Extrusion hose valve

Abstract

The utility model relates to an extrusion hose valve, and belongs to the technical field of valves. The extrusion hose valve is composed of a valve shell, a hose, an upper extrusion part, a lower extrusion part, a clamping key, a valve rod, a hand wheel and a valve cover. The hose penetrates through the valve shell and is located between the upper extrusion component and the lower extrusion component. The upper extrusion part is mounted on the slideway of the lower extrusion part and can slide up and down; external threads of the valve rod are matched with internal threads of an upper cross beam of the lower extrusion part; the lower part of the valve rod is connected with the upper extrusion part through a clamping key and can rotate; the rotating hand wheel drives the valve rod to rotate so as to push the upper extrusion part to move downwards and the lower extrusion part to move upwards to extrude the hose to close the hose; the extrusion on the hose can be released by reversely rotating the hand wheel, and the hose restores. In the opening and closing process of the extrusion hose valve, a flow channel deforms, scale on the inner wall falls off and is discharged along with fluid, and the situation that the valve is jammed and not tightly closed is avoided; meanwhile, the medium only makes contact with the inner wall of the hose and can also be used for corroding the medium.

Description

Technical Field

[0001] The utility model relates to an extrusion hose valve, which is mainly used for opening and closing pipelines that convey media prone to scaling, and can also be used for opening and closing pipelines that convey media prone to corrosion, and belongs to the field of valve technology. Background Art

[0002] Valves are primarily categorized by structure into globe valves, gate valves, ball valves, butterfly valves, and diaphragm valves. When used to open and close pipelines carrying media susceptible to scaling, scaling is prone to buildup on the sealing surfaces, raft plates, and other areas of contact with the media. Even with frequent opening and closing, scaling resists removal from the sealing surfaces or disc. Internal scaling can lead to valves becoming inoperable or loosely closed, impacting normal operation of the pipeline system or requiring shutdown for maintenance. Summary of the Invention

[0003] The present invention addresses the technical problem of providing an extruded hose valve, filling a gap in existing technology. The extruded hose valve primarily consists of a hose, a valve housing, and an extrusion mechanism. The hose is installed in the valve housing and connected to the pipeline via the housing's flange. The hose's flange is clamped between the valve flange and the pipeline flange, providing a seal due to the pressure exerted by the connecting bolts. The hose passes through the extrusion mechanism and deforms and closes under the extrusion mechanism, blocking the flow of the medium. When the extrusion mechanism is released, the hose returns to its original shape under its own elastic force and the pressure of the medium, allowing the medium to flow again. During the opening and closing process of the extruded hose valve, the hose deforms, causing scale on the hose's inner wall to break off and fall off, and then be discharged from the valve under the influence of the medium. During operation of the pipeline system, the extruded hose valve only needs to be opened and closed periodically to ensure that the inner wall of the hose is free of scale, thereby blocking the flow of the medium and preventing the valve from being properly closed, making it impossible to repair the pipeline and equipment. Because the hose of the extruded hose valve is made of rubber, it has excellent corrosion resistance and can also be used for corrosive media.

[0004] To achieve the above objectives, the present invention provides the following technical solutions.

[0005] The utility model relates to an extrusion hose valve, which is composed of a valve shell, a hose, an upper extrusion component, a lower extrusion component, a key, a valve stem, a hand wheel and a valve cover. The valve housing has flanges at both ends, and an extrusion component can be installed in the middle; the hose passes through the valve housing, and the flanges at both ends cover the flange surface; at the same time, the hose is between the upper extrusion component and the lower extrusion component; the upper extrusion component is in the shape of an "I", and the lower extrusion component is in the shape of a "mouth". The upper extrusion component is installed on the slide of the lower extrusion component and can slide up and down; the middle of the upper crossbeam of the lower extrusion component is opened and has an internal thread; the valve stem has an external thread and cooperates with the internal thread in the middle hole of the upper crossbeam of the lower extrusion component; the lower part of the valve stem is connected to the upper extrusion component by a key and can rotate relative to the key; rotating the handwheel to drive the valve stem to rotate can push the upper extrusion component downward, and at the same time the lower extrusion component moves upward, forming an extrusion on the hose, and the hose is closed; rotating the handwheel in the opposite direction can drive the upper extrusion component upward, and at the same time the lower extrusion component moves downward, releasing the extrusion of the hose, and the hose returns to its original shape under the combined action of its own elastic force and the internal medium pressure.

[0006] The beneficial effects of the squeeze hose valve of the utility model are as follows: during the opening and closing process of the squeeze hose valve, the hose is deformed, scale on the inner wall of the hose is broken and falls off, and is discharged from the valve under the drive of the medium. Therefore, during the operation of the pipeline system, it only needs to be opened and closed regularly to ensure that the inner wall of the hose of the squeeze hose valve is free of scale, which can block the flow of the medium and avoid the situation where the pipeline and equipment cannot be repaired due to the valve not being closed tightly; since the hose of the squeeze hose valve is made of rubber, it has good anti-corrosion performance and can therefore also be used for corrosive media. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Figure 1 is a radial cross-sectional view of the squeeze hose valve; Figure 2 is a transverse cross-sectional view of the squeeze hose valve; Figure 3 This is a front view of the extrusion hose valve. It should be noted that the structures, proportions, and sizes depicted in the drawings within this specification are intended solely to facilitate understanding and reading by those familiar with the art, and are not intended to limit the conditions under which this utility model may be implemented. Therefore, they are of no technical significance. Any structural modifications, proportional changes, size adjustments, or increases or decreases in automation, provided they do not affect the efficacy and objectives of this utility model, are within the scope of the technical disclosure disclosed herein.

[0008] In the attached Figure 1 and attached Figure 2In the middle, the valve housing (1); the hose (2); the lower extrusion component (3); the upper extrusion component (4); the key (5); the valve cover (6); the valve stem (7); the handwheel (8); the handwheel fixing nut (9); the valve cover fixing bolt (10);

[0009] In the attached Figure 3 In the figure, the valve housing (1); the hose (2); the valve cover (6); the valve stem (7); the handwheel (8); the handwheel fixing nut (9); the valve cover fixing bolt (10); and the hollow hole (11). DETAILED DESCRIPTION

[0010] In the attached Figure 1 and attached Figure 2 In the embodiment, the valve housing (1) is a tubular structure with an extrusion mechanism installation position in the middle, with flanges at both ends, and the material can be plastic, cast iron, cast steel, stainless steel, etc.; the hose (2) is a round hose with flanges at both ends, the tube body passes through the tubular structure in the middle of the valve housing (1), and the flanges at both ends are tightly attached to the flange surfaces at both ends of the valve housing (1). When the valve is installed on the pipeline, the flanges of the hose (2) are pressed tightly by the valve flange and the pipeline flange under the action of the installation fastening bolts, thereby playing a sealing role; the upper extrusion component (4) is a "I" structure, with slots at both ends and the top, and the contact position with the hose is The cross section of the lower extrusion component (3) is a triangle with a chamfered tip; the lower extrusion component (3) is a "mouth" structure with slideways on both sides, an internal threaded hole is opened in the middle of the upper crossbeam, and the cross section of the lower crossbeam is a triangle with a chamfered tip; the slots at both ends of the upper extrusion component (4) are installed in conjunction with the slideways on both sides of the lower extrusion component (3) to form a "sun" structure with a horizontal bar in the middle that can slide up and down; the valve stem (7) has an external thread and can be installed in conjunction with the internal threaded hole in the middle of the upper crossbeam of the lower extrusion component (3), and the bottom of the valve stem (7) has an annular groove; the valve stem (7) rotates through the lower The internal threaded hole in the middle of the upper crossbeam of the extrusion component (3) and the annular groove at the bottom are connected to the top groove of the upper extrusion component (4) through a key (5); the valve stem (7) can rotate in the semi-open groove of the key (5); the valve cover (6) has a circular hole in the middle, which is connected to the valve housing (1) with a valve cover fixing bolt (10) after being passed through the valve stem (7); the handwheel (8) is installed on the top of the valve stem (7) and fixed with a handwheel fixing nut (9); the lower extrusion component (3), the upper extrusion component (4), the key (5), the valve stem (7), the handwheel (8) and the handwheel fixing nut are connected. The nut (9) constitutes an extrusion component; rotating the hand wheel (8) can make the upper extrusion component (4) in the extrusion component move downward, while the lower extrusion component (3) moves upward, generating an extrusion force on the hose (2) until the hose (2) is deformed and the inner wall is closed, thereby closing the valve; rotating the hand wheel (8) in the opposite direction can make the upper extrusion component (4) in the extrusion component move upward, while the lower extrusion component (3) moves downward, gradually reducing the extrusion force on the hose (2), and the hose (2) returns to its original shape under the action of its own elastic force and the pressure of the internal medium, thereby opening the valve.

[0011] In the attached Figure 3 In the embodiment, a hollow hole (11) is opened on the valve housing (1). If the hose (2) leaks, the medium flows out from the hollow hole (11), which can be discovered in time and the valve can be repaired. In addition, the hose (2) can be vibrated through the hollow hole (11) with a stick-shaped tool to promote the shedding of the scale layer inside the hose (2).

Claims

1. A squeeze hose valve, characterized in that: A hose (2) is installed inside a valve housing (1) with flanges at both ends; the lower extrusion component (3) is in the shape of a "mouth" and the upper extrusion component (4) is in the shape of a "one"; the upper extrusion component (4) is installed on the slideway of the lower extrusion component (3) and can slide up and down; the hose (2) is located between the lower extrusion component (3) and the upper extrusion component (4); an internal threaded hole is opened in the middle of the upper crossbeam of the lower extrusion component (3); the valve stem (7) has an external thread and is matched with the internal threaded hole in the middle of the upper crossbeam of the lower extrusion component (3); the lower part of the valve stem (7) is connected to the upper extrusion component through a key (5) and can rotate relative to the key (5); the hand wheel (8) is rotated ) can push the upper extrusion component (4) to move downward, while the lower extrusion component (3) moves upward, thereby squeezing the hose (2) until the hose (2) is closed; reverse rotation of the hand wheel (8) can drive the upper extrusion component (4) to move upward, while the lower extrusion component (3) moves downward, thereby releasing the squeezing of the hose (2), and the hose (2) returns to its original shape under the combined action of its own elastic force and the internal medium pressure.

2. The squeeze hose valve according to claim 1, wherein: The valve housing (1) with flange is an integrated structure.

3. The squeeze hose valve according to claim 1, wherein: The hose (2) is installed in the valve housing (1) with flange.

4. The squeeze hose valve according to claim 1, wherein: The hose (2) has flange-type flanging at both ends, and the flanging covers the flange surfaces at both ends of the valve housing (1).

5. The squeeze hose valve according to claim 1, wherein: The cross-section of the lower extrusion component (3) and the upper extrusion component (4) at the contact position with the hose is a chamfered triangular structure.

6. The squeeze hose valve according to claim 1, wherein: The valve housing (1) is provided with a hollow hole.

7. The squeeze hose valve according to claim 1, wherein: The lower extrusion component (3) and the upper extrusion component (4) are limited by the cooperation of the slide groove and the valve housing (1).

8. The squeeze hose valve according to claim 1, wherein: The valve stem (7) and the upper extrusion component (4) are connected via a key (5).

9. The squeeze hose valve according to claim 1, wherein: The key (5) is in the shape of a rectangular sheet and is cut into two halves along the central axis after a hole is opened in the middle.

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