An automatic pressure-regulating air compressor valve structure

Abstract

This utility model relates to an air compressor valve structure, specifically an automatically pressure-adjustable air compressor valve structure, including a valve body and an air inlet and an air outlet respectively disposed at both ends of the valve body. The utility model integrates a lightweight turbine assembly at the air inlet end of the valve body; the larger the air flow, the higher the turbine speed. The turbine shaft is coaxially connected to a centrifugal counterweight mechanism with a counterweight block. When the air flow is under normal operating conditions, the spring preload and the centrifugal force of the centrifugal counterweight mechanism form a dynamic balance, maintaining a stable opening of the air inlet channel. When the air flow abnormally increases, the turbine speed increases synchronously with the flow, and the centrifugal force of the counterweight block significantly increases, overcoming the spring preload and driving the adjustment structure to generate axial displacement, thereby reducing the opening of the air inlet channel to suppress overflow. Conversely, when the air flow decreases, the turbine speed decreases, leading to a weakening of the centrifugal force, and the spring preload becomes dominant, pushing the adjustment structure to reset and increasing the opening of the air inlet channel, achieving flow compensation.

Description

Technical Field

[0001] This utility model relates to an air compressor valve structure, specifically an air compressor valve structure with automatic pressure adjustment. Background Technology

[0002] An air compressor is a mechanical device that compresses air. It can compress air from a low-pressure state to a high-pressure state, providing a power source for various devices that require compressed air, such as car tire inflation, industrial painting, and pneumatic tools.

[0003] Air compressor valves are key components in air compressors used to control gas flow. They are usually one-way valves that allow air to enter the cylinder when the piston moves downward and prevent gas backflow when the piston moves upward during the operation of the air compressor. This improves compression efficiency and ensures that the gas flows in the predetermined direction. The proper operation of the air valve is crucial to the airtightness and overall performance of the air compressor.

[0004] Existing air compressor valves and their pressure regulating systems generally have the following defects: First, they rely heavily on external control components such as pilot valves, solenoid valves, or electronic pressure sensors, which are not only complex and costly, but also cause immediate system failure in the event of power outages or circuit malfunctions, posing a significant single point of failure risk. Second, electronic sensing and control modules have poor anti-interference capabilities, and their reliability drops sharply in high-temperature, high-humidity, strong vibration, or flammable and explosive industrial environments, even posing safety hazards. Third, traditional mechanical pressure regulating mechanisms are mostly based on static pressure feedback, which has a lag in response and is difficult to cope with pressure pulsations caused by drastic flow fluctuations, easily causing system pressure overshoot or oscillation, affecting the working stability and efficiency of air-using equipment. Utility Model Content

[0005] The purpose of this invention is to provide an air compressor valve structure with automatic pressure adjustment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatically pressure-regulating air compressor valve structure includes a valve body and an air inlet and an air outlet respectively disposed at both ends of the valve body. The valve body has an air inlet channel and a sliding cavity inside. A limit slider and a pressure regulating mechanism for adjusting the air inlet channel are disposed on the limit slider above the sliding cavity. A lightweight turbine assembly and a gear transmission mechanism fixedly sleeved on the lightweight turbine assembly are disposed above the air inlet at one end of the valve body. The gear transmission mechanism is connected to a bearing fixed on the top of the valve body. A centrifugal counterweight mechanism is fixedly connected to one end of the bearing. The centrifugal counterweight mechanism is rotatably connected to the pressure regulating mechanism.

[0008] The air compressor valve structure with automatic pressure adjustment as described above: The pressure adjustment mechanism includes a column fixedly connected to the limiting slider and an adjusting slider fixedly installed at the bottom of the column, the adjusting slider being disposed above the air inlet channel.

[0009] The air compressor valve structure with automatic pressure adjustment as described above: a spring body is fixedly installed in the sliding cavity, the spring body is sleeved on the column, and the spring body is fixedly connected to the limiting slider.

[0010] The air compressor valve structure with automatic pressure regulation as described above: The lightweight turbine assembly includes a shaft rotatably mounted on the air inlet and multiple turbine blades fixedly connected to the shaft for flow control rotation, the multiple turbine blades covering the air inlet.

[0011] The air compressor valve structure with automatic pressure adjustment as described above: The gear transmission mechanism includes a first gear fixedly sleeved on the top of the shaft and a second gear meshing with the first gear, the second gear being fixedly sleeved on the shaft seat.

[0012] The air compressor valve structure with automatic pressure adjustment as described above: The centrifugal counterweight mechanism includes a centrifugal rotating component fixedly connected to the bottom of the shaft seat and two guide columns disposed at the bottom of the centrifugal rotating component, and a counterweight slider is slidably installed on each of the two guide columns.

[0013] The air compressor valve structure with automatic pressure adjustment as described above: the bottom of each of the two counterweight sliders is rotatably connected to a connecting arm, and the bottom end of each of the two connecting arms is rotatably connected to a turntable, which is rotatably connected to the column.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] A lightweight turbine assembly is integrated at the air inlet end of the valve body. Its rotational speed is strictly positively correlated with the airflow rate; the higher the airflow rate, the higher the turbine rotational speed. The turbine shaft is coaxially connected to a centrifugal counterweight mechanism with a counterweight block. When the turbine rotational speed increases, the counterweight block experiences increased centrifugal force and generates displacement along the shaft axis. A pressure spring assembly is pre-installed within the valve body. The reference preload force it provides corresponds to the target airflow pressure threshold. When the airflow rate is under normal operating conditions, the spring preload force and the centrifugal force of the centrifugal counterweight mechanism form a dynamic balance, and the airflow channel maintains a stable opening. When the airflow rate increases abnormally, the turbine rotational speed increases synchronously with the flow rate, and the centrifugal force of the counterweight block is significantly enhanced. This overcomes the spring preload force and drives the adjustment structure to generate axial displacement, thereby reducing the airflow channel opening to suppress overflow. Conversely, when the airflow rate decreases, the turbine rotational speed decreases, resulting in a weakening of the centrifugal force. The spring preload force becomes dominant, pushing the adjustment structure to reset and increase the airflow channel opening, thus achieving flow compensation.

[0016] This utility model requires no additional drive components. Through the mechanical linkage of the turbine, centrifuge, and spring, it achieves adaptive matching between the intake flow rate and the intake opening. It can automatically suppress sudden pressure changes caused by flow fluctuations and ensure stable intake pressure of the air compressor. At the same time, it avoids the problems of excessive flow energy consumption or insufficient air supply due to insufficient flow, reduces the overall energy consumption of the machine, and has a simple mechanical structure, direct response, and high operational reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal structure of the valve body of an air compressor with automatic pressure adjustment.

[0018] Figure 2 This is a schematic diagram of the internal structure of the valve body in an automatically pressure-adjustable air compressor valve from another angle.

[0019] Figure 3 This is a schematic diagram of the overall structure of the air valve in an automatically pressure-adjustable air compressor.

[0020] Figure 4 This is a front view schematic diagram of the air valve structure of an automatically pressure-adjustable air compressor.

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the valve body in the automatic pressure regulating air compressor valve structure.

[0022] Figure 6 This is a schematic diagram of the pressure regulating mechanism, lightweight turbine assembly, gear transmission mechanism, and centrifugal counterweight mechanism in the valve structure of an automatically pressure-regulating air compressor.

[0023] Figure 7 This is a schematic diagram of the pressure regulating mechanism and centrifugal counterweight mechanism in the valve structure of an automatically pressure-adjustable air compressor.

[0024] Figure 8 This is a schematic diagram of a lightweight turbine assembly in the valve structure of an automatically pressure-adjustable air compressor.

[0025] Figure 9 This is a bottom view schematic diagram of the centrifugal counterweight mechanism in the valve structure of an automatically pressure-adjustable air compressor.

[0026] In the diagram: 1. Valve body; 2. Air inlet; 3. Air outlet; 4. Air intake channel; 5. Sliding cavity; 6. Column; 7. Limiting slider; 8. Adjusting slider; 9. Spring body; 10. Shaft; 11. Turbine blade; 12. First gear; 13. Shaft seat; 14. Second gear; 15. Centrifugal rotating component; 16. Guide column; 17. Counterweight slider; 18. Connecting arm. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Please see Figures 1-9 As an embodiment of this utility model, the automatically pressure-adjustable air compressor valve structure includes a valve body 1, and an air inlet 2 and an air outlet 3 respectively disposed at both ends of the valve body 1. The valve body 1 is provided with an air inlet channel 4 and a sliding cavity 5. A limit slider 7 is provided on the sliding cavity 5, and a pressure regulating mechanism is provided on the limit slider 7 for adjusting the air inlet channel 4. A lightweight turbine assembly and a gear transmission mechanism fixedly sleeved on the lightweight turbine assembly are provided on the air inlet 2 at one end of the valve body 1. The gear transmission mechanism is connected to a bearing seat 13 fixed on the top of the valve body 1. A centrifugal counterweight mechanism is fixedly connected to one end of the bearing seat 13, and the centrifugal counterweight mechanism is rotatably connected to the pressure regulating mechanism.

[0029] In this embodiment, a lightweight turbine assembly is integrated at the air inlet end of the valve body 1. Its rotational speed is strictly positively correlated with the air flow rate; the larger the air flow rate, the higher the turbine rotational speed. The turbine shaft is coaxially connected to a centrifugal counterweight mechanism with a counterweight block. When the turbine rotational speed increases, the counterweight block experiences increased centrifugal force and generates displacement along the shaft axis. A pressure spring assembly is preset inside the valve body 1. The reference preload force provided by the spring corresponds to the target air inlet pressure threshold. When the air flow rate at the air inlet 2 is under normal operating conditions, the spring preload force and the centrifugal force of the centrifugal counterweight mechanism form a dynamic balance, and the air inlet channel 4 maintains a stable opening. When the air flow rate increases abnormally, the turbine rotational speed increases synchronously with the flow rate, and the centrifugal force of the counterweight block is significantly enhanced, overcoming the spring preload force and driving the adjustment structure to generate axial displacement, thereby reducing the opening of the air inlet channel 4 to suppress overflow. Conversely, when the air flow rate decreases, the turbine rotational speed decreases, resulting in a weakening of the centrifugal force. The spring preload force becomes dominant, pushing the adjustment structure to reset and increase the opening of the air inlet channel 4, thus achieving flow compensation.

[0030] As a further embodiment of this utility model, the pressure regulating mechanism includes a column 6 fixedly connected to the limiting slider 7 and an adjusting slider 8 fixedly installed at the bottom of the column 6, wherein the adjusting slider 8 is disposed on the air inlet channel 4.

[0031] In this embodiment, the column 6 is slidably mounted on the sliding cavity 5 via the limiting slider 7, and the adjusting slider 8 is set in the air inlet channel 4 to adjust the air intake flow rate.

[0032] As a further embodiment of this utility model, a spring body 9 is fixedly installed inside the sliding cavity 5, the spring body 9 is sleeved on the column 6, and the spring body 9 is fixedly connected to the limiting slider 7.

[0033] In this embodiment, the spring body 9 can elastically displace the adjusting slider 8, and the reference preload provided by the spring body 9 corresponds to the target intake pressure threshold.

[0034] As a further embodiment of this utility model, the lightweight turbine assembly includes a shaft 10 rotatably mounted on the air inlet 2 and a plurality of turbine blades 11 fixedly connected to the shaft 10 for flow control rotation, the plurality of turbine blades 11 covering the air inlet 2.

[0035] In this embodiment, the airflow entering through the air inlet 2 is first directed onto the turbine blades 11, which in turn drives the turbine blades 11 to rotate and simultaneously drives the shaft 10 to rotate.

[0036] As a further embodiment of this utility model, the gear transmission mechanism includes a first gear 12 fixedly sleeved on the top of the shaft 10 and a second gear 14 meshing with the first gear 12, the second gear 14 being fixedly sleeved on the shaft seat 13.

[0037] In this embodiment, the rotation of the first gear 12 will synchronously drive the second gear 14 and the bearing 13 to rotate.

[0038] As a further embodiment of this utility model, the centrifugal counterweight mechanism includes a centrifugal rotating component 15 fixedly connected to the bottom of the bearing seat 13 and two guide posts 16 disposed at the bottom of the centrifugal rotating component 15, with counterweight sliders 17 slidably mounted on both guide posts 16.

[0039] In this embodiment, the rotation of the bearing seat 13 will drive the centrifugal rotating component 15 to rotate. When the centrifugal rotating component 15 rotates, it will generate centrifugal force, thereby driving the two counterweight sliders 17 to be thrown outward.

[0040] As a further embodiment of this utility model, the bottom of each of the two counterweight sliders 17 is rotatably connected to a connecting arm 18, and the bottom of each of the two connecting arms 18 is rotatably connected to a turntable, the turntable being rotatably connected to the column 6.

[0041] In this embodiment, when the airflow at the air inlet 2 is under normal operating conditions, the preload of the spring body 9 and the centrifugal force of the two counterweight sliders 17 form a dynamic balance, so that the air intake channel 4 maintains a stable opening. When the airflow increases abnormally, the turbine speed increases synchronously with the flow rate, and the centrifugal force of the counterweight sliders 17 is significantly enhanced, overcoming the preload of the spring body 9 and driving the adjustment structure to generate axial displacement. Subsequently, the two counterweight sliders 17 drive the column 6 and the adjustment slider 8 upward through the connecting arm 18, thereby reducing the opening of the air intake channel 4 to suppress overflow. Conversely, when the airflow decreases, the turbine speed decreases, resulting in a weakening of the centrifugal force. The preload of the spring body 9 becomes dominant, pushing the column 6 and the adjustment slider 8 downward to increase the opening of the air intake channel 4 and achieve flow compensation.

[0042] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. An air compressor valve structure with automatic pressure regulation, comprising a valve body (1), and an air inlet (2) and an air outlet (3) respectively disposed at both ends of the valve body (1), characterized in that, The valve body (1) is provided with an air inlet channel (4) and a sliding cavity (5). A limit slider (7) and a pressure regulating mechanism for adjusting the air inlet channel (4) are provided on the sliding cavity (5). A lightweight turbine assembly and a gear transmission mechanism fixedly sleeved on the lightweight turbine assembly are provided on the air inlet (2) at one end of the valve body (1). The gear transmission mechanism is connected to a bearing seat (13) fixed on the top of the valve body (1). A centrifugal counterweight mechanism is fixedly connected to one end of the bearing seat (13). The centrifugal counterweight mechanism is rotatably connected to the pressure regulating mechanism.

2. The air compressor valve structure with automatic pressure adjustment according to claim 1, characterized in that, The pressure regulating mechanism includes a column (6) fixedly connected to the limiting slider (7) and an adjusting slider (8) fixedly installed at the bottom of the column (6). The adjusting slider (8) is located above the air inlet channel (4).

3. The air compressor valve structure with automatic pressure adjustment according to claim 2, characterized in that, A spring body (9) is fixedly installed inside the sliding cavity (5). The spring body (9) is sleeved on the column (6). The spring body (9) is fixedly connected to the limiting slider (7).

4. The air compressor valve structure with automatic pressure adjustment according to claim 3, characterized in that, The lightweight turbine assembly includes a shaft (10) rotatably mounted on the air inlet (2) and a plurality of turbine blades (11) fixedly connected to the shaft (10) for flow-controlled rotation, the plurality of turbine blades (11) covering the air inlet (2).

5. The air compressor valve structure with automatic pressure adjustment according to claim 4, characterized in that, The gear transmission mechanism includes a first gear (12) fixedly sleeved on the top of the shaft (10) and a second gear (14) meshing with the first gear (12), the second gear (14) being fixedly sleeved on the shaft seat (13).

6. The air compressor valve structure with automatic pressure adjustment according to claim 5, characterized in that, The centrifugal counterweight mechanism includes a centrifugal rotating component (15) fixedly connected to the bottom of the bearing seat (13) and two guide posts (16) disposed at the bottom of the centrifugal rotating component (15), with counterweight sliders (17) slidably mounted on both guide posts (16).

7. The air compressor valve structure with automatic pressure adjustment according to claim 6, characterized in that, The bottom of each of the two counterweight sliders (17) is rotatably connected to a connecting arm (18), and the bottom of each of the two connecting arms (18) is rotatably connected to a turntable, which is rotatably connected to the column (6).

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