Back blowing mechanism for air pump of automobile air suspension system

Abstract

The utility model relates to the technical field of blowback equipment, and particularly discloses a blowback mechanism for an air pump of an automobile air suspension system, which comprises an electromagnetic valve, a first air hole and a pressure relief hole, the pressure release valve is communicated with the first air hole through a first pipeline, a spring, a pressing block and a second air hole are arranged in the pressure release valve, when the electromagnetic valve is powered on, the electromagnetic valve sends high-pressure airflow to the first pipeline, the pressing block moves in the direction opposite to the acting force of the spring, and the second air hole is opened; a third air hole and a fourth air hole are formed in the drying cylinder, one end of the second pipeline is connected with the outside, the other end of the second pipeline is connected with the third air hole, one end of the third pipeline is connected with the fourth air hole, the other end of the third pipeline is connected with the pressure release valve, and one end of the fourth pipeline is connected with the second air hole; the other end of the fourth pipeline is connected with the motor. The air pump reverse blowing mechanism overcomes the defects that in the prior art, an air pump reverse blowing mechanism is low in reverse blowing safety coefficient and not thorough in reverse blowing.

Description

Technical Field

[0001] This utility model relates to the field of backflushing equipment, and in particular to a backflushing mechanism for an air pump in an automotive air suspension system. Background Technology

[0002] The air suspension system dynamically controls vehicle height, suspension stiffness, and driving comfort by adjusting the air pressure within the air springs (airbags). The air pump (compressor) is the core component of this system, responsible for inflating or deflating the airbags, and its performance directly affects the suspension's response speed and reliability. However, during operation, the air pump is prone to drawing in external dust, moisture, oil, and other contaminants, leading to internal wear, reduced efficiency, and even malfunction. Therefore, a backflushing mechanism is needed to clean the air pump's internal components.

[0003] In existing technologies, air pumps typically clean by connecting to a single high-pressure air source, resulting in poor cleaning performance and susceptibility to interference during the cleaning process, which can lead to hazards. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The problem to be solved by this utility model is to provide a backflush mechanism for an air pump in an automotive air suspension system, so as to overcome the defects of low backflush safety factor and incomplete backflush in the existing air pump backflush mechanism.

[0006] (II) Technical Solution

[0007] To solve the aforementioned technical problem, the first aspect of this utility model provides a backflush mechanism for an air pump in an automotive air suspension system, comprising:

[0008] The solenoid valve has a first air hole and a pressure relief hole.

[0009] A pressure relief valve is connected to the first air hole through a first pipe. The pressure relief valve has a spring, a pressure block, and a second air hole. One end of the spring is connected to the housing of the pressure relief valve, and the other end of the spring is connected to the pressure block. When the solenoid valve is energized, the solenoid valve sends a high-pressure airflow to the first pipe, the pressure block moves in the opposite direction of the spring force, and the second air hole opens.

[0010] The drying cylinder has a third air hole and a fourth air hole. One end of the second pipe is connected to the outside, the other end of the second pipe is connected to the third air hole, one end of the third pipe is connected to the fourth air hole, the other end of the third pipe is connected to the pressure relief valve, one end of the fourth pipe is connected to the second air hole, and the other end of the fourth pipe is connected to the motor.

[0011] As described above, in the backflush mechanism for the air pump of an automotive air suspension system, optionally, the pressure relief hole is connected to one end of the fifth pipe, and the other end of the fifth pipe is connected to the piston. When the solenoid valve is closed, the pressure relief hole releases pressure through the fifth pipe.

[0012] As described above, the backflush mechanism for the air pump of an automotive air suspension system may optionally include a noise reduction cavity between the fourth pipes, the noise reduction cavity being used to reduce noise.

[0013] As described above, the backflush mechanism for the air pump in an automotive air suspension system may optionally include an exhaust port on the motor, through which the exhaust gas from the fourth pipe is discharged.

[0014] As described above, the backflush mechanism for an air pump in an automotive air suspension system may optionally include two drying cylinders connected in series, with the third air vent located on one of the drying cylinders and the fourth air vent located on the other drying cylinder.

[0015] As described above, in the backflush mechanism for an air pump in an automotive air suspension system, the spring optionally returns to its initial position when the solenoid valve is closed.

[0016] (III) Beneficial Effects

[0017] The present invention provides a backflush mechanism for an air pump in an automotive air suspension system, which has the following advantages:

[0018] (1) In this utility model, when the solenoid valve is opened, it inputs high-pressure airflow to the pressure relief valve through the first pipe. The high-pressure airflow drives the pressure block to move, thus opening the pressure relief valve. Simultaneously, the high-pressure airflow can enter through the second pipe, pass through one drying cylinder, and exit from another drying cylinder. After backflushing, the airflow flows into the third pipe, then into the pressure relief valve, and finally into the motor through the fourth pipe, ultimately exiting from the motor's exhaust port. This design, through its uniquely designed air passages, improves the efficiency of backflushing.

[0019] (2) In this invention, when the backflush mechanism needs to be closed, the solenoid valve stops inputting high-pressure airflow to the pressure relief valve, and the pressure relief valve closes. The high-pressure airflow located in the pipeline is discharged into the piston through the fifth pipeline. This improves the safety of the air passage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a side view of a backflush mechanism for an air pump in an automotive air suspension system according to the present invention.

[0022] Figure 2 This is a perspective view of a backflush mechanism for an air pump in an automotive air suspension system according to the present invention.

[0023] Figure 3 This is a second perspective view of a backflush mechanism for an air pump in an automotive air suspension system according to the present invention.

[0024] Figure 4 This is a third perspective view of a backflush mechanism for an air pump in an automotive air suspension system according to the present invention.

[0025] Figure 5 This is a cross-sectional view of a pressure relief valve for a backflush mechanism of an air pump in an automotive air suspension system, according to the present invention.

[0026] Figure 6 This is a cross-sectional view of a solenoid valve for a backflush mechanism of an air pump in an automotive air suspension system, according to this utility model.

[0027] The component names corresponding to the various labels in the figure are as follows: 1. Solenoid valve; 11. First air port; 12. Pressure relief port; 2. Pressure relief valve; 21. First pipe; 22. Spring; 23. Pressure block; 3. Drying cylinder; 31. Third air port; 32. Fourth air port; 33. Second pipe; 34. Third pipe; 35. Fourth pipe; 36. Fifth pipe; 4. Piston; 5. Noise reduction chamber; 6. Exhaust port. Detailed Implementation

[0028] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0029] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0031] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0032] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0033] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0034] See Figures 1 to 6 This invention provides a backflushing mechanism for an air pump in an automotive air suspension system, comprising: a solenoid valve 1, a pressure relief valve 2, a drying cylinder 3, and a motor. The solenoid valve 1 controls the opening and closing of the backflushing mechanism, and can also open the pressure relief valve 2 by supplying high-pressure airflow to it. High-pressure gas from the outside can flow into the drying cylinder 3 and backflush it. The backflushed airflow passes through the pressure relief valve 2 and is discharged from the motor's airflow outlet channel. This airflow design effectively improves the safety of the backflushing process and further enhances the backflushing effect.

[0035] exist Figures 1 to 6 In an optional embodiment, the solenoid valve 1 has a first vent 11 and a pressure relief vent 12. The solenoid valve 1 can input high-pressure airflow into the first vent 11.

[0036] Furthermore, the pressure relief valve 2 is connected to the first air hole 11 through the first pipe 21. The pressure relief valve 2 has a spring 22, a pressure block 23 and a second air hole. One end of the spring 22 is connected to the housing of the pressure relief valve 2, and the other end of the spring 22 is connected to the pressure block 23. When the solenoid valve 1 is energized, the solenoid valve 1 sends a high-pressure airflow to the first pipe 21, and the pressure block 23 moves in the opposite direction of the force of the spring 22, and the second air hole opens.

[0037] Therefore, the pressure relief valve 2 opens under the action of the high-pressure airflow, and the second air hole opens.

[0038] Furthermore, the pressure relief port 12 is connected to one end of the fifth pipe 36, and the other end of the fifth pipe 36 is connected to the piston 4. When the solenoid valve 1 is closed, pressure is released through the pressure relief port 12 via the fifth pipe 36. Air pressure can then be discharged from the piston 4. This design improves the safety of the backflushing mechanism when it is closed.

[0039] Furthermore, the drying cylinder 3 has a third air hole 31 and a fourth air hole 32. One end of the second pipe 33 is connected to the outside, and the other end of the second pipe 33 is connected to the third air hole 31. One end of the third pipe 34 is connected to the fourth air hole 32, and the other end of the third pipe 34 is connected to the pressure relief valve 2. One end of the fourth pipe 35 is connected to the second air hole, and the other end of the fourth pipe 35 is connected to the motor.

[0040] Furthermore, there are two drying cylinders 3 connected in series, with a third air hole 31 provided on one of the drying cylinders 3 and a fourth air hole 32 provided on the other drying cylinder 3.

[0041] Furthermore, a noise reduction cavity 5 is provided between the fourth pipes 35, which is used to reduce noise.

[0042] Furthermore, the motor is equipped with an exhaust port 6, and the fourth pipe 35 discharges gas through the exhaust port 6.

[0043] Furthermore, when solenoid valve 1 is closed, spring 22 returns to its initial position.

[0044] Therefore, the specific steps of this utility model are as follows:

[0045] When solenoid valve 1 is opened, it inputs high-pressure airflow into pressure relief valve 2 through first pipe 21. The high-pressure airflow drives pressure block 23 to move, and pressure relief valve 2 opens. Simultaneously, high-pressure airflow can enter from second pipe 33, pass through one drying cylinder 3, and flow out from another drying cylinder 3. After backflushing, the airflow flows into third pipe 34, then into pressure relief valve 2, and finally into motor through fourth pipe 35, thus being discharged from motor exhaust port 6.

[0046] When the backflush mechanism needs to be closed, solenoid valve 1 stops supplying high-pressure airflow to pressure relief valve 2, and pressure relief valve 2 closes. The high-pressure airflow in the pipeline is discharged into piston 4 through fifth pipe 36. This improves the safety of the air passage.

[0047] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0048] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A backflush mechanism for an air pump in an automotive air suspension system, characterized in that, include: Solenoid valve (1), wherein a first air hole (11) and a pressure relief hole (12) are provided on the solenoid valve (1); Pressure relief valve (2), the pressure relief valve (2) is connected to the first air hole (11) through the first pipe (21), the pressure relief valve (2) has a spring (22), a pressure block (23) and a second air hole, one end of the spring (22) is connected to the housing of the pressure relief valve (2), and the other end of the spring (22) is connected to the pressure block (23). When the solenoid valve (1) is energized, the solenoid valve (1) sends a high-pressure airflow to the first pipe (21), the pressure block (23) moves in the opposite direction of the force of the spring (22), and the second air hole opens; The drying cylinder (3) has a third air hole (31) and a fourth air hole (32). One end of the second pipe (33) is connected to the outside, and the other end of the second pipe (33) is connected to the third air hole (31). One end of the third pipe (34) is connected to the fourth air hole (32), and the other end of the third pipe (34) is connected to the pressure relief valve (2). One end of the fourth pipe (35) is connected to the second air hole, and the other end of the fourth pipe (35) is connected to the motor.

2. The backflush mechanism for an air pump in an automotive air suspension system as described in claim 1, characterized in that, The pressure relief hole (12) is connected to one end of the fifth pipe (36), and the other end of the fifth pipe (36) is connected to the piston (4). When the solenoid valve (1) is closed, the pressure relief hole (12) releases pressure through the fifth pipe (36).

3. The backflush mechanism for an air pump in an automotive air suspension system as described in claim 1, characterized in that, A noise reduction cavity (5) is provided between the fourth pipes (35), and the noise reduction cavity (5) is used to reduce noise.

4. The backflush mechanism for an air pump in an automotive air suspension system as described in claim 1, characterized in that, The motor is equipped with an exhaust port (6), and the gas discharged from the fourth pipe (35) is discharged through the exhaust port (6).

5. The backflush mechanism for an air pump in an automotive air suspension system as described in claim 1, characterized in that, The drying cylinder (3) has two parts, which are connected in series. The third air hole (31) is provided on one of the drying cylinders (3), and the fourth air hole (32) is provided on the other drying cylinder (3).

6. The backflush mechanism for an air pump in an automotive air suspension system as described in claim 1, characterized in that, When the solenoid valve (1) is closed, the spring (22) returns to its initial position.

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