Manual gate valve

Abstract

The utility model discloses a manual plug-in valve, including the valve body and the vertical setting on the valve cover of valve body top, the valve cover forward one side is provided with manual drive mechanism, and manual drive mechanism drive cooperation has the push plate, and the push plate vertical insertion is in the valve body, and the push plate forward one side is provided with the valve plate of same direction removal with it, through manual drive manual drive mechanism drive push plate and valve plate in the valve body and carry out up and down reciprocating movement, thereby make the valve body can be in the state of opening or closing, and through manual type drive, no electronic sensor, do not accept the magnetic field signal interference, run more stable, longer life.

Description

Technical Field

[0001] This utility model relates to the field of slide gate valves, and in particular to manual slide gate valves. Background Technology

[0002] Pneumatic slide gate valves are primary control devices for the flow or conveying of powders, granules, pellets, and small lumps of materials. They are widely used in industries such as metallurgy, mining, building materials, grain, and chemicals to control flow changes or quickly shut off supplies. Advantages of pneumatic slide gate valves include simple structure, flexible operation, light weight, no jamming, and suitability for conveying and regulating the flow of various solid materials and lumps or agglomerates around 50mm in size. Installation is not limited by angle, operation is convenient, and the opening can be adjusted at any time. Structural features include simple structure, flexible operation, light weight, no jamming, and fast shut-off. They are particularly suitable for conveying and regulating the flow of various non-viscosity solids, powders, and granules smaller than Φ10mm. Installation is not limited by angle, operation is convenient, and the opening can be adjusted at any time. They are mainly used for silo tops, bottoms, and inlets / outlets in industries such as building materials, metallurgy, mining, power, chemicals, glass, light industry, and grain. They are ideal devices for controlling large flow changes, frequent starts, and rapid shut-off. Most existing slide gate valves are pneumatic slide gate valves, which use a cylinder in conjunction with an electronic sensor to drive a lead screw to repeatedly move the valve plate horizontally, thus opening and closing the slide gate valve. A drawback is that the electronic sensor is susceptible to interference, which can affect the operation of the slide gate valve. Therefore, a manual slide gate valve has been proposed. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0004] A manual slide gate valve includes a valve body and a valve cover vertically disposed above the valve body. A manual drive mechanism is provided on the front side of the valve cover, and the manual drive mechanism drives a push plate. The push plate is vertically inserted into the valve body, and a valve plate that moves in the same direction as the push plate is provided on the front side of the push plate.

[0005] Preferably, the manual drive mechanism includes a crank handle rotatably disposed on one side of the valve cover, with one end of the crank handle hinged to a rocker arm, and the other end of the rocker arm hinged to a push plate.

[0006] Preferably, a mounting base is provided between the crank handle and the valve cover, and the mounting base is located on the front side of the valve cover. The crank handle is rotatably mounted on one side of the mounting base. A main shaft that rotates synchronously with the crank handle is arranged horizontally inside the mounting base, and the other end of the main shaft is hinged to the rocker arm.

[0007] Preferably, a plurality of steel balls are provided between the mounting base and the main shaft, and the plurality of steel balls are distributed around the inner side wall of the mounting base, and the plurality of steel balls are in rolling contact with the main shaft. A spring is provided between the plurality of steel balls and the mounting base, and one end of the spring is connected to the steel ball, and the other end of the spring is provided with an adjusting screw, which is inserted into the mounting base.

[0008] Preferably, a positioning hole is formed on one side of the mounting base, and the positioning hole penetrates the mounting base, and a locking screw is inserted inside the positioning hole.

[0009] Preferably, a chain is provided between the valve plate and the push plate, and the two ends of the chain are hinged to the valve plate and the push plate respectively. A return spring is also provided between the valve plate and the push plate, and one end of the return spring is elastically connected to the valve plate and the other end of the return spring is elastically connected to the push plate.

[0010] Preferably, the valve plate is provided with a limiting bearing that moves synchronously with it, and the limiting bearings are all rolled on both sides of the valve plate; a cam bearing is provided at the connection between the rocker arm and the push plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The manual drive mechanism drives the push plate and valve plate to move up and down reciprocally inside the valve body, allowing the valve body to be in an open or closed state. Furthermore, the manual drive eliminates the need for electronic sensors, preventing interference from magnetic field signals, resulting in more stable operation and a longer lifespan. Rotating the handle counterclockwise pulls the push plate upwards via the swing arm, moving the valve plate inside the valve body. The handle continues to rotate counterclockwise, pulling the entire valve plate upwards until the valve is fully open. Similarly, rotating the handle clockwise pulls the push plate downwards via the swing arm, moving the valve plate inside the valve body. The handle continues to rotate clockwise, pulling the entire valve plate downwards until the valve is closed.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0014] Figure 1 This is a schematic diagram of a manual slide gate valve.

[0015] Figure 2 This is another structural diagram of a manual slide gate valve;

[0016] Figure 3 This is another structural diagram of a manual slide gate valve.

[0017] The following components are shown in the diagram: 1. Valve body, 2. Limit bearing, 3. Valve plate, 4. Return spring, 5. Push plate, 6. Chain, 7. Cam bearing, 8. Valve cover, 9. Rocker arm, 10. Handle, 11. Positioning hole, 12. Main shaft, 13. Steel ball, 14. Spring, 15. Adjusting screw, 16. Locking screw. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 In this embodiment of the utility model, the manual slide gate valve includes a valve body 1 and a valve cover 8 vertically disposed above the valve body 1. The valve cover 8 has a manual drive mechanism on its front side, and the manual drive mechanism drives a push plate 5. The push plate 5 is vertically inserted into the valve body 1, and a valve plate 3 that moves in the same direction as the push plate 5 is disposed on its front side. Thus, by manually driving the manual drive mechanism, the push plate 5 and the valve plate 3 are driven to move up and down reciprocally inside the valve body 1, so that the valve body 1 can be in an open or closed state. Furthermore, due to the manual drive, there are no electronic sensors, so it is not affected by magnetic field signals, resulting in more stable operation and a longer service life.

[0020] The manual drive mechanism includes a crank 10 rotatably mounted on one side of the valve cover 8. One end of the crank 10 is hinged to a rocker arm 9, and the other end of the rocker arm 9 is hinged to a push plate 5. Rotating the crank 10 counterclockwise pulls the push plate 5 upward through the rocker arm 10, causing the valve plate 3 to move inside the valve body 1. At this time, the crank 10 continues to rotate counterclockwise, pulling the entire valve plate 3 upward until the valve plate 3 is fully open. Rotating the crank 10 clockwise pulls the push plate 5 downward through the rocker arm 10, causing the valve plate 3 to move inside the valve body 1. At this time, the crank 10 continues to rotate clockwise, pulling the entire valve plate 3 downward until the valve plate 3 is closed.

[0021] A mounting base (not shown in the figure) is provided between the crank handle 10 and the valve cover 8, and the mounting base is located on the front side of the valve cover 8. The crank handle 10 is rotatably mounted on one side of the mounting base. A main shaft 12 that rotates synchronously with the crank handle 10 is arranged horizontally inside the mounting base, and the other end of the main shaft 12 is hinged to the rocker arm 9 so that when the crank handle 10 is cranked and rotated, it synchronously drives the main shaft 12 to rotate and drives the rocker arm 10 to move up and down, thereby driving the valve plate 3 to rise and fall inside the valve body 1.

[0022] Multiple steel balls 13 are disposed between the mounting base and the main shaft 12, and the steel balls 13 are distributed around the inner side wall of the mounting base. The steel balls 13 are in rolling contact with the main shaft 12. A spring 14 is disposed between the steel balls 13 and the mounting base, and one end of the spring 14 is connected to the steel ball 13. An adjusting screw 15 is disposed at the other end of the spring 14. The adjusting screw 15 is inserted into the mounting base. By rotating the adjusting screw 15, it is driven to move into the mounting base, thereby pushing the steel ball 13 so that the steel ball 13 can make rolling contact with the main shaft 12. In order to keep the main shaft 12 stable when rotating inside the mounting base through the cooperation between the steel ball 13 and the adjusting screw 15.

[0023] The mounting base has a positioning hole 11 formed on one side, and the positioning hole 11 penetrates the mounting base. A locking screw 16 is inserted into the positioning hole 11. By rotating the locking screw 16, it moves into the positioning hole 11 until the locking screw 16 presses against the main shaft 12, so that the main shaft 12 cannot rotate inside the mounting base. This allows the valve plate 3 to be moved to the required lifting height and then fixed in position. The opening and closing stroke of the valve plate 3 can be adjusted arbitrarily to adapt to different working conditions.

[0024] A chain 6 is provided between the valve plate 3 and the push plate 5, and the two ends of the chain 6 are hinged to the valve plate 3 and the push plate 5 respectively. Thus, when the push plate 5 moves inside the valve body 1, the valve plate 3 moves along with it. A return spring 4 is also provided between the valve plate 3 and the push plate 5, and one end of the return spring 4 is elastically connected to the valve plate 3, and the other end of the return spring 4 is elastically connected to the push plate 5.

[0025] The valve plate 3 is provided with a limiting bearing 2 that moves synchronously with it, and the limiting bearing 2 is rolled on both sides of the valve plate 3. The limiting bearing 2 ensures that the valve plate 3 remains stable when it moves up and down inside the valve body 1. A cam bearing 7 is provided at the connection between the rocker arm 9 and the push plate 5, so that the rocker arm 9 and the push plate 5 can be hinged together through the cam bearing 7.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A manual slide gate valve, characterized in that, The valve includes a valve body and a valve cover vertically disposed above the valve body. The valve cover has a manual drive mechanism on its front side, and the manual drive mechanism drives a push plate. The push plate is vertically inserted into the valve body, and a valve plate that moves in the same direction as the push plate is disposed on its front side.

2. The manual slide gate valve according to claim 1, characterized in that, The manual drive mechanism includes a crank handle rotatably disposed on one side of the valve cover, with one end of the crank handle hinged to a rocker arm, and the other end of the rocker arm hinged to a push plate.

3. The manual slide gate valve according to claim 2, characterized in that, A mounting base is provided between the crank handle and the valve cover, and the mounting base is located on the front side of the valve cover. The crank handle is rotatably mounted on one side of the mounting base. A main shaft that rotates synchronously with the crank handle is arranged horizontally inside the mounting base, and the other end of the main shaft is hinged to the rocker arm.

4. The manual slide gate valve according to claim 3, characterized in that, Multiple steel balls are arranged between the mounting base and the main shaft, and the multiple steel balls are distributed around the inner side wall of the mounting base. The multiple steel balls are in rolling contact with the main shaft. A spring is arranged between the multiple steel balls and the mounting base, and one end of the spring is connected to the steel ball. The other end of the spring is provided with an adjusting screw, which is inserted into the mounting base.

5. The manual slide gate valve according to claim 3, characterized in that, The mounting base has a positioning hole formed on one side, and the positioning hole penetrates the mounting base, with a locking screw inserted inside the positioning hole.

6. The manual slide gate valve according to claim 1, characterized in that, A chain is provided between the valve plate and the push plate, and the two ends of the chain are hinged to the valve plate and the push plate respectively. A return spring is also provided between the valve plate and the push plate, and one end of the return spring is elastically connected to the valve plate and the other end of the return spring is elastically connected to the push plate.

7. The manual slide gate valve according to claim 2, characterized in that, The valve plate is equipped with a limiting bearing that moves synchronously with it, and the limiting bearings are all rolled on both sides of the valve plate; a cam bearing is provided at the connection between the rocker arm and the push plate.

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