CN220117130U

CN220117130U - Gate device capable of stopping and pressurizing

Info

Publication number: CN220117130U
Application number: CN202320120518.3U
Authority: CN
Inventors: 周柯宇; 张宏
Original assignee: Sinohydro Bureau 7 Co Ltd
Current assignee: Sinohydro Bureau 7 Co Ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-12-01
Anticipated expiration: 2033-02-06

Abstract

The utility model discloses a gate device capable of stopping and pressurizing, which comprises a hydraulic cylinder, wherein a piston is arranged in the hydraulic cylinder in a sliding manner, one side of the piston is fixedly provided with a piston rod, one end of the piston rod, which is far away from the piston, is positioned outside the hydraulic cylinder and is connected with a gate, a rodless cavity and a rod cavity are arranged in the hydraulic cylinder, the gate device also comprises a pressurizing assembly communicated with the rodless cavity, the pressurizing assembly comprises a hydraulic pump communicated with the rodless cavity, and an oil tank is communicated with the hydraulic pump. The utility model has the beneficial effects that: the gate can be pressurized when the gate is stopped, so that the closing force of the gate is increased, and the lifting phenomenon is avoided.

Description

Gate device capable of stopping and pressurizing

Technical Field

The utility model relates to the technical field of water conservancy auxiliary equipment, in particular to a gate device capable of stopping and pressurizing.

Background

The gate is installed on the aperture of the building such as overflow dam, spillway on the bank, water discharge hole, hydraulic tunnel and sluice, etc. to regulate flow, control up and down water level, discharge flood, remove silt or float, etc. it is an important component of hydraulic building, in sluice engineering, the gate is the main body part, often occupies most of the water retaining area.

The high water head gate has complex water stop design, high manufacturing and installation requirements and high water leakage treatment difficulty. When the gate runs at high water level, the buoyancy of the gate is increased, when the buoyancy of the gate is larger than the lower pressure of the gate (gate gravity + water seal friction + closing force of the hoist), and the closing force of the hoist is zero when the hoist is stopped, the gate gravity and the water seal friction are unchanged, the gate is influenced by the increase of the water buoyancy, the lifting phenomenon occurs, the water seal compression amount is reduced, and the gate leaks.

Therefore, it is necessary to provide a gate device capable of stopping and pressurizing, which can pressurize the gate when the gate is stopped, so as to increase the closing force of the gate and avoid the lifting phenomenon.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a gate device capable of stopping and pressurizing, which can pressurize a gate when the gate is stopped, so that the closing force of the gate is increased, and the lifting phenomenon is avoided.

The aim of the utility model is realized by the following technical scheme: the utility model provides a gate device that can shut down and pressurize, includes the pneumatic cylinder, the pneumatic cylinder slides and is provided with the piston, piston one side is fixed to be provided with the piston rod, piston rod keeps away from piston one end and is located the pneumatic cylinder and link to each other with the gate, interior rodless chamber and the pole chamber of having in the pneumatic cylinder still include the pressurization subassembly with rodless chamber UNICOM, the pressurization subassembly includes the hydraulic pump with rodless chamber UNICOM, the hydraulic pump UNICOM has the oil tank.

The hydraulic pump is a manual hydraulic pump.

And a pressure gauge for detecting the oil pressure of the rodless cavity is arranged between the hydraulic pump and the rodless cavity.

A one-way valve is disposed between the hydraulic pump and the rodless chamber to allow fluid flow from the hydraulic pump to the rodless chamber.

An oil outlet is formed in the rodless cavity, and a stop valve is arranged on the oil outlet.

And one end of the piston rod is provided with a hinge shaft which is connected with the gate.

The beneficial effects of the utility model are as follows: the hydraulic pump sends liquid oil to the rodless cavity in the hydraulic cylinder, so that the rodless cavity runs under pressure, the pressure in the rodless cavity is regulated, namely, the closing force of the hydraulic hoist is increased, and finally, the purposes of increasing the compression amount of the bottom water seal and the top water seal of the gate and preventing the gate from leaking water are achieved.

Drawings

FIG. 1 is a schematic diagram of the connection of the present utility model;

in the figure, a 1-hydraulic cylinder, a 11-rodless cavity, a 12-rod cavity, a 2-piston, a 3-piston rod, a 4-pressurizing assembly, a 41-hydraulic pump, a 42-oil tank, a 43-pressure gauge, a 44-one-way valve, a 5-stop valve and a 6-hinge shaft are arranged.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the following description, the terms "left", "right", "upper", "lower", "front", "rear", "inner" and "outer" are relative terms, and are not intended to be exhaustive.

A gate device capable of stopping and pressurizing, referring to fig. 1, comprises a hydraulic cylinder 1. A piston 2 is slidably arranged in the hydraulic cylinder 1. The piston 2 is provided with a piston rod 3. The left end of the piston rod 3 extends out of the hydraulic cylinder 1 and is positioned outside the hydraulic cylinder 1. The piston 2 divides the hydraulic cylinder 1 into a rod-shaped chamber 12 at the left end of the piston 2 and a rodless chamber 11 at the right end of the piston 2. The left end of the piston rod 3 is provided with a hinge shaft 6, and the hinge shaft 6 is connected with a gate.

The rodless chamber 11 is in communication with the pressurizing assembly 4. The pressurizing assembly 4 includes a hydraulic pump 41. In the present embodiment, the hydraulic pump 41 is a manual hydraulic pump. It will be appreciated by those skilled in the art that the hydraulic pump 41 may be an electric hydraulic pump, and the manual hydraulic pump is adopted in the present embodiment to reduce the cost and facilitate manual operation. One end of the hydraulic pump 41 communicates with the rodless chamber 11 through a high pressure hose. A check valve 44 is provided in the high pressure hose. The check valve 44 ensures that fluid does not flow back from the rodless chamber 11 to the hydraulic pump 41. The high-pressure hose is provided with a pressure gauge 43 for detecting the oil pressure. The other end of the hydraulic pump 41 is communicated with an oil tank 42.

When the gate is stopped, the buoyancy of the gate is increased due to the fact that the water level is increased, the buoyancy of the gate is larger than the lower pressure of the gate (the lower pressure of the gate is gate gravity, water seal friction force and closing force of the hoist), and the lifting phenomenon occurs at the moment. The hydraulic pump 41 is operated to inject liquid oil into the rodless cavity 11, so that the pressure in the rodless cavity is increased, the closing force of the hoist is increased, and the buoyancy of the gate is ensured to be smaller than the gate downward pressure.

For the problems of water sealing of the top water or bottom water of the gate caused by insufficient compression amount in installation or design of the gate. By adopting the scheme, the compression amount of the gate bottom water seal and the top water seal can be increased by pressurizing the rodless cavity, so that the aim of preventing the gate from leaking water is fulfilled.

Compared with the traditional method, the scheme only needs to cost three thousand to five thousand yuan for carrying out the counterweight on the gate to increase the closing force of the hoist, and the traditional method is adopted for carrying out the counterweight on the gate to cost at least one hundred thousand yuan, so that the scheme is lower in cost.

An oil outlet is arranged on the rodless cavity 11, and a stop valve 5 is arranged at the oil outlet. When the liquid oil in the rodless cavity 11 needs to be discharged, the stop valve is removed, so that the liquid oil in the rodless cavity 11 can be led out from the oil outlet.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a gate device that can shut down and pressurize, includes pneumatic cylinder (1), the interior piston (2) that is provided with of pneumatic cylinder (1), piston (2) one side is fixed to be provided with piston rod (3), piston rod (3) are kept away from piston (2) one end and are located outside pneumatic cylinder (1) and link to each other with the gate, interior rodless chamber (11) and the pole chamber (12) have in pneumatic cylinder (1), a serial communication port, still include with the pressurization subassembly (4) of rodless chamber (11) UNICOM, pressurization subassembly (4) include with the hydraulic pump (41) of rodless chamber (11) UNICOM, hydraulic pump (41) UNICOM has oil tank (42).

2. A gate apparatus capable of stopping and pressurizing as claimed in claim 1, wherein: the hydraulic pump (41) is a manual hydraulic pump.

3. A gate apparatus capable of stopping and pressurizing as claimed in claim 1, wherein: a pressure gauge (43) for detecting oil pressure is arranged between the hydraulic pump (41) and the rodless cavity (11).

4. A gate apparatus capable of stopping and pressurizing as claimed in claim 1, wherein: a check valve (44) is provided between the hydraulic pump (41) and the rodless chamber (11) to allow fluid flow from the hydraulic pump (41) to the rodless chamber (11).

5. A gate apparatus capable of stopping and pressurizing as claimed in claim 1, wherein: an oil outlet is formed in the rodless cavity (11), and a stop valve (5) is arranged on the oil outlet.

6. A gate apparatus capable of stopping and pressurizing as claimed in claim 1, wherein: one end of the piston rod (3) is provided with a hinge shaft (6), and the hinge shaft (6) is connected with the gate.