A safety opening and closing system for a vehicle door pump
The vehicle door pump safety opening and closing system, which utilizes a combination of a backup air tank and an electronically controlled integrated valve, solves the problem of doors not being able to remain tightly closed when the air source fails. It enables safe and rapid opening of doors in the event of a malfunction, thereby improving vehicle safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN JIUTAI AUTOMOBILE PARTS MFG CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-14
AI Technical Summary
Existing car door pumps cannot keep the doors tightly closed when the air supply fails, posing a safety hazard. Furthermore, operation of the emergency valve may prevent the doors from opening, especially while the vehicle is in motion.
A safe opening and closing system for automotive door pumps was designed, including components such as a single electrically controlled integrated valve, a one-button door opening valve on the dashboard, a solenoid valve, and an emergency valve. Compressed air is provided by a backup air tank, and combined with an electronic control and mechanical valve core reversing mechanism, the system ensures that the door remains tightly closed when the air supply fails and can be quickly opened in an emergency.
Keep the doors closed in case of gas supply failure to ensure safety, and open the doors quickly if necessary, avoiding problems caused by door malfunction due to solenoid valve failure or insufficient power.
Smart Images

Figure CN224496184U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive door technology, and in particular to a safe opening and closing system for automotive door pumps. Background Technology
[0002] Pneumatic door pumps rely on compressed air to keep the car doors closed. If the air supply fails and pressure is lost while the vehicle is in motion, the doors will not be able to remain tightly closed, which can easily lead to safety accidents. If someone operates the emergency valve to release air while the vehicle is in motion, the door pump will also lose pressure, and the doors will not be able to remain tightly closed, which can also easily lead to safety accidents. This system was designed to solve the above problems and improve the safety performance of the car doors. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide a safe opening and closing system for automotive door pumps.
[0004] One of the objectives of this utility model is achieved through the following technical solution:
[0005] A car door pump safety opening and closing system includes a single electrically controlled integrated valve, a dashboard one-button door opening valve, a first door pump solenoid valve, a second door pump solenoid valve, a middle door interior emergency valve, a middle door exterior emergency valve, a front door interior emergency valve, a front door exterior emergency valve, and a spare air tank.
[0006] The single-electro-controlled integrated valve has an air inlet P port at the bottom center, and P2, P3, R and S interfaces are respectively provided at the four corners of the lower surface of the single-electro-controlled integrated valve. P1, P4, A and B interfaces are respectively provided at the four corners of the upper surface of the single-electro-controlled integrated valve, and P0 and P5 interfaces are provided on the side of the single-electro-controlled integrated valve.
[0007] The P1 interface is connected to the spare air tank; the P2 interface is connected to the air inlet of the front door interior emergency valve and the front door exterior emergency valve; the P3 interface is connected to the air inlet of the middle door interior emergency valve and the middle door exterior emergency valve; the P4 interface is connected to the instrument panel one-button door opening valve; the R interface is connected to the air outlet of the front door interior emergency valve and the front door exterior emergency valve; the S interface is connected to the air outlet of the middle door interior emergency valve and the middle door exterior emergency valve; and the air outlet of the instrument panel one-button door opening valve is connected to the door opening control port of the first door pump solenoid valve and the second door pump solenoid valve.
[0008] Furthermore, the air intake port P is connected to an external air source, and an integrated one-way valve is provided inside the air intake port P.
[0009] Furthermore, both the P0 and P5 interfaces are located inside the single-electro-controlled integrated valve.
[0010] Furthermore, the emergency valve inside the middle door is connected to the emergency valve outside the middle door, and the emergency valve inside the front door is connected to the emergency valve outside the front door.
[0011] Furthermore, the instrument panel one-button door opening valve is a manual two-position three-way valve.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] When the air supply fails, the backup air tank can provide compressed air to the door pump, keeping the door tightly closed. When the vehicle speed is greater than or equal to the set value, the body wiring harness provides continuous power to the coil of the single-electro-controlled integrated valve, causing the valve core to switch and shielding the emergency valve in the air circuit. At this time, even if the emergency valve is operated to release air, the compressed air in the door pump will not be released, and the door will remain tightly closed. When the vehicle is stationary or the speed is less than the set value, the body wiring harness disconnects the power to the coil of the single-electro-controlled integrated valve, causing the valve core to reset. At this time, the function of the emergency valve is restored. Operating the emergency valve to release air can manually open the door. In an emergency, the one-button door opening valve can be operated to switch the door pump solenoid valve, allowing the door to be opened quickly. Even if the vehicle has no power or no air supply, the door can be opened quickly using the power provided by the backup air tank.
[0014] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the shielded air circuit of the emergency valve in this embodiment;
[0016] Figure 2 This is a schematic diagram of the normal air circuit of the emergency valve in this embodiment;
[0017] Figure 3 This is a schematic diagram of the air circuit for the one-button door opening valve on the instrument panel in this embodiment;
[0018] Figure 4 This is a schematic diagram of the overall gas path structure in this embodiment;
[0019] Figure 5 This is a top view of the single-electro-controlled integrated valve in this embodiment;
[0020] Figure 6 This is a bottom view of the single-electro-controlled integrated valve in this embodiment;
[0021] Figure 7 This is a schematic diagram of the disassembled structure of the single-electro-controlled integrated valve in this embodiment.
[0022] In the diagram: 1. Single-electro-controlled integrated valve; 2. Air inlet P port; 3. P1 interface; 4. P2 interface; 5. P3 interface; 6. P4 interface; 7. A interface; 8. B interface; 9. R interface; 10. S interface; 11. P0 interface; 12. P5 interface; 13. Instrument panel one-button door opening valve; 14. First door pump solenoid valve; 15. Second door pump solenoid valve; 16. Middle door interior emergency valve; 17. Middle door exterior emergency valve; 18. Front door interior emergency valve; 19. Front door exterior emergency valve; 20. Spare air tank. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0026] Please see Figures 1 to 7 The present invention provides the following technical solution:
[0027] A car door pump safety opening and closing system includes a single electrically controlled integrated valve 1, a dashboard one-button door opening valve 13, a first door pump solenoid valve 14, a second door pump solenoid valve 15, a middle door interior emergency valve 16, a middle door exterior emergency valve 17, a front door interior emergency valve 18, a front door exterior emergency valve 19, and a spare air tank 20.
[0028] The single-electro-controlled integrated valve 1 has an air inlet P port 2 at the bottom center, and P2 interface 4, P3 interface 5, R interface 9 and S interface 10 are respectively provided at the four corners of the lower surface of the single-electro-controlled integrated valve 1. P1 interface 3, P4 interface 6, A interface 7 and B interface 8 are respectively provided at the four corners of the upper surface of the single-electro-controlled integrated valve 1. P0 interface 11 and P5 interface 12 are respectively provided on the side of the single-electro-controlled integrated valve 1.
[0029] P1 interface 3 is connected to the backup air tank 20, which provides compressed air to the door pump to keep the doors closed in case of external air source failure. P2 interface 4 is connected to the air inlets of the front door interior emergency valve 18 and the front door exterior emergency valve 19. P3 interface 5 is connected to the air inlets of the middle door interior emergency valve 16 and the middle door exterior emergency valve 17. When the vehicle speed is greater than or equal to a set value, the body wiring harness provides continuous power to the coil of the single electronically controlled integrated valve 1, causing the valve core to switch and shielding the emergency valve in the air circuit (see appendix). Figure 1 The P4 interface 6 is connected to the instrument panel one-touch door opening valve 13, the R interface 9 is connected to the air outlet of the front door interior emergency valve 18 and the front door exterior emergency valve 19, the S interface 10 is connected to the air outlet of the middle door interior emergency valve 16 and the middle door exterior emergency valve 17, and the air outlet of the instrument panel one-touch door opening valve 13 is connected to the door opening control port of the first door pump solenoid valve 14 and the second door pump solenoid valve 15. In an emergency, the instrument panel one-touch door opening valve 13 can be operated to switch the first door pump solenoid valve 14 and the second door pump solenoid valve 15, so that the door can be opened quickly.
[0030] The intake port P2 is connected to an external air source, and the intake port P2 is equipped with an integrated one-way valve, which allows air to enter only through the intake port P2.
[0031] Both P0 interface 11 and P5 interface 12 are located inside the single-electric integrated valve 1. When the coil of the single-electric integrated valve 1 is not energized, R interface 9 is connected to B interface 8, and S interface 10 is connected to A interface 7, while P0 interface 11 is not connected. At this time, operating the emergency valve can release the compressed air in the door pump. However, when the coil of the single-electric integrated valve 1 is energized, P0 interface 11 is connected to B interface 8 and A interface 7, while R interface 9 and S interface 10 are not connected. The emergency valve will be shielded. At this time, operating the emergency valve cannot release the compressed air in the door pump, thus keeping the door tightly closed.
[0032] The emergency valve 16 inside the middle door is connected to the emergency valve 17 outside the middle door, and the emergency valve 18 inside the front door is connected to the emergency valve 19 outside the front door.
[0033] The dashboard one-touch door opening valve 13 is a manual two-position three-way valve that does not require electric drive, completely avoiding the risks of coil burnout, circuit failure, or signal interference of solenoid valves. It can still be physically operated when the vehicle is powered off, ensuring the door unlocking capability in emergency situations.
[0034] Working principle: When in use, this utility model can provide compressed air to the first door pump solenoid valve 14 and the second door pump solenoid valve 15 when the air source fails, so as to keep the door tightly closed.
[0035] When the vehicle speed is greater than or equal to the set value, the body wiring harness provides continuous power to the coil of the single electronically controlled integrated valve 1, causing the valve core to switch. At this time, the P0 interface 11 of the single electronically controlled integrated valve 1 is connected to the B interface 8 and the A interface 7, while the R interface 9 and the S interface 10 are not connected. This shields the emergency valves 16 inside the middle door, 17 outside the middle door, 18 inside the front door, and 19 outside the front door in the air circuit. Even if the emergency valves 16 inside the middle door, 17 outside the middle door, 18 inside the front door, and 19 outside the front door are operated to release air, the compressed air in the first door pump solenoid valve 14 and the second door pump solenoid valve 15 will not be released, and the doors will remain tightly closed.
[0036] When the vehicle is stationary or its speed is less than the set value, the power supply to the coil of the single-electric integrated valve 1 in the body wiring harness is disconnected, causing the valve core to reset. At this time, R interface 9 and B interface 8, S interface 10 and A interface 7 are connected, while P0 interface 11 is disconnected. The functions of the emergency valve 16 inside the middle door, the emergency valve 17 outside the middle door, the emergency valve 18 inside the front door, and the emergency valve 19 outside the front door are restored. By operating the emergency valve 16 inside the middle door, the emergency valve 17 outside the middle door, the emergency valve 18 inside the front door, and the emergency valve 19 outside the front door to release air, the door can be opened manually.
[0037] In addition, in an emergency, the one-button door opening valve 13 on the dashboard can be operated to switch the first door pump solenoid valve 14 and the second door pump solenoid valve 15, which can quickly open the door. Thus, even if the vehicle is without power or air supply, the door can be quickly opened with the power provided by the backup air tank 20.
[0038] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A safety opening and closing system for an automotive door pump, characterized in that: Includes a single-electric integrated valve (1), a one-button door opening valve on the instrument panel (13), a first door pump solenoid valve (14), a second door pump solenoid valve (15), an emergency valve inside the middle door (16), an emergency valve outside the middle door (17), an emergency valve inside the front door (18), an emergency valve outside the front door (19), and a spare air tank (20). The single-electro-controlled integrated valve (1) has an air inlet P port (2) at the bottom center, and P2 interface (4), P3 interface (5), R interface (9) and S interface (10) are respectively provided at the four corners of the lower surface of the single-electro-controlled integrated valve (1). P1 interface (3), P4 interface (6), A interface (7) and B interface (8) are respectively provided at the four corners of the upper surface of the single-electro-controlled integrated valve (1). P0 interface (11) and P5 interface (12) are respectively provided on the side of the single-electro-controlled integrated valve (1). The P1 interface (3) is connected to the spare air tank (20), the P2 interface (4) is connected to the air inlet of the front door interior emergency valve (18) and the front door exterior emergency valve (19), the P3 interface (5) is connected to the air inlet of the middle door interior emergency valve (16) and the middle door exterior emergency valve (17), the P4 interface (6) is connected to the instrument panel one-button door opening valve (13), the R interface (9) is connected to the air outlet of the front door interior emergency valve (18) and the front door exterior emergency valve (19), the S interface (10) is connected to the air outlet of the middle door interior emergency valve (16) and the middle door exterior emergency valve (17), and the air outlet of the instrument panel one-button door opening valve (13) is connected to the door opening control port of the first door pump solenoid valve (14) and the second door pump solenoid valve (15).
2. The automotive door pump safety opening and closing system as described in claim 1, characterized in that: The air inlet P port (2) is connected to an external air source, and an integrated one-way valve is provided inside the air inlet P port (2).
3. The automotive door pump safety opening and closing system as described in claim 1, characterized in that: Both the P0 interface (11) and the P5 interface (12) are located inside the single-electro-controlled integrated valve (1).
4. The automotive door pump safety opening and closing system as described in claim 1, characterized in that: The emergency valve (16) inside the middle door and the emergency valve (17) outside the middle door are connected, and the emergency valve (18) inside the front door and the emergency valve (19) outside the front door are connected.
5. The automotive door pump safety opening and closing system as described in claim 1, characterized in that: The instrument panel one-button door opening valve (13) is a manual two-position three-way valve.