Steel gate with ventilation structures on two sides

Abstract

The utility model discloses a steel gate with ventilation structures on two sides, which comprises a gate mechanism, a gate plate mechanism is mounted in the gate mechanism, the gate mechanism comprises two sliding plates, sliding grooves are formed in the sliding plates, the tops and the bottoms of the two sliding plates are respectively and fixedly connected with a top plate and a base, and the top plate is fixedly connected with the base. Ventilation heads are fixedly connected to the front side and the rear side of the opposite side of the sliding plate, the air inlet ends of the ventilation heads penetrate through the inner side of the sliding plate and are fixedly provided with filter screens, the air outlet ends of the ventilation heads communicate with connecting pipes, and the tops of the connecting pipes communicate with air outlet pipes. The steel gate has the advantage of being good in safety, and the problems that in the using process of an existing steel gate with a ventilation structure, bubbles impacting the side wall of the gate are inconvenient to guide and discharge, the side wall of the gate is prone to being damaged by cavitation, and the service life of the steel gate is shortened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy equipment, in particular to a steel gate with ventilation structures on both sides. Background Technique

[0002] In water conservancy projects, a steel gate with ventilation structures on both sides is a common component of hydraulic structures. It consists of a gate and a gate panel, and is used to control water flow, block water, and release flood. Such gates are usually provided with ventilation holes. According to Bernoulli's principle, when high-speed water flow passes through the gate, it may cause a local pressure drop, which in turn leads to the precipitation of gas in the water flow to form bubbles. When these bubbles enter the high-pressure area with the water flow and quickly collapse, it will cause impact and erosion to the gate and its surrounding structures, that is, the cavitation phenomenon. Setting ventilation holes can help discharge this part of the gas and reduce cavitation damage. The generation and collapse of bubbles will not only cause cavitation, but also cause the vibration of the gate. The ventilation holes can effectively discharge the gas in the water flow, thereby reducing or avoiding the vibration caused by the "cavitation effect" and protecting the safety of the gate structure.

[0003] A gate structure with a new type of ventilation hole, with the Chinese patent application number 201420818193.7, includes a concrete bottom slab, a water retaining breast wall, and mass concrete. The gate is installed above the concrete bottom slab through a gate slot. The gate is located behind the water retaining breast wall. The water retaining breast wall and the mass concrete form a gate maintenance space above the gate. The rear of the gate is connected to the gate maintenance space through a ventilation hole, and the ventilation hole is of an inverted L-shaped structure. A safety grille is installed at the connection between the ventilation hole and the gate maintenance space. An inspection platform is also provided above the gate, and a protective railing is arranged around the inspection platform. The utility model connects the gate to the gate maintenance space by setting an inverted L-shaped ventilation hole, preventing the traditional ventilation hole that goes straight up and down from causing a rapid air flow at the top of the structure, and avoiding affecting the overall layout of the dam and the top of the water inlet.

[0004] During the use of the existing steel gate with a ventilation structure, it is not convenient to guide and discharge the bubbles impacting the side wall of the gate, which easily causes cavitation damage to the side wall of the gate and reduces the service life of the steel gate. Content of the Utility Model

[0005] The purpose of the utility model is to provide a steel gate with ventilation structures on both sides, which has the advantage of good safety, and solves the problem that during the use of the existing steel gate with a ventilation structure, it is not convenient to guide and discharge the bubbles impacting the side wall of the gate, which easily causes cavitation damage to the side wall of the gate and reduces the service life of the steel gate.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A steel gate with ventilation structures on both sides, including a gate mechanism, wherein a gate plate mechanism is installed inside the gate mechanism.

[0007] The gate mechanism includes two sliding plates. A chute is provided inside the sliding plate. The top and bottom of the two sliding plates are respectively fixedly connected with a top plate and a base. The front and rear sides on the opposite sides of the sliding plate are respectively fixedly connected with ventilation heads. The air inlet end of the ventilation head penetrates to the inner side of the sliding plate and is fixedly installed with a filter screen. The air outlet end of the ventilation head is communicated with a connecting pipe, and the top of the connecting pipe is communicated with an air outlet pipe.

[0008] As a preferred embodiment of the steel gate with ventilation structures on both sides of the present utility model, the gate plate mechanism includes a plate body and a lead screw. The plate body is located inside the chute cavity and is slidably connected with its inner wall. A handwheel is threadedly sleeved on the surface of the lead screw. A through hole is provided at the center of the base, and the handwheel is rotatably connected with the through hole.

[0009] As a preferred embodiment of the steel gate with ventilation structures on both sides of the present utility model, the bottom of the lead screw is fixedly connected with a fixing seat, and the fixing seat is fixedly sleeved on the top of the plate body.

[0010] As a preferred embodiment of the steel gate with ventilation structures on both sides of the present utility model, reinforcing structures are fixedly connected to both the front and rear sides of the plate body.

[0011] As a preferred embodiment of the steel gate with ventilation structures on both sides of the present utility model, one end of the filter screen is parallel to the inner side of the sliding plate.

[0012] As a preferred embodiment of the steel gate with ventilation structures on both sides of the present utility model, an electromagnetic valve communicated with it is fixedly installed at the top of the air outlet pipe.

[0013] As a preferred embodiment of the steel gate with ventilation structures on both sides of the present utility model, a backflush pipe is communicated with the surface of the air outlet pipe, and a joint is communicated with the top of the backflush pipe.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By setting the gate plate mechanism, the present utility model can facilitate the opening and closing of the steel gate. The user can drive the lead screw to move up and down by rotating the handwheel. The lead screw drives the plate body to slide through the fixing seat. The plate body slides inside the chute, and the chute limits the position of the plate body. By controlling the height of the plate body, water flow can pass through the gate mechanism. The reinforcing structures provided on both the front and rear sides of the plate body can strengthen the plate body and prevent the plate body from being deformed by impact.

[0016] 2. The utility model can facilitate the installation of the gate plate mechanism by setting up the gate mechanism. The handwheel is installed inside the through hole and rotates with it to limit the handwheel. When the inner side of the sliding plate is impacted by air bubbles, the air bubbles pass through the filter screen and enter the air vent head. The filter screen prevents impurities from entering the air vent head and causing blockage. The air bubbles are discharged into the air through the air vent head, the air outlet pipe and the solenoid valve, preventing the air bubbles from impacting the sliding plate. When it is necessary to perform backwashing and cleaning on the filter screen, the solenoid valve is closed, and an external air source is connected through the joint. Compressed air enters the air outlet pipe through the joint and the backwashing pipe, and then cleans the filter screen through the air vent head and the connecting pipe, preventing the filter screen from being blocked. Brief Description of the Drawings

[0017] Figure 1 is the front axonometric view of the utility model;

[0018] Figure 2 is the front axonometric view of the gate mechanism of the utility model;

[0019] Figure 3 is the front axonometric view of the gate plate mechanism of the utility model.

[0020] In the figure: 1. Gate mechanism; 101. Sliding plate; 102. Chute; 103. Top plate; 104. Through hole; 105. Joint; 106. Solenoid valve; 107. Backwashing pipe; 108. Air outlet pipe; 109. Connecting pipe; 110. Air vent head; 111. Base; 112. Filter screen; 2. Gate plate mechanism; 201. Plate body; 202. Fixed seat; 203. Handwheel; 204. Lead screw; 205. Reinforcing structure. Detailed Embodiment

[0021] Please refer to Figures 1-3 , a steel gate with ventilation structures on both sides, including a gate mechanism 1, and a gate plate mechanism 2 is installed inside the gate mechanism 1.

[0022] Furthermore, the gate mechanism 1 includes two sliding plates 101. A chute 102 is provided inside the sliding plate 101. The top and bottom of the two sliding plates 101 are respectively fixedly connected with a top plate 103 and a base 111. The front and rear sides on the opposite sides of the sliding plate 101 are respectively fixedly connected with an air vent head 110. The air inlet end of the air vent head 110 penetrates to the inner side of the sliding plate 101 and is fixedly installed with a filter screen 112. The air outlet end of the air vent head 110 is communicated with a connecting pipe 109, and the top of the connecting pipe 109 is communicated with an air outlet pipe 108.

[0023] Furthermore, one end of the filter screen 112 is parallel to the inner side of the sliding plate 101.

[0024] Furthermore, a solenoid valve 106 communicated with it is fixedly installed at the top of the air outlet pipe 108.

[0025] Further, a recoil pipe 107 is connected to the surface of the air outlet pipe 108, and a joint 105 is connected to the top of the recoil pipe 107.

[0026] By providing the gate mechanism 1, it is convenient to install the gate plate mechanism 2. The handwheel 203 is installed inside the through hole 104 and rotates with it to limit the handwheel 203. When the inner side of the sliding plate 101 is impacted by air bubbles, the air bubbles pass through the filter screen 112 and enter the air vent head 110. The filter screen 112 prevents impurities from entering the air vent head 110 and causing blockage. The air bubbles are discharged into the air through the air vent head 110, the air outlet pipe 108, and the solenoid valve 106, preventing the air bubbles from impacting the sliding plate 101. When it is necessary to perform recoil cleaning on the filter screen 112, the solenoid valve 106 is closed, and an external air source is connected through the joint 105. Compressed air enters the air outlet pipe 108 through the joint 105 and the recoil pipe 107, and then cleans the filter screen 112 through the air vent head 110 and the connecting pipe 109, preventing the filter screen 112 from being blocked.

[0027] Further, the gate plate mechanism 2 includes a plate body 201 and a lead screw 204. The plate body 201 is located inside the sliding groove 102 and is slidably connected to its inner wall. A handwheel 203 is threadedly sleeved on the surface of the lead screw 204. A through hole 104 is provided at the center of the base 111, and the handwheel 203 is rotatably connected to the through hole 104.

[0028] Further, a fixed seat 202 is fixedly connected to the bottom of the lead screw 204, and the fixed seat 202 is fixedly sleeved on the top of the plate body 201.

[0029] Further, strengthening structures 205 are fixedly connected to both the front and rear sides of the plate body 201.

[0030] By providing the gate plate mechanism 2, it is convenient to control the opening and closing of the steel gate. The user can drive the lead screw 204 to move up and down by rotating the handwheel 203. The lead screw 204 drives the plate body 201 to slide through the fixed seat 202. The plate body 201 slides inside the sliding groove 102, and the sliding groove 102 limits the plate body 201. By controlling the height of the plate body 201, water flow can pass through the gate mechanism 1. The strengthening structures 205 provided on both the front and rear sides of the plate body 201 can strengthen the plate body 201 and prevent the plate body 201 from being deformed by impact.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel gate with ventilation structures on both sides, comprising a gate mechanism (1), wherein a gate mechanism (2) is installed inside the gate mechanism (1), characterized in that: The gate mechanism (1) comprises two sliding plates (101), wherein a sliding groove (102) is provided inside the sliding plates (101), and the top and bottom of the two sliding plates (101) are respectively fixedly connected to a top plate (103) and a base (111), and the front and rear sides of opposite sides of the sliding plates (101) are fixedly connected to vent heads (110), the air inlet end of the vent head (110) passes through the inner side of the sliding plates (101) and is fixedly installed with a filter screen (112), and the air outlet end of the vent head (110) is connected to a connecting pipe (109), and the top of the connecting pipe (109) is connected to an air outlet pipe (108).

2. A steel gate with ventilation structures on both sides according to claim 1, characterized in that: The gate mechanism (2) comprises a plate body (201) and a screw rod (204); the plate body (201) is located in the inner cavity of the slide groove (102) and is slidably connected to the inner wall thereof; a hand wheel (203) is threadedly sleeved on the surface of the screw rod (204); a through hole (104) is opened at the center of the base (111); and the hand wheel (203) is rotatably connected to the through hole (104).

3. The steel gate with ventilation structures on both sides according to claim 2, characterized in that: The bottom of the screw rod (204) is fixedly connected to a fixing seat (202), and the fixing seat (202) is fixedly sleeved on the top of the plate body (201).

4. The steel gate with ventilation structures on both sides according to claim 2, characterized in that: The front and rear sides of the plate body (201) are both fixedly connected with a reinforcement structure (205).

5. The steel gate with ventilation structures on both sides according to claim 1, characterized in that: One end of the filter screen (112) is parallel to the inner side of the sliding plate (101).

6. The steel gate with ventilation structures on both sides according to claim 1, characterized in that: A solenoid valve (106) in communication with the air outlet pipe (108) is fixedly mounted on the top of the air outlet pipe (108).

7. The steel gate with ventilation structures on both sides according to claim 1, characterized in that: The surface of the air outlet pipe (108) is connected to a recoil pipe (107), and the top of the recoil pipe (107) is connected to a joint (105).

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