Flow fine regulation and control structure of one-way throttle valve

Abstract

The utility model relates to the technical field of one-way throttle valves, in particular to a flow fine regulation and control structure of a one-way throttle valve, which comprises a valve cylinder, and a throttling fine regulation and control component and a one-way valve body component are arranged in the valve cylinder. The one-way valve body assembly comprises a piston barrel, connecting rods are fixedly installed on the circumference of the side wall of the piston barrel at equal intervals, the outer side ends of the connecting rods are fixedly connected with the inner wall of the valve cylinder, a rubber ring is arranged on the outer side wall of the piston barrel, a lower ring is fixedly connected to the lower side of the rubber ring, an upper ring is fixedly connected to the upper side of the rubber ring, and a compression spring is fixedly connected to the inner side of the upper ring. The inner side end of the compression spring is fixedly connected with a magnetic suction cup, the magnetic suction cup is attracted to the outer wall of the piston barrel, the throttling fine regulation and control assembly comprises a threaded rod, and the threaded rod penetrates through the inner side of the valve cylinder in a threaded connection mode. The one-way valve body assembly is arranged, and the rubber ring and multiple groups of springs are combined, so that the rubber ring still has excellent sealing performance under the condition of long-term use, and the practicability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of one-way throttle valve technology, and in particular to a one-way throttle valve flow fine control structure. Background Technology

[0002] A one-way throttle valve is a device for controlling the flow rate of a hydraulic or pneumatic system.

[0003] As an important device for controlling the flow of hydraulic or pneumatic systems, the key rubber ring material inside the one-way throttle valve is prone to aging and deterioration of sealing performance under long-term use. This phenomenon is closely related to the characteristics of rubber material. Specifically, under the combined effects of multiple factors such as pressure, temperature, humidity and media corrosion over a long period of time, the rubber ring will gradually lose its original elasticity and flexibility, resulting in a decrease in sealing performance, which in turn affects the overall working efficiency and stability of the one-way throttle valve.

[0004] To address this issue, we propose a one-way throttle valve flow fine control structure. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a one-way throttle valve flow fine control structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A one-way throttle valve flow fine control structure includes a valve cylinder, inside which are disposed a throttle fine control component and a one-way valve body component; the one-way valve body component includes a piston cylinder, on which connecting rods are fixedly installed circumferentially at equal intervals; the outer end of the connecting rods is fixedly connected to the inner wall of the valve cylinder; a rubber ring is disposed on the outer wall of the piston cylinder; a lower ring is fixedly connected to the lower side of the rubber ring; an upper ring is fixedly connected to the upper side of the rubber ring; a compression spring is fixedly connected to the inner side of the upper ring; a magnetic chuck is fixedly connected to the inner end of the compression spring; the magnetic chuck is attracted to the outer wall of the piston cylinder.

[0008] Furthermore, the throttling fine control component includes a threaded rod that is threaded through to the inside of the valve cylinder. A turntable is fixedly installed on the lower side of the threaded rod, and a connecting column is rotatably installed on the lower end of the turntable. A sealing piston is fixedly installed on the lower end of the connecting column, and the sealing piston slides in contact with the inner wall of the piston cylinder.

[0009] Furthermore, a circular hole is provided at the bottom of the piston cylinder.

[0010] Furthermore, a handle is fixedly installed at the upper end of the threaded rod.

[0011] Furthermore, a throttle port is connected to the left side of the valve cylinder, and an air inlet is connected to the bottom of the valve cylinder. The inner end of the air inlet is located at the bottom of the piston cylinder, and the inner end of the throttle port is located on the side of the connecting column.

[0012] Furthermore, the rubber ring is made of ethylene propylene rubber, and the compression spring is made of durable stainless steel.

[0013] Furthermore, the outer side of the upper ring abuts against the inner wall of the valve cylinder.

[0014] Compared with related technologies, the one-way throttle valve flow fine control structure proposed in this utility model has the following beneficial effects:

[0015] In this invention, a one-way throttle valve with fine flow control structure is described. Through the one-way valve body assembly, a rubber ring on the outer side of the piston cylinder abuts against the inner wall of the valve cylinder, achieving a sealing relationship. The rubber ring has an arc-shaped outer surface, and multiple compression springs are arranged inside the rubber ring. The rebound force of the compression springs holds the rubber ring against the valve cylinder, preventing insufficient elasticity of the rubber ring over long-term use, which could lead to insufficient sealing between the outer wall of the rubber ring and the inner wall of the valve cylinder. When gas flows upward from the inlet, the compression springs contract under the pushing force of the gas, creating a gap between the rubber ring and the inner wall of the valve cylinder, allowing the gas to pass smoothly. When gas flows in from the throttle port, due to the concave arc surface of the rubber ring, the abutment between the side of the rubber ring and the inner wall of the valve cylinder becomes even closer under the pushing force of the gas, resulting in a one-way flow throttling state. The combination of the rubber ring and multiple springs in the one-way valve body assembly ensures excellent sealing performance of the rubber ring even after long-term use, enhancing its practicality. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a one-way throttle valve flow fine control structure proposed in this utility model;

[0017] Figure 2 This is a three-dimensional cross-sectional view of a one-way throttle valve flow fine control structure proposed in this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the internal components of a one-way throttle valve flow fine control structure proposed in this utility model;

[0019] Figure 4 A three-dimensional structural breakdown diagram of the one-way valve body assembly. Figure 1 ;

[0020] Figure 5 A three-dimensional structural breakdown diagram of the one-way valve body assembly. Figure 2 .

[0021] In the diagram: 1. Valve cylinder; 2. Air inlet; 3. Throttling port; 4. Throttling fine control component; 41. Threaded rod; 42. Handle; 43. Turntable; 44. Connecting column; 45. Sealing piston; 5. One-way valve body assembly; 51. Piston cylinder; 52. Connecting rod; 53. Rubber ring; 54. Lower ring; 55. Upper ring; 56. Round hole; 57. Compression spring; 58. Magnetic chuck. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Reference Figure 1-5 A one-way throttle valve flow fine control structure includes a valve cylinder 1, inside which a throttle fine control component 4 and a one-way valve body component 5 are arranged; the one-way valve body component 5 includes a piston cylinder 51, and a connecting rod 52 is fixedly installed circumferentially on the side wall of the piston cylinder 51. The outer end of the connecting rod 52 is fixedly connected to the inner wall of the valve cylinder 1. A rubber ring 53 is arranged on the outer wall of the piston cylinder 51. A lower ring 54 is fixedly connected to the lower side of the rubber ring 53. An upper ring 55 is fixedly connected to the upper side of the rubber ring 53. A compression spring 57 is fixedly connected to the inner side of the upper ring 55. A magnetic chuck 58 is fixedly connected to the inner end of the compression spring 57. The magnetic chuck 58 is attracted to the outer wall of the piston cylinder 51.

[0024] With the above-mentioned configuration, the rebound force provided by the compression spring 57 allows the upper side of the rubber ring 53 to adhere to the inner wall of the valve cylinder 1, avoiding the situation of insufficient toughness due to rubber aging. Furthermore, by utilizing the combined design of the compression spring 57 and the rubber ring 53, the sealing performance of the rubber ring 53 can be maintained under long-term use. The magnetic chuck 58 allows the inner end of the compression spring 57 to be attracted to the outer wall of the piston cylinder 51, providing a support point for the inner end of the compression spring 57.

[0025] In this method, the rubber ring 53 is made of ethylene propylene rubber, and the compression spring 57 is made of durable stainless steel.

[0026] Through the above-mentioned design, ethylene propylene rubber material has excellent weather resistance, ozone resistance, and heat resistance. Its molecular structure is stable, with the main chain composed of chemically stable saturated hydrocarbons and only weak unsaturated double bonds on the side groups. Therefore, it has a strong resistance to aging factors such as ozone, ultraviolet rays, and heat. Even after long-term use in outdoor environments, it is not prone to aging phenomena such as cracking and hardening, resulting in a long service life.

[0027] In this configuration, the outer side of the upper ring 55 abuts against the inner wall of the valve cylinder 1.

[0028] With the above configuration, the upper ring 55 is the upper edge of the rubber ring 53, so that the upper edge of the rubber ring 53 abuts against the inner wall of the valve cylinder 1.

[0029] In this method, the throttling fine control component 4 includes a threaded rod 41, which is threaded through to the inside of the valve cylinder 1. A turntable 43 is fixedly installed on the lower side of the threaded rod 41. A connecting column 44 is rotatably installed on the lower end of the turntable 43. A sealing piston 45 is fixedly installed on the lower end of the connecting column 44. The sealing piston 45 slides in contact with the inner wall of the piston cylinder 51.

[0030] With the above configuration, when the threaded rod 41 is rotated, it is connected to the valve cylinder 1 by a screw drive, which in turn drives the sealing piston 45 at the lower end of the threaded rod 41 to move up and down inside the valve cylinder 1. The sealing piston 45 then slides inside the piston cylinder 51. When the sealing piston 45 slides to the upper side of the piston cylinder 51, a gap is created between the bottom of the sealing piston 45 and the piston cylinder 51. At this time, after fluid is introduced from the throttle port 3, the fluid can flow through the gap between the sealing piston 45 and the upper side of the piston cylinder 51, and then flow out from the lower side of the round hole 56 on the lower side of the piston cylinder 51, and finally flow out from the air inlet 2. At this time, by controlling the size of the gap between the bottom of the sealing piston 45 and the piston cylinder 51, the flow rate when passing through the air inlet 2 can be controlled.

[0031] In this configuration, a circular hole 56 is provided at the bottom of the piston cylinder 51.

[0032] With the above-described configuration, the circular hole 56 can provide a passage for sealing the piston 45 when it is open.

[0033] In this configuration, a handle 42 is fixedly mounted on the upper end of the threaded rod 41.

[0034] With the above-mentioned settings, the handle 42 is turned by hand. The threaded rod 41 is rotated by the hand handle 42. The sliding distance of the threaded rod 41 is consistent with the sliding distance of the sealing piston 45 inside the valve cylinder 1. By controlling the sliding distance of the sealing piston 45, the distance between the bottom of the sealing piston 45 and the upper side of the piston cylinder 51 can be controlled equivalently, thereby achieving precise control of the opening size of the piston cylinder 51.

[0035] In this configuration, a throttle port 3 is connected to the left side of the valve cylinder 1, and an air inlet 2 is connected to the bottom of the valve cylinder 1. The inner end of the air inlet 2 is located at the bottom of the piston cylinder 51, and the inner end of the throttle port 3 is located on the side of the connecting column 44.

[0036] With the above configuration, the air inlet 2 is the unidirectional air intake direction of this utility model, and the throttling port 3 is the unidirectional flow control air intake direction.

[0037] The working principle of the one-way throttle valve flow fine control structure provided by this utility model is as follows:

[0038] In operation, when gas flows upward from the inlet 2, it pushes the rubber ring 53 inside the piston cylinder 51, creating a gap between it and the inner wall of the valve cylinder 1, allowing the gas to pass smoothly. When gas flows in from the throttle port 3, due to the concave arc surface of the rubber ring 53, the gas pushes the rubber ring 53, making its side more closely contact with the inner wall of the valve cylinder 1. This is a one-way flow-blocking state. By rotating the handle 42 on the threaded rod 41, the sealing piston 45 can be moved up and down inside the piston cylinder 51, thereby adjusting the gap between the bottom of the sealing piston 45 and the piston cylinder 51, achieving precise flow control. The rubber ring 53 is made of ethylene propylene rubber, which has excellent weather resistance, ozone resistance, and heat resistance, ensuring stability and durability over long-term use. This design, through ingenious structural combination design, achieves precise control and adjustment of the flow of the one-way throttle valve, while improving the service life and reliability of the device. In practical applications, the position of the threaded rod 41 can be adjusted as needed to change the gap between the sealing piston 45 and the piston cylinder 51, thereby adapting to different flow requirements.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fine flow control structure of a one-way throttle valve, characterized by, Including the valve cylinder (1), the throttle fine regulation assembly (4) and the one-way valve body assembly (5) are arranged inside the valve cylinder (1); The one-way valve body assembly (5) includes a piston cylinder (51), a connecting rod (52) is fixedly installed on the circumferential equidistant side wall of the piston cylinder (51), the outer side end of the connecting rod (52) is fixedly connected with the inner wall of the valve cylinder (1), a rubber ring (53) is arranged on the outer side wall of the piston cylinder (51), a lower ring (54) is fixedly connected to the lower side of the rubber ring (53), an upper ring (55) is fixedly connected to the upper side of the rubber ring (53), a compression spring (57) is fixedly connected to the inner side of the upper ring (55), a magnetic suction disc (58) is fixedly connected to the inner side end of the compression spring (57), and the magnetic suction disc (58) is adsorbed on the outer wall of the piston cylinder (51).

2. The fine flow control structure of a one-way throttling valve according to claim 1, wherein The throttle fine regulation assembly (4) includes a threaded rod (41), the threaded rod (41) is screwed through to the inside of the valve cylinder (1), a rotating disc (43) is fixedly installed on the lower side of the threaded rod (41), a connecting column (44) is rotatably installed on the lower end of the rotating disc (43), a sealing piston (45) is fixedly installed on the lower end of the connecting column (44), and the sealing piston (45) is in sliding contact with the inner wall of the piston cylinder (51).

3. The fine flow control structure of a one-way throttling valve according to claim 1, wherein The bottom of the piston cylinder (51) is provided with a circular hole (56).

4. The fine flow control structure of a one-way throttling valve according to claim 2, wherein The upper end of the threaded rod (41) is fixedly installed with a rotating handle (42).

5. The fine flow control structure of a one-way throttling valve according to claim 1, wherein The left side of the valve cylinder (1) is communicated and installed with a throttle port (3), the bottom of the valve cylinder (1) is communicated and installed with an air inlet (2), the inner side end of the air inlet (2) is located at the bottom of the piston cylinder (51), and the inner side end of the throttle port (3) is located at the side of the connecting column (44).

6. The fine flow control structure of a one-way throttling valve according to claim 1, wherein The rubber ring (53) is made of ethylene-propylene rubber material, and the compression spring (57) is made of durable stainless steel material.

7. The fine flow control structure of a one-way throttling valve according to claim 1, wherein The outer side of the upper ring (55) abuts against the inner wall of the valve cylinder (1).

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