High-strength gate valve

Abstract

The utility model relates to the technical field of gate valves, and discloses a high-strength gate valve which comprises a gate valve body, one side of the gate valve body is fixedly connected with a gate valve inlet, the other side of the gate valve body is fixedly connected with a gate valve outlet, and the top end of the gate valve body is movably connected with a lifting rod. The side face, close to the gate valve inlet, in the gate valve body is movably connected with a buffering mechanism, and the side face, close to the gate valve outlet, in the gate valve body is movably connected with a supporting mechanism. A first output gear is driven to rotate when a first rotating wheel is rotated, a first transmission gear is driven to rotate when the first output gear rotates, the first transmission gear rotates to drive a rotating shaft in the first transmission gear to rotate, then a filter plate rotates, the filter plate can block entering water flow, and then the impact force of the water flow on a flashboard is buffered; and T, the strength of the filter is higher, and different buffering forces are provided by adjusting the rotating angle of the filter plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gate valve, more particularly to a high strength gate valve. BACKGROUND

[0002] Gate valve refers to the valve that the closing piece moves along the vertical direction of the center line of the passage. The gate valve can only be fully opened and closed in the pipeline and cannot be adjusted and throttled. The gate valve is a kind of valve with wide application range. The cut-off device with a general diameter DN≥50mm selects it. Sometimes the cut-off device with very small diameter also selects the gate valve.

[0003] The opening and closing piece of the gate valve is the gate plate. The movement direction of the gate plate is perpendicular to the fluid direction. The gate valve can only be fully opened and closed and cannot be adjusted and throttled. The gate valve is a kind of valve with wide application range. The two sealing surfaces of the most commonly used mode gate plate valve form a wedge-shaped structure.

[0004] Nowadays, when the gate valve is used, if the flow rate of water flow is fast or the water flow is large, the gate plate will be subjected to a large water flow impact force when being opened and closed. At this time, the gate plate is easy to be damaged. When the gate plate is damaged, there is a possibility of water leakage. When the gate plate is damaged, the entire gate valve needs to be scrapped. Therefore, the overall use cost is increased. TECHNICAL SOLUTION

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a high strength gate valve to solve the problems in the above background art.

[0006] The utility model provides the following technical scheme: a high strength gate valve, including the gate valve main part, one side of the gate valve main part is fixedly connected with the gate valve entrance, the other side of the gate valve main part is fixedly connected with the gate valve outlet, the top of the gate valve main part is movably connected with the lifting rod, the bottom of the lifting rod is fixedly connected with the gate plate, the side surface of the gate valve main part is movably connected with the buffer mechanism near the gate valve entrance, the side surface of the gate valve main part is movably connected with the supporting mechanism near the gate valve outlet, the buffer mechanism includes the first rotating wheel that can rotate, the top of the first rotating wheel is fixedly connected with the first output gear, the side surface of the first output gear is engaged with the first transmission gear, the top of the first transmission gear is fixedly connected with the rotating shaft, the top of the rotating shaft is fixedly connected with the filter plate.

[0007] Further, the two sides of the gate valve main part are fixedly connected with the reinforcing ribs, the side surfaces of the two reinforcing ribs away from the gate valve main part are fixedly connected with the gate valve entrance and the gate valve outlet respectively, the buffer mechanism is located inside and below the gate valve entrance, and the supporting mechanism is located inside and below the gate valve outlet.

[0008] Further, the top end of the filter plate is fixedly connected with the inside of the gate valve inlet through a rotating shaft, the side surface of the filter plate is kept away from the side surface of the gate valve inlet, and the inside of the filter plate is provided with a through hole.

[0009] Further, the support mechanism comprises a second rotating wheel which can be adjusted, the top end of the second rotating wheel is fixedly connected with a second output gear, the side surface of the second output gear is engaged with a second transmission gear, the top end of the second transmission gear is fixedly connected with a rotating rod, and the top end of the rotating rod is fixedly connected with a support plate.

[0010] Further, when the support plate is parallel to the gate plate, the two side surfaces of the support plate are not in contact with the inside of the gate valve outlet, and the inside of the support plate is provided with a water flow through hole.

[0011] Further, the bottom end of the rotating rod and the bottom end of the rotating shaft are both provided with sealing rings, the sealing rings can prevent water flow from leaking when the rotating rod and the rotating shaft rotate, and when the support plate is perpendicular to the gate plate, the side surface of the support plate is in contact with the side surface of the gate plate.

[0012] The technical effects and advantages of the utility model are as follows:

[0013] 1. The utility model discloses a first rotating wheel, a first output gear, a rotating shaft and a filter plate are arranged, when the first rotating wheel rotates, the first output gear is driven to rotate, when the first output gear rotates, the first transmission gear is driven to rotate, the rotating shaft in the first transmission gear is driven to rotate, and then the filter plate rotates, the filter plate can block the water flow, and the impact force of the water flow on the gate plate is buffered, so that the strength of the utility model is higher, and the angle of the filter plate is adjusted to provide different buffering forces.

[0014] 2. The utility model discloses a second rotating wheel, a second output gear, a second transmission gear and a support plate are arranged, when the second rotating wheel rotates, the second output gear is driven to rotate, when the second output gear rotates, the rotating rod is driven to rotate through the second transmission gear, when the rotating rod rotates, the support plate is driven to rotate, when the support plate rotates and contacts the gate plate, the gate plate is supported, and the strength of the gate plate is improved. DRAWINGS

[0015] Figure 1 It is the gate valve inlet structure schematic drawing of the utility model.

[0016] Figure 2 It is the gate valve outlet structure schematic drawing of the utility model.

[0017] Figure 3 It is the inside structure schematic drawing of the gate valve main body of the utility model.

[0018] Figure 4The buffering mechanism structure schematic view of the utility model.

[0019] Figure 5 The support mechanism structure schematic view of the utility model.

[0020] The figure mark is: 1, gate valve main body;2, gate valve entrance;3, gate valve exit;4, lifting rod;5, gate;6, reinforcing rib;7, buffering mechanism;701, first runner;702, first output gear;703, first transmission gear;704, rotation shaft;705, filter plate;8, support mechanism;801, second runner;802, second output gear;803, second transmission gear;804, rotation rod;805, support plate. DETAILED DESCRIPTION

[0021] The technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model, and in addition, the form of each structure recorded in the following implementation is only an example, and all other implementation obtained by the ordinary skilled in the art without making creative labor belongs to the range of protection of the utility model.

[0022] Referring to Figure 1 , Figure 2 and Figure 3 , the utility model provides a kind of high-strength gate valve, including gate valve main body 1, one side of gate valve main body 1 is fixedly connected with gate valve entrance 2, the other side of gate valve main body 1 is fixedly connected with gate valve exit 3, the top of gate valve main body 1 is movably connected with lifting rod 4, the bottom of lifting rod 4 is fixedly connected with gate 5, buffering mechanism 7 is movably connected with the side surface in gate valve main body 1 close to gate valve entrance 2, support mechanism 8 is movably connected with the side surface in gate valve main body 1 close to gate valve exit 3, both sides of gate valve main body 1 are fixedly connected with reinforcing rib 6, the side surface of two reinforcing ribs 6 away from gate valve main body 1 is fixedly connected with gate valve entrance 2 and gate valve exit 3 respectively, buffering mechanism 7 is inside and below gate valve entrance 2, support mechanism 8 is inside and below gate valve exit 3.

[0023] In the embodiment of the application, the two sides of gate valve main body 1 are fixedly connected with reinforcing rib 6, and gate valve entrance 2 and gate valve exit 3 are connected by reinforcing rib 6, so that the connection strength between gate valve entrance 2 and gate valve exit 3 and gate valve main body 1 is strengthened, and the strength of the utility model during use is improved.

[0024] Referring to Figure 3 and Figure 4, the buffering mechanism 7 comprises a rotatable first rotating wheel 701, the top end of the first rotating wheel 701 is fixedly connected with a first output gear 702, the side surface of the first output gear 702 is engaged with a first transmission gear 703, the top end of the first transmission gear 703 is fixedly connected with a rotating shaft 704, the top end of the rotating shaft 704 is fixedly connected with a filter plate 705, the top end of the filter plate 705 is fixedly connected with the inside of the gate valve inlet 2 through the rotating shaft 704, the side surface of the filter plate 705 is away from the side surface of the gate valve inlet 2, and the inside of the filter plate 705 is provided with a through hole, and the filter plate 705 is not in contact with the gate plate 5 before and after rotation.

[0025] In the embodiment of the application, the first rotating wheel 701 drives the first output gear 702 to rotate, and the first output gear 702 drives the filter plate 705 to rotate through the transmission of the first transmission gear 703 and the rotating shaft 704. After the filter plate 705 rotates, the filter plate 705 is parallel to the gate plate 5. At this time, the filter plate 705 can buffer the fluid in the gate valve inlet 2, reduce the impact force of the fluid impacting the gate plate 5, and the side surface of the filter plate 705 is away from the inside of the gate valve body 1. The inside of the filter plate 705 is provided with a through hole, and the fluid can pass through the filter plate 705 to avoid blockage. The buffering force is different at different angles of the filter plate 705, so that the application is more convenient to use, and can be adjusted according to the actual situation and used in different environments.

[0026] Referring to Figure 3 With Figure 5 , the supporting mechanism 8 comprises an adjustable second rotating wheel 801, the top end of the second rotating wheel 801 is fixedly connected with a second output gear 802, the side surface of the second output gear 802 is engaged with a second transmission gear 803, the top end of the second transmission gear 803 is fixedly connected with a rotating rod 804, the top end of the rotating rod 804 is fixedly connected with a supporting plate 805, when the supporting plate 805 is parallel to the gate plate 5, the two sides of the supporting plate 805 are not in contact with the inside of the gate valve outlet 3, and the inside of the supporting plate 805 is provided with a water flow through hole, the bottom end of the rotating rod 804 and the bottom end of the rotating shaft 704 are both provided with a sealing ring, the sealing ring avoids water leakage when the rotating rod 804 and the rotating shaft 704 rotate, and when the supporting plate 805 is perpendicular to the gate plate 5, the side surface of the supporting plate 805 is in contact with the side surface of the gate plate 5.

[0027] In the embodiment of the application, the second rotating wheel 801 drives the second output gear 802 to rotate, the second output gear 802 drives the rotating rod 804 to rotate, and then the supporting plate 805 rotates, and the supporting plate 805 is in contact with the gate plate 5 after rotation, thereby supporting the gate plate 5 and further improving the strength of the gate plate 5. The fluid can normally pass through the hole in the inside of the supporting plate 805, and when the gate plate 5 is opened and the water flow flows from the gate valve inlet 2 to the gate valve outlet 3, the supporting plate 805 will not have a great impact on the water flow.

[0028] The working principle of the utility model is: when the water flow is large or the flow rate is fast, rotate the first runner 701, the first runner 701 rotates and drives the first output gear 702 to rotate, the first output gear 702 rotates and drives the first transmission gear 703 to rotate, the first transmission gear 703 rotates and drives the filter plate 705 to rotate through the rotating shaft 704 above it, after the filter plate 705 rotates, the filter plate 705 is parallel to the gate plate 5, at this time the filter plate 705 can buffer the fluid in the gate valve inlet 2, reduce the impact force of the fluid impacting the gate plate 5, and the side surface of the filter plate 705 is away from the inside of the gate valve main body 1, the inside of the filter plate 705 is provided with a through hole, the fluid can pass through the filter plate 705, avoiding the situation of blockage;

[0029] When the strength of the gate plate 5 needs to be strengthened again, rotate the second runner 801, the second runner 801 rotates and drives the second output gear 802 to rotate, the second output gear 802 rotates and drives the rotating rod 804 to rotate, and then the supporting plate 805 rotates and contacts the gate plate 5, thereby supporting the gate plate 5 and further improving the strength of the gate plate 5, and when the supporting plate 805 does not need to be supported, the supporting plate 805 is parallel to the gate plate 5, the fluid can normally pass through the hole in the inside of the supporting plate 805, and the water flow will not be greatly affected.

[0030] Finally: the above is only the preferred embodiment of the utility model and is not used for limiting the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-strength gate valve comprising a gate valve body (1), characterized in that: Including the gate valve body (1), one side of the gate valve body (1) is fixedly connected with the gate valve inlet (2), the other side of the gate valve body (1) is fixedly connected with the gate valve outlet (3), the top end of the gate valve body (1) is movably connected with the lifting rod (4), the bottom end of the lifting rod (4) is fixedly connected with the gate plate (5), the side of the gate valve body (1) close to the gate valve inlet (2) is movably connected with the buffer mechanism (7), the side of the gate valve body (1) close to the gate valve outlet (3) is movably connected with the supporting mechanism (8); The buffer mechanism (7) comprises a first rotating wheel (701) which can rotate, the top end of the first rotating wheel (701) is fixedly connected with a first output gear (702), the side of the first output gear (702) is engaged with a first transmission gear (703), the top end of the first transmission gear (703) is fixedly connected with a rotating shaft (704), and the top end of the rotating shaft (704) is fixedly connected with a filter plate (705).

2. A high strength gate valve according to claim 1, characterized in that: Both sides of the gate valve body (1) are fixedly connected with reinforcing ribs (6), the sides of the two reinforcing ribs (6) away from the gate valve body (1) are fixedly connected with the gate valve inlet (2) and the gate valve outlet (3) respectively, the buffer mechanism (7) is located inside and below the gate valve inlet (2), and the supporting mechanism (8) is located inside and below the gate valve outlet (3).

3. A high strength gate valve as defined in claim 1, wherein: The top end of the filter plate (705) is fixedly connected with the inside of the gate valve inlet (2) through the rotating shaft (704), the side of the filter plate (705) is away from the side of the gate valve inlet (2), and the inside of the filter plate (705) is provided with a through hole, and the filter plate (705) is not in contact with the gate plate (5) before and after rotation.

4. A high strength gate valve as defined in claim 1, wherein: The supporting mechanism (8) comprises a second rotating wheel (801) which can be adjusted, the top end of the second rotating wheel (801) is fixedly connected with a second output gear (802), the side of the second output gear (802) is engaged with a second transmission gear (803), the top end of the second transmission gear (803) is fixedly connected with a rotating rod (804), and the top end of the rotating rod (804) is fixedly connected with a supporting plate (805).

5. A high strength gate valve according to claim 4, wherein: When the supporting plate (805) is parallel to the gate plate (5), the two sides of the supporting plate (805) are not in contact with the inside of the gate valve outlet (3), and the inside of the supporting plate (805) is provided with a water flow through hole.

6. A high strength gate valve according to claim 5, characterized in that: The bottom end of the rotating rod (804) and the bottom end of the rotating shaft (704) are provided with sealing rings, the sealing rings avoid water leakage when the rotating rod (804) and the rotating shaft (704) rotate, and when the supporting plate (805) is perpendicular to the gate plate (5), the side of the supporting plate (805) is in contact with the side of the gate plate (5).

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