CN104947633A - Automatic rotary switch for culvert type double-hole plane gates - Google Patents

Abstract

The invention discloses an automatic rotary switch for a culvert-type double-hole plane gate, which includes a plane gate and a control mechanism in a double-hole gate chamber on a dike, and a cooperating gate and a support position are arranged inside the plane gate; it is characterized in that the The control mechanism includes a cylindrical sleeve shaft, a shrinking steel cable, a steel cable lug, a fixed pulley, a gear and a movable leaf; the center of the plane gate is provided with a cylinder sleeve shaft to form a rotary plane gate; the two sides of the plane gate are connected Open and close doors and flip pages. A central gate pier is arranged between the plane gates, the tip of which faces upstream, and the gate chambers on both sides of the gate pier form a gate wall with the gate close to the embankment, and a control double-hole plane gate automatic rotary switch is arranged on the top of the gate pier. The invention is ahead of the traditional technology in the world, and has the advantages of simple structure, safety and firmness.

Description

Culvert type double hole plane gate automatic rotary switch

technical field

The invention relates to the technical field of water conservancy equipment, and more specifically relates to an automatic switch of a culvert-type double-hole planar gate.

Background technique

The frictional resistance of the traditional planar gate is large when opening and closing, which affects the opening and closing force. The opening and closing platform must be high, the space is too large, and there are too many obstacles in the chamber of the automatic flap gate, and it is generally not possible to wash sand through the wood at high water heads. Flood discharge and farmland irrigation generally use wooden boards to retain water, which is laborious and labor-intensive. The irresistible water pressure impacts the culvert gates and makes it difficult to open and close; therefore, labor costs are spared to ensure the safety and firmness of the gates. A large amount of steel is used for the long-arm support outside the door, and a hoist is installed in each hole, and the electric switch of the opening and closing platform above the dam surface; The kiosk, the power hoist connects the corbel, support arm, bracket, etc., has a complex structure, wastes steel, is not automatic, and the labor cost is too high. In the traditional huge hoist pavilion, the hoist has no effect on the anti-pressure of the gate and the reinforcement of the dam.

Contents of the invention

The purpose of the present invention is to solve the deficiencies of the prior art, and to provide a culvert-type double-hole plane in order to solve the problem of starting the gate in still water, closing it under the pressure of water, using a cooperative gate to connect the opening and closing gate, and ensuring the safety of the gate after closing. Gate automatic rotary switch.

The present invention is to adopt following technical solution to realize above-mentioned purpose:

An automatic rotary switch for a culvert-type double-hole planar gate, including a planar gate and a control mechanism in the double-hole gate on the embankment, and a cooperating door and a support position are arranged inside the planar gate; the feature is that the control mechanism includes a circular Sleeve shaft, retractable steel cable, cable lug, fixed pulley, gear and movable page; the center of the plane gate is provided with a cylinder sleeve shaft to form a rotary plane gate; Page.

A central gate pier is arranged between the plane gates, the tip of which faces upstream, and the gate chambers on both sides of the gate pier form a gate wall with the gate close to the embankment, and a control double-hole plane gate automatic rotary switch is arranged on the top of the gate pier.

The sluice chamber of the gate is provided with a half-width water diversion threshold near the side of the sluice pier, which is less than 10% of the space of the other half of the sluice chamber. When the water source flow rate is too small, the gate will not be closed automatically.

The supporting positions, gears, and steel cables in the middle of the cooperating door are turned to the top of the pier by connecting multiple fixed pulleys to form an automatic rotary switch that controls the double-hole gate as a whole.

A backup artificially opened and closed gate is also provided on the outside of the lock chamber close to the embankment.

The beneficial effect that the present invention can reach by adopting above-mentioned technical solution is:

1. The automatic switch of the planar gate of the present invention is suitable for culvert type, large flow, high water head, large gate, and can also be applied to open farmland irrigation domestic water with medium and low water head.

2. Connect the support position of the switch door through the cooperative door, obtain the water pressure of the sluice chamber as energy, automatically open and close the double-hole gate, and then control the contraction of the steel cable through gears, etc., to automatically open the door body. The cooperative door can help lift the gate, which is convenient for control The gate is safe and labor-saving.

3. The tip of the center pier faces upstream, which can reduce the impact of water pressure and ensure the safety of the gate without occupying the space of the lock chamber. The cooperative door is used to connect the opening and closing gate with the support position. When the mechanism discharges flood, it is close to the central pier to ensure the gate Security after closing.

Description of drawings

Fig. 1 is a schematic closed view of the structure plane of the double-hole gate of the present invention;

Fig. 2 is a schematic plane flood discharge diagram of a double-hole gate structure in another implementation state of the present invention.

Explanation of reference numerals: 1 embankment, 2 plane gate, 3 cylinder shaft, 4 water diversion threshold, 5 cable collection turning device, 6 cable hook lug, 7 central gate pier, 8 support position, 9 cable, 10 Spare opening and closing gate, 11 opening and closing gate, 12 movable page, 13 cooperation gate, 14 fixed pulley, 15 dam surface non-return device

Detailed ways

As shown in Figure 1 and Figure 2, the automatic rotary switch of the culvert type double-hole plane gate of the present invention includes a plane gate 2 and a control mechanism in the double-hole gate chamber on the embankment 1, and a cooperating door 13 is also arranged inside the plane gate 2 and support position 8; the control mechanism includes a cylindrical sleeve shaft 3, a steel cable 9, a cable lug 6, a fixed pulley 14 and a movable leaf 12; the center of the plane gate 2 is provided with a cylindrical sleeve shaft 3 to form a rotary Plane gate; the cooperating gates 13 on both sides of the plane gate 2 connect the switch gate 11 and the movable page 12 .

In the present invention, when there is no water in the sluice chamber, artificial standby opening and closing gates 10 are arranged on the embankment 1, and the double-hole planar gates are used to retain water in the sluice chamber: the gate area is the same size, up to the balance, down to the bottom of the gate, and the cylinder under the middle part Sleeve shaft 3 and upper shaft sleeve cylinder, the outer end of the door is connected with steel cable hook lug 6.

The water diversion threshold 4 accounts for 1/2 of the width of the sluice chamber, and the bottom of the sluice is 10% higher than the other side, and its effect is that the water flow is too small to assist the sluice to close automatically.

A central gate pier is arranged between the plane gates 2, and one end of the central gate pier 7 points to the upstream of the water source to reduce the impact of water pressure. The steel cable 9 is connected by a plurality of fixed pulleys 14, and the steel cable collection and turning device 5 straightens the steel cable. Turning to the top of the central gate pier 7, the dam surface non-return device 15 controls the automatic opening and closing of the gate.

When in use, when flood discharge is required, the gate 2 first pulls the switch gate 11 in still water to move upstream by 90 degrees, and the support position 8 tops the gate and opens to the outside, and the water pressure will gradually increase to drive the steel cable 9 gears to transmit power. The cooperating gates 13 on both sides are connected to the opening and closing gates 11, and are closed at the tip of the central gate pier 7 at the support position 8. At the same time, the double-hole gates 2 automatically rotate out of the space to discharge floods smoothly.

When it is necessary to close the double-hole gate, first separate the closed switch door 11 to accept the impact of the water flow pressure, the support position 8 automatically pushes up the wall of the gate pier, and the cooperation gate on the side of the gate pier 7 gradually increases the space for water intake, and the double-hole gate 2 It will automatically shut off the reverse flow,

After the gate is closed, the cooperation gate 13 is connected to the opening and closing gate 11, and through the support position 8 and the central gate pier 7, the closed double-hole gate is safe and firm.

During flood discharge, there is irresistible water pressure, wind blows and waves open and close the door and shift, which may easily lead to untimely and non-artificial self-closing of the gate! It is necessary to use a non-return device on the central gate pier to set up a clamping cable.

The present invention is aimed at small and medium-sized gates that can be manually operated and automatically opened and closed, and large-scale gates with a high water head with a hole area of more than 80 square meters; it is necessary to set a telescopic 3-meter-long (low tonnage) horizontal hydraulic press on the gate pier to start the switch gate 11; Chamber water shut off easily.

The present invention has a wide range of uses, and can be applied to farmland irrigation, so as to solve the problem of clear weather after rain without man-made efforts to restore irrigation. In still water, it is labor-saving to open the automatic rotary switch of the double-hole plane gate of the culvert, and the water pressure is slowed down like a finger.

The above embodiment of the present invention and what is shown in the accompanying drawings are only one of the preferred embodiments of the present invention, and the present invention should not be limited thereto. Under the condition of not departing from the essence of the present invention, any changes made by those skilled in the art belong to the protection scope of the present invention.

Claims (5)

1. A culvert-type double-hole planar gate automatic rotary switch, including a planar gate in the double-hole gate chamber on the embankment and a control mechanism on the central gate chamber, and the inner side of the plane gate is also provided with a cooperating door and a support connected to the switch gate position; it is characterized in that the control mechanism includes a cylindrical sleeve shaft, a shrinking steel cable, a steel cable lug, a fixed pulley, a gear and a movable page; the center of the plane gate is provided with a cylinder sleeve shaft to form a rotary plane gate; The cooperating gates on both sides of the plane gate are connected with the switch gate and the movable page. 2. According to the automatic rotary switch of the culvert-type double-hole plane gate according to claim 1, it is characterized in that: a central gate pier with the tip facing upstream is arranged between the plane gates, and the gate chambers on both sides of the gate pier are formed with the gate close to the embankment On the gate wall and on the top of the gate pier, an automatic rotary switch is set to control the double-hole plane gate. 3. According to claim 1, the automatic rotary switch of the culvert-type double-hole planar gate is characterized in that: the lock chamber of the gate is provided with a half-width water diversion threshold near the side of the gate pier, which is larger than the other half of the gate. Room space is less than ten percent. 4. According to the automatic rotary switch of the culvert-type double-hole plane gate according to claim 1, it is characterized in that: the supporting position, the gear and the steel cable in the middle of the cooperation gate are collectively turned to the top of the gate chamber by connecting a plurality of fixed pulleys to form an overall control Automatic rotary switch for double orifice gates. 5. The automatic rotary switch of the culvert-type double-hole planar gate according to claim 1, characterized in that: a spare opening and closing gate is provided on the outside of the gate close to the embankment.