Special program-controlled pneumatic switch butterfly valve for VPSA oxygen production

Abstract

The utility model belongs to the technical field of pneumatic switch butterfly valves, and particularly relates to a special program-controlled pneumatic switch butterfly valve for VPSA oxygen production, which comprises a valve body, actuator fixing supports are fixedly connected to the upper surface of the valve body, and fixing columns are fixedly connected to the sides, away from each other, of the actuator fixing supports. A second inner sleeve column, an arc-shaped clamping plate, a second spring and the like are arranged, a two-way threaded rod drives the two moving columns to move, the moving columns drive the corresponding first outer sleeve columns to move, the two moving columns are fixed through the second inner sleeve column, the arc-shaped clamping plate and the second spring are arranged, and the fixing structure is arranged on the actuator fixing support. The first outer sleeve column drives the corresponding second outer sleeve column to move through the first inner sleeve column, and the second outer sleeve column drives the corresponding arc-shaped clamping plate to move through the second inner sleeve column, so that the two arc-shaped clamping plates on the same side are clamped on the corresponding oxygen conveying pipeline, a second spring is compressed, the valve body is positioned, and the valve body does not need to be supported manually; and the manual labor can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic switch butterfly valve technology, and in particular to a programmable pneumatic switch butterfly valve for VPSA oxygen production. Background Technology

[0002] VPSA oxygen concentrators are machines that produce oxygen. Their oxygen production principle is mainly based on an air compressor, which forces oxygen and nitrogen in the air through a molecular sieve. The difference in the adsorption capacity of the molecular sieve for oxygen and nitrogen in the air is used to separate the oxygen and nitrogen, thereby obtaining a high concentration of oxygen. Pneumatic switch butterfly valves need to be installed in the pipeline of VPSA oxygen concentrators.

[0003] However, in existing equipment, most pneumatic switch butterfly valves are fixed by squeezing two pipes together. Therefore, one worker is needed to assist in supporting the pneumatic switch butterfly valve while another worker performs the installation, which wastes manual labor. To address this, a programmable pneumatic switch butterfly valve specifically designed for VPSA oxygen production is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a programmable pneumatic switch butterfly valve specifically for VPSA oxygen production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a programmable pneumatic switch butterfly valve for VPSA oxygen production, comprising a valve body, an actuator fixing bracket fixedly connected to the upper surface of the valve body, a fixing column fixedly connected to the opposite side of the actuator fixing bracket, a moving groove provided on the upper surface of each fixing column, a fixing structure provided on the actuator fixing bracket, a pneumatic actuator fixedly connected to the upper surface of the actuator fixing bracket, and a connecting shaft fixedly connected to the output shaft of the pneumatic actuator.

[0006] As a further description of the above technical solution:

[0007] A valve stem is rotatably connected through the upper surface of the valve body. The upper surface of the valve stem is fixedly connected to one end of the connecting shaft. A butterfly plate is fixedly connected to the valve stem. Sealing rings are fixedly connected to the opposite side of the valve body.

[0008] As a further description of the above technical solution:

[0009] The fixed structure includes a bidirectional threaded rod, on which a movable column is threadedly connected to each other on opposite threads. Each movable column is slidably connected in a corresponding movable groove. A rotating disk is fixedly connected to one end of the bidirectional threaded rod.

[0010] As a further description of the above technical solution:

[0011] Each of the movable columns is fixedly connected to a first outer sleeve column on the opposite side, and a first inner sleeve column is slidably connected inside each first outer sleeve column. A first spring is fixedly connected to one side of the interior of each first outer sleeve column, and the other end of each first spring is fixedly connected to one side of the corresponding first inner sleeve column.

[0012] As a further description of the above technical solution:

[0013] Each of the first inner sleeve columns is fixedly connected to one side of a second outer sleeve column, and each of the second outer sleeve columns is slidably connected to a second inner sleeve column. Each of the second inner sleeve columns is fixedly connected to one side of an arc-shaped clamping plate, and each of the arc-shaped clamping plates is fixedly connected to one side of an anti-slip pad.

[0014] As a further description of the above technical solution:

[0015] A second spring is fixedly connected to one side of the inner side of each of the second outer sleeve columns, and the other end of each second spring is fixedly connected to one side of the corresponding second inner sleeve column.

[0016] This utility model has the following beneficial effects:

[0017] 1. Compared with existing technologies, this programmable pneumatic switch butterfly valve for VPSA oxygen production uses a movable column, a bidirectional threaded rod, a rotating disc, a second outer sleeve column, a second inner sleeve column, an arc-shaped clamping plate, and a second spring to place the valve body between two oxygen delivery pipelines. Rotating the rotating disc drives the bidirectional threaded rod, which in turn moves the two movable columns. These movable columns move the corresponding first outer sleeve column, which in turn moves the corresponding second outer sleeve column via the first inner sleeve column. The second outer sleeve column, in turn, moves the corresponding arc-shaped clamping plate via the second inner sleeve column. This causes the two arc-shaped clamping plates on the same side to clamp onto the corresponding oxygen delivery pipelines and compress the second spring, thus positioning the valve body. This eliminates the need for manual assistance in supporting the valve body, reducing labor costs.

[0018] 2. Compared with the existing technology, the programmable pneumatic switch butterfly valve for VPSA oxygen production, by setting a first outer sleeve, a first inner sleeve, and a first spring, etc., after positioning, the two oxygen delivery pipes are brought closer to the valve body by bolts. At the same time, the arc-shaped clamping plate drives the corresponding second inner sleeve to move. The second inner sleeve drives the corresponding first inner sleeve to slide in the first outer sleeve through the second outer sleeve and compresses the first spring, which makes it convenient for the operator to adjust the distance between the two oxygen delivery pipes, so that the two oxygen delivery pipes fit tightly against the corresponding side of the valve body. Attached Figure Description

[0019] Figure 1This is a three-dimensional structural diagram of a programmable pneumatic switch butterfly valve for VPSA oxygen production proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the fixing structure of a programmable pneumatic switch butterfly valve for VPSA oxygen production proposed in this utility model;

[0021] Figure 3 This is an exploded view of the fixed structure of a programmable pneumatic switch butterfly valve for VPSA oxygen production proposed in this utility model;

[0022] Figure 4 Exploded view of the second outer sleeve and the second inner sleeve of a VPSA oxygen generator-specific programmable pneumatic switch butterfly valve proposed in this utility model;

[0023] Figure 5 This is a cross-sectional view of the valve body of a VPSA oxygen generator-specific programmable pneumatic switch butterfly valve proposed in this utility model.

[0024] Legend:

[0025] 1. Valve body; 2. Actuator mounting bracket; 3. Pneumatic actuator; 4. Valve stem; 5. Butterfly plate; 6. Moving groove; 7. Fixed column; 8. Fixed structure; 801. Moving column; 802. Bidirectional threaded rod; 803. Rotating disc; 804. First outer sleeve column; 805. First inner sleeve column; 806. Second outer sleeve column; 807. Second inner sleeve column; 808. First spring; 809. Arc-shaped clamp; 810. Second spring. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1 to 5This utility model provides a VPSA oxygen generator-specific programmable pneumatic switch butterfly valve, comprising a valve body 1, an actuator fixing bracket 2 fixedly connected to the upper surface of the valve body 1, fixing columns 7 fixedly connected to the opposite side of the actuator fixing bracket 2, a moving groove 6 opened on the upper surface of each fixing column 7, a fixing structure 8 provided on the actuator fixing bracket 2, a pneumatic actuator 3 fixedly connected to the upper surface of the actuator fixing bracket 2, a connecting shaft fixedly connected to the output shaft of the pneumatic actuator 3, a valve stem 4 rotatably connected through the upper surface of the valve body 1, a packing group provided between the valve stem 4 and the valve body 1, and an upper bushing, a lower bushing and a tapered roller bearing fixedly provided on the valve stem 4, which can effectively reduce friction and deviation and extend the service life of the valve, the upper surface of the valve stem 4 is fixedly connected to one end of the connecting shaft, a butterfly plate 5 is fixedly connected to the valve stem 4, and a sealing ring is fixedly connected to the opposite side of the valve body 1.

[0028] To achieve positioning, the fixing structure 8 includes a bidirectional threaded rod 802. Each bidirectional threaded rod 802 has a movable post 801 threadedly connected to its opposite threads. Each movable post 801 is slidably connected within a corresponding movable groove 6. One end of the bidirectional threaded rod 802 is fixedly connected to a rotating disk 803. A first outer sleeve post 804 is fixedly connected to the side of each movable post 801 furthest from it. A first inner sleeve post 805 is slidably connected within each first outer sleeve post 804. A second outer sleeve post 806 is fixedly connected to one side of each first inner sleeve post 805. A second inner sleeve post 807 is slidably connected inside each second outer sleeve post 806. A second spring 810 is fixedly connected to one side of the corresponding second inner sleeve post 807. Each side of the second inner sleeve column 807 is fixedly connected to an arc-shaped clamping plate 809, and each side of the arc-shaped clamping plate 809 is fixedly connected to an anti-slip pad. The valve body 1 is placed between two oxygen delivery pipes, and then the rotating disk 803 is rotated. The rotating disk 803 drives the bidirectional threaded rod 802 to rotate, and the bidirectional threaded rod 802 drives the two moving columns 801 to move. The moving columns 801 drive the corresponding first outer sleeve column 804 to move. The first outer sleeve column 804 drives the corresponding second outer sleeve column 806 to move through the first inner sleeve column 805. The second outer sleeve column 806 drives the corresponding arc-shaped clamping plate 809 to move through the second inner sleeve column 807, so that the two arc-shaped clamping plates 809 on the same side are clamped on the corresponding oxygen delivery pipes and the second spring 810 is compressed to position the valve body 1. No manual assistance is required to support the valve body 1, which helps to reduce manual labor.

[0029] To facilitate adjustment of the distance between the two oxygen delivery pipes, a first spring 808 is fixedly connected to one side of the interior of each first outer sleeve column 804. The other end of each first spring 808 is fixedly connected to one side of the corresponding first inner sleeve column 805. After positioning, the two oxygen delivery pipes are brought closer to the valve body 1 by bolts. At the same time, the arc-shaped clamp 809 drives the corresponding second inner sleeve column 807 to move. The second inner sleeve column 807 drives the corresponding first inner sleeve column 805 to slide inside the first outer sleeve column 804 through the second outer sleeve column 806, and compresses the first spring 808. This allows the operator to adjust the distance between the two oxygen delivery pipes so that the two oxygen delivery pipes fit tightly against the corresponding side of the valve body 1.

[0030] Working principle: Place valve body 1 between two oxygen delivery pipelines, then rotate rotating disk 803. Rotating disk 803 drives bidirectional threaded rod 802 to rotate, which in turn drives two moving columns 801 to move. Moving column 801 drives the corresponding first outer sleeve column 804 to move. The first outer sleeve column 804 drives the corresponding second outer sleeve column 806 to move via the first inner sleeve column 805. The second outer sleeve column 806 drives the corresponding arc-shaped clamping plate 809 to move via the second inner sleeve column 807, so that the two arc-shaped clamping plates 809 on the same side clamp onto the corresponding oxygen delivery pipelines and press them down. The second spring 810 is compressed to position the valve body 1, eliminating the need for manual support and reducing labor costs. After positioning, the two oxygen delivery pipes are brought closer to the valve body 1 by bolts. Simultaneously, the arc-shaped clamp 809 moves the corresponding second inner sleeve column 807. The second inner sleeve column 807, through the second outer sleeve column 806, drives the corresponding first inner sleeve column 805 to slide within the first outer sleeve column 804, compressing the first spring 808. This allows the operator to adjust the distance between the two oxygen delivery pipes, ensuring that they fit tightly against the corresponding side of the valve body 1.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A programmable pneumatic switch butterfly valve for VPSA oxygen production, comprising a valve body (1), characterized in that: An actuator fixing bracket (2) is fixedly connected to the upper surface of the valve body (1). A fixing column (7) is fixedly connected to the side of the actuator fixing bracket (2) that is far away from each other. A moving groove (6) is opened on the upper surface of each fixing column (7). A fixing structure (8) is provided on the actuator fixing bracket (2). A pneumatic actuator (3) is fixedly connected to the upper surface of the actuator fixing bracket (2). A connecting shaft is fixedly connected to the output shaft of the pneumatic actuator (3).

2. The VPSA oxygen generator-specific programmable pneumatic switch butterfly valve according to claim 1, characterized in that: A valve stem (4) is rotatably connected through the upper surface of the valve body (1). The upper surface of the valve stem (4) is fixedly connected to one end of the connecting shaft. A butterfly plate (5) is fixedly connected to the valve stem (4). Sealing rings are fixedly connected to the opposite side of the valve body (1).

3. The VPSA oxygen generator-specific programmable pneumatic switch butterfly valve according to claim 1, characterized in that: The fixed structure (8) includes a bidirectional threaded rod (802), and each of the opposite threads of the bidirectional threaded rod (802) is threaded with a movable column (801). Each movable column (801) is slidably connected in a corresponding movable groove (6). One end of the bidirectional threaded rod (802) is fixedly connected to a rotating disk (803).

4. The VPSA oxygen generator-specific programmable pneumatic switch butterfly valve according to claim 3, characterized in that: Each of the movable columns (801) is fixedly connected to a first outer sleeve column (804) on the opposite side. Each of the first outer sleeve columns (804) is slidably connected to a first inner sleeve column (805). Each of the first outer sleeve columns (804) is fixedly connected to a first spring (808) on one side inside. The other end of each first spring (808) is fixedly connected to one side of the corresponding first inner sleeve column (805).

5. A programmable pneumatic switch butterfly valve for VPSA oxygen production according to claim 4, characterized in that: Each of the first inner sleeve column (805) is fixedly connected to one side of a second outer sleeve column (806), and each of the second outer sleeve columns (806) is slidably connected to a second inner sleeve column (807). Each of the second inner sleeve columns (807) is fixedly connected to one side of an arc-shaped clamping plate (809), and each of the arc-shaped clamping plates (809) is fixedly connected to one side of an anti-slip pad.

6. A programmable pneumatic switch butterfly valve for VPSA oxygen production according to claim 5, characterized in that: Each of the second outer sleeve posts (806) has a second spring (810) fixedly connected to one side of its interior, and the other end of each second spring (810) is fixedly connected to one side of the corresponding second inner sleeve post (807).

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