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CN-117028621-B - Pressure regulating valve, high-low pressure integrated pneumatic controller, control system and control method

CN117028621BCN 117028621 BCN117028621 BCN 117028621BCN-117028621-B

Abstract

The invention discloses a pressure regulating valve, a high-low pressure integrated pneumatic controller, a control system and a control method. The pressure regulating valve comprises a first framework, a coil is wound around the periphery of the first framework, U-shaped iron is arranged on the surface of the first framework, a first installation space is formed in the first framework in a hollow mode, an air guide hole is formed in one end of the first framework, a first opening is formed in the other end of the first framework, the air guide hole and the first opening are communicated with the first installation space, a silica gel cap, a first valve core, a first elastic element and a first plug are sequentially arranged in the first installation space, a second installation space is formed in the second framework in a hollow mode, a third air leakage opening is formed in one end of the second framework or the side wall of the second framework, a second opening is formed in one end of the second framework, which is far away from the third air leakage opening, the third air leakage opening and the second opening are communicated with the second installation space, a second valve core and a second elastic element are sequentially arranged in the second installation space, and the second opening is communicated with the first opening. The pressure regulating valve can meet different requirements of high-pressure inflation or low-pressure inflation.

Inventors

  • ZHANG HAITAO
  • YIN HAIKUN
  • Ai Jiajia
  • GUO XUELONG
  • HE XIN

Assignees

  • 廊坊市金色时光科技发展有限公司

Dates

Publication Date
20260508
Application Date
20230825

Claims (10)

  1. 1. A pressure regulating valve, comprising: the device comprises a first framework (11), a first air guide hole (26) and a first plug (17), wherein a coil (25) is wound on the periphery of the first framework (11), a U-shaped iron (12) is arranged on the surface of the first framework (11) and is arranged above the coil (25) in a crossing manner, a first installation space is formed in the first framework (11), an air guide hole (26) is formed in one end of the first framework (11), a first opening is formed in the other end of the first framework, the air guide hole (26) and the first opening are communicated with the first installation space, a silica gel cap (14), a first valve core (15), a first elastic element (16) and the first plug (17) are sequentially arranged in the first installation space from one side close to the air guide hole (26) to one side close to the first opening, the silica gel cap (14) is arranged at the end of the first valve core (15), the free end of the first valve core (15) is abutted with one end of the first elastic element (16), and the other end of the first elastic element (16) is abutted with the first plug (17), and the first plug (17) is used for enabling air to circulate; The second framework (13) is internally hollow to form a second installation space, one end or the side wall of the second framework (13) is provided with a third air leakage opening (22), one end of the second framework, which is far away from the third air leakage opening (22), is provided with a second opening, the third air leakage opening (22) and the second opening are communicated with the second installation space, a second valve core (18) and a second elastic element (19) are sequentially arranged in the second installation space from one side, which is close to the second opening, to one side, which is close to the third air leakage opening (22), of the second framework, one end of the second elastic element (19) is abutted against the bottom of the second installation space, the other end of the second elastic element is abutted against one end of the second valve core (18), the free end of the second valve core (18) is adjacent to the free end of the first plug (17), the second valve core (18) can move relative to the first plug (17), and the second opening is communicated with the first opening, and the second elastic element (16) is larger than the elastic element (19).
  2. 2. A pressure regulating valve according to claim 1, wherein the elastic force of said first elastic element (16) is 1.2-5 times the elastic force of said second elastic element (19).
  3. 3. A pressure regulating valve according to claim 1, wherein a silencing block (7) is provided at the third venting port (22) for silencing and reducing noise.
  4. 4. The pressure regulating valve according to claim 1, wherein an end of the gas vent (26) remote from the silicone cap (14) is provided with a gas nipple (20), and wherein the gas nipple (20) is in fluid communication with the gas vent (26).
  5. 5. A high and low pressure integrated pneumatic controller, comprising: The air guide passage (1) is provided with an air inlet end, and the air inlet end is used for being connected with an air source (2); the first valve group (3) is provided with a first air charging port, a first air inlet and a first air discharging port, wherein the first air charging port is used for being connected with a first air bag body (4), and the first air inlet is in fluid communication with the air guide passage (1); a second valve group (5), wherein the second valve group (5) is provided with a second air charging port, a second air inlet and a second air discharging port, the second air charging port is used for connecting a second air bag body (6), the second air inlet is in fluid communication with the air guide passage (1), the second valve group further comprises a pressure regulating valve (10) according to any one of claims 1-4, and an air guide nozzle (20) of the pressure regulating valve (10) is in fluid communication with the air guide passage (1).
  6. 6. The high-low pressure integrated pneumatic controller according to claim 5, wherein an air inlet nozzle (21) in fluid communication with the air guide nozzle (20) is provided on a branch of the air guide nozzle (20), and the air inlet end is in fluid communication with the air source (2) through the air inlet nozzle (21).
  7. 7. The high-low pressure integrated pneumatic controller according to claim 5, wherein the first valve group (3) and the second valve group (5) are solenoid valves or memory alloy type valve bodies.
  8. 8. A high and low pressure integrated pneumatic controller according to claim 7, characterized in that the number of pressure regulating valves (10) is at least one, the bearing forces of the second elastic elements (19) of the pressure regulating valves (10) being different.
  9. 9. A control system, comprising the high-low pressure integrated pneumatic controller and control unit according to any one of claims 5-8; the first valve group (3) comprises first control valves (8) matched with the number of the first air bag bodies (4); The second valve group (5) comprises second control valves (9) matched with the number of the second air bag bodies (6); The control unit is electrically connected with the first control valve (8), the second control valve (9) and the pressure regulating valve (10), and is used for controlling the opening and closing states of the first control valve (8), the second control valve (9) and the pressure regulating valve (10).
  10. 10. A control method implemented based on the control system of claim 9, characterized in that the control method comprises the steps of: when the first valve group (3), the second valve group (5) and the pressure regulating valve (10) are all in a closed state, the air pressure in the first air bag body (4) and the air pressure in the second air bag body (6) are kept unchanged; when the first valve group (3) or the second valve group (5) needs low-pressure inflation, the control unit controls the pressure regulating valve (10) to be in an open state, the second valve group (5) or the first valve group (3) is in a closed state, the air source (2) conducts air to the valve groups which are not closed in the first valve group (3) and the second valve group (5), and at the moment, the air exceeding the set pressure value of the pressure regulating valve (10) in the air conducting passage (1) is discharged from the third air discharging port (22) so as to enable the first air bag body (4) or the second air bag body (6) to be inflated at low pressure; When the first valve group (3) or the second valve group (5) needs high-pressure inflation, the control unit controls the pressure regulating valve (10) to be in a closed state, the second valve group (5) or the first valve group (3) is in a closed state, the air source (2) conducts air to the first valve group (3) or the valve group which is not closed in the second valve group (5), air enters the first air bag body (4) through the air conducting passage (1) through the valve group which is not closed in the first valve group (3) or enters the second air bag body (6) through the air conducting passage (1) through the valve group which is not closed in the second valve group (5), and then the air is inflated at high pressure to the first air bag body (4) or the second air bag body (6).

Description

Pressure regulating valve, high-low pressure integrated pneumatic controller, control system and control method Technical Field The invention relates to the technical field of automobiles, in particular to a pressure regulating valve, a high-low pressure integrated pneumatic controller, a control system and a control method. Background Most of the existing pneumatic controllers control the pressure-maintaining air bag body and the pressure-maintaining air bag body not required through electromagnetic valves, the same air source can only realize isobaric air inflation when in inflation, different people have different demands, the pressure-maintaining air bag body and the pressure-maintaining air bag body not required can be inflated at high pressure or low pressure, the isobaric air inflation mode of the existing pneumatic controllers obviously cannot meet the demands, the high pressure state can be achieved by adopting long-time air inflation, the comfort, the service life and the like of the pressure-maintaining air bag body can be influenced, and conversely, the performance, the working strength and the like of the pressure-maintaining air bag body not required can be influenced by adopting short-time air inflation to achieve the low pressure state. Currently, the solution adopted is to use gas sources with different pressures to meet the requirement of high and low pressure inflation, but the mode of adopting the different pressure sources is high in cost and complex. Therefore, we propose a pressure regulating valve, a high-low pressure integrated pneumatic controller, a control system and a control method for solving the above problems. Disclosure of Invention In view of the above-mentioned drawbacks or shortcomings in the prior art, it is desirable to provide a pressure regulating valve, a high-low pressure integrated pneumatic controller, a control system and a control method which have higher applicability, improve the user experience and effectively reduce the cost. In a first aspect, the present invention provides a pressure regulating valve comprising: The coil is wound on the periphery of the first framework, and the U-shaped iron is arranged on the surface of the first framework and spans over the coil; the U-shaped iron is used for enhancing magnetism, a first installation space is formed in the first framework in a hollow mode, an air guide hole is formed in one end of the first framework, a first opening is formed in the other end of the first framework, the air guide hole and the first opening are communicated with the first installation space, a silica gel cap, a first valve core, a first elastic element and a first plug are sequentially arranged in the first installation space from one side close to the air guide hole to one side close to the first opening, the silica gel cap is arranged at the end part of the first valve core and used for controlling opening and closing of the air guide hole, the free end of the first valve core is in butt joint with one end of the first elastic element, the other end of the first elastic element is in butt joint with the first plug, the first elastic element is used for providing acting force for resetting the silica gel cap and the first valve core, and the first plug is of a medium-pass structure and used for gas circulation; the second framework is internally hollow to form a second installation space, one end or the side wall of the second framework is provided with a third air leakage port, one end, far away from the third air leakage port, of the second framework is provided with a second opening, the third air leakage port and the second opening are communicated with the second installation space, a second valve core and a second elastic element are sequentially arranged in the second installation space from one side, close to the second opening, to one side, close to the third air leakage port, of the second installation space, one end of the second elastic element is abutted against the bottom of the second installation space, the other end of the second elastic element is abutted against one end of the second valve core, the free end of the second valve core is adjacent to the free end of the first plug, the second valve core can move relative to the first plug, the second opening is communicated with the first opening, and the elasticity of the first elastic element is larger than that of the second elastic element. According to the technical scheme provided by the invention, the elastic force of the first elastic element is 1.2-5 times of that of the second elastic element. According to the technical scheme provided by the invention, the third gas leakage port is provided with the silencing block for silencing and reducing noise. According to the technical scheme provided by the invention, a sealing ring is arranged at the contact position of the first plug and the second valve core. According to the technical scheme provided by the inventi