Integrated switch valve

Abstract

The utility model relates to the technical field of hydraulic reversing valves, and discloses an integrated switch valve which comprises a switch valve body (1), and a main oil pipe (20) is arranged in the switch valve body (1). One end of the main oil pipe (20) is provided with a plug I (21), and the other end is an oil inlet (2); a plurality of oil outlets (3) are formed in the switch valve body (1), a plurality of piston holes (4) are formed in the switch valve body (1), each piston hole (4) is provided with an upper opening (5) and a lower opening (6), pistons (7) are installed in the piston holes (4), and the pistons (7) are matched with the respective oil outlets (3); the head of the piston (7) is connected with a square hole handle (9) through a tetragonal prism (8); a runner hole (10) is formed in the piston (7); the runner hole (10) is matched with an internal channel of the switch valve body (1); and each oil outlet (3) is provided with a plug II (11). The structure is simple, a hydraulic lubricating system does not need to be controlled by excessive ball valves, and the manufacturing cost of the switching valve is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic reversing valve, concretely is a kind of integrated switch valve. BACKGROUND

[0002] In hydraulic lubrication, there will be a large number of lubricating hydraulic points, concentrated in an area or a device, these lubricating hydraulic points are all shunted from the main oil pipe of main equipment, and are divided into innumerable branch pipes from the main oil pipe, and then connected to each lubricating hydraulic point through each branch pipe. Due to the need of control and management, each lubricating hydraulic point needs a valve to control its cut-off, and the common method is to install a ball valve in front of the lubricating hydraulic point, and close the valve when the lubricating hydraulic point needs to be overhauled.

[0003] If it is divided into 8 branch pipes, 8 ball valves are needed to realize this function. In the hydraulic lubrication system of factory roller mill, there are sometimes thousands of hydraulic lubrication points, and if they are configured in this way, the number of ball valves will be large, and if it is a high-pressure system, so many high-pressure ball valves will result in high cost. Therefore, a simple structure and low-cost integrated switch valve is needed to meet this situation.

[0004] The related reference CN222798662U discloses an integrated hydraulic reversing valve, the flow channel holes on the valve are in communication with the corresponding flow channel holes on the oil collecting block, and the oil collecting block is internally provided with a piston. However, the hydraulic reversing valve, the reversing pressure regulating valve and the safety valve are installed, the reversing pressure regulating valve is installed in the corresponding valve hole of the oil collecting block, the safety valve is installed in the corresponding valve hole of the oil collecting block, and the plate-type hydraulic reversing valve is fixedly installed on the front plane of the oil collecting block. The valve is relatively more, and the manufacturing cost of the switch valve of the factory roller mill hydraulic lubrication system is relatively high. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of integrated switch valve, and the technical problems to be solved by the utility model are to provide a kind of integrated switch valve with relatively low switch valve manufacturing cost.

[0006] In order to solve the above technical problems, the utility model provides an integrated switch valve, which comprises a switch valve body, and a main oil pipe is arranged in the switch valve body; one end of the main oil pipe is provided with a plug, and the other end is an oil inlet; a plurality of oil outlets are arranged on the switch valve body, and a plurality of cylindrical piston holes are arranged in the switch valve body; the piston hole has an upper opening and a lower opening; a cylindrical piston is installed in the piston hole; each piston is matched with the oil outlet; the piston is rotatably installed on the switch valve body; a square column is arranged on the head of the piston; a square hole handle is arranged on the square column; a flow channel hole is arranged on the piston; the flow channel hole is matched with the internal passage of the switch valve body; and each oil outlet is provided with a plug.

[0007] By adopting the technical scheme, the cylindrical piston and the piston hole are matched, the opening and closing of the branch corresponding to the channel are realized by rotating the simple square hole handle, the structure is simple, the hydraulic lubrication system does not need too many ball valve controls, and the manufacturing cost of the on-off valve is greatly reduced.

[0008] Preferably, internal threads are arranged in the upper opening and the lower opening, an upper plug is arranged in the upper opening, and a lower plug is arranged in the lower opening.

[0009] By adopting the technical scheme, each piston hole forms an independent sealed cavity through the upper plug and the lower plug, and independent flow control can be performed on a single oil port.

[0010] Preferably, the piston is a stepped shaft, including a piston body at the bottom, a stepped column at the middle, and a square column at the top; the square column is matched with the square hole of the square hole handle.

[0011] By adopting the technical scheme, the piston is matched with the square hole of the square hole handle, which is convenient for being sleeved and rotated by the square hole handle or being rotated by a wrench or the like on site.

[0012] Preferably, the upper plug is provided with a through hole in the axial direction, a stepped column is arranged in the through hole, a groove is arranged on the inner wall of the upper plug, and an O-shaped sealing ring is arranged in the groove and in sealing connection with the stepped column.

[0013] By adopting the technical scheme, the upper plug presses the piston in the on-off valve body, the groove in the upper plug is used for arranging the O-shaped sealing ring, and the sealing of the piston and the on-off valve body is ensured.

[0014] Preferably, the square column of the piston head protrudes from the upper plug.

[0015] By adopting the technical scheme, the square column is matched with the square hole handle.

[0016] Preferably, mounting holes are arranged at four corners of the on-off valve body.

[0017] By adopting the technical scheme, the mounting holes are arranged, and the on-off valve is convenient to install.

[0018] Preferably, the plug one is a screw plug and is matched with a main oil pipe in a threaded manner.

[0019] By adopting the technical scheme, when the number of hydraulic points of the on-site lubrication system needs to be increased, the screw plug of the main oil pipe on the on-off valve body can be removed, and another integrated on-off valve can be connected, and the expansibility is high.

[0020] Preferably, the plug two is a screw plug and is matched with an oil outlet in a threaded manner.

[0021] By adopting the technical scheme, when a certain oil outlet of the on-off valve needs to be blocked, only the screw plug needs to be screwed, the sealing performance is enhanced by cooperating with raw material belts, and the operation is convenient.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] 1. The utility model discloses simple structure, and the material is convenient, adopts the cooperation of cylindrical piston and piston hole, and the opening and closing of branch corresponding to the passage are realized through the rotation of simple square hole handle, and the hydraulic lubrication system does not need too many ball valve controls, and the manufacturing cost of switch valve is greatly reduced.

[0024] 2. The utility model discloses that the inner thread is arranged in the upper mouth and lower mouth, and the upper screw plug is installed in the upper mouth, and the lower screw plug is installed in the lower mouth. Each piston hole forms independent sealed cavity through the upper and lower screw plugs, and independent flow control for single oil port is convenient.

[0025] 3. When the number of hydraulic points of the on-site lubrication system needs to be increased, the main oil pipe screw plug on the switch valve body can be removed, and an integrated switch valve can be connected, and the utility model has strong expansibility. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the structural drawing of the utility model;

[0027] Figure 2 It is the plan view of the utility model;

[0028] Figure 3 It is the sectional view of the utility model;

[0029] Figure 4 It is the switch valve body structure diagram of the utility model;

[0030] Figure 5 It is the plan view of the switch valve body of the utility model;

[0031] Figure 6 It is the piston structure diagram of the utility model;

[0032] Figure 7 It is the upper screw plug structure diagram of the utility model.

[0033] Figure number: 1. Switch valve body, 2. Oil inlet, 3. Oil outlet, 4. Piston hole, 5. Upper mouth, 6. Lower mouth, 7. Piston, 8. Square column, 9. Square hole handle, 10. Flow channel hole, 11. Plug two, 12. Upper screw plug, 13. Lower screw plug, 14. Piston body, 15. Step column, 16. Through hole, 17. Groove, 18. O type sealing ring, 19. Mounting hole, 20. Main oil pipe, 21. Plug one, 22. Knurled screw, 23. Oil outlet joint. DETAILED DESCRIPTION

[0034] As Figure 1As shown, an eight-hole integrated switch valve can control eight lubricating hydraulic points, including a switch valve body 1, an oil inlet 2 on the switch valve body 1, and eight oil outlets 3. The switch valve body 1 has four mounting holes 19 for easy installation of the switch valve. The oil inlet 2 is provided with an oil inlet connector. The switch valve body 1 is provided with a main oil pipe 20. As shown Figure 4 、 5 The switch valve body 1 is connected to the oil inlet 2 through various channels. One end of the main oil pipe 20 is provided with a plug 21, and the other end is the oil inlet 2. The switch valve body 1 is provided with eight oil outlets 3. The switch valve body 1 is provided with eight piston holes 4, which are cylindrical. The piston holes 4 have an upper opening 5 and a lower opening 6. A cylindrical piston 7 is installed in each piston hole 4. Each piston 7 corresponds to an oil outlet 3. If an oil outlet 3 is not needed, for example, only seven oil outlets 3 are needed in the field, one of the oil outlets can be plugged with a plug. The piston 7 is rotatably installed in the switch valve body 1. The piston 7 is provided with a square column 8, and the square column 8 is provided with a square hole handle 9. The square hole handle 9 is fixed to the switch valve body 1 by a knurled screw 22. The square hole handle 9 is twisted off by hand, then the square hole of the square hole handle 9 is sleeved on the square column 8 on the upper part of the piston 7, and the piston 7 is rotated by 90 degrees to open the oil outlet corresponding to the piston 7. At this time, the lubricating oil enters from the oil inlet 2, passes through the flow channel hole 10 of the piston 7, and flows out from the corresponding oil outlet 3. When the oil passage needs to be closed, the piston 7 is rotated by 90 degrees again, and the flow channel hole of the piston 7 is disconnected with the switch valve body 1.

[0035] As shown in Figure 2 , the plug 21 is a screw plug and is screwed with the main oil pipe 20. When the number of hydraulic points of the field lubrication system needs to be increased, the main oil pipe screw plug on the switch valve body 1 can be removed to continue to connect an integrated switch valve, which has strong expansibility.

[0036] The plug 11 is a screw plug, the inner wall of the oil outlet 3 is provided with internal threads, and the plug 11 is screwed with the oil outlet 3. When the oil outlet 3 of the switch valve needs to be plugged, only the screw plug needs to be screwed, which is convenient to operate.

[0037] The piston hole 4 is processed into a cylindrical hole, and the upper opening 5 and the lower opening 6 are both processed into internal threads. The upper screw plug 12 is installed in the upper opening 5, and the lower screw plug 13 is installed in the lower opening 6. Each piston 7 is fixed on the switch valve body 1 by the upper and lower screw plugs, and the piston 7 can freely rotate in the switch valve body 1. The square column 8 at the head of the piston 7 protrudes through the upper screw plug 12, which is convenient for cooperation with the square hole handle 9. Each piston hole 4 forms an independent sealed cavity through the upper and lower screw plugs, which is convenient for independent flow control of a single oil outlet.

[0038] As shown in Figure 3As shown, a flow channel hole 10 is formed on the piston 7; the flow channel hole 10 mates with the internal channel of the switch valve body 1. Each oil outlet 3 is equipped with a plug 21. When the oil outlet 3 needs to be operated, the plug 21 is removed and the oil outlet connector 23 is installed, as shown. Figure 2 This application has a simple structure, using a cylindrical piston 7 and piston hole 4 for cooperation. The opening and closing of the corresponding branch of the channel is achieved by rotating a simple square hole handle 9. The hydraulic lubrication system does not require too many ball valves for control, which greatly reduces the manufacturing cost of the switching valve.

[0039] like Figure 6 As shown, piston 7 is a cylinder machined into a stepped shaft shape, including a piston body 14 at the bottom, a stepped column 15 in the middle, and a square column 8 at the top; the square column 8 mates with the square hole of the square hole handle 9. The piston 7 and the square hole handle 9 are achieved through the mating of the square column 8 and the square hole, facilitating rotation by slipping the square hole handle 9 over it, or by using a wrench or similar tool on-site. The piston body 14 of piston 7 has a flow channel hole 10. When the flow channel hole 10 communicates with the internal passage of the switch valve body 1, the oil circuit is open; when the flow channel hole 10 of piston 7 is rotated, the oil circuit is closed.

[0040] like Figure 7 As shown, the upper screw plug 12 has an axially oriented through hole 16, within which a stepped post 15 is installed. A groove 17 is formed on the inner wall of the upper screw plug 12, and an O-ring seal 18 is installed in the groove 17. The O-ring seal 18 and the stepped post 15 are connected in a sealing manner. The upper screw plug 12 presses the piston 7 into the switch valve body 1. The groove 17 inside the upper screw plug 12 is used to install the O-ring seal 18, ensuring a seal between the piston 7 and the switch valve body 1.

[0041] The internal structure of the switch valve body 1 uses a cylindrical piston 7 and a cylindrical piston bore 4 for mating. The machining precision of this bore-shaft fit is very high, allowing the switch valve to operate at high pressures, meeting the requirements of most engineering conditions. The opening and closing of the corresponding branch is achieved by rotating a simple square-hole handle 9; one switch valve requires one square-hole handle 9, reducing costs. The size of the switch valve body 1 determines the number of oil outlets 3, allowing for customization based on site requirements. For odd-numbered applications, such as a seven-port switch valve, simply plugging one of the oil outlets 3 on the switch valve body 1 is sufficient for easy on-site modifications. When the number of hydraulic points in the on-site lubrication system needs to be increased, the plug on the main oil pipe 20 on the switch valve body 1 can be removed, allowing for the connection of an integrated switch valve, providing strong scalability. It is suitable for various on-site conditions. The switch valve body of this application has a simple structure, and the materials can be customized according to user needs, making it highly adaptable.

[0042] It will be understood by those skilled in the art that the embodiments of the present application described above and shown in the drawings are merely illustrative and not restrictive of the present application. The object of the present application has been completely and effectively achieved. The function and structural principle of the present application have been demonstrated and explained in the embodiments, and the embodiments of the present application can have any deformation or modification without departing from the principle.

Claims

1. An integrated on-off valve comprising an on-off valve body (1), characterized in that: The switch valve body (1) is provided with a main oil pipe (20); one end of the main oil pipe (20) is provided with a plug (21), and the other end is an oil inlet (2); the switch valve body (1) is provided with a plurality of oil outlets (3), and the switch valve body (1) is provided with a plurality of cylindrical piston holes (4); the piston hole (4) has an upper opening (5) and a lower opening (6); the piston hole (4) is provided with a cylindrical piston (7); each piston (7) is matched with the respective oil outlet (3); the piston (7) is rotatably installed on the switch valve body (1); the piston (7) is provided with a square column (8); the square column (8) is provided with a square hole handle (9); the piston (7) is provided with a flow channel hole (10); the flow channel hole (10) is matched with the internal passage of the switch valve body (1); each oil outlet (3) is provided with a plug (11).

2. An integrated on-off valve according to claim 1, characterized in that: The upper opening (5) and the lower opening (6) are provided with internal threads; the upper opening (5) is provided with an upper screw plug (12); and the lower opening (6) is provided with a lower screw plug (13).

3. An integrated on-off valve according to claim 1, wherein: The piston (7) is a stepped shaft, including a piston body (14) at the bottom, a stepped column (15) at the middle, and a square column (8) at the top; the square column (8) is matched with the square hole of the square hole handle (9).

4. An integrated on-off valve according to claim 2, wherein: The upper screw plug (12) is provided with a through hole (16) in the axial direction; the through hole (16) is provided with a stepped column (15); the inner wall of the upper screw plug (12) is provided with a groove (17); the groove (17) is provided with an O-shaped sealing ring (18); and the O-shaped sealing ring (18) is in sealing connection with the stepped column (15).

5. An integrated on-off valve according to claim 1, wherein: The square column (8) of the piston (7) head protrudes from the upper screw plug (12).

6. An integrated on-off valve according to claim 1, wherein: The switch valve body (1) is provided with mounting holes (19) at four corners.

7. An integrated on-off valve according to claim 1, wherein: The plug (21) is a screw plug, which is matched with the main oil pipe (20) in a threaded manner.

8. An integrated on-off valve according to claim 1, wherein: The plug (11) is a screw plug, which is matched with the oil outlet (3) in a threaded manner.

Images