Hydraulic control one-way valve special for speed regulator

Abstract

The hydraulic control one-way valve special for the speed regulator comprises an oil duct plate, an iron plug is rotationally installed on one side in the oil duct plate, a first piston is movably connected to the position, below the iron plug, in the oil duct plate, an oil injection cavity is formed in the position, below the first piston, in the oil duct plate, and the bottom end of the oil injection cavity extends out of the oil duct plate. Two second O-shaped sealing rings are arranged at the upper end in the oil injection cavity, a lining is arranged in the oil duct plate on one side of the first piston, a spring is arranged in the oil duct plate on one side, away from the first piston, of the lining, a second piston is arranged in the oil duct plate on the outer side of the spring, and cover plates are arranged on the outer walls of the two sides of the oil duct plate. And four studs are in threaded connection with the interior of the cover plate. According to the hydraulic control one-way valve, the whole hydraulic control one-way valve can be disassembled so as to improve the maintenance convenience of the hydraulic control one-way valve, the flow rate of oil can be easily adjusted, the purpose of easily manufacturing the hydraulic control one-way valve is achieved, and the manufacturing efficiency of the hydraulic control one-way valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulically controlled one-way valves, in particular to a hydraulically controlled one-way valve dedicated to a speed regulator. Background Art

[0002] The speed governor is an automatic regulating device that can automatically increase or decrease the fuel supply of the injection pump according to changes in the diesel engine load, so that the diesel engine can run at a stable speed. In order to regulate the fuel supply of the speed governor, a corresponding hydraulically controlled one-way valve is required.

[0003] Reference publication number CN207278280U discloses a hydraulically controlled one-way valve, which comprises a valve body and a first valve core assembly and a second valve core assembly disposed in the valve body, wherein the first valve core assembly comprises a movably disposed valve stem, a small valve core sleeved on the valve stem, a valve sleeve and a joint, a screw sleeve sleeved on the valve stem and threadedly connected to the valve stem, a movable large valve core sleeved on the screw sleeve and the valve stem, a valve core spring sleeved on the valve stem and sandwiched between the screw sleeve and the small valve core, and a valve stem spring sandwiched between the valve stem and the valve sleeve, wherein the joint, the valve sleeve and the valve body are all It is a threaded connection, the threaded sleeve is used to limit the large valve core in the axial direction, the valve sleeve is used to limit the valve stem in the axial direction, the valve sleeve is located between the large valve core and the joint, the valve core assembly of the hydraulically controlled one-way valve is an integrated structure, so that the system integration of the entire hydraulically controlled one-way valve is high, which is convenient for the installation and subsequent maintenance of the hydraulically controlled one-way valve, and the hydraulically controlled one-way valve can be repaired directly by replacing the valve core assembly. According to the above, although the hydraulically controlled one-way valve can be well applied, it is usually not convenient to disassemble and maintain it as a whole, which often troubles people. Utility Model Content

[0004] The utility model aims to provide a hydraulically controlled one-way valve for a speed regulator, so as to solve the problem in the above background technology that the hydraulically controlled one-way valve can be well applied but is usually not convenient for overall disassembly and maintenance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a hydraulically controlled one-way valve dedicated to a speed regulator, comprising an oil channel plate, an iron plug is rotatably installed on one side of the oil channel plate, a first piston is movably connected to the inside of the oil channel plate below the iron plug, an oil filling chamber is arranged inside the oil channel plate below the first piston, the bottom end of the oil filling chamber extends to the outside of the oil channel plate, two second O-rings are arranged at the upper end of the oil filling chamber, a bushing is arranged inside the oil channel plate on one side of the first piston, a spring is arranged inside the oil channel plate on the side of the bushing away from the first piston, and a second piston is arranged inside the oil channel plate on the outside of the spring.

[0006] Preferably, cover plates are provided on the outer walls on both sides of the oil channel plate, and four studs are threadedly connected inside the cover plates, so that the cover plates can be installed on the outer walls of the oil channel plate through the provision of the studs.

[0007] Preferably, one end of the stud extends to the outside of the cover plate and is provided with a nut, and a gasket is provided on the inner wall of the cover plate outside the other end of the stud, so that the stud can be driven to rotate by the setting of the nut.

[0008] Preferably, second screws are installed inside the oil passage plates on both sides of the oil injection cavity, and the second screws are provided to fasten the front and rear sets of oil passage plates together.

[0009] Preferably, a plug is movably installed inside the oil channel plate above the spring, and one end of the plug extends to the outside of the oil channel plate. The opening and closing size of the internal channel at the upper end of the oil channel plate can be adjusted by setting the plug.

[0010] Preferably, a first screw is installed on one side of the bottom of the plug, and a first O-ring is provided on the outer wall of the oil channel plate outside the plug, so that the plug can be locked by the provision of the first screw.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the speed regulator dedicated hydraulically controlled one-way valve can not only be disassembled as a whole to improve the convenience of the hydraulically controlled one-way valve during maintenance, but also easily adjust the flow rate of the oil, and achieve the purpose of facilitating the manufacture of the hydraulically controlled one-way valve to improve the manufacturing efficiency of the hydraulically controlled one-way valve;

[0012] (1) The stud is screwed out to the outside of the cover plate by rotating the nut, and then the cover plate is detached from the outer wall of the oil channel plate, and the first piston, spring and other related components can be disassembled. Since the hydraulically controlled one-way valve can be disassembled as a whole, the convenience of maintaining the hydraulically controlled one-way valve is improved;

[0013] (2) The first piston is driven to move rightward by the iron plug, so that the first piston pushes the second piston to the right and the spring is in a contracted state. Then the rotary plug is rotated to slide to the right, so that the oil outlet at the top of the oil gallery plate is in an open and closed state. When the oil is injected from the bottom of the oil injection chamber, the oil can pass through the channel inside the oil gallery plate and be discharged from the oil outlet. Since the piston member is used to control the opening and closing size of the channel inside the oil gallery plate, the flow rate of the oil can be easily adjusted.

[0014] (3) The hydraulically controlled one-way valve is formed by combining the oil channel plate, the first piston, the spring and other related components, so that the overall structure of the hydraulically controlled one-way valve is relatively simple, thereby achieving the purpose of facilitating the manufacture of the hydraulically controlled one-way valve and improving the manufacturing efficiency of the hydraulically controlled one-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 2 It is a right side structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the enlarged structure of the stud of the utility model;

[0018] Figure 4 It is a schematic diagram of the side structure of the gasket of the utility model.

[0019] In the figure: 1. iron plug; 2. oil channel plate; 3. gasket; 4. cover plate; 5. stud; 6. nut; 7. first piston; 8. oil filling chamber; 9. plug; 10. first screw; 11. first O-ring; 12. second piston; 13. spring; 14. bushing; 15. second O-ring; 16. second screw. DETAILED DESCRIPTION

[0020] 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. 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.

[0021] See also Figure 1-4 The utility model provides an embodiment: a hydraulically controlled one-way valve for a speed regulator, comprising an oil channel plate 2, a cover plate 4 is provided on the outer walls of both sides of the oil channel plate 2, and four studs 5 are threadedly connected inside the cover plate 4;

[0022] When in use, the cover plate 4 is mounted on the outer wall of the oil gallery plate 2 by means of the studs 5;

[0023] One end of the stud 5 extends to the outside of the cover plate 4 and is provided with a nut 6, and a gasket 3 is provided on the inner wall of the cover plate 4 outside the other end of the stud 5;

[0024] When in use, the nut 6 is arranged so as to drive the stud 5 to rotate;

[0025] An iron plug 1 is rotatably mounted on one side of the oil gallery plate 2, a first piston 7 is movably connected to the oil gallery plate 2 below the iron plug 1, an oil injection cavity 8 is arranged inside the oil gallery plate 2 below the first piston 7, the bottom end of the oil injection cavity 8 extends to the outside of the oil gallery plate 2, and second screws 16 are installed inside the oil gallery plate 2 on both sides of the oil injection cavity 8;

[0026] When in use, the second screws 16 are provided to fasten and connect the front and rear sets of oil gallery plates 2;

[0027] Two second O-rings 15 are arranged at the upper end of the oil filling chamber 8, a bushing 14 is arranged inside the oil passage plate 2 on one side of the first piston 7, a spring 13 is arranged inside the oil passage plate 2 on the side of the bushing 14 away from the first piston 7, a plug 9 is movably installed inside the oil passage plate 2 above the spring 13, and one end of the plug 9 extends to the outside of the oil passage plate 2;

[0028] When in use, the size of the opening and closing of the internal channel at the upper end of the oil channel plate 2 can be adjusted by setting the cock 9;

[0029] A first screw 10 is installed on one side of the bottom of the plug 9, and a first O-ring 11 is provided on the outer wall of the oil passage plate 2 outside the plug 9;

[0030] When in use, the first screw 10 is arranged so as to lock the cock 9;

[0031] A second piston 12 is arranged inside the oil gallery plate 2 outside the spring 13 .

[0032] When the embodiment of the present application is in use, the first piston 7 is first driven to move to the right by the iron plug 1, so that the first piston 7 pushes the second piston 12 to the right and the spring 13 is in a contracted state, and then the rotary plug 9 is rotated to slide to the right, so that the oil outlet at the top of the oil gallery plate 2 is in an open and closed state. When the oil is injected from the bottom of the oil filling chamber 8, the oil can pass through the channel inside the oil gallery plate 2 and be discharged from the oil outlet. Then, a hydraulically controlled one-way valve is formed by combining the oil gallery plate 2, the first piston 7, the spring 13 and other related components, so that the overall structure of the hydraulically controlled one-way valve is relatively simple, so that the hydraulically controlled one-way valve can be easily manufactured and processed. Finally, the stud 5 is screwed out to the outside of the cover plate 4 by rotating the nut 6, and then the cover plate 4 is detached from the outer wall of the oil gallery plate 2, so that the first piston 7, the spring 13 and other related components can be disassembled to facilitate the inspection and maintenance of the hydraulically controlled one-way valve, thereby completing the use of the hydraulically controlled one-way valve.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. Special hydraulically controlled one-way valve for speed regulator, characterized by: The invention comprises an oil passage plate (2), an iron plug (1) is rotatably mounted on one side of the oil passage plate (2), a first piston (7) is movably connected to the oil passage plate (2) below the iron plug (1), an oil injection chamber (8) is arranged inside the oil passage plate (2) below the first piston (7), the bottom end of the oil injection chamber (8) extends to the outside of the oil passage plate (2), two second O-rings (15) are arranged at the upper end of the oil injection chamber (8), a bushing (14) is arranged inside the oil passage plate (2) on one side of the first piston (7), a spring (13) is arranged inside the oil passage plate (2) on the side of the bushing (14) away from the first piston (7), and a second piston (12) is arranged inside the oil passage plate (2) outside the spring (13).

2. The hydraulically controlled one-way valve for speed regulator according to claim 1 is characterized in that: Cover plates (4) are provided on the outer walls of both sides of the oil channel plate (2), and the interior of the cover plates (4) is threadedly connected with four studs (5).

3. The hydraulically controlled one-way valve for speed regulator according to claim 2 is characterized in that: One end of the stud (5) extends to the outside of the cover plate (4) and is provided with a nut (6), and a gasket (3) is provided on the inner wall of the cover plate (4) outside the other end of the stud (5).

4. The hydraulically controlled one-way valve for speed regulator according to claim 1 is characterized in that: Second screws (16) are installed inside the oil passage plates (2) on both sides of the oil injection cavity (8).

5. The hydraulically controlled one-way valve for speed regulator according to claim 1 is characterized in that: A plug (9) is movably installed inside the oil passage plate (2) above the spring (13), and one end of the plug (9) extends to the outside of the oil passage plate (2).

6. The hydraulically controlled one-way valve for speed regulator according to claim 5, characterized in that: A first screw (10) is installed on one side of the bottom of the plug (9), and a first O-ring (11) is arranged on the outer wall of the oil channel plate (2) outside the plug (9).

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