Hydraulic oil tank with valve switch anti-misoperation device

Abstract

The hydraulic oil tank comprises a tank body, a handle and an indicator board, a valve body is installed on the lower surface of the tank body, a valve rod is installed on the valve body, a gear is installed on the surface of the valve rod, a limiting column is connected to the surface of the handle in an inserted mode, one end of the limiting column is connected with the valve rod, and a spring is connected to the surface of the limiting column in a sleeved mode. A gear ring matched with the gear is installed on the inner wall of the handle, the indicator plate is installed on the surface of the valve body, the valve rod penetrates through the indicator plate, two inserting grooves are formed in the indicator plate, a positioning rod is arranged on the surface of the handle, the handle is moved to drive the positioning rod to be separated from the inserting grooves, and at the moment, the gear ring in the handle is meshed with the gear. When the handle is screwed, the gear and the valve rod can be controlled to rotate, the valve rod drives the valve body to switch the opening state and the closing state, the indicating head on the handle is aligned with the character marks of the indicating plate, the opening and closing state of the valve body can be directly seen, the handle cannot rotate when the handle is not moved, and misoperation can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil tank switches, in particular to a hydraulic oil tank with a valve switch misoperation prevention device. Background Art

[0002] As an important part of mechanical equipment, the hydraulic system mainly includes hydraulic oil tanks, main pumps, multi-way valves, various pipelines, and cylinders, motors and other components that perform various actions. Normally, when the hydraulic system of mechanical equipment fails, it is necessary to close the oil tank switch on the oil pipeline connected to the hydraulic oil tank in the hydraulic system to prevent hydraulic oil leakage during maintenance. However, the following disadvantages still exist in actual use: Most of the valves currently used on hydraulic oil tanks are ball valves, and the opening and closing of ball valves requires little force. When the operator opens and closes the ball valve, he can only judge whether the ball valve is fully open or closed by feel. If the ball valve is not fully open or closed, the problem may not be discovered in time by feel, affecting the normal operation of the mechanical equipment. Utility Model Content

[0003] The utility model aims to provide a hydraulic oil tank with a valve switch anti-misoperation device to solve the problems raised in the above background technology.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a hydraulic oil tank with a valve switch misoperation prevention device, comprising a box body, a valve body is installed on the lower surface of the box body, a valve stem is installed on the valve body, and a gear is installed on the surface of the valve stem, and the valve body is used to control whether the hydraulic oil in the tank flows out;

[0005] A handle, a limit column is inserted into the surface of the handle, and one end of the limit column is connected to the valve stem, a spring is sleeved on the surface of the limit column, and the spring supports the limit column and the handle, and a gear ring matching the gear is installed on the inner wall of the handle. The sliding of the handle can drive the gear ring to mesh with the gear, and the handle can be used to control the rotation of the valve stem with less effort;

[0006] An indicator plate is mounted on the surface of the valve body and the valve stem passes through the indicator plate. Two slots are arranged on the indicator plate. A positioning rod is arranged on the surface of the handle, and the size of the positioning rod corresponds to the slot. Whether the handle is open or closed is judged by the indicator plate, thereby judging whether the valve body is open or closed.

[0007] Furthermore, an assembly seat is fixedly connected to the lower part of the box surface, and the surface of the assembly seat is provided with a plurality of assembly holes. The box can be fixed by using bolts in conjunction with the assembly seat, and the assembly and disassembly of the box is very convenient.

[0008] Furthermore, a protrusion is provided on the surface of the valve stem, a push switch is installed on the surface of the indicator plate, and the position of the push switch corresponds to the protrusion. An indicator light is installed on the surface of the indicator plate, and the indicator light is electrically connected to the push switch. The valve stem rotates and triggers the push switch through the protrusion. The push switch controls the indicator light to show whether the valve body is in a closed or open state, and the indication is clearer.

[0009] Furthermore, the end of the limiting column has a threaded head, and the end face of the valve stem has a screw hole, and the threaded head is screwed to the screw hole to ensure that the limiting column can block the spring, keep the spring out of the handle, and prevent the handle from rotating freely.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) Move the handle to separate the positioning rod from the slot. At this time, the toothed ring in the handle meshes with the gear. When the handle is turned, the gear and the valve stem can be controlled to rotate. The valve stem drives the valve body to switch between the open and closed states. The indicator head on the handle is aligned with the text mark on the indicator plate, and the switch state of the valve body can be directly viewed. If the handle is not moved, the handle cannot be rotated, which can avoid misoperation.

[0012] (2) The rotation of the valve stem drives the protrusion to trigger the push switch, which controls the color of the indicator light, making it easy to directly judge the switch status of the valve body through the indicator light, ensuring that the switch status of the valve body can be checked even when the indicator plate is blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the connection between the box body and the valve body of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the connection between the valve body and the indicator plate of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model with the gear and the gear ring separated;

[0016] Figure 4 It is a structural schematic diagram of the connection between the indicator plate and the slot of the utility model.

[0017] In the figure: 1. Box body; 2. Inspection cover; 3. Breathing valve; 4. Liquid level gauge; 5. Assembly seat; 6. Oil inlet interface; 7. Valve body; 8. Handle; 9. Indicator plate; 10. Positioning rod; 11. Valve stem; 12. Bump; 13. Indicator light; 14. Push switch; 15. Limit column; 16. Spring; 17. Slot; 18. Gear; 19. Gear ring; 20. Indicator head; 21. Threaded head. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example:

[0020] See also Figure 1-4 The utility model provides a technical solution: a hydraulic oil tank with a valve switch anti-misoperation device, comprising a box body 1, the box body 1 contains hydraulic oil, a valve body 7 is installed on the lower surface of the box body 1, a valve stem 11 is installed on the valve body 7, and a gear 18 is installed on the surface of the valve stem 11, the gear 18 rotates synchronously with the valve stem 11, and the valve body 7 controls the opening and closing of the valve body 7;

[0021] A handle 8, a limit column 15 is inserted on the surface of the handle 8, and one end of the limit column 15 is connected to the valve stem 11, a spring 16 is sleeved on the surface of the limit column 15, and the spring 16 supports the limit column 15 and the handle 8, and a toothed ring 19 matching the gear 18 is installed on the inner wall of the handle 8. When the handle 8 is turned, if the toothed ring 19 meshes with the gear 18, the opening and closing of the valve body 7 can be controlled by the handle 8;

[0022] An indicator plate 9 is installed on the surface of the valve body 7 and the valve stem 11 passes through the indicator plate 9. Two slots 17 are provided on the indicator plate 9. A positioning rod 10 is provided on the surface of the handle 8, and the size of the positioning rod 10 corresponds to the slot 17. When the spring 16 pushes the handle 8, the positioning rod 10 is inserted into the slot 17. At this time, the handle 8 cannot be turned, which can prevent the handle 8 from being turned accidentally.

[0023] In this embodiment, if Figure 1 As shown, the surface of the box body 1 is provided with an oil inlet interface 6 and a liquid level gauge 4. The oil inlet interface 6 is connected to the oil return pipe of the hydraulic system. The liquid level gauge 4 can check whether the hydraulic oil in the box body 1 is lacking to prevent the hydraulic system from running out of oil.

[0024] In this embodiment, if Figure 1 As shown, an inspection cover 2 and a breathing valve 3 are provided on the upper surface of the box body 1. The breathing valve 3 can maintain the air pressure balance of the box body 1 to ensure that oil can flow into and out of the box body 1 smoothly. The box body 1 can be cleaned by opening the inspection cover 2.

[0025] In this embodiment, if Figure 1 As shown, the lower part of the surface of the box body 1 is fixedly connected with an assembly seat 5, and the surface of the assembly seat 5 has a plurality of assembly holes. Bolts pass through the assembly holes and cooperate with nuts to fix the assembly seat 5, and the box body 1 is fixed through the assembly seat 5.

[0026] In this embodiment, if Figure 3 As shown, a protrusion 12 is provided on the surface of the valve stem 11, a push switch 14 is installed on the surface of the indicator plate 9, and the position of the push switch 14 corresponds to the protrusion 12. An indicator light 13 is installed on the surface of the indicator plate 9, and the indicator light 13 is electrically connected to the push switch 14. When the valve stem 11 and the protrusion 12 rotate, the protrusion 12 can squeeze the push switch 14, and the push switch 14 is powered by a mechanical device, so that the push switch 14 can control the color change of the indicator light 13, for example, red represents that the valve body 7 is closed, and green represents that the valve body 7 is open.

[0027] In this embodiment, if Figure 3 As shown, the handle 8 is provided with an indicator head 20 on its surface, and the indicator head 20 corresponds to the indicator plate 9. The indicator plate 9 can use words to indicate the opening and closing of the valve body 7, so that the state of the valve body 7 can be judged intuitively.

[0028] In this embodiment, if Figure 3 As shown, the end of the limiting column 15 has a threaded head 21, the end face of the valve stem 11 has a screw hole, the threaded head 21 is screwed into the screw hole, and the limiting column 15 is arranged in a T shape to prevent the spring 16 from falling.

[0029] Specifically, when in use, when changing the switching state of the valve body 7, the handle 8 is moved downward to drive the positioning rod 10 to separate from the slot 17, so as to prevent the slot 17 from restricting the rotation of the positioning rod 10. After the handle 8 is moved downward, the gear ring 19 is driven to engage with the gear 18. At this time, turning the handle 8 can drive the valve stem 11 to rotate through the gear 18 and the gear ring 19. The rotation of the valve stem 11 drives the protrusion 12 and the valve body 7 to rotate, so that the valve body 7 switches the switching state. The rotation of the protrusion 12 triggers the press switch 14. The press switch 14 controls the indicator light 13 to emit red or green light, which is convenient for judging the switching state of the valve body 7. After the handle 8 is turned, the spring 16 pushes the positioning rod 10 into the slot 17 through the handle 8, thereby restricting the rotation of the handle 8. Without moving the handle 8, the handle 8 cannot be rotated, thereby effectively preventing misoperation.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic oil tank with a valve switch anti-misoperation device, characterized in that: include: A box body (1), a valve body (7) is mounted on the lower surface of the box body (1), a valve stem (11) is mounted on the valve body (7), and a gear (18) is mounted on the surface of the valve stem (11); A handle (8), a limit column (15) is inserted into the surface of the handle (8), and one end of the limit column (15) is connected to the valve stem (11), a spring (16) is sleeved on the surface of the limit column (15), and the spring (16) supports the limit column (15) and the handle (8), and a gear ring (19) matching the gear (18) is installed on the inner wall of the handle (8); An indicator plate (9), the indicator plate (9) is mounted on the surface of the valve body (7) and the valve stem (11) passes through the indicator plate (9), the indicator plate (9) is provided with two slots (17), and a positioning rod (10) is provided on the surface of the handle (8), and the size of the positioning rod (10) corresponds to the slot (17).

2. A hydraulic oil tank with a valve switch misoperation prevention device according to claim 1, characterized in that: An oil inlet interface (6) and a liquid level meter (4) are provided on the surface of the box body (1).

3. A hydraulic oil tank with a valve switch misoperation prevention device according to claim 1, characterized in that: The upper surface of the box body (1) is provided with an inspection cover (2) and a breathing valve (3).

4. A hydraulic oil tank with a valve switch misoperation prevention device according to claim 1, characterized in that: The lower part of the surface of the box body (1) is fixedly connected with an assembly seat (5), and the surface of the assembly seat (5) is provided with a plurality of assembly holes.

5. The hydraulic oil tank with a valve switch misoperation prevention device according to claim 1, characterized in that: A protrusion (12) is provided on the surface of the valve stem (11), and a push switch (14) is installed on the surface of the indicator plate (9), and the position of the push switch (14) corresponds to the protrusion (12).

6. A hydraulic oil tank with a valve switch misoperation prevention device according to claim 5, characterized in that: An indicator light (13) is installed on the surface of the indicator plate (9), and the indicator light (13) is electrically connected to the push switch (14).

7. The hydraulic oil tank with a valve switch misoperation prevention device according to claim 1, characterized in that: The surface of the handle (8) is provided with an indicating head (20), and the indicating head (20) corresponds to the indicating plate (9).

8. The hydraulic oil tank with a valve switch misoperation prevention device according to claim 1, characterized in that: The end of the limiting column (15) is provided with a threaded head (21), the end surface of the valve stem (11) is provided with a screw hole, and the threaded head (21) is screwed to the screw hole.

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