High-pressure stop valve

Abstract

The high-pressure stop valve comprises a valve body, the top of the valve body is fixedly connected with a fixing seat, a valve rod is connected to the top of the fixing seat in an inserted mode, a mounting plate is fixedly connected to the right side wall of the fixing seat, a clamping block is connected to an inner cavity of an adjacent clamping groove in a clamped mode, and a threaded pipe is arranged at the bottom of the clamping block. According to the high-pressure stop valve, the threaded pipe is rotated through the operating rod and moves in the direction away from the threaded rod, so that the movable rod turns over in the direction away from the rocking wheel with the first pin shaft as the center, the movable rod drives the clamping block to turn over to be away from the clamping groove, and fixing of the rocking wheel is released; then the valve body is closed and opened by rotating the rocking wheel, the threaded pipe is reversely rotated through the operating rod, so that the clamping block is clamped in the inner cavity of the adjacent clamping groove, and the rocking wheel is fixed, so that the rocking wheel is prevented from rotating due to misoperation or collision, the flow of the valve body is controlled, and the control precision of the valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a high-pressure stop valve. Background Art

[0002] The stop valve is the most widely used valve. The opening and closing principle of the stop valve is to rely on the pressure of the valve stem to make the valve disc sealing surface fit closely with the valve seat sealing surface to prevent the flow of the medium. The friction between the valve disc sealing surface and the valve seat sealing surface is small during the opening and closing process of the stop valve. It is relatively durable, has a small opening height, is easy to manufacture and maintain, and is suitable for both medium and low pressures and high pressures.

[0003] During use, the existing high-pressure stop valve does not have any protective measures after the rocker opens or closes the valve to a certain state. However, in actual use, the rocker can easily rotate due to misoperation or collision, which makes the flow of the valve body unable to be controlled, thereby reducing the control accuracy of the valve. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide a high-pressure stop valve.

[0005] One of the purposes of the utility model is achieved by the following technical solution:

[0006] A high-pressure stop valve comprises a valve body, wherein a fixing seat is fixedly connected to the top of the valve body, a valve stem is inserted into the top of the fixing seat, a rocking wheel is fixedly connected to the top of the valve stem, a plurality of slots are provided on the outer edge of the rocking wheel, a movable rod is provided on the right side of the rocking wheel, a mounting plate is movably connected to the bottom of the movable rod, the mounting plate is fixedly connected to the right side wall of the fixing seat, a clamping block is fixedly connected to the left side of the movable rod near the top, the clamping block is clamped in the inner cavity of an adjacent slot, a threaded tube is provided on the left side of the movable rod, a bearing is fixedly sleeved on the outer edge of the threaded tube near the top, a threaded rod is inserted into the bottom end of the threaded tube, a first movable plate is fixedly connected to the bottom end of the threaded rod at the top of the bearing, a second movable plate is provided on both the front and rear sides of the first movable plate, the second movable plate located on the bearing is fixedly connected to the left side of the movable rod, the second movable plate located at the bottom end of the threaded rod is fixedly connected to the top of the fixing seat, a second pin is movably penetrated through the inner cavity of the first movable plate, and both ends of the second pin are fixedly penetrated through the adjacent second movable plate.

[0007] Preferably, flanges are fixedly sleeved on both left and right sides of the valve body, a plurality of flange holes are opened on the flange, and a sealing ring is provided on the side of the flange away from the valve body.

[0008] Preferably, the bottom end of the movable rod is fixedly connected to a first connecting plate, a second connecting plate is provided on both the front and rear sides of the first connecting plate, the second connecting plate is fixedly connected to the top of the mounting plate, a first pin shaft is movably passed through the inner cavity of the first connecting plate, and both ends of the first pin shaft are fixedly passed through adjacent second connecting plates.

[0009] Preferably, the threaded tube and the threaded rod are threadedly connected, the threaded tube and the threaded rod are both inclined, and the downward angle between the threaded tube and the movable rod is an acute angle.

[0010] Preferably, two operating rods are fixedly connected to the outer edge of the threaded tube near the bottom end.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model provides a high-pressure stop valve. The threaded tube is rotated by an operating rod, and the threaded tube moves in a direction away from the threaded rod, so that the movable rod is flipped in a direction away from the rocking wheel with the first pin as the center. The movable rod drives the clamping block to flip away from the clamping slot, thereby unlocking the fixation of the rocking wheel. Then, the rocking wheel is rotated to close and open the valve body. The threaded tube is rotated in the opposite direction by the operating rod, so that the clamping block is clamped in the inner cavity of the adjacent clamping slot, thereby fixing the rocking wheel, thereby preventing the rocking wheel from rotating due to misoperation or collision, and further controlling the flow of the valve body, thereby improving the control accuracy of the valve;

[0013] 2. The utility model provides a high-pressure stop valve, which not only increases the friction force on the surface of the rocker wheel through the setting of the card slot during use, but also can be used in conjunction with the card block, thus achieving two goals at one stroke.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 A three-dimensional diagram of the rocking wheel of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the movable rod of the utility model component.

[0018] Numbers in the figure: 1. valve body; 2. flange; 3. flange hole; 4. sealing ring; 5. fixed seat; 6. valve stem; 7. rocker; 8. movable rod; 9. clamping block; 10. first connecting plate; 11. second connecting plate; 12. first pin shaft; 13. mounting plate; 14. threaded pipe; 15. bearing; 16. first movable plate; 17. second movable plate; 18. second pin shaft; 19. threaded rod; 20. operating rod; 21. slot. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0020] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] See also Figure 1-3 The utility model provides a technical solution: a high-pressure stop valve, including a valve body 1, flanges 2 are fixedly sleeved on the left and right sides of the valve body 1, a plurality of flange holes 3 are opened on the flange 2, a sealing ring 4 is provided on the side of the flange 2 away from the valve body 1, a fixing seat 5 is fixedly connected to the top of the valve body 1, a valve stem 6 is inserted on the top of the fixing seat 5, a rocker 7 is fixedly connected to the top of the valve stem 6, a plurality of slots 21 are opened on the outer edge of the rocker 7, a movable rod 8 is provided on the right side of the rocker 7, a mounting plate 13 is movably connected to the bottom of the movable rod 8, a first connecting plate 10 is fixedly connected to the bottom end of the movable rod 8, a second connecting plate 11 is provided on the front and rear sides of the first connecting plate 10, the second connecting plate 11 is fixedly connected to the top of the mounting plate 13, a first pin 12 is movably penetrated through the inner cavity of the first connecting plate 10, and both ends of the first pin 12 are fixedly penetrated through the adjacent second connecting plate 11;

[0023] The mounting plate 13 is fixedly connected to the right side wall of the fixing seat 5, a clamping block 9 is fixedly connected to the left side of the movable rod 8 near the top, and the clamping block 9 is clamped in the inner cavity of the adjacent clamping slot 21, a threaded tube 14 is provided on the left side of the movable rod 8, a bearing 15 is fixedly sleeved on the outer edge of the threaded tube 14 near the top, a threaded rod 19 is inserted at the bottom end of the threaded tube 14, a first movable plate 16 is fixedly connected to the bottom end of the top threaded rod 19 of the bearing 15, and a second movable plate 17 is provided on the front and rear sides of the first movable plate 16. The second movable plate 17 located on the bearing 15 Plate 17 is fixedly connected to the left side of the movable rod 8, and the second movable plate 17 located at the bottom end of the threaded rod 19 is fixedly connected to the top of the fixed seat 5. The inner cavity of the first movable plate 16 is movably penetrated by a second pin shaft 18, and both ends of the second pin shaft 18 are fixedly penetrated through the adjacent second movable plate 17. The threaded tube 14 and the threaded rod 19 are threadedly connected, and the threaded tube 14 and the threaded rod 19 are both inclined. The downward angle between the threaded tube 14 and the movable rod 8 is an acute angle, and two operating rods 20 are fixedly connected to the outer edge of the threaded tube 14 near the bottom.

[0024] Working principle: During use, the valve body 1 is connected to the connecting pipe through the flange 2, and the valve body 1 is closed and opened by rotating the hand wheel 7. Before the hand wheel 7 needs to be rotated, the threaded tube 14 is first rotated by the operating rod 20. The threaded tube 14 rotates in the inner cavity of the bearing 15 and the outer edge of the threaded rod 19. The threaded tube 14 moves relative to the threaded rod 19 under the action of the thread, and the threaded tube 14 moves away from the threaded rod 19, so that the movable rod 8 flips in the direction away from the hand wheel 7 with the first pin shaft 12 as the center. In this process, the threaded tube 14 and the threaded rod 19 are respectively centered on the adjacent second pin shaft 18. Rotate, the movable rod 8 drives the clamping block 9 to flip away from the clamping slot 21, thereby unlocking the fixing of the rocking wheel 7, and then rotate the rocking wheel 7 to drive the valve stem 8 to rotate, thereby closing and opening the valve body 1. After the valve body 1 is closed and opened to a suitable size, stop rotating the rocking wheel 7, and then reversely rotate the threaded tube 14 through the operating rod 20, thereby driving the movable rod 8 and the clamping block 9 to flip in the direction of the rocking wheel 7 until the clamping block 9 is clamped in the inner cavity of the adjacent clamping slot 21, thereby fixing the rocking wheel 7, thereby preventing the rocking wheel 7 from rotating due to misoperation or collision, and thereby controlling the flow of the valve body, thereby improving the control accuracy of the valve;

[0025] During use, the arrangement of the card slot 21 not only increases the friction force on the surface of the rocking wheel 7, but also enables the card block 9 to be used together, thus killing two birds with one stone.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0031] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A high-pressure stop valve, comprising a valve body, characterized in that: The top of the valve body is fixedly connected to a fixing seat, the top of the fixing seat is plugged with a valve stem, the top of the valve stem is fixedly connected to a rocking wheel, the outer edge of the rocking wheel is provided with a plurality of slots, a movable rod is provided on the right side of the rocking wheel, and the bottom of the movable rod is movably connected to a mounting plate, the mounting plate is fixedly connected to the right side wall of the fixing seat, a clamping block is fixedly connected to the left side of the movable rod near the top, the clamping block is clamped in the inner cavity of the adjacent slot, a threaded tube is provided on the left side of the movable rod, a bearing is fixedly sleeved at the outer edge of the threaded tube near the top, a threaded rod is plugged with a threaded rod at the bottom end of the threaded tube, the bottom end of the threaded rod at the top of the bearing is fixedly connected to a first movable plate, a second movable plate is provided on the front and rear sides of the first movable plate, the second movable plate located on the bearing is fixedly connected to the left side of the movable rod, and the second movable plate located at the bottom end of the threaded rod is fixedly connected to the top of the fixing seat, a second pin shaft is movably penetrated through the inner cavity of the first movable plate, and both ends of the second pin shaft are fixedly penetrated through the adjacent second movable plates.

2. A high pressure stop valve according to claim 1, characterized in that: Flanges are fixedly sleeved on both left and right sides of the valve body, a plurality of flange holes are opened on the flanges, and a sealing ring is arranged on the side of the flange away from the valve body.

3. A high pressure stop valve according to claim 1, characterized in that: The bottom end of the movable rod is fixedly connected to a first connecting plate, and second connecting plates are provided on both the front and rear sides of the first connecting plate. The second connecting plate is fixedly connected to the top of the mounting plate, and a first pin shaft is movably penetrated through the inner cavity of the first connecting plate, and both ends of the first pin shaft are fixedly penetrated through adjacent second connecting plates.

4. A high pressure stop valve according to claim 1, characterized in that: The threaded tube and the threaded rod are threadedly connected, the threaded tube and the threaded rod are both inclined, and the downward angle between the threaded tube and the movable rod is an acute angle.

5. A high pressure stop valve according to claim 1, characterized in that: Two operating rods are fixedly connected to the outer edge of the threaded tube near the bottom end.

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