Wear-resistant high-voltage power station gate valve

Abstract

The utility model discloses a wear-resistant high-voltage power station gate valve and relates to the field of gate valves. The wear-resistant high-voltage power station gate valve comprises a gate valve body, a valve rod and a rotating handle used for driving the valve rod are arranged on the gate valve body, a supporting plate is arranged on the gate valve body, a protective cover is movably connected to the supporting plate in a clamped mode, and the protective cover is used for protecting the valve rod and the rotating handle. A lubricating assembly used for lubricating the valve rod and the rotating handle is arranged on the protective cover. In the using process of the wear-resistant high-voltage power station gate valve, the protective cover is additionally arranged on the outer side of the gate valve body to provide dustproof and waterproof protection for the positions of the valve rod and the rotating handle, wear between the valve rod and the rotating handle is reduced, meanwhile, in cooperation with the design of the lubricating assembly, resistance of the transmission position of the valve rod and the rotating handle is further reduced, and service life is prolonged. The gate valve body, the valve rod and the rotating handle are good in abrasion resistance and long in service life, and use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a wear-resistant high-voltage power station gate valve. Background Art

[0002] Gate valve is a common valve used in pipelines. In power plants, especially thermal power plants, gate valves are needed to connect or block the flow of media under high temperature and high pressure conditions.

[0003] At present, the gate valve is mainly composed of a valve body, a valve stem, a gate plate and a rotating handle. During use, the valve stem is driven to move by rotating the rotating handle, and the gate plate is driven to move by the valve stem to control the opening and closing of the channel inside the valve body. Since the valve stem and the rotating handle are usually exposed to the outside, they are easily corroded by dust and moisture, which causes increased wear and tear at the connection and large resistance. Therefore, during long-term use, the valve stem and the rotating handle have poor wear resistance and short service life. In view of the shortcomings of the prior art, the utility model provides a wear-resistant high-voltage power station gate valve to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a wear-resistant high-voltage power station gate valve. During use, a protective cover is added to the outside of the gate valve body to provide dust and water protection for the valve stem and the rotating handle, thereby reducing the wear between the valve stem and the rotating handle. At the same time, the lubrication component design is combined to further reduce the resistance of the valve stem and the rotating handle transmission position, thereby ensuring that the gate valve body, valve stem and rotating handle have good wear resistance and long service life, thereby meeting the use requirements.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: A wear-resistant high-voltage power station gate valve, comprising a gate valve body, the gate valve body is provided with a valve stem and a rotating handle for driving the valve stem, and the gate valve body is provided with a support plate;

[0006] A protective cover is movably connected to the support plate, and the protective cover is used to provide protection for the valve stem and the rotating handle;

[0007] The protective cover is provided with a lubrication assembly for providing lubrication to the valve stem and the rotating handle. The lubrication assembly comprises a lubrication seat arranged on the protective cover, and a piston is movably clamped inside the lubrication seat.

[0008] Preferably, a spray hole is provided on the lubrication seat.

[0009] Preferably, a clamping assembly is provided between the support plate and the protective cover, and the clamping assembly comprises a fixing seat provided on the support plate and a plug-in block fixedly connected to the protective cover, and the plug-in block is movably clamped in the fixing seat.

[0010] Preferably, a spring is provided inside the fixing seat, two ends of the spring are fixedly connected with sliders, a locking rod is provided on the slider, a locking hole is provided on the plug-in block, and the locking rod is movably engaged in the locking hole.

[0011] Preferably, the sliding block is provided with a push handle.

[0012] Preferably, a sealing ring is fixedly connected to the protective cover.

[0013] The utility model discloses a wear-resistant high-voltage power station gate valve, which has the following beneficial effects:

[0014] This wear-resistant high-voltage power station gate valve provides dust and water protection for the valve stem and the rotating handle by adding a protective cover to the outside of the gate valve body during use, reducing the wear between the valve stem and the rotating handle. At the same time, the lubrication component design further reduces the resistance of the valve stem and the rotating handle transmission position, ensuring that the gate valve body, valve stem and rotating handle have good wear resistance and long service life to meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the fixing seat of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the protective cover of the utility model;

[0019] Figure 4 It is a cross-sectional view of the lubrication seat of the utility model.

[0020] In the figure: 1. gate valve body; 101. valve stem; 102. turning handle; 2. support plate; 3. fixing seat; 301. spring; 302. slider; 303. locking rod; 4. protective cover; 401. sealing ring; 5. plug-in block; 501. locking hole; 6. lubrication seat; 601. piston; 602. spray hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The embodiment of the present application provides a wear-resistant high-voltage power station gate valve, which solves the problem that the valve stem and the rotating handle in the prior art are usually exposed to the outside and easily corroded by dust and moisture, thereby causing increased wear and high resistance at the connection. Therefore, during long-term use, the valve stem and the rotating handle have poor wear resistance and short life.

[0023] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] The utility model embodiment discloses a wear-resistant high-voltage power station gate valve. Figure 1-4 As shown, it comprises a gate valve body 1, on which a valve stem 101 and a rotating handle 102 for driving the valve stem 101 are provided, and on which a support plate 2 is provided;

[0025] A protective cover 4 is movably connected to the support plate 2, and the protective cover 4 is used to provide protection for the valve stem 101 and the rotating handle 102;

[0026] The protective cover 4 is provided with a lubrication assembly for providing lubrication to the valve stem 101 and the rotating handle 102 . The lubrication assembly includes a lubrication seat 6 arranged on the protective cover 4 , and a piston 601 is movably clamped inside the lubrication seat 6 .

[0027] The lubricating seat 6 is provided with a spray hole 602 , and the spray hole 602 is provided to facilitate the lubricating grease inside the lubricating seat 6 to be sprayed out when the piston 601 is pushed.

[0028] Furthermore, a snap-on assembly is provided between the support plate 2 and the protective cover 4, and the snap-on assembly includes a fixed seat 3 arranged on the support plate 2 and a plug-in block 5 fixedly connected to the protective cover 4, and the plug-in block 5 is movably snap-connected in the fixed seat 3. The snap-on assembly has a compact structure, and the protective cover 4 is snap-connected and fixed in position on the support plate 2 by utilizing the cooperation of the plug-in block 5 and the fixed seat 3.

[0029] Furthermore, a spring 301 is provided inside the fixing seat 3, and sliders 302 are fixedly connected at both ends of the spring 301. A locking rod 303 is provided on the slider 302. A locking hole 501 is opened on the plug-in block 5, and the locking rod 303 is movably engaged in the locking hole 501. The design of the spring 301, the slider 302 and the locking rod 303 can ensure that after the protective cover 4 is engaged and fixed, it is fixed stably and is not easy to loosen or come off.

[0030] A push handle is provided on the slider 302 , and the push handle facilitates pushing the slider 302 and the locking rod 303 .

[0031] Furthermore, a sealing ring 401 is fixedly connected to the protective cover 4 , and the sealing ring 401 ensures good sealing between the protective cover 4 and the support plate 2 after being snap-fitted and fixed, thereby providing good protection for the valve stem 101 and the rotating handle 102 .

[0032] The wear-resistant high-voltage power station gate valve provides dust and water-proof protection for the valve stem 101 and the rotating handle 102 by adding a protective cover 4 to the outside of the gate valve body 1 during use, thereby reducing the wear between the valve stem 101 and the rotating handle 102. At the same time, the lubrication component design is used to further reduce the resistance of the transmission position of the valve stem 101 and the rotating handle 102, thereby ensuring that the gate valve body 1, the valve stem 101 and the rotating handle 102 have good wear resistance and a long service life, thereby meeting the use requirements.

[0033] When the protective cover 4 is clamped, the operation is convenient. First, the slider 302 and the locking rod 303 are pushed and the spring 301 is squeezed. At this time, the protective cover 4 and the support plate 2 are clamped, and the plug-in block 5 is inserted into the interior of the fixing seat 3. When it is fully inserted, the slider 302 and the locking rod 303 are released, and the spring 301 is reset and pushes the slider 302 and the locking rod 303 to move, so that the locking rod 303 is inserted into the locking hole 501, so as to fix the position of the plug-in block 5 and the protective cover 4.

[0034] After the protective cover 4 is snap-fitted and installed, the lubrication seat 6 is automatically located on both sides of the valve stem 101. Grease is stored inside the lubrication seat 6. When the piston 601 is pushed, the grease is sprayed out from the spray hole 602 and adheres to the transmission position of the valve stem 101 and the rotating handle 102, so that the valve stem 101 and the rotating handle 102 are easy to lubricate, with low resistance and good wear resistance.

Claims

1. A wear-resistant high-voltage power station gate valve, comprising a gate valve body (1), wherein the gate valve body (1) is provided with a valve stem (101) and a rotating handle (102) for driving the valve stem (101), characterized in that: A support plate (2) is provided on the gate valve body (1); A protective cover (4) is movably clamped on the support plate (2), and the protective cover (4) is used to provide protection for the valve stem (101) and the rotating handle (102); The protective cover (4) is provided with a lubrication assembly for providing lubrication to the valve stem (101) and the rotating handle (102), and the lubrication assembly comprises a lubrication seat (6) arranged on the protective cover (4), and a piston (601) is movably engaged inside the lubrication seat (6).

2. A wear-resistant high-voltage power station gate valve according to claim 1, characterized in that: The lubrication seat (6) is provided with a spray hole (602).

3. The wear-resistant high-voltage power station gate valve according to claim 1, characterized in that: A clamping assembly is provided between the support plate (2) and the protective cover (4), the clamping assembly comprising a fixing seat (3) arranged on the support plate (2) and a plug-in block (5) fixedly connected to the protective cover (4), the plug-in block (5) being movably clamped in the fixing seat (3).

4. A wear-resistant high-voltage power station gate valve according to claim 3, characterized in that: A spring (301) is provided inside the fixing seat (3), and two ends of the spring (301) are fixedly connected to sliders (302), and a locking rod (303) is provided on the slider (302). A locking hole (501) is provided on the plug-in block (5), and the locking rod (303) is movably engaged in the locking hole (501).

5. A wear-resistant high-voltage power station gate valve according to claim 4, characterized in that: The sliding block (302) is provided with a push handle.

6. The wear-resistant high-voltage power station gate valve according to claim 3, characterized in that: A sealing ring (401) is fixedly connected to the protective cover (4).

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