Portable oil well pump

Abstract

The utility model discloses a portable oil well pump which comprises a main machine, an oil pumping pipe, a pump body and an oil outlet pipe, a circuit board and a battery electrically connected with the circuit board are arranged on the main machine, the oil pumping pipe is connected with the main machine, the pump body is arranged in the oil pumping pipe, and the oil outlet pipe is connected with the position, close to the main machine, of the oil pumping pipe and communicated with the oil pumping pipe. The pump body is electrically connected with the circuit board through an electric wire, an assembling structure is arranged between the oil pumping pipe and the main machine, and the oil pumping pipe is installed on the main machine through the assembling structure under the action of external force. When a product leaves a factory, the main machine and the oil pumping pipe are not assembled integrally for transportation packaging, namely the main machine and the oil pumping pipe can be transversely placed and packaged side by side, so that the product packaging length is effectively shortened, the overall packaging size of the product is reduced, the transportation cost is reduced, and product transportation is facilitated. After receiving a product, a user can assemble the main machine and the oil pumping pipe together by himself / herself, so that the pump body is electrically connected with the circuit board.

Description

Technical Field

[0001] This utility model relates to the technical field of oil pumps, and in particular to a portable oil pump. Background Technology

[0002] As is well known, a portable oil pump refers to an electronic product that is easy for users to carry and use, and is used to transfer oil such as gasoline and diesel from one container to another. A portable oil pump generally includes a main unit, an oil suction pipe, and an oil discharge pipe. The main unit contains a circuit board and a battery, the oil suction pipe contains a pump body that is electrically connected to the circuit board, the battery powers the pump body, and the circuit board controls the operation of the pump body.

[0003] Currently, the main unit of existing portable oil pumps is located at one end of the oil extraction pipe. When shipped from the factory, the main unit and the oil extraction pipe are integrated, resulting in a relatively long portable oil pump, which increases the size of the product during transportation and increases transportation costs. Utility Model Content

[0004] The main purpose of this utility model is to provide a portable oil pump to solve the problem of high transportation costs caused by the large transportation volume resulting from the integrated main unit and oil pumping pipe of existing portable oil pumps.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] A portable oil pump, comprising:

[0007] A host computer, wherein a circuit board and a battery electrically connected to the circuit board are provided on the host computer;

[0008] Oil extraction tubing, which is connected to the main unit;

[0009] The pump body is installed inside the oil extraction pipe;

[0010] And an oil outlet pipe, which is connected to and communicates with the oil extraction pipe near the main unit;

[0011] The pump body is electrically connected to the circuit board via wires. An assembly structure is provided between the oil suction pipe and the main unit. The oil suction pipe is installed on the main unit through the assembly structure under the action of external force.

[0012] Furthermore, the assembly structure includes a locking block and a locking slot adapted to the locking block, wherein the locking block is placed in the locking slot when the oil pipe is assembled with the main unit.

[0013] Furthermore, the main unit has a control cavity and a first wiring hole communicating with the control cavity. The circuit board and the battery are disposed in the control cavity. The card block is disposed on the side of the main unit near the oil extraction pipe. One end of the oil extraction pipe is provided with an adapter. The adapter has a first embedding groove and a second wiring hole communicating with the first embedding groove and the inside of the oil extraction pipe. The card groove is located on the side wall of the first embedding groove of the adapter. The wire passes through the first wiring hole and the second wiring hole.

[0014] Furthermore, there are two card slots, which are distributed on both sides of the first embedding slot;

[0015] The card block includes a connecting post connected to the host and a snap-fit ​​protrusion protruding outward from the connecting post; there are two card blocks, which are spaced apart; the snap-fit ​​protrusions on the two card blocks face opposite directions;

[0016] The connecting post is placed in the first embedding groove when the sucker pipe is assembled with the main unit, and the snap-fit ​​protrusion is placed in the snap-fit ​​groove when the sucker pipe is assembled with the main unit.

[0017] Furthermore, the adapter is provided with a partition, and the second wiring hole is located on the partition;

[0018] The wire is interference-fitted with the second wiring hole, and / or the adapter is provided with a sealing element that is interference-fitted with the wire at the position corresponding to the second wiring hole.

[0019] Furthermore, the adapter has an adapter cavity, one end of the oil sucker pipe is placed in the adapter cavity, the partition is located between the adapter cavity and the first embedded groove, and the sealing element is at least partially disposed between the partition and the oil sucker pipe; a joint structure is provided between the adapter and the oil sucker pipe, and the joint structure is located on the side of the adapter cavity away from the partition.

[0020] The engagement structure includes at least one embedded bump and a second embedded groove that mates with the embedded bump, the embedded bump being placed within the second embedded groove.

[0021] Furthermore, the adapter includes a first adapter shell and a second adapter shell, the first adapter shell and the second adapter shell are connected to form an adapter cavity and a partition, the embedded protrusion is located on the first adapter shell and / or the second adapter shell, and the number of the embedded protrusion and the second embedded groove is multiple.

[0022] Furthermore, the circuit board is located at the end of the battery away from the oil extraction pipe, and the main unit has a function switch connected to the circuit board on the end face away from the oil extraction pipe.

[0023] Furthermore, the host is provided with a power interface for connecting an external power source, the power interface is electrically connected to the circuit board, and the battery is a rechargeable battery.

[0024] Alternatively, the battery may be a dry cell battery, and the main unit may have a removable battery cover at the location corresponding to the dry cell battery.

[0025] Furthermore, the main unit is provided with a first connection terminal that is electrically connected to the circuit board, and the oil suction pipe is provided with a second connection terminal that is electrically connected to the pump body. The first connection terminal is used to electrically connect with the second connection terminal when the oil suction pipe is assembled with the main unit.

[0026] This utility model has the following beneficial effects: Compared with the prior art, this utility model sets the main unit and the oil extraction pipe as separate structures. That is, in this embodiment, the main unit and the oil extraction pipe can be transported separately from each other in the packaging. The main unit and the oil extraction pipe can be placed side-by-side in the package, effectively shortening the length of the product packaging, reducing the overall packaging volume, reducing transportation costs, and facilitating product transportation. Furthermore, by configuring an assembly structure, users can assemble the main unit and the oil extraction pipe themselves after receiving the product, and can also achieve electrical connection between the pump body and the circuit board. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is a perspective view of the present utility model;

[0029] Figure 2 This is a cross-sectional view of the present invention after the oil outlet pipe has been removed and the section is cut along the center of the oil extraction pipe.

[0030] Figure 3 for Figure 2 Enlarged view of region a in the middle;

[0031] Figure 4 This is an exploded view of the main unit and the oil extraction pipe of this utility model;

[0032] Figure 5 This is a perspective view of the main unit of this utility model;

[0033] Figure 6 This is an exploded view of the adapter and oil extraction pipe of this utility model;

[0034] Figure 7 This is an exploded view showing the main unit and the oil extraction pipe of this utility model being electrically connected via a first connecting terminal and a second connecting terminal;

[0035] Figure 8This is an exploded view of the host computer with a power interface according to this utility model. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] See attached document Figure 1 To be continued Figure 8 A portable oil pump is described in this embodiment of the present invention.

[0038] The portable oil pump includes a main unit 1, an oil suction pipe 2, a pump body 5, and an oil outlet pipe 3. The main unit 1 is equipped with a circuit board 7 and a battery 6 electrically connected to the circuit board 7. The oil suction pipe 2 is connected to the main unit 1. The pump body 5 is housed inside the oil suction pipe 2. The oil outlet pipe 3 is connected to the oil suction pipe 2 near the main unit 1 and communicates with it. The pump body 5 is electrically connected to the circuit board 7 via a wire 50. An assembly structure is provided between the oil suction pipe 2 and the main unit 1, allowing the oil suction pipe 2 to be mounted on the main unit 1 under external force.

[0039] This embodiment sets the main unit 1 and the oil extraction pipe 2 as separate structures. Specifically, the product can be shipped separately from the main unit 1 and the oil extraction pipe 2, meaning they can be folded and packaged separately. This effectively shortens the product packaging length, reduces the overall packaging volume, lowers transportation costs, and facilitates product transport. It solves the problem of high transportation costs caused by the existing portable oil pumps having the main unit 1 and oil extraction pipe 2 as a single unit. Furthermore, the assembly structure allows users to assemble the main unit 1 and oil extraction pipe 2 themselves after receiving the product, and also enables electrical connection between the pump body 5 and the circuit board 7.

[0040] Specifically, battery 6 powers circuit board 7 for user portability. The oil extraction pipe 2 and main unit 1 can be detached or non-detached via an assembly structure.

[0041] In one embodiment, the assembly structure includes a locking block 12 and a locking slot 250 adapted to the locking block 12. The locking block 12 is placed in the locking slot 250 when the sucker pipe 2 is assembled with the main unit 1. By using the locking block 12 and the locking slot 250, the sucker pipe 2 and the main unit 1 can be assembled together by the user after the product is transported to the user's hands. This structure is simple and convenient for the user to install. Of course, in other embodiments, the assembly structure can also be a screw, which is used to assemble the main unit 1 and the sucker pipe 2 together; or, the assembly structure can also be a thread, that is, the main unit 1 and the sucker pipe 2 are connected by a thread, etc.

[0042] In one embodiment, the main unit 1 has a control cavity 10 and a first wiring hole 101 communicating with the control cavity 10. The circuit board 7 and the battery 6 are disposed in the control cavity 10, and the locking block 12 is disposed on the side of the main unit 1 near the oil extraction tube 2. One end of the oil extraction tube 2 is provided with an adapter 200. The adapter 200 has a first embedding groove 240 and a second wiring hole 261 communicating with the first embedding groove 240 and the inside of the oil extraction tube 2. The locking slot 250 is located on the side wall of the first embedding groove 240 on the adapter 200, and the wire 50 passes through the first wiring hole 101 and the second wiring hole 261. The adapter 200 facilitates the configuration of the locking slot 250 to connect the oil extraction tube 2 to the main unit 1.

[0043] In one embodiment, there are two slots 250, distributed on both side walls of the first embedding groove 240. Each locking block 12 includes a connecting post 121 connected to the main unit 1 and a locking protrusion 122 protruding outward from the connecting post 121. There are two locking blocks 12, spaced apart. The locking protrusions 122 on the two locking blocks 12 face opposite directions. The connecting post 121 is placed within the first embedding groove 240 when the oil pipe 2 is assembled with the main unit 1, and the locking protrusion 122 is placed within the slots 250 when the oil pipe 2 is assembled with the main unit 1. By utilizing the connecting post 121 and the first embedding groove 240, the mating area between the adapter 200 and the main unit 1 can be increased, thereby improving the stability of the connection between the main unit 1 and the adapter 200. By using the connecting post 121, the relative positions of the snap-fit ​​protrusions 122 on the two snap-fit ​​blocks 12 can change when placed in the snap-fit ​​slot 250, and the first embedding groove 240 can provide space for the snap-fit ​​protrusions 122 on the two snap-fit ​​blocks 12 to change their relative positions, so that the snap-fit ​​protrusions 122 can be placed in the snap-fit ​​slot 250. Of course, in other embodiments, the number of snap-fit ​​blocks 12 can also be one, three, four, etc.

[0044] Specifically, the main unit 1 has at least two reinforcing posts 123 spaced between the two connecting posts 121. When the oil sucker pipe 2 is assembled with the main unit 1, the reinforcing posts 123 are placed in the first embedding groove 240, and the outer wall formed by the two reinforcing posts 123 and the two connecting posts 121 fits with the inner wall of the first embedding groove 240, so as to effectively improve the contact surface when the oil sucker pipe 2 is assembled with the main unit 1 and improve the stability of the connection between the main unit 1 and the adapter 200.

[0045] The cross-section of the snap-fit ​​protrusion 122 can be a right trapezoid or a right triangle. This means that after the snap-fit ​​protrusion 122 is placed in the slot 250, it is difficult to detach from the slot 250 even with external force, thus ensuring that the host 1 and the adapter 200 are non-detachable after assembly. In other embodiments, the cross-section of the snap-fit ​​protrusion 122 can also be an isosceles triangle or an isosceles trapezoid, etc., meaning that both opposite sidewalls of the snap-fit ​​protrusion 122 are inclined surfaces. These inclined surfaces act as guides, facilitating the placement of the snap-fit ​​protrusion 122 within the slot 250 or its detachment from the slot 250 under external force, thus achieving a detachable connection between the host 1 and the adapter 200.

[0046] In one embodiment, the adapter 200 is provided with a partition 260, and the second wiring hole 261 is located on the partition 260. The main unit 1 is assembled on the adapter 200, and at this time, the first embedding groove 240 can also be used to store the wire.

[0047] The wire 50 is interference-fitted with the second wiring hole 261, and / or the adapter 200 is provided with a sealing element 9 at the position corresponding to the second wiring hole 261 that is interference-fitted with the wire 50. In this way, the control chamber 10 can be isolated from the inside of the oil extraction pipe 2, preventing oil from entering the control chamber 10 from the oil extraction pipe 2.

[0048] In one embodiment, the adapter 200 has an adapter cavity 230, one end of the oil extraction tube 2 is placed in the adapter cavity 230, a partition 260 is located between the adapter cavity 230 and the first embedding groove 250, and a sealing element 9 is at least partially disposed between the partition 260 and the oil extraction tube 2. An electric wire 50 passes through the sealing element 9. A connecting structure is provided between the adapter 200 and the oil extraction tube 2, located on the side of the adapter cavity 230 away from the partition 260. The sealing element 9 can be effectively fixed by the compression between the main unit 1 and the oil extraction tube 2, preventing the sealing element 9 from falling off the electric wire 50 during use and improving the sealing efficiency of the sealing element 9. Specifically, the sealing element 9 is made of soft rubber. The connecting structure is used to position the relative positions of the adapter 200 and the oil extraction tube 2, assembling the oil extraction tube 2 and the main unit 1 adapter 200 together.

[0049] Specifically, the joining structure includes at least one embedded protrusion 23 and a second embedded groove 221 that mates with the embedded protrusion 23, with the embedded protrusion 23 placed within the second embedded groove 221. Alternatively, the embedded protrusion 23 is disposed on the adapter 200, and the second embedded groove 221 is located on the sucker pipe 2; or, the embedded protrusion is disposed on the sucker pipe 2, and the second embedded groove 221 is located on the adapter 200.

[0050] Of course, in other embodiments, refer to the appendix. Figure 6 and attached Figure 7 The main unit 1 is provided with a first connection terminal 72 that is electrically connected to the circuit board 7, and the oil suction pipe 2 is provided with a second connection terminal 502 that is electrically connected to the pump body 5. The first connection terminal 72 is used to electrically connect the oil suction pipe 2 and the main unit 1 when they are assembled. At the time of shipment, the main unit 1 and the oil suction pipe 2 can also be folded to reduce the packaging volume. With the assembly structure, after the user receives the product, the oil suction pipe 2 and the main unit 1 can be assembled as one unit, and the pump body 5 and the circuit board 7 can be electrically connected by using the first connection terminal 72 and the second connection terminal 502.

[0051] Specifically, the first connecting terminal 72 and the second connecting terminal 502 can be contact points, i.e., one is a conductive post and the other is a spring probe. Alternatively, the first connecting terminal 72 and the second connecting terminal 502 can also be a contact and a conductive spring, respectively; or, the first connecting terminal 72 and the second connecting terminal 502 can be a male connector and a female connector used in conjunction with a male connector, etc.

[0052] In an embodiment having a first connection terminal 72 and a second connection terminal 502, the first connection terminal 72 is disposed on the outside of the host 1 and is located next to the card block 12.

[0053] The wires are divided into a first conductive wire 71 and a second conductive wire 501. A first connecting terminal 72 is connected to the circuit board 7 via the first conductive wire 71, which passes through the first wiring hole 101. A second connecting terminal 502 is electrically connected to the pump body 5 via the second conductive wire 501, which passes through the second wiring hole 261. In this embodiment, the first connecting terminal 72 and the second connecting terminal 502 are a male connector and a female connector used in conjunction with the male connector, respectively. After receiving the product, the user can first connect the first connecting terminal 72 and the second connecting terminal 502, and then assemble the main unit 1 onto the adapter 200. At this time, the first embedding groove 240 can also be used to accommodate the first connecting terminal 72 and the second connecting terminal 502.

[0054] In one embodiment, the adapter 200 includes a first adapter shell 210 and a second adapter shell 220. The first adapter shell 210 and the second adapter shell 220 are connected to form an adapter cavity 230 and a partition 260. An embedded protrusion 23 is located on the first adapter shell 210 and / or the second adapter shell 220. There are multiple embedded protrusions 23 and second embedded grooves 221. The first adapter shell 210 and the second adapter shell 220 are connected to fix the oil suction pipe 2 to the adapter 200. Of course, in other embodiments, the first adapter shell 210 and the second adapter shell 220 can also be connected by screws, clips, or ultrasonic pressing.

[0055] In one embodiment, the oil extraction pipe 2 protrudes on the side wall near the circuit board 7 to form a connecting pipe 21. The adapter 200 has a clearance hole (not shown in the figure) that communicates with the adapter cavity 230. The connecting pipe 21 passes through the clearance hole, and the oil outlet pipe 3 is connected to the connecting pipe 21. By configuring the connecting pipe 21, it is convenient to connect and communicate between the oil extraction pipe 2 and the oil outlet pipe 3.

[0056] In one embodiment, one end of the oil outlet pipe 3 is sleeved on the outside of the connecting pipe 21 and pressed by a clamping ring to improve the stability of the connection between the oil outlet pipe 3 and the connecting pipe 21.

[0057] In one embodiment, the outer wall of the connecting pipe 21 is provided with a locking groove 22, and the inner wall of the clamping ring is provided with a clamping protrusion corresponding to the position of the locking groove 22. The clamping protrusion is interference-fitted with the outer wall of the oil outlet pipe 3 to press part of the oil outlet pipe 3 into the locking groove 22, so as to stably fix the oil outlet pipe 3 on the connecting pipe 21.

[0058] In one embodiment, the circuit board 7 is located at the end of the battery 6 away from the oil extraction pipe 2. The main unit 1 has a function switch 11 connected to the circuit board 7 on the end face away from the oil extraction pipe 2, so as to avoid the function switch 11 affecting the user's grip on the main unit 1 when the main unit 1 is used as a user handle. Moreover, when the user operates, the function switch 11 can control the start and stop of the pump body 5 via the circuit board 7, so as to allow the user to control the oil extraction.

[0059] In one embodiment, the main unit 1 is provided with a power interface 73 for connecting to an external power source. The power interface 73 is electrically connected to the circuit board 7, and the battery 6 is a rechargeable battery 6. By connecting to an external power source through the power interface 73, the battery 6 can be charged via the circuit board 7, thereby improving the service life of the portable oil pump in this embodiment.

[0060] In one embodiment, the battery 6 is a dry cell battery. The main unit 1 has a removable battery cover at the position corresponding to the dry cell battery, so that when the battery 6 is depleted, the battery cover can be removed for easy replacement by the user. Specifically, in this embodiment, there are two batteries 6, arranged sequentially away from the oil extraction pipe 2. In this state, the height of the main unit 1 is relatively high. The main unit 1 and the oil extraction pipe 2 are integrated, and the outer wall of the main unit 1 is easy for the user to hold, so that the user can insert the oil extraction pipe 2 into the oil container. The main unit 1 also makes it easy for the user to pick up the product, making it convenient for the user to use. Of course, in other embodiments, the number of dry cell batteries can also be one, three, four, etc., and when there are multiple dry cell batteries, they can be arranged side by side, etc.

[0061] In one embodiment, the host 1 includes a first housing 14 and a second housing 15 connected to the first housing 14 to form a control cavity 10. Dividing the host 1 into the first housing 14 and the second housing 15 facilitates the manufacturing of the host 1 and the placement of the circuit board 7 and the battery 6 within the control cavity 10.

[0062] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0063] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A portable oil pump, characterized in that, include: A host computer, wherein a circuit board and a battery electrically connected to the circuit board are provided on the host computer; Oil extraction tubing, which is connected to the main unit; The pump body is installed inside the oil extraction pipe; And an oil outlet pipe, which is connected to and communicates with the oil extraction pipe near the main unit; The pump body is electrically connected to the circuit board via wires. An assembly structure is provided between the oil suction pipe and the main unit. The oil suction pipe is installed on the main unit through the assembly structure under the action of external force.

2. The portable oil pump according to claim 1, characterized in that, The assembly structure includes a locking block and a locking slot adapted to the locking block. The locking block is placed in the locking slot when the oil pipe is assembled with the main unit.

3. The portable oil pump according to claim 2, characterized in that, The main unit has a control cavity and a first wiring hole communicating with the control cavity. The circuit board and the battery are disposed in the control cavity. The card block is disposed on the side of the main unit near the oil extraction tube. One end of the oil extraction tube is provided with an adapter. The adapter has a first embedding groove and a second wiring hole communicating with the first embedding groove and the inside of the oil extraction tube. The card groove is located on the side wall of the first embedding groove of the adapter. The wire passes through the first wiring hole and the second wiring hole.

4. The portable oil pump according to claim 3, characterized in that, The number of card slots is two, and they are distributed on the two side walls of the first embedding slot; The card block includes a connecting post connected to the host and a snap-fit ​​protrusion protruding outward from the connecting post; there are two card blocks, which are spaced apart; the snap-fit ​​protrusions on the two card blocks face opposite directions; The connecting post is placed in the first embedding groove when the sucker pipe is assembled with the main unit, and the snap-fit ​​protrusion is placed in the snap-fit ​​groove when the sucker pipe is assembled with the main unit.

5. The portable oil pump according to claim 3, characterized in that, The adapter is provided with a partition, and the second wiring hole is located on the partition; The wire is interference-fitted with the second wiring hole, and / or the adapter is provided with a sealing element that is interference-fitted with the wire at the position corresponding to the second wiring hole.

6. The portable oil pump according to claim 5, characterized in that, The adapter has an adapter cavity, one end of the oil sucker pipe is placed in the adapter cavity, the partition is located between the adapter cavity and the first embedded groove, and the sealing element is at least partially disposed between the partition and the oil sucker pipe. A joint structure is provided between the adapter and the oil extraction pipe, and the joint structure is located on the side of the adapter cavity away from the partition. The engagement structure includes at least one embedded bump and a second embedded groove that mates with the embedded bump, the embedded bump being placed within the second embedded groove.

7. The portable oil pump according to claim 6, characterized in that, The adapter includes a first adapter shell and a second adapter shell. The first adapter shell and the second adapter shell are connected to form an adapter cavity and a partition. The embedded protrusion is located on the first adapter shell and / or the second adapter shell. There are multiple embedded protrusions and second embedded slots.

8. The portable oil pump according to any one of claims 1-7, characterized in that, The circuit board is located at the end of the battery away from the oil extraction pipe, and the main unit has a function switch connected to the circuit board on the end face away from the oil extraction pipe.

9. The portable oil pump according to any one of claims 1-7, characterized in that, The host is provided with a power interface for connecting an external power source. The power interface is electrically connected to the circuit board. The battery is a rechargeable battery. Alternatively, the battery may be a dry cell battery, and the main unit may have a removable battery cover at the location corresponding to the dry cell battery.

10. The portable oil pump according to any one of claims 1-7, characterized in that, The main unit is provided with a first connection terminal that is electrically connected to the circuit board, and the oil suction pipe is provided with a second connection terminal that is electrically connected to the pump body. The first connection terminal is used to electrically connect with the second connection terminal when the oil suction pipe is assembled with the main unit.

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