Fixed air suspension inflating equipment

Abstract

The utility model discloses fixed air suspension inflation equipment which comprises a filter unit, a pressure detection switch, a regenerative dryer, a pressure regulating valve, a pressurizing unit, a one-way valve, an air storage tank unit, a high-pressure inflation unit, a low-pressure inflation unit and a quick inflation unit. Air in the air source is divided into two paths after passing through the regenerative dryer, one path of air enters the air storage tank unit through the pressure regulating valve, the pressurization unit and the one-way valve and then is connected with the high-pressure inflation unit and the low-pressure inflation unit, and the other path of air passes through the rapid inflation unit. And the high-pressure inflation unit, the low-pressure inflation unit and the quick inflation unit are all communicated with the through-wall connecting pipe fitting through pipelines and then are connected with the filling gun. By arranging the pressurizing unit, the air storage tank unit, the high-pressure air inflation unit, the low-pressure air inflation unit and the rapid air inflation unit, the air suspension air inflation equipment capable of providing three air inflation modes of high-pressure air inflation, low-pressure air inflation and rapid direct air inflation is achieved, and the adaptability of the air inflation equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inflation equipment, in particular to a fixed air suspension inflation equipment. Background Art

[0002] As the technology of air suspension becomes more and more mature, it is applied to more vehicles. At present, the air suspension system of vehicles is mostly inflated by the vehicle's own air pump or by manual inflation. The inert gas in the gas cylinder is also used to inflate the vehicle's air suspension. When the vehicle's own air pump is used to inflate the vehicle suspension, the vehicle suspension can only be inflated after the vehicle is assembled off the line, which increases the difficulty of assembly on the production line; when the vehicle suspension is inflated by manual inflation, there are certain requirements for the pressure of the gas cylinder, and the inert gas used is relatively expensive, the requirements for operation are also relatively high, it is not convenient to adjust, and the inflation efficiency is low; and the manual inflation method is not convenient for real-time monitoring of the inflation quality. It can be simply applied during trial production, but it is not conducive to mass production operations on the automobile assembly line.

[0003] For this purpose, online inflation equipment has also been developed. For example, the Chinese patent document with the authorization announcement number CN 211519169 U discloses a vehicle air suspension auxiliary inflation device, which realizes the inflation of the vehicle body after pressurizing the compressed air with a booster pump by setting an air filter device, an air drying device, a booster pump, an accumulator, a pressure reducing device, a filling valve, a pressure stabilizing system, a through-wall filling valve and a filling gun, thereby greatly improving the inflation efficiency. However, this technical solution still has the following defects. In order to meet the needs of different production stages and tests and ensure the performance and safety of the air suspension system, when inflating, it may be necessary to adopt three different inflation modes: high-pressure inflation, low-pressure inflation and fast direct inflation. However, the existing equipment cannot well correspond to the needs of realizing these three inflation modes. The specific characteristics of the three inflation modes are as follows:

[0004] (1) High-pressure inflation:

[0005] Purpose: The high pressure inflation mode is used to test the performance of the air suspension system at a higher working pressure to ensure that the system can work properly under the load conditions in actual use.

[0006] Advantages: High-pressure inflation can simulate the performance of air suspension under actual road conditions, ensuring the performance and durability of components such as air springs and shock absorbers under high loads.

[0007] (2) Low-pressure inflation:

[0008] Purpose: The low pressure charging mode may be used to initially test the leak tightness and basic functionality of the air springs and air supply unit to ensure that the system can operate properly at lower pressures.

[0009] Advantages: Inflating at lower pressures reduces stress on the air spring and associated components, reducing the risk of damage, while allowing the system to be tested at low loads.

[0010] (3) Quick and direct inflation:

[0011] Purpose: The fast direct inflation mode is mainly used to quickly fill air springs on the production line to shorten assembly time and improve production efficiency.

[0012] Advantages: This mode can quickly reach the required air pressure and is suitable for rapid inflation of air springs during mass production.

[0013] The choice of these three modes depends on the specific needs and test purposes of the production process. Fast and direct inflation helps improve production efficiency, low-pressure inflation helps preliminary detection and protect the system, and high-pressure inflation ensures the reliability and performance of the system in actual use. Through the comprehensive application of these three modes, the quality and performance of the air suspension system can be ensured during the production and assembly process.

[0014] Therefore, it is necessary to develop an air suspension inflation device that can realize these three inflation modes. Utility Model Content

[0015] The utility model aims to address the deficiencies in the prior art and to provide an air suspension inflation device capable of achieving three inflation modes: high-pressure inflation, low-pressure inflation and rapid direct inflation.

[0016] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0017] A fixed air suspension inflation device comprises a filter unit, a pressure detection switch, a regenerative dryer, a pressure regulating valve, a boosting unit, a non-return valve, an air storage tank unit, a high-pressure inflation unit, a low-pressure inflation unit, a rapid inflation unit, a pressure relief valve, a pressure gauge, a through-wall connecting pipe fitting and a filling gun; air in an air source is divided into two paths after passing through the filter unit, the pressure detection switch and the regenerative dryer in sequence, one of which enters the air storage tank unit through the pressure regulating valve, the boosting unit and the non-return valve, and the air storage tank unit is respectively connected to the high-pressure inflation unit and the low-pressure inflation unit, and the other air passes through the rapid inflation unit; the high-pressure inflation unit, the low-pressure inflation unit and the rapid inflation unit are all connected to the through-wall connecting pipe fitting through pipelines, a pressure relief valve and a pressure gauge are arranged on the rear pipeline of the rapid inflation unit, and the through-wall connecting pipe fitting is connected to the filling gun.

[0018] Preferably, the boosting unit includes a boosting pump, a speed regulating valve and an air supply valve.

[0019] Preferably, the gas storage tank unit includes a gas storage tank, a ball valve, a manual air release valve, a high-pressure pressure gauge, a pressure switch and a gas storage safety valve.

[0020] Preferably, the high-pressure inflation unit includes a high-pressure precision pressure regulating valve, a high-pressure safety valve, a high-pressure inflation pressure gauge and a high-pressure cut-off valve.

[0021] Preferably, the low-pressure inflation unit includes a low-pressure precision pressure regulating valve, a low-pressure inflation pressure gauge, a low-pressure cut-off valve and a low-pressure one-way valve.

[0022] Preferably, the fast-filling unit includes a fast-filling pressure regulating valve and a fast-filling valve.

[0023] Preferably, it also includes a pressure sensor and a maintenance and deflation hand valve arranged between the quick inflation unit and the through-wall connecting pipe fitting.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The utility model realizes air suspension inflating equipment that can provide three inflation modes: high-pressure inflation, low-pressure inflation and rapid direct inflation by arranging a booster unit, an air tank unit, a high-pressure inflation unit, a low-pressure inflation unit and a rapid inflation unit, thereby improving the adaptability of the inflating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is the structural principle diagram of the fixed air suspension inflation device.

[0028] Description of reference numerals:

[0029] 1. Air source; 2. Filter unit; 3. Pressure detection switch; 4. Regenerative dryer; 5. Pressure regulating valve; 6. Booster unit; 61. Booster pump; 62. Speed ​​regulating valve; 63. Air supply valve; 7. Check valve;

[0030] 8. Gas storage tank unit; 81. Gas storage tank; 82. Ball valve; 83. Manual air release valve; 84. High pressure gauge; 85. Pressure switch; 86. Gas storage safety valve;

[0031] 9. High-pressure charging unit; 91. High-pressure precision pressure regulating valve; 92. High-pressure safety valve; 93. High-pressure charging pressure gauge; 94. High-pressure cut-off valve;

[0032] 10. Low-pressure inflation unit; 101. Low-pressure precision pressure regulating valve; 102. Low-pressure inflation pressure gauge; 103. Low-pressure cut-off valve; 104. Low-pressure one-way valve;

[0033] 11. Quick filling unit; 111. Quick filling pressure regulating valve; 112. Quick filling valve;

[0034] 12. Pressure relief valve; 13. Pressure gauge; 14. Pressure sensor; 15. Maintenance venting hand valve; 16. Through-wall connecting pipe fittings; 17. Filling gun. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] like Figure 1 As shown, a fixed air suspension inflation device comprises a filter unit 2, a pressure detection switch 3, a regenerative dryer 4, a pressure regulating valve 5, a pressurizing unit 6, a one-way valve 7, an air storage tank unit 8, a high-pressure inflation unit 9, a low-pressure inflation unit 10, a fast inflation unit 11, a pressure relief valve 12, a pressure gauge 13, a through-wall connecting pipe 16 and a filling gun 17; the air in the air source 1 passes through the filter unit 2, the pressure detection switch 3, and the regenerative dryer 4 in sequence and is divided into two paths, one of which passes through the pressure regulating valve 5, the pressurizing unit 6, the one-way valve 7, the air storage tank unit 8, the high-pressure inflation unit 9, the low-pressure inflation unit 10, the fast inflation unit 11, the pressure relief valve 12, the pressure gauge 13, the through-wall connecting pipe 16 and the ... The pressure unit 6 and the one-way valve 7 enter the air tank unit 8, and the air tank unit 8 is respectively connected to the high-pressure air charging unit 9 and the low-pressure air charging unit 10, and the other air passes through the fast air charging unit 11; the high-pressure air charging unit 9, the low-pressure air charging unit 10 and the fast air charging unit 11 are connected to the through-wall connecting pipe 16 through pipelines, and a pressure relief valve 12 and a pressure gauge 13 are arranged on the rear pipeline of the fast air charging unit 11. When the inflation pressure is higher than the set value, part of the pressure can be automatically relieved, and the through-wall connecting pipe 16 is connected to the filling gun 17. The boosting unit 6 includes a boosting pump 61, a speed regulating valve 62 and an air supply valve 63. The air supply valve 63 controls the start and stop of the boosting pump 61, and the speed regulating valve 62 controls the inflation speed of the boosting pump 61. The air from the gas source 1 passes through the filter unit 2 and then the regenerative dryer 4 to complete the filtration, degreasing and drying of the gas source 1. Then, the air passes through the pressure regulating valve 5, the speed regulating valve 62 and the air supply valve 63, and enters the booster pump 61 to boost the gas. After reaching the set value, the booster pump 61 stops working. At this time, the gas storage tank 81 is filled with high-pressure gas, and the one-way valve 7 prevents the high-pressure gas from flowing back. The use of the regenerative dryer 4 can achieve rapid drying of the air, and the dryer is reusable without frequent replacement of the desiccant. The through-wall connecting pipe 16 realizes the pipeline connection between the equipment body and the inflation gun 17, and can be modularly combined to connect multiple inflation guns 17.

[0037] The gas storage tank unit 8 includes a gas storage tank 81, a ball valve 82, a manual air release valve 83, a high pressure gauge 84, a pressure switch 85 and a gas storage safety valve 86. When the pressure of the gas storage tank 81 reaches a set value, the pressure switch 85 sends a signal to automatically stop the booster pump 61.

[0038] The high-pressure inflation unit 9 includes a high-pressure precision pressure regulating valve 91 , a high-pressure safety valve 92 , a high-pressure inflation pressure gauge 93 and a high-pressure cut-off valve 94 .

[0039] The low-pressure inflation unit 10 includes a low-pressure precision pressure regulating valve 101 , a low-pressure inflation pressure gauge 102 , a low-pressure cut-off valve 103 and a low-pressure one-way valve 104 .

[0040] The fast-filling unit 11 includes a fast-filling pressure regulating valve 111 and a fast-filling valve 112 .

[0041] The fixed air suspension inflation device also includes a pressure sensor 14 and a maintenance deflation hand valve 15 arranged between the fast inflation unit 11 and the through-wall connecting pipe 16. The pressure sensor 14 is used to detect the air pressure value after inflation and feed it back to the electrical control center to record the final inflation effect. The device also includes a fast charging control solenoid valve and a gun control solenoid valve, which are used to control the fast charging valve 112 and the inflation valve of the filling gun 17 respectively.

[0042] When the equipment adopts the high-pressure inflation mode, the high-pressure shut-off valve 94 is opened, and the air is inflated into the air suspension gas tank and stabilized to the precise set high-pressure value through the high-pressure precision pressure regulating valve 91, the high-pressure safety valve 92, the high-pressure inflation pressure gauge 93, the high-pressure shut-off valve 94, the through-wall connecting pipe 16, and the filling gun 17.

[0043] When the equipment adopts the low-pressure inflation mode, the low-pressure cut-off valve 103 is opened, and the air is inflated into the air suspension tank through the low-pressure precision pressure regulating valve 101, the low-pressure inflation pressure gauge 102, the low-pressure cut-off valve 103, the low-pressure check valve 104, the through-wall connecting pipe 16, and the filling gun 17 and stabilized to the precise set low pressure value.

[0044] When the device adopts the fast inflation mode, the fast inflation valve 112 is opened, and the air is quickly inflated through the fast inflation unit 11, the through-wall connecting pipe 16, and the filling gun 17, so that the air suspension gas tank is quickly filled with gas.

[0045] The use of high-pressure precision pressure regulating valve 91 and low-pressure precision pressure regulating valve 101 corresponding to different air pressure ranges can improve the control accuracy of the set air pressure value.

[0046] The above embodiments of the utility model are described in detail through examples, but the contents described are only exemplary embodiments of the utility model embodiments and cannot be considered to limit the scope of implementation of the utility model embodiments. The protection scope of the utility model embodiments is defined by the claims. Anyone who utilizes the technical solutions described in the utility model embodiments, or who is inspired by the technical solutions of the utility model embodiments, designs similar technical solutions within the essence and protection scope of the utility model embodiments to achieve the above technical effects, or who makes equal changes and improvements to the scope of application, shall still be included in the protection scope of the patent coverage of the utility model embodiments.

Claims

1. A fixed air suspension inflator, characterized in that: The invention comprises a filter unit (2), a pressure detection switch (3), a regenerative dryer (4), a pressure regulating valve (5), a pressure boosting unit (6), a check valve (7), an air storage tank unit (8), a high-pressure air charging unit (9), a low-pressure air charging unit (10), a quick air charging unit (11), a pressure relief valve (12), a pressure gauge (13), a through-wall connecting pipe (16) and a filling gun (17); air in an air source (1) passes through the filter unit (2), the pressure detection switch (3) and the regenerative dryer (4) in sequence and is then divided into two paths, one of which is air-conditioned by a pressure regulating valve. The air enters the air storage tank unit (8) through the valve (5), the booster unit (6), and the one-way valve (7), and the air storage tank unit (8) is then respectively connected to the high-pressure air charging unit (9) and the low-pressure air charging unit (10), and the other air passes through the quick air charging unit (11); the high-pressure air charging unit (9), the low-pressure air charging unit (10), and the quick air charging unit (11) are all connected to the through-wall connecting pipe (16) through pipelines, and a pressure relief valve (12) and a pressure gauge (13) are provided on the rear pipeline of the quick air charging unit (11), and the through-wall connecting pipe (16) is connected to the filling gun (17).

2. The fixed air suspension inflator according to claim 1, characterized in that: The boosting unit (6) comprises a boosting pump (61), a speed regulating valve (62) and an air supply valve (63).

3. The fixed air suspension inflator according to claim 1, characterized in that: The gas storage tank unit (8) comprises a gas storage tank (81), a ball valve (82), a manual air release valve (83), a high-pressure pressure gauge (84), a pressure switch (85) and a gas storage safety valve (86).

4. The fixed air suspension inflator according to claim 1, characterized in that: The high-pressure inflation unit (9) comprises a high-pressure precision pressure regulating valve (91), a high-pressure safety valve (92), a high-pressure inflation pressure gauge (93) and a high-pressure cut-off valve (94).

5. The fixed air suspension inflator according to claim 1, characterized in that: The low-pressure inflation unit (10) comprises a low-pressure precision pressure regulating valve (101), a low-pressure inflation pressure gauge (102), a low-pressure cut-off valve (103) and a low-pressure one-way valve (104).

6. The fixed air suspension inflator according to claim 1, characterized in that: The fast-filling unit (11) comprises a fast-filling pressure regulating valve (111) and a fast-filling valve (112).

7. The fixed air suspension inflator according to claim 1, characterized in that: It also includes a pressure sensor (14) and a maintenance and deflation manual valve (15) arranged between the quick inflation unit (11) and the through-wall connecting pipe (16).

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