Combined manual multi-way synchronous control reversing valve

Abstract

The utility model discloses a combined manual multi-path synchronous control reversing valve which comprises a plurality of reversing valves which are connected. The handle assembly is installed on one side of the multiple connected reversing valves and used for synchronously controlling the multiple reversing valves, and the connecting shaft is used for connecting the reversing valves in series. Each reversing valve comprises a valve seat and a rotating shaft movably installed in the valve seat and connected with the connecting shaft, the handle assembly is connected with the rotating shafts, the connecting shafts are connected with the rotating shafts, the reversing valves are connected in series through the connecting shafts and the rotating shafts, and the handle assembly fixedly connected with the rotating shafts is arranged on one sides of the reversing valves. Therefore, when the multiple directional control valves are operated, the multiple directional control valves can be synchronously controlled to act only by operating a single handle, so that the flow direction of hydraulic oil on the multiple directional control valves is synchronously switched, and the oil outlet time difference of the hydraulic oil is avoided.

Description

Technical Field

[0001] The utility model relates to the field of reversing valves, and particularly relates to a combined manual multi-way synchronous control reversing valve. Background Art

[0002] The manual reversing valve controls the flow direction of hydraulic oil in the pipeline by switching the position of the reversing valve handle, so as to meet the action requirements of the hydraulic cylinder for jacking out, holding, and retracting. For common hydraulic equipment with multiple oil circuits, multiple reversing valves are combined in parallel or in series. Generally, the series connection method is used more. The multi-way reversing valves are connected in series in a row, and one handle rod controls one reversing valve. By continuously operating the handle rods on multiple reversing valves, the reversing control of each reversing valve is carried out. The disadvantage of this method is that the handle rod needs to be continuously operated during the reversing process, and the reversing valves cannot reverse synchronously. Moreover, continuous reversing results in a time difference in the oil output of each circuit. Therefore, a combined manual multi-way synchronous control reversing valve is proposed. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a solution that can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a combined manual multi-way synchronous control reversing valve, including a number of connected reversing valves; characterized in that: it further includes a handle assembly installed on one side of the number of connected reversing valves for synchronously controlling the number of reversing valves and a connecting shaft for connecting the reversing valves in series; the reversing valve includes a valve seat and a rotating shaft movably installed in the valve seat and connected to the connecting shaft, and the handle assembly is connected to the rotating shaft.

[0005] Preferably, one end of the connecting shaft is provided with a connecting groove one, and the other end is provided with a connecting block one. One end of the rotating shaft is provided with a connecting block two adapted to the connecting groove one, and the other end is provided with a connecting groove two adapted to the connecting block one.

[0006] Preferably, the connecting groove one and the connecting block two, and the connecting block one and the connecting groove two can be set to be multi-faceted.

[0007] Preferably, the handle assembly includes a handle seat fixedly connected to one end of the rotating shaft and a handle rod installed on the handle seat.

[0008] Preferably, the reversing valve further includes a valve cover installed on the valve seat and a distribution disk installed on the rotating shaft and located between the valve seat and the valve cover; the handle assembly further includes a positioning plate installed on the handle seat and located between the handle seat and the valve cover. The valve cover is provided with positioning holes, and elastic pins and steel balls are installed in the positioning holes. A spring is also installed in the positioning holes with steel balls. The positioning plate is provided with limiting grooves corresponding to the elastic pins and a number of positioning holes corresponding to the steel balls.

[0009] Preferably, an oil inlet, an oil outlet and an oil return port are provided on the valve seat.

[0010] Preferably, a quick connector that can be connected to a hydraulic device is installed on the oil outlet.

[0011] Preferably, a throttle valve for controlling the flow rate is also installed on the oil path where the quick connector is connected to the valve seat.

[0012] Preferably, a one-way valve, a pressure gauge and a high-pressure regulating valve for adjusting the pressure are also installed on the oil path where the valve seat is connected to the oil inlet.

[0013] The utility model has the following beneficial effects:

[0014] By setting the connection between the connecting shaft and the rotating shaft, several reversing valves are connected in series through the connecting shaft and the rotating shaft, and a handle assembly fixedly connected to the rotating shaft is arranged on one side of the several reversing valves. Therefore, when operating the multi-way reversing valve, only one handle needs to be operated to synchronously control the actions of several reversing valves, thereby synchronously switching the flow direction of the hydraulic oil on the multi-way reversing valve, so that there is no time difference in the oil outlet of the hydraulic oil.

[0015] By setting positioning holes on the positioning plate, and an elastic pin, a steel ball and a spring are installed in the positioning holes. Each time the handle rod on the reversing valve is operated, the elastic pin is inserted into the limiting groove, and at the same time the steel ball slides into the positioning hole to limit the rotating position of the oil distribution disc, so as to ensure that the oil holes on the oil distribution disc are aligned with the corresponding oil paths; through the setting of the elastic pin and the limiting groove, the rotating stroke of the oil distribution disc is limited, avoiding overtravel when the handle assembly drives the oil distribution disc to rotate, resulting in the misalignment of the oil outlet on the oil distribution disc and the oil path, affecting the oil outlet.

[0016] By setting a quick connector at the oil outlet, it is convenient for the quick docking of the reversing valve and the hydraulic device.

[0017] By setting a throttle valve, it is convenient to adjust the flow rate of the hydraulic oil synchronously injected into the hydraulic device, ensuring the stable operation of the hydraulic device. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the working principle of the utility model;

[0019] Figure 2 is an overall schematic diagram of the utility model;

[0020] Figure 3 is a schematic cross-sectional view of the utility model;

[0021] Figure 4 is a schematic diagram of the partial cross-sectional structure of the utility model;

[0022] Figure 5It is a partial structural schematic diagram of the present utility model;

[0023] Figure 6 It is a partial structural schematic diagram of the present utility model.

[0024] Legend description: 1. Directional control valve; 2. Handle assembly; 3. Handle rod; 4. Handle seat; 5. Connecting shaft; 6. Rotating shaft; 7. Valve seat; 8. Valve cover; 9. First connecting groove; 10. First connecting block; 11. Second connecting groove; 12. Second connecting block; 13. Oil distribution disc; 14. Positioning plate; 15. Positioning hole; 16. Elastic pin; 17. Steel ball; 18. Spring; 19. Limit groove; 20. Oil inlet; 21. Oil outlet; 22. Oil return port; 23. Quick connector; 24. Throttle valve; 25. Check valve; 26. Pressure gauge; 27. High-pressure regulating valve. Specific embodiments

[0025] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] As Figure 1-6 shown, a combined manual multi-way synchronous control directional control valve includes a number of connected directional control valves 1; characterized in that: it further includes a handle assembly 2 installed on one side of a number of connected directional control valves 1 for synchronously controlling the number of directional control valves 1 and a connecting shaft 5 for connecting the directional control valves 1 in series; the directional control valve 1 includes a valve seat 7 and a rotating shaft 6 movably installed in the valve seat 7 and connected to the connecting shaft 5, and the handle assembly 2 is connected to the rotating shaft 6;

[0027] By setting the connection between the connecting shaft 5 and the rotating shaft 6, a number of directional control valves 1 are connected in series through the connecting shaft 5 and the rotating shaft 6, and a handle assembly 2 fixedly connected to the rotating shaft 6 is arranged on one side of the number of directional control valves 1, so that when operating the multi-way directional control valve 1, only a single handle rod 3 needs to be operated to synchronously control the number of directional control valves 1 to act, thereby synchronously switching the flow direction of the hydraulic oil on the multi-way directional control valve 1 and making the oil outlet of the hydraulic oil have no time difference.

[0028] In one embodiment, one end of the connecting shaft 5 is provided with a first connecting groove 9, and the other end is provided with a first connecting block 10. One end of the rotating shaft 6 is provided with a second connecting block 12 adapted to the first connecting groove 9, and the other end is provided with a second connecting groove 11 adapted to the first connecting block 10. The first connecting groove 9 and the second connecting block 12 and the first connecting block 10 and the second connecting groove 11 can be set to be polyhedral. By setting the first connecting groove 9 and the second connecting block 12 and the first connecting block 10 and the second connecting groove 11 to be polyhedral, it is convenient for the connection between the connecting shaft 5 and the rotating shaft 6 and enables the rotating shaft 6 to synchronously drive the connecting shaft 5 to rotate when rotating.

[0029] In one embodiment, the handle assembly 2 includes a handle base 4 fixedly connected to one end of a rotating shaft 6 and a handle rod 3 mounted on the handle base 4.

[0030] In one embodiment, the reversing valve 1 further includes a valve cover 8 mounted on the valve seat 7 and an oil distribution disc 13 mounted on the rotating shaft 6 and located between the valve seat 7 and the valve cover 8; the handle assembly 2 further includes a positioning plate 14 mounted on the handle base 4 and located between the handle base 4 and the valve cover 8. The valve cover 8 is provided with a positioning hole 15, in which an elastic pin 16 and a steel ball 17 are installed. A spring 18 is also installed in the positioning hole 15 where the steel ball 17 is installed; the positioning plate 14 is provided with a limit groove 19 corresponding to the elastic pin 16 and a plurality of positioning holes 15 corresponding to the steel ball 17. By providing the positioning holes 15 on the positioning plate 14, and the elastic pin 16, the steel ball 17 and the spring 18 are installed in the positioning holes 15, each time the handle rod 3 on the reversing valve 1 is operated, the elastic pin 16 is inserted into the limit groove 19, and at the same time the steel ball 17 slides into the positioning hole 15 to limit the rotation position of the oil distribution disc 13, so as to ensure that the oil holes on the oil distribution disc 13 are aligned with the corresponding oil circuits. Through the setting of the elastic pin 16 and the limit groove 19, the rotation stroke of the oil distribution disc 13 is limited, avoiding overtravel when the handle assembly 2 drives the oil distribution disc 13 to rotate, resulting in the oil outlet on the oil distribution disc 13 not being aligned with the oil circuit and affecting oil output.

[0031] In one embodiment, the valve seat 7 is provided with an oil inlet 20, an oil outlet 21 and an oil return port 22.

[0032] In one embodiment, a quick connector 23 that can be connected to a hydraulic device is installed on the oil outlet 21. By providing the quick connector 23 on the oil outlet, it is convenient for the quick docking of the reversing valve 1 and the hydraulic device.

[0033] In one embodiment, a throttle valve 24 for controlling the flow rate is further installed on the oil circuit where the quick connector 23 is connected to the valve seat 7. By providing the throttle valve 24, it is used to adjust the flow rate of the hydraulic oil synchronously injected into the hydraulic device to ensure the stable operation of the hydraulic device.

[0034] In one embodiment, a check valve 25, a pressure gauge 26 and a high-pressure regulating valve 27 for adjusting the pressure are further installed on the oil circuit where the valve seat 7 is connected to the oil inlet 20. By providing the pressure gauge 26, it is used to observe the pressure value of the hydraulic oil in the oil circuit in real time. By providing the high-pressure regulating valve 27, the hydraulic oil in the oil circuit is regulated before flowing into the hydraulic device to protect the stable operation of the hydraulic device.

[0035] The synchronous commutation process of several reversing valves in the present utility model: Several reversing valves 1 are connected in series through the connection of the connecting shaft 5 and the rotating shaft 6. During commutation, the operator rotates the handle rod 3 on one side, and the handle rod 3 drives the handle seat 4 to rotate. The handle seat 4 drives the rotating shaft 6 fixedly connected thereto to rotate. The rotating shaft 6 then drives the rotating shafts 6 on several reversing valves 1 to act synchronously through the connecting shaft 5. While rotating, the rotating shaft 6 drives the oil distribution disc 13 to rotate, so that the oil holes on the oil distribution disc 13 are communicated with the corresponding oil circuits, thereby driving several reversing valves 1 to perform oil circuit switching and commutation work synchronously.

[0036] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A combined manual multi-way synchronous control reversing valve, comprising a plurality of connected reversing valves (1); characterized in that: It also includes a handle assembly (2) installed on one side of a plurality of connected reversing valves (1) for synchronously controlling the plurality of reversing valves (1) and a connecting shaft (5) for connecting the reversing valves (1) in series; the reversing valve (1) includes a valve seat (7) and a rotating shaft (6) movably installed in the valve seat (7) and connected to the connecting shaft (5); the handle assembly (2) is connected to the rotating shaft (6).

2. A combined manual multi-way synchronous control reversing valve according to claim 1, characterized in that: The connecting shaft (5) is provided with a connecting groove (9) at one end and a connecting block (10) at the other end; the rotating shaft (6) is provided with a connecting block (12) adapted to the connecting groove (9) at one end and a connecting groove (11) adapted to the connecting block (10) at the other end.

3. A combined manual multi-way synchronous control reversing valve according to claim 2, characterized in that: The connecting groove 1 (9) and the connecting block 2 (12) as well as the connecting block 1 (10) and the connecting groove 2 (11) can be configured into a polyhedral shape.

4. A combined manual multi-way synchronous control reversing valve according to claim 1, characterized in that: The handle assembly (2) comprises a handle seat (4) fixedly connected to one end of a rotating shaft (6) and a handle rod (3) mounted on the handle seat (4).

5. The combined manual multi-way synchronous control reversing valve according to claim 1, characterized in that: The reversing valve (1) further comprises a valve cover (8) mounted on the valve seat (7), and an oil distribution plate (13) mounted on the rotating shaft (6) and located between the valve seat (7) and the valve cover (8); the handle assembly (2) further comprises a positioning plate (14) mounted on the handle seat (4) and located between the handle seat (4) and the valve cover (8); the valve cover (8) is provided with a positioning hole (15), the positioning hole (15) is provided with an elastic pin (16) and a steel ball (17), and the positioning hole (15) provided with the steel ball (17) is also provided with a spring (18); the positioning plate (14) is provided with a limiting groove (19) corresponding to the elastic pin (16) and a plurality of positioning holes (15) corresponding to the steel ball (17).

6. A combined manual multi-way synchronous control reversing valve according to claim 1, characterized in that: The valve seat (7) is provided with an oil inlet (20), an oil outlet (21) and an oil return port (22).

7. A combined manual multi-way synchronous control reversing valve according to claim 6, characterized in that: The oil outlet (21) is provided with a quick connector (23) that can be connected to a hydraulic device.

8. A combined manual multi-way synchronous control reversing valve according to claim 7, characterized in that: The oil circuit connecting the quick connector (23) and the valve seat (7) is also provided with a throttle valve (24) capable of controlling the flow rate.

9. A combined manual multi-way synchronous control reversing valve according to claim 6, characterized in that: The oil circuit connecting the valve seat (7) and the oil inlet (20) is also equipped with a one-way valve (25), a pressure gauge (26) and a high-pressure regulating valve (27) for regulating the pressure.

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