. The automobile exhaust pipe mounting bracket according to claim 1, characterized in that: The two ends of the buffer spring (8) are respectively fixedly connected to the vertical rod (2) and the bracket (6).

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