Novel damping mechanism of automobile vacuum pump

Abstract

The invention belongs to a novel damping mechanism of an automobile vacuum pump in the technical field of electric vacuum pumps. Comprising an upper rubber sleeve (9) and a lower rubber sleeve (10), an upper rubber sleeve groove (5) is formed in the outer ring of the upper rubber sleeve (9), a lower screw rod (11) is clamped in the lower end of the lower rubber sleeve (10), a lower screw rod thread part (12) at the lower end of the lower screw rod (11) extends to the outer position of the lower portion of the lower rubber sleeve (10), an upper screw rod (7) is clamped in the upper end of the lower rubber sleeve (10), the upper rubber sleeve (9) is arranged on the upper screw rod (7) in a sleeving mode, and an anti-following-rotation part (13) is arranged on the upper screw rod (7). The lower end of the upper rubber sleeve (5) abuts against the following rotation preventing portion (13), and an upper screw thread portion (15) at the upper end of the upper screw (7) extends to the outer portion of the upper portion of the upper rubber sleeve (9). The novel vibration reduction mechanism of the automobile vacuum pump is high in adaptability, high in integration level, simple in structure and good in vibration reduction effect.

Description

Technical Field

[0001] The invention belongs to the technical field of electric vacuum pumps, and more specifically, relates to a novel vibration reduction mechanism for an automobile vacuum pump. Background Art

[0002] In the field of automotive technology, some fuel vehicles and new energy vehicles currently use electric vacuum pumps as vacuum sources. Since the vacuum pump generates vibration when it is working, the vibration indicators generated by the same specification of electric vacuum pumps at different speeds, different vacuum loads, and different voltages are not exactly the same. For this reason, it is necessary to use a vibration reduction mechanism to buffer the electric vacuum pump to improve the NVH level of the whole vehicle. At present, in order to obtain the vibration reduction effect, the electric vacuum pump and its mounting bracket are arranged on the power (motor) assembly, and vibration reduction is performed through the power (motor) installation suspension. This method requires the power (motor) assembly to have its own hanging point threaded holes. In addition, the height of the power (motor) installation point from the ground and the height of the electric vacuum pump waterproof arrangement are limited, resulting in insufficient adaptability of this solution.

[0003] There is a technology in the prior art named "an electric vacuum pump vibration reduction mechanism" and with a publication (announcement) number of "CN215719326U". This technology provides an electric vacuum pump vibration reduction mechanism, including a mounting base, a fixed rail, an adjustment rail, a moving block, a damping spring shock absorber, a vacuum pump body, a first adjustment mechanism and a second adjustment mechanism. The fixed rail is fixed to one side of the top of the mounting base, the adjustment rail is slidably connected to the end of the top of the mounting base away from the fixed rail, the four moving blocks are symmetrically slidably connected to the outer wall of the fixed rail and the outer wall of the adjustment rail, and the damping spring shock absorber is fixed to the top of the moving block. The utility model can complete the vibration reduction work of the vacuum pump, and at the same time can adjust the positions of the four damping spring shock absorbers according to the positions of the mounting holes on different vacuum pumps, so that vibration reduction work can be performed on a variety of different vacuum pumps, which is convenient for people to replace the vacuum pump on the frame, and can ensure that the strength of the frame will not be damaged when the vacuum pump is replaced.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in view of the deficiencies of the prior art, a new vibration reduction mechanism for a new automobile vacuum pump is provided which has strong adaptability, high integration, simple structure and good vibration reduction effect.

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

[0007] The present invention discloses a novel vibration reduction mechanism for an automobile vacuum pump, comprising an upper rubber sleeve and a lower rubber sleeve. The upper rubber sleeve outer ring is provided with an upper rubber sleeve groove, a lower screw is clamped inside the lower end of the lower rubber sleeve, a lower screw thread portion at the lower end of the lower screw extends to an external position of the lower part of the lower rubber sleeve, an upper screw is clamped inside the upper end of the lower rubber sleeve, the upper rubber sleeve is sleeved on the upper screw, an anti-rotation portion is provided on the upper screw, the lower end of the upper rubber sleeve abuts against the anti-rotation portion, and the upper screw thread portion at the upper end of the upper screw extends to an external position of the upper part of the upper rubber sleeve.

[0008] The automobile vacuum pump comprises a vacuum pump body and a mounting seat, and a mounting seat slot is arranged on the side of the mounting seat.

[0009] The novel vibration reduction mechanism of the automobile vacuum pump also includes a mounting plate, the lower screw thread portion of the lower screw passes through a through hole on the mounting plate, and the lower screw thread portion passes through one side of the through hole on the mounting plate and is screwed with a fastening nut.

[0010] The upper rubber sleeve groove of the upper rubber sleeve is clamped in the mounting seat clamping groove of the mounting seat, and the upper screw threaded part of the upper screw is screwed with a fastening nut.

[0011] The automobile vacuum pump comprises a plurality of mounting seats.

[0012] The upper screw comprises an upper screw end and an upper screw body, and the upper screw end and the upper screw body are in a T-shaped structure.

[0013] The lower screw comprises a lower screw end and a lower screw body, and the lower screw end and the lower screw body are in a T-shaped structure.

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

[0015] An anti-heel rotation groove is arranged at the lower part of the upper rubber sleeve. The anti-heel rotation groove is arranged to have the same shape and size as the anti-heel rotation part. The anti-heel rotation part is clamped in the anti-heel rotation groove.

[0016] The upper sleeve is sleeved inside the upper rubber sleeve, and the upper sleeve includes an upper sleeve horizontal surface and an upper sleeve vertical portion, the upper sleeve horizontal surface and the upper sleeve vertical portion are in a T-shaped structure, the upper sleeve horizontal surface is attached to the upper portion of the upper rubber sleeve, and the upper screw passes through the upper sleeve.

[0017] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0018] The novel vibration reduction mechanism of the automobile vacuum pump of the present invention is manufactured by manufacturing an upper rubber sleeve and a lower rubber sleeve. An upper rubber sleeve groove is arranged on the outer ring of the upper rubber sleeve. The upper rubber sleeve groove is used for clamping and connecting the upper rubber sleeve and the mounting seat slot of the automobile vacuum pump to fix the upper rubber sleeve. The lower end of the lower rubber sleeve is clamped inside the lower screw, and the lower screw is vulcanized inside the lower rubber sleeve to ensure that the connection strength between the two meets the requirements. The lower screw threaded portion at the lower end of the lower screw extends to the outer position of the lower part of the lower rubber sleeve. The lower screw is used to connect the mounting plate. The upper end of the lower rubber sleeve is clamped inside the upper screw, and the upper screw is vulcanized inside the upper rubber sleeve to ensure that the connection strength between the two meets the requirements. The upper rubber sleeve is sleeved on the upper screw rod to realize the fixed connection of the upper rubber sleeve on the upper screw rod. The upper screw rod is provided with an anti-rotation part, which is used to prevent the upper screw rod from rotating when the upper screw rod is screwed with the fastening nut, so as to prevent the upper screw rod from rotating to damage the vulcanized structure or twist the lower rubber sleeve, which can effectively prevent the vibration reduction mechanism from failing. The lower end of the upper rubber sleeve abuts against the anti-rotation part, and the anti-rotation part carries the upper rubber sleeve. The anti-rotation part is a polygonal structure. When the fastening nut is screwed, one wrench screws the fastening nut, and the other wrench is clamped on the anti-rotation part to ensure that the upper screw rod does not rotate when the fastening nut is tightened. The upper screw threaded part at the upper end of the upper screw rod extends to the upper outer position of the upper rubber sleeve. The upper screw rod needs to be screwed with the fastening nut to fix the upper rubber sleeve on the upper screw rod. This invention is a two-stage vibration reduction structure. The first-stage vibration reduction mechanism adopts an upper rubber sleeve made of bushing + rubber material. The upper rubber sleeve is connected to the mounting seat, taking into account both connection and tightening and vibration reduction effects. The second-stage vibration reduction adopts a non-contact structure, that is, the upper rubber sleeve and the lower rubber sleeve are connected by an upper screw, and the vibration is transmitted through the lower rubber sleeve, which enhances the vibration reduction effect. Specifically, when the structure is connected, the mounting seat slot of the automobile vacuum pump is connected with the upper rubber sleeve groove of the upper rubber sleeve, the upper bushing is embedded in the upper rubber sleeve, and has a flanging structure to form an upper bushing horizontal plane. The upper screw connects and presses the upper rubber sleeve and the upper bushing through a tightening nut. The upper rubber sleeve and its upper bushing combination provide the first-stage vibration reduction for the installation of the automobile pump. Due to the connection through the fastening nut, the vibration is transmitted to the upper screw after the first level of vibration reduction; the upper screw and the lower screw are embedded in the lower rubber sleeve through the vulcanization process. The upper screw and the lower screw are not in direct contact, and the vibration is transmitted through the rubber material of the lower rubber sleeve, providing the second level of vibration reduction, greatly reducing the vibration transmitted from the upper screw to the lower screw. The anti-rotation part can be processed into a hexagonal surface, which has an anti-rotation function when screwing the fastening nut to prevent the upper screw from rotating to damage the vulcanization bonding or twist the lower rubber sleeve, avoiding failure of the vibration reduction mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 It is a structural schematic diagram of the novel vibration reduction mechanism of the automobile vacuum pump of the present invention when it is connected to the automobile vacuum pump;

[0021] Figure 2It is a structural schematic diagram of the upper rubber sleeve of the novel vibration reduction mechanism of the automobile vacuum pump according to the present invention;

[0022] Figure 3 It is a partial structural schematic diagram of a mounting plate of a novel vibration reduction mechanism of an automobile vacuum pump according to the present invention;

[0023] Figure 4 It is a structural schematic diagram of the novel vibration reduction mechanism of the automobile vacuum pump according to the present invention;

[0024] Figure 5 It is a structural schematic diagram of the upper screw of the novel vibration reduction mechanism of the automobile vacuum pump according to the present invention;

[0025] The marks in the accompanying drawings are respectively: 1. Automobile vacuum pump; 2. Vibration reduction 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. Threaded portion of lower screw; 13. Anti-rotation portion; 15. Threaded portion of upper screw; 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. Horizontal plane of upper bushing; 23. Vertical portion of upper bushing. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0027] As attached Figure 1 -Attached Figure 5As shown, the present invention is a new vibration reduction mechanism for automobile vacuum pump, including an upper rubber sleeve 9 and a lower rubber sleeve 10, wherein an upper rubber sleeve groove 5 is arranged on the outer ring of the upper rubber sleeve 9, a lower screw 11 is clamped inside the lower end of the lower rubber sleeve 10, a lower screw thread portion 12 at the lower end of the lower screw 11 extends to the lower outer position of the lower rubber sleeve 10, an upper screw 7 is clamped inside the upper end of the lower rubber sleeve 10, the upper rubber sleeve 9 is sleeved on the upper screw 7, an anti-rotation portion 13 is arranged on the upper screw 7, the lower end of the upper rubber sleeve 5 abuts against the anti-rotation portion 13, and an upper screw thread portion 15 at the upper end of the upper screw 7 extends to the upper outer position of the upper rubber sleeve 9. The above structure proposes an improved technical solution to address the deficiencies in the prior art. When setting up the structure, an upper rubber sleeve 9 and a lower rubber sleeve 10 are made, and an upper rubber sleeve groove 5 is set 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 seat slot 6 of the automobile vacuum pump 1 to be clamped and connected to realize the fixing of the upper rubber sleeve 9. The lower end of the lower rubber sleeve 10 is clamped with a lower screw 11, and the lower screw 11 is vulcanized inside the lower rubber sleeve 10 to ensure that the connection strength between the two meets the requirements. The lower screw threaded portion 12 at the lower end of the lower screw 11 extends to the lower outer position of the lower rubber sleeve 10. The lower screw 11 is used to connect the mounting plate 3. The upper end of the lower rubber sleeve 10 is clamped with an upper screw 7, and the upper screw 7 is vulcanized inside the upper rubber sleeve 9 to ensure that the connection strength between the two meets the requirements. The upper rubber sleeve 9 is mounted on the upper screw 7 to achieve fixed connection with the upper rubber sleeve 9. The upper screw 7 is provided with an anti-rotation part 13, which is used to prevent the upper screw 7 from rotating when the upper screw 7 is screwed with the fastening nut 4, so as to prevent the upper screw 7 from rotating to damage the vulcanized structure or twist the lower rubber sleeve 10, which can effectively prevent the vibration reduction mechanism from failing. The lower end of the upper rubber sleeve 5 abuts against the anti-rotation part 13, and the anti-rotation part 13 carries the upper rubber sleeve 7. The anti-rotation part 13 is a polygonal structure. When the fastening nut 4 is screwed, one wrench screws the fastening nut 4, and the other wrench is clamped on the anti-rotation part 13 to ensure that the upper screw 7 will not rotate when the fastening nut 4 is tightened. The upper screw threaded part 15 at the upper end of the upper screw 7 extends to the upper outer position of the upper rubber sleeve 9. The upper screw 7 needs to be screwed with the fastening nut 4 to fix the upper rubber sleeve 9 on the upper screw 7. This invention is a two-stage vibration reduction structure. The first-stage vibration reduction mechanism adopts an upper rubber sleeve 9 made of a bushing + rubber material. The upper rubber sleeve 9 is connected to the mounting seat 17, taking into account both the connection and tightening and the vibration reduction effect; the second-stage vibration reduction adopts a non-contact structure, that is, the upper rubber sleeve and the lower rubber sleeve are connected by an upper screw, and the vibration is transmitted through the lower rubber sleeve 10, and the vibration reduction effect is enhanced. Specifically, when the structure is connected, the mounting seat slot 6 of the automobile vacuum pump 1 is clamped with the upper rubber sleeve groove 5 of the upper rubber sleeve 9, the upper bushing 8 is embedded in the upper rubber sleeve 9, and has a flanging structure to form an upper bushing horizontal plane, the upper screw 7 connects and presses the upper rubber sleeve 9 and the upper bushing 8 through the tightening nut 4, and the upper rubber sleeve 9 and its upper bushing 8 combination provide the first-stage vibration reduction for the automobile pump installation.Since the connection is made through the fastening nut, the vibration is transmitted to the upper screw 7 after the first level of vibration reduction; the upper screw 7 and the lower screw 11 are embedded in the lower rubber sleeve 10 through a vulcanization process, and the upper screw 7 and the lower screw 11 are not in direct contact, and the vibration is transmitted through the rubber material of the lower rubber sleeve 10, providing a second level of vibration reduction, which greatly reduces the vibration transmitted from the upper screw 10 to the lower screw 11 (mounting plate 3). The anti-rotation portion 13 can be processed into a hexagonal surface, which has an anti-rotation function when the fastening nut is screwed, so as to prevent the upper screw 7 from rotating to destroy the vulcanization bonding or twist the lower rubber sleeve 10, thereby avoiding failure of the vibration reduction mechanism. The vibration reduction mechanism of the present invention greatly reduces the transmission of the vibration of the electric vacuum pump to the mounting plate through a two-stage vibration reduction mechanism, thereby greatly improving the NVH performance of the whole vehicle. The new vibration reduction mechanism of the automotive vacuum pump described in the present invention has strong adaptability, high integration, simple structure and good vibration reduction effect.

[0028] The automobile vacuum pump 1 comprises a vacuum pump body 16 and a mounting seat 17, and a mounting seat slot 6 is arranged on the side of the mounting seat 17. In the above structure, the vacuum pump body 16 and the mounting seat 17 are fixedly connected. When the structure is arranged, the automobile vacuum pump 1 is fixedly connected with the mounting plate 3 through the vibration reduction mechanism 2 and the fastening nut 4, wherein the fastening nut 4 of the lower screw is used to fix the mounting plate 3 and the lower screw, and the fastening nut of the upper screw is used to fix the upper rubber sleeve, which is connected to the mounting seat of the automobile vacuum pump 1. When the vacuum pump is running, its vibration is attenuated by the vibration reduction mechanism 2, and the vibration transmitted to the mounting plate 3 is reduced, so as to achieve the purpose of improving the NVH performance of the whole vehicle.

[0029] The novel vibration reduction mechanism of the automobile vacuum pump further comprises a mounting plate 3, a lower screw 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 on one side of the lower screw threaded portion 12 through the through hole on the mounting plate 3. With the above structure, the fastening nut of the lower screw can reliably realize the 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 groove 5 of the upper rubber sleeve 9 is clamped in the mounting seat clamping groove 6 of the mounting seat 17, and the upper screw thread portion 15 of the upper screw 7 is screwed with the fastening nut 4. With the above structure, the fastening nut 4 of the upper screw 7 can reliably realize the fixed connection of the upper rubber sleeve 9 on the upper screw 7.

[0031] The automobile vacuum pump comprises a plurality of mounting seats 17. The above structure can be configured with a certain number of mounting seats according to actual needs, thereby correspondingly configuring a certain number of vibration reduction mechanisms.

[0032] The upper screw 7 includes an upper screw end 18 and an upper screw body 19, and the upper screw end 18 and the upper screw body 19 are in a T-shaped structure. In the above 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 are not in direct contact, and vibration is transmitted through the lower rubber sleeve 10, providing another level of vibration reduction, 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 set to a polygonal structure and is vulcanized in the lower rubber sleeve to prevent force and rotation.

[0033] The lower screw 11 includes a lower screw end 20 and a lower screw body 21, and the lower screw end 20 and the lower screw body 21 are in a T-shaped structure. In the above structure, the lower screw end 20 and the lower screw body 21 are integrally processed and formed, which effectively ensures their own strength. The lower screw end 20 is set as a polygonal structure and is vulcanized in the lower rubber sleeve to prevent force and rotation.

[0034] The anti-rotation part 13 is configured as a polygonal structure. In the above structure, the anti-rotation part 13 is configured as a polygonal structure, which is convenient for limiting the position with a wrench when tightening the nut connection.

[0035] The lower part of the upper rubber sleeve 9 is provided with an anti-rotation groove, which is configured to have the same shape and size as the anti-rotation part, and the anti-rotation part 13 is clamped in the anti-rotation groove. The above structure, as another embodiment, can be provided with an anti-rotation groove, and the anti-rotation part 13 is clamped in the lower part of the upper rubber sleeve 9, so as to prevent the upper screw 7 from rotating as the fastening nut 4 is tightened.

[0036] The upper sleeve 8 is sleeved inside the upper sleeve 9, and the upper sleeve 7 includes an upper sleeve horizontal surface 22 and an upper sleeve vertical portion 23. The upper sleeve horizontal surface 22 and the upper sleeve vertical portion 23 are in a T-shaped structure. The upper sleeve horizontal surface 22 is attached to the upper portion of the upper sleeve 9, and the upper screw 7 passes through the upper sleeve 8. In the above structure, the upper sleeve horizontal surface 22 and the upper sleeve vertical portion 23 are an integrated structure, which is integrally processed and formed. The upper sleeve horizontal surface 22 is arranged in contact with the upper surface of the upper sleeve.

[0037] The novel vibration reduction mechanism of the automobile vacuum pump described in the present invention is structured by making an upper rubber sleeve 9 and a lower rubber sleeve 10, and setting an upper rubber sleeve groove 5 on the outer ring of the upper rubber sleeve 9. The upper rubber sleeve groove 5 is used for clamping and connecting the upper rubber sleeve 9 and the mounting seat slot 6 of the automobile vacuum pump 1 to fix the upper rubber sleeve 9. The lower end of the lower rubber sleeve 10 is clamped with a lower screw 11, and the lower screw 11 is vulcanized inside the lower rubber sleeve 10 to ensure that the connection strength between the two meets the requirements. The lower screw threaded portion 12 at the lower end of the lower screw 11 extends to the lower outer position of the lower rubber sleeve 10. The lower screw 11 is used to connect the mounting plate 3. The upper end of the lower rubber sleeve 10 is clamped with an upper screw 7, and the upper screw 7 is vulcanized inside the upper rubber sleeve 9 to ensure the connection strength between the two. The requirements are met. The upper rubber sleeve 9 is sleeved on the upper screw rod 7 to realize the fixed connection of the upper rubber sleeve 9 on the upper screw rod 7. The upper screw rod 7 is provided with an anti-rotation part 13. The anti-rotation part 13 is used to prevent the upper screw rod 7 from rotating when the upper screw rod 7 is screwed with the fastening nut 4, so as to prevent the upper screw rod 7 from rotating to damage the vulcanized structure or twist the lower rubber sleeve 10, which can effectively prevent the vibration reduction mechanism from failing. The lower end of the upper rubber sleeve 5 abuts against the anti-rotation part 13, and the anti-rotation part 13 carries the upper rubber sleeve 7. The anti-rotation part 13 is a polygonal structure. When the fastening nut 4 is screwed, one wrench screws the fastening nut 4, and the other wrench is clamped on the anti-rotation part 13 to ensure that the upper screw rod 7 will not rotate when the fastening nut 4 is tightened. The upper screw threaded part 15 at the upper end of the upper screw rod 7 extends to the upper outer position of the upper rubber sleeve 9. The upper screw rod 7 needs to be screwed with the fastening nut 4 to fix the upper rubber sleeve 9 on the upper screw rod 7. This invention is a two-stage vibration reduction structure. The first-stage vibration reduction mechanism adopts an upper rubber sleeve 9 made of a bushing + rubber material. The upper rubber sleeve 9 is connected to the mounting seat 17, taking into account both the connection and tightening and the vibration reduction effect; the second-stage vibration reduction adopts a non-contact structure, that is, the upper rubber sleeve and the lower rubber sleeve are connected by an upper screw, and the vibration is transmitted through the lower rubber sleeve 10, and the vibration reduction effect is enhanced. Specifically, when the structure is connected, the mounting seat slot 6 of the automobile vacuum pump 1 is clamped with the upper rubber sleeve groove 5 of the upper rubber sleeve 9, the upper bushing 8 is embedded in the upper rubber sleeve 9, and has a flanging structure to form an upper bushing horizontal plane, the upper screw 7 connects and presses the upper rubber sleeve 9 and the upper bushing 8 through the tightening nut 4, and the upper rubber sleeve 9 and its upper bushing 8 combination provide the first-stage vibration reduction for the automobile pump installation. Due to the connection through the fastening nut, the vibration is transmitted to the upper screw 7 after the first level of vibration reduction; the upper screw 7 and the lower screw 11 are embedded in the lower rubber sleeve 10 through the vulcanization process, and the upper screw 7 and the lower screw 11 are not in direct contact. The vibration is transmitted through the rubber material of the lower rubber sleeve 10, providing the second level of vibration reduction, greatly reducing the vibration transmitted from the upper screw 10 to the lower screw 11 (mounting plate 3). The anti-rotation part 13 can be processed into a hexagonal surface, which has an anti-rotation function when the fastening nut is screwed, so as to prevent the upper screw 7 from rotating to destroy the vulcanization bonding or twist the lower rubber sleeve 10, avoid causing the vibration reduction mechanism to fail, and comprehensively improve the NVH performance of the car.

[0038] The vibration reduction mechanism of the present invention integrates two-stage vibration reduction structures together, and the mechanism structure is compact. The use of the vibration reduction mechanism can effectively enhance the adaptability of the vacuum pump installation position, and it is not necessary to use other components (such as power suspension) to help vibration reduction. The second-stage vibration reduction of the present invention is made by the process of inlaying and vulcanizing two screws and the lower rubber sleeve of the rubber, and the vibration reduction effect is enhanced.

[0039] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A novel vibration reduction mechanism for an automobile vacuum pump, characterized in that: The utility model comprises an upper rubber sleeve (9) and a lower rubber sleeve (10), wherein an upper rubber sleeve groove (5) is arranged on the outer ring of the upper rubber sleeve (9), a lower screw rod (11) is clamped inside the lower end of the lower rubber sleeve (10), a lower screw rod threaded portion (12) at the lower end of the lower screw rod (11) extends to the lower outer position of the lower rubber sleeve (10), an upper screw rod (7) is clamped inside the upper end of the lower rubber sleeve (10), the upper rubber sleeve (9) is sleeved on the upper screw rod (7), an anti-rotation portion (13) is arranged on the upper screw rod (7), the lower end of the upper rubber sleeve (5) abuts against the anti-rotation portion (13), and the upper screw rod threaded portion (15) at the upper end of the upper screw rod (7) extends to the upper outer position of the upper rubber sleeve (9).

2. The novel vibration reduction mechanism for automobile vacuum pump according to claim 1 is characterized in that: The automobile vacuum pump (1) comprises a vacuum pump body (16) and a mounting seat (17), and a mounting seat slot (6) is arranged on the side of the mounting seat (17).

3. The novel vibration reduction mechanism for automobile vacuum pump according to claim 1 or 2, characterized in that: The novel vibration reduction mechanism of the automobile vacuum pump further comprises a mounting plate (3), a lower screw 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 one side of the lower screw threaded portion (12) passing through the through hole on the mounting plate (3).

4. The novel vibration reduction mechanism for automobile vacuum pump according to claim 2 is characterized in that: The upper rubber sleeve groove (5) of the upper rubber sleeve (9) is clamped in the mounting seat clamping groove (6) of the mounting seat (17), and the upper screw threaded portion (15) of the upper screw (7) is screwed with the fastening nut (4).

5. The novel vibration reduction mechanism for automobile vacuum pump according to claim 2 is characterized in that: The automobile vacuum pump comprises a plurality of mounting seats (17).

6. The novel vibration reduction mechanism for automobile vacuum pump according to claim 1 or 2, characterized in that: The upper screw rod (7) comprises an upper screw rod end (18) and an upper screw rod body (19), and the upper screw rod end (18) and the upper screw rod body (19) are in a T-shaped structure.

7. The novel vibration reduction mechanism for automobile vacuum pump according to claim 1 or 2, characterized in that: The lower screw (11) comprises a lower screw end (20) and a lower screw body (21), and the lower screw end (20) and the lower screw body (21) are in a T-shaped structure.

8. The novel vibration reduction mechanism for automobile vacuum pump according to claim 1 or 2, characterized in that: The anti-rotation portion (13) is configured as a polygonal structure.

9. The novel vibration reduction mechanism for automobile vacuum pump according to claim 1 is characterized in that: Alternatively, an anti-rotation groove is provided at the lower part of the upper rubber sleeve (9), the anti-rotation groove is provided with a structure having the same shape and size as the anti-rotation portion, and the anti-rotation portion (13) is clamped in the anti-rotation groove.

10. The novel vibration reduction mechanism for automobile vacuum pump according to claim 1 or 2, characterized in that: The upper sleeve (8) is inserted into the upper rubber sleeve (9), and the upper sleeve (7) includes an upper sleeve horizontal surface (22) and an upper sleeve vertical portion (23). The upper sleeve horizontal surface (22) and the upper sleeve vertical portion (23) are in a T-shaped structure. The upper sleeve horizontal surface (22) is attached to the upper portion of the upper rubber sleeve (9), and the upper screw (7) passes through the upper sleeve (8).

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