Portable hydraulic system

Abstract

The utility model relates to the technical field of hydraulic systems, in particular to a portable hydraulic system which is provided with an independent power supply unit and a hydraulic oil pressure storage device, has an emergency hydraulic function during power failure and improves the reliability of the system. Comprising an oil tank and a hydraulic pump unit, an oil storage cavity is formed in the oil tank, the hydraulic pump unit is installed on the oil tank, and an oil pumping pipe of the hydraulic pump unit extends into the oil storage cavity of the oil tank; the power supply unit supplies power to the hydraulic pump unit, the input end of the one-way oil pipe is connected with the output end of the hydraulic pump unit, the output end of the one-way oil pipe is connected with an oil inlet hole of the high-pressure oil cylinder assembly, and the piston is installed in the high-pressure oil cylinder assembly in a sliding mode; the piston is located on the other side of the oil inlet and the oil outlet of the high-pressure oil cylinder assembly, the spring is located in the high-pressure oil cylinder assembly, one end of the spring is connected with the piston, and the other end of the spring is connected with the end, away from the oil inlet and the oil outlet, of the high-pressure oil cylinder assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic system especially relates to a portable hydraulic system. BACKGROUND

[0002] The portable hydraulic system is small in size and is applied to small mechanical equipment in various fields or in field emergency scenes. A variety of portable hydraulic systems are disclosed in the prior art, for example, the portable hydraulic system disclosed in the Chinese utility model patent with the publication number CN212338619U, which comprises a fixed base, a box body, an oil tank and a gear oil pump. A three-way pipe is arranged on the top of the fixed base away from the side of the oil tank. One end of the three-way pipe is fixedly connected with a connecting pipe. A first return oil pipe is installed at the center of the top end of the three-way pipe. The top end of the first return oil pipe is fixedly connected with a second return oil pipe corresponding to the oil tank. A one-way valve is installed at the center of the second return oil pipe. The end of the connecting pipe away from the three-way pipe is fixedly connected with a hydraulic cylinder. The hydraulic cylinder is provided with a piston rod at one end. The portable hydraulic system not only has a hydraulic transmission mechanism, but also has a portable mechanism, which is convenient to carry and can also complete related work with different tools, greatly improving the work efficiency.

[0003] However, the above-mentioned prior art does not have an independent power supply unit, resulting in the need for arranging cables and corresponding power supply equipment when the device is working, which is not good in portability. It also does not have a pressure storage device, resulting in the loss of hydraulic function when power is off, reducing reliability. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a portable hydraulic system with an independent power supply unit and a hydraulic oil pressure storage device, which has an emergency hydraulic function when power is off, improving the reliability of the system.

[0005] The utility model discloses a portable hydraulic system, including oil tank and hydraulic pump unit, the inside setting oil storage chamber of oil tank, the hydraulic pump unit is installed on the oil tank, and the oil extraction pipe of hydraulic pump unit extends into the oil storage chamber of oil tank, still include power unit, one -way oil pipe, high -pressure oil cylinder subassembly, piston and spring, and power unit supplies power to the hydraulic pump unit, and the input end of one -way oil pipe is connected with the output of the hydraulic pump unit, and the output of one -way oil pipe is connected with the oil inlet hole of high -pressure oil cylinder subassembly, and the piston is slidably installed in high -pressure oil cylinder subassembly, and the piston is located the other side of the oil inlet hole and the oil outlet hole of high -pressure oil cylinder subassembly, and the spring is located in high -pressure oil cylinder subassembly, and one end of spring is connected with the piston, and the other end of spring is connected with the one end of high -pressure oil cylinder subassembly away from the oil inlet and the oil outlet hole, power unit supplies power to the hydraulic pump unit, makes the device work independently in the emergency away from power supply, when working, the hydraulic pump unit runs and extracts the hydraulic pressure stored in the oil tank and transports to high -pressure oil cylinder subassembly through one -way oil pipe, and after the hydraulic oil enters high -pressure oil cylinder subassembly, the piston is pushed to compress spring, until the pressure of the hydraulic oil in high -pressure oil cylinder subassembly reaches the set value, by installing check valve on one -way oil pipe, avoid the hydraulic oil in high -pressure oil cylinder subassembly backflow through one -way oil pipe, because the hydraulic oil cannot be compressed and the spring can be compressed, realize the pressure storage of the hydraulic oil in high -pressure oil cylinder subassembly through the compression spring, and the piston is compressed to the bottom of high -pressure oil cylinder subassembly and can store more hydraulic oil, and the spring elongation pushes out the hydraulic oil in high -pressure oil cylinder subassembly under the condition of power failure, realizes the emergency hydraulic function of a certain time, improves the reliability of system.

[0006] Preferably, it further includes a base plate and a screw rod, the base plate is slidably installed in the high-pressure cylinder assembly, the lower end of the spring is connected with the base plate, one end of the screw rod is installed on the base plate, the middle part of the screw rod is threadedly connected with the end of the high-pressure cylinder assembly, and the other end of the screw rod extends out of the end of the high-pressure cylinder assembly; rotating the screw rod pushes the base plate to move in the high-pressure cylinder assembly under the action of the threads between the screw rod and the bottom of the high-pressure cylinder assembly, thereby adjusting the initial position of the piston and the liquid storage volume; after the energy storage and release of the spring are completed, the screw rod can be tightened to compress the spring again, thereby realizing the emergency supply of hydraulic oil and improving the emergency reliability.

[0007] Preferably, the high-pressure oil cylinder assembly includes a main oil cylinder and an auxiliary oil cylinder, as well as a connecting pipe. The inner diameter of the main oil cylinder is smaller than that of the auxiliary oil cylinder. The output end of the one-way oil pipe is connected to the oil inlet of the main oil cylinder. An oil outlet is provided near the oil inlet of the main oil cylinder. The end of the main oil cylinder away from the one-way oil pipe is connected to the inner end of the auxiliary oil cylinder through the connecting pipe. A piston, spring, base plate, and screw are installed inside the auxiliary oil cylinder at the end away from the connecting pipe. The middle part of the screw is threadedly connected to the end of the auxiliary oil cylinder, and the outer end of the screw extends out of the outside of the auxiliary oil cylinder. The piston and base plate are slidably installed in the auxiliary oil cylinder. The two ends of the spring are connected to the piston and the base plate, respectively. Since the inner diameter of the auxiliary oil cylinder is larger than that of the main oil cylinder, when the spring extends and pushes the piston, the pressure of the hydraulic oil output by the main oil cylinder is greater, thus improving the pressure storage effect.

[0008] Preferably, it also includes a pressure sensor, which is installed on the high-pressure oil cylinder assembly. The pressure sensor is used to detect the hydraulic oil pressure in the high-pressure oil cylinder assembly. The pressure sensor sets a hydraulic oil pressure threshold in the high-pressure oil cylinder assembly. The pressure sensor detects the hydraulic oil pressure value in the high-pressure oil cylinder assembly. When the pressure value drops to the minimum value, the pressure in the high-pressure oil cylinder assembly increases when the hydraulic pump unit starts. When the pressure value rises to the maximum value, the hydraulic pump unit stops, thereby improving the degree of automation.

[0009] Preferably, it also includes a sleeve, a first socket, a rocker arm, and a plug. The hydraulic pump unit is provided with an input shaft of the pump body. The sleeve is concentrically mounted on the input shaft of the pump body of the hydraulic pump unit. The end of the sleeve is concentrically provided with a first socket. One end of the rocker arm is equipped with a plug, and the plug matches the first socket. In the event of a power failure, the plug is inserted into the first socket, and the rocker arm is turned to rotate the sleeve and the input shaft of the pump body of the hydraulic pump unit, thereby manually driving the hydraulic pump unit to operate, realizing manual emergency operation and improving reliability.

[0010] Preferably, it also includes an oil outlet pipe, a valve assembly, and a return pipe. The input end of the oil outlet pipe is connected to the oil outlet port of the high-pressure oil cylinder assembly, and the output end of the oil outlet pipe is connected to the oil inlet end of the valve assembly. The valve assembly is internally equipped with multiple oil outlets. The input end of the return pipe is connected to the return end of the valve assembly, and the output end of the return pipe is connected to the oil storage chamber of the oil tank. The multiple oil outlets of the valve assembly are connected to the hydraulic equipment through oil pipes. The hydraulic oil in the high-pressure oil cylinder assembly is supplied to the valve assembly through the oil outlet pipe, so that the hydraulic oil is delivered to the hydraulic equipment after being regulated by the valve assembly. The hydraulic oil that has released pressure flows back to the oil storage chamber of the oil tank through the return pipe, improving practicality.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. The power supply unit supplies power to the hydraulic pump unit, enabling the device to operate independently in emergency situations where the power source is far away;

[0013] 2. The high-pressure oil cylinder assembly stores hydraulic oil by compression spring, and the piston is compressed to the bottom of the high-pressure oil cylinder assembly to store more hydraulic oil, and the spring is stretched to push the hydraulic oil in the high-pressure oil cylinder assembly out in the case of power failure, so that the emergency hydraulic function is realized for a certain time, and the reliability of the system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a front sectional view of the structure of the present application;

[0015] Figure 2 is a front sectional view of the structure of the present application;

[0016] Figure 3 is a front sectional view of the structure of the present application;

[0017] Figure 4 is a front sectional view of the structure of the present application;

[0018] Figure 5 is a front sectional view of the structure of the present application;

[0019] Figure 6 is a front sectional view of the structure of the present application; Figure 2 is a front sectional view of the structure of the present application;

[0020] Markings in the drawings: 1, oil tank; 2, hydraulic pump unit; 3, power supply unit; 4, one-way oil pipe; 5, high-pressure oil cylinder assembly; 6, piston; 7, spring; 8, bottom plate; 9, screw rod; 10, auxiliary oil cylinder; 11, connecting pipe; 12, pressure sensor; 13, sleeve head; 14, jack; 15, rocker; 16, plug; 17, gear ring one; 18, ratchet assembly; 19, gear hole two; 20, gear ring two; 21, oil outlet pipe; 22, valve group; 23, oil return pipe; 24, main oil cylinder. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0022] Embodiment 1

[0023] As Figures 1 to 3As shown, a portable hydraulic system includes an oil tank 1 and a hydraulic pump unit 2, the inside of the oil tank 1 is provided with an oil storage chamber, the hydraulic pump unit 2 is installed on the oil tank 1, and the oil suction pipe of the hydraulic pump unit 2 extends into the oil storage chamber of the oil tank 1; It also includes a power supply unit 3, a one-way oil pipe 4, a high-pressure oil cylinder assembly 5, a piston 6 and a spring 7, the power supply unit 3 supplies power to the hydraulic pump unit 2, the input end of the one-way oil pipe 4 is connected with the output end of the hydraulic pump unit 2, the output end of the one-way oil pipe 4 is connected with the oil inlet hole of the high-pressure oil cylinder assembly 5, the piston 6 is slidingly installed in the high-pressure oil cylinder assembly 5, the piston 6 is located on the other side of the oil inlet hole and the oil outlet hole of the high-pressure oil cylinder assembly 5, the spring 7 is located in the high-pressure oil cylinder assembly 5, one end of the spring 7 is connected with the piston 6, and the other end of the spring 7 is connected with the end of the high-pressure oil cylinder assembly 5 away from the oil inlet hole and the oil outlet hole; It also includes a bottom plate 8 and a screw rod 9, the bottom plate 8 is slidingly installed in the high-pressure oil cylinder assembly 5, the lower end of the spring 7 is connected with the bottom plate 8, one end of the screw rod 9 is installed on the bottom plate 8, the middle part of the screw rod 9 is threadedly connected with the end of the high-pressure oil cylinder assembly 5, and the other end of the screw rod 9 extends out of the end of the high-pressure oil cylinder assembly 5; It also includes a pressure sensor 12, the pressure sensor 12 is installed on the high-pressure oil cylinder assembly 5, and the pressure sensor 12 is used for detecting the hydraulic oil pressure in the high-pressure oil cylinder assembly 5; It also includes an oil outlet pipe 21, a valve group 22 and an oil return pipe 23, the input end of the oil outlet pipe 21 is connected with the oil outlet hole of the high-pressure oil cylinder assembly 5, the output end of the oil outlet pipe 21 is connected with the oil inlet end of the valve group 22, the inside of the valve group 22 is provided with a valve group, the valve group 22 is provided with a plurality of oil outlet ends, the input end of the oil return pipe 23 is connected with the oil return end of the valve group 22, and the output end of the oil return pipe 23 is in communication with the oil storage chamber of the oil tank 1.

[0024] The power unit 3 supplies power to the hydraulic pump unit 2, so that the device works independently in the emergency situation away from the power supply. In operation, the hydraulic pump unit 2 runs to extract the hydraulic oil stored in the oil tank 1 and transport it to the high-pressure oil cylinder assembly 5 through the one-way oil pipe 4. After the hydraulic oil enters the high-pressure oil cylinder assembly 5, it pushes the piston 6 to compress the spring 7. The pressure threshold of the hydraulic oil in the high-pressure oil cylinder assembly 5 is set by the pressure sensor 12. The pressure sensor 12 detects the pressure value of the hydraulic oil in the high-pressure oil cylinder assembly 5. When the pressure value decreases to the minimum value, the high-pressure oil cylinder assembly 5 is started. When the pressure value increases to the maximum value, the hydraulic pump unit 2 stops. By installing a one-way valve on the one-way oil pipe 4, the hydraulic oil in the high-pressure oil cylinder assembly 5 is prevented from flowing back through the one-way oil pipe 4. Since the hydraulic oil cannot be compressed but the spring 7 can be compressed, the pressure storage of the hydraulic oil in the high-pressure oil cylinder assembly 5 is achieved by compressing the spring 7. The piston 6 is compressed towards the bottom of the high-pressure oil cylinder assembly 5, so that more hydraulic oil can be stored. In the case of power failure, the spring 7 is elongated to push the hydraulic oil in the high-pressure oil cylinder assembly 5 out. The multiple oil outlets of the valve group 22 are connected to the hydraulic equipment through oil pipes. The hydraulic oil in the high-pressure oil cylinder assembly 5 is transported to the valve group 22 through the oil outlet pipe 21, so that the hydraulic oil is sent to the hydraulic equipment after being adjusted by the valve group 22. The hydraulic oil releasing pressure flows back to the oil storage chamber of the oil tank 1 through the oil return pipe 23, realizing the emergency hydraulic function for a certain period of time, improving the reliability of the system. Rotating the screw rod 9 pushes the bottom plate 8 to move in the high-pressure oil cylinder assembly 5 under the action of the threads between the screw rod 9 and the bottom of the high-pressure oil cylinder assembly 5, thereby adjusting the initial position of the piston 6 and adjusting the liquid storage volume. After the energy storage and release of the spring 7 are completed, the screw rod 9 can be tightened to compress the spring 7 again, so that the emergency supply of hydraulic oil provides hydraulic function and improves the emergency reliability.

[0025] Example 2

[0026] As shown in Figure 4 and Figure 5 , on the basis of example 1, the high-pressure oil cylinder assembly 5 includes a main oil cylinder 24 and a secondary oil cylinder 10, and also includes a connecting pipe 11. The inner diameter of the main oil cylinder 24 is smaller than that of the secondary oil cylinder 10. The output end of the one-way oil pipe 4 is connected to the oil inlet hole of the main oil cylinder 24. The oil outlet hole is arranged close to the oil inlet hole of the main oil cylinder 24. The end of the main oil cylinder 24 away from the one-way oil pipe 4 is communicated with the inner end of the secondary oil cylinder 10 through the connecting pipe 11. The piston 6, the spring 7, the bottom plate 8 and the screw rod 9 are installed at the inner end of the secondary oil cylinder 10 away from the connecting pipe 11. The middle part of the screw rod 9 is threadedly connected to the end of the secondary oil cylinder 10. The outer end of the screw rod 9 extends out of the outer environment of the secondary oil cylinder 10.

[0027] The piston 6 and the bottom plate 8 are slidingly installed in the auxiliary oil cylinder 10, and the two ends of the spring 7 are connected with the piston 6 and the bottom plate 8 respectively, and since the inner diameter of the auxiliary oil cylinder 10 is larger than the inner diameter of the main oil cylinder 24, the spring 7 can make the main oil cylinder 24 output the hydraulic oil with larger pressure when the spring 7 is elongated to push the piston 6, thereby improving the pressure storage effect.

[0028] The main function realized by the utility model is:

[0029] 1. Having independent power supply unit, working independently in emergency away from power supply;

[0030] 2. Having hydraulic oil pressure storage device, having emergency hydraulic function when power off, improving reliability of system;

[0031] 3. Being able to manually operate in emergency, improving reliability.

[0032] The installation mode, connection mode or setting mode of the portable hydraulic system are all common mechanical modes, and as long as the beneficial effects can be achieved, they can be implemented; the oil tank 1, the hydraulic pump unit 2, the power supply unit 3, the one-way oil pipe 4, the high-pressure oil cylinder assembly 5, the piston 6, the spring 7, the screw rod 9, the auxiliary oil cylinder 10, the connecting pipe 11, the main oil cylinder 24, the pressure sensor 12, the gear ring one 17, the ratchet wheel assembly 18, the gear ring two 20, the oil outlet pipe 21, the valve group 22, the oil return pipe 23 of the portable hydraulic system are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, and the technical personnel in the field do not need to pay creative labor.

[0033] All the technical and scientific terms used in the present application have the same meaning as that commonly understood by the technical personnel belonging to the technical field of the utility model. The terms used in the specification of the utility model are only for the purpose of describing the specific embodiments, and are not intended to limit the utility model. The term "and / or" used in the present application includes any and all combinations of one or more related listed items.

[0034] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, without departing from the technical principle of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. A portable hydraulic system comprising an oil tank (1) and a hydraulic pump unit (2), the inside of the oil tank (1) is provided with an oil storage chamber, the hydraulic pump unit (2) is installed on the oil tank (1), and the oil suction pipe of the hydraulic pump unit (2) extends into the oil storage chamber of the oil tank (1); characterized in that, The power supply unit (3) supplies power to the hydraulic pump unit (2), the input end of the one-way oil pipe (4) is connected with the output end of the hydraulic pump unit (2), the output end of the one-way oil pipe (4) is connected with the oil inlet hole of the high-pressure oil cylinder assembly (5), the piston (6) is slidingly installed in the high-pressure oil cylinder assembly (5), the piston (6) is located on the other side of the oil inlet hole and the oil outlet hole of the high-pressure oil cylinder assembly (5), the spring (7) is located in the high-pressure oil cylinder assembly (5), one end of the spring (7) is connected with the piston (6), the other end of the spring (7) is connected with the end of the high-pressure oil cylinder assembly (5) away from the oil inlet hole and the oil outlet hole.

2. A portable hydraulic system as claimed in claim 1, characterised in that, The bottom plate (8) is slidingly installed in the high-pressure oil cylinder assembly (5), the lower end of the spring (7) is connected with the bottom plate (8), one end of the screw rod (9) is installed on the bottom plate (8), the middle part of the screw rod (9) is threadedly connected with the end of the high-pressure oil cylinder assembly (5), the other end of the screw rod (9) extends out of the end of the high-pressure oil cylinder assembly (5).

3. A portable hydraulic system as claimed in claim 2, wherein, The high-pressure oil cylinder assembly (5) includes a main oil cylinder (24) and a secondary oil cylinder (10), and further includes a connecting pipe (11), the inner diameter of the main oil cylinder (24) is smaller than that of the secondary oil cylinder (10), the output end of the one-way oil pipe (4) is connected with the oil inlet hole of the main oil cylinder (24), the oil outlet hole is arranged close to the oil inlet hole of the main oil cylinder (24), the end of the main oil cylinder (24) away from the one-way oil pipe (4) is communicated with the inner end of the secondary oil cylinder (10) through the connecting pipe (11), the piston (6), the spring (7), the bottom plate (8) and the screw rod (9) are installed in the inner end of the secondary oil cylinder (10) away from the connecting pipe (11), the middle part of the screw rod (9) is threadedly connected with the end of the secondary oil cylinder (10), and the outer end of the screw rod (9) extends out of the outer environment of the secondary oil cylinder (10).

4. A portable hydraulic system as claimed in claim 1, wherein, The pressure sensor (12) is installed on the high-pressure oil cylinder assembly (5), and the pressure sensor (12) is used for detecting the hydraulic oil pressure in the high-pressure oil cylinder assembly (5).

5. A portable hydraulic system as claimed in claim 1, wherein, The hydraulic pump unit (2) is provided with an input shaft of a pump body, the sleeve head (13) is concentrically installed on the input shaft of the pump body of the hydraulic pump unit (2), the end of the sleeve head (13) is provided with the insertion hole I (14) in a concentric manner, one end of the rocker (15) is installed with the plug (16), and the plug (16) is matched with the insertion hole I (14).

6. A portable hydraulic system as claimed in claim 1, wherein, The oil outlet pipe (21), the valve group (22) and the oil return pipe (23) are further included, the input end of the oil outlet pipe (21) is connected with the oil outlet hole of the high-pressure oil cylinder assembly (5), the output end of the oil outlet pipe (21) is connected with the oil inlet end of the valve group (22), the valve group (22) is provided with a valve group in the inside, the valve group (22) is provided with a plurality of oil outlet ends, the input end of the oil return pipe (23) is connected with the oil return end of the valve group (22), and the output end of the oil return pipe (23) is communicated with the oil storage chamber of the oil tank (1).

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