Load-sensitive multi-way valve with protective structure

Abstract

The utility model discloses a load-sensitive multi-way valve with a protective structure, which comprises a load-sensitive multi-way valve body, a concave heat dissipation base is mounted on the lower portion of the load-sensitive multi-way valve body, a heat dissipation channel is arranged in the middle of the inside of the heat dissipation base, a window is arranged at the upper end of the inside of the heat dissipation channel, and a protective cover is arranged on the window. A plurality of radiating fins are horizontally fixed in the radiating channel at equal intervals, the upper portions of the radiating fins extend out of the window to be tightly attached to the lower portion of the load-sensitive multi-way valve body, and air holes are formed in the middles of the radiating fins. According to the load-sensitive multi-way valve with the protection structure, heat of the load-sensitive multi-way valve body is guided into the load-sensitive multi-way valve body through the heat dissipation fins, and then the heat on the surfaces of the heat dissipation fins is discharged out through the fans in the heat dissipation pipes, so that the heat dissipation performance of the bottom of the load-sensitive multi-way valve body is improved, the fault probability is reduced, and the service life of the load-sensitive multi-way valve is prolonged. And by arranging the liftable protective cover, the protection effect of the load-sensitive multi-way valve body can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of load-sensitive multi-way valves, and particularly relates to a load-sensitive multi-way valve with a protection structure. Background Technique

[0002] The overall multi-way valve adopts a unified modular design, which can provide reliable system solutions for the manufacturers of engineering vehicles. Users can combine the valve body according to functional requirements, which is simple and reliable. It can be either a simple load-sensitive manual multi-way valve or an electro-hydraulic proportional control valve with a non-saturation function that is independent of the load and the pump flow.

[0003] During the actual use of the current load-sensitive multi-way valve, it is extremely easy to cause poor heat dissipation at the bottom of the load-sensitive multi-way valve, so the probability of failure increases. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a load-sensitive multi-way valve with a protection structure to solve the problems raised in the above background technique.

[0005] A load-sensitive multi-way valve with a protection structure includes a load-sensitive multi-way valve body. A concave-shaped heat dissipation base is installed at the lower part of the load-sensitive multi-way valve body. A heat dissipation channel is arranged in the middle of the heat dissipation base. A window is opened at the upper end of the heat dissipation channel. Multiple heat dissipation fins are horizontally and equidistantly fixed inside the heat dissipation channel. The upper part of the heat dissipation fins extends out of the window and closely adheres to the lower part of the load-sensitive multi-way valve body. Air holes are arranged in the middle of the heat dissipation fins. A heat dissipation pipe is fixedly penetrated through the right end of the heat dissipation channel, and a fan is installed inside the heat dissipation pipe.

[0006] Further, a protective cover is slidably connected to the inner side of the heat dissipation base. Pipe orifices are opened at the front and rear sides of the lower end of the protective cover, and the pipes of the load-sensitive multi-way valve body are inserted into the pipe orifices.

[0007] Further, lifting plates are fixed at both the left and right ends of the protective cover. Lifting columns are fixed at the lower ends of the lifting plates. Slideways are opened at both the left and right sides of the upper end of the heat dissipation base, and the lower parts of the lifting columns extend into the slideways.

[0008] Further, a threaded groove is opened at the lower end of the lifting column. A threaded rod is threadedly connected inside the threaded groove. The lower part of the threaded rod is connected to a motor, and the motor is fixedly embedded at the bottom of the threaded groove.

[0009] Beneficial effects: For the load-sensitive multi-way valve with a protective structure, the heat of the load-sensitive multi-way valve body is introduced into the heat dissipation fins by the heat dissipation fins, and then the fan in the heat dissipation pipe discharges the heat on the surface of the heat dissipation fins to the outside, which improves the heat dissipation performance at the bottom of the load-sensitive multi-way valve body, thereby reducing the probability of failure. Then, by setting a liftable protective cover, the protective effect on the load-sensitive multi-way valve body can be achieved. Brief Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the whole utility model;

[0011] Figure 2 It is a schematic sectional view of the heat dissipation base of the utility model.

[0012] In the figure: 1 - load-sensitive multi-way valve body, 2 - heat dissipation base, 3 - lifting column, 4 - lifting plate, 5 - protective cover, 6 - pipe orifice, 7 - heat dissipation pipe, 8 - fan, 9 - heat dissipation channel, 10 - window, 11 - heat dissipation fin, 12 - air hole, 13 - slideway, 14 - thread groove, 15 - motor, 16 - threaded rod. Detailed Embodiment

[0013] Please refer to Figure 1 - Figure 2 , a load-sensitive multi-way valve with a protective structure, including a load-sensitive multi-way valve body 1. A concave-shaped heat dissipation base 2 is installed at the lower part of the load-sensitive multi-way valve body 1. A heat dissipation channel 9 is provided in the middle of the heat dissipation base 2. A window 10 is opened at the upper end of the heat dissipation channel 9. Multiple heat dissipation fins 11 are horizontally and equidistantly fixed inside the heat dissipation channel 9. The upper part of the heat dissipation fins 11 extends out of the window 10 and is in close contact with the lower part of the load-sensitive multi-way valve body 1. An air hole 12 is provided in the middle of the heat dissipation fins 11. A heat dissipation pipe 7 is fixedly penetrated through the right end of the heat dissipation channel 9. A fan 8 is installed inside the heat dissipation pipe 7. The heat of the load-sensitive multi-way valve body 1 is introduced into the heat dissipation fins 11 by the heat dissipation fins 11, and then the fan 8 in the heat dissipation pipe 7 discharges the air in the heat dissipation channel 9 to the outside. The air will flow through the air holes 12 on the surface of the heat dissipation fins 11, so that the heat on the surface of the heat dissipation fins 11 is discharged to the outside, which improves the heat dissipation performance at the bottom of the load-sensitive multi-way valve body 1, thereby reducing the probability of failure.

[0014] The protective cover 5 is slidably connected to the inner side of the heat dissipation base 2. Pipe orifices 6 are opened on both the front and rear sides of the lower end of the protective cover 5. The pipes of the load-sensitive multi-way valve body 1 are inserted into the pipe orifices 6. The protective cover 5 is lowered to cover the load-sensitive multi-way valve body 1, so that the pipes of the load-sensitive multi-way valve body 1 are inserted into the pipe orifices 6. In this way, by setting the liftable protective cover 5, the protective effect on the load-sensitive multi-way valve body 1 can be achieved.

[0015] Lifting plates 4 are fixed to both the left and right ends of the protective cover 5. Lifting columns 3 are fixed to the lower ends of the lifting plates 4. Slideways 13 are formed on both the left and right sides of the upper end of the heat dissipation base 2. The lower parts of the lifting columns 3 extend into the interiors of the slideways 13. Thread grooves 14 are formed at the lower ends of the lifting columns 3. Threaded rods 16 are threadedly connected to the interiors of the thread grooves 14. The lower parts of the threaded rods 16 are connected to motors 15. The motors 15 are fixedly embedded in the bottoms of the thread grooves 14. Through the motors 15, the motors 15 are externally connected to a power switch, so that the motors 15 can drive the threaded rods 16 to rotate forward or backward. As the threaded rods 16 are in threaded cooperation with the thread grooves 14, the lifting columns 3 are lifted or lowered along the slideways 13, thereby driving the lifting plates 4 to be lifted or lowered, so that the protective cover 5 can be driven to move downward to cover the load-sensitive multi-way valve body 1 to protect the load-sensitive multi-way valve body 1 or move upward to no longer cover the load-sensitive multi-way valve body 1, facilitating the lifting of the protective cover 5.

Claims

1. A load-sensitive multi-way valve with a protective structure, comprising a load-sensitive multi-way valve body (1), characterized in that: A concave-shaped heat dissipation base (2) is installed at the lower part of the load-sensitive multi-way valve body (1), a heat dissipation channel (9) is provided in the middle of the heat dissipation base (2), a window (10) is provided at the upper end of the heat dissipation channel (9), a plurality of heat dissipation fins (11) are fixed horizontally and equidistantly inside the heat dissipation channel (9), the upper part of the heat dissipation fins (11) extends out of the window (10) and is closely attached to the lower part of the load-sensitive multi-way valve body (1), an air hole (12) is provided in the middle of the heat dissipation fins (11), a heat dissipation pipe (7) is passed through and fixed at the right end of the heat dissipation channel (9), and a fan (8) is installed inside the heat dissipation pipe (7).

2. A load-sensing multi-way valve with a protective structure according to claim 1, characterized in that: A protective cover (5) is slidably connected to the inner side of the heat dissipation base (2), and pipe openings (6) are provided on both the front and rear sides of the lower end of the protective cover (5), and the pipes of the load-sensitive multi-way valve body (1) are plugged into the pipe openings (6).

3. A load-sensing multi-way valve with a protective structure according to claim 2, characterized in that: The protective cover (5) is fixed with a lifting plate (4) at both left and right ends, a lifting column (3) is fixed at the lower end of the lifting plate (4), and slideways (13) are provided on both left and right sides of the upper end of the heat dissipation base (2), and the lower part of the lifting column (3) extends into the interior of the slideway (13).

4. A load-sensing multi-way valve with a protective structure according to claim 3, characterized in that: A threaded groove (14) is formed at the lower end of the lifting column (3), a threaded rod (16) is threadedly connected inside the threaded groove (14), a motor (15) is connected to the lower part of the threaded rod (16), and the motor (15) is embedded and fixed in the bottom of the threaded groove (14).

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