Air compressor stable air supply pressure regulating buffer device
By designing a stable air supply pressure regulating and buffering device for air compressors, and using airbags and buffer components to regulate pressure fluctuations, the problem of pressure fluctuations in the air compressor supply system is solved, thereby achieving stable operation and extended lifespan of pneumatic equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QIXIAN EVERBRIGHT GLASS CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-21
AI Technical Summary
In existing air compressor supply systems, pressure fluctuations cause unstable operation of pneumatic equipment, affecting its working accuracy and service life. At the same time, they also impact air supply pipelines and valves, increasing maintenance costs.
An air compressor stable air supply pressure regulating buffer device was designed, which includes an air bag, a partition plate, a pressure gauge and a buffer component. The air bag stores and releases compressed air, and the intake air volume and gas flow volume are adjusted by a spring to achieve pressure stability.
It effectively buffers pressure fluctuations, improves the operational stability of pneumatic equipment, extends service life, and reduces equipment failure rate and maintenance costs.
Smart Images

Figure CN224532940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of air compressor auxiliary devices, and more specifically, to an air compressor stable air supply pressure regulating and buffering device. Background Technology
[0002] As an important power source in industrial production, the compressed air output by air compressors is widely used in pneumatic tools, automated production lines, pneumatic control systems and other fields. However, during operation, due to factors such as loading, unloading and air volume fluctuations, the output pressure of air compressors often fluctuates significantly, which brings many adverse effects to downstream air-using equipment.
[0003] In existing air compressor supply systems, pressure regulation mostly relies on traditional pressure switches or simple regulating valves. When the air compressor is loaded or unloaded, the supply pressure will experience large instantaneous fluctuations. These pressure fluctuations will cause instability in the operation of pneumatic equipment, affecting its working accuracy and service life. At the same time, they cannot effectively absorb and mitigate pressure fluctuations. The rapid changes in pressure will impact components such as air supply pipelines and valves. Long-term use can easily cause pipeline leaks, valve damage and other malfunctions, increasing equipment maintenance costs and downtime. Therefore, a stable air supply pressure regulation and buffer device for air compressors is proposed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an air compressor stable air supply pressure regulating and buffering device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a stable air supply pressure regulating and buffering device for an air compressor, comprising a housing, an air bladder fixedly connected to the bottom of the housing, and a through hole at the bottom of the housing. When the pressure in the air inlet pipe increases, some compressed air enters the air bladder, causing it to inflate and store a certain amount of compressed air. When the pressure decreases, the compressed air in the air bladder flows back to replenish the gas volume, playing an auxiliary buffering role and enhancing the buffering capacity of the device. A partition plate is fixedly connected to the middle of the housing, and the partition plate allows the compressed air to flow in stages within the housing. To buffer and improve pressure stability, a pressure gauge is installed on one side of the housing, with its detection end extending into the interior of the housing. The pressure gauge is used to monitor the compressed air pressure in the intake space in real time, thereby detecting the internal pressure of the air bladder and allowing operators to understand the internal pressure status of the device. An inlet pipe and an outlet pipe are connected to the top two sides of the housing, respectively. One end of the inlet pipe is connected to the output end of the air compressor to introduce compressed air from the air compressor into the housing; the outlet pipe is connected to the equipment's inlet pipe to deliver the regulated and buffered compressed air to downstream air-using equipment.
[0006] Both the inlet and outlet pipes are fitted with threaded covers at one end and sealing rings at the other end. They are tightly connected to the air compressor output and the equipment inlet pipe respectively via threaded connections, ensuring a secure connection. The sealing rings deform under compression, effectively enhancing the sealing of the connection and preventing compressed air leakage. A first buffer assembly is provided in the middle of the inlet pipe, and a second buffer assembly is provided on one side of the partition plate. Through the cooperation of the first and second buffer assemblies, the gas entering through the inlet pipe can be depressurized and stably output through the outlet pipe, achieving the function of air pressure buffering.
[0007] Preferably, the inner cavity of the air intake pipe is connected to the inner cavity of the airbag through a through hole and the housing. The pressure gauge is located on the side of the partition plate near the air intake pipe. The instantaneous air pressure input into the air intake pipe can directly enter the inner side of the housing and enter the airbag. It is buffered by the expansion of the airbag, and the pressure gauge can detect the air pressure intensity inside the airbag.
[0008] Preferably, a handle is fixedly connected to the top center of the housing, one end of the air inlet pipe is connected to the output end of the air compressor, and the air outlet pipe is connected to the air inlet pipe of the equipment. The handle facilitates the operator to carry and move the device, improving the portability of the device.
[0009] Preferably, the first buffer assembly includes a fixing ring and a support plate fixed in the inner cavity of the air intake pipe near one end of the housing. A rod is inserted into the middle of the support plate, and a limit plate and a sealing block are fixedly connected to both ends of the rod, respectively.
[0010] Preferably, the sealing block is located on the side of the insert rod near the fixing ring. The fixing ring has a sealing through hole in its middle. One end of the sealing block extends into the interior of the sealing through hole. A first spring is sleeved in the middle of the insert rod. The first spring is disposed between the sealing block and the support plate. When the pressure in the intake pipe increases, the compressed air pushes the sealing block to move away from the fixing ring, compressing the first spring. This increases the opening of the sealing through hole and the intake volume. When the pressure decreases, the first spring returns to its original position, pushing the sealing block to move closer to the fixing ring. This decreases the opening of the sealing through hole and the intake volume, thereby achieving initial buffering and regulation of the intake pressure.
[0011] Preferably, the second buffer assembly includes a blocking block disposed on one side of the partition plate, the partition plate having a vent hole in the middle, one end of the blocking block extending to the middle of the vent hole in the partition plate, and the other end of the blocking block having a stabilizing groove.
[0012] Preferably, a stabilizing rod is inserted into the middle of the stabilizing groove, and a second spring is sleeved in the middle of the stabilizing rod. The stabilizing rod is fixed to one side of the inner cavity of the box. When the pressure in the air inlet space increases, it pushes the sealing block to move away from the partition plate, compressing the second spring, increasing the opening of the vent, and increasing the flow rate of gas from the air inlet space to the air outlet space. When the pressure decreases, the second spring returns to its original position, pushing the sealing block to move closer to the partition plate, decreasing the opening of the vent, reducing the flow rate, and further buffering and regulating the pressure to make the output pressure more stable.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. This utility model firstly utilizes the dual functions of the first and second buffer components to effectively regulate and buffer the fluctuations in the output pressure of the air compressor. The elasticity of the first and second springs allows the sealing block and plugging block to automatically adjust their opening according to pressure changes, achieving dynamic regulation of the intake volume and gas flow. The air bladder further enhances the buffering capacity of the device. When the pressure changes suddenly, it stores and releases compressed air to help stabilize the pressure, enabling the device to adapt to a wider range of pressure fluctuations, thereby maintaining the stability of the pneumatic equipment and improving its service life.
[0015] 2. This utility model also facilitates real-time monitoring of the pressure value inside the cavity where the input airbag is located through the set pressure gauge, and is easy to carry and use through the handle. The cooperation of the threaded cover and sealing ring can facilitate connection and use, and improve the sealing strength of the connection. The stability rod improves the stability of the movement of the sealing block, the insertion rod improves the stability of the movement of the sealing block, and the support plate supports and limits the insertion rod and the first spring.
[0016] In summary, through the interaction of the above-mentioned multiple functions, dynamic adjustment of air intake and gas flow can be achieved. By storing and releasing compressed air, pressure can be stabilized, enabling the device to adapt to a wider range of pressure fluctuations, thereby maintaining the stability of pneumatic equipment operation and improving its service life. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.
[0019] Figure 3 This is a schematic diagram of the cross-sectional split structure of this utility model.
[0020] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.
[0021] Figure 5 This utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle.
[0022] The attached diagram is labeled as follows: 1. Box body; 2. Airbag; 3. Through hole; 4. Pressure gauge; 5. Divider plate; 6. Air inlet pipe; 7. Air outlet pipe; 8. Threaded cover; 9. Sealing ring; 10. Fixing ring; 11. Sealing through hole; 12. Support plate; 13. Insert rod; 14. Limiting plate; 15. Sealing block; 16. First spring; 17. Sealing block; 18. Stabilizing groove; 19. Stabilizing rod; 20. Second spring; 21. Handle. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] As attached Figure 1-5 The air compressor stable air supply pressure regulating and buffering device shown includes a housing 1, with an air bladder 2 fixedly connected to the bottom of the housing 1. A through hole 3 is provided at the bottom of the housing 1. When the pressure in the intake pipe 6 increases, some compressed air enters the air bladder 2, causing it to inflate and store a certain amount of compressed air. When the pressure decreases, the compressed air in the air bladder 2 flows back to replenish the gas volume, playing an auxiliary buffering role and enhancing the device's buffering capacity. A partition plate 5 is fixedly connected to the middle of the housing 1. The partition plate 5 allows the compressed air to be buffered in stages within the housing, improving pressure stabilization. As a result, a pressure gauge 4 is installed on one side of the housing 1. The detection end of the pressure gauge 4 extends into the interior of the housing 1. The pressure gauge 4 is used to monitor the compressed air pressure in the air intake space in real time, thereby detecting the internal pressure of the airbag 2, which makes it convenient for operators to understand the internal pressure status of the device. The top two sides of the housing 1 are respectively connected to the air inlet pipe 6 and the air outlet pipe 7. One end of the air inlet pipe 6 is connected to the output end of the air compressor, which is used to introduce the compressed air output by the air compressor into the housing 1. The air outlet pipe 7 is connected to the equipment's air inlet pipe, which is used to deliver the regulated and buffered compressed air to the downstream air-using equipment.
[0025] Both the inlet pipe 6 and the outlet pipe 7 have threaded covers 8 fitted at one end and sealing rings 9 fitted at one end. They are tightly connected to the air compressor output end and the equipment inlet pipe respectively by threaded connection to ensure the connection is firm. The sealing rings 9 deform under compression, which can effectively enhance the sealing of the connection and prevent compressed air leakage. A first buffer component is provided in the middle of the inlet pipe 6 and a second buffer component is provided on one side of the partition plate 5. Through the cooperation of the first buffer component and the second buffer component, the gas entering through the inlet pipe 6 can be depressurized and output stably through the outlet pipe 7, realizing the function of air pressure buffering.
[0026] As attached Figure 1-3 As shown, the inner cavity of the air inlet pipe 6 is connected to the inner cavity of the air bag 2 through the through hole 3 and the box 1. The pressure gauge 4 is located on the side of the partition plate 5 near the air inlet pipe 6. A handle 21 is fixedly connected to the top center of the box 1. One end of the air inlet pipe 6 is connected to the output end of the air compressor. The air outlet pipe 7 is connected to the air inlet pipe of the equipment. The instantaneous air pressure entering the inside of the air inlet pipe 6 can directly enter the inner side of the box 1 and enter the inside of the air bag 2. It is buffered by the expansion of the air bag 2. The pressure gauge 4 can detect the air pressure intensity inside the air bag 2. The handle 21 makes it convenient for operators to carry and move the device, improving the portability of the device.
[0027] As attached Figure 2-4 As shown, the first buffer assembly includes a fixing ring 10 and a support plate 12 fixed in the inner cavity of the air intake pipe 6 near one end of the housing 1. A rod 13 is inserted into the middle of the support plate 12. A limit plate 14 and a sealing block 15 are fixedly connected to both ends of the rod 13, respectively. The sealing block 15 is located on the side of the rod 13 near the fixing ring 10. A sealing through hole 11 is opened in the middle of the fixing ring 10. One end of the sealing block 15 extends into the interior of the sealing through hole 11. A first spring 16 is sleeved in the middle of the rod 13. The first spring 16 is disposed between the sealing block 15 and the support plate 12. When the pressure in the air intake pipe 6 increases, the compressed air pushes the sealing block 15 to move away from the fixing ring 10, compressing the first spring 16. The opening of the sealing through hole 11 increases, and the air intake increases. When the pressure decreases, the first spring 16 returns to its original position, pushing the sealing block 15 to move closer to the fixing ring 10. The opening of the sealing through hole 11 decreases, and the air intake decreases, thereby achieving preliminary buffering and regulation of the air intake pressure.
[0028] As attached Figure 2 , 3As shown in Figure 5, the second buffer assembly includes a blocking block 17 disposed on one side of the partition plate 5. A vent hole is provided in the middle of the partition plate 5. One end of the blocking block 17 extends to the middle of the vent hole of the partition plate 5, and a stabilizing groove 18 is provided at the other end of the blocking block 17. A stabilizing rod 19 is inserted into the middle of the stabilizing groove 18, and a second spring 20 is sleeved in the middle of the stabilizing rod 19. The stabilizing rod 19 is fixed to one side of the inner cavity of the housing 1. When the pressure in the air inlet space increases, it pushes the blocking block 17 to move away from the partition plate 5, compressing the second spring 20. The opening of the vent hole increases, and the flow rate of gas from the air inlet space to the air outlet space increases. When the pressure decreases, the second spring 20 returns to its original position, pushing the blocking block 17 to move closer to the partition plate 5. The opening of the vent hole decreases, and the flow rate decreases, further buffering and regulating the pressure, making the output pressure more stable.
[0029] The working principle of this utility model is as follows: When in use, one end of the air inlet pipe is connected to the output end of the air compressor through a threaded cover, and one end of the air outlet pipe is connected to the air inlet pipe of the pneumatic equipment through a threaded cover, and sealed by a sealing ring.
[0030] When the air compressor is started, the generated air pressure will instantly enter the air intake pipe and squeeze the sealing block. The first spring will buffer the air pressure, allowing it to enter the housing and simultaneously enter the air bladder through the through hole, causing the air bladder to inflate. At this time, the pressure change inside the housing can be monitored in real time by a pressure gauge.
[0031] At the same time, some gas will push the sealing block to squeeze the second spring, which will buffer the gas and allow some gas to be delivered to the pneumatic equipment through the outlet pipe. This can achieve the function of buffering the delivered gas and avoid excessive pressure.
[0032] When the air compressor output pressure decreases, the first spring resets and pushes the sealing block to reduce the opening of the sealing orifice, thereby reducing the air intake. The gas in the air bladder flows back to replenish the air, while the second spring resets and pushes the sealing block to reduce the opening of the vent, thereby reducing the gas outflow and maintaining stable pressure on the outlet side, ensuring the normal operation of the pneumatic equipment.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An air compressor stable air supply pressure regulating and buffering device, comprising a housing (1), characterized in that: An airbag (2) is fixedly connected to the bottom of the box (1). A through hole (3) is opened at the bottom of the box (1). A partition plate (5) is fixedly connected to the middle of the box (1). A pressure gauge (4) is provided on one side of the box (1). The detection end of the pressure gauge (4) extends into the interior of the box (1). An air inlet pipe (6) and an air outlet pipe (7) are respectively connected to the top two sides of the box (1). One end of the air inlet pipe (6) and the air outlet pipe (7) are fitted with a threaded cover (8), and one end of the air inlet pipe (6) and the air outlet pipe (7) are fitted with a sealing ring (9). A first buffer assembly is provided in the middle of the air inlet pipe (6), and a second buffer assembly is provided on one side of the partition plate (5).
2. The air compressor stable air supply pressure regulating and buffering device according to claim 1, characterized in that: The inner cavity of the air inlet pipe (6) is connected to the inner cavity of the air bag (2) through the through hole (3) and the box (1), and the pressure gauge (4) is located on the side of the partition plate (5) near the air inlet pipe (6).
3. The air compressor stable air supply pressure regulating and buffering device according to claim 1, characterized in that: A handle (21) is fixedly connected to the top center of the housing (1), one end of the air inlet pipe (6) is connected to the output end of the air compressor, and the air outlet pipe (7) is connected to the air inlet pipe of the equipment.
4. The air compressor stable air supply pressure regulating and buffering device according to claim 1, characterized in that: The first buffer assembly includes a fixing ring (10) and a support plate (12) fixed in the inner cavity of the air inlet pipe (6) near the end of the box (1). A rod (13) is inserted in the middle of the support plate (12), and a limit plate (14) and a sealing block (15) are fixedly connected to the two ends of the rod (13).
5. The air compressor stable air supply pressure regulating and buffering device according to claim 4, characterized in that: The sealing block (15) is located on the side of the insert rod (13) near the fixing ring (10). The fixing ring (10) has a sealing through hole (11) in the middle. One end of the sealing block (15) extends into the interior of the sealing through hole (11). The insert rod (13) is fitted with a first spring (16) in the middle. The first spring (16) is located between the sealing block (15) and the support plate (12).
6. The air compressor stable air supply pressure regulating and buffering device according to claim 1, characterized in that: The second buffer assembly includes a blocking block (17) disposed on one side of the partition plate (5), the partition plate (5) having a vent hole in the middle, one end of the blocking block (17) extending to the middle of the vent hole of the partition plate (5), and the other end of the blocking block (17) having a stabilizing groove (18).
7. The air compressor stable air supply pressure regulating and buffering device according to claim 6, characterized in that: A stabilizing rod (19) is inserted in the middle of the stabilizing groove (18), and a second spring (20) is sleeved in the middle of the stabilizing rod (19). The stabilizing rod (19) is fixed to one side of the inner cavity of the box body (1).