Electric oil well pump with simple structure and one-way air valve

Abstract

The electric oil well pump comprises a control box and an electromagnetic exhaust valve, a communication pipeline and a control panel are arranged on the control box, one end of the communication pipeline is connected with an oil pumping pipe, the other end of the communication pipeline is connected with an oil outlet pipe, and an air inlet and an air inlet channel are formed in the control box; the electromagnetic exhaust valve is provided with an air outlet pipe and an air inlet pipe, the air outlet pipe is installed in the air inlet, when the power-on key is pressed down, the valve is closed under the electromagnetic force action of the electromagnetic exhaust valve, then the air inlet is closed, liquid can be prevented from overflowing, and at the moment, the pump body can normally pump and convey liquid; when the stop key is pressed down, the electromagnetic force disappears, the air outlet pipe and the air inlet pipe are in a ventilation state, the communicating pipeline is communicated with the outside for exhausting, at the moment, external air is exhausted into the communicating pipeline to damage the siphon effect of the pipeline, in this way, remaining liquid can be removed, liquid backflow is effectively prevented, and the safety and normal functions of the system are guaranteed.

Description

Technical Field

[0001] The utility model relates to a pump, in particular to an oil well pump. Background Art

[0002] Patent document CN218620333U discloses an electric oil pump with a one-way air valve. The technical solution employed is as follows: a control box is provided with a connecting pipe and a control panel. One end of the connecting pipe is connected to the oil extraction pipe, and the other end is connected to the oil outlet pipe. The control box is provided with an air inlet connected to the connecting pipe and an air inlet pipe extending to the bottom of the control box. A valve body is mounted on the outer side of the air inlet. The valve body has an air inlet chamber at its upper end and an air outlet chamber at its lower end. A connecting passage is provided between the air inlet and air outlet chambers. A sealing ball is movably mounted in the air outlet chamber to seal the opening of the connecting passage. During operation, liquid enters the air outlet chamber, pushing the sealing ball upward until it blocks the connecting passage, preventing liquid from escaping the valve body. However, this oil pump has a complex structure, and liquid only pushes the sealing ball after entering the air outlet chamber. In actual use, a small amount of liquid still overflows into the control box, causing internal damage to the control box. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an electric oil pump with a simple structure and a one-way air valve.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] 14. The oil pump of claim 13, wherein the air outlet is located adjacent to the oil pumping station and the outlet is connected to the oil pumping station via a through-hole in the oil pumping station. The air outlet is located adjacent to the oil pumping station and the outlet is connected to the oil pumping station via a through-hole in the oil pumping station.

[0006] A liquid storage cavity is provided in the liquid storage box, and a through hole communicating with the liquid storage cavity is provided on the lower side of the liquid storage box. After assembly, the air inlet pipe is inserted into the through hole.

[0007] A box cover is installed on the top of the liquid storage box, and a vent hole communicating with the liquid storage cavity is provided on the box cover.

[0008] The electromagnetic exhaust valve includes a valve seat, the air outlet pipe is located at one end of the valve seat, the air inlet pipe is located at the other end of the valve seat, and the axis of the air outlet pipe and the axis of the air inlet pipe are perpendicular to each other.

[0009] The control box is provided with a battery cavity electrically connected to the control board.

[0010] A plug is provided at the bottom of the battery cavity, and after assembly, the plug is inserted into the air inlet.

[0011] A sealing ring is installed between the plug and the air inlet.

[0012] An air intake cavity with one end open is provided at the bottom of the control box along the width direction, and a communication hole communicating with the air intake duct is provided on the inner side wall of the air intake cavity.

[0013] The beneficial effects of the utility model are:

[0014] (1) The utility model installs a solenoid exhaust valve of a one-way air valve on the air inlet of the control box. The solenoid exhaust valve is provided with an air outlet pipe and an air inlet pipe connected with each other in an inner cavity. The air outlet pipe is installed in the air inlet, and a liquid storage box is installed at the opening of the air inlet pipe. When the power button is pressed, the electromagnetic force of the solenoid exhaust valve causes the valve to close, thereby sealing the air inlet, thereby preventing liquid from overflowing. At this time, the pump body can pump and infuse liquid normally; when the stop button is pressed, the electromagnetic force disappears, and the air outlet pipe and the air inlet pipe are in a ventilated state, so that the connecting pipe is connected to the outside for exhaust. At this time, external air is discharged into the connecting pipe to destroy the pipe siphon effect. This not only removes the remaining liquid, but also effectively prevents liquid backflow, thereby ensuring the safety and normal function of the system.

[0015] (2) The utility model adopts an electrically controlled electromagnetic exhaust valve. Compared with the prior art, the utility model only needs one electromagnetic exhaust valve to realize the function of a one-way air valve. It is not only simple in structure and easy to assemble, but also can block the air inlet at the moment the oil pumping is started, further preventing liquid from overflowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a structural exploded view of the utility model;

[0019] Figure 3 It is a partial structural exploded view of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0021] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0022] Some embodiments of the present invention are described below with reference to the accompanying drawings.

[0023] Reference Figures 1 to 3 , an electric oil pump with a simple structure and a one-way air valve comprises a control box 1, the control box 1 is provided with a communicating pipe 11 and a control board, one end of the communicating pipe 11 is connected to an oil extraction pipe 2, and the other end is connected to an oil outlet pipe 3, a pump body 4 electrically connected to the control board is installed in the oil extraction pipe 2, a screw cover 5 is rotatably installed at the bottom of the control box 1, an air inlet 12 connected to the communicating pipe 11 and an air inlet 13 running through the bottom of the control box 1 are provided in the control box 1; an electromagnetic exhaust valve 6 electrically connected to the control board is installed in the control box 1, the electromagnetic exhaust valve 6 is provided with an outlet pipe 61 and an air inlet pipe 62 connected with the inner cavity, after assembly, the air outlet pipe 61 is located in the air inlet 12, and a liquid storage box 7 is installed at the opening of the air inlet pipe 62. The present invention adopts an electrically controlled electromagnetic exhaust valve 6. Compared with the existing technology, the present application only needs one electromagnetic exhaust valve 6 to realize the function of a one-way air valve. It is not only simple in structure and easy to assemble, but also can block the air inlet at the moment the oil pumping is started, further preventing liquid from overflowing.

[0024] The present invention installs a solenoid exhaust valve 6, which functions as a one-way air valve, on the air inlet 12 of the control box 1. The solenoid exhaust valve 6 includes a valve seat 63, an outlet pipe 61 located at one end of the valve seat 63, and an inlet pipe 62 located at the other end of the valve seat 63. The axis of the outlet pipe 61 and the axis of the inlet pipe 62 are perpendicular to each other. In this embodiment, the solenoid exhaust valve 6 can be a commercially available air valve, air pump, or solenoid valve. A coil is installed on the valve seat 63, and a valve core is installed in the inner cavity of the solenoid exhaust valve 6. When the coil is energized, it generates electromagnetic force to control the opening or closing of the valve.

[0025] Specifically, when the power button is pressed, the electromagnetic force of the electromagnetic exhaust valve 6 causes the valve to close, thereby sealing the air inlet 12, thus preventing the liquid from overflowing. At this time, the pump body can pump and infuse liquid normally; when the stop button is pressed, the electromagnetic force disappears, and the valve core springs open under the action of its own spring structure, and the air outlet pipe 61 and the air inlet pipe 62 are in a ventilated state, so that the connecting pipe 11 is connected to the outside world for exhaust. At this time, the external air is discharged into the connecting pipe 11 to destroy the siphon effect of the pipe, because the siphon is based on the liquid pressure difference to maintain the continuous flow of the liquid, and the exhaust changes the pressure state in the pipe. This not only removes the remaining liquid, but also effectively prevents the liquid from flowing back, ensuring the safety and normal function of the system.

[0026] The liquid storage box 7 is provided with a liquid storage cavity, and the lower side of the liquid storage box 7 is provided with a through hole 71 connected to the liquid storage cavity. After assembly, the air inlet pipe 62 is inserted into the through hole 71. A box cover 72 is installed on the top of the liquid storage box 7, and the box cover 72 is provided with an air vent 73 connected to the liquid storage cavity. When the power is cut off, the pump body stops working, and there is residual liquid in the connecting pipe 11, which flows back to the oil extraction pipe. At this time, the air outlet pipe 61 and the air inlet pipe 62 are in a ventilated state, and a part of the liquid will flow into the air inlet 12, thereby being stored in the liquid storage box 7, and then flow back to the oil extraction pipe through the electromagnetic exhaust valve channel, further preventing liquid overflow.

[0027] The control box 1 is provided with a battery cavity 8 electrically connected to the control board. The battery cavity can be installed with a lithium battery, low voltage DC, simple and safe to use, and easy to replace.

[0028] The bottom of the battery chamber 8 is provided with a plug, which is inserted into the air inlet 13 after assembly. A sealing ring 14 is installed between the plug and the air inlet 13 to effectively prevent liquid from flowing into the control box.

[0029] An air intake cavity 15 with an open end is provided at the bottom of the control box 1 along its width. A connecting hole 16 is provided on the inner wall of the air intake cavity 15, communicating with the air intake duct 13. During the pumping process, the air pressure inside the oil barrel is connected to the external air pressure, maintaining pressure balance inside and outside the barrel, thereby preventing deformation of the barrel during the pumping process.

[0030] In this utility model, the term "plurality" refers to two or more, unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items. Terms such as "install," "connect," "connect," and "fix" should be understood broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0031] It should be noted that when an element is referred to as being "assembled to," "mounted to," "fixed to," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0032] Throughout this specification, terms such as "one embodiment," "some embodiments," or "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. An electric oil pump with a simple structure and a one-way air valve, comprising a control box (1), wherein the control box (1) is provided with a connecting pipe (11) and a control board, wherein one end of the connecting pipe (11) is connected to an oil pumping pipe (2), and the other end is connected to an oil outlet pipe (3), wherein a pump body (4) electrically connected to the control board is installed in the oil pumping pipe (2), and a screw cover (5) is rotatably installed at the bottom of the control box (1), characterized in that The control box (1) is provided with an air inlet (12) connected to the communication pipe (11) and an air inlet duct (13) running through the bottom of the control box (1); the control box (1) is provided with an electromagnetic exhaust valve (6) electrically connected to the control board, and the electromagnetic exhaust valve (6) is provided with an air outlet pipe (61) and an air inlet pipe (62) connected to the inner cavity. After assembly, the air outlet pipe (61) is located in the air inlet (12), and a liquid storage box (7) is installed at the opening of the air inlet pipe (62).

2. The electric oil pump with a simple structure and a one-way air valve according to claim 1 is characterized in that A liquid storage cavity is provided in the liquid storage box (7), and a through hole (71) communicating with the liquid storage cavity is provided on the lower side of the liquid storage box (7). After assembly, the air inlet pipe (62) is inserted into the through hole (71).

3. The electric oil pump with a simple structure and a one-way air valve according to claim 2 is characterized in that A box cover (72) is installed on the top of the liquid storage box (7), and a vent hole (73) communicating with the liquid storage cavity is provided on the box cover (72).

4. The electric oil pump with a simple structure and a one-way air valve according to claim 1 is characterized in that The electromagnetic exhaust valve (6) includes a valve seat (63), the outlet pipe (61) is located at one end of the valve seat (63), the inlet pipe (62) is located at the other end of the valve seat (63), and the axis of the outlet pipe (61) and the axis of the inlet pipe (62) are perpendicular to each other.

5. The electric oil pump with a simple structure and a one-way air valve according to claim 1 is characterized in that The control box (1) is provided with a battery cavity (8) electrically connected to the control board.

6. The electric oil pump with a simple structure and a one-way air valve according to claim 5 is characterized in that A plug is provided at the bottom of the battery cavity (8), and after assembly, the plug is inserted into the air inlet (13).

7. The electric oil pump with a simple structure and a one-way air valve according to claim 6 is characterized in that A sealing ring (14) is installed between the plug and the air inlet (13).

8. The electric oil pump with a simple structure and a one-way air valve according to claim 1 is characterized in that An air intake cavity (15) with one end open is provided at the bottom of the control box (1) along the width direction, and a communication hole (16) communicating with the air intake duct (13) is provided on the inner side wall of the air intake cavity (15).

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