Air valve seat for vacuum booster

Abstract

The utility model relates to the field of air valve seats, and discloses an air valve seat for a vacuum booster, which comprises a valve seat body, the bottom end of the valve seat body is communicated with an air inlet pipe, the inner wall of the air inlet pipe is fixedly connected with a connecting ring, and the valve seat body and the air inlet pipe are connected with the same connecting rod in a penetrating and sliding mode. A top cover is fixedly connected to the top end of the connecting rod, an air outlet hole is formed in the top of the valve seat body, the bottom of the top cover is attached to the air outlet hole in a sealed mode, and a sealing disc is fixedly connected to the bottom end of the connecting rod. The valve seat is easy to use, the sealing disc is automatically opened and closed through the tension spring to control opening and closing of the top cover, the top cover and the sealing disc can be opened at the same time to conduct air inlet and air exhaust at the same time, and the valve seat body can exhaust air in time through the air outlet to reduce the air pressure influence; the filter disc can filter solid impurities in air and prevent the solid impurities from entering the air inlet pipe, and the annular liquid absorption paper can be used for adsorbing moisture in the air for dehumidification.

Description

Technical Field

[0001] The utility model relates to the field of air valve seats, in particular to an air valve seat for a vacuum booster. Background Art

[0002] The utility model with the authorization announcement number: CN208306634U provides an air valve seat for a vacuum booster, which belongs to the technical field of automobile accessories. It solves the problems of poor radial limiting and poor lubrication of the existing air valve seat. The air valve seat for the vacuum booster includes a main body, one end of the main body has an annular boss and this end has a concave cavity, the annular boss and the concave cavity are coaxially arranged with the main body, and the other end of the main body has a convex column coaxially arranged and protruding therefrom, the contact surface of the convex column is a spherical surface, the contact surface of the annular boss is a spherical surface, and the inner wall of the concave cavity is provided with a lubrication groove for accommodating lubricating grease. The utility model has the advantages of good radial limiting effect and good lubrication effect.

[0003] The above utility model patent adopts one-way ventilation, which will cause excessive gas in the valve seat to be unable to be discharged in time, and then cause excessive air pressure in the valve seat to affect the use effect of the vacuum booster. Therefore, a technician in this field provides an air valve seat for a vacuum booster to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide an air valve seat for a vacuum booster to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air valve seat for a vacuum booster, comprising a valve seat body, the bottom end of the valve seat body is connected to an intake pipe, a connecting ring is fixedly connected to the inner wall of the intake pipe, the valve seat body and the intake pipe are slidably connected with the same connecting rod, the top of the connecting rod is fixedly connected to a top cover, an air outlet hole is opened on the top of the valve seat body, and the bottom of the top cover is sealingly fitted with the air outlet hole, the bottom end of the connecting rod is fixedly connected to a sealing disk, and the bottom of the sealing disk is sealingly fitted on the air inlet of the intake pipe, a connecting disk is fixedly sleeved on the outer wall of the connecting rod, a tension spring is sleeved on the outer wall of the connecting rod, the top of the tension spring is fixedly connected to the bottom of the connecting disk, and the bottom of the tension spring is fixedly connected to the top of the connecting ring.

[0006] As a further solution of the utility model: the top cover is located above the connecting disk, and the sealing disk is located below the connecting ring.

[0007] As a further solution of the utility model: a filter plate is embedded in the bottom end of the air intake pipe, and the top of the filter plate is in contact with the air inlet of the air intake pipe.

[0008] As a further solution of the utility model: two threaded tubes are fixedly connected to the outer wall of the air inlet pipe, and a transparent shell is fixedly embedded on the outer wall of the valve seat body.

[0009] As a further solution of the utility model: an annular blotting paper is sleeved on the outer wall of the connecting rod, and the top of the annular blotting paper is in contact with the bottom of the top cover.

[0010] As a further solution of the utility model: an anti-wear ring is sleeved on the outer wall of the connecting rod, and the outer wall of the anti-wear ring is in contact with the inner wall of the connecting ring.

[0011] As a further solution of the utility model: the diameter of the air intake pipe is smaller than the diameter of the valve seat body, and the connecting rod passes through the connecting ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Two threaded tubes can be inserted into screws to install the intake pipe in the car. The bottom end of the intake pipe can be connected to the air booster through a pipeline. The gas reaching the intake pipe from the air booster can lift the sealing plate through air pressure. After the sealing plate is lifted up, the air inlet of the intake pipe will be opened. At this time, the gas will enter the valve seat body, and the tension spring can be stretched after the sealing plate is lifted up. The lifting of the sealing plate will drive the connecting rod and the top cover to rise and discharge the gas from the valve seat body. The gas is discharged through the air outlet to reduce the internal air pressure. When the sealing plate is not under force, the tension spring will rebound and pull the connecting plate down. The descent of the connecting plate will drive the top cover, connecting rod, and sealing plate to drop at the same time to return to the initial state for sealing.

[0014] The utility model is simple to use. The sealing disk adopts a tension spring to automatically open and close and control the switch of the top cover, and the top cover and the sealing disk can be opened at the same time to perform air intake and exhaust work at the same time. The valve seat body can discharge gas in time through the air outlet to reduce the influence of air pressure. The filter disk can filter solid impurities in the air to prevent them from entering the air intake pipe, and the annular absorbent paper can be used to absorb moisture in the air for dehumidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the filter disc in the utility model;

[0017] Figure 3 It is a three-dimensional explosion schematic diagram of the utility model;

[0018] Figure 4 It is a partial three-dimensional schematic diagram of the valve seat body in the utility model.

[0019] In the figure: 1. valve seat body; 2. top cover; 3. transparent shell; 4. air inlet pipe; 5. threaded pipe; 6. filter plate; 7. anti-wear ring; 8. sealing plate; 9. tension spring; 10. connecting plate; 11. connecting rod; 12. annular blotting paper; 13. air outlet; 14. connecting ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 In the embodiment of the utility model, an air valve seat for a vacuum booster includes a valve seat body 1, the bottom end of the valve seat body 1 is connected to an air intake pipe 4, a connecting ring 14 is fixedly connected to the inner wall of the air intake pipe 4, the valve seat body 1 and the air intake pipe 4 are slidably connected to the same connecting rod 11, the top of the connecting rod 11 is fixedly connected to a top cover 2, an air outlet hole 13 is opened on the top of the valve seat body 1, and the bottom of the top cover 2 and the air outlet hole 13 are sealed and fitted, a sealing disk 8 is fixedly connected to the bottom end of the connecting rod 11, and the bottom of the sealing disk 8 is sealed and fitted on the air inlet of the air intake pipe 4, a connecting disk 10 is fixedly sleeved on the outer wall of the connecting rod 11, and a tension spring 9 is sleeved on the outer wall of the connecting rod 11 The top of the tension spring 9 is fixedly connected to the bottom of the connecting disk 10, and the bottom of the tension spring 9 is fixedly connected to the top of the connecting ring 14. The two threaded tubes 5 can be inserted into screws to install the intake pipe 4 in the car. The bottom end of the intake pipe 4 can be connected to the air booster through a pipeline. The gas reaching the intake pipe 4 from the air booster can lift the sealing disk 8 through air pressure. After the sealing disk 8 is lifted, the air inlet of the intake pipe 4 will be opened. At this time, the gas will enter the valve seat body 1, and the tension spring 9 can be stretched after the sealing disk 8 is lifted. The lifting of the sealing disk 8 will drive the connecting rod 11 and the top cover 2 to rise and discharge the gas from the valve seat body 1. The gas is discharged through the air outlet 13 to reduce the internal air pressure.

[0022] In this embodiment, the top cover 2 is located above the connecting disk 10, and the sealing disk 8 is located below the connecting ring 14. When the sealing disk 8 is not subjected to force, the tension spring 9 will rebound and pull the connecting disk 10 down. The descent of the connecting disk 10 will drive the top cover 2, the connecting rod 11, and the sealing disk 8 to descend at the same time and return to the initial state for sealing.

[0023] In this embodiment, a filter plate 6 is embedded at the bottom end of the air intake pipe 4, and the top of the filter plate 6 fits the air inlet of the air intake pipe 4. The gas entering the air intake pipe 4 can be filtered through the filter plate 6. The filter plate 6 can filter solid impurities in the air to prevent them from entering the air intake pipe 4 and affecting the sealing.

[0024] In this embodiment, two threaded tubes 5 are fixedly connected to the outer wall of the air inlet pipe 4 , and a transparent shell 3 is fixedly embedded on the outer wall of the valve seat body 1 .

[0025] In this embodiment, an annular absorbent paper 12 is sleeved on the outer wall of the connecting rod 11, and the top of the annular absorbent paper 12 is in contact with the bottom of the top cover 2. The annular absorbent paper 12 can be used to absorb liquid and filter moisture in the air. A transparent shell 3 is provided on the valve seat body 1, so that the internal condition of the valve seat body 1 can be directly observed to facilitate the troubleshooting of parts problems.

[0026] In this embodiment, an anti-wear ring 7 is sleeved on the outer wall of the connecting rod 11, and the outer wall of the anti-wear ring 7 is in contact with the inner wall of the connecting ring 14. The anti-wear ring 7 is sleeved on the outer wall of the connecting rod 11, so that the friction between the outer wall of the connecting rod 11 and the inner wall of the connecting ring 14 can be eliminated, thereby eliminating the loss of the connecting rod 11.

[0027] In this embodiment, the diameter of the air inlet pipe 4 is smaller than the diameter of the valve seat body 1 , and the connecting rod 11 passes through the connecting ring 14 .

[0028] The working principle of the utility model is as follows: two threaded tubes 5 can be inserted into screws or screws to install the intake pipe 4 in the car, and the bottom end of the intake pipe 4 can be connected with the air booster through a pipeline, and the gas reaching the intake pipe 4 from the air booster can lift the sealing disk 8 through the air pressure, and the sealing disk 8 will open the air inlet of the intake pipe 4 after being lifted up, and the gas will enter the valve seat body 1 at this time, and the sealing disk 8 can stretch the tension spring 9 after being lifted up, and the sealing disk 8 will drive the connecting rod 11 and the top cover 2 to rise and discharge the gas from the valve seat body 1, and the gas will be discharged through the air outlet 13 to reduce the internal air pressure, and when the sealing disk 8 is not under force, the tension spring 9 will rebound and pull The connecting plate 10 descends, and the descent of the connecting plate 10 will drive the top cover 2, the connecting rod 11, and the sealing plate 8 to descend at the same time to restore to the initial state for sealing. The anti-wear ring 7 is sleeved on the outer wall of the connecting rod 11, so that the friction between the outer wall of the connecting rod 11 and the inner wall of the connecting ring 14 can be eliminated, and the loss of the connecting rod 11 can be eliminated. The gas entering the intake pipe 4 can be filtered through the filter plate 6, and the filter plate 6 can filter solid impurities in the air to prevent them from entering the intake pipe 4 and affecting the sealing. The annular absorbent paper 12 can be used to absorb liquid and filter moisture in the air. A transparent shell 3 is set on the valve seat body 1, and the internal condition of the valve seat body 1 can be directly observed to facilitate the troubleshooting of parts problems.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air valve seat for a vacuum booster, comprising a valve seat body (1), characterized in that: The bottom end of the valve seat body (1) is connected to an air inlet pipe (4), a connecting ring (14) is fixedly connected to the inner wall of the air inlet pipe (4), the valve seat body (1) and the air inlet pipe (4) are slidably connected to a same connecting rod (11), the top end of the connecting rod (11) is fixedly connected to a top cover (2), the top of the valve seat body (1) is provided with an air outlet hole (13), and the bottom of the top cover (2) and the air outlet hole (13) are sealed and fitted, the bottom end of the connecting rod (11) is fixedly connected to a sealing disk (8), and the bottom of the sealing disk (8) is sealed and fitted on the air inlet of the air inlet pipe (4), a connecting disk (10) is fixedly sleeved on the outer wall of the connecting rod (11), a tension spring (9) is sleeved on the outer wall of the connecting rod (11), the top end of the tension spring (9) is fixedly connected to the bottom of the connecting disk (10), and the bottom end of the tension spring (9) is fixedly connected to the top of the connecting ring (14).

2. The air valve seat for a vacuum booster according to claim 1, characterized in that: The top cover (2) is located above the connecting disk (10), and the sealing disk (8) is located below the connecting ring (14).

3. The air valve seat for a vacuum booster according to claim 1, characterized in that: A filter plate (6) is embedded at the bottom end of the air intake pipe (4), and the top of the filter plate (6) fits in with the air intake port of the air intake pipe (4).

4. The air valve seat for a vacuum booster according to claim 1, characterized in that: Two threaded tubes (5) are fixedly connected to the outer wall of the air inlet pipe (4), and a transparent shell (3) is fixedly embedded on the outer wall of the valve seat body (1).

5. The air valve seat for a vacuum booster according to claim 1, characterized in that: An annular liquid-absorbing paper (12) is sleeved on the outer wall of the connecting rod (11), and the top of the annular liquid-absorbing paper (12) is in contact with the bottom of the top cover (2).

6. The air valve seat for a vacuum booster according to claim 1, characterized in that: An anti-wear ring (7) is sleeved on the outer wall of the connecting rod (11), and the outer wall of the anti-wear ring (7) is in contact with the inner wall of the connecting ring (14).

7. The air valve seat for a vacuum booster according to claim 1, characterized in that: The diameter of the air inlet pipe (4) is smaller than the diameter of the valve seat body (1), and the connecting rod (11) passes through the connecting ring (14).

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