Gate valve opening and closing device powered by hydraulic pressure

Abstract

The utility model relates to the technical field of gate valve control, in particular to a gate valve opening and closing device powered by hydraulic pressure. Comprising a gate valve assembly and a limiting disc (6), and the gate valve assembly comprises a base (1), a mounting base (2), a gate valve transmission shaft (3), a coupler (4) and a hydraulic motor (5); the mounting seat (2) is of a hollow structure, is mounted between the base (1) and the hydraulic motor (5), and is provided with an accommodating space; the gate valve transmission shaft (3) is arranged on the base (1), the gate valve transmission shaft (3) and the coupler (4) are located in the containing space, and the gate valve transmission shaft (3) is used for driving a gate valve to rotate and is in linkage with the hydraulic motor (5) through the coupler (4); a limiting switch (7) is arranged on the limiting disc (6) and used for limiting the opening angle of the gate valve. According to the gate valve opening and closing device powered by hydraulic pressure, gate valve opening and closing operation is automatically controlled in the whole process, and the purposes of safety, high efficiency, time saving and labor saving are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valve control, in particular to a gate valve opening and closing device using hydraulic pressure as power. Background Art

[0002] Traditional gate valve opening and closing devices are mostly electric or manual, which are complicated to operate, difficult to adjust the opening and closing force, and easily affected by environmental factors. In recent years, with the continuous development of hydraulic technology, hydraulic opening and closing devices have gradually been widely used in the opening and closing control of various gate valves due to their simple structure, large opening and closing force, and convenient adjustment. However, the existing hydraulic opening and closing devices still have some shortcomings, such as insufficient flexibility in opening and closing force adjustment and unsatisfactory sealing performance. Utility Model Content

[0003] The utility model aims to overcome the defects of the prior art and proposes a gate valve opening and closing device using hydraulic power.

[0004] The utility model provides a gate valve opening and closing device using hydraulic power, comprising: a gate valve assembly and a limit plate 6, the gate valve assembly comprising: a base 1, a mounting seat 2, a gate valve transmission shaft 3, a coupling 4 and a hydraulic motor 5;

[0005] The mounting seat 2 is a hollow structure, mounted between the base 1 and the hydraulic motor 5, and has a receiving space;

[0006] The gate valve transmission shaft 3 is arranged on the base 1, and the gate valve transmission shaft 3 and the coupling 4 are located in the accommodation space. The gate valve transmission shaft 3 is used to drive the gate valve to rotate, and is linked with the hydraulic motor 5 through the coupling 4;

[0007] The limit switch 7 is arranged on the limit plate 6 to limit the opening angle of the gate valve.

[0008] Preferably, the coupling 4 is a claw coupling.

[0009] Preferably, the gate valve transmission shaft 3, coupling 4 and hydraulic motor 5 are coaxially connected.

[0010] Preferably, the coupling 4 is connected to the gate valve transmission shaft 3 and the hydraulic motor 5 via a key 8 .

[0011] Preferably, an elastic pad 9 is provided between the two shafts of the coupling 4 .

[0012] Preferably, the limit switch 7 is a micro switch, and the limit plate 6 is installed on the movement path of the gate valve.

[0013] The utility model adds a claw-shaped coupling to the gate valve transmission shaft, and processes and manufactures a base to form a reaction force for opening the gate, thereby realizing the operation of opening and closing the gate.

[0014] The utility model installs a hydraulic motor, connects the hydraulic output / return pipe of the control equipment to provide hydraulic power for the equipment; and adds a limit plate and a limit switch to control the opening angle of the gate valve to avoid equipment damage or safety accidents caused by excessive opening or closing.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] The utility model discloses a gate valve opening and closing device using hydraulic power, and the gate valve opening and closing operation is fully automatically controlled, so as to achieve the purpose of safety, high efficiency, time saving and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of the gate valve opening and closing device of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation of the limit plate and the limit switch of the utility model;

[0019] Figure 3 This is a schematic diagram of the opening and closing control of the gate valve of the utility model;

[0020] Reference numerals:

[0021] 1. Base, 2. Mounting seat, 3. Gate valve drive shaft, 4. Coupling, 5. Hydraulic motor, 6. Limit plate, 7. Limit switch, 8. Key, 9. Elastic pad, 10. Connecting bolt, 11. Stud bolt, 12. Quick-release nut, 13. Solenoid reversing valve, 14. Throttle valve, 15. Overflow valve. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is described in detail below in conjunction with the embodiments and drawings.

[0023] The utility model provides a gate valve opening and closing device using hydraulic power, such as Figure 1 As shown, it includes: a gate valve assembly and a limit plate 6, and the gate valve assembly includes: a base 1, a mounting seat 2, a gate valve transmission shaft 3, a coupling 4 and a hydraulic motor 5;

[0024] The mounting seat 2 is a hollow structure, mounted between the base 1 and the hydraulic motor 5, and has a receiving space;

[0025] The gate valve drive shaft 3 is arranged on the base 1, and the gate valve drive shaft 3 and the coupling 4 are located in the accommodating space. The gate valve drive shaft 3 is used to drive the gate valve to rotate, and is linked with the hydraulic motor 5 through the coupling 4. The gate valve drive shaft 3, the coupling 4 and the hydraulic motor 5 are coaxially connected, and the coupling 4 is connected to the gate valve drive shaft 3 and the hydraulic motor 5 through a key 8. The base 1 is fixed to one end of the mounting seat 2 by a connecting bolt 10, and a stud bolt 11 is arranged at the other end of the mounting seat 2. A stud bolt hole is arranged on the hydraulic motor 5, and the stud bolt 11 passes through the stud bolt hole and is fixed with a quick-release nut 12. Preferably, the coupling 4 is a claw-shaped coupling, and an elastic pad 9 is arranged between the two shafts of the coupling 4. The device also includes a throttle valve 14 connected to the hydraulic motor 5 through a 24V electromagnetic reversing valve 13 (three-position four-way), and the throttle valve 14 is used to adjust the speed. The throttle valve 14 is also connected to the overflow valve 15 for controlling the pressure, such as Figure 3 shown.

[0026] The limit switch 7 is arranged on the limit plate 6 to limit the opening angle of the gate valve. The limit switch 7 is a micro switch, and the limit plate 6 is installed on the movement path of the gate valve. Figure 2 shown. Specifically,

[0027] Gate valve drive shaft 3: used to control the opening and closing of the gate valve.

[0028] Claw type coupling: installed on the gate valve transmission shaft 3, tightly connected with the gate valve transmission shaft 3 through the claw structure to achieve power transmission.

[0029] Base 1: Process, manufacture and fix the claw coupling to form a reaction force for opening the gate.

[0030] Hydraulic motor 5: connected with the claw coupling, drives the claw coupling to rotate through hydraulic power, and then drives the gate valve transmission shaft to rotate, so as to realize the opening and closing of the gate valve.

[0031] Limit plate 6 and limit switch 7: used to control the opening angle of the gate valve, and send a signal to the control system through the limit switch when the predetermined angle is reached to ensure the safe opening and closing of the gate valve. The signal transmission process does not involve the improvement of the method.

[0032] Control system: includes control box, hydraulic control box and hydraulic power station. The control box is used to receive and process the user's operation instructions, the hydraulic control box is used to adjust the working state of the hydraulic motor according to the instructions issued by the control box, and the hydraulic power station provides power for the hydraulic motor. This process is a conventional system in this field and does not involve improvement of the method.

[0033] The utility model provides a use of a gate valve opening and closing device using hydraulic power, which is specifically as follows:

[0034] 1) Connect the gate switch and the on-site control box (220V power supply required) with a four-core control cable;

[0035] 2) Connect the hydraulic motor and the hydraulic control box;

[0036] 3) Connect the hydraulic control box and the hydraulic power station;

[0037] 4) After checking that the oil circuit and electrical circuit are connected correctly, start the hydraulic power station and operate the gate to open and close.

[0038] Any content not described in detail in the present invention can be based on the conventional technical knowledge in the field.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the embodiments, a person skilled in the art should understand that any modification or equivalent replacement of the technical solution of the utility model does not deviate from the spirit and scope of the technical solution of the utility model, and should be included in the scope of the claims of the utility model.

Claims

1. A gate valve opening and closing device powered by hydraulic pressure, characterized in that: include: A gate valve assembly and a limit plate (6), wherein the gate valve assembly comprises: a base (1), a mounting seat (2), a gate valve transmission shaft (3), a coupling (4) and a hydraulic motor (5); The mounting seat (2) is a hollow structure, mounted between the base (1) and the hydraulic motor (5), and has a receiving space; The gate valve drive shaft (3) is arranged on the base (1), the gate valve drive shaft (3) and the coupling (4) are located in the accommodating space, the gate valve drive shaft (3) is used to drive the gate valve to rotate, and is linked with the hydraulic motor (5) through the coupling (4); The limit plate (6) is provided with a limit switch (7) for limiting the opening angle of the gate valve.

2. The gate valve opening and closing device according to claim 1, characterized in that: The coupling (4) is a claw-shaped coupling.

3. The gate valve opening and closing device according to claim 1, characterized in that: The gate valve transmission shaft (3), the coupling (4) and the hydraulic motor (5) are coaxially connected.

4. The gate valve opening and closing device according to claim 1, characterized in that: The coupling (4) is connected to the gate valve transmission shaft (3) and the hydraulic motor (5) via a key (8).

5. The gate valve opening and closing device according to claim 1, characterized in that: An elastic pad (9) is arranged between the two shafts of the coupling (4).

6. The gate valve opening and closing device according to claim 1, characterized in that: The limit switch (7) is a micro switch, and the limit plate (6) is installed on the movement path of the gate valve.

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