High pressure quick shut-off valve

Abstract

The utility model discloses a high pressure quick cut -off valve, including the shell, the shell is opened in Z -shaped flow channel, Z -shaped flow channel middle part is opened with the taper groove, the taper groove is movably connected with the taper valve, the taper valve is fixedly connected with the valve rod, the valve rod is fixedly connected with the pull -out block, the shell is fixedly connected with the valve seat, the valve seat is opened in the slide, the valve rod is fixedly connected with the sliding block, the sliding block is connected in the slide with the sliding connection, the sliding block is provided with fixed assembly, fixed assembly is used for fixing the sliding block, the sliding block is fixedly connected with the release spring, the release spring fixedly connected in the slide inner wall, the utility model possesses the advantages of the release spring quick release taper valve to the valve is cut off fast, avoids causing the advantage of safety accident.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and more specifically, to a high-pressure fast shut-off valve. Background Technology

[0002] Valves are core devices in industrial pipeline systems that control the flow of fluids (liquids, gases, steam, or slurries). They achieve functions such as opening and closing, regulation, diversion, and backflow prevention by changing the cross-sectional area of ​​the flow channel or the flow direction. As the "throat" of the process industry, valve performance directly affects system safety, energy efficiency, and operating costs.

[0003] However, existing technologies have some problems: existing valves have a slow response time when closing, and cannot close the valve in time, which may lead to system overpressure, media leakage or equipment damage. Especially in emergency shut-off scenarios, they may cause safety accidents. Therefore, we propose a high-pressure fast shut-off valve. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for a high-pressure fast shut-off valve.

[0005] According to a first aspect of the present invention, a high-pressure quick-cut-off valve is provided, comprising a housing, a Z-shaped flow channel formed inside the housing, a conical groove formed in the middle of the Z-shaped flow channel, a conical valve movably connected in the conical groove, a valve stem fixedly connected to the conical valve, a pull block fixedly connected to the valve stem, a valve seat fixedly connected to the housing, a slide rail formed inside the valve seat, a slider fixedly connected to the valve stem, the slider slidably connected in the slide rail, a fixing component provided on the slider for fixing the slider, and a release spring fixedly connected to the slider, the release spring being fixedly connected to the inner wall of the slide rail.

[0006] Optionally, a guide plate is fixedly connected to the conical valve, rubber pads are fixedly connected to both sides of the guide plate, and a sealing gasket is fixedly connected to the slider.

[0007] Optionally, a limiting block is fixedly connected to the slider, a limiting groove is formed on the inner wall of the valve seat slide, and the limiting block is slidably connected in the limiting groove.

[0008] Optionally, the fixing component includes a locking block, the slider has a fixing groove, the locking block is slidably connected in the fixing groove, and the valve seat slide has a locking groove on its inner wall, the locking block is engaged in the locking groove.

[0009] Optionally, the fixing component further includes a fixing spring, one end of which is fixedly connected to the locking block, and the other end of which is fixedly connected to the inner wall of the slider fixing groove.

[0010] Optionally, the fixing component further includes a movable button, the valve seat has a slide groove, the movable button is slidably connected in the slide groove, and a return spring is fixedly connected to the movable button, the return spring being fixedly connected to the valve seat.

[0011] According to one embodiment of this disclosure, the conical valve is quickly released by a release spring, thereby shutting off the valve. By pressing the movable button, the movable button compresses the return spring and slides within the groove of the valve seat. This causes the movable button to push the locking block to compress the fixing spring and move it into the fixing groove of the locking block until the locking block is half retracted into the fixing groove. At this point, the lower part of the slider is chamfered. Under the pressure of the release spring, the locking block is quickly squeezed into the fixing groove. The slider then moves rapidly downward under the rebound force of the release spring, causing the valve stem and the conical valve to move downward until the conical groove is blocked, thereby quickly shutting off the valve.

[0012] The outer shell of this utility model has a Z-shaped flow channel. When the conical valve moves downward, the resistance it encounters under the action of the cone is small. At the same time, the medium flows into the valve from the head of the Z-shaped flow channel, so that the conical valve can be pushed by the medium during the movement, thereby moving quickly and further accelerating the valve shut-off.

[0013] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0015] Figure 1 This is a schematic diagram of the overall structure of a high-pressure fast-shutdown valve in one embodiment;

[0016] Figure 2 This is a cross-sectional view of the housing of a high-pressure fast-shut-off valve in one embodiment;

[0017] Figure 3 This is a schematic diagram of a cone valve for a high-pressure fast shut-off valve in one embodiment;

[0018] Figure 4 This is a cross-sectional view of the valve seat of a high-pressure fast shut-off valve in one embodiment;

[0019] Figure 5 This is a cross-sectional view of the slider of a high-pressure fast shut-off valve in one embodiment.

[0020] The following are marked in the diagram: 1. Housing; 2. Cone valve; 3. Valve stem; 4. Valve seat; 5. Slider; 6. Fixing assembly; 61. Locking block; 62. Fixing spring; 63. Movable button; 64. Return spring; 7. Release spring; 8. Guide plate; 9. Rubber pad; 10. Limit block; 11. Sealing gasket; 12. Pull block. Detailed Implementation

[0021] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0022] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0023] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0024] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0025] like Figure 1-5 As shown, the high-pressure quick-shut-off valve includes a housing 1, which is made of stainless steel. Its main function is to provide a flow space for the medium. A Z-shaped flow channel is provided inside the housing 1.

[0026] Furthermore, a conical groove is provided in the middle of the Z-shaped flow channel, and a conical valve 2 is movably connected in the conical groove. A guide plate 8 is fixedly connected to the conical valve 2, and rubber pads 9 are fixedly connected to both sides of the guide plate 8. A sealing gasket 11 is fixedly connected to the slider 5.

[0027] Specifically, the guide plate 8 is made of stainless steel. Its main function is to guide the movement of the cone valve 2 and prevent the cone valve 2 from deviating and failing to accurately seal the cone groove. The rubber pads 9 on both sides of the guide plate 8 are used to ensure the sealing of the cone valve 2 and prevent it from failing to completely seal the cone groove. At the same time, the rubber pads 9 can also protect the cone valve 2 and the guide plate 8, preventing the cone valve 2 and the guide plate 8 from directly contacting the outer shell 1 during rapid cutting and being damaged by a large impact force.

[0028] Furthermore, a valve stem 3 is fixedly connected to the cone valve 2, a pull block 12 is fixedly connected to the valve stem 3, and a valve seat 4 is fixedly connected to the outer casing 1. The valve seat 4 is fixedly connected to the outer casing 1 through a flange.

[0029] Furthermore, a slide is provided in the valve seat 4, and a slider 5 is fixedly connected to the valve stem 3. The slider 5 is slidably connected in the slide, and a limit block 10 is fixedly connected to the slider 5. A limit groove is provided in the inner wall of the slide of the valve seat 4, and the limit block 10 is slidably connected in the limit groove. The limit block 10 can effectively limit the slider 5 from rotating, thereby preventing the jamming block 61 from not corresponding with the jamming groove.

[0030] Furthermore, a fixing component 6 is provided on the slider 5. The fixing component 6 is used to fix the slider 5. The fixing component 6 includes a locking block 61. A fixing groove is provided on the slider 5. The locking block 61 is slidably connected in the fixing groove. A locking groove is provided on the inner wall of the slide of the valve seat 4. The locking block 61 is locked in the locking groove.

[0031] Furthermore, the fixing component 6 also includes a fixing spring 62, one end of which is fixedly connected to the locking block 61, and the other end of which is fixedly connected to the inner wall of the fixing groove of the slider 5.

[0032] Specifically, by pulling the lever 12, the valve stem 3 is moved. After the valve stem 3 moves, it will cause the slider 5 to compress and release the spring 7 to slide in the slide of the valve seat 4. When the locking block 61 on the slider 5 moves to the corresponding position of the locking groove of the valve seat 4, the locking block 61 will be locked in the locking groove of the valve seat 4 due to the elastic force of the fixing spring 62. At this time, the cone valve 2 no longer blocks the cone groove, thereby allowing the valve to flow.

[0033] Furthermore, the fixed component 6 also includes an active button 63. A groove is provided on the valve seat 4, and the active button 63 is slidably connected in the groove. A return spring 64 is fixedly connected to the active button 63 and is fixedly connected to the valve seat 4.

[0034] Specifically, when it is necessary to quickly shut off the valve, pressing the movable button 63 causes the movable button 63 to compress the return spring 64 and slide it in the groove of the valve seat 4. This causes the movable button 63 to push the locking block 61 to compress the fixing spring 62 and move it into the fixing groove of the locking block 61 until the locking block 61 is half retracted into the fixing groove. At this time, under the pressure of the release spring 7, the locking block 61 is quickly squeezed into the fixing groove. The slider 5 will then move downward quickly under the rebound force of the release spring 7, driving the valve stem 3 and the cone valve 2 to move downward until the cone groove is blocked, thereby quickly shutting off the valve.

[0035] Furthermore, a Z-shaped flow channel is provided inside the outer casing 1. When the cone valve 2 moves downward, the resistance it experiences under the action of the cone is small. At the same time, the medium flows into the valve from the head of the Z-shaped flow channel, so that the cone valve 2 can be pushed by the medium during the movement, thereby moving quickly and further accelerating the valve shut-off.

[0036] Furthermore, a release spring 7 is fixedly connected to the slider 5. The release spring 7 is fixedly connected to the inner wall of the slide. The release spring 7 is used to quickly shut off the cone valve 2.

[0037] The aforementioned high-pressure quick-shutdown valve quickly releases the cone valve 2 via the release spring 7, thereby shutting off the valve. By pressing the movable button 63, the movable button 63 compresses the reset spring 64 and slides within the groove of the valve seat 4. This causes the movable button 63 to push the locking block 61 to compress the fixing spring 62 and move it into the fixing groove of the locking block 61 until half of the locking block 61 retracts into the fixing groove. At this point, under the pressure of the release spring 7, the locking block 61 is quickly squeezed into the fixing groove. The slider 5 then moves rapidly downward under the rebound force of the release spring 7, causing the valve stem 3 and the cone valve 2 to move downward until the cone groove is blocked, thereby quickly shutting off the valve.

[0038] The outer casing 1 of this utility model has a Z-shaped flow channel. When the conical valve 2 moves downward, the resistance it experiences under the action of the cone is small. At the same time, the medium flows into the valve from the head of the Z-shaped flow channel, so that the conical valve 2 can be pushed by the medium during the movement, thereby moving quickly and further accelerating the valve shut-off.

[0039] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A high-pressure quick-shut-off valve, comprising a housing (1), characterized in that: The outer shell (1) has a Z-shaped flow channel, and a conical groove is provided in the middle of the Z-shaped flow channel. A conical valve (2) is movably connected in the conical groove. A valve stem (3) is fixedly connected to the conical valve (2). A pull block (12) is fixedly connected to the valve stem (3). A valve seat (4) is fixedly connected to the outer shell (1). A slide is provided in the valve seat (4). A slider (5) is fixedly connected to the valve stem (3). The slider (5) is slidably connected in the slide. A fixing component (6) is provided on the slider (5). The fixing component (6) is used to fix the slider (5). A release spring (7) is fixedly connected to the slider (5). The release spring (7) is fixedly connected to the inner wall of the slide.

2. The high-pressure quick-shutdown valve according to claim 1, characterized in that: A guide plate (8) is fixedly connected to the cone valve (2), and rubber pads (9) are fixedly connected to both sides of the guide plate (8). A sealing gasket (11) is fixedly connected to the slider (5).

3. The high-pressure quick-shutdown valve according to claim 1, characterized in that: A limiting block (10) is fixedly connected to the slider (5), and a limiting groove is opened on the inner wall of the slide of the valve seat (4). The limiting block (10) is slidably connected in the limiting groove.

4. The high-pressure quick-shutdown valve according to claim 1, characterized in that: The fixing component (6) includes a locking block (61), the slider (5) has a fixing groove, the locking block (61) is slidably connected in the fixing groove, the inner wall of the valve seat (4) slide has a locking groove, and the locking block (61) is locked in the locking groove.

5. The high-pressure quick-shutdown valve according to claim 4, characterized in that: The fixing component (6) also includes a fixing spring (62), one end of which is fixedly connected to the card block (61), and the other end of which is fixedly connected to the inner wall of the fixing groove of the slider (5).

6. The high-pressure quick-shutdown valve according to claim 5, characterized in that: The fixed component (6) also includes a movable button (63). A groove is provided on the valve seat (4). The movable button (63) is slidably connected in the groove. A return spring (64) is fixedly connected to the movable button (63). The return spring (64) is fixedly connected to the valve seat (4).

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