Adjustable throttle valve

Abstract

The utility model discloses an adjustable throttle valve which comprises a valve body, the valve body is composed of a first connecting pipe and a second connecting pipe, and a columnar cavity and a columnar groove are formed in the first connecting pipe; the throttling mechanism comprises a sealing plate horizontally arranged in the columnar cavity, the lower end of the sealing plate is fixedly connected with a throttling column, and the sealing plate and the throttling column are both matched with the columnar groove; and the moving mechanism is used for moving the sealing plate up and down, the throttling column is composed of a plurality of piston columns with different circle radiuses, the moving mechanism comprises a piston groove formed in the top in the columnar cavity, and a columnar piston capable of sliding up and down is arranged in the piston groove. According to the throttling valve, the sealing plate is used in cooperation with the throttling column, the fluid flow is adjusted, different flow requirements are met, in addition, adjustment is convenient, and the adjustment efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of throttle valves, in particular to an adjustable throttle valve. Background Art

[0002] A throttle valve is a valve that controls the flow of a fluid by changing the throttle section or throttle length. The throttle valve adjusts the flow and pressure by changing the cross-sectional area of ​​the channel. The throttle valve is used to reduce the pressure of the medium when the pressure drop is extremely large.

[0003] During the use of traditional throttle valves, threaded connections are generally used to drive the sealing part to move up and down. However, due to the high pressure inside the valve body, in order to ensure better self-locking properties of the threaded connection, the density of the thread is relatively high. In this way, multiple turns of twisting are required to allow the seal to move a smaller stroke, and the adjustment efficiency is low. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an adjustable throttle valve. The throttle valve uses a sealing plate in conjunction with a throttling column to adjust the fluid flow rate to meet different flow requirements. In addition, it is more convenient to adjust and has a higher efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An adjustable throttle valve comprises a valve body, wherein the valve body is composed of a first connecting tube and a second connecting tube, wherein the first connecting tube has a columnar cavity and a columnar groove inside; a throttling mechanism, wherein the throttling mechanism comprises a sealing plate horizontally arranged in the columnar cavity, wherein a throttling column is fixedly connected to the lower end of the sealing plate, and the sealing plate and the throttling column are matched with the columnar groove; and a moving mechanism, wherein the moving mechanism is used to move the sealing plate up and down.

[0007] Preferably, the throttling column is composed of a plurality of piston columns with different circle radii.

[0008] Preferably, the moving mechanism includes a piston groove opened at the top of the columnar cavity, a columnar piston that can slide up and down is arranged in the piston groove, the lower end of the columnar piston extends into the columnar cavity and is fixedly connected to the upper end of the sealing plate, the upper end of the columnar piston is fixedly connected to a rectangular rod, and the upper end of the rectangular rod extends to the outside.

[0009] Preferably, a pressing plate is fixedly connected to the upper end of the rectangular rod, and the lower end of the pressing plate is elastically connected to the upper end of the first connecting tube via a first spring.

[0010] Preferably, a limiting mechanism is also included, which includes a rectangular block fixedly connected, a sliding groove is opened on the right side of the rectangular block, a wedge block that can slide left and right is arranged in the sliding groove, the left side of the wedge block is elastically connected to the left inner wall of the sliding groove through a second spring, a pull rod is fixedly connected to the left side of the wedge block, the left end of the pull rod passes through the sliding groove and is fixedly connected to a pull ring.

[0011] Preferably, a plurality of limiting grooves are provided on the left side of the rectangular rod, and the wedge-shaped block cooperates with the plurality of limiting grooves.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] A throttling column is provided, which is composed of multiple piston columns with different circular radii, so that it is adjustable to meet the different needs of users. In addition, when adjusting, it is only necessary to press the pressure plate and limit it to a suitable position to meet the user's adjustment needs. The adjustment is more convenient on the basis of ensuring self-locking. Compared with the existing twisting adjustment, the adjustment efficiency of this solution is higher, and when the flow channel needs to be fully opened later, it is only necessary to pull the pull ring to the left. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of an adjustable throttle valve proposed by the utility model;

[0015] Figure 2 for Figure 1 Schematic cross-sectional view of ;

[0016] Figure 3 for Figure 2 Enlarged view of point A.

[0017] In the figure: 1 first connecting pipe, 2 second connecting pipe, 3 rectangular block, 4 rectangular rod, 5 pressure plate, 6 first spring, 7 columnar piston, 8 sealing plate, 9 columnar cavity, 10 columnar groove, 11 throttling column, 12 piston groove, 13 limit groove, 14 second spring, 15 wedge block, 16 pull rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 3 , an adjustable throttle valve, including a valve body, the valve body is composed of a first connecting pipe 1 and a second connecting pipe 2, the other end of the first connecting pipe 1 and the second connecting pipe 2 is also provided with a pipeline connection room not shown in the figure, which is used to be installed in the flow channel of the pipeline, and the first connecting pipe 1 has a cylindrical cavity 9 and a cylindrical groove 10 inside;

[0020] Among them, it also includes a throttling mechanism, the throttling mechanism includes a sealing plate 8 horizontally arranged in a columnar cavity 9, a throttling column 11 is fixedly connected to the lower end of the sealing plate 8, the sealing plate 8 and the throttling column 11 are matched with the columnar groove 10, and the throttling column 11 is composed of a plurality of piston columns with different circular radii;

[0021] Among them, it also includes a moving mechanism, which is used to move the sealing plate 8 up and down. The moving mechanism includes a piston groove 12 opened at the top of the columnar cavity 9, and a columnar piston 7 that can slide up and down is arranged in the piston groove 12. The lower end of the columnar piston 7 extends into the columnar cavity 9 and is fixedly connected to the upper end of the sealing plate 8. The upper end of the columnar piston 7 is fixedly connected to a rectangular rod 4, and the upper end of the rectangular rod 4 extends to the outside. The upper end of the rectangular rod 4 is fixedly connected to a pressing plate 5, and the lower end of the pressing plate 5 is elastically connected to the upper end of the first connecting pipe 1 through a first spring 6;

[0022] Among them, it also includes a limiting mechanism, which includes a rectangular block 3 fixedly connected, a sliding groove is opened on the right side of the rectangular block 3, a wedge block 15 that can slide left and right is arranged in the sliding groove, the left side of the wedge block 15 is elastically connected to the left inner wall of the sliding groove through a second spring 14, a pull rod 16 is fixedly connected to the left side of the wedge block 15, the left end of the pull rod 16 passes through the sliding groove and is fixedly connected with a pull ring, a plurality of limiting grooves 13 are opened on the left side of the rectangular rod 4, and the wedge block 15 cooperates with the plurality of limiting grooves 13.

[0023] In the utility model, when the flow of the valve body needs to be adjusted during use, it is only necessary to press the pressing plate 5, which will drive the rectangular rod 4 to move downward, and then the sealing plate 8 will move downward through the cylindrical piston 7, and finally the throttling column 11 will partially move downward, so that the throttling column 11 enters the cylindrical groove 10, and the piston columns with different radii of the throttling column 11 are inserted into the cylindrical groove 10 to meet the needs of different flow rates, and when the lower end surface of the sealing plate 8 contacts the inner bottom of the cylindrical cavity 9, the flow channel can be sealed;

[0024] During the above-mentioned downward movement process, the first spring 6 is compressed, and each time a different piston column is inserted into the columnar groove 10, the different limit grooves 13 just correspond to the wedge blocks 15 to achieve limit. That is, when adjusting, it is only necessary to press the pressure plate 5 and limit it at a suitable position to meet the user's adjustment needs. On the basis of ensuring self-locking, the adjustment is more convenient. When the flow channel needs to be fully opened, it is only necessary to pull the pull ring to the left to let the wedge block 15 leave the limit groove 13. Under the elastic action of the first spring 6, the pressure plate 5 will drive the rectangular rod 4, the sealing plate 8 and the throttling column 11 to move back.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable throttle valve, characterized in that: include: A valve body, the valve body being composed of a first connecting pipe (1) and a second connecting pipe (2), wherein the first connecting pipe (1) is internally formed with a columnar cavity (9) and a columnar groove (10); A throttling mechanism, the throttling mechanism comprising a sealing plate (8) horizontally arranged in a columnar cavity (9), a throttling column (11) being fixedly connected to the lower end of the sealing plate (8), and the sealing plate (8) and the throttling column (11) are both matched with a columnar groove (10); A moving mechanism is used to move the sealing plate (8) up and down.

2. An adjustable throttle valve according to claim 1, characterized in that: The throttling column (11) is composed of a plurality of piston columns with different circle radii.

3. The adjustable throttle valve according to claim 1, characterized in that: The moving mechanism comprises a piston groove (12) opened at the top of the columnar cavity (9), a columnar piston (7) which can slide up and down is arranged in the piston groove (12), the lower end of the columnar piston (7) extends into the columnar cavity (9) and is fixedly connected to the upper end of the sealing plate (8), the upper end of the columnar piston (7) is fixedly connected to a rectangular rod (4), and the upper end of the rectangular rod (4) extends to the outside.

4. An adjustable throttle valve according to claim 3, characterized in that: The upper end of the rectangular rod (4) is fixedly connected to a pressing plate (5), and the lower end of the pressing plate (5) is elastically connected to the upper end of the first connecting pipe (1) via a first spring (6).

5. The adjustable throttle valve according to claim 3, characterized in that: The invention also includes a limiting mechanism, wherein the limiting mechanism includes a rectangular block (3) fixedly connected, a slide groove is provided on the right side of the rectangular block (3), a wedge block (15) that can slide left and right is arranged in the slide groove, the left side of the wedge block (15) is elastically connected to the left inner wall of the slide groove through a second spring (14), the left side of the wedge block (15) is fixedly connected to a pull rod (16), the left end of the pull rod (16) passes through the slide groove and is fixedly connected to a pull ring.

6. An adjustable throttle valve according to claim 5, characterized in that: A plurality of limiting grooves (13) are provided on the left side of the rectangular rod (4), and the wedge-shaped block (15) cooperates with the plurality of limiting grooves (13).

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