A vehicle air path control system

Abstract

The utility model relates to the field of vehicle provides a kind of vehicle gas circuit control system, including pump, buffer, air pressure regulating unit and air valve, air valve can be two five-way valves, pump can be door pump. Door pump is used to drive the switch of swing door of vehicle, and door pump includes air chamber and piston, piston separates air chamber into two parts, and forms first air chamber and second air chamber, by filling or discharging gas in first air chamber or second air chamber, the piston can be controlled to move, in turn make the rod on the piston drive swing door to carry out switch action. When vehicle is in static state, air pressure is adjusted to low pressure state by low pressure regulator, in turn, low air pressure control vehicle can be opened or closed door operation;When the door is closed and the vehicle speed is greater than 10km / h, it is adjusted to high pressure state by high pressure bypass, so that the air pressure in the pump of the door is switched from low pressure to high pressure, the door is closed, the top resistance is improved, and the safety of driving and the people in the vehicle is ensured.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, specifically to a vehicle air circuit control system. Background Technology

[0002] Existing buses and coaches use pneumatic outward-swinging doors, which control the expansion and contraction of a pump via an air source to open and close the door. However, existing pneumatic doors operate within a relatively stable air pressure range, resulting in high operational costs. Furthermore, if the required air pressure is not reached, the door may be difficult or impossible to open, leading to issues with ease of use and safety. Utility Model Content

[0003] The purpose of this utility model is to provide a vehicle air circuit control system, which aims to improve the existing vehicle switch control system, which has problems such as sudden opening and closing, and poor stability of the door opening or closing state.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a vehicle air circuit control system, comprising:

[0005] Pump;

[0006] buffer;

[0007] A pressure regulating unit includes a low-pressure regulator and a high-pressure bypass. The input terminal of the low-pressure regulator and the first input terminal of the high-pressure bypass are connected to a gas source. The output terminal of the low-pressure regulator is connected to the second input terminal of the high-pressure bypass. The output terminal of the high-pressure bypass is connected to the input terminal of the buffer.

[0008] An air valve is configured to be connected to the output end of the buffer. The first working end of the air valve is configured to be connected to the rear air inlet of the pump, and the second working end of the air valve is configured to be connected to the front air inlet of the pump.

[0009] As a preferred embodiment of this invention, a pressure switch is also included, which is connected to the first working end of the pump.

[0010] As a preferred embodiment of this invention, a buzzer is also included, which is electrically connected to the pressure switch.

[0011] As a preferred structure of this utility model, it also includes a fixing frame, on which the buffer, the high-pressure bypass and the air valve are disposed and form an integrated structure.

[0012] As a preferred structure of this utility model, an emergency pipeline is provided between the air pipe on the output end of the high-pressure bypass and the air pipe on the second working end of the air valve. The emergency pipeline is provided with a one-way valve to prevent air from entering the pump and at least one emergency switch.

[0013] As a preferred embodiment of this invention, the emergency switch includes an in-vehicle emergency switch and an external emergency switch mounted on the emergency pipeline.

[0014] As a preferred structure of this utility model, it also includes an air supply regulator, wherein the input terminal of the low-pressure regulator and the first input terminal of the high-pressure bypass are connected to the air supply regulator.

[0015] As a preferred embodiment of this invention, the output end of the air supply regulator is provided with a five-way connector.

[0016] As a preferred structure of this utility model, a pressure detector is provided on the pipeline between the five-way connector and the low-pressure regulator or the high-pressure bypass.

[0017] As a preferred structure of this utility model, the air valve is a two-position five-way valve, and the pump is a gate pump.

[0018] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0019] 1. When the vehicle is stationary, the air pressure is adjusted to a low-pressure state by a low-pressure regulator, and the door can be opened or closed by controlling the vehicle's movement through the low air pressure. When the door is closed and the vehicle speed is greater than 10 km / h (the vehicle speed can also be adjusted as needed, such as 5 km / h, 7 km / h, or 8 km / h, etc.), the high-pressure bypass is used to adjust the pressure to a high-pressure state, so that the air pressure in the door pump switches from low pressure to high pressure, making the door closed state stable and increasing the resistance of the door when closed, thus ensuring the safety of driving and the occupants. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the air circuit structure of the vehicle air circuit control system described in this utility model;

[0021] Figure 2 This is a schematic diagram of the integrated structure of the vehicle air circuit control system described in this utility model;

[0022] Figure 3 This is a schematic diagram of the vehicle air circuit control system with an air supply regulator according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Pump;

[0025] 20. Buffer;

[0026] 30. Pressure regulating unit; 301. Low-pressure regulator; 302. High-pressure bypass; 303. Emergency pipeline;

[0027] 3031. One-way valve; 3032. In-vehicle emergency switch; 3033. Out-of-vehicle emergency switch;

[0028] 40. Air valve; 401. Pressure switch; 402. Buzzer;

[0029] 50. Fixture;

[0030] 60. Air supply regulator; 601. Five-way connector; 602. Barometric pressure detector. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0032] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0034] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Please refer to Figure 1As shown, this embodiment provides a vehicle air circuit control system, including a pump 10, a buffer 20, an air pressure regulating unit 30, and an air valve 40. The air valve 40 can be a two-position five-way valve, and the pump 10 can be a door pump 10. The door pump 10 is used to drive the opening and closing of the vehicle's swing door. The door pump 10 includes an air chamber and a piston. The piston divides the air chamber into two parts, forming a first air chamber and a second air chamber (the air inlet of the first air chamber is at the rear end of the pump 10, and the air inlet of the second air chamber is at the front end of the pump 10). By adding or releasing gas into the first or second air chamber, the piston can be moved, thereby causing the rod on the piston to drive the swing door to open and close.

[0036] Specifically, the air pressure regulating unit 30 includes a low-pressure regulator 301 and a high-pressure bypass 302. The input end of the low-pressure regulator 301 and the first input end of the high-pressure bypass 302 are connected to the air source. The output end of the low-pressure regulator 301 is connected to the second input end of the high-pressure bypass 302. The output end of the high-pressure bypass 302 is connected to the input end of the buffer 20. The air valve 40 is connected to the output end of the buffer 20. The first working end of the air valve 40 is connected to the rear air inlet of the pump 10. The second working end of the air valve 40 is connected to the front air inlet of the pump 10.

[0037] When the vehicle is stationary, the air pressure is adjusted to a low-pressure state by the low-pressure regulator 301, and the door can be opened or closed by controlling the vehicle with low air pressure. When the door is closed and the vehicle speed is greater than 10km / h, the high-pressure bypass 302 adjusts to a high-pressure state, so that the air pressure in the door pump 10 switches from low air pressure to high air pressure, so that the door is stable when closed and the top resistance of the door is increased, ensuring the safety of driving and the people in the vehicle.

[0038] The buffer 20 can be a damping buffer valve, which buffers changes in air pressure within the pump 10, resulting in a gradual change and preventing the door from opening and closing rapidly. The opening and closing time can be adjusted as needed, for example, within the range of 2-5 seconds, preferably 2 or 3 seconds. It doesn't necessarily have to be an integer number of seconds; it can be a duration slightly longer than 2 seconds, such as 2.3 seconds. This achieves a smooth door opening and closing, preventing jarring noises and improving passenger comfort and safety.

[0039] Furthermore, the use of a two-position five-way solenoid valve makes door adjustment much more convenient. The two-position five-way solenoid valve employs dual-coil control, with independent coils controlling both opening and closing. This allows for independent control of each coil, resulting in more precise opening and closing actions, eliminating pressure fluctuations, and effectively improving system stability and reliability. In addition, the two-position five-way solenoid valve features a manual operation trigger switch for door adjustment and maintenance, enhancing the convenience of subsequent repairs.

[0040] like Figure 1 As shown, this disclosure also includes a pressure switch 401, which is connected to the first working end of the pump 10. The pressure switch 401 can monitor the changes in air pressure inside the pump 10 in real time, ensuring that an alarm is issued in time in case of abnormality to prevent accidents from happening.

[0041] Furthermore, the alarm device disclosed herein can be a buzzer 402, which is electrically connected to a pressure switch 401. The buzzer 402 can emit a blaring alarm to alert the driver and passengers to safety, allowing them to take timely countermeasures and ensure safe driving.

[0042] like Figure 2 As shown, this disclosure includes a mounting bracket 50 on which the buffer 20, high-pressure bypass 302, and air valve 40 can be mounted, forming an integrated structure. For example, multiple brackets can be used to screw the buffer 20, high-pressure bypass 302, and air valve 40 onto the mounting bracket 50, forming a stable overall structure. Furthermore, the buffer 20, high-pressure bypass 302, and air valve 40 can be connected via air pipes to form a unified structure, facilitating overall installation and enabling quick assembly and disassembly.

[0043] like Figure 1 As shown, an emergency pipeline 303 is provided between the air pipe at the output end of the high-pressure bypass 302 and the air pipe at the second working end of the air valve 40. The emergency pipeline 303 is equipped with a one-way valve 3031 to prevent air from entering the pump 10 and at least one emergency switch. This forms a connection between the second air chamber of the pump 10 and the second working end of the air valve 40. After opening the emergency opening, rapid pressure relief can be achieved to ensure that the vehicle door can be opened quickly in an emergency, thus ensuring passenger safety.

[0044] Furthermore, such as Figure 1As shown, this disclosure allows for the design of two emergency switches: an in-vehicle emergency switch 3032, which can be installed inside the vehicle, and an external emergency switch 3033, which can be installed outside the vehicle. This allows for emergency operation from either inside or outside the vehicle, ensuring a rapid response in emergencies regardless of whether the system is in the vehicle or not, thus improving safety. Furthermore, the design of both in-vehicle and external emergency switches facilitates routine maintenance and inspection, further enhancing the system's reliability and practicality.

[0045] When in use, if the emergency switch 3033 is turned on when the vehicle is moving at low speed or stationary, the second air chamber of the pump 10 can be quickly vented through the emergency pipe 303 to rapidly reduce the air pressure, allowing the doors to be opened manually and ensuring that passengers can evacuate quickly in an emergency.

[0046] When the door pump 10 is deflated, if the emergency switch is turned off, the door will not open or close immediately because a damping buffer valve is installed in the air circuit. Instead, the door will slowly inflate until the air pressure in the door pump 10 returns to normal, ensuring that the door can be closed. This will deactivate the emergency switch and restore the door to normal operation.

[0047] Furthermore, a digital pressure gauge can be designed on the air pipe of the car door. By monitoring the air pressure changes in real time through the cylinder pressure gauge, the status of the vehicle's air circuit control system can be determined. If the value is within the normal range, it indicates that the system is operating well; if the value is abnormal, it is necessary to check and repair it in time to avoid potential risks.

[0048] like Figure 3 As shown, this disclosure designs an air supply regulator 60. The input terminal of the low-pressure regulator 301 and the first input terminal of the high-pressure bypass 302 are connected to the air supply regulator 60. The air supply regulator 60 can provide the required air source and can control and stabilize the pressure of the gas, providing a stable air source and ensuring the stable operation of the air circuit system.

[0049] like Figure 3 As shown, the air supply regulator 60 in this disclosure has a five-way connector 601 at its output end. The first path of the five-way connector 601 is connected to the input end of the low-pressure regulator 301 and the first input end of the high-pressure bypass 302; the second path can be connected to the vehicle's reducer; the third path can be connected to the operating switch in the driver's cab so that the driver can operate the door from the driver's seat; the fourth path is connected to the air horn; and the fifth path is connected to the air outlet of the air supply regulator 60, forming a multi-path air supply network to ensure that each functional module operates independently without interfering with each other, thereby improving the overall coordination and efficiency of the system.

[0050] like Figure 3As shown, a pressure detector 602, such as a PX300 pressure sensor, is installed on the pipeline between the five-way connector 601 and the low-pressure regulator 301 or the high-pressure bypass 302. This detector can detect changes in air pressure to understand the pressure of the vehicle's air circuit control system and display it on the screen in real time for easy monitoring and viewing, thereby improving the convenience and safety of use.

[0051] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model 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 utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A vehicle air circuit control system, characterized in that, include: Pump; buffer; A pressure regulating unit includes a low-pressure regulator and a high-pressure bypass. The input terminal of the low-pressure regulator and the first input terminal of the high-pressure bypass are connected to a gas source. The output terminal of the low-pressure regulator is connected to the second input terminal of the high-pressure bypass. The output terminal of the high-pressure bypass is connected to the input terminal of the buffer. An air valve is configured to be connected to the output end of the buffer. The first working end of the air valve is configured to be connected to the rear air inlet of the pump, and the second working end of the air valve is configured to be connected to the front air inlet of the pump.

2. The vehicle air circuit control system according to claim 1, characterized in that: It also includes a pressure switch, which is connected to the first working end of the pump.

3. The vehicle air circuit control system according to claim 1, characterized in that: It also includes a buzzer, which is electrically connected to the pressure switch.

4. The vehicle air circuit control system according to claim 1, characterized in that, It also includes a mounting frame, on which the buffer, the high-pressure bypass and the air valve are mounted and form an integrated structure.

5. The vehicle air circuit control system according to claim 1, characterized in that, An emergency pipeline is provided between the air pipe on the output end of the high-pressure bypass and the air pipe on the second working end of the air valve. The emergency pipeline is equipped with a one-way valve to prevent air from entering the pump and at least one emergency switch.

6. The vehicle air circuit control system according to claim 5, characterized in that, The emergency switch includes an in-vehicle emergency switch and an external emergency switch installed on the emergency pipeline.

7. The vehicle air circuit control system according to claim 1, characterized in that, It also includes an air supply regulator, wherein the input terminal of the low-pressure regulator and the first input terminal of the high-pressure bypass are connected to the air supply regulator.

8. The vehicle air circuit control system according to claim 1, characterized in that, The output end of the air supply regulator is equipped with a five-way connector.

9. The vehicle air circuit control system according to claim 1, characterized in that, A pressure detector is installed on the pipeline between the five-way connector and the low-pressure regulator or the high-pressure bypass.

10. The vehicle air circuit control system according to claim 1, characterized in that, The air valve is a two-position five-way valve, and the pump is a gate pump.

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