Device for prolonging service life of air bag of commercial vehicle

Abstract

The utility model discloses a device for prolonging the service life of an air bag of a commercial vehicle, and relates to the technical field of air bag lifting of commercial vehicles. The utility model can ensure that the lifting air bag can be completely lifted and the rubber part of the air bag cannot be excessively extruded and folded, can effectively prolong the service life of the lifting air bag of the commercial vehicle, reduces the maintenance cost of a lifting bridge user, reduces the total carbon emission of the industry, has excellent performance and low cost, and can effectively prolong the service life of the lifting air bag of the commercial vehicle.

Description

Technical Field

[0001] This utility model relates to the field of commercial vehicle airbag technology, specifically to a device for improving the lifespan of commercial vehicle airbags. Background Technology

[0002] In commercial vehicles, the lift airbag is a key component of the air suspension system, primarily used to dynamically adjust vehicle height to improve ride comfort and handling performance. Its core function is to raise and lower the axle through changes in air pressure.

[0003] With the widespread adoption of lift axle technology in commercial vehicle tractors and trailers, the market share is increasing. After lifting, the rubber parts of the lift axle airbags may become excessively folded, which seriously affects the service life of the lift axle airbags and leads to increased maintenance costs for users. To address this, we propose a device to extend the service life of commercial vehicle airbags. Utility Model Content

[0004] The purpose of this invention is to provide a device for improving the lifespan of airbags in commercial vehicles in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A device for improving the lifespan of commercial vehicle airbags includes: a pressure limiting valve, a quick-release valve, and a solenoid valve. The input side of the pressure limiting valve is connected to the vehicle's air source, the output side of the pressure limiting valve is connected to the input side of the quick-release valve, and the output side of the quick-release valve is connected to the solenoid valve.

[0007] Furthermore, silencers are installed on both the input and output sides of the pressure relief valve, the quick-release valve, and the solenoid valve.

[0008] Furthermore, pressure gauges are installed on the upper ends of the pressure relief valve, the quick-release valve, and the solenoid valve.

[0009] Furthermore, the lower ends of the pressure relief valve, the quick-release valve, and the solenoid valve are equipped with support plates, and the upper end of the support plate is provided with a recess, in which the lower ends of the pressure relief valve, the quick-release valve, and the solenoid valve are situated.

[0010] Furthermore, the pressure of the pressure relief valve is 0.5 (+0.1 / -0.2) BAR.

[0011] Furthermore, the pressure of the pressure relief valve is 0.7 (±0.1) BAR.

[0012] Furthermore, the output of the pressure relief valve is divided into two paths, one of which is connected to the solenoid valve, and the other is used for venting.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention ensures that the airbag can be fully lifted without excessively squeezing or folding the rubber part of the airbag, effectively improving the lifespan of commercial vehicle airbags, reducing maintenance costs for airbag users, and lowering the industry's total carbon emissions. It is also high-performance and low-cost, effectively improving the lifespan of commercial vehicle airbags. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of Embodiment 1 of this utility model;

[0016] Figure 2 This is a schematic diagram of the operation of Embodiment 1 of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of Embodiment 2 of this utility model;

[0018] Figure 4 This is a schematic diagram of the operation of Embodiment 2 of this utility model.

[0019] Reference numerals: 10, pressure relief valve; 20, quick release valve; 30, solenoid valve; 40, silencer; 50, pressure gauge; 60, support plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] This utility model provides a device for improving the lifespan of commercial vehicle airbags, including: a pressure limiting valve 10, a quick-release valve 20 and a solenoid valve 30. The input side of the pressure limiting valve 10 is connected to the vehicle's air source, the output side of the pressure limiting valve 10 is connected to the input side of the quick-release valve 20, and the output side of the quick-release valve 20 is connected to the solenoid valve 30.

[0022] The pressure relief valve 10 automatically opens to release air or unload when the system pressure exceeds the safe range by setting a pressure threshold, thus preventing equipment damage due to overpressure; the quick release valve 20 can adjust the ratio of input to output air pressure; after inflation is completed, the solenoid valve 30 will close the air path.

[0023] In this embodiment, preferably, silencers 40 are installed on both the input and output sides of the pressure relief valve 10, the quick release valve 20, and the solenoid valve 30; the silencers 40 can achieve the purpose of noise reduction, thereby avoiding noise.

[0024] In this embodiment, preferably, pressure gauges 50 are installed on the upper ends of the pressure relief valve 10, the quick release valve 20, and the solenoid valve 30; under the action of the pressure gauges 50, the real-time pressure inside the pressure relief valve 10, the quick release valve 20, and the solenoid valve 30 can be monitored.

[0025] In this embodiment, preferably, a support plate 60 is installed at the lower end of the pressure relief valve 10, the quick-release valve 20, and the solenoid valve 30, and a groove is formed at the upper end of the support plate 60, with the lower ends of the pressure relief valve 10, the quick-release valve 20, and the solenoid valve 30 resting in the groove. Under the action of the support plate 60, the pressure relief valve 10, the quick-release valve 20, and the solenoid valve 30 can be supported. Under the action of the groove, the installation stability of the pressure relief valve 10, the quick-release valve 20, and the solenoid valve 30 can be guaranteed, thereby ensuring the performance of the pressure relief valve 10, the quick-release valve 20, and the solenoid valve 30.

[0026] Example 1

[0027] Reference Figure 1-2 In the first embodiment of this utility model, the pressure limiting valve 10 draws air from the vehicle's air reservoir. The input side of the pressure limiting valve 10 is connected to the vehicle's air source. The pressure is released through the pressure limiting valve 10, adjusting the pressure from 8.5 / 10 BAR to 0.7 (±0.1) BAR. The pressure is then output through the output side of the pressure limiting valve 10 and enters the quick-release valve 20. The quick-release valve 20 is connected to the solenoid valve 30. When the pressure exceeds 0.7 BAR, air is released from the output side of the solenoid valve 30. When the internal pressure of the pressure limiting valve 10 is 0.7 BAR, the internal pressure of the pressure limiting valve 10 is in a balanced state and no more air is released. At this time, the lifting airbag retains a pressure of 0.7 BAR. This pressure can ensure that the lifting airbag can be fully lifted without excessively squeezing and folding the rubber part of the airbag, thereby improving the life of the lifting airbag.

[0028] Example 2

[0029] Reference Figure 3-4 This is the second embodiment of the present invention, which is based on the previous embodiment and differs from the previous embodiment in that:

[0030] The pressure relief valve 10 has two outputs. One output is connected to the solenoid valve 30, and the other output is used for venting. The pressure relief valve 10 draws air from the vehicle's air reservoir. The input side of the pressure relief valve 10 is connected to the vehicle's air source. The pressure is released through the pressure relief valve 10, adjusting the pressure from 8.5 / 10 BAR to 0.5 (+0.1 / -0.2) BAR. The pressure is then output through the output side of the pressure relief valve 10. The pressure relief valve 10 is connected to the solenoid valve 30. When the airbag is raised, the air is vented through the other output of the pressure relief valve 10. When the pressure reaches 0.5 (+0.1 / -0.2) BAR, the input side of the pressure relief valve 10 and the output side connected to the solenoid valve 30 are in equilibrium, and no more air is vented. At this time, the airbag is left with a pressure of 0.5 (+0.1 / -0.2) BAR. This pressure ensures that the airbag can be fully raised without excessively squeezing and folding the rubber part of the airbag, thereby improving the life of the airbag.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for improving the lifespan of commercial vehicle airbags, characterized in that, include: The pressure limiting valve (10), the quick release valve (20), and the solenoid valve (30) are provided. The input side of the pressure limiting valve (10) is connected to the vehicle air source, the output side of the pressure limiting valve (10) is connected to the input side of the quick release valve (20), and the output side of the quick release valve (20) is connected to the solenoid valve (30).

2. The device for improving the lifespan of commercial vehicle airbags according to claim 1, characterized in that: The input and output sides of the pressure relief valve (10), the quick release valve (20), and the solenoid valve (30) are all equipped with silencers (40).

3. The device for improving the lifespan of commercial vehicle airbags according to claim 1, characterized in that: Pressure gauges (50) are installed on the upper ends of the pressure relief valve (10), the quick release valve (20), and the solenoid valve (30).

4. The device for improving the lifespan of commercial vehicle airbags according to claim 1, characterized in that: The lower ends of the pressure relief valve (10), the quick release valve (20) and the solenoid valve (30) are equipped with support plates (60), and the upper end of the support plate (60) is provided with a sink groove, and the lower ends of the pressure relief valve (10), the quick release valve (20) and the solenoid valve (30) are located in the sink groove.

5. The device for improving the lifespan of commercial vehicle airbags according to claim 1, characterized in that: The pressure of the pressure relief valve (10) is 0.5 (+0.1 / -0.2) BAR.

6. The device for improving the lifespan of commercial vehicle airbags according to claim 1, characterized in that: The pressure of the pressure relief valve (10) is 0.7 (±0.1) BAR.

7. The device for improving the lifespan of commercial vehicle airbags according to claim 1, characterized in that: The output of the pressure relief valve (10) is divided into two paths, one of which is connected to the solenoid valve (30), and the other is used for exhaust.

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