Novel hydraulic power control unit

Abstract

The utility model discloses a novel hydraulic power control unit, which relates to the technical field of hydraulic power and comprises an upper shell, a lower shell is arranged at the bottom of the upper shell, four first connecting columns are fixedly connected to the inner top wall of the upper shell, and second connecting columns are fixedly connected to the inner bottom wall of the lower shell. A waterproof mechanism used for preventing water from entering the switch position of the hydraulic power control unit is arranged in the upper shell and comprises a circuit board and two protective sleeves. The upper shell, the lower shell, the first connecting column, the second connecting column and the waterproof mechanism are arranged in a matched mode, so that when the hydraulic power control unit is used, the switch position of the hydraulic power control unit can be sealed, water is prevented from entering the hydraulic power control unit through the switch position of the hydraulic power control unit, and the service life of the hydraulic power control unit is prolonged. The waterproof performance of the hydraulic power control unit is improved, and the use safety of workers is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic power, in particular to a new type of hydraulic power control unit. Background Art

[0002] The hydraulic power unit is used as an oil supply device. It is connected to several hydraulic cylinders through an external pipeline system to control the actions of multiple groups of valves. The fuel tank, oil pump, and accumulator form an independent and sealed power oil source system. The oil station can be equipped with a PLC control system, which controls all internal hydraulic functions and generates signals to exchange with the control room. Control elements such as hydraulic servo valves are directly installed on the hydraulic cylinders. Through this valve, high-pressure oil is pressed into the cylinder or high-pressure oil is released from it.

[0003] Under normal conditions, the oil pump supplies oil to the system and automatically maintains the rated pressure of the system. Through the locking of the control valve, the function of maintaining the position of the valve at any position is realized. In the working state, the hydraulic actuator is controlled by the solenoid valve. The system command signal makes the solenoid valve act, controls the release of the oil pressure and the energy of the accumulator, and then controls the cylinder slide valve. Through the mechanical transmission mechanism, the valve is driven to implement rapid closing, normal opening and closing, and test control.

[0004] In the existing patent document with the authorization announcement number CN213360667U, a groove is provided in the middle of the housing of the lower shell, a sealing strip is provided inside the groove, a sealing rubber ring is provided around the button, a rib is provided in the middle of the housing of the upper shell, and a hollow column is provided inside the upper shell. When the upper shell and the lower shell are fixed together, the rib is snapped into the groove and squeezes the sealing strip, the button enters the center of the hollow column, and the lower end of the hollow column squeezes the sealing rubber ring to realize the sealing of the hydraulic power control unit. However, since the switch position of the hydraulic power control unit often encounters the situation of water ingress during use, it is easy to cause a short circuit inside the hydraulic power control unit and lead to burnout, affecting the normal use of the hydraulic power control unit. Therefore, we provide a new type of hydraulic power control unit to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to make up for the deficiencies of the existing technology and provide a new type of hydraulic power control unit.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A new type of hydraulic power control unit, including an upper housing, the bottom of the upper housing is provided with a lower housing, the inner top wall of the upper housing is fixedly connected with four first connecting columns, and the inner bottom wall of the lower housing is fixedly connected with second connecting columns.

[0007] A waterproof mechanism for preventing water ingress at the switch position of the hydraulic power control unit is provided inside the upper housing.

[0008] The waterproof mechanism includes a circuit board and two protective sleeves. Both protective sleeves are fixedly connected to the upper housing. A pressing block is slidably connected to the inner wall of each protective sleeve. A connecting block is fixedly connected to the inner bottom wall of each protective sleeve. A return spring is fixedly connected to the bottom surface of each pressing block. The two return springs are respectively fixedly connected to the two connecting blocks. The circuit board is installed on the inner bottom wall of the lower housing, and two touch switches are installed on the upper surface of the circuit board.

[0009] Furthermore, an indicating arrow is provided on the upper surface of each pressing block. The indicating arrow can prompt the staff to avoid a series of problems caused by pressing the wrong switch. A nameplate is fixedly connected to the upper surface of the upper housing. By setting the nameplate, the manufacturer of the hydraulic power control unit and some technical data under the rated working conditions can be recorded for correct use without damage.

[0010] Furthermore, mounting blocks are fixedly connected to the four corners of the lower housing. A kidney-shaped opening is provided on the upper surface of each mounting block. By setting the mounting blocks, it is convenient to install the hydraulic power control unit, and the position can be finely adjusted during installation.

[0011] Furthermore, a convex block is fixedly connected to the bottom surface of the upper housing. The convex block is slidably connected to the lower housing. By setting the convex block, the waterproof effect at the connection between the upper housing and the lower housing can be ensured, and external water can be prevented from directly entering the interior of the hydraulic power control unit.

[0012] Furthermore, a first sealing gasket is provided in the reserved groove opened on the upper surface of the lower housing. By setting the first sealing gasket, the waterproof effect between the upper housing and the lower housing can be further improved. Second sealing gaskets are provided in the four reserved grooves opened on the upper surface of the upper housing. By setting the second sealing gaskets, external water can be prevented from entering the interior of the hydraulic power control unit through the four inverted convex-shaped grooves opened on the upper surface of the upper housing.

[0013] Furthermore, a threaded tube is provided between the upper housing and the lower housing. A nut is threadedly connected to the outer surface of the threaded tube, and an external wire can pass through it to be connected to the circuit board inside the hydraulic power control unit.

[0014] Furthermore, two third sealing gaskets are sleeved on the outer surface of the threaded tube. By setting the third sealing gaskets, the waterproof effect at the connection between the threaded tube and the hydraulic power control unit can be improved. A plurality of clamping claws are fixedly connected to the end of the threaded tube far away from the upper housing. By setting the clamping claws, the wires of the external circuit can be clamped or separated.

[0015] Compared with the prior art, the new hydraulic power control unit has the following beneficial effects:

[0016] 1. Through the cooperative setting among the upper shell, the lower shell, the first connecting column, the second connecting column and the waterproof mechanism, the utility model can achieve the sealing treatment of the switch position of the hydraulic power control unit when it is in use, avoid water entering its interior through the switch position of the hydraulic power control unit, cause the internal circuit to short-circuit or even burn out, improve the waterproof performance of the hydraulic power control unit, and protect the use safety of the staff.

[0017] 2. By setting a nameplate, the utility model can record the manufacturer of the hydraulic power control unit and some technical data under the rated working conditions for correct use without damage. By setting mounting blocks, it is convenient to install the hydraulic power control unit and the position can be finely adjusted during installation. By setting bumps and the first sealing gasket, the waterproof effect at the connection between the upper shell and the lower shell can be ensured, avoiding external water directly entering the interior of the hydraulic power control unit. By setting the second sealing gasket, it can prevent external water from entering the interior of the hydraulic power control unit through the first connecting column. By setting a threaded pipe and a nut, an external wire can pass through it to connect with the circuit inside the hydraulic power control unit. By setting the third sealing gasket, the waterproof effect at the connection between the threaded pipe and the hydraulic power control unit can be improved. By setting clamping claws, the wire of the external circuit can be clamped or separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 is a right view schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 3 is a front view cross-sectional view of the three-dimensional structure of the utility model;

[0021] Figure 4 is an exploded schematic diagram of the three-dimensional structure of the utility model.

[0022] In the figure: 1. Upper shell; 2. Lower shell; 3. First connecting column; 4. Second connecting column; 5. Waterproof mechanism; 501. Protective sleeve; 502. Pressing block; 503. Return spring; 504. Connecting block; 505. Circuit board; 506. Touch switch; 6. Nameplate; 7. Mounting block; 8. Bump; 9. First sealing gasket; 10. Second sealing gasket; 11. Threaded pipe; 12. Nut; 13. Third sealing gasket; 14. Clamping claw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The principles and features of the utility model are described below with reference to the accompanying drawings. The examples given are only for explaining the utility model and not for limiting the scope of the utility model.

[0024] As described in the background art, since the switch position of the hydraulic power control unit often encounters water ingress during use, it is easy for the inside of the hydraulic power control unit to be short-circuited and burned out, affecting the normal use of the hydraulic power control unit. For this reason, this embodiment provides a new type of hydraulic power control unit.

[0025] See Figures 1 to 4 , this embodiment proposes a new type of hydraulic power control unit, including an upper housing 1. Second gaskets 10 are arranged in four reserved slots opened on the upper surface of the upper housing 1. By arranging the second gaskets 10, it is possible to prevent external water from entering the inside of the hydraulic power control unit through four inverted convex-shaped grooves opened on the upper surface of the upper housing 1.

[0026] A lower housing 2 is arranged at the bottom of the upper housing 1. Four first connecting columns 3 are fixedly connected to the inner top wall of the upper housing 1, and a second connecting column 4 is fixedly connected to the inner bottom wall of the lower housing 2.

[0027] The hydraulic power control unit is jointly composed of the upper housing 1 and the lower housing 2 to form its protective shell. The reserved slots opened on the upper surface of the upper housing 1 are inverted convex-shaped grooves. Fixing screws pass through the inverted convex-shaped grooves to connect the first connecting column 3 and the second connecting column 4, thereby realizing the connection between the upper housing 1 and the lower housing 2.

[0028] Both the upper housing 1 and the lower housing 2 are made of ABS material. The ABS housing material has an anti-static effect, high hardness, and good insulation performance, and is the best material for electrical products.

[0029] A nameplate 6 is fixedly connected to the upper surface of the upper housing 1. By arranging the nameplate 6, it is possible to record the manufacturer of the hydraulic power control unit and some technical data under rated working conditions for correct use without damage.

[0030] Installation blocks 7 are fixedly connected to the four corners of the lower housing 2. Waist-shaped openings are opened on the upper surface of each installation block 7. By arranging the installation blocks 7, it is possible to facilitate the installation of the hydraulic power control unit and at the same time fine-tune the position during installation.

[0031] A convex block 8 is fixedly connected to the bottom surface of the upper housing 1. The convex block 8 is slidably connected to the lower housing 2. A first gasket 9 is arranged in a reserved slot opened on the upper surface of the lower housing 2. When assembling the upper housing 1 and the waterproof lower housing 2, the convex block 8 squeezes the first gasket 9 to generate elastic deformation to seal the gap, thereby improving the waterproof effect between the upper housing 1 and the lower housing 2.

[0032] Inside the upper housing 1, there is a waterproof mechanism 5 for preventing water from entering the switch position of the hydraulic power control unit. The waterproof mechanism 5 includes a circuit board 505 and two protective sleeves 501, and both of the two protective sleeves 501 are fixedly connected to the upper housing 1.

[0033] A pressing block 502 is slidably connected to the inner wall of each protective sleeve 501, and an indicating arrow is provided on the upper surface of each pressing block 502. The indicating arrow can prompt the staff to avoid a series of problems caused by pressing the wrong switch.

[0034] A connecting block 504 is fixedly connected to the inner bottom wall of each protective sleeve 501, and a return spring 503 is fixedly connected to the bottom surface of each pressing block 502. The two return springs 503 are respectively fixedly connected to the two connecting blocks 504.

[0035] The protective sleeve 501 is directly sealed and fixed in the inner wall of the upper housing 1 and is made of rubber material, which can limit and support the pressing block 502, and at the same time has a certain insulating ability to protect the safety of the staff during use.

[0036] Pressing the pressing block 502 can make it slide downward along the inner wall of the protective sleeve 501. The pressing block 502 squeezes the return spring 503, causing it to compress and generate elastic deformation. At the same time, it drives the connecting block 504 to move downward, and the connecting block 504 squeezes the inner bottom wall of the protective sleeve 501, causing it to deform and move downward.

[0037] The circuit board 505 is installed on the inner bottom wall of the lower housing 2. Two touch switches 506 are installed on the upper surface of the circuit board 505. The circuit board 505 is installed on the inner bottom wall of the lower housing 2 and is connected to external wires. When the protective sleeve 501 deforms and moves downward, it will press the touch switch 506 to make it act, avoiding the generation of gaps at the switch position of the hydraulic power control unit during use, thereby preventing external water from entering the inside of the hydraulic power control unit, improving the waterproof performance of the hydraulic power control unit, and protecting the safety of the staff during use.

[0038] A threaded tube 11 is provided between the upper housing 1 and the lower housing 2. The outer surface of the threaded tube 11 is threadedly connected with a nut 12. Two third sealing gaskets 13 are sleeved on the outer surface of the threaded tube 11. One end of the threaded tube 11 away from the upper housing 1 is fixedly connected with a plurality of clamping claws 14.

[0039] Both of the two third sealing gaskets 13 are sleeved on the outer surface of the threaded tube 11 and are respectively in contact with the outer surface and the inner wall of the upper housing 1 and the lower housing 2. By tightening the nut 12, the two third sealing gaskets 13 are squeezed to fix the threaded tube 11 and seal the gap, improving the waterproof effect.

[0040] A tightening cap is provided on the outside of the threaded tube 11. The tightening cap is a prior art. One end of the tightening cap is threadedly assembled with the threaded tube 11, and the other end is engaged with the clamping claw 14, which can be used to drive the clamping claw 14 to clamp or separate. A waterproof rubber ring can be installed on the inner wall of the threaded tube 11 to adapt to the external wire.

[0041] The external wire passes through the threaded tube 11 and is connected to the circuit board 505 inside the hydraulic power control unit. The tightening cap is used to drive the clamping claw 14 to clamp the external wire and fit it completely, so as to prevent water from entering the inside of the hydraulic power control unit through the gap.

[0042] Working principle: The new type of hydraulic power control unit is composed of an upper shell 1 and a lower shell 2 to form its protective shell. The fixing screw passes through the inverted convex groove opened on the upper surface of the upper shell 1 to connect the first connecting column 3 and the second connecting column 4, so as to realize the connection between the upper shell 1 and the lower shell 2. When in use, pressing the pressing block 502 can make it slide downward along the inner wall of the protective sleeve 501. The pressing block 502 squeezes the return spring 503, making it compress and generate elastic deformation, and at the same time drives the connecting block 504 to move downward. The connecting block 504 squeezes the inner bottom wall of the protective sleeve 501, making it deform and move downward locally. The deformation and downward movement of the protective sleeve 501 will press the touch switch 506 to make it act. When the pressing block 502 is released, under the reset action of the return spring 503 and the protective sleeve 501, the protective sleeve 501 and the return spring 503 rebound, so that the pressing block 502 returns to its initial position. The utility model can seal the switch position of the hydraulic power control unit when it is in use, avoid water from entering its interior through the switch position of the hydraulic power control unit, cause the internal circuit to short-circuit or even burn out, improve the waterproof performance of the hydraulic power control unit, and protect the safety of the staff during use.

Claims

1. A novel hydraulic power control unit, comprising an upper housing (1), characterized in that: The bottom of the upper housing (1) is provided with a lower housing (2). Four first connecting columns (3) are fixedly connected to the inner top wall of the upper housing (1), and a second connecting column (4) is fixedly connected to the inner bottom wall of the lower housing (2). A waterproof mechanism (5) for preventing water from entering the switch position of the hydraulic power control unit is arranged inside the upper housing (1). The waterproof mechanism (5) includes a circuit board (505) and two protective sleeves (501). Both protective sleeves (501) are fixedly connected to the upper housing (1). A pressing block (502) is slidably connected to the inner wall of each protective sleeve (501). A connecting block (504) is fixedly connected to the inner bottom wall of each protective sleeve (501). A return spring (503) is fixedly connected to the bottom surface of each pressing block (502). The two return springs (503) are respectively fixedly connected to the two connecting blocks (504). The circuit board (505) is installed on the inner bottom wall of the lower housing (2), and two touch switches (506) are installed on the upper surface of the circuit board (505).

2. The novel hydraulic power control unit according to claim 1, wherein: An indicating arrow is formed on the upper surface of each pressing block (502), and a nameplate (6) is fixedly connected to the upper surface of the upper housing (1).

3. A novel hydraulic power control unit according to claim 1, characterized in that: Mounting blocks (7) are fixedly connected to the four corners of the lower housing (2), and a kidney-shaped opening is formed on the upper surface of each mounting block (7).

4. A novel hydraulic power control unit according to claim 1, characterized in that: A convex block (8) is fixedly connected to the bottom surface of the upper housing (1), and the convex block (8) is slidably connected to the lower housing (2).

5. A novel hydraulic power control unit according to claim 1, characterized in that: A first gasket (9) is arranged in the reserved groove formed on the upper surface of the lower housing (2), and second gaskets (10) are arranged in the four reserved grooves formed on the upper surface of the upper housing (1).

6. A novel hydraulic power control unit according to claim 1, characterized in that: A threaded pipe (11) is arranged between the upper housing (1) and the lower housing (2), and a nut (12) is threadedly connected to the outer surface of the threaded pipe (11).

7. A novel hydraulic power control unit according to claim 6, characterized in that: Two third gaskets (13) are sleeved on the outer surface of the threaded pipe (11), and a plurality of clamping claws (14) are fixedly connected to the end of the threaded pipe (11) far away from the upper housing (1).

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