Transmission type disc handle gate valve

Abstract

The utility model relates to the technical field of disc handle gate valves, in particular to a transmission type disc handle gate valve which comprises a main pipeline, an opening and closing assembly, a transmission assembly, an operation assembly and an installation assembly, the opening and closing assembly is arranged on the inner side of the main pipeline, the transmission assembly is arranged above the main pipeline, and the operation assembly is arranged above the transmission assembly. Two sets of mounting assemblies are arranged at one end of the main pipeline, the opening and closing assembly comprises a gate seat, a first secondary pipeline, a second secondary pipeline, a connecting pipe, a gate plate, a fixing block and a limiting rod, the gate seat is arranged on the inner side of the main pipeline, the first secondary pipeline is arranged below the main pipeline, and the second secondary pipeline is arranged below the main pipeline; a connecting pipe is arranged below the main pipeline; the gate valve is opened and closed step by step through the multi-stage opening and closing structure, the situation that when the gate valve is in a local opening state, medium flow speed is too high, vibration is easily generated at the opening and closing structure, and a sealing face is damaged is reduced, and stability and safety of the gate valve are improved.

Description

Technical Field

[0001] This utility model relates to the field of disc handle gate valve technology, and in particular to a transmission type disc handle gate valve. Background Technology

[0002] Traditional disc gate valves are widely used in industrial production and fluid control, but their opening and closing methods are often relatively simple. They are usually opened or closed at once by directly operating the handle or transmission mechanism. When the gate valve is partially open, the medium flow rate is too fast, which can easily cause vibration at the opening and closing structure, thereby damaging the sealing surface and affecting the stability and service life of the gate valve.

[0003] Therefore, to address the aforementioned issues, a transmission-type disc handle gate valve is proposed. This valve opens and closes gradually through a multi-stage opening and closing structure, reducing the risk of vibration damage to the sealing surface caused by excessively high medium flow rate during partial opening, thus improving the stability and safety of the gate valve. Utility Model Content

[0004] In order to overcome the problem that when traditional disc gate valves are in operation, the medium flow rate is too fast when the gate valve is partially open, which can easily cause vibration at the opening and closing structure, thereby damaging the sealing surface and affecting the stability and service life of the gate valve.

[0005] The technical solution of this utility model is as follows: a transmission-type disc handle gate valve, comprising a main pipeline, an opening and closing assembly, a transmission assembly, an operating assembly, and an installation assembly. The opening and closing assembly is provided on the inner side of the main pipeline, the transmission assembly is provided above the main pipeline, the operating assembly is provided above the transmission assembly, and the installation assembly is provided at one end of the main pipeline. Two sets of installation assemblies are provided. The opening and closing assembly includes a gate seat, a primary pipeline, a secondary pipeline, a connecting pipe, a gate plate, a fixing block, and a limit rod. The gate seat is provided on the inner side of the main pipeline, the primary pipeline is provided below the main pipeline, the secondary pipeline is provided below the main pipeline, and the connecting pipe is provided below the main pipeline. The connecting pipe is connected to the primary pipeline and the secondary pipeline. The gate plate is provided on the inner side of the main pipeline, and two sets of gate plates are provided. The fixing block is provided on the inner side of the main pipeline, and two sets of fixing blocks are provided. A limit rod is provided on one side of the fixing block, and the gate plate and the limit rod are slidably connected.

[0006] Preferably, when the gate seat moves upward from the bottom of the connecting pipe, the second pipe is opened first, allowing the liquid to flow from one end of the main pipe to the other along the second pipe. The gate seat continues to move upward to the gate plate position. When the gate seat moves above the gate plate, the two sets of gate plates move linearly towards the center of the main pipe under the pressure of the water flow, thereby opening the connection between the main pipe and the first pipe, allowing the liquid to flow from one end of the main pipe to the other through the first pipe. Thus, the gate valve is opened and closed gradually through a multi-stage opening and closing structure, reducing the possibility of excessive medium flow velocity and vibration damage to the sealing surface at the opening and closing structure when the gate valve is partially open, thereby improving the stability and safety of the gate valve.

[0007] Preferably, the transmission assembly includes a fixed frame and a connecting plate, with the fixed frame located above the main pipeline and the connecting plate located on one side of the gate seat.

[0008] Preferably, the transmission assembly also includes a threaded rod and a first gear. The threaded rod is provided on the inner side of the fixed frame, and the threaded rod is threadedly connected to the connecting plate. One end of the threaded rod is provided with the first gear, and the first gear is keyway connected to the threaded rod.

[0009] Preferably, the transmission assembly further includes a second gear and a third gear, with the second gear disposed on one side of the first gear and the third gear disposed on one side of the second gear, the first gear and the second gear being meshed together, and the second gear and the third gear being meshed together.

[0010] Preferably, the operating component includes a rotating shaft and an operating handle. The rotating shaft is provided on the inner side of the fixing frame, and the rotating shaft is connected to the keyway of the third gear. An operating handle is provided at one end of the rotating shaft.

[0011] Preferably, the operating components also include a sealing ring, with the sealing ring provided on the outer side of the rotating shaft.

[0012] Preferably, the mounting assembly includes a mounting pipe and a flange, with the mounting pipe installed at one end of the main pipeline and the flange installed at the other end of the mounting pipe.

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

[0014] This invention, through the gate seat moving upwards from the bottom of the connecting pipe, first opens the second pipe, allowing liquid to flow from one end of the main pipe to the other. The gate seat continues to move upwards to the gate plate position. When the gate seat moves above the gate plate, the two sets of gate plates move linearly towards the center of the main pipe under the pressure of the water flow, thereby opening the connection between the main pipe and the first pipe, allowing liquid to flow from one end of the main pipe to the other through the first pipe. Thus, the gate valve is opened and closed gradually through a multi-stage opening and closing structure, reducing the risk of vibration damage to the sealing surface at the opening and closing structure when the gate valve is partially open due to excessively high medium flow rate, thereby improving the stability and safety of the gate valve. Attached Figure Description

[0015] Figure 1 The diagram shown is a first three-dimensional structural schematic of the transmission-type disc handle gate valve of this utility model.

[0016] Figure 2 The diagram shown is a second three-dimensional structural schematic of the transmission-type disc handle gate valve of this utility model.

[0017] Figure 3 The diagram shown is a first cross-sectional view of the transmission-type disc handle gate valve of this utility model.

[0018] Figure 4 The diagram shown is a second cross-sectional view of the transmission-type disc handle gate valve of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Main pipe; 101. Gate seat; 102. First pipe; 103. Second pipe; 104. Connecting pipe; 105. Gate plate; 106. Fixing block; 107. Limiting rod; 201. Fixing frame; 202. Connecting plate; 203. Threaded rod; 204. First gear; 205. Second gear; 206. Third gear; 301. Rotating shaft; 302. Operating handle; 303. Sealing ring; 401. Mounting pipe; 402. Flange. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figure 1 This utility model provides an embodiment: a transmission-type disc handle gate valve, including a main pipe 1, an opening and closing assembly, a transmission assembly, an operating assembly, and an installation assembly. The opening and closing assembly is arranged inside the main pipe 1, the transmission assembly is arranged above the main pipe 1, the operating assembly is arranged above the transmission assembly, and the installation assembly is arranged at one end of the main pipe 1. Two sets of installation assemblies are provided. The opening and closing assembly includes a gate seat 101, a primary pipe 102, a secondary pipe 103, a connecting pipe 104, a gate 105, a fixing block 106, and a limiting rod 107. The gate is arranged inside the main pipe 1. The main pipe 1 is located below the main pipe 1, and a secondary pipe 103 is also located below the main pipe 1. A connecting pipe 104 is located below the main pipe 1, and the connecting pipe 104 is connected to the primary pipe 102 and the secondary pipe 103. A gate 105 is located inside the main pipe 1, and two sets of gate 105 are provided. A fixing block 106 is located inside the main pipe 1, and two sets of fixing blocks 106 are provided. A limit rod 107 is provided on one side of the fixing block 106. The gate 105 and the limit rod 107 are slidably connected.

[0022] Please see Figures 2-4In this embodiment, the transmission assembly includes a fixed frame 201 and a connecting plate 202. The fixed frame 201 is disposed above the main pipe 1, and the connecting plate 202 is disposed on one side of the gate seat 101. The transmission assembly also includes a threaded rod 203 and a first gear 204. The threaded rod 203 is disposed on the inner side of the fixed frame 201. The threaded rod 203 and the connecting plate 202 are threadedly connected. The first gear 204 is disposed at one end of the threaded rod 203. The first gear 204 and the threaded rod 203 are keyway connected. The transmission assembly also includes a second gear 205 and a third gear 206. The first gear 204... A second gear 205 is provided on one side of the first gear 204, and a third gear 206 is provided on the other side of the second gear 205. The first gear 204 and the second gear 205 are meshed together. The second gear 205 and the third gear 206 are meshed together. In use, the rotation of the third gear 206 drives the rotation of the second gear 205, which in turn drives the rotation of the first gear 204. The rotation of the first gear 204 drives the rotation of the threaded rod 203, which in turn drives the connecting plate 202 to move up and down. The up and down movement of the connecting plate 202 drives the gate seat 101 to move up and down.

[0023] The operating assembly includes a rotating shaft 301 and an operating handle 302. The rotating shaft 301 is located on the inner side of the fixed frame 201. The rotating shaft 301 is connected to the third gear 206 via a keyway. The operating handle 302 is located at one end of the rotating shaft 301. In use, rotating the operating handle 302 drives the rotating shaft 301 to rotate, which in turn drives the third gear 206 to rotate. The operating assembly also includes a sealing ring 303. The sealing ring 303 is located on the outer side of the rotating shaft 301. In use, the sealing ring 303 seals the connection between the rotating shaft 301 and the fixed frame 201. The installation assembly includes an installation pipe 401 and a flange 402. The installation pipe 401 is located at one end of the main pipeline 1, and the flange 402 is located at the other end. In use, the installation pipe 401 can be connected to the external pipeline structure via the flange 402, thereby installing the disc handle gate valve.

[0024] When working, first ensure that the gate valve is correctly installed in the piping system and that flange 402 is tightly connected to the external piping structure;

[0025] During operation, the rotating shaft 301 is first rotated by rotating the operating handle 302; when the rotating shaft 301 rotates, the third gear 206 is rotated through the keyway connection; the third gear 206 meshes with the second gear 205, thereby driving the first gear 204 to rotate; the rotation of the first gear 204 is transmitted to the connecting plate 202 through the threaded rod 203, causing the connecting plate 202 to drive the gate seat 101 to move up and down along the main pipeline 1; when the gate seat 101 begins to rise, the second pipeline 103 is opened first, allowing the fluid to flow along the second pipeline 103; as the gate seat 101 continues to rise, when the gate seat 101 moves above the gate plate 105, the two sets of gate plates 105 are linearly moved towards the center of the main pipeline 1 under the pressure of the water flow, opening the connection between the first pipeline 102 and the main pipeline 1, allowing the fluid to flow mainly through the first pipeline 102;

[0026] When closing the gate valve, the operation process is the reverse of opening; by rotating the operating handle 302 in the opposite direction, the third gear 206 rotates in the opposite direction, which in turn drives the entire transmission assembly to move in the opposite direction. The gate seat 101 gradually descends, and the gate plate 105 moves to both sides under the action of the limit rod 107, closing the connection between the main pipeline 1 and the first pipeline 102; when the gate seat 101 is fully descended, the second pipeline 103 is also closed, realizing the complete closure of the gate valve.

[0027] Through the above steps, when the gate seat 101 moves upward from the bottom of the connecting pipe 104, the second pipe 103 is first opened, allowing the liquid to flow from one end of the main pipe 1 to the other end along the second pipe 103. The gate seat 101 continues to move upward to the position of the gate plate 105. When the gate seat 101 moves above the gate plate 105, the two sets of gate plates 105 are linearly moved towards the center of the main pipe 1 under the pressure of the water flow, thereby opening the connection between the main pipe 1 and the first pipe 102, allowing the liquid to flow from one end of the main pipe 1 to the other end through the first pipe 102. Thus, the gate valve is opened and closed step by step using a multi-stage opening and closing structure, reducing the possibility of the medium flow rate being too fast when the gate valve is partially open, which could easily cause vibration damage to the sealing surface at the opening and closing structure, thereby improving the stability and safety of the gate valve.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A drive-type disc gate valve, comprising a main pipe (1); characterized in that: It also includes an opening and closing assembly, a transmission assembly, an operating assembly, and an installation assembly. The opening and closing assembly is provided on the inner side of the main pipe (1), the transmission assembly is provided above the main pipe (1), the operating assembly is provided above the transmission assembly, and the installation assembly is provided at one end of the main pipe (1). There are two sets of installation assemblies. The opening and closing assembly includes a gate seat (101), a primary pipe (102), a secondary pipe (103), a connecting pipe (104), a gate plate (105), a fixing block (106), and a limit rod (107). The gate seat (101) is provided on the inner side of the main pipe (1), and the primary pipe is provided below the main pipe (1). (102) A second pipe (103) is provided below the main pipe (1). A connecting pipe (104) is provided below the main pipe (1). The connecting pipe (104) is connected to the first pipe (102). The connecting pipe (104) is connected to the second pipe (103). A gate (105) is provided on the inner side of the main pipe (1). Two sets of gates (105) are provided. A fixing block (106) is provided on the inner side of the main pipe (1). Two sets of fixing blocks (106) are provided. A limit rod (107) is provided on one side of the fixing block (106). The gate (105) and the limit rod (107) are slidably connected.

2. The transmission-type disc gate valve according to claim 1, characterized in that: The transmission assembly includes a fixed frame (201) and a connecting plate (202). The fixed frame (201) is provided above the main pipe (1), and the connecting plate (202) is provided on one side of the gate seat (101).

3. A transmission-type disc gate valve according to claim 2, characterized in that: The transmission assembly also includes a threaded rod (203) and a first gear (204). The threaded rod (203) is provided on the inner side of the fixed frame (201). The threaded rod (203) and the connecting plate (202) are threadedly connected. The first gear (204) is provided at one end of the threaded rod (203). The first gear (204) and the threaded rod (203) are keyway connected.

4. A transmission-type disc gate valve according to claim 3, characterized in that: The transmission assembly also includes a second gear (205) and a third gear (206). The second gear (205) is provided on one side of the first gear (204), and the third gear (206) is provided on one side of the second gear (205). The first gear (204) and the second gear (205) are meshed together, and the second gear (205) and the third gear (206) are meshed together.

5. A transmission-type disc gate valve according to claim 2, characterized in that: The operating components include a rotating shaft (301) and an operating handle (302). The rotating shaft (301) is provided on the inner side of the fixing frame (201). The rotating shaft (301) is connected to the third gear (206) via a keyway. The operating handle (302) is provided at one end of the rotating shaft (301).

6. A transmission-type disc gate valve according to claim 5, characterized in that: The operating components also include a sealing ring (303), and the sealing ring (303) is provided on the outside of the rotating shaft (301).

7. A transmission-type disc gate valve according to claim 1, characterized in that: The mounting assembly includes a mounting pipe (401) and a flange (402). One end of the main pipe (1) is provided with the mounting pipe (401), and the other end of the mounting pipe (401) is provided with the flange (402).

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