Noise reduction automobile vacuum pump

Abstract

The utility model belongs to the technical field of vacuum pumps, and particularly relates to a noise reduction automobile vacuum pump which comprises a pump body, an air inlet pipe and an air outlet pipe are arranged on the pump body, a rotating block is arranged in the pump body in a rotating mode, a groove is formed in the rotating block, a rotating rod is arranged on the rotating block in a rotating mode, a partition plate is fixedly arranged on the rotating rod, and the partition plate is fixedly connected with the pump body. A sliding groove is formed in the partition plate, a limiting plate is fixedly arranged in the sliding groove, a sliding block is arranged in the sliding groove in a sliding mode, a spring is fixedly arranged at the bottom of the sliding block, and a sealing sleeve is fixedly arranged on the outer surface of the partition plate. A positioning groove in the inner wall of the inner cavity of the vacuum pump is removed, the sliding grooves are formed in the partition plates, when the partition plates rotate, the function of space division is achieved through the cooperation of stretching and retracting of the internal springs and sliding of the sliding blocks, the sliding blocks are prevented from sliding out through the limiting plates, and the purpose of positioning the partition plates is achieved; the partition plate does not need to enter and exit from the groove when rotating, so that large noise cannot be generated, and the purpose of reducing the noise is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a noise-reducing automobile vacuum pump. Background Art

[0002] As people's quality of life continues to improve, cars have become one of the necessary means of transportation for everyone, and the development of the automobile manufacturing industry has gradually grown. The noise reduction automobile vacuum pump is an important component in the automobile braking and steering system. Through its function of generating negative pressure, it provides the necessary assistance for the braking and steering of the car.

[0003] However, most existing vacuum pumps have grooves on their inner walls to achieve positioning functions. When the partition plate rotates, it will divide the interior of the vacuum pump into spaces of different sizes when entering the groove, and complete the space transformation when leaving the groove. This will cause the partition plate to generate noise when rotating, which will not only interfere with the driving environment, but may also have a negative impact on the comfort of the driver and passengers. Therefore, it is necessary to provide an operating structure to reduce the noise generated when the partition plate rotates.

[0004] In order to solve the above problems, the present application proposes a noise-reducing automobile vacuum pump. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a noise reduction automobile vacuum pump, including a pump body, on which an air inlet pipe and an air outlet pipe are fixedly provided, a rotating block is rotatably provided inside the pump body, a groove is provided on the rotating block, a rotating rod is rotatably provided on the rotating block, a partition plate is fixedly provided on the rotating rod, a slide groove is provided on the partition plate, a limit plate is fixedly provided on one side of the slide groove opening, a sliding block is slidably provided in the slide groove, a spring is fixedly provided at the bottom of the sliding block, and a sealing sleeve is fixedly provided on the outer surface of the partition plate.

[0006] Preferably, the partition plate, the slide groove, the slider and the sealing sleeve are all arc-shaped, and the width of the slider is equal to the width of the slide groove.

[0007] Preferably, the sealing sleeve fits tightly against the inner wall of the pump body.

[0008] Preferably, one end of the spring is fixedly connected to the bottom of the slider, and the other end of the spring is fixedly connected in the groove, and the length of the spring in a compressed state is smaller than the depth of the groove.

[0009] Preferably, the height of the rotating block is equal to the depth of the inner cavity of the pump body, the height of the partition plate is equal to the height of the rotating block, and the height of the sealing sleeve is equal to the height of the partition plate.

[0010] Preferably, the rotating block is in the shape of an equilateral triangle, the grooves are provided on three side surfaces of the rotating block, and the rotating rod and the partition plate are rotatably connected to three end points of the rotating block.

[0011] The above technical solution of the utility model has the following beneficial technical effects:

[0012] The utility model removes the positioning groove on the inner wall of the inner cavity of the vacuum pump and opens a sliding groove in the partition plate. When the partition plate rotates, the expansion and contraction of the internal spring and the sliding of the slider are coordinated to achieve the function of separating the space, and then the limit plate is used to prevent the slider from sliding out, so as to achieve the purpose of positioning the partition plate. When the partition plate rotates, it is no longer necessary for the partition plate to enter and exit the groove, so that it will not collide with the inner wall of the pump body, and thus will not generate a large noise, thereby achieving the purpose of reducing noise, improving the comfort of the driver and passengers, and ensuring the life safety of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the partial decomposition structure of the utility model.

[0016] Reference numerals:

[0017] 1. Pump body; 101. Air inlet pipe; 102. Air outlet pipe; 2. Rotating block; 201. Groove; 3. Rotating rod; 4. Partition plate; 401. Slide groove; 402. Limiting plate; 5. Sliding block; 6. Spring; 7. Sealing sleeve. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0019] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0020] A noise-reducing automobile vacuum pump provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings. Embodiment 1

[0021] Combination Figure 1-3As shown, the utility model provides a noise reduction automobile vacuum pump, including a pump body 1, on which an air inlet pipe 101 and an air outlet pipe 102 are fixedly provided, a rotating block 2 is rotatably provided inside the pump body 1, a groove 201 is provided on the rotating block 2, a rotating rod 3 is rotatably provided on the rotating block 2, a partition plate 4 is fixedly provided on the rotating rod 3, a slide groove 401 is provided on the partition plate 4, a stop plate 402 is fixedly provided on one side of the opening of the slide groove 401, a slider 5 is slidably provided in the slide groove 401, a spring 6 is fixedly provided at the bottom of the slider 5, a sealing sleeve 7 is fixedly provided on the outer surface of the partition plate 4, and the partition plate 4, the slide groove 401, the slider 5 and the sealing sleeve 7 are shaped The shapes are all arc-shaped, the width of the slider 5 is equal to the width of the slide groove 401, the sealing sleeve 7 is tightly fitted to the inner wall of the pump body 1, one end of the spring 6 is fixedly connected to the bottom of the slider 5, and the other end of the spring 6 is fixedly connected in the groove 201. The length of the spring 6 in the compressed state is less than the depth of the groove 201, the height of the rotating block 2 is equal to the depth of the inner cavity of the pump body 1, the height of the partition plate 4 is equal to the height of the rotating block 2, the height of the sealing sleeve 7 is equal to the height of the partition plate 4, the shape of the rotating block 2 is an equilateral triangle, the groove 201 is opened on the three sides of the rotating block 2, and the rotating rod 3 and the partition plate 4 are rotatably connected to the three end points of the rotating block 2.

[0022] Specifically, the pump body 1 is fixedly provided with an air inlet pipe 101 and an air outlet pipe 102 which penetrate into the inner cavity, so that air can flow in the inner cavity of the pump body 1, thereby driving the rotating block 2 to rotate. Grooves 201 are provided on the three sides of the rotating block 2. The rotating rod 3 is rotatably connected to the three end points of the rotating block 2. The partition plate 4 is fixedly connected to the rotating rod 3, so that the rotating rod 3 can drive the partition plate 4 to rotate when rotating. The outer surface of the partition plate 4 is fixedly connected with a sealing sleeve 7, and the sealing sleeve 7 is tightly fitted to the inner wall of the pump body 1 to make the sealing sleeve 7 close to the inner wall of the pump body 1. The connection between the sleeve 7 and the pump body 1 is sealed, a slide groove 401 is provided on the partition plate 4, an arc-shaped slider 5 is slidably connected in the slide groove 401, a spring 6 is fixedly welded at the bottom of the slider 5, and the other end of the spring 6 is fixedly welded in the groove 201, so that when the rotating block 2 rotates, the partition plate 4 will rotate along with the rotation of the rotating rod 3, and when the partition plate 4 rotates, the slider 5 inside will slide along the slide groove 401, thereby squeezing the spring 6, so that the distance between the partition plate 4 and the rotating block 2 becomes smaller, while the other partition plates 4 are The spring 6 will move away from the rotating block 2. Due to the elastic potential energy of the spring 6, the spring 6 will squeeze the partition plate 4 and the sealing sleeve 7 toward the inner wall of the pump body 1, so that the sealing sleeve 7 and the inner wall of the pump body 1 are closely fitted. At the same time, as each partition plate 4 rotates, the left and right spaces of the inner cavity of the pump body 1 will change accordingly, thereby achieving the effect of changing the size of the space. A limiting plate 402 is fixedly welded on one side of the opening of the slide groove 401, so that the slider 5 will be blocked by the limiting plate 402 when it moves to a certain position, preventing the slider 5 from sliding out of the slide groove 401. When the partition plate 4 continues to rotate , the slider 5 will move away from the limit plate 402, and the spring 6 will be slowly squeezed into the groove 201, so that the lower surface of the partition plate 4 and the side of the rotating block 2 can fit together, so that the partition plate 4 will not block the rotation of the rotating block 2, and the outer surface of the partition plate 4 is slidably connected to the inner wall of the pump body 1 through the wrapped sealing sleeve 7, and the rotation and positioning of the partition plate 4 are realized by the limit plate 402, the slider 5 and the spring 6 in the slide groove 401, avoiding the partition plate 4 from colliding with the inner wall of the pump body 1 when rotating, thereby reducing the noise generated during the operation of the vacuum pump.

[0023] The working principle and use process of the utility model are as follows: first, an air inlet pipe 101 is provided to convey gas to the inner cavity of the pump body 1, so that the pressure on the left side of the inner cavity of the pump body 1 increases, thereby squeezing the rotating block 2 to one side, causing the rotating block 2 to start rotating. As the rotating block 2 rotates, the rotating rod 3 and the partition plate 4 connected by three end points will also start rotating, and the slider 5 in the slide groove 401 will start sliding, so that the spring 6 starts to expand and contract. Due to the elastic potential energy of the spring 6, the sealing sleeve 7 on the outer surface of the partition plate 4 will always fit tightly with the inner wall of the pump body 1, thereby preventing air leakage. When the air inlet pipe 101 no longer conveys air, the air will reach one side of the air outlet pipe 102 as the partition plate 4 rotates, and then be discharged by the air outlet pipe 102, so that the inner cavity of the pump body 1 reaches a vacuum state again. During the whole process, the partition plate 4 and the pump body 1 will not collide, thereby reducing the noise during the operation of the pump body 1 and improving the comfort of the driver and passengers.

[0024] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A noise-reducing automobile vacuum pump, comprising a pump body (1), characterized in that: An air inlet pipe (101) and an air outlet pipe (102) are fixedly provided on the pump body (1); a rotating block (2) is rotatably provided inside the pump body (1); a groove (201) is provided on the rotating block (2); a rotating rod (3) is rotatably provided on the rotating block (2); a partition plate (4) is fixedly provided on the rotating rod (3); a slide groove (401) is provided on the partition plate (4); a limit plate (402) is fixedly provided on one side of the opening of the slide groove (401); a sliding block (5) is slidably provided in the slide groove (401); a spring (6) is fixedly provided at the bottom of the sliding block (5); and a sealing sleeve (7) is fixedly provided on the outer surface of the partition plate (4).

2. A noise reduction automobile vacuum pump according to claim 1, characterized in that: The partition plate (4), the slide groove (401), the slider (5) and the sealing sleeve (7) are all arc-shaped, and the width of the slider (5) is equal to the width of the slide groove (401).

3. A noise reduction automobile vacuum pump according to claim 1, characterized in that: The sealing sleeve (7) and the inner wall of the pump body (1) are tightly fitted.

4. A noise reduction automobile vacuum pump according to claim 1, characterized in that: One end of the spring (6) is fixedly connected to the bottom of the slider (5), and the other end of the spring (6) is fixedly connected in the groove (201); the length of the spring (6) in a compressed state is less than the depth of the groove (201).

5. A noise reduction automobile vacuum pump according to claim 1, characterized in that: The height of the rotating block (2) is equal to the depth of the inner cavity of the pump body (1), the height of the partition plate (4) is equal to the height of the rotating block (2), and the height of the sealing sleeve (7) is equal to the height of the partition plate (4).

6. A noise reduction automobile vacuum pump according to claim 1, characterized in that: The shape of the rotating block (2) is an equilateral triangle, the grooves (201) are provided on three side surfaces of the rotating block (2), and the rotating rod (3) and the partition plate (4) are rotatably connected to the three end points of the rotating block (2).

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