Pneumatic positive and negative pressure switching system
By designing a pneumatic positive and negative pressure switching system including a two-position five-way reversing valve, a pressure reducing valve, an air-controlled check valve and a vacuum generator, the problem that conventional compressed air transmission systems cannot switch positive and negative pressure is solved, and the flexibility and convenience of compressed air transmission are achieved.
CN222687959UActive Publication Date: 2025-03-28SUZHOU FANGNIT IND TECH CO LTD
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Patent Information
- Application Number
- CN202421576780.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-05
AI Technical Summary
Technical Problem
Conventional compressed air transmission systems can only transmit compressed air of a single nature and cannot flexibly switch positive and negative pressures, resulting in inconvenient system use.
Method used
A pneumatic positive and negative pressure switching system is designed, using a combination of a two-position five-way reversing valve, a pressure reducing valve, an air-controlled check valve and a vacuum generator. The positive and negative pressure switching of compressed air is achieved through the control of the reversing valve and an air-controlled check valve.
Benefits of technology
The system can improve the flexibility of compressed air transmission by operating a reversing valve to output both positive and negative compressed air.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a pneumatic positive and negative pressure switching system which comprises a two-position five-way reversing valve, one side of the two-position five-way reversing valve is provided with a first gas transmission port, one side of the two-position five-way reversing valve is provided with a second gas transmission port, one side of the first gas transmission port is provided with a pressure reducing valve, and the other side of the second gas transmission port is provided with a second gas transmission port. A third gas conveying opening is formed in one side of the pressure reducing valve, and a first pneumatic control one-way valve is arranged on one side of the third gas conveying opening. Compressed air in the two-position five-way reversing valve is input into the pressure reducing valve through the first air conveying port, at the moment, the compressed air enters the first pneumatic control one-way valve after being subjected to pressure regulation through the pressure reducing valve, and meanwhile positive pressure air can be directly accumulated through the positive pressure outlet and the negative pressure outlet to be output in a difficult-to-change mode when the first pneumatic control one-way valve is opened. When the first gas transmission port is switched to the second gas transmission port, the compressed air enters the vacuum generator and the second pneumatic control one-way valve is opened at the same time, and at the moment, the negative pressure gas can be output through the second pneumatic control one-way valve.
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