A vibration-damping automobile exhaust emission pipeline installation assembly

Abstract

The present invention discloses a vibration-damping automobile exhaust pipe mounting assembly, comprising an exhaust pipe, a first fixing frame, a second fixing frame, a fixing bracket, an elastic vibration-damping mechanism, and a flowmeter. The first fixing frame and the second fixing frame form a first fixing space for fixing the automobile bumper; the fixing bracket is fixed to the first fixing frame, and the fixing bracket and the second fixing frame form a second fixing space, in which the flowmeter is mounted; the elastic vibration-damping mechanism is provided on the fixing bracket for adjusting the size of the second fixing space for fixing the flowmeter, and the exhaust pipe is connected to the flowmeter. In the proposed vibration-damping automobile exhaust pipe mounting assembly, the elastic vibration-damping mechanism elastically fixes the flowmeter in the second fixing space, and when the automobile vibrates, the elastic vibration-damping mechanism deforms accordingly to reduce the vibration of the flowmeter, thereby increasing its measurement accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile tail gas emission equipment, in particular to a vibration-damping automobile tail gas emission pipeline installation component. Background Art

[0002] As living standards improve, cars are becoming increasingly popular as a means of transportation, with family cars, trucks, and buses zipping down the roads. The exhaust gases produced by gasoline combustion in cars are discharged through their exhaust pipes. With increasing awareness of the natural environment, vehicle exhaust emissions have become a growing concern. The gas flowmeter in on-board emission testing equipment needs to be connected to the vehicle's exhaust pipe and mounted on the vehicle's exterior.

[0003] A Chinese patent with the authorization publication number CN208291105U, the authorization announcement date 2018.12.28, and the name "A fixing device for a gas flow meter" discloses a fixing device for a fixed flow meter. The disadvantage of this device is that the fixing device and the flow meter are fixed directly to the fixing frame. When the car vibrates, the flow meter vibrates accordingly, which causes the internal components of the flow meter to vibrate and thus loosen the internal assembly of the flow meter, resulting in reduced measurement accuracy and gradually increased measurement errors. Summary of the Invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes a vibration-damping automobile exhaust emission pipeline installation assembly.

[0005] The present invention proposes a vibration-damping automobile exhaust pipe installation assembly, comprising a first fixing frame, a second fixing frame, a fixing bracket, an elastic vibration-damping mechanism, an exhaust pipe, and a flow meter, wherein:

[0006] The first fixing frame and the second fixing frame form a first fixing space, and the first fixing space is used to fix the bumper of the car;

[0007] The fixing bracket is fixed on the first fixing frame, the fixing bracket and the second fixing frame form a second fixing space, the flow meter is installed in the second fixing space, the elastic vibration damping mechanism is arranged on the fixing bracket for adjusting the size of the second fixing space for fixing the flow meter, and the exhaust pipe is connected to the flow meter.

[0008] As a further optimized solution of the present invention, the fixing frame includes two fixing plates and two supporting plates. The two fixing plates are vertically mounted opposite to each other on the first fixing frame, and the two supporting plates are horizontally mounted opposite to each other between the two fixing plates.

[0009] As a further optimized solution of the present invention, the elastic vibration damping mechanism includes a first elastic vibration damping member and a second elastic vibration damping member, which are respectively installed on the fixed plate and the support plate and are respectively used to adjust the horizontal size and vertical size of the second fixed space.

[0010] As a further optimized solution of the present invention, the first elastic vibration damper and the second elastic vibration damper each include a rotating shaft, an elastic member, a supporting sliding plate and a rotating sliding plate, wherein:

[0011] The supporting sliding plate and the rotating sliding plate are both slidably mounted on the supporting plate or the fixed plate, the rotating sliding plate is fixed on the rotating shaft, the rotating shaft is rotatably mounted on the supporting sliding plate, the supporting sliding plate and the rotating sliding plate move in opposite directions relative to the supporting plate or the fixed plate, the elastic member is fixed between the supporting sliding plate and the rotating sliding plate, and the highest point of the supporting sliding plate has a supporting plane for supporting the flow meter.

[0012] As a further optimized solution of the present invention, the elastic member is a spring.

[0013] As a further optimized solution of the present invention, it further includes a transmission mechanism, which is installed between the rotating shaft of the first elastic vibration damping member and the rotating shaft of the second elastic vibration damping member and is used to drive the two rotating shafts to move in conjunction.

[0014] As a further optimization scheme of the present invention, when one rotating shaft rotates to expand the second fixed space horizontally, the transmission mechanism drives the other rotating shaft to rotate to reduce the second fixed space vertically; when one rotating shaft rotates to expand the second fixed space vertically, the transmission mechanism drives the other rotating shaft to rotate to reduce the second fixed space laterally.

[0015] As a further optimized solution of the present invention, the transmission mechanism is a belt transmission mechanism.

[0016] As a further optimized solution of the present invention, the support plate is slidably mounted on the fixed plate. The support plate can slide up and down relative to the fixed plate. The support plate and the fixed plate are fixed by fixing members.

[0017] In the present invention, the proposed vibration-damping automobile exhaust emission pipe installation assembly has an elastic vibration-damping mechanism that elastically fixes the flow meter in the second fixed space. When the automobile vibrates, the elastic vibration-damping mechanism undergoes corresponding deformation to slow down the vibration of the flow meter, thereby reducing the looseness of the internal assembly of the flow meter and increasing its measurement accuracy.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a structural diagram of the present invention after the flow meter is removed. DETAILED DESCRIPTION

[0021] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention, and are not to be construed as limiting the present invention.

[0022] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0025] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0026] like Figure 1-2 The vibration-damping automobile exhaust pipe installation assembly shown includes a first fixing frame 1, a second fixing frame 2, a fixing bracket 3, an elastic vibration-damping mechanism, an exhaust pipe 15, and a flow meter 4, wherein:

[0027] The first fixing frame 1 and the second fixing frame 2 form a first fixing space 6, and the first fixing space 6 is used to fix the bumper 5 of the car;

[0028] The fixing frame 3 includes two fixing plates 30 and two support plates 31. The two fixing plates 30 are mounted vertically opposite each other on the first fixing frame 1, and the two support plates 31 are mounted laterally opposite each other between the two fixing plates 30. The fixing frame 3 and the second fixing frame 2 form a second fixing space 7. The flowmeter 4 is mounted in the second fixing space 7. An elastic vibration damping mechanism is provided on the fixing frame 3 for adjusting the size of the second fixing space 7 for fixing the flowmeter. The exhaust pipe 15 is connected to the flowmeter 4.

[0029] The elastic vibration damping mechanism includes a first elastic vibration damping member 8 and a second elastic vibration damping member 9, which are respectively mounted on the fixing plate 30 and the supporting plate 31 and are respectively used to adjust the horizontal size and the vertical size of the second fixed space 7;

[0030] The first elastic vibration damping member 8 and the second elastic vibration damping member 9 each include a rotating shaft 10, an elastic member 11, a supporting sliding plate 12 and a rotating sliding plate 13, wherein:

[0031] The supporting sliding plate 12 and the rotating sliding plate 13 are both slidably mounted on the supporting plate 31 or the fixed plate 30, the rotating sliding plate 13 is fixed on the rotating shaft 10, and the rotating shaft 10 is rotatably mounted on the supporting sliding plate 12. The supporting sliding plate 12 and the rotating sliding plate 13 move in opposite directions relative to the supporting plate 31 or the fixed plate 30. The elastic member 11 is a spring, and the spring 11 is fixed between the supporting sliding plate 12 and the rotating sliding plate 13. The highest point of the supporting sliding plate 12 has a supporting plane for supporting the flow meter 4. The supporting sliding plate 12 presses against the flow meter to prevent the flow meter 4 from leaving the second fixed space 7;

[0032] It also includes a belt transmission mechanism, which is installed between the rotating shaft 10 of the first elastic vibration damper 8 and the rotating shaft 10 of the second elastic vibration damper and is used to drive the two rotating shafts 10 to work in a linked manner. The belt transmission mechanism includes a transmission belt 16, a first pulley 17 and a second pulley 18. The first pulley 17 and the second pulley are respectively fixed on the two rotating shafts 10. The transmission belt 16 is sleeved on the first pulley 17 and the second pulley 18. When one rotating shaft 10 rotates and the second fixed space 7 becomes larger in the horizontal direction, the belt transmission mechanism drives the other rotating shaft 10 to rotate so that the second fixed space 7 becomes smaller in the vertical direction; when one rotating shaft 10 rotates and the second fixed space 7 becomes larger in the vertical direction, the transmission mechanism drives the other rotating shaft 10 to rotate so that the second fixed space 7 becomes smaller in the horizontal direction;

[0033] The support plate 31 is slidably installed on the fixed plate 30. The support plate 31 can slide up and down relative to the fixed plate 30. The support plate 31 and the fixed plate 30 are fixed by a fixing member 14. A plurality of mounting holes 300 are opened on the fixed plate 30. The fixing member 14 fixes the fixed plate 30 and the support plate 31 through the mounting holes 300. The fixing member 14 can be a screw.

[0034] During operation of this embodiment, when the car vibrates and the flowmeter squeezes the supporting sliding plate 12, the rotating sliding plate 13 rotates relative to the supporting sliding plate 12, and the rotating sliding plate 13 and the supporting sliding plate 12 move in opposite directions. The elastic member 11 is stretched, which has a vibration-damping effect on the flowmeter 4, thereby reducing the influence of the car vibration on the accuracy of the flowmeter 4; when the flowmeter 4 moves downward with the vibration, the flowmeter 4 squeezes the second elastic vibration damper 9 slidably mounted on the support plate 31, causing the rotating sliding plate 13 and the supporting sliding plate 12 of the second elastic vibration damper 9 to move away from each other, forming a gap between the flowmeter and the top of the second fixed space 7. At the same time, in this process, the rotating shaft 10 of the second elastic vibration damper 9 drives the rotating shaft 10 of the first elastic vibration damper 8 to rotate, causing the rotating sliding plate 13 and the supporting sliding plate 12 of the first elastic vibration damper 8 to move closer to each other, making the highest surface of the supporting sliding plate 12 of the first elastic vibration damper 8 The lateral squeezing force on the flowmeter 4 is greater, thereby preventing the flowmeter 4 from leaving the second fixed space 7.

[0035] In this embodiment, preferably, the fixing frame 3 includes two fixing plates 30 and two support plates 31. The two fixing plates 30 are vertically mounted on the first fixing frame 1 relative to each other, and the two support plates 31 are horizontally mounted between the two fixing plates 30 relative to each other, which facilitates the installation of the flow meter 4.

[0036] In this embodiment, the elastic vibration damping mechanism preferably includes a first elastic vibration damper 8 and a second elastic vibration damper 9. The first elastic vibration damper 8 and the second elastic vibration damper 9 are respectively installed on the fixing plate 30 and the support plate 31 and are respectively used to adjust the lateral size and vertical size of the second fixed space 7. When the car vibrates laterally or vertically, the first elastic vibration damper 8 and the second elastic vibration damper 9 undergo corresponding deformation to reduce the impact of the vibration on the accuracy of the flow meter and ensure that the flow meter 4 does not leave the second fixed space 7.

[0037] In this embodiment, preferably, the first elastic vibration damper 8 and the second elastic vibration damper 9 each include a rotating shaft 10, an elastic member 11, a supporting sliding plate 12 and a rotating sliding plate 13, wherein:

[0038] The supporting sliding plate 12 and the rotating sliding plate 13 are both slidably mounted on the supporting plate 31 or the fixed plate 30. The rotating sliding plate 13 is fixed on the rotating shaft 10. The rotating shaft 10 is rotatably mounted on the supporting sliding plate 12. The supporting sliding plate 12 and the rotating sliding plate 13 move in opposite directions relative to the supporting plate 31 or the fixed plate 30. The elastic member 11 is fixed between the supporting sliding plate 12 and the rotating sliding plate 13. The highest point of the supporting sliding plate 12 has a supporting plane for supporting the flowmeter 4. When the car vibrates and the flowmeter squeezes the supporting sliding plate 12, the rotating sliding plate 13 rotates relative to the supporting sliding plate 12. The rotating sliding plate 13 and the supporting sliding plate 12 move in opposite directions. The elastic member 11 is stretched, which has a vibration-reducing effect on the flowmeter 4.

[0039] The elastic member 11 is used to ensure that the supporting sliding plate 12 and the rotating sliding plate 13 move relative to the fixed plate 30 or the supporting plate 31 only when the squeezing force between the supporting sliding plate 12 and the rotating sliding plate 13 is large enough. In this embodiment, the elastic member 11 is a spring.

[0040] In this embodiment, it is preferred that a transmission mechanism is further included, which is installed between the rotating shaft 10 of the first elastic vibration damper 8 and the rotating shaft 10 of the second elastic vibration damper and is used to drive the two rotating shafts 10 to be linked. When the flow meter 4 vibrates in the car, the first elastic vibration damper 8 and the second elastic vibration damper 9 are adjusted to prevent the flow meter 4 from detaching from the second fixed space 7 during vibration.

[0041] In this embodiment, preferably, when one rotating shaft 10 rotates and the second fixed space 7 becomes larger horizontally, the transmission mechanism drives the other rotating shaft 10 to rotate to reduce the second fixed space 7 vertically; when one rotating shaft 10 rotates to increase the second fixed space 7 vertically, the transmission mechanism drives the other rotating shaft 10 to rotate to reduce the second fixed space 7 laterally, that is, when the car vibrates, the flowmeter 4 moves downward with the vibration, and the flowmeter 4 squeezes the second elastic vibration damper 9 slidably installed with the support plate 31, so that the rotating sliding plate 13 and the supporting sliding plate 12 of the second elastic vibration damper 9 move away from each other, and a gap is formed between the flowmeter and the top of the second fixed space 7. At the same time, the rotating shaft 10 of the second elastic vibration damper 9 drives the rotating shaft 10 of the first elastic vibration damper 8 to rotate, so that the rotating sliding plate 13 and the supporting sliding plate 12 of the first elastic vibration damper 8 move closer to each other, so that the highest surface of the supporting sliding plate 12 of the first elastic vibration damper 8 exerts a greater lateral extrusion force on the flowmeter 4, thereby preventing the flowmeter 4 from leaving the second fixed space 7.

[0042] In this embodiment, the transmission mechanism is preferably a mechanism that drives the two rotating shafts to be linked. The transmission mechanism in this embodiment is a belt transmission mechanism, preferably a toothed conveyor belt and pulley, which is easy to install and has high transmission accuracy.

[0043] In this embodiment, the support plate 31 is preferably slidably mounted on the fixed plate 30, and the support plate 31 can slide up and down relative to the fixed plate 30. The support plate 31 and the fixed plate 30 are fixed by a fixing member 14, and the size of the second fixed space 7 can be adjusted according to the flow meter 4 of different sizes.

[0044] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A vibration-damping automobile exhaust pipe installation assembly, characterized in that: It comprises a first fixing frame (1), a second fixing frame (2), a fixing frame (3), an elastic vibration damping mechanism, an exhaust pipe (15) and a flow meter (4), wherein: The first fixing frame (1) and the second fixing frame (2) form a first fixing space (6), and the first fixing space (6) is used to fix the bumper (5) of the car; The fixing frame (3) is fixed on the first fixing frame (1), the fixing frame (3) and the second fixing frame (2) form a second fixing space (7), the flow meter (4) is installed in the second fixing space (7), an elastic vibration damping mechanism is provided on the fixing frame (3) for adjusting the size of the second fixing space (7) for fixing the flow meter (4), and the tail pipe (15) is in communication with the flow meter (4); The fixing frame (3) includes two fixing plates (30) and two supporting plates (31), the two fixing plates (30) are vertically mounted on the first fixing frame (1) in a relative manner, and the two supporting plates (31) are horizontally mounted between the two fixing plates (30); The elastic vibration damping mechanism comprises a first elastic vibration damping member (8) and a second elastic vibration damping member (9), wherein the first elastic vibration damping member (8) and the second elastic vibration damping member (9) are respectively mounted on the fixing plate (30) and the supporting plate (31) and are respectively used for adjusting the horizontal size and the vertical size of the second fixed space (7); The first elastic vibration damping member (8) and the second elastic vibration damping member (9) both comprise a rotating shaft (10), an elastic member (11), a supporting sliding plate (12) and a rotating sliding plate (13), wherein: The supporting sliding plate (12) and the rotating sliding plate (13) are both slidably mounted on the supporting plate (31) or the fixed plate (30), the rotating sliding plate (13) is fixed on the rotating shaft (10), the rotating shaft (10) is rotatably mounted on the supporting sliding plate (12), the supporting sliding plate (12) and the rotating sliding plate (13) move in opposite directions relative to the supporting plate (31) or the fixed plate (30), the elastic member (11) is fixed between the supporting sliding plate (12) and the rotating sliding plate (13), and the highest point of the supporting sliding plate (12) has a supporting plane for supporting the flow meter (4); The device also includes a transmission mechanism, which is installed between the rotating shaft (10) of the first elastic vibration damping member (8) and the rotating shaft (10) of the second elastic vibration damping member (9) and is used to drive the two rotating shafts (10) to move in a coordinated manner; When one rotating shaft (10) rotates to enlarge the second fixed space (7) in the horizontal direction, the transmission mechanism drives the other rotating shaft (10) to rotate to reduce the second fixed space (7) in the vertical direction; when one rotating shaft (10) rotates to enlarge the second fixed space (7) in the vertical direction, the transmission mechanism drives the other rotating shaft (10) to rotate to reduce the second fixed space (7) in the horizontal direction.

2. The vibration-damping automobile exhaust pipe installation assembly according to claim 1, characterized in that: The elastic member (11) is a spring.

3. The vibration-damping automobile exhaust pipe installation assembly according to claim 1, characterized in that: The transmission mechanism is a belt transmission mechanism.

4. The vibration-damping automobile exhaust pipe installation assembly according to any one of claims 2 to 3, characterized in that: The support plate (31) is slidably mounted on the fixed plate (30). The support plate (31) can slide up and down relative to the fixed plate (30). The support plate (31) and the fixed plate (30) are fixed by a fixing member (14).

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