Ball valve operating handle applied to rapid locking of hydropower station

Abstract

The utility model discloses a quick locking ball valve operating handle applied to a hydropower station, which comprises an operating piece (2) and a locking piece (3) which are mutually matched and locked, the operating piece (2) comprises a plurality of sections of connecting rods (21) which are mutually and rotatably connected, the end part of the connecting rod (21) at the head end is provided with a connector connected with a handle (11), and the connecting rod (21) at the tail end is provided with a first lock hole (23); the locking piece (3) comprises a fixing part installed on the valve body (12), and a second lock hole (33) connected with the first lock hole (23) in a matched mode is formed in the fixing part. The rotary ball valve has the advantages that the efficiency of rotating the ball valve (1) is improved, and the ball valve (1) can be conveniently and rapidly locked.

Description

Technical Field

[0001] The utility model relates to a ball valve operating handle, in particular to a ball valve operating handle applied to quick locking of a hydropower station. Background Art

[0002] In a pumped-storage power station, due to the frequent start-up and shutdown of the water turbine, it is necessary to perform irregular maintenance on the unit. During the maintenance process, it is also necessary to isolate the water system pipeline of the pumped-storage power station to assist in the inspection of the unit. Since the isolation of the water system requires the ball valve to be fully open or fully closed, in order to prevent the switch state of the ball valve from being accidentally moved by someone during the isolation period, it is necessary to lock the handle of the ball valve.

[0003] At present, the locking method of the ball valve usually uses chain locking or locking box locking. For the chain locking method, for large rotary ball valves, the locking reliability is poor and it is easy to loosen later; while for the locking box locking method, the versatility is poor, and different sizes of locking boxes need to be replaced according to the size of the valve, the operation convenience is poor, the locking efficiency is low, and the locking box is easy to age and damage, and the service life is low. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a ball valve operating handle applied to quick locking of a hydropower station. The utility model has the characteristics of both improving the efficiency of rotating the ball valve and facilitating quick locking of the ball valve.

[0005] The technical solution of the utility model: A ball valve operating handle applied to quick locking of a hydropower station, including an operating part and a locking part that are cooperatively locked. The operating part includes several connecting rods that are rotatably connected to each other. The end of the first connecting rod is provided with a connection head connected to the handle, and the last connecting rod is provided with a first lock hole; the locking part includes a fixing part installed on the valve body, and the fixing part is provided with a second lock hole that cooperatively connects with the first lock hole.

[0006] In the aforementioned ball valve operating handle applied to quick locking of a hydropower station, the fixing part adopts a fixing ring sleeved on the valve body pipeline. One side of the fixing ring is provided with a connecting plate, and the second lock hole is located on the connecting plate.

[0007] In the aforementioned ball valve operating handle applied to quick locking of a hydropower station, the connection head adopts a screw. The handle is provided with a connection hole. One end of the screw is threadedly or fixedly connected to the connecting rod, and the other end of the screw is threadedly connected to the connection hole.

[0008] In the aforementioned ball valve operating handle applied to quick locking of a hydropower station, the first connecting rod and the handle are vertically distributed on the surface.

[0009] In the aforesaid ball valve operating handle applied to rapid locking of a hydropower station, adjacent connecting rods are rotationally connected through a rotating shaft.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] In the present utility model, the operating member is connected to the handle of the ball valve, and the locking member is connected to the valve body of the ball valve. When it is necessary to rotate the ball valve to adjust the opening and closing degree of the ball valve, the operating member can be unfolded and used as the crank of the ball valve handle. Especially when operating a large rotating ball valve, the working intensity of the operator is greatly reduced, ensuring that the operator can complete the opening and closing operations of the ball valve more time-saving and labor-saving, and improving work efficiency; after the ball valve adjustment operation is completed, the operating member can be directly folded so that the first locking hole on the connecting rod is opposite to the second locking hole on the locking member, and directly locked, with strong fixing reliability, and reducing the complexity of the ball valve locking work and improving the operation convenience. Description of the Drawings

[0012] Figure 1 is the structural schematic diagram of the present utility model.

[0013] Figure 2 is the folded structural schematic diagram of the operating member.

[0014] The reference signs in the drawings are: 1, ball valve; 11, handle; 111, connection hole; 12, valve body; 2, operating member; 21, connecting rod; 22, screw; 23, first locking hole; 3, locking member; 31, fixing ring; 32, connecting plate; 33, second locking hole. Detailed Embodiments

[0015] The following further illustrates the present utility model in conjunction with the drawings and embodiments, but it shall not be used as the basis for limiting the present utility model.

[0016] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" shall 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0017] Embodiment:

[0018] As Figure 1 - Figure 2As shown in the figure, a ball valve operating handle applied to the quick locking of a hydropower station includes an operating member 2 and a locking member 3 that cooperate with each other for locking. The operating member 2 includes several connecting rods 21 that are rotatably connected to each other. The end of the first connecting rod 21 is provided with a connecting head connected to the handle 11, and the last connecting rod 21 is provided with a first lock hole 23.

[0019] The fixed part is a fixing ring 31 sleeved on the pipeline of the valve body 12. One side of the fixing ring 31 is provided with a connecting plate 32, and the second lock hole 33 is located on the connecting plate 32.

[0020] The fixing ring 31 can be a fixing ring with a fixed size, which is made according to the size of the valve body pipeline and is directly welded on the outer side of the valve body 12 pipeline.

[0021] The fixing ring 31 can also be an adjustable fixing ring 31. For example, an opening is provided on one side of the fixing ring 31, and a locking bolt connecting both ends of the opening is provided at the opening, so that the fixing ring 31 can be suitable for installation on ball valves 1 with different sizes.

[0022] The connecting head adopts a screw rod 22. The handle 11 is provided with a connecting hole 111. One end of the screw rod 22 is threadedly or fixedly connected to the connecting rod 21, and the other end of the screw rod 22 is threadedly connected to the connecting hole 111.

[0023] The first connecting rod 21 is vertically distributed on the surface of the handle 11.

[0024] Adjacent connecting rods 21 are rotatably connected by a rotating shaft, which is convenient for adjusting the angle between adjacent connecting rods 21, so that the operating member 2 presents different forms in different working states.

[0025] When using the product of the present utility model, the operating member 2 is connected to the connecting hole 111 on the handle 11 through the screw rod 22. At this time, each connecting rod 21 of the operating member 2 can be unfolded into a horizontal state as the crank of the handle 11 to increase the torque, thereby facilitating the rotation of the handle 11, saving time and effort, and improving the working efficiency of adjusting the ball valve 1.

[0026] Connect the locking member 3 to the valve body 12 of the ball valve 1. When it is necessary to lock the on-off state of the ball valve 1, rotate the angle of each connecting rod 21 so that the first lock hole 23 on the connecting rod 21 corresponds to the second lock hole 33 on the locking member 3, and then use a padlock to connect the first lock hole 23 and the second lock hole 33 for locking, so as to lock the fully open or fully closed state of the ball valve 1, realize reliable and quick locking of the ball valve 1, with strong locking reliability, avoid the ball valve 1 from being accidentally moved by others and affecting the opening and closing degree, and prevent the ball valve 1 from being accidentally opened or closed. The overall locking operation is simple, convenient and fast.

[0027] The parts not described in detail in this utility model are prior arts and thus will not be specifically elaborated herein.

Claims

1. A ball valve operating handle applied to rapid locking of a hydropower station, characterized in that: It includes an operating part (2) and a locking part (3) that cooperate and lock with each other. The operating part (2) includes several connecting rods (21) that are rotatably connected to each other. The end of the first connecting rod (21) is provided with a connecting head connected to the handle (11), and the last connecting rod (21) is provided with a first locking hole (23); the locking part (3) includes a fixing part installed on the valve body (12), and the fixing part is provided with a second locking hole (33) that cooperates with the first locking hole (23).

2. A ball valve operating handle applied to rapid locking of a hydropower station according to claim 1, characterized in that: The fixing part is a fixing ring (31) sleeved on the pipeline of the valve body (12). A connecting plate (32) is provided on one side of the fixing ring (31), and the second locking hole (33) is located on the connecting plate (32).

3. A ball valve operating handle applied to rapid locking of a hydropower station according to claim 1, characterized in that: The connecting head is a screw rod (22). A connecting hole (111) is provided on the handle (11). One end of the screw rod (22) is threadedly or fixedly connected to the connecting rod (21), and the other end of the screw rod (22) is threadedly connected to the connecting hole (111).

4. A ball valve operating handle applied to rapid locking of a hydropower station according to claim 1, characterized in that: The first connecting rod (21) is vertically distributed with respect to the surface of the handle (11).

5. A ball valve operating handle applied to rapid locking of a hydropower station according to claim 1, characterized in that: Adjacent connecting rods (21) are rotatably connected through a rotating shaft.

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