Lithium battery oil pump

Abstract

The lithium battery oil pump comprises a pump body and a shell wrapping the periphery of the pump body, the front end of the pump body is provided with an oil inlet and an oil outlet, the oil outlet is connected with an oil outlet pipe connector, the periphery of the oil outlet pipe connector is sleeved with a three-way pipe, and the three-way pipe comprises a first pipe opening, a second pipe opening and a third pipe opening. The first pipe opening and the second pipe opening are communicated with each other, a cavity is formed inside the first pipe opening and the second pipe opening, the oil outlet pipe connector is sleeved with the cavity in a penetrating mode, a penetrating hole is formed in the oil outlet pipe connector, the third pipe opening is communicated with the penetrating hole, a pressure switch is connected to the third pipe opening, a circuit board is arranged in the shell, a power switch is arranged on the shell, and a lithium battery is inserted outside the shell. The power switch, the lithium battery and the pressure switch are all electrically connected with the circuit board. According to the lithium battery oil pump, when the power switch is in an on state and the pressure in the pressure switch exceeds a limit value, the pressure switch can disconnect a circuit of the circuit board and control the pump body to stop working, so that the condition of oil leakage caused by overhigh oil pressure is prevented.

Description

Technical Field

[0001] This utility model relates to the field of oil injection equipment technology, and in particular to a lithium-ion battery oil pump. Background Technology

[0002] Existing electric oil pumps suffer from flawed structural design. Even when the fuel nozzle connected to the pump's outlet is closed, the pump continues to operate, causing the oil in the outlet pipe to continuously fill and increase in pressure. After a period of operation, this excessively high oil pressure can easily lead to oil leakage from the pipe connections, causing environmental pollution and wasting oil. This type of existing electric oil pump design is highly impractical, thus requiring improvements from those skilled in the art. Utility Model Content

[0003] The purpose of this utility model is to provide a lithium-ion battery oil pump, in which the pressure switch is designed so that when the oil pressure in the pump body is too high and oil enters the pressure switch, the pressure switch can disconnect the circuit of the circuit board and control the pump body to stop working, thereby preventing oil leakage, environmental pollution and oil waste.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A lithium-ion battery oil pump includes a pump body and a housing covering the periphery of the pump body. The pump body has an inlet and an outlet that communicate with each other at its front end. An outlet pipe connector is connected to the outlet. A tee pipe is fitted around the outlet pipe connector. The tee pipe includes a first port, a second port, and a third port. The first port and the second port are interconnected and form an internal cavity. The outlet pipe connector passes through the cavity. A through hole communicating with the interior of the outlet pipe connector is provided on the outlet pipe connector. The third port communicates with the through hole and is connected to a... A pressure switch is provided, with a circuit board inside the housing, a power switch on the housing, and a lithium battery inserted outside the housing. The power switch, the lithium battery, and the pressure switch are all electrically connected to the circuit board. When the power switch is in the open state and the pressure inside the pressure switch exceeds a limit value, the pressure switch can disconnect the circuit of the circuit board and control the pump to stop working. When the power switch is in the open state and the pressure inside the pressure switch is below the limit value, the pressure switch can make the circuit of the circuit board open and allow the pump to work normally.

[0006] Furthermore, a first sealing ring is embedded in the first pipe opening, and the inner peripheral wall of the first sealing ring is tightly fitted with the outer peripheral wall of the oil outlet pipe joint; a second sealing ring is embedded in the second pipe opening, and the inner peripheral wall of the second sealing ring is tightly fitted with the outer peripheral wall of the oil outlet pipe joint.

[0007] Furthermore, the inner end of the oil outlet pipe joint is connected to the oil outlet, and the outer end of the oil outlet pipe joint is provided with a ring of stop ribs, which abut against the outer edge of the second pipe opening.

[0008] Furthermore, the outer circumference of the oil outlet pipe joint is provided with a plurality of spaced perforations, and the cavity is connected to the perforations and also to the third pipe opening.

[0009] Furthermore, the three-way pipe can rotate around the oil outlet pipe joint, thereby allowing the position of the pressure switch to be adjusted.

[0010] Furthermore, an oil inlet connector is connected to the oil inlet.

[0011] Furthermore, the first pipe opening and the second pipe opening are on the same horizontal straight line.

[0012] Furthermore, the central axis of the third port is perpendicular to the central axis of the cavity.

[0013] Furthermore, the housing comprises a left half-housing and a right half-housing.

[0014] Furthermore, a check valve filter screen is installed inside the oil inlet pipe joint.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this utility model, the lithium-ion oil pump continues to operate when the refueling nozzle is closed but the power switch is on. During this time, the oil outlet connector and pressure switch are continuously filled with oil, causing the oil pressure to rise. When the pressure inside the pressure switch exceeds a certain limit, the pressure switch disconnects the circuit board and stops the pump, preventing oil leakage due to excessive pressure. When the power switch is on and the oil pressure inside the pressure switch is below the limit, the pressure switch allows the circuit board to complete, enabling the pump to operate normally. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a lithium-ion battery oil pump according to the present invention;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of a lithium-ion battery oil pump according to the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of a lithium-ion battery oil pump according to the present invention. Figure 1 ;

[0020] Figure 4This is a schematic diagram of the exploded structure of a lithium-ion battery oil pump according to the present invention. Figure 2 . Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.

[0022] like Figures 1 to 4 As shown, a lithium-ion battery oil pump includes a pump body 1 and a housing 2 covering the outer periphery of the pump body 1. Specifically, the housing 2 includes a left half housing 24 and a right half housing 25, a design that makes the oil pump assembly very convenient. The front end of the pump body 1 is provided with an inlet 3 and an outlet 4 that communicate with each other. An inlet connector 5 is connected to the inlet 3, and the inlet connector 5 is threadedly connected to the inlet 3. A check valve filter 51 is provided inside the inlet connector 5 to prevent diesel fuel from flowing back from the pump body 1. An outlet connector 6 is connected to the outlet 4, and a tee pipe 7 is fitted around the outer periphery of the outlet connector 6. The tee pipe 7 includes a first port 71, a second port 72, and a third port 73. Specifically, the first port 71 and the second port 72 are on the same horizontal straight line. The first port 71 and the second port 72 are interconnected and form a cavity 74 inside. The oil outlet connector 6 is fitted inside the cavity 74. Specifically, the central axis of the third port 73 is perpendicular to the central axis of the cavity 74. The oil outlet connector 6 is provided with a through hole 61 that connects to the inside of the oil outlet connector 6. The third port 73 is interconnected with the through hole 61. A pressure switch 8 is connected to the third port 73.

[0023] As described above, a circuit board 21 is installed inside the housing 2, a power switch 22 is installed on the housing 2, and a lithium battery 23 is inserted outside the housing 2. The power switch 22, the lithium battery 23, and the pressure switch 8 are all electrically connected to the circuit board 21. When the power switch 22 is in the open state and the pressure inside the pressure switch 8 exceeds a certain value, the pressure switch 8 can disconnect the circuit of the circuit board 21 and control the pump body 1 to stop working. When the power switch 22 is in the open state and the pressure inside the pressure switch 8 is below the certain value, the pressure switch 8 can make the circuit of the circuit board 21 complete and allow the pump body 1 to work normally. The structural design of the pressure switch 8 can prevent diesel leakage from polluting the environment and the waste of diesel fuel.

[0024] As described above, a first sealing ring 711 is embedded in the first port 71, and the inner circumferential wall of the first sealing ring 711 is tightly fitted with the outer circumferential wall of the oil outlet pipe joint 6. A second sealing ring 721 is embedded in the second port 72, and the inner circumferential wall of the second sealing ring 721 is tightly fitted with the outer circumferential wall of the oil outlet pipe joint 6. This structural design enables a good sealing effect between the oil outlet pipe joint 6 and the tee pipe 7.

[0025] As described above, the inner end of the oil outlet connector 6 is connected to the oil outlet 4; specifically, the oil outlet connector 6 is threadedly connected to the oil outlet 4. The outer end of the oil outlet connector 6 is provided with a ring of stop ribs 62, which abuts against the outer edge of the second pipe opening 72. Specifically, the outer end of the oil outlet connector 6 can be connected to the fuel nozzle.

[0026] As described above, the outer circumference of the oil outlet pipe connector 6 is provided with a plurality of spaced perforations 61, and the cavity 74 is connected to the perforations 61 and is also connected to the third pipe port 73.

[0027] As described above, the tee tube 7 can rotate around the oil pipe connector 6, thereby allowing the pressure switch 8 to be adjusted. This structural design allows users to adjust the position of the pressure switch 8 according to their actual usage environment requirements, making it very convenient to use.

[0028] In summary, when the fuel nozzle is turned off, the pump body 1 will continue to operate while the power switch 22 is in the on state. At this time, the oil outlet pipe connector 6 connected to the oil outlet 4 and the pressure switch 8 will be continuously filled with diesel fuel, causing their oil pressure to rise. When the pressure in the pressure switch 8 exceeds the limit value, the pressure switch 8 can disconnect the circuit of the circuit board 21 and control the pump body 1 to stop working, thereby preventing oil leakage due to excessive oil pressure. When the power switch 22 is in the on state and the oil pressure in the pressure switch 8 is lower than the limit value, the pressure switch 8 can establish a circuit in the circuit board 21 and allow the pump body 1 to operate normally.

[0029] The above description is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the scope of the present utility model patent application and the description of the utility model shall still fall within the scope of the present utility model patent.

Claims

1. A lithium-ion battery oil pump, comprising a pump body and a housing covering the periphery of the pump body, characterized in that: The pump body has an inlet and an outlet that communicate with each other at its front end. An outlet pipe connector is connected to the outlet. A tee pipe is fitted around the outlet pipe connector, and the tee pipe includes a first port, a second port, and a third port. The first port and the second port are interconnected and form an internal cavity. The outlet pipe connector passes through this cavity. A through hole communicating with the interior of the outlet pipe connector is provided on the outlet pipe connector. The third port communicates with the through hole and is connected to a pressure switch. A [missing information - likely a device or structure] is installed inside the housing. The device includes a circuit board, a power switch on the housing, and a lithium battery inserted into the housing. The power switch, the lithium battery, and the pressure switch are all electrically connected to the circuit board. When the power switch is in the open state and the pressure inside the pressure switch exceeds a certain value, the pressure switch can disconnect the circuit of the circuit board and control the pump to stop working. When the power switch is in the open state and the pressure inside the pressure switch is below the certain value, the pressure switch can make the circuit of the circuit board complete and allow the pump to work normally.

2. The lithium-ion battery oil pump according to claim 1, characterized in that: The first pipe opening is provided with a first sealing ring, and the inner peripheral wall of the first sealing ring is in close contact with the outer peripheral wall of the oil outlet pipe joint. The second pipe opening is provided with a second sealing ring, and the inner peripheral wall of the second sealing ring is in close contact with the outer peripheral wall of the oil outlet pipe joint.

3. The lithium-ion battery oil pump according to claim 2, characterized in that: The inner end of the oil outlet pipe connector is connected to the oil outlet, and the outer end of the oil outlet pipe connector is provided with a ring of stop ribs, which abut against the outer edge of the second pipe opening.

4. The lithium-ion battery oil pump according to claim 3, characterized in that: The outer circumference of the oil outlet pipe joint is provided with multiple spaced perforations, and the cavity is connected to the perforations and also to the third pipe opening.

5. The lithium-ion battery oil pump according to claim 4, characterized in that: The tee can rotate around the oil outlet connector, thereby allowing the position of the pressure switch to be adjusted.

6. The lithium-ion battery oil pump according to claim 5, characterized in that: An oil inlet connector is connected to the oil inlet.

7. The lithium-ion battery oil pump according to claim 1, characterized in that: The first pipe opening and the second pipe opening are on the same horizontal straight line.

8. The lithium-ion battery oil pump according to claim 7, characterized in that: The central axis of the third port is perpendicular to the central axis of the cavity.

9. A lithium-ion battery oil pump according to claim 1, characterized in that: The housing comprises a left half-housing and a right half-housing.

10. A lithium-ion battery oil pump according to claim 1, characterized in that: The oil inlet pipe joint is equipped with a check valve filter.

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