CN215806478U

CN215806478U - Hydraulic control reversing valve with automatic adjusting function

Info

Publication number: CN215806478U
Application number: CN202122287546.8U
Authority: CN
Inventors: 陶国新
Original assignee: Jiangsu Tianda Hydraulic Machinery Manufacturing Co ltd
Current assignee: Jiangsu Tianda Hydraulic Machinery Manufacturing Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-02-11
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to the technical field of hydraulic control reversing valves, in particular to a hydraulic control reversing valve with an automatic adjusting function, which comprises an adjuster, a control button and a pressure gauge, wherein the control button is fixedly installed at the left end of the top of the adjuster, the pressure gauge is arranged at the right end of the control button, protective glass is embedded and installed at the top of the pressure gauge, a pointer is arranged inside the pressure gauge, and a pressure oil pipe is fixedly connected to the left side of the adjuster. The reversing valve overcomes the defects of the prior art, the fixing bolt, the lug and the groove are arranged, when the reversing valve is overhauled and maintained, the fixing bolt can be pulled out by screwing the fixing bolt, so that the upper valve body and the lower valve body are separated, the interior of the reversing valve is opened, and then the reversing valve is overhauled and maintained, the lug and the groove are arranged, so that the upper valve body and the lower valve body are combined more firmly, the sealing degree of the reversing valve is increased, the tightness effect is good, and the reversing valve is beneficial to practical use.

Description

Hydraulic control reversing valve with automatic adjusting function

Technical Field

The utility model relates to a hydraulic control reversing valve, in particular to a hydraulic control reversing valve with an automatic adjusting function.

Background

Pilot operated directional valves are directional valves operated by pilot fluid pressure. When the valve core moves rightwards for a certain distance, the pressure oil output by the hydraulic pump flows to the left cavity of the hydraulic cylinder, the oil flow in the right cavity of the hydraulic cylinder returns to the oil tank, and the piston of the hydraulic cylinder moves rightwards; conversely, if the spool moves a certain distance to the left, the flow is reversed and the piston moves to the left.

However, when the existing part of hydraulic control reversing valves are used, the pressure of the pressure oil cannot be controlled and adjusted when the pressure oil enters the reversing valves, so that the reversing valves are easy to cause reversing failure of the reversing valves due to overlarge pressure when reversing is performed, and the existing part of hydraulic control reversing valves are very troublesome when maintenance and overhaul are performed, inconvenient to detach and install, troublesome to operate, reduced in working efficiency and not beneficial to practical use.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the hydraulic control reversing valve with the automatic adjusting function, which overcomes the defects of the prior art, has simple structural design and effectively solves the problems that the pressure of pressure oil of the existing partial hydraulic control reversing valve cannot be controlled and adjusted when the pressure oil enters the reversing valve when the existing partial hydraulic control reversing valve is used, so that the reversing failure of the reversing valve is easily caused by overlarge pressure when the reversing valve is reversed, and the existing partial hydraulic control reversing valve is very troublesome in maintenance and repair, inconvenient to detach and install, troublesome to operate, low in working efficiency and not beneficial to practical use.

In order to solve the technical problems, the utility model provides the following technical scheme:

a hydraulic control reversing valve with an automatic adjusting function comprises an adjuster, a control button and a pressure gauge, wherein the control button is fixedly installed at the left end of the top of the adjuster, and the pressure gauge is arranged at the right end of the control button;

protective glass is installed at the top of manometer in an inlaying way, the inside of manometer is equipped with the pointer, the left side fixedly connected with pressure oil pipe of regulator, the right side of regulator is equipped with solid fixed ring, gu fixed ring's right side fixedly connected with connecting pipe, the right side of connecting pipe is equipped with the valve body.

As a preferred technical scheme of the utility model, the top of the upper valve body is provided with fixing bolts which are respectively arranged at four corners of the top of the upper valve body, and the left end and the right end of the bottom of the upper valve body are provided with lugs.

As a preferred technical scheme of the utility model, the lower end of the upper valve body is provided with a lower valve body, the left end and the right end of the lower valve body are both provided with grooves, and the grooves are mutually matched with the lugs.

As a preferred technical scheme of the present invention, a valve core is disposed inside the lower valve body, a movable piston is disposed at the left end inside the valve core, a fixed rod is fixedly connected to the right side of the movable piston, a first valve block is fixedly connected to one side of the fixed rod, and the first valve block is cylindrical.

As a preferable technical scheme of the present invention, a connecting rod is fixedly connected to the right side of the first valve block, a second valve block is fixedly connected to the right side of the connecting rod, the first valve block and the second valve block have the same size, a spring is arranged on the right side of the second valve block, and a fixing block is fixedly mounted on the right side of the spring.

As a preferable technical scheme of the utility model, liquid pipes are arranged at the bottom of the valve core and are distributed at equal intervals, and the lower ends of the liquid pipes are respectively connected with a first pipeline, a second pipeline and a third pipeline.

The embodiment of the utility model provides a hydraulic control reversing valve with an automatic adjusting function, which has the following beneficial effects: this kind of modified liquid accuse switching-over valve is when using, can control the pressure size of adjusting its pressure oil when pressure oil gets into the switching-over valve in to make the switching-over valve can not lead to the condition that the switching-over of switching-over valve is out of order to take place because of the pressure is too big easily when commutating, moreover, this kind of modified liquid accuse switching-over valve is very troublesome when carrying out the maintenance and overhaul, is not convenient for dismantle and the installation, and the operation is got up the trouble, has reduced work efficiency, is unfavorable for in-service use.

1. Through being provided with the regulator, control button and manometer, when in actual use, after getting into pressure oil pipe through pressure oil, then make the regulator transmit pressure oil to the case through the connecting pipe through pressing control button, make the pressure that removes the piston and receive pressure oil move after getting into the case through pressure oil thereby make first valve piece and second valve piece move, make the switching-over valve commutate liquid pipe when first valve piece and second valve piece remove, can adjust the pressure size that pressure oil received the removal piston through being equipped with the regulator, can observe the pressure that pressure oil brought through being equipped with the manometer, when pressure reachs a definite value, the regulator can adjust the pressure of pressure oil automatically, the switching-over effect of switching-over valve has been improved, be favorable to in-service use.

2. Through being provided with fixing bolt, lug and recess, when overhauing and maintaining the switching-over valve, can pull fixing bolt through being equipped with and moving fixing bolt through twisting for go up the valve body and part with lower valve body, thereby open the inside of switching-over valve, then overhaul and maintain it, through being equipped with lug and recess, more firm when making going up valve body and lower valve body merge has increased its sealed degree, closely effectual, be favorable to in-service use.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the lower valve body of the present invention;

fig. 3 is a schematic view of the internal structure of the valve cartridge of the present invention.

In the figure: 1. a regulator; 2. a control button; 3. a pressure gauge; 4. protective glass; 5. a pointer; 6. a pressure oil pipe; 7. a fixing ring; 8. a connecting pipe; 9. an upper valve body; 10. fixing the bolt; 11. a bump; 12. a lower valve body; 13. a screw hole; 14. a groove; 15. a valve core; 16. moving the piston; 17. fixing the rod; 18. a first valve block; 19. a connecting rod; 20. a second valve block; 21. a spring; 22. a fixed block; 23. a liquid pipe; 24. a first pipeline; 25. a second pipeline; 26. a third pipeline.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, a hydraulic control reversing valve with an automatic adjusting function comprises an adjuster 1, a control button 2 and a pressure gauge 3, wherein the control button 2 is fixedly installed at the left end of the top of the adjuster 1, and the pressure gauge 3 is arranged at the right end of the control button 2;

protective glass 4 is installed to the top of manometer 3 is inlayed, and manometer 3's inside is equipped with pointer 5, and regulator 1's left side fixedly connected with pressure oil pipe 6, and regulator 1's right side is equipped with solid fixed ring 7, and solid fixed ring 7's right side fixedly connected with connecting pipe 8, connecting pipe 8's right side are equipped with valve body 9.

Wherein, the top of the upper valve body 9 is provided with fixing bolts 10, the fixing bolts 10 are respectively arranged at four corners of the top of the upper valve body 9, and the left end and the right end of the bottom of the upper valve body 9 are provided with bumps 11;

in this embodiment, through this kind of design, when in actual use, set up the four corners at last valve body 9 top respectively through fixing bolt 10 for it is more firm when combining together with lower valve body 12 to go up valve body 9, has improved holistic stability.

Wherein, the lower end of the upper valve body 9 is provided with a lower valve body 12, the left and right ends of the lower valve body 12 are provided with grooves 14, and the grooves 14 are mutually matched with the lugs 11;

in this embodiment, by such a design, when the upper valve body 9 and the lower valve body 12 are combined with each other, the groove 14 and the bump 11 are engaged with each other, so that the overall sealing effect is improved, the tightness is stronger, and the practical use is facilitated.

A valve core 15 is arranged in the lower valve body 12, a movable piston 16 is arranged at the left end in the valve core 15, a fixed rod 17 is fixedly connected to the right side of the movable piston 16, a first valve block 18 is fixedly connected to the side of the fixed rod 17, and the first valve block 18 is cylindrical;

in this embodiment, with this design, in actual use, the movable piston 16 is moved by pressure of the pressure oil after the pressure oil enters the valve core 15, and the fixed rod 17 pushes the first valve block 18 to move after the movable piston 16 moves.

The right side of the first valve block 18 is fixedly connected with a connecting rod 19, the right side of the connecting rod 19 is fixedly connected with a second valve block 20, the first valve block 18 and the second valve block 20 are identical in size, the right side of the second valve block 20 is provided with a spring 21, and the right side of the spring 21 is fixedly provided with a fixed block 22;

in this embodiment, with such a design, after the first valve block 18 is moved by the pushing force of the movable piston 16, the second valve block 20 is moved at the same time, and the spring 21 is disposed on the right side of the second valve block 20, so that when the direction change valve needs to be changed, the pressure of the pressure oil is reduced by the control of the control button 2, and the spring rebounds to push the first valve block 18 and the second valve block 20 back to the original positions.

Liquid pipes 23 are arranged at the bottom of the valve core 15, the liquid pipes 23 are distributed at equal intervals, and the lower ends of the liquid pipes 23 are respectively connected with a first pipeline 24, a second pipeline 25 and a third pipeline 26;

in this embodiment, with this design, in practical use, after the liquid in the second pipeline 25 enters the valve core 15 through the liquid pipe 23, the liquid enters the first pipeline 24 or the third pipeline 26 through the movement of the first valve block 18 and the second valve block 20.

The working principle is as follows: the utility model relates to a hydraulic control reversing valve with an automatic adjusting function, when the device is used, pressure oil enters a regulator 1 through a pressure oil pipe 6, then the pressure oil enters a valve core 15 through a connecting pipe 8 by pressing a control button 2, after the pressure oil enters the valve core 15, a piston 16 is moved to push the pressure oil to move, so that a fixed rod 17 pushes a first valve block 18 to move, after the first valve block 18 moves, a second valve block 20 is simultaneously driven to move through a connecting rod 19, so that the second valve block 20 extrudes a spring 21, when the reversing valve needs to be reversed, the pressure of the pressure oil is reduced through the control of the control button 2, so that the spring 21 rebounds to push the first valve block 18 and the second valve block 20 back to the original positions, so that liquid in a second pipeline 25 enters the valve core 15 through a liquid pipe 23, the liquid enters the first pipeline 24 or the third pipeline 26 to change the direction by moving the first valve block 18 and the second valve block 20, the operation is convenient, when the pressure of the pressure oil in the valve core 15 is too large, the pressure brought by the pressure oil can be observed by arranging the pressure gauge 3, when the pressure reaches a certain value, the pressure of the pressure oil can be automatically adjusted by the regulator 1, the reversing effect of the reversing valve is improved, when the reversing valve is overhauled and maintained, the fixing bolt 10 can be pulled out by screwing the fixing bolt 10, so that the upper valve body 9 and the lower valve body 12 are separated, the inside of the reversing valve is opened, then the reversing valve is overhauled and maintained, the upper valve body 9 and the lower valve body 12 are combined more firmly by arranging the lug 11 and the groove 14, the sealing degree of the reversing valve is increased, the tightness effect is good, and the practical use is facilitated.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic control reversing valve with an automatic adjusting function comprises an adjuster, a control button and a pressure gauge, and is characterized in that the control button is fixedly installed at the left end of the top of the adjuster, and the pressure gauge is arranged at the right end of the control button;

2. The pilot operated directional control valve with the automatic adjusting function according to claim 1, wherein the top of the upper valve body is provided with fixing bolts, the fixing bolts are respectively arranged at four corners of the top of the upper valve body, and the left end and the right end of the bottom of the upper valve body are provided with protruding blocks.

3. The pilot operated directional control valve with the automatic adjusting function according to claim 2, wherein the lower end of the upper valve body is provided with a lower valve body, the left end and the right end of the lower valve body are provided with grooves, and the grooves are matched with the projections.

4. The pilot operated directional control valve with the automatic adjusting function according to claim 3, wherein a valve core is arranged inside the lower valve body, a movable piston is arranged at the left end inside the valve core, a fixed rod is fixedly connected to the right side of the movable piston, a first valve block is fixedly connected to the side of the fixed rod, and the first valve block is cylindrical.

5. The hydraulic control reversing valve with the automatic adjusting function according to claim 4, wherein a connecting rod is fixedly connected to the right side of the first valve block, a second valve block is fixedly connected to the right side of the connecting rod, the first valve block and the second valve block are identical in size, a spring is arranged on the right side of the second valve block, and a fixed block is fixedly mounted on the right side of the spring.

6. The pilot-controlled reversing valve with the automatic adjusting function according to claim 4, wherein liquid pipes are arranged at the bottom of the valve core, the liquid pipes are distributed at equal intervals, and the lower ends of the liquid pipes are respectively connected with the first pipeline, the second pipeline and the third pipeline.