Anti-siphon anti-overflow oil well pump structure

Abstract

The utility model relates to the technical field of oil pumps, in particular to an anti-siphon and anti-overflow oil well pump structure which comprises an oil pump, an oil inlet pipe, a main flow channel assembly, a control box, an exhaust backflow channel assembly and an oil outlet pipe. The main flow channel assembly comprises an input channel, an output channel, an exhaust port and a sealing port; the exhaust backflow channel assembly comprises an exhaust valve, a pipeline connector, an exhaust pipe and an exhaust backflow channel, the exhaust valve is arranged in the exhaust port, the pipeline connector is arranged above the exhaust valve, one end of the exhaust pipe is connected with the pipeline connector, and the other end of the exhaust pipe is connected with the exhaust backflow channel. According to the oil well pump, the double-runner coupling design structure is adopted, the dynamic pressure balance cavity is formed in the main runner, the exhaust outlet is led to the outlet of the oil barrel, in the oil pumping process, oil generated by leakage can flow back into the oil barrel again through dynamic compensation, and the phenomena of oil leakage and siphonage of the oil well pump are effectively relieved.

Description

Technical Field

[0001] This application relates to the field of oil pump technology, and more specifically, to an anti-siphon and anti-overflow oil pump structure. Background Technology

[0002] The main function of an oil pump is to extract gasoline or diesel from oil drums into fuel equipment for vehicles, ships, or machinery for operation. It can also extract fuel from the fuel tanks of machinery to facilitate subsequent maintenance and repair operations by the operator. Portable oil pumps are widely used in various scenarios.

[0003] Currently, most portable oil pumps on the market have a flow channel structure that is integrated with the pump casing. Their component structures are complex, resulting in complicated manufacturing and assembly processes and inconvenient operation. Furthermore, the flow channel of existing portable oil pumps is equipped with vent valves, which have complex structures and require high precision in their components, leading to oil leakage and siphoning phenomena.

[0004] The existing oil pump's exhaust structure is equipped with a one-way exhaust valve, which has a certain risk of sealing failure. Moreover, the exhaust channel is connected to the liquid pressure flow channel. Once the exhaust valve fails, the liquid will directly enter the controller through the exhaust channel or even flow into the external environment, contaminating and damaging the internal control components and the environment, causing control failure and environmental pollution, and the product will be unable to continue to work. In addition, when the oil outlet is lower than the oil surface, even if the oil pump has stopped working, the oil will still flow out continuously through the oil outlet under the action of gravity. Utility Model Content

[0005] This application provides an anti-siphon and anti-overflow oil pump structure, which adopts a dual-flow-channel coupling design to lead the exhaust outlet to the oil tank outlet, so that the leaked oil returns to the inside of the oil tank.

[0006] To achieve the above objectives, this application provides an anti-siphon and anti-overflow oil pump structure, including an oil pump, an oil inlet pipe, a main flow channel assembly, a control box, an exhaust return channel assembly, and an oil outlet pipe. The control box includes a housing, a battery assembly, and a control board. The main flow channel assembly is located below the housing and communicates with the interior of the housing. The main flow channel assembly includes an input channel, an output channel, an exhaust port, and a sealing port. One end of the oil inlet pipe is connected to the oil pump via a first connecting kit, and the other end is connected to the input channel via a second connecting kit. The oil outlet pipe is connected to the output channel via a third connecting kit. The exhaust return channel assembly is located inside the housing, below the control board. The exhaust return channel assembly includes an exhaust valve, a pipe connector, an exhaust pipe, and an exhaust return channel. The exhaust valve is located inside the exhaust port, the pipe connector is located above the exhaust valve, one end of the exhaust pipe is connected to the pipe connector, and the other end is connected to the exhaust return channel. The exhaust return channel is located below the housing.

[0007] Further, the battery assembly comprises a battery cover, a battery and an upper shell, wherein: the upper shell covers the upper part of the inside of the shell; the battery is arranged in the inside of the upper shell; the battery cover covers the upper part of the battery and forms a battery placing chamber together with the upper shell.

[0008] Further, the control board is arranged in the inside of the other side of the upper shell and is electrically connected with the battery.

[0009] Further, one end of the exhaust backflow channel is arranged in the inside of the shell and is connected with the exhaust pipe, and the other end is arranged outside the lower part of the shell and is connected with the barrel opening of the oil barrel.

[0010] Further, the inside of the sealing port is provided with a sealing plug sleeve, and the sealing plug sleeve is arranged in the inside of the shell.

[0011] Further, the first connecting sleeve assembly, the second connecting sleeve assembly and the third connecting sleeve assembly each comprise a connecting sleeve, a sleeve pipe and a sealing ring.

[0012] Further, the outside of the second connecting sleeve assembly is provided with a nut connecting piece for fixed connection with the barrel opening of the oil barrel.

[0013] Further, the exhaust valve is a one-way soft rubber exhaust valve.

[0014] The anti-siphon and anti-overflow oil pumping structure provided by the application has the following beneficial effects:

[0015] The anti-siphon and anti-overflow oil pumping structure provided by the application has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments illustrated in the drawings provide explanations of the application and do not constitute an improper limitation of the application. In the drawings:

[0017] Figure 1 is a schematic view of the anti-siphon and anti-overflow oil pumping structure provided by the embodiment of the application;

[0018] Figure 2 is an internal explosion schematic view of the anti-siphon and anti-overflow oil pumping structure provided by the embodiment of the application;

[0019] Figure 3 is a sectional view of the main flow channel of the anti-siphon and anti-overflow oil pumping structure provided by the embodiment of the application;

[0020] Figure 4 is a sectional view of the exhaust backflow channel of the anti-siphon and anti-overflow oil pump structure provided according to the embodiments of the present application;

[0021] In the figure: 1 - oil inlet pipe, 2 - main flow channel assembly, 21 - input channel, 22 - output channel, 23 - exhaust port, 24 - sealing port, 241 - sealing plug sleeve, 3 - control box, 31 - shell, 32 - battery assembly, 321 - battery cover, 322 - battery, 323 - upper shell, 33 - control board, 4 - exhaust backflow channel assembly, 41 - exhaust valve, 42 - pipe joint, 43 - exhaust pipe, 44 - exhaust backflow channel, 5 - oil outlet pipe, 6 - connecting sleeve, 7 - sleeve pipe, 8 - sealing ring, 9 - nut connecting piece, 10 - oil pump. DETAILED DESCRIPTION

[0022] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without making creative efforts should belong to the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] And, the above-mentioned partial terms can be used to represent other meanings in addition to the orientation or positional relationship, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0026] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] As shown in Figures 1-4 The present application provides an anti-siphon anti-overflow oil pump structure, which comprises an oil pump 10, an oil inlet pipe 1, a main flow channel assembly 2, a control box 3, an exhaust backflow channel assembly 4 and an oil outlet pipe 5, wherein: the control box 3 comprises a shell 31, a battery assembly 32 and a control panel 33; the main flow channel assembly 2 is arranged below the shell 31 and communicates with the inside of the shell 31; the main flow channel assembly 2 comprises an input channel 21, an output channel 22, an exhaust port 23 and a sealing port 24; one end of the oil inlet pipe 1 is connected with the oil pump 10 through a first connecting sleeve, and the other end is connected with the input channel 21 through a second connecting sleeve; the oil outlet pipe 5 is connected with the output channel 22 through a third connecting sleeve; the exhaust backflow channel assembly 4 is arranged inside the shell 31 and below the control panel 33; the exhaust backflow channel assembly 4 comprises an exhaust valve 41, a pipe joint 42, an exhaust pipe 43 and an exhaust backflow channel 44, the exhaust valve 41 is arranged inside the exhaust port 23, the pipe joint 42 is arranged above the exhaust valve 41, one end of the exhaust pipe 43 is connected with the pipe joint 42, and the other end is connected with the exhaust backflow channel 44, and the exhaust backflow channel 44 is arranged below the shell 31.

[0029] Specifically, the anti-siphon and anti-overflow oil pump structure provided by the embodiments of the present application is mainly used for pumping gasoline or diesel from an oil drum or an oil tank. The oil pump 10 and the oil inlet pipe 1 are inserted into the inside of the oil drum, the oil inlet pipe 1 is connected with the oil pump 10 through the first connecting kit, and the oil pump 10 is below the oil surface in the oil drum. The main flow channel assembly 2 is equivalent to a three-way structure assembly and is embedded in the shell 31 below the control box 3. The input channel 21 is arranged below the shell 31 and is connected with the oil inlet pipe 1 through the second connecting kit. The output channel 22 is arranged at the side of the shell 31 and is connected with the oil outlet pipe 5 through the third connecting kit. The exhaust port 23 and the sealing port 24 extend into the inside of the shell 31. The exhaust port 23 is used for abutting against the exhaust backflow channel assembly 4 and is used for exhausting and backflowing oil. The sealing port 24 is used for adjusting the pressure in the channel and dissipating heat. The exhaust backflow channel assembly 4 includes an exhaust valve 41, a pipeline joint 42, an exhaust pipe 43, and an exhaust backflow channel 44. The exhaust valve 41 is arranged in the exhaust port 23. The pipeline joint 42 is arranged above the exhaust valve 41. One end of the exhaust pipe 43 is connected with the pipeline joint 42, and the other end of the exhaust pipe 43 is connected with the exhaust backflow channel 44. The exhaust backflow channel 44 is arranged below the shell 31. The control box 3 is used for power supply and control. When pumping oil, the oil pump 10 is started through the control box 3. The oil in the oil drum flows in the main flow channel assembly 2, that is, enters the input channel 21 through the oil inlet pipe 1, and then flows out through the output channel 22 and the oil outlet pipe 5. The oil outlet pipe 5 is subsequently connected with an oil gun or other oil outlet device to realize oil pumping. If the exhaust valve 41 fails to seal or other oil leakage occurs during the oil pumping process, the leaked oil enters the exhaust backflow channel 44 through the exhaust valve 41 and the exhaust pipe 43, and then flows back to the oil drum along the exhaust backflow channel 44, and does not directly leak into the inside of the control box 3 to affect the control system and other structures of the oil pump.

[0030] Further, the battery assembly 32 includes a battery cover 321, a battery 322, and an upper shell 323. The upper shell 323 covers the top of the inside of the shell 31. The battery 322 is arranged in the inside of the upper shell 323. The battery cover 321 covers the top of the battery 322 and forms a battery placement bin together with the upper shell 323. The battery assembly 32 is arranged in the upper half of the control box 3 and is mainly used for placing the battery 322 and supplying power to various structures outside. The battery placement bin is formed above the shell 31 and is used for placing the battery 322. According to actual conditions, a charging structure can be arranged to charge the battery 322.

[0031] Further, the control panel 33 is arranged in the inside of the other side of the upper shell 323 and is electrically connected with the battery 322. The control panel 33 is arranged on one side of the battery placement bin and is provided with a control button for starting and stopping the oil pump 10 and controlling the working state of the oil pump 10.

[0032] Further, one end of the exhaust gas return channel 44 is located inside the housing 31 and connected with the exhaust pipe 43, and the other end is located outside the housing 31 below and connected with the barrel opening of the oil drum. The exhaust gas return channel 44 is mainly used to connect with the oil drum, so that the leaked oil returns to the inside of the oil drum. The exhaust gas return channel 44 is arranged below the housing 31 as a whole, and can be integrally formed with the housing 31 according to actual conditions, and the lower end is directly connected with the barrel opening of the oil drum, or a hole is opened below the bottom end of the housing 31, the upper end of the exhaust gas return channel 44 is inserted into the inside of the housing 31 and sealedly connected, and the lower end extends to the outside of the housing 31 and is connected with the barrel opening of the oil drum. When the exhaust valve 41 fails or the oil in the main flow channel leaks, the leaked oil will enter the exhaust gas return channel 44 through the exhaust valve 41, the pipeline joint 42 and the exhaust pipe 43 in turn, and flow back to the inside of the oil drum through the exhaust gas return channel 44, preventing the oil leakage from affecting the operation of the control system.

[0033] Further, the inside of the sealing port 24 is provided with a sealing plug sleeve 241, which is arranged in the inside of the housing 31. The sealing plug sleeve 241 is mainly used to adjust the air flow at the sealing port 24, maintain the balance of the pressure inside and outside the main flow channel, prevent damage or failure of the sealing assembly due to pressure difference, and also dissipate heat to prevent the equipment from being damaged due to overheating of the oil flow.

[0034] Further, the first, second and third connection sleeve assemblies are each composed of a connection sleeve 6, a sleeve pipe 7 and a sealing ring 8. The first and second connection sleeve assemblies are used for connecting the two ends of the oil inlet pipe 1, and the third connection sleeve assembly is used for connecting the oil outlet pipe 5. The connection sleeve assembly adopts the connection structure of the connection sleeve 6, the sleeve pipe 7 and the sealing ring 8, so that the oil inlet and outlet pipes 5 are more stable in connection with the channel, preventing oil leakage.

[0035] Further, the second connection sleeve assembly is externally provided with a nut connection piece 9 for fixed connection with the barrel opening of the oil drum. The nut connection piece 9 is arranged at the connection between the input channel 21, the exhaust gas return channel 44 and the barrel opening of the oil drum, and is used for docking with the oil drum. The barrel opening is provided with threads, and the input channel 21 and the exhaust gas return channel 44 are screwed and fixed on the barrel opening through the nut connection piece 9. This not only enables the oil inlet pipe 1 and the oil pump 10 to be smoothly inserted into the inside of the oil drum, but also enables the leaked oil in the exhaust gas return channel 44 to return to the oil drum, ensuring the stability and reliability of the oil pumping process.

[0036] Further, the exhaust valve 41 is a one-way soft rubber exhaust valve. When the oil pump 10 stops working, the oil in the main flow channel will cause negative pressure in the flow passage due to gravity, at this time the atmospheric pressure outside the exhaust valve 41 will be greater than the negative pressure inside, the exhaust valve 41 will open to let gas into the flow passage, which can avoid the flow passage from generating siphon phenomenon, and when the oil pump 10 starts working, because the main flow channel has pressure, the liquid pressure inside the exhaust valve 41 is greater than the atmospheric pressure outside, which will make the exhaust valve 41 close, so that the oil does not leak out. Even if the exhaust valve 41 fails and oil leakage occurs, the leaked oil will also flow back to the oil tank through the exhaust valve 41, along the exhaust pipe 43 and the exhaust backflow channel 44, without affecting the overall oil pump 10. The exhaust valve 41 is preferably a normally closed one-way soft rubber valve, which will only open when the pressure in the flow passage is lower than the external atmospheric pressure, has good pressure resistance, long service life and is not easy to be corroded and fail. By setting the exhaust backflow channel assembly 4, the leaked or residual oil can flow back into the oil tank, solving the problems of siphon phenomenon and oil leakage of the oil pump.

[0037] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-siphon, anti-overflow oil well pump structure, characterized by, The oil pump, the oil inlet pipe, the main flow channel assembly, the control box, the exhaust gas backflow channel assembly and the oil outlet pipe are included, wherein: The control box includes a shell, a battery assembly and a control board; The main flow channel assembly is arranged below the shell and communicates with the inside of the shell; The main flow channel assembly includes an input channel, an output channel, an exhaust port and a sealed port; One end of the oil inlet pipe is connected with the oil pump through a first connecting sleeve, and the other end is connected with the input channel through a second connecting sleeve; The oil outlet pipe is connected with the output channel through a third connecting sleeve; The exhaust gas backflow channel assembly is arranged inside the shell below the control board; The exhaust gas backflow channel assembly includes an exhaust valve, a pipe joint, an exhaust pipe and an exhaust gas backflow channel, the exhaust valve is arranged inside the exhaust port, the pipe joint is arranged above the exhaust valve, one end of the exhaust pipe is connected with the pipe joint, and the other end is connected with the exhaust gas backflow channel, and the exhaust gas backflow channel is arranged below the shell.

2. The anti-siphon, anti-overflow, oil well pump structure of claim 1, wherein, The battery assembly includes a battery cover, a battery and an upper shell, wherein: The upper shell covers the inside of the shell; The battery is arranged inside the upper shell; The battery cover covers the battery and forms a battery placement chamber together with the upper shell.

3. The anti-siphon, anti-overflow pump structure of claim 2, wherein, The control board is arranged inside the other side of the upper shell and is electrically connected with the battery.

4. The anti-siphon, anti-overflow pump structure of claim 3, wherein One end of the exhaust gas backflow channel is arranged inside the shell and connected with the exhaust pipe, and the other end is arranged outside the shell below the shell and connected with the barrel mouth of the oil drum.

5. The anti-siphon, anti-overflow pump structure of claim 4, wherein, The sealed port is provided with a sealing plug sleeve inside the shell.

6. The anti-siphon, anti-overflow pump structure of claim 5, wherein, The first connecting sleeve, the second connecting sleeve and the third connecting sleeve are all composed of a connecting sleeve, a sleeve and a sealing ring.

7. The anti-siphon, anti-overflow pump structure of claim 6, wherein, The second connecting sleeve is provided with a nut connecting piece outside the sleeve for fixed connection with the barrel mouth of the oil drum.

8. The anti-siphon, anti-overflow pump structure of claim 7, wherein, The exhaust valve is a one-way soft rubber exhaust valve.

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