Underwater heavy hammer type valve capable of being remotely closed

Abstract

The utility model relates to the technical field of valves, in particular to an underwater heavy hammer type valve capable of being remotely closed. Comprising a valve body, a valve plate, a valve shaft, a rotary limiting wheel, an inserting shaft, a heavy hammer arm and a heavy hammer, and the valve body is of a hollow tubular structure and is a main body of the valve; the valve plate is installed in the valve body and used for controlling flowing of media in the valve body. The valve shaft is connected with the valve plate and used for controlling rotation of the valve plate. The rotary limiting wheel is connected with the valve shaft; one end of the inserting shaft is in contact with the rotary limiting wheel and is used for limiting the rotation of the rotary limiting wheel; the heavy hammer arm is connected with the valve shaft; the heavy hammer is connected with the heavy hammer arm, and power is provided for rotation of the valve plate through the gravity of the heavy hammer. Compared with a valve which is remotely controlled by a circuit in the prior art, the mechanical underwater valve capable of being remotely closed is simpler and more reliable in structure, lower in maintenance cost and high in popularization value.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to an underwater counterweight valve that can be remotely closed. Background Technology

[0002] Valves are devices used in fluid systems to control the direction, pressure, and flow rate of fluids, enabling the control of the flow or cessation of media within piping or equipment. Valve control is often performed manually, such as by hand or with the aid of tools. However, in special cases involving underground water transport, such as lakes or rivers, when it is necessary to cut off the media within the pipeline, manually controlled valves require technicians to travel underwater to operate them manually. This is not only complex but also poses safety hazards.

[0003] To address this issue, remote-controlled valves have emerged. These valves use remote signals to drive actuators, enabling opening, closing, and regulation of the valve. Their core function lies in translating control commands into mechanical actions and forming a closed-loop control system through sensor feedback. However, existing remote-controlled valves often involve complex control circuits, resulting in high costs and difficulties in maintenance. Utility Model Content

[0004] The purpose of this invention is to provide an underwater counterweight valve that can be remotely closed. Compared with the prior art, this invention eliminates the method of remotely controlling the valve using circuits and adopts a mechanical structure to realize the operation of remotely closing the underwater valve from above water.

[0005] The technical solution of this utility model is: an underwater counterweight valve that can be remotely closed, comprising:

[0006] The valve body is a hollow tubular structure and is the main body of the valve.

[0007] A valve plate, which is installed in the valve body, is used to control the flow of the medium in the valve body;

[0008] A valve shaft, which is connected to the valve plate, is used to control the rotation of the valve plate;

[0009] A rotating limit wheel is connected to the valve shaft;

[0010] An insert shaft, one end of which contacts the rotating limiting wheel to restrict the rotation of the rotating limiting wheel;

[0011] A counterweight arm, which is connected to the valve shaft;

[0012] A weight, connected to a weight arm, provides power for the rotation of the valve plate through its own weight.

[0013] According to the present invention, an underwater counterweight valve that can be remotely closed is provided, wherein the centerline of the valve shaft is eccentric relative to the centerline of the valve body, and the eccentricity d is 0.15 to 0.3 times the diameter of the valve body.

[0014] According to the present invention, an underwater counterweight valve that can be remotely closed has an angle α between the normal of the valve shaft and the plane where the valve plate is located when the valve is in the closed state, which is 15°±5°.

[0015] According to the present invention, an underwater counterweight valve that can be remotely closed is provided, wherein a sealing base is provided on the inner wall of the valve body, and a sealing surface is provided on the sealing base. When the valve is in the closed state, the sealing surface abuts against the end face of the valve plate.

[0016] According to the present invention, an underwater counterweight valve that can be remotely closed has an angle β between the plane containing the sealing surface and the center line of the valve body, which is in the range of 10°±4°.

[0017] According to the present invention, an underwater counterweight valve that can be remotely closed is provided, wherein the lower end of the insert shaft contacts the rotating limit wheel, the upper end is used to connect a rope, and the free end of the rope extends upward out of the water surface.

[0018] According to the present invention, an underwater counterweight valve that can be remotely closed is provided, wherein the insert shaft is provided with a first groove and a second groove along its circumferential surface, and a limiting concave surface is provided at its lower end, wherein the first groove is located above the second groove.

[0019] According to the present invention, an underwater counterweight valve that can be remotely closed also includes a plug shaft limiter, which includes a fixed end and a telescopic end. The fixed end is fixedly connected to the valve body, and the fixed end and the telescopic end are connected by a spring.

[0020] According to the present invention, an underwater counterweight valve that can be remotely closed is provided, wherein the rotating limiting wheel has an annular structure, a first limiting part protruding on the outer periphery, and a third groove on the inner wall.

[0021] According to the present invention, an underwater counterweight valve that can be remotely closed is provided, wherein a second limiting part is provided on one end of the valve shaft connected to the rotating limiting wheel, and the second limiting part is engaged in a third groove on the inner wall of the rotating limiting wheel.

[0022] The advantages of this utility model are:

[0023] 1. This utility model is a mechanically remotely closable underwater valve. Compared with the existing technology of valves that are remotely controlled by circuits, this utility model has a simpler and more reliable structure and lower maintenance costs.

[0024] 2. The center line of the valve shaft of this utility model is eccentric relative to the valve body, which makes it easier to rotate the valve plate;

[0025] 3. When the valve is closed, the valve plate of this utility model is arranged in an inclined state in the valve body, which makes it easier for the counterweight to use its own weight to rotate the valve plate to the inclined state when the valve is closed more quickly.

[0026] 4. The valve body of this utility model is provided with a sealing base on its inner wall, and the sealing base is provided with a sealing surface, which makes it easier for the valve plate to have better sealing performance when the valve is closed.

[0027] 5. The plane containing the sealing surface of this utility model is set at an angle to the center line of the valve body, which is beneficial to improving the sealing performance between the valve plate and the sealing base;

[0028] 6. The lower end of the insert shaft of this utility model is in contact with the rotating limit wheel, and the upper end is connected to a rope. The free end of the rope extends upward out of the water surface, which facilitates the remote release of the contact between the insert shaft and the rotating limit wheel on the water, thereby closing the valve located underwater.

[0029] 7. The insert shaft of this utility model is provided with a first groove and a second groove along its circumferential surface, which facilitates the insert shaft limiter to restrict the up and down movement of the insert shaft.

[0030] 8. This utility model also includes a shaft limiter, which can limit the up and down movement of the shaft, so that the valve can remain in a stable closed state and avoid the valve from being unable to open and close smoothly due to the influence of water flow.

[0031] 9. The rotating limiting wheel of this utility model has a ring structure with a raised first limiting part on the outer periphery and a third groove on the inner wall. The first limiting part and the counterweight are respectively located on both sides of the lower end of the insert shaft, which is conducive to keeping the valve in the open state. The third groove is used to connect the valve shaft to ensure that the rotating limiting wheel rotates synchronously with the valve shaft.

[0032] 10. The valve shaft of this utility model is provided with a protruding second limiting part at the end where it is connected to the rotating limiting wheel. The second limiting part is engaged in the third groove on the inner wall of the rotating limiting wheel. The valve shaft and the rotating limiting wheel are connected by riveting. The process is convenient, the structure is simple, and the connection is firm. Attached Figure Description

[0033] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the description of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the overall structure of the valve of this utility model;

[0035] Figure 2 This is a cross-sectional view of the valve of this utility model when it is closed.

[0036] Figure 3 This is a schematic diagram of the cross-sectional structure of the valve of this utility model when it is open;

[0037] Figure 4 This is a schematic diagram of the structure of the insert shaft of this utility model;

[0038] Figure 5 This is a schematic diagram of the structure of the insert shaft and insert shaft limiter of this utility model;

[0039] Figure 6 This is a schematic diagram of the structure of the rotating limiting wheel of this utility model;

[0040] Figure 7 This diagram shows the positional relationship between the insertion shaft and the rotating limit wheel when the valve of this utility model is opened;

[0041] Figure 8 This diagram shows the positional relationship between the insertion shaft and the rotating limit wheel when the valve of this utility model is closed.

[0042] Wherein: 1-valve body; 11-sealing base; 2-valve plate; 3-valve shaft; 31-second limiting part; 4-rotating limiting wheel; 41-first limiting part; 42-third groove; 5-insertion shaft; 51-first groove; 52-second groove; 53-limiting concave surface; 6-counterweight arm; 7-counterweight; 8-insertion shaft limiter; 81-fixed end; 82-telescopic end; 9-stop block. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] This utility model relates to an underwater counterweight valve that can be remotely closed. It is mainly used in scenarios where water supply is required during construction but needs to be shut off after construction is completed, such as the construction of water structures like dams and hydroelectric power stations. Compared with the existing technology that uses circuit remote control valves, this application is a fully mechanical structure, which is simple and reliable in construction and has low maintenance costs.

[0047] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0048] A remotely closable underwater counterweight valve, specifically, such as Figure 1 , 2 As shown in Figure 3, the valve includes: valve body 1, valve plate 2, valve shaft 3, rotating limit wheel 4, insert shaft 5, counterweight arm 6, and counterweight 7. The valve body 1 is a hollow tubular structure and is the main body of the valve. The valve plate 2 is installed inside the valve body 1 and is used to control the flow of the medium inside the valve body 1. The valve shaft 3 is connected to the valve plate 2 and is used to control the rotation of the valve plate 2. The rotating limit wheel 4 is connected to the valve shaft 3. One end of the insert shaft 5 is in contact with the rotating limit wheel 4 and is used to limit the rotation of the rotating limit wheel 4. The counterweight arm 6 is connected to the valve shaft 3. The counterweight 7 is connected to the counterweight arm 6 and provides power for the rotation of the valve plate 2 through its own gravity.

[0049] In actual operation, the default state of the valve of this utility model is fully open, such as... Figure 3 , 7 As shown, at this time, the valve plate 2 is in a horizontal state, and the lower end of the insert shaft 5 is in contact with the rotating limit wheel 4; when it is necessary to close the valve, as... Figure 1 , 2 As shown in Figure 8, the control shaft 5 moves upward, causing the lower end of the shaft 5 to separate from the rotating limit wheel 4. At this time, the weight 7 moves downward under its own weight and drives the weight arm 6 to rotate. The weight arm 6 is connected to the valve shaft 3 by bolts, and the valve shaft 3 also rotates. When the valve shaft 3 rotates, it will drive the valve plate 2 to rotate around the center line of the valve shaft 3. Finally, the lower end of the valve plate 2 contacts the bottom of the valve body 1 and prevents the flow of the medium in the valve body 1, thus completing the closure of the valve.

[0050] Preferably, the bottom of the inner wall of the valve body 1 is also provided with a stop block 9. The stop block 9 is used to support the valve plate 2 when the valve is closed, so as to prevent the valve plate 2 from being damaged when it comes into contact with the inner wall of the valve body 1 due to excessive rotational inertia.

[0051] In some embodiments, such as Figure 3 As shown, the valve shaft 3 described above has been optimized. In this embodiment, the centerline of the valve shaft 3 is eccentric relative to the centerline of the valve body 1, and the eccentricity d is 0.15 to 0.3 times the diameter of the valve body 1.

[0052] In actual operation, the eccentricity of the valve shaft 3 centerline relative to the valve body 1 centerline is beneficial for the valve plate 2 to rotate around the valve shaft 3 centerline;

[0053] When the eccentricity d is less than 0.15 times the diameter of valve body 1, the eccentricity of the valve shaft 3 centerline relative to the valve body 1 centerline is too small, which is not conducive to the valve plate 2 rotating around the valve shaft 3 centerline; when the eccentricity d is greater than 0.3 times the diameter of valve body 1, if the valve plate 2 is to completely block the flow of the medium inside the valve body 1, the area of ​​the valve plate 2 will increase sharply, and the manufacturing cost of the valve will increase.

[0054] In some embodiments, such as Figure 2 As shown, the valve plate 2 described above has been optimized. In this embodiment, when the valve is in the closed state, the angle α between the normal of the valve shaft 3 and the plane where the valve plate 2 is located is in the range of 15°±5°.

[0055] In actual operation, the valve plate 2 is inclined inside the valve body 1. On the one hand, it can shorten the rotation path of the valve plate 2, and on the other hand, it can use the gravity of the counterweight 7 to pressurize the valve plate 2, thereby obtaining a better sealing effect.

[0056] When the included angle α is less than 10°, the tilt angle of the valve plate 2 is insufficient, and the weight of the counterweight 7 cannot be used to apply pressure to the valve plate 2, thus reducing the sealing effect. When the included angle α is greater than 20°, if the valve plate 2 is to completely block the flow of the medium inside the valve body 1, the area of ​​the valve plate 2 will increase dramatically, thus increasing the manufacturing cost of the valve.

[0057] In some embodiments, such as Figure 2 As shown, the valve body 1 described above has been optimized. In this embodiment, a sealing base 11 is provided on the inner wall of the valve body 1, and a sealing surface is provided on the sealing base 11. When the valve is in the closed state, the sealing surface abuts against the end face of the valve plate 2.

[0058] In actual operation, the sealing surface on the sealing base 11 can improve the sealing performance of the valve plate 2. At the same time, setting the sealing surface can reduce the friction between the valve plate 2 and the inner wall of the valve body 1 when the valve is closed, thereby improving the service life of the valve.

[0059] In some embodiments, such as Figure 2 As shown, the sealing base 11 described above has been optimized. In this embodiment, the angle β between the sealing surface of the sealing base 11 and the center line of the valve body 1 is in the range of 10°±4°.

[0060] In actual operation, the plane containing the sealing surface of the sealing base 11 is set at an angle to the center line of the valve body 1, which helps to improve the sealing performance between the sealing base 11 and the valve plate 2.

[0061] When the included angle β is less than 6°, the sealing surface will tend to be horizontal, thus losing the meaning of setting the plane where the sealing surface of the sealing base 11 is located at an angle to the center line of the valve body 1; when the included angle β is greater than 14°, it will greatly increase the area of ​​the sealing surface, increase the manufacturing difficulty of the sealing surface, and increase the production cost of the valve.

[0062] In some embodiments, such as Figure 7 As shown, the aforementioned insert shaft 5 has been optimized. In this embodiment, the lower end of the insert shaft 5 contacts the rotating limiting wheel 4, and the upper end is used to connect the rope. The free end of the rope extends upward out of the water surface.

[0063] In actual operation, the valve is in the open state by default. At this time, the lower end of the insert shaft 5 is in contact with the rotating limit wheel 4, and the upper rope is in a slack state. When it is necessary to close the valve, the free end of the rope is tightened, and the rope drives the insert shaft 5 to move upward, separating the lower end of the insert shaft 5 from the rotating limit wheel 4. The rotating limit wheel 4 rotates under the influence of the gravity of the weight 7, and drives the valve shaft 3 and the valve plate 2 to rotate, so that the valve plate 2 completely closes the valve body 1.

[0064] In some embodiments, such as Figure 4 , 5 As shown, the above-mentioned insert shaft 5 is further optimized. In this embodiment, the insert shaft 5 is provided with a first groove 51 and a second groove 52 along its circumferential surface, and a limiting concave surface 53 is provided at the lower end. The first groove 51 is located above the second groove 52. Preferably, it also includes an insert shaft limiter 8, which includes a fixed end 81 and a telescopic end 82. The fixed end 81 is fixedly connected to the valve body 1, and the fixed end 81 and the telescopic end 82 are connected by a spring.

[0065] Specifically, when the valve is in the open state, the telescopic end 82 of the insert shaft limiter 8 abuts against the first groove 51 of the insert shaft 5, restricting the movement of the insert shaft 5 in the vertical direction. In particular, the telescopic end 82 can be set as a ball, the size of which matches the size of the first groove 51, to strengthen the restriction of the insert shaft limiter 8 on the vertical movement of the insert shaft 5. When the valve needs to be closed, the insert shaft 5 is moved upward by external force, so that the telescopic end 82 moves downward relative to the insert shaft 5 into the second groove 52, so that the lower end of the insert shaft 5 separates from the rotating limit wheel 4. At this time, after the external force is removed, the insert shaft limiter 8 can prevent the insert shaft limiter 8 from moving downward due to its own weight, ensuring that the insert shaft limiter 8 can rotate freely without being affected by the insert shaft 5.

[0066] In some embodiments, such as Figure 6As shown, the rotating limiting wheel 4 described above has been optimized. In this embodiment, the rotating limiting wheel 4 has a ring-shaped structure with a raised first limiting part 41 on the outer periphery and a third groove 42 on the inner wall.

[0067] In fact, the first limiting part 41 can be a safety structure to keep the valve in the open state. Specifically, when the valve is open, the first limiting part 41 is located to the left of the limiting concave surface 53 of the insert shaft 5. At this time, the insert shaft 5 can prevent the rotating limiting wheel 4 from rotating due to the influence of the gravity of the weight 7.

[0068] In some embodiments, such as Figure 7 , 8 As shown, the valve shaft 3 described above has been optimized. In this embodiment, a protruding second limiting part 31 is provided on one end of the valve shaft 3 that is connected to the rotating limiting wheel 4. The second limiting part 31 is engaged in the third groove 42 on the inner wall of the rotating limiting wheel 4.

[0069] In fact, the second limiting part 31 is engaged in the third groove 42 so that the valve shaft 3 and the rotating limiting wheel 4 move synchronously. This riveting method is not only simple in structure, strong and durable, and easy to process, but also avoids the conflict when the valve shaft 3 is bolted to the counterweight arm 6.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A remotely closable underwater counterweight valve, characterized in that, include: Valve body (1), the valve body (1) is a hollow tubular structure and is the main body of the valve; Valve plate (2), which is installed inside the valve body (1) and is used to control the flow of the medium inside the valve body (1); Valve shaft (3), which is connected to the valve plate (2) and is used to control the rotation of the valve plate (2); A rotating limiting wheel (4) is connected to the valve shaft (3); Insert shaft (5), one end of which contacts the rotating limiting wheel (4) to limit the rotation of the rotating limiting wheel (4); A counterweight arm (6) is connected to the valve shaft (3); The hammer (7) is connected to the hammer arm (6) and provides power for the rotation of the valve plate (2) by its own gravity.

2. The underwater counterweight valve capable of remote closure according to claim 1, characterized in that, The centerline of the valve shaft (3) is eccentric relative to the centerline of the valve body (1), and the eccentricity d is 0.15 to 0.3 times the diameter of the valve body (1).

3. The underwater counterweight valve that can be remotely closed according to claim 2, characterized in that, When the valve is in the closed state, the angle α between the normal of the valve shaft (3) and the plane where the valve plate (2) is located is 15°±5°.

4. The underwater counterweight valve that can be remotely closed according to claim 1, characterized in that, The valve body (1) has a sealing base (11) on its inner wall, and a sealing surface is provided on the sealing base (11). When the valve is in the closed state, the sealing surface abuts against the end face of the valve plate (2).

5. The underwater counterweight valve that can be remotely closed according to claim 4, characterized in that, The angle β between the plane containing the sealing surface and the center line of the valve body (1) is in the range of 10°±4°.

6. The underwater counterweight valve that can be remotely closed according to claim 1, characterized in that, The lower end of the insert shaft (5) contacts the rotating limiting wheel (4), and the upper end is used to connect the rope, with the free end of the rope extending upward out of the water.

7. The underwater counterweight valve capable of remote closure according to claim 6, characterized in that, The insert shaft (5) has a first groove (51) and a second groove (52) along its circumferential surface, and a limiting concave surface (53) at its lower end. The first groove (51) is located above the second groove (52).

8. The underwater counterweight valve that can be remotely closed according to claim 1, characterized in that, It also includes a shaft limiter (8), which includes a fixed end (81) and a telescopic end (82). The fixed end (81) is fixedly connected to the valve body (1); the telescopic end (82) contacts the first groove (51) of the shaft (5); the fixed end (81) and the telescopic end (82) are connected by a spring.

9. The underwater counterweight valve capable of remote closure according to claim 1, characterized in that, The rotating limiting wheel (4) has a ring-shaped structure, with a raised first limiting part (41) on the outer periphery and a third groove (42) on the inner wall.

10. A remotely closable underwater counterweight valve according to claim 3, characterized in that, The valve shaft (3) is provided with a protruding second limiting part (31) at one end connected to the rotating limiting wheel (4), and the second limiting part (31) is engaged in the third groove (42) on the inner wall of the rotating limiting wheel (4).

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