A novel vibration damping mechanism for automotive vacuum pumps

Abstract

This invention relates to a novel vibration damping mechanism for automotive vacuum pumps, belonging to the field of electric vacuum pump technology. It includes an upper rubber sleeve (9) and a lower rubber sleeve (10). The outer ring of the upper rubber sleeve (9) has an upper rubber sleeve groove (5). A lower screw (11) is fitted inside the lower end of the lower rubber sleeve (10). The lower screw thread (12) at the lower end of the lower screw (11) extends to the lower outer part of the lower rubber sleeve (10). An upper screw (7) is fitted inside the upper end of the lower rubber sleeve (10). The upper rubber sleeve (9) is fitted onto the upper screw (7). An anti-rotation part (13) is provided on the upper screw (7). The lower end of the upper rubber sleeve (9) abuts against the anti-rotation part (13). The upper screw thread (15) at the upper end of the upper screw (7) extends to the upper outer part of the upper rubber sleeve (9). The novel vibration damping mechanism for automotive vacuum pumps described in this invention has strong adaptability, high integration, simple structure, and good vibration damping effect.

Description

Technical Field

[0001] This invention belongs to the field of electric vacuum pump technology, and more specifically, relates to a novel vibration damping mechanism for automotive vacuum pumps. Background Technology

[0002] In the automotive technology field, some current gasoline and new energy vehicles use electric vacuum pumps as vacuum sources. Because vacuum pumps generate vibration during operation, and the vibration parameters of the same specification electric vacuum pump vary depending on different speeds, vacuum loads, and voltages, vibration damping mechanisms are needed to buffer the electric vacuum pump and improve the overall vehicle NVH level. Currently, to achieve vibration damping, the electric vacuum pump and its mounting bracket are placed on the powertrain (motor), and vibration damping is achieved through the powertrain (motor) mounting bracket. This method requires the powertrain (motor) to have built-in mounting threaded holes. Furthermore, limitations such as the ground clearance of the powertrain (motor) mounting point and the waterproof mounting height of the electric vacuum pump restrict the adaptability of this solution.

[0003] Existing technology includes a device entitled "An Electric Vacuum Pump Vibration Damping Mechanism" with publication number "CN215719326U". This device provides an electric vacuum pump vibration damping mechanism, comprising a mounting base plate, a fixed track, an adjusting track, moving blocks, damping spring dampers, a vacuum pump body, a first adjusting mechanism, and a second adjusting mechanism. The fixed track is fixed to one side of the top of the mounting base plate, and the adjusting track is slidably connected to the top of the mounting base plate away from the fixed track. Four moving blocks are symmetrically slidably connected to the outer walls of the fixed track and the adjusting track, respectively. The damping spring dampers are fixed to the top of the moving blocks. This invention can perform vibration damping for the vacuum pump and can adjust the position of the four damping spring dampers according to the position of the mounting holes on different vacuum pumps. This allows for vibration damping for various vacuum pumps, facilitating the replacement of vacuum pumps on the vehicle frame and ensuring that the frame strength is not damaged during vacuum pump replacement.

[0004] However, this technology does not address the technical issues and solutions of this application. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a new type of vibration damping mechanism for automotive vacuum pumps that is highly adaptable, highly integrated, simple in structure, and has good vibration damping effect, in order to address the shortcomings of the existing technology.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] This invention relates to a novel vibration damping mechanism for an automotive vacuum pump, comprising an upper rubber sleeve and a lower rubber sleeve. The outer ring of the upper rubber sleeve is provided with an upper rubber sleeve groove. A lower screw is fitted inside the lower end of the lower rubber sleeve. The threaded portion of the lower screw extends to the outer part of the lower rubber sleeve. An upper screw is fitted inside the upper end of the lower rubber sleeve. The upper rubber sleeve is fitted onto the upper screw. An anti-rotation part is provided on the upper screw. The lower end of the upper rubber sleeve abuts against the anti-rotation part. The threaded portion of the upper screw extends to the outer part of the upper rubber sleeve.

[0008] The automotive vacuum pump includes a vacuum pump body and a mounting base, with a mounting base slot provided on the side of the mounting base.

[0009] The novel vibration damping mechanism for the automotive vacuum pump also includes a mounting plate. The threaded portion of the lower screw passes through a through hole on the mounting plate, and a fastening nut is screwed onto the side of the threaded portion of the lower screw passing through the through hole on the mounting plate.

[0010] The groove of the upper rubber sleeve is fitted into the mounting base slot of the mounting base, and the threaded part of the upper screw is tightened with a fastening nut.

[0011] The automotive vacuum pump includes multiple mounting brackets.

[0012] The upper screw includes an upper screw end and an upper screw body, which are T-shaped.

[0013] The lower screw includes a lower screw end and a lower screw body, which are T-shaped.

[0014] The anti-follow-rotation part is configured as a polygonal structure.

[0015] The lower part of the upper rubber sleeve is provided with an anti-heel rotation groove, which is designed to have the same shape and size as the anti-heel rotation part, and the anti-heel rotation part is fitted into the anti-heel rotation groove.

[0016] The upper rubber sleeve is fitted with an inner bushing. The upper bushing includes a horizontal upper bushing surface and a vertical upper bushing surface. The horizontal upper bushing surface and the vertical upper bushing surface form a T-shaped structure. The horizontal upper bushing surface is attached to the upper part of the upper rubber sleeve, and the upper screw passes through the upper bushing.

[0017] The working principle and beneficial effects of the technical solution adopted in this invention are as follows:

[0018] The novel vibration damping mechanism for an automotive vacuum pump described in this invention comprises an upper rubber sleeve and a lower rubber sleeve. An upper rubber sleeve groove is provided on the outer ring of the upper rubber sleeve, which is used for a snap-fit ​​connection between the upper rubber sleeve and the mounting bracket of the automotive vacuum pump, thus securing the upper rubber sleeve. A lower screw is fitted inside the lower end of the lower rubber sleeve, and the lower screw is vulcanized inside the lower rubber sleeve to ensure the connection strength meets requirements. The threaded portion of the lower screw extends to the outer part of the lower rubber sleeve, and the lower screw is used to connect to a mounting plate. An upper screw is fitted inside the upper end of the lower rubber sleeve, and the upper screw is vulcanized inside the upper rubber sleeve to ensure the connection strength meets requirements. The upper rubber sleeve is fitted onto the upper screw, securing it in place. An anti-rotation feature is provided on the upper screw to prevent rotation during tightening of the nut. This prevents damage to the vulcanized structure or twisting of the lower rubber sleeve, effectively preventing vibration damping mechanism failure. The lower end of the upper rubber sleeve rests against the anti-rotation feature, which supports the sleeve. The anti-rotation feature has a polygonal structure. When tightening the nut, one wrench is used to tighten the nut, while the other wrench is engaged with the anti-rotation feature to ensure the upper screw does not rotate during tightening. The threaded portion of the upper screw extends to the outer part of the upper rubber sleeve. The upper screw requires tightening the nut to secure the upper rubber sleeve to the upper screw. This invention features a two-stage vibration damping structure. The first-stage damping mechanism uses a bushing and an upper rubber sleeve made of rubber material. The upper rubber sleeve connects to the mounting base, balancing connection and damping effect. The second-stage damping employs a non-contact structure, where the upper and lower rubber sleeves are connected by an upper screw, transmitting vibration through the lower rubber sleeve, thus enhancing the damping effect. Specifically, during structural connection, the mounting base slot of the automotive vacuum pump engages with the groove of the upper rubber sleeve. The upper bushing is embedded within the upper rubber sleeve and has a flanged structure, forming a horizontal surface for the upper bushing. The upper screw, through a tightening nut, secures the upper rubber sleeve and upper bushing together. The upper rubber sleeve and its upper bushing assembly provide the first stage of vibration damping for the automotive pump installation. Because the connection is via a fastening nut, the vibration after the first stage of damping is transmitted to the upper screw. The upper and lower screws are embedded in the lower rubber sleeve through a vulcanization process. The upper and lower screws do not directly contact each other; vibration is transmitted through the rubber material of the lower rubber sleeve, providing a second stage of damping and greatly reducing the vibration transmitted from the upper screw to the lower screw. The anti-rotation part can be machined into a hexagonal surface, which has an anti-rotation function when tightening the fastening nut, preventing the upper screw from rotating and damaging the vulcanized bond or twisting the lower rubber sleeve, thus avoiding failure of the damping mechanism. Attached Figure Description

[0019] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0020] Figure 1 This is a schematic diagram of the structure of the novel vibration damping mechanism for an automotive vacuum pump as described in this invention when connected to an automotive vacuum pump;

[0021] Figure 2This is a schematic diagram of the upper rubber sleeve of the novel vibration damping mechanism for the automotive vacuum pump described in this invention;

[0022] Figure 3 This is a partial structural schematic diagram of the mounting plate of the novel vibration damping mechanism for an automotive vacuum pump according to the present invention;

[0023] Figure 4 This is a schematic diagram of the novel vibration damping mechanism for an automotive vacuum pump according to the present invention;

[0024] Figure 5 This is a schematic diagram of the upper screw of the novel vibration damping mechanism for an automotive vacuum pump according to the present invention;

[0025] The labels in the attached diagram are as follows: 1. Automotive vacuum pump; 2. Vibration damping mechanism; 3. Mounting plate; 4. Fastening nut; 5. Upper rubber sleeve groove; 6. Mounting seat slot; 7. Upper screw; 8. Upper bushing; 9. Upper rubber sleeve; 10. Lower rubber sleeve; 11. Lower screw; 12. Lower screw threaded part; 13. Anti-rotation part; 15. Upper screw threaded part; 16. Vacuum pump body; 17. Mounting seat; 18. Upper screw end; 19. Upper screw rod body; 20. Lower screw end; 21. Lower screw rod body; 22. Upper bushing horizontal surface; 23. Upper bushing vertical part. Detailed Implementation

[0026] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of the present invention, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0027] As attached Figure 1 -Appendix Figure 5As shown, this invention discloses a novel vibration damping mechanism for an automotive vacuum pump, comprising an upper rubber sleeve 9 and a lower rubber sleeve 10. The upper rubber sleeve 9 has an upper rubber sleeve groove 5 on its outer ring. A lower screw 11 is fitted inside the lower end of the lower rubber sleeve 10. The lower screw thread 12 at the lower end of the lower screw 11 extends to the lower outer part of the lower rubber sleeve 10. An upper screw 7 is fitted inside the upper end of the lower rubber sleeve 10. The upper rubber sleeve 9 is fitted onto the upper screw 7. An anti-rotation part 13 is provided on the upper screw 7. The lower end of the upper rubber sleeve 9 abuts against the anti-rotation part 13. The upper screw thread 15 at the upper end of the upper screw 7 extends to the upper outer part of the upper rubber sleeve 9. This structure addresses the shortcomings of existing technologies by proposing an improved technical solution. During structural design, an upper rubber sleeve 9 and a lower rubber sleeve 10 are fabricated. An upper rubber sleeve groove 5 is provided on the outer ring of the upper rubber sleeve 9. The upper rubber sleeve groove 5 is used for the upper rubber sleeve 9 and the mounting bracket slot 6 of the automotive vacuum pump 1 to engage and connect, thus fixing the upper rubber sleeve 9. A lower screw 11 is fitted inside the lower end of the lower rubber sleeve 10. The lower screw 11 is vulcanized inside the lower rubber sleeve 10 to ensure the connection strength meets requirements. The lower screw thread 12 at the lower end of the lower screw 11 extends to the lower outer part of the lower rubber sleeve 10. The lower screw 11 is used to connect the mounting plate 3. An upper screw 7 is fitted inside the upper end of the lower rubber sleeve 10. The upper screw 7 is vulcanized inside the upper rubber sleeve 9 to ensure the connection strength meets requirements. The upper sleeve 9 is fixedly connected to the upper screw 7 by being fitted onto the upper screw 7. An anti-rotation part 13 is provided on the upper screw 7 to prevent the upper screw 7 from rotating when the fastening nut 4 is tightened, thus preventing damage to the vulcanized structure or twisting of the lower sleeve 10. This effectively prevents the vibration damping mechanism from failing. The lower end of the upper sleeve 5 abuts against the anti-rotation part 13, which supports the upper sleeve 7. The anti-rotation part 13 has a polygonal structure. When tightening the fastening nut 4, one wrench tightens the nut 4, while the other wrench is engaged with the anti-rotation part 13 to ensure that the upper screw 7 does not rotate when the nut 4 is tightened. The upper screw thread 15 at the upper end of the upper screw 7 extends to the outer part of the upper sleeve 9. The upper screw 7 needs to be tightened with the fastening nut 4 to fix the upper sleeve 9 onto the upper screw 7. This invention features a two-stage vibration damping structure. The first-stage damping mechanism uses an upper rubber sleeve 9 made of bushing and rubber material. The upper rubber sleeve 9 connects to the mounting base 17, balancing connection and damping effect. The second-stage damping employs a non-contact structure, where the upper and lower rubber sleeves are connected by an upper screw, and vibration is transmitted through the lower rubber sleeve 10, enhancing the damping effect. Specifically, during structural connection, the mounting base slot 6 of the automotive vacuum pump 1 engages with the upper rubber sleeve groove 5 of the upper rubber sleeve 9. The upper bushing 8 is embedded within the upper rubber sleeve 9 and has a flanged structure, forming a horizontal surface for the upper bushing. The upper screw 7 connects and presses the upper rubber sleeve 9 and the upper bushing 8 together with a fastening nut 4. The combination of the upper rubber sleeve 9 and the upper bushing 8 provides the first stage of vibration damping for the automotive pump installation.Because of the fastening nut connection, the vibration after the first stage of vibration damping is transmitted to the upper screw 7. The upper screw 7 and the lower screw 11 are embedded in the lower rubber sleeve 10 through a vulcanization process. The upper screw 7 and the lower screw 11 do not directly contact each other. Vibration is transmitted through the rubber material of the lower rubber sleeve 10, providing the second stage of vibration damping, which greatly reduces the vibration transmitted from the upper screw 10 to the lower screw 11 (mounting plate 3). The anti-rotation part 13 can be machined into a hexagonal surface, which has an anti-rotation function when tightening the fastening nut, to prevent the upper screw 7 from rotating and damaging the vulcanized bond or twisting the lower rubber sleeve 10, thus avoiding the failure of the vibration damping mechanism. The vibration damping mechanism of the present invention greatly reduces the transmission of electric vacuum pump vibration to the mounting plate through a two-stage vibration damping mechanism, thereby greatly improving the NVH performance of the entire vehicle. The novel vibration damping mechanism for automotive vacuum pumps described in this invention has strong adaptability, high integration, simple structure, and good vibration damping effect.

[0028] The automotive vacuum pump 1 includes a vacuum pump body 16 and a mounting base 17, with a mounting base slot 6 on the side of the mounting base 17. In this structure, the vacuum pump body 16 and the mounting base 17 are fixed together. When configured, the automotive vacuum pump 1 is fixedly connected to the mounting plate 3 via a vibration damping mechanism 2 and a fastening nut 4. The fastening nut 4 on the lower screw is used to fix the mounting plate 3 and the lower screw, while the fastening nut on the upper screw is used to fix the upper rubber sleeve, which connects to the mounting base of the automotive vacuum pump 1. When the vacuum pump is running, the vibration damping mechanism 2 attenuates its vibration, reducing the vibration transmitted to the mounting plate 3 and thus improving the overall NVH performance of the vehicle.

[0029] The novel vibration damping mechanism for the automotive vacuum pump also includes a mounting plate 3. The threaded portion 12 of the lower screw 11 passes through a through hole on the mounting plate 3, and a fastening nut 4 is screwed onto the side of the threaded portion 12 passing through the through hole on the mounting plate 3. In this structure, the fastening nut of the lower screw reliably achieves a fixed connection between the lower screw and the mounting plate, and the lower screw 11 is fixedly connected to the lower rubber sleeve 10.

[0030] The upper rubber sleeve 9 has an upper rubber sleeve groove 5 that is fitted into the mounting base groove 6 of the mounting base 17, and the upper screw thread 15 of the upper screw rod 7 is screwed with a fastening nut 4. With the above structure, the fastening nut 4 of the upper screw rod 7 reliably achieves the fixed connection of the upper rubber sleeve 9 to the upper screw rod 7.

[0031] The automotive vacuum pump includes multiple mounting bases 17. The number of mounting bases can be adjusted according to actual needs, thus correspondingly increasing the number of vibration damping mechanisms.

[0032] The upper screw 7 includes an upper screw end 18 and an upper screw body 19, which are T-shaped. In this structure, the upper screw 7 and the lower screw 11 are respectively embedded in the lower rubber sleeve 10 through a vulcanization process. The upper screw 7 and the lower screw 11 do not directly contact each other; vibration is transmitted through the lower rubber sleeve 10, providing an additional level of vibration damping and greatly reducing the vibration transmitted from the upper screw 10 to the lower screw 11 (i.e., the transmission mounting plate 3). The upper screw end 18 is a polygonal structure, vulcanized within the lower rubber sleeve to prevent rotation under stress.

[0033] The lower screw 11 includes a lower screw end 20 and a lower screw body 21, which are T-shaped. In this structure, the lower screw end 20 and the lower screw body 21 are integrally formed, effectively ensuring their strength. The lower screw end 20 is a polygonal structure, vulcanized within the lower rubber sleeve to prevent rotation under stress.

[0034] The anti-rotation part 13 is configured as a polygonal structure. This polygonal structure facilitates the use of a wrench for limiting the rotation when tightening the nut connection.

[0035] The upper rubber sleeve 9 has an anti-rotation groove at its lower part. The anti-rotation groove has the same shape and size as the anti-rotation part 13, which is fitted into the anti-rotation groove. In another embodiment, the structure described above can also prevent the upper screw 7 from rotating as the fastening nut 4 is tightened.

[0036] The upper sleeve 9 is fitted with an upper bushing 8. The upper bushing 7 includes a horizontal surface 22 and a vertical portion 23, which are T-shaped. The horizontal surface 22 is attached to the upper part of the upper sleeve 9, and the upper screw 7 passes through the upper bushing 8. In this structure, the horizontal surface 22 and the vertical portion 23 are integrally formed. The horizontal surface 22 is attached to the upper surface of the upper sleeve.

[0037] The novel vibration damping mechanism for an automotive vacuum pump described in this invention comprises an upper rubber sleeve 9 and a lower rubber sleeve 10. An upper rubber sleeve groove 5 is provided on the outer circumference of the upper rubber sleeve 9, which is used for the upper rubber sleeve 9 and the mounting seat slot 6 of the automotive vacuum pump 1 to secure the upper rubber sleeve 9. A lower screw 11 is fitted inside the lower end of the lower rubber sleeve 10, and the lower screw 11 is vulcanized inside the lower rubber sleeve 10 to ensure the connection strength meets requirements. The lower screw thread 12 at the lower end of the lower screw 11 extends to the lower outer part of the lower rubber sleeve 10, and the lower screw 11 is used to connect to the mounting plate 3. An upper screw 7 is fitted inside the upper end of the lower rubber sleeve 10, and the upper screw 7 is vulcanized inside the upper rubber sleeve 9 to ensure the connection strength. To meet the requirements, the upper rubber sleeve 9 is fitted onto the upper screw 7, achieving a fixed connection between the upper rubber sleeve 9 and the upper screw 7. An anti-rotation part 13 is provided on the upper screw 7 to prevent the upper screw 7 from rotating when the fastening nut 4 is tightened, thus preventing damage to the vulcanized structure or twisting of the lower rubber sleeve 10. This effectively prevents the vibration damping mechanism from failing. The lower end of the upper rubber sleeve 5 abuts against the anti-rotation part 13, which supports the upper rubber sleeve 7. The anti-rotation part 13 has a polygonal structure. When tightening the fastening nut 4, one wrench tightens the fastening nut 4, while the other wrench is engaged with the anti-rotation part 13 to ensure that the upper screw 7 does not rotate when the fastening nut 4 is tightened. The upper screw thread 15 at the upper end of the upper screw 7 extends to the outer part of the upper rubber sleeve 9. The upper screw 7 needs to be tightened with the fastening nut 4 to fix the upper rubber sleeve 9 onto the upper screw 7. This invention features a two-stage vibration damping structure. The first-stage damping mechanism uses an upper rubber sleeve 9 made of bushing and rubber material. The upper rubber sleeve 9 connects to the mounting base 17, balancing connection and damping effect. The second-stage damping employs a non-contact structure, where the upper and lower rubber sleeves are connected by an upper screw, and vibration is transmitted through the lower rubber sleeve 10, enhancing the damping effect. Specifically, during structural connection, the mounting base slot 6 of the automotive vacuum pump 1 engages with the upper rubber sleeve groove 5 of the upper rubber sleeve 9. The upper bushing 8 is embedded within the upper rubber sleeve 9 and has a flanged structure, forming a horizontal surface for the upper bushing. The upper screw 7 connects and presses the upper rubber sleeve 9 and the upper bushing 8 together with a fastening nut 4. The combination of the upper rubber sleeve 9 and the upper bushing 8 provides the first stage of vibration damping for the automotive pump installation. Because of the fastening nut connection, the vibration after the first stage of vibration damping is transmitted to the upper screw 7. The upper screw 7 and the lower screw 11 are embedded in the lower rubber sleeve 10 through a vulcanization process. The upper screw 7 and the lower screw 11 do not directly contact each other. Vibration is transmitted through the rubber material of the lower rubber sleeve 10, providing the second stage of vibration damping, which greatly reduces the vibration transmitted from the upper screw 10 to the lower screw 11 (mounting plate 3). The anti-rotation part 13 can be machined into a hexagonal surface, which has an anti-rotation function when tightening the fastening nut, to prevent the upper screw 7 from rotating and damaging the vulcanized bond or twisting the lower rubber sleeve 10, avoiding failure of the vibration damping mechanism and comprehensively improving the NVH performance of the vehicle.

[0038] The vibration damping mechanism described in this invention integrates two stages of vibration damping into a compact structure. The use of this vibration damping mechanism effectively enhances the adaptability of the vacuum pump's installation location, eliminating the need for other components (such as power mounts) to assist in vibration damping. The second-stage vibration damping of this invention is manufactured using a process where two screws are respectively embedded in and vulcanized with a lower rubber sleeve, resulting in enhanced vibration damping performance.

[0039] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A novel vibration damping mechanism for an automotive vacuum pump, characterized in that: Includes an upper rubber sleeve (9) and a lower rubber sleeve (10). The outer ring of the upper rubber sleeve (9) is provided with an upper rubber sleeve groove (5). The lower end of the lower rubber sleeve (10) is fitted with a lower screw (11). The lower screw thread (12) at the lower end of the lower screw (11) extends to the lower outer part of the lower rubber sleeve (10). The upper end of the lower rubber sleeve (10) is fitted with an upper screw (7). The upper rubber sleeve (9) is fitted onto the upper screw (7). The upper screw (7) is provided with an anti-rotation part (13). The lower end of the upper rubber sleeve (9) abuts against the anti-rotation part (13). The upper screw thread (15) at the upper end of the upper screw (7) extends to the upper outer part of the upper rubber sleeve (9).

2. The novel vibration damping mechanism for an automotive vacuum pump according to claim 1, characterized in that: The automotive vacuum pump (1) includes a vacuum pump body (16) and a mounting base (17), with a mounting base slot (6) provided on the side of the mounting base (17).

3. The novel vibration damping mechanism for an automotive vacuum pump according to claim 1 or 2, characterized in that: The novel vibration damping mechanism of the automotive vacuum pump also includes a mounting plate (3), the threaded part (12) of the lower screw (11) passes through the through hole on the mounting plate (3), and a fastening nut (4) is screwed onto the side of the threaded part (12) of the lower screw (11) that passes through the through hole on the mounting plate (3).

4. The novel vibration damping mechanism for an automotive vacuum pump according to claim 2, characterized in that: The upper rubber sleeve (9) groove (5) is fitted into the mounting seat slot (6) of the mounting seat (17), and the upper screw thread (15) of the upper screw (7) is screwed with a fastening nut (4).

5. The novel vibration damping mechanism for an automotive vacuum pump according to claim 2, characterized in that: The automotive vacuum pump includes multiple mounting bases (17).

6. The novel vibration damping mechanism for an automotive vacuum pump according to claim 1 or 2, characterized in that: The upper screw (7) includes an upper screw end (18) and an upper screw body (19), which are T-shaped.

7. The novel vibration damping mechanism for an automotive vacuum pump according to claim 1 or 2, characterized in that: The lower screw (11) includes a lower screw end (20) and a lower screw body (21), which are T-shaped.

8. The novel vibration damping mechanism for an automotive vacuum pump according to claim 1 or 2, characterized in that: The anti-following and turning part (13) is configured as a polygonal structure.

9. The novel vibration damping mechanism for an automotive vacuum pump according to claim 1, characterized in that: Alternatively, an anti-heel rotation groove is provided at the lower part of the upper rubber sleeve (9). The anti-heel rotation groove is designed with the same shape and size as the anti-heel rotation part, and the anti-heel rotation part (13) is fitted into the anti-heel rotation groove.

10. The novel vibration damping mechanism for an automotive vacuum pump according to claim 1 or 2, characterized in that: The upper rubber sleeve (9) is fitted with an upper bushing (8). The upper bushing (8) includes an upper bushing horizontal surface (22) and an upper bushing vertical part (23). The upper bushing horizontal surface (22) and the upper bushing vertical part (23) form a T-shaped structure. The upper bushing horizontal surface (22) is attached to the upper part of the upper rubber sleeve (9), and the upper screw (7) passes through the upper bushing (8).

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