Electro-hydraulic quick-closing gate device

Abstract

The utility model relates to an electro-hydraulic quick-closing gate device which comprises an electro-hydraulic actuator, a guide rod and a gate which are sequentially connected. The electro-hydraulic actuator comprises a hydraulic oil cylinder, a hydraulic oil tank, an electric control box, an energy storage device, a power mechanism, a first reversing mechanism and a fixing support. The first end of the power mechanism is connected with the hydraulic oil tank, the second end of the power mechanism can communicate with the first end of the hydraulic oil cylinder and the second end of the hydraulic oil cylinder, the energy accumulator can communicate with the second end of the hydraulic oil cylinder, and the first reversing mechanism is configured to switch the second end of the hydraulic oil cylinder between communicating the second end of the power mechanism and communicating the energy accumulator. The hydraulic oil cylinder is arranged in the middle of the fixing support, the hydraulic oil tank and the power mechanism are arranged at the first side end of the fixing support, and the accumulator is arranged at the second side end of the fixing support. The electro-hydraulic quick-closing gate device can meet the condition that a gate needs to be closed quickly when rear-end equipment breaks down, meanwhile, the gate can be closed quickly when a system is in a power failure state, and the safety of rear-end process equipment and personnel is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gates, in particular to an electro-hydraulic quick-closing gate device. Background Art

[0002] Gates are a common flow control device in sewage treatment systems. Their primary function is to control the opening and closing of channels by moving them up and down via actuators, thereby controlling the flow of water. In current industrial systems, when a fault in the back-end process fails and cannot be handled, the equipment will issue a fault alarm, requiring the front-end water inlet to be quickly shut off. Sometimes, this is caused by system power failures or unexpected power outages. Conventional gates typically take approximately five minutes to close, and the equipment cannot operate during power outages. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an electro-hydraulic quick-closing gate device, which can meet the situation where the back-end equipment fails and needs to quickly close the gate. At the same time, it can also quickly close the gate when the system is out of power, ensuring the safety of back-end process equipment and personnel.

[0004] To achieve the purpose of the present invention, the present invention provides an electro-hydraulic quick-closing gate device, comprising an electro-hydraulic actuator, a guide rod and a gate connected in sequence; the electro-hydraulic actuator comprises a hydraulic cylinder, a hydraulic oil tank, an electrical control box, an accumulator, a power mechanism, a first reversing mechanism and a fixed bracket; the piston rod of the hydraulic cylinder extends from the first end of the hydraulic cylinder and is connected to the guide rod, the first end of the power mechanism is connected to the hydraulic oil tank, the second end of the power mechanism can be connected to the first end of the hydraulic cylinder and the second end of the hydraulic cylinder, the accumulator can be connected to the second end of the hydraulic cylinder, and the first reversing mechanism is configured to switch the second end of the hydraulic cylinder between being connected to the second end of the power mechanism and being connected to the accumulator; the power mechanism and the first reversing mechanism are respectively connected to the electrical control box; the hydraulic cylinder is arranged in the middle of the fixed bracket, the hydraulic oil tank and the power mechanism are arranged at the first side end of the fixed bracket, and the accumulator is arranged at the second side end of the fixed bracket.

[0005] In some embodiments of the present invention, the power mechanism includes an oil pump motor, the first reversing mechanism includes a solenoid valve, and the solenoid valve is configured to connect the second end of the hydraulic cylinder and the accumulator when power is off.

[0006] In some embodiments of the present invention, the power mechanism includes an oil pump motor and a manual pump, the first reversing mechanism includes a solenoid valve and a manual reversing valve, the oil pump motor and the manual pump are arranged in parallel, and the solenoid valve and the manual reversing valve are arranged in parallel.

[0007] In some embodiments of the present invention, the second end of the power mechanism is connected to the energy storage device.

[0008] In some embodiments of the present invention, the electro-hydraulic actuator further includes a second reversing mechanism configured to switch the second end of the power mechanism between connecting to the first end of the hydraulic cylinder and connecting to the second end of the hydraulic cylinder.

[0009] In some embodiments of the present invention, the first reversing mechanism is provided at the first side end of the fixing bracket.

[0010] In some embodiments of the present invention, the shaft guide frame includes a frame and a sliding sleeve provided on the frame, the frame has a mounting mechanism, and the guide rod is movably engaged with the sliding sleeve.

[0011] In some embodiments of the present invention, the electro-hydraulic quick-closing gate device also includes a detection mechanism, which is used to detect the opening of the gate or the position of the piston of the hydraulic cylinder; the electrical control box includes a display, which is used to display the opening of the gate or the position of the piston of the hydraulic cylinder.

[0012] In some embodiments of the present invention, the energy accumulator can also be connected to the first end of the hydraulic cylinder, and the electro-hydraulic actuator also includes a third reversing mechanism, which is configured to switch the energy accumulator between connecting to the first end of the hydraulic cylinder and the second end of the hydraulic cylinder.

[0013] In some embodiments of the present invention, the first end of the hydraulic cylinder and the second end of the hydraulic cylinder are connected to the hydraulic oil tank through valves respectively.

[0014] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0015] This new electro-hydraulic fast-closing gate device utilizes an accumulator to provide hydraulic pressure to the hydraulic cylinder, enabling rapid gate closure in the event of a back-end equipment failure. It can also rapidly close the gate during a system power outage, ensuring the safety of back-end process equipment and personnel. This electro-hydraulic fast-closing gate device features a compact structure, easy installation, and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the electro-hydraulic fast-closing gate device of the utility model from a first viewing angle.

[0017] Figure 2 It is a structural schematic diagram of an embodiment of the electro-hydraulic fast-closing gate device of the utility model at a second viewing angle.

[0018] Figure 3 It is a structural schematic diagram of the electro-hydraulic actuator of an embodiment of the electro-hydraulic fast-closing gate device of the utility model.

[0019] In the figure, 10-electro-hydraulic actuator, 20-shaft guide frame, 30-guide rod, 40-gate, 11-hydraulic cylinder, 12-oil pump motor, 13-solenoid valve, 14-manual pump, 15-manual reversing valve, 16-hydraulic oil tank, 17-electric control box, 18-energy accumulator, 19-fixed bracket.

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods. DETAILED DESCRIPTION

[0021] like Figures 1 to 3 As shown, the electro-hydraulic fast-closing gate device of this embodiment can quickly close the gate after a power outage, for example, in less than 30 seconds, ensuring the safety of the system's back-end equipment. The electro-hydraulic fast-closing gate device of this embodiment can be used in environmental protection fields such as drinking water, domestic sewage, industrial sewage, and petrochemical wastewater treatment. It can be installed in water flow control systems such as sewage treatment system lift pump stations, water intake pump rooms, and coarse screen tanks. It is not only suitable for ordinary water flow control valves, but also for other situations requiring rapid closure and automatic rapid closing of valves after power outages, thus having a wide range of applications.

[0022] Specifically, the electro-hydraulic quick-closing gate device of this embodiment includes an electro-hydraulic actuator 10, a guide rod 30, and a gate 40, which are connected in sequence. The electro-hydraulic actuator 10 drives the guide rod 30 to move, which in turn drives the gate 40 to move, thereby opening and closing the gate 40. The electro-hydraulic actuator 10, guide rod 30, and gate 40 can be installed sequentially from top to bottom, and the gate 40 can move up and down.

[0023] The electro-hydraulic actuator 10 mainly includes a hydraulic cylinder 11 , a hydraulic oil tank 16 , an electric control box 17 , an energy accumulator 18 , a power mechanism, a first reversing mechanism and a fixing bracket 19 .

[0024] The hydraulic cylinder 11 can be a conventional hydraulic cylinder device, comprising a cylinder housing a piston, which is connected to a piston rod. By injecting liquid into both ends of the cylinder, i.e., the piston, the piston moves along the cylinder. The piston drives the piston rod, which in turn drives linear motion of an object connected thereto. In this embodiment, the piston rod of the hydraulic cylinder 11 extends from a first end of the cylinder 11 and connects to a guide rod 30, thereby driving the guide rod 30 in linear motion, which in turn pulls the gate 40 to move.

[0025] The first end of the power mechanism is connected to the hydraulic oil tank 16, and the second end of the power mechanism can be connected to the first end of the hydraulic cylinder 11 and the second end of the hydraulic cylinder 11. The power mechanism can input oil from the hydraulic oil tank 16 into the first end of the hydraulic cylinder 11 or connect to the second end of the hydraulic cylinder 11, thereby moving the piston rod. For example, when the power mechanism inputs oil from the hydraulic oil tank 16 into the first end of the hydraulic cylinder 11, the piston moves toward the second end of the oil-input hydraulic cylinder 11, driving the gate 40 to move, for example, upward, thereby opening the gate 40; when the power mechanism inputs oil from the hydraulic oil tank 16 into the second end of the hydraulic cylinder 11, the piston moves toward the first end of the oil-input hydraulic cylinder 11, driving the gate 40 to move, for example, downward, thereby closing the gate 40.

[0026] The accumulator 18 can be connected to the second end of the hydraulic cylinder 11. The accumulator 18 can input the oil in the accumulator 18 into the second end of the hydraulic cylinder 11. The piston moves toward the first end of the hydraulic cylinder 11 to input the oil, thereby driving the gate 40 to move, for example, downward, thereby closing the gate 40, achieving rapid gate closing, and avoiding equipment failure and personnel safety threats caused by the gate not closing in time when the back-end equipment fails. The accumulator 18 can be an existing hydraulic energy storage device, such as a bladder accumulator. The bladder accumulator is provided with a gas-filled bladder, such as an inert gas. When the bladder accumulator is charged, oil enters the bladder accumulator, the bladder is compressed, and then the opening of the bladder accumulator is closed, thereby storing pressure. When the bladder accumulator releases hydraulic pressure, the opening of the bladder accumulator opens, the pressure in the bladder accumulator decreases, and the bladder expands, thereby discharging the oil.

[0027] The first reversing mechanism is configured to switch the second end of the hydraulic cylinder 11 between connection to the second end of the power mechanism and connection to the accumulator 18. When the second end of the hydraulic cylinder 11 is connected to the second end of the power mechanism, oil is pressed into the second end of the hydraulic cylinder 11 by the power mechanism, closing the gate 40 under normal circumstances. In the event of a power outage, a problem downstream, or other circumstances requiring rapid closure of the gate 40, the second end of the hydraulic cylinder 11 is connected to the accumulator 18. The accumulator 18 can quickly discharge oil to the second end of the hydraulic cylinder 11, allowing the gate 40 to close quickly, for example, within 30 seconds, to avoid damage to downstream equipment.

[0028] The power mechanism and the first reversing mechanism are respectively connected to an electric control box 17 , and the electric control box 17 controls the actions of the power mechanism and the first reversing mechanism.

[0029] The hydraulic cylinder 11 is arranged in the middle of the fixed bracket 19, the hydraulic oil tank 16 and the power mechanism are arranged at the first side end of the fixed bracket 19, and the accumulator 18 is arranged at the second side end of the fixed bracket 19, so that the center of gravity of the electro-hydraulic actuator 10 is as close to the middle as possible. The electro-hydraulic actuator 10 has a simple and compact structure and stable installation.

[0030] In some examples, the power mechanism includes an oil pump motor 12 , which converts electricity into mechanical energy to pump oil in the hydraulic oil tank 16 into the first end or the second end of the hydraulic cylinder 11 .

[0031] In some examples, the first reversing mechanism includes a solenoid valve 13, which is configured to connect the second end of the hydraulic cylinder 11 to the accumulator 18 when power is off. During a power outage, the solenoid valve 13 is de-energized, the second end of the hydraulic cylinder 11 connects to the accumulator 18, and oil in the accumulator 18 enters the second end of the hydraulic cylinder 11, causing the gate 40 to automatically and quickly close.

[0032] In some examples, the power mechanism includes an oil pump motor 12 and a manual pump 14, which are arranged in parallel. In certain situations, such as power outages, faults, or emergencies, if the gate 40 needs to be opened or closed, the manual pump 14 can be used to manually input oil from the hydraulic oil tank 16 to the first end or the second end of the hydraulic cylinder 11, thereby opening and closing the gate 40. The first reversing mechanism includes a solenoid valve 13 and a manual reversing valve 15, which are arranged in parallel. In certain situations, such as if the solenoid valve 13 is damaged, manual reversing can be performed to enable the accumulator 18 to connect to the second end of the hydraulic cylinder 11 in a timely manner.

[0033] In some examples, the second end of the power mechanism can be connected to the energy accumulator 18. For example, the power mechanism can be connected to the energy accumulator 18 through an electrically controlled valve. When the energy accumulator 18 needs to store energy, oil is input into the energy accumulator 18 through the power mechanism.

[0034] In some examples, the electro-hydraulic actuator 10 further includes a second reversing mechanism configured to switch the second end of the power mechanism between connecting to the first end of the hydraulic cylinder 11 and connecting to the second end of the hydraulic cylinder 11 to achieve opening and closing of the gate 40 .

[0035] In some examples, the first reversing mechanism is disposed at a first side end of the fixing bracket 19 for ease of installation and structural stability.

[0036] In some examples, the electro-hydraulic quick-closing gate device further includes a shaft guide frame 20, which comprises a frame and a sliding sleeve mounted thereon. The frame can be constructed of a metal, such as stainless steel, for its strength, while the sliding sleeve can be constructed of a plastic, such as nylon, for its wear resistance. The frame includes a mounting mechanism for securing the frame, for example, to the foundation using expansion bolts or pre-embedded welded components. A guide rod 30 movably engages the shaft guide frame 20, limiting the position of the guide rod 30 and enhancing the stability of the gate guide rod during its upward and downward movement.

[0037] In some examples, the electro-hydraulic quick-closing gate device further includes a stroke control system for detecting the opening of the gate 40 or the position of the piston of the hydraulic cylinder 11. The electrical control box 17 includes a display for displaying the opening of the gate 40 or the position of the piston of the hydraulic cylinder 11, thereby facilitating the operator's understanding of the opening of the gate 40. The above arrangement facilitates understanding and adjustment of the stroke of the gate 40, detects the gate opening when the gate 40 is open for a long period of time, and generates a signal to restart the oil pump to open the gate 40 to the set position when the gate 40 slides down due to gravity and reaches a set amount of sliding.

[0038] In some examples, the accumulator 18 can also be connected to the first end of the hydraulic cylinder 11. The electro-hydraulic actuator 10 further includes a third reversing mechanism configured to switch the accumulator 18 between connecting to the first end of the hydraulic cylinder 11 and connecting to the second end of the hydraulic cylinder 11. When the accumulator 18 connects to the first end of the hydraulic cylinder 11 and releases hydraulic pressure, the gate can be quickly opened.

[0039] In some examples, the first end of the hydraulic cylinder 11 and the second end of the hydraulic cylinder 11 are respectively connected to the hydraulic oil tank 16 through valves such as an electrically controlled valve or a pressure regulating valve. When one of the first end of the hydraulic cylinder 11 and the second end of the hydraulic cylinder 11 is connected to the power mechanism to inject oil, the other end can be connected to the hydraulic oil tank 16 to facilitate the return of oil.

[0040] In the above description, the communication between the components can be achieved through pipelines, and the pipelines can be provided with valves that control the opening and closing of the pipelines by electricity or pressure.

[0041] Finally, it should be emphasized that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An electro-hydraulic quick closing gate device, characterized in that It includes an electro-hydraulic actuator, a guide rod and a gate connected in sequence; the electro-hydraulic actuator includes a hydraulic cylinder, a hydraulic oil tank, an electric control box, an energy accumulator, a power mechanism, a first reversing mechanism and a fixed bracket; The piston rod of the hydraulic cylinder extends from the first end of the hydraulic cylinder and is connected to the guide rod. The first end of the power mechanism is connected to the hydraulic oil tank. The second end of the power mechanism can be connected to the first end of the hydraulic cylinder and the second end of the hydraulic cylinder. The accumulator can be connected to the second end of the hydraulic cylinder. The first reversing mechanism is configured to switch the second end of the hydraulic cylinder between being connected to the second end of the power mechanism and being connected to the accumulator. The power mechanism and the first reversing mechanism are respectively connected to the electric control box. The hydraulic cylinder is arranged in the middle of the fixed bracket, the hydraulic oil tank and the power mechanism are arranged at the first side end of the fixed bracket, and the energy accumulator is arranged at the second side end of the fixed bracket.

2. The electro-hydraulic quick closing gate device according to claim 1, characterized in that The power mechanism includes an oil pump motor, and the first reversing mechanism includes a solenoid valve. The solenoid valve is configured to connect the second end of the hydraulic cylinder and the energy accumulator when power is off.

3. An electro-hydraulic quick closing gate device according to claim 1 or 2, characterized in that The power mechanism includes an oil pump motor and a manual pump, the first reversing mechanism includes a solenoid valve and a manual reversing valve, the oil pump motor and the manual pump are arranged in parallel, and the solenoid valve and the manual reversing valve are arranged in parallel.

4. An electro-hydraulic quick closing gate device according to claim 1 or 2, characterized in that The second end of the power mechanism can be connected to the energy storage device.

5. An electro-hydraulic quick closing gate device according to claim 1 or 2, characterized in that: The electro-hydraulic actuator further includes a second reversing mechanism configured to switch the second end of the power mechanism between being connected to the first end of the hydraulic cylinder and being connected to the second end of the hydraulic cylinder.

6. An electro-hydraulic quick closing gate device according to claim 1 or 2, characterized in that The first reversing mechanism is arranged at the first side end of the fixing bracket.

7. An electro-hydraulic quick closing gate device according to claim 1 or 2, characterized in that It also includes a shaft guide frame, which includes a frame and a sliding sleeve arranged on the frame. The frame has a mounting mechanism, and the guide rod is movably matched with the sliding sleeve.

8. An electro-hydraulic quick closing gate device according to claim 1 or 2, characterized in that It also includes a stroke control system, which is used to detect the opening of the gate or the position of the piston of the hydraulic cylinder; The electric control box includes a display, which is used to display the opening of the gate or the position of the piston of the hydraulic cylinder.

9. An electro-hydraulic quick closing gate device according to claim 1 or 2, characterized in that The energy accumulator can also be connected to the first end of the hydraulic cylinder. The electro-hydraulic actuator further includes a third reversing mechanism configured to switch the energy accumulator between being connected to the first end of the hydraulic cylinder and the second end of the hydraulic cylinder.

10. An electro-hydraulic quick closing gate device according to claim 1 or 2, characterized in that The first end of the hydraulic cylinder and the second end of the hydraulic cylinder are connected to the hydraulic oil tank through valves respectively.

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