Municipal water supply and drainage control valve

Abstract

The utility model discloses a municipal water supply and drainage control valve, and belongs to the technical field of control valves. The control assembly comprises a screw rod, rotation of the screw rod is used for driving the control assembly to move so as to control the opening and closing state of the valve body, a rotating ring is arranged on the outer side of the end, located outside the valve body, of the screw rod, a connecting rod is arranged in the rotating ring, and the two ends of the connecting rod are fixed to the inner wall of the rotating ring. The middle of the connecting rod is connected to the end of the screw rod, the interior of the connecting rod is hollow, a through hole communicating with one end of the connecting rod is formed in the rotating ring, an extension rod is arranged in the connecting rod, and one end of the extension rod penetrates through the through hole in the rotating ring to enter the connecting rod; and a rubber plug is arranged at the other end of the extension rod and is clamped in the through hole of the rotating ring. According to the scheme, the problem that in the prior art, a screw is prone to being stuck, and consequently a worker cannot rotate easily is solved.

Description

Technical Field

[0001] This utility model belongs to the field of control valve technology, specifically relating to a municipal water supply and drainage control valve. Background Technology

[0002] Municipal engineering refers to the construction of municipal facilities. In my country, municipal facilities refer to various buildings, structures, and equipment set up within the planning and construction scope of urban areas and towns (townships) to provide paid or free public products and services to residents based on the government's responsibility and obligation. The construction of various public infrastructure supporting urban life falls under the category of municipal engineering, such as rainwater and sewage drainage projects that are closely related to life. In rainwater and sewage drainage projects, water supply and drainage control valves are required.

[0003] Because water supply and drainage control valves are numerous and widely distributed in municipal engineering projects, and are exposed to the external environment for a long time, the screws that change the on / off state may get stuck due to dust and rust (excessive friction). This makes it impossible for staff to turn the screws when needed, causing inconvenience in actual use. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a municipal water supply and drainage control valve to solve the problem in the prior art where the screw is easily jammed, making it difficult for workers to turn it.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A municipal water supply and drainage control valve includes a valve body with a control component. The control component includes a screw, the rotation of which drives the control component to move, thereby controlling the opening and closing state of the valve body. A rotating ring is provided on the outer side of one end of the screw outside the valve body. A connecting rod is provided inside the rotating ring, with both ends of the connecting rod fixed to the inner wall of the rotating ring. The middle part of the connecting rod is connected to the end of the screw. The connecting rod is hollow inside, and the rotating ring has a through hole communicating with one end of the connecting rod. An extension rod is provided inside the connecting rod, with one end of the extension rod passing through the through hole on the rotating ring and entering the interior of the connecting rod. A rubber plug is provided at the other end of the extension rod, and the rubber plug is engaged in the through hole of the rotating ring.

[0007] Furthermore, a pull rope is provided on one end of the extension rod where the rubber plug is located, and one end of the pull rope is fixed to the extension rod.

[0008] Furthermore, a lower fixing plate is provided on the end of the screw, the middle part of the lower fixing plate is fixed to the screw, and an upper cover plate is provided above the lower fixing plate. The contact surfaces of the lower fixing plate and the upper cover plate are provided with mounting grooves, the connecting rod is located in the mounting groove, and the lower fixing plate and the upper cover plate are fixedly connected by bolts and lock nuts.

[0009] Furthermore, the connecting rod is provided with external threads, and the connecting rod is provided with two limiting nuts, which are threadedly connected to the connecting rod, and the lower fixing plate is located between the two limiting nuts.

[0010] Furthermore, the diameter of the extension rod is smaller than the inner diameter of the connecting rod, and the end of the extension rod is slidably limited inside the connecting rod.

[0011] Furthermore, the valve body is provided with connecting flanges at both ends.

[0012] Furthermore, the extension rod is a telescopic rod.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this technical solution, when the operator needs to control the rotation of the rotating ring, they only need to pull out the extension rod inside the connecting rod, so that one end of the extension rod is located at the end of the connecting rod. Then, the rotating ring is driven to rotate by rotating the extension rod. That is, the extension rod can play the role of increasing the lever arm, which makes the rotation of the rotating ring more effortless and easier. At the same time, the extension rod is normally located inside the connecting rod and does not cause protrusion interference to the outer surface of the rotating ring, thus not affecting the operator's operation of quickly rotating the rotating ring.

[0015] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0017] Figure 1 This is a three-dimensional schematic diagram of the drainage control valve of this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the extension rod extending in the drainage control valve of this utility model.

[0019] Figure 3This is an exploded view of the connection between the connecting rod and the screw in the drainage control valve of this utility model;

[0020] Figure 4 This is a partial schematic diagram showing the rubber plug and pull rope at the end of the extension rod in the drainage control valve of this utility model.

[0021] The following labels are shown in the attached diagram:

[0022] 1. Valve body; 2. Connecting flange; 3. Control assembly; 4. Screw; 5. Lower fixing plate; 6. Upper cover plate; 7. Mounting groove; 8. Connecting rod; 9. Bolt; 10. Locking nut; 11. Limit nut; 12. Extension rod; 13. Rubber plug; 14. Pull rope; 15. Rotating ring. Detailed Implementation

[0023] like Figures 1-4 As shown, a municipal water supply and drainage control valve includes a valve body 1. A control component 3 is provided on the valve body 1. The control component 3 includes a screw 4. The rotation of the screw 4 drives the control component 3 to move, thereby controlling the opening and closing state of the valve body 1. It should be noted that the control component 3 can refer to the control component 3 of the butterfly valve in the prior art, which will not be described in detail here. Specifically, a rotating ring 15 is provided on the outer side of one end of the screw 4 outside the valve body 1. A connecting rod 8 is provided inside the rotating ring 15. The two ends of the connecting rod 8 are fixed to the inner wall of the rotating ring 15. The middle part of the connecting rod 8 is connected to the end of the screw 4. The connecting rod 8 is hollow inside. The rotating ring 15 is provided with a through hole communicating with one end of the connecting rod 8. An extension rod 12 is provided inside the connecting rod 8. One end of the extension rod 12 passes through the through hole on the rotating ring 15 and enters the interior of the connecting rod 8. A rubber plug 13 is provided on the other end of the extension rod 12. The rubber plug 13 is snapped into the through hole of the rotating ring 15. It is snapped in by friction so that it will not easily fall out of the through hole.

[0024] The working principle of the above technical solution is as follows:

[0025] When the operator needs to control the rotation of the rotating ring 15, they only need to pull out the extension rod 12 inside the connecting rod 8, so that one end of the extension rod 12 is located at the end of the connecting rod 8. Then, the rotating ring 15 is rotated by rotating the extension rod 12. That is, the extension rod 12 can extend the lever arm, thus making the rotation of the rotating ring 15 easier and less strenuous. At the same time, the extension rod 12 is normally located inside the connecting rod 8 and does not cause any protrusion or interference to the outer surface of the rotating ring 15, thus not affecting the operator's operation of quickly rotating the rotating ring 15.

[0026] In one feasible embodiment, the extension rod 12 is a telescopic rod. The telescopic rod is configured to further increase the length of the extension rod 12, thereby further increasing the lever arm and thus saving more effort.

[0027] In one feasible embodiment, a pull rope 14 is provided on one end of the extension rod 12 where the rubber plug 13 is located. One end of the pull rope 14 is fixed to the extension rod 12. The pull rope 14 facilitates pulling the extension rod 12 out of the connecting rod 8, while also ensuring that the extension rod 12 can be completely installed inside the connecting rod 8.

[0028] In one feasible embodiment, a lower fixing plate 5 is provided on the end of the screw 4, the middle part of the lower fixing plate 5 is fixed to the screw 4, and an upper cover plate 6 is provided above the lower fixing plate 5. Mounting grooves 7 are provided on the contact surfaces of the lower fixing plate 5 and the upper cover plate 6. The connecting rod 8 is located in the mounting groove 7. The lower fixing plate 5 and the upper cover plate 6 are fixedly connected by bolts 9 and locking nuts 10.

[0029] This configuration allows the connecting rod 8 to be detachably connected to the end of the screw 4, facilitating the installation and removal of the rotating ring 15 during transportation.

[0030] In one feasible embodiment, the connecting rod 8 is provided with external threads, and the connecting rod 8 is provided with two limiting nuts 11, which are threadedly connected to the connecting rod 8, and the lower fixing plate 5 is located between the two limiting nuts 11.

[0031] This configuration allows for adjustment of the limiting nut 11 to abut against the side of the lower fixing plate 5, thereby restricting the sliding of the connecting rod 8 within the mounting groove 7. Additionally, by adjusting the position of the limiting nut 11, one end of the connecting rod 8 can be brought into contact with the lower fixing plate 5, i.e., slid to the end position of the connecting rod 8, thus further increasing the lever arm and enhancing the effort-saving rotation effect.

[0032] In one feasible embodiment, the diameter of the extension rod 12 is smaller than the inner diameter of the connecting rod 8, and the end of the extension rod 12 is provided with a sliding limiter inside the connecting rod 8. The sliding limiter can be understood as preventing the end of the extension rod 12 from detaching through an end plate, ensuring safety during use and preventing it from coming loose. In another feasible embodiment, connecting flanges 2 are provided at both ends of the valve body 1.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A municipal water supply and drainage control valve, characterized in that: The device includes a valve body (1), on which a control component (3) is provided. The control component (3) includes a screw (4). The rotation of the screw (4) drives the control component (3) to move, thereby controlling the opening and closing state of the valve body (1). A rotating ring (15) is provided on the outer side of one end of the screw (4) located outside the valve body (1). A connecting rod (8) is provided inside the rotating ring (15). The two ends of the connecting rod (8) are fixed to the inner wall of the rotating ring (15). The middle part is connected to the end of the screw (4). The interior of the connecting rod (8) is hollow, and the rotating ring (15) is provided with a through hole communicating with one end of the connecting rod (8). The interior of the connecting rod (8) is provided with an extension rod (12). One end of the extension rod (12) passes through the through hole on the rotating ring (15) and enters the interior of the connecting rod (8). The other end of the extension rod (12) is provided with a rubber plug (13), which is snapped into the through hole of the rotating ring (15).

2. A municipal water supply and drainage control valve according to claim 1, characterized in that: The extension rod (12) has a rubber plug (13) at one end and a pull rope (14) is provided on it. One end of the pull rope (14) is fixed to the extension rod (12).

3. A municipal water supply and drainage control valve according to claim 1, characterized in that: The screw (4) has a lower fixing plate (5) at its end. The middle part of the lower fixing plate (5) is fixed to the screw (4), and an upper cover plate (6) is provided above the lower fixing plate (5). The contact surfaces of the lower fixing plate (5) and the upper cover plate (6) are provided with mounting grooves (7). The connecting rod (8) is located in the mounting groove (7). The lower fixing plate (5) and the upper cover plate (6) are fixedly connected by bolts (9) and locking nuts (10).

4. A municipal water supply and drainage control valve according to claim 3, characterized in that: The connecting rod (8) is provided with an external thread, and the connecting rod (8) is provided with two limiting nuts (11). The limiting nuts (11) are threadedly connected to the connecting rod (8), and the lower fixing plate (5) is located between the two limiting nuts (11).

5. A municipal water supply and drainage control valve according to claim 1, characterized in that: The diameter of the extension rod (12) is smaller than the inner diameter of the connecting rod (8), and the end of the extension rod (12) is slidably limited inside the connecting rod (8).

6. A municipal water supply and drainage control valve according to claim 1, characterized in that: The valve body (1) is provided with connecting flanges (2) at both ends.

7. A municipal water supply and drainage control valve according to claim 1, characterized in that: The extension rod (12) is a telescopic rod.

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