Quick oil cleaning manual pump with double pump cores

Abstract

The invention relates to the technical field of manual pumps, in particular to a double-pump-core rapid oil cleaning manual pump which comprises a main body, a pull rod is installed on the main body, a small pump body and a large pump body are arranged on one side of the main body, an oil suction hole and an oil conveying cavity are formed in the main body, and the oil suction hole is connected with a cleaning hole. Hydraulic oil in an oil barrel is sucked into a cleaning hole through an oil suction hole, then the hydraulic oil is lifted into a small pump body along a first small steel ball, then the hydraulic oil is lifted into a large pump body along a second small steel ball, a pull rod is pressed down, the hydraulic oil is fed into an oil pressure pipe, and the hydraulic oil is lifted into the small pump body along a first large steel ball. The first small steel ball seals the lower outlet hole under the action of gravity, hydraulic oil is lifted along the second large steel ball to enter the large pump body, the second small steel ball seals the lower outlet hole under the action of gravity, dirt in the main body can flow into the cleaning hole, and the dirt can be removed by opening the plug.

Description

Technical Field

[0001] This application relates to the technical field of manual pumps, and in particular to a double-pump-core fast oil-cleaning manual pump. Background Art

[0002] A manual pump is a type of hydraulic pump. As the power source of a hydraulic system, it mainly uses fluids, including hydraulic oil, saponified oil, water, etc. as the medium. Generally, manual hydraulic pumps are designed with a horizontal plunger, and ultra-high-pressure manual pumps generate ultra-high pressure through the conversion of double plungers.

[0003] Through retrieval, the Chinese patent publication number CN214998055U discloses a manual pump. By limiting the sliding of the sliding end integrally formed at the tail of the control handle inside the U-shaped limit sliding frame, the up-and-down pressing control handle can be limited in movement, so that the control handle movably connected to the pump body is not easily deflected and damaged by left and right movement, and the operation is simple and convenient, and the use is safe and convenient.

[0004] In view of the above related technologies, the inventor found the following defects: If the hydraulic oil is not changed for a long time, impurities will increase. Running under such circumstances for a long time will seriously shorten the service life of the pump, oil circuit and actuator cylinder, resulting in unstable system operation, oil leakage, and in severe cases, pressure loss and a significant reduction in the service life of the hydraulic oil pump. Summary of the Invention

[0005] In order to facilitate the rapid oil cleaning of the manual pump, this application provides a double-pump-core fast oil-cleaning manual pump.

[0006] A double-pump-core fast oil-cleaning manual pump provided by this application adopts the following technical solutions: It includes a main body, a pull rod is installed on the main body, a small pump body and a large pump body are arranged on one side of the main body, an oil suction hole and an oil delivery cavity are arranged inside the main body, a cleaning hole is connected to the oil suction hole, the cleaning hole is communicated between the small pump body and the large pump body, a small steel ball one and a large steel ball one are arranged between the cleaning hole and the small pump body, a small steel ball two and a large steel ball two are arranged between the cleaning hole and the large pump body, the oil suction hole is communicated with the oil delivery cavity, and a connection hole is arranged at one end of the oil delivery cavity.

[0007] Optionally, a plug is arranged at one end of the cleaning hole, and the plug is threadedly connected to the cleaning hole.

[0008] Optionally, the connection hole is arranged above the cleaning hole, and the connection hole is connected to an oil pipe.

[0009] Optionally, a spring is arranged between the large steel ball two and the large pump body, and the same spring is arranged between the small pump body and the large steel ball one.

[0010] Optionally, the oil suction hole is inclined, and the end of the oil suction hole connected to the cleaning hole is lower than the other end.

[0011] Optionally, an adjustment hole is provided on a side of the main body away from the small pump body, and the adjustment hole is connected to the oil suction hole and the connection hole.

[0012] Optionally, both the small pump body and the large pump body are inclined, and the first small steel ball is arranged below the first large steel ball.

[0013] In summary, the present application includes the following beneficial technical effects:

[0014] 1. In the present invention, by manually lifting the pull rod, hydraulic oil is pumped into the main body, and the hydraulic oil in the oil barrel is sucked into the cleaning hole through the oil suction hole. Then, the hydraulic oil is lifted along the first small steel ball and enters the small pump body. Subsequently, the hydraulic oil is lifted along the second small steel ball and enters the large pump body. By pressing down the pull rod, the hydraulic oil is sent into the oil pressure pipe. The hydraulic oil is lifted along the first large steel ball and enters the small pump body. The gravity will cause the first small steel ball to seal the lower outlet hole. The hydraulic oil is lifted along the second large steel ball and enters the large pump body. The gravity will cause the second small steel ball to seal the lower outlet hole. The dirt in the main body will flow into the cleaning hole, and the dirt can be removed by opening the plug.

[0015] 2. In the present invention, by providing components such as an adjustment hole, a plug, and a spring, during the working process, by connecting the oil inlet and the oil outlet through the pressure regulating hole at the same time, the pressure regulating function can be achieved, which is convenient for the staff to use. And a thrust is applied to the first large steel ball and the second large steel ball through the spring component, so that the first large steel ball and the second large steel ball are reset. And the plug component is connected to the main body, so as to block one end of the cleaning hole to prevent liquid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure in an embodiment of the present application;

[0017] Figure 2 is a schematic diagram of the connection of the oil suction hole in an embodiment of the present application;

[0018] Figure 3 is a schematic diagram of the structure of the small pump body in an embodiment of the present application;

[0019] Figure 4 is a schematic diagram of the structure of the large pump body in an embodiment of the present application;

[0020] Figure 5 is a partial cross-sectional view of an embodiment of the present application.

[0021] Reference numerals: 1, main body; 2, pull rod; 3, connection hole; 4, oil suction hole; 5, cleaning hole; 6, plug; 7, small pump body; 8, large pump body; 9, small steel ball I; 10, large steel ball I; 11, small steel ball II; 12, large steel ball II; 13, spring; 14, adjustment hole; 15, oil delivery chamber. Detailed implementation manners

[0022] The following further elaborates on this application in conjunction with the Figures 1 - 5 drawings.

[0023] An embodiment of this application discloses a double-pump core rapid oil cleaning manual pump. As Figure 1 shown in Figure 2 , it includes a main body 1, on which a pull rod 2 is installed. On one side of the main body 1, a small pump body 7 and a large pump body 8 are provided. Both the small pump body 7 and the large pump body 8 are inclined. An oil suction hole 4 and an oil delivery chamber 15 are arranged inside the main body 1. A cleaning hole 5 is connected to the oil suction hole 4. During the working process, the staff manually controls the pull rod 2 to rotate upward, so as to suck the hydraulic oil in the oil barrel into the cleaning hole 5 through the oil suction hole 4.

[0024] Please refer to Figure 1 and Figure 2 . One end of the cleaning hole 5 is provided with a plug 6. The plug 6 is threadedly connected to the cleaning hole 5. An anti-blocking ball is arranged between one end of the plug 6 and the cleaning hole 5. The anti-blocking ball is arranged inside the cleaning hole 5 and is slidably connected to the cleaning hole 5. The oil suction hole 4 is inclined, and the end of the oil suction hole 4 connected to the cleaning hole 5 is lower than the other end, which is convenient for the oil liquid to enter the cleaning hole 5 and precipitate the sundries in the oil liquid in the cleaning hole 5.

[0025] Please refer to Figure 3 and Figure 4 . The cleaning hole 5 is communicated with the small pump body 7 and the large pump body 8. A small steel ball I 9 and a large steel ball I 10 are arranged between the cleaning hole 5 and the small pump body 7, and the small steel ball I 9 is arranged below the large steel ball I 10. A small steel ball II 11 and a large steel ball II 12 are arranged between the cleaning hole 5 and the large pump body 8. As the pull rod 2 rotates, the oil liquid is lifted along the small steel ball I 9 and enters the small pump body 7, and the oil liquid is lifted along the small steel ball II 11 and enters the large pump body 8.

[0026] Please refer to Figure 3 and Figure 4 . A spring 13 is arranged between the large steel ball II 12 and the large pump body 8. The same spring 13 is arranged between the small pump body 7 and the large steel ball I 10. The spring 13 plays a certain blocking role on the large steel ball II 12 and the large steel ball I 10. The oil suction hole 4 is communicated with the oil delivery chamber 15. One end of the oil delivery chamber 15 is provided with a connection hole 3. The connection hole 3 is arranged above the cleaning hole 5, and the connection hole 3 is connected to an oil pipe. The oil pipe is an external component.

[0027] Please refer toFigure 5 , on the side of the main body 1 away from the small pump body 7, an adjustment hole 14 is provided. The adjustment hole 14 is connected to the oil suction hole 4 and the connection hole 3, which can play a role in pressure adjustment.

[0028] The implementation principle of a double-pump-core quick oil-cleaning manual pump in an embodiment of this application is as follows: During use, the staff manually lifts the pull rod 2 to draw hydraulic oil into the main body 1, and sucks the hydraulic oil in the oil barrel into the cleaning hole 5 through the oil suction hole 4. Since one end of the cleaning hole 5 is blocked by a plug 6, oil leakage is prevented. Then, the hydraulic oil is lifted along the small steel ball 1 into the small pump body 7, and then the hydraulic oil is lifted along the small steel ball 2 into the large pump body 8. Subsequently, the staff presses down the pull rod 2 to send the hydraulic oil into the oil pressure pipe. The hydraulic oil is lifted along the small steel ball 1 into the small pump body 7, and under the action of gravity, the small steel ball 1 seals the lower outlet hole. Similarly, the hydraulic oil is lifted along the small steel ball 2 into the large pump body 2 8, and under the action of gravity, the small steel ball 2 seals the lower outlet hole. The dirt in the main body 1 will flow into the cleaning hole, and the dirt can be removed by opening the plug 6.

[0029] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A double-pump-core quick oil-cleaning manual pump, comprising a main body (1), characterized in that: A pull rod (2) is installed on the main body (1). A small pump body (7) and a large pump body (8) are arranged on one side of the main body (1). An oil suction hole (4) and an oil delivery cavity (15) are arranged in the main body (1). A cleaning hole (5) is connected to the oil suction hole (4). The cleaning hole (5) is communicated between the small pump body (7) and the large pump body (8). A first small steel ball (9) and a first large steel ball (10) are arranged between the cleaning hole (5) and the small pump body (7). A second small steel ball (11) and a second large steel ball (12) are arranged between the cleaning hole (5) and the large pump body (8). The oil suction hole (4) is communicated with the oil delivery cavity (15). A connection hole (3) is arranged at one end of the oil delivery cavity (15).

2. The double-pump-core quick oil-cleaning manual pump according to claim 1, wherein: A plug (6) is arranged at one end of the cleaning hole (5). The plug (6) is threadedly connected to the cleaning hole (5).

3. A double-pump-core quick oil-cleaning manual pump according to claim 1, characterized in that: The connection hole (3) is arranged above the cleaning hole (5), and the connection hole (3) is connected to an oil pipe.

4. A double-pump-core quick oil-clearing manual pump according to claim 1, characterized in that: A spring (13) is arranged between the second large steel ball (12) and the large pump body (8). The same spring (13) is arranged between the small pump body (7) and the first large steel ball (10).

5. A double-pump-core quick oil-cleaning manual pump according to claim 1, characterized in that: The oil suction hole (4) is inclined, and the end of the oil suction hole (4) connected to the cleaning hole (5) is lower than the other end.

6. A double-pump-core rapid oil-cleaning manual pump according to claim 1, characterized in that: An adjustment hole (14) is arranged on the side of the main body (1) away from the small pump body (7). The adjustment hole (14) is connected to the oil suction hole (4) and the connection hole (3).

7. A double-pump-core quick oil-cleaning manual pump according to claim 1, characterized in that: Both the small pump body (7) and the large pump body (8) are inclined, and the first small steel ball (9) is arranged below the first large steel ball (10).

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