Automobile exhaust pipe rubber lifting lug

Abstract

The utility model discloses a rubber lifting lug of an automobile exhaust pipe, relates to the technical field of lifting lugs of exhaust pipes, and aims to solve the problem that the two sides of the lifting lug are torn and damaged due to long-term bucket shaking caused by the structural reason of the lifting lug in the prior art. A rectangular through hole is formed in the lifting lug body, an upper buffer block is fixed to the top face of the inner wall of the rectangular through hole, a lower buffer block is fixed to the bottom face of the inner wall of the rectangular through hole, and mounting through holes are further formed in the positions, on the upper side and the lower side of the rectangular through hole, of the lifting lug body. The guide column penetrates into the cavity in a sliding mode and is fixedly provided with a sliding block. Negative pressure is formed through the cavity of the sliding block due to rapid rising of the sliding block, so that the sliding block is subjected to adsorption force of the negative pressure, and pulling of the exhaust pipe to the lifting lug main body due to rapid falling is slowed down.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust pipe hanging ears, in particular to a rubber hanging ear for an automobile exhaust pipe. Background Art

[0002] The automobile exhaust system is mainly used to discharge the exhaust gas emitted by the engine, and the exhaust pipe will inevitably be connected to the engine while discharging the exhaust gas. Therefore, the vibration of the engine when it is working will be transmitted to the exhaust pipe, and the exhaust pipe will also vibrate violently when the car is driving. In order to prevent the exhaust pipe from being damaged and causing the car body to vibrate, an exhaust pipe hanger is usually set under the car to buffer the vibration of the engine on the exhaust pipe.

[0003] The hanging ear in the prior art prevents the engine from driving the exhaust pipe to vibrate, so the middle part of the hanging ear is hollowed out. Such a structure can well absorb the vibration transmitted to the exhaust pipe when the engine or the car is running. However, this arrangement will result in the hanging ear structure being weak in strength. The two sides of the hanging ear are easily torn due to long-term vibration, resulting in a short service life. The hanging ear is also easy to fall off, causing abnormal noise or even damage to the exhaust pipe.

[0004] Therefore, a rubber lifting lug for automobile exhaust pipe is needed to solve the problem in the prior art that the lifting lug is torn and damaged due to long-term bucket shaking on both sides of the lifting lug due to structural reasons. Utility Model Content

[0005] In order to solve the above technical problems, a rubber lifting ear for automobile exhaust pipe is provided, which solves the problem in the prior art that the lifting ear is torn and damaged due to long-term shaking on both sides of the lifting ear due to structural reasons.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a rubber hanging ear for automobile exhaust pipe, including a hanging ear body, a rectangular through hole is opened in the middle of the hanging ear body, an upper buffer block is fixed on the top surface of the inner wall of the rectangular through hole, a lower buffer block is fixed on the bottom surface of the inner wall of the rectangular through hole, and mounting through holes are also opened on the hanging ear body on the upper and lower sides of the rectangular through hole, characterized in that: a connecting block is fixed on the bottom surface of the upper buffer block, a guide column is fixed on the side of the connecting block facing the lower buffer block, a cavity is set in the lower buffer block, the guide column slides into the cavity and is fixed with a sliding block.

[0007] Preferably, the side wall of the sliding block is slidably connected to the inner wall of the cavity.

[0008] Preferably, the connecting block is in a frustum shape, the top surface of the lower buffer block is provided with a concave surface that matches the connecting block, the cavity is located below the concave surface, and the guide column is provided above the concave surface.

[0009] Preferably, air ports are provided at the bottoms of both sides of the lower buffer block, and the air ports are connected to the cavity of the lower buffer block.

[0010] Compared with the prior art, the advantages of the utility model are:

[0011] (1) Through the arrangement of the connecting block, the guide column, the sliding block and the cavity, the connecting block drives the sliding block to rise in the cavity by pulling the guide column. During this process, the cavity of the sliding block forms a negative pressure due to the rapid rise of the sliding block, causing the sliding block to be subjected to the adsorption force of the negative pressure, thereby slowing down the pulling of the exhaust pipe on the main body of the lifting ear due to the rapid descent. After the sliding block moves to the top surface of the inner wall of the cavity and abuts against it, the sliding block can be pulled by the connecting block to share the pulling force on the exhaust pipe for both sides of the lifting ear body. In this way, the problem of tearing damage on both sides of the lifting ear due to long-term shaking of the lifting ear caused by structural reasons in the prior art can be solved.

[0012] (2) By setting the concave surface of the lower buffer block and the connecting block, after the sliding block breaks off from the guide post and falls off, during the collision between the lower buffer block and the connecting block, even if the guide post is separated from the cavity of the lower buffer block, the concave surface of the lower buffer block can re-introduce the guide post into the cavity of the lower buffer block. By utilizing the fit between the concave surface of the lower buffer block and the surface of the connecting block, the collision and dislocation of the lower buffer block and the connecting block caused by the guide post can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A structural stereogram provided for the utility model;

[0014] Figure 2 The front view of the structure provided by the utility model;

[0015] Figure 3 It is a structural sectional view of the utility model.

[0016] The numbers in the figure are:

[0017] 1. Lifting ear body; 2. Guide column; 3. Sliding block; 4. Air port; 5. Upper buffer block; 6. Lower buffer block; 7. Connecting block. DETAILED DESCRIPTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0019] Reference Figure 1 , Figure 2 and Figure 3As shown, a rubber hanging ear for automobile exhaust pipe comprises a hanging ear body 1, a rectangular through hole is opened in the middle of the hanging ear body 1, an upper buffer block 5 is fixed to the top surface of the inner wall of the rectangular through hole, a lower buffer block 6 is fixed to the bottom surface of the inner wall of the rectangular through hole, and mounting through holes are also opened on the hanging ear body 1 at the upper and lower sides of the rectangular through hole;

[0020] Through the arrangement of the lifting ear body 1, the upper buffer block 5 and the lower buffer block 6, when installing the lifting ear, the lifting ear body 1 is installed on the automobile chassis bracket by passing a bolt through one of the installation through holes, and then the lifting ear body 1 is installed on the exhaust pipe by passing another bolt through the other installation through hole. When the exhaust pipe shakes during the driving of the automobile, the exhaust pipe falls due to gravity and inertia and pulls the installation through the lower part of the lifting ear body 1, thereby driving the lower buffer block 6 to fall synchronously. In this process, the two sides of the lifting ear body 1 are used to pull the lower installation through hole. When the exhaust pipe rises due to shaking, the lifting ear body 1 is compressed by force, and the two sides are compressed synchronously. Then, the upper buffer block 5 and the lower buffer block 6 in the rectangular through hole move relative to each other until they contact and resist each other. The contact and resistance between the upper buffer block 5 and the lower buffer block 6 can gradually buffer the shaking of the exhaust pipe.

[0021] However, in practice, the lifting ears in the prior art have the problem of tearing and damage on both sides of the lifting ears due to long-term bucket shaking due to structural reasons.

[0022] To solve the above problems, refer to Figures 1 to 3 As shown, it is worth noting that a connecting block 7 is fixed to the bottom surface of the upper buffer block 5, a guide column 2 is fixed to the side of the connecting block 7 facing the lower buffer block 6, a cavity is provided in the lower buffer block 6, the guide column 2 slides into the cavity and is fixed with a sliding block 3, and the side wall of the sliding block 3 is slidably connected with the inner wall of the cavity;

[0023] Air ports 4 are provided at the bottom of both sides of the lower buffer block 6, and the air ports 4 are connected to the cavity of the lower buffer block 6;

[0024] Through the arrangement of the connecting block 7, the guide column 2, the sliding block 3 and the cavity, when the exhaust pipe is in the rising stage of shaking due to the engine, the installation through hole below the lifting ear body 1 is pushed by the exhaust pipe, causing the lifting ear body 1 to be squeezed, and the lower buffer block 6 and the connecting block 7 make relative movement. The connecting block 7 drives the sliding block 3 to descend in the cavity by pushing the guide column 2. After the air in the cavity is squeezed by the sliding block 3, there is a reverse force on the sliding block 3, which then buffers part of the squeezing force of the lifting ear body 1 on the exhaust pipe. After the air in the cavity is discharged from the air port 4, the reverse force gradually disappears. When the exhaust pipe is in the descending stage of shaking due to the engine, the installation through hole below the lifting ear body 1 is pulled by the exhaust pipe. During the process, the lower buffer block 6 and the connecting block 7 move in opposite directions, and the connecting block 7 drives the sliding block 3 to rise in the cavity by pulling the guide column 2. In this process, the cavity of the sliding block 3 forms a negative pressure due to the rapid rise of the sliding block 3, causing the sliding block 3 to be subjected to the adsorption force of the negative pressure, thereby slowing down the exhaust pipe from pulling the ear body 1 due to the rapid descent, and can also slow down the rapid pulling of the two sides of the ear body 1. As the air flows into the cavity from the air port 4, the adsorption force gradually disappears. After the sliding block 3 moves to the top surface of the inner wall of the cavity and abuts against it, the sliding block 3 can be pulled by the connecting block 7 to share the pulling force on the exhaust pipe for the two sides of the ear body 1. In this way, the problem of tearing and damage on both sides of the ear due to long-term shaking of the ear due to structural reasons in the prior art can be solved.

[0025] In subsequent use, it was found that during long-term shaking, the sliding block 3 was torn off from the guide column 2 due to the tension and air adsorption force exerted on the sliding block 3. As the lifting ear body 1 continued to shake, the guide column 2 was separated from the cavity of the lower buffer block 6. During the collision between the connecting block 7 and the lower buffer block 6, the guide column 2 often pushed the lower buffer block 6 and the connecting block 7, causing the lower buffer block 6 and the connecting block 7 to be misaligned, and finally causing the two sides of the lifting ear body 1 to be affected by the misalignment of the lower buffer block 6 and the connecting block 7, resulting in the risk of tearing.

[0026] In view of this, refer to Figures 1 to 3 As shown, it is worth noting that the connecting block 7 is in a frustum shape, the top surface of the lower buffer block 6 is provided with a concave surface that matches the connecting block 7, the cavity is located below the concave surface, and the guide column 2 slides through the center of the concave surface.

[0027] By setting the concave surface of the lower buffer block 6 and the connecting block 7, after the sliding block 3 breaks and falls off the guide column 2, during the collision between the lower buffer block 6 and the connecting block 7, even if the guide column 2 breaks away from the cavity of the lower buffer block 6, the concave surface of the lower buffer block 6 can re-introduce the guide column 2 into the cavity of the lower buffer block 6. By utilizing the fit between the concave surface of the lower buffer block 6 and the surface of the connecting block 7, the collision and dislocation of the lower buffer block 6 and the connecting block 7 caused by the guide column 2 can be avoided.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A rubber hanging ear for an automobile exhaust pipe, comprising a hanging ear body (1), a rectangular through hole being provided in the middle of the hanging ear body (1), an upper buffer block (5) being fixed to the top surface of the inner wall of the rectangular through hole, a lower buffer block (6) being fixed to the bottom surface of the inner wall of the rectangular through hole, and mounting through holes being provided on the hanging ear body (1) at the upper and lower sides of the rectangular through hole, characterized in that: A connecting block (7) is fixed on the bottom surface of the upper buffer block (5), a guide column (2) is fixed on the side of the connecting block (7) facing the lower buffer block (6), a cavity is provided in the lower buffer block (6), the guide column (2) slides into the cavity and is fixed with a sliding block (3).

2. The automobile exhaust pipe rubber hanging ear according to claim 1, characterized in that: The side wall of the sliding block (3) is slidably connected to the inner wall of the cavity.

3. The automobile exhaust pipe rubber hanging ear according to claim 1, characterized in that: The connecting block (7) is in the shape of a truncated cone, the top surface of the lower buffer block (6) is provided with a concave surface that matches the connecting block (7), the cavity is located below the concave surface, and the guide column (2) is arranged above the concave surface.

4. The automobile exhaust pipe rubber hanging ear according to claim 1, characterized in that: Air ports (4) are provided at the bottoms of both sides of the lower buffer block (6), and the air ports (4) are connected to the cavity of the lower buffer block (6).

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