Anti-siphon anti-overflow oil well pump structure

Abstract

The invention 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 technical field of oil pumps, and more specifically, to an anti-siphon and anti-overflow oil pump structure. Background Art

[0002] The main function of an oil pump is to extract gasoline or diesel from an oil barrel into a vehicle, ship, or mechanical fuel equipment for operation, and at the same time, it can also extract fuel from the fuel tank of mechanical equipment to facilitate subsequent maintenance, repair, and other operations by operators. Among them, portable oil pumps are widely used in various scenarios.

[0003] Currently, the flow channel structure of existing portable oil pumps on the market is mostly integrated with the pump housing, with a complex part structure, resulting in complex production and assembly processes and inconvenient operation. In addition, there is a ventilation valve in the flow channel of existing portable oil pumps, with a complex structure and high precision requirements for parts, which may cause oil leakage and siphon phenomena.

[0004] The exhaust structure of existing oil pumps is equipped with a one-way exhaust valve, which has a certain risk of seal 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 and even flow to the external environment, polluting and damaging the internal control components and the environment, resulting in control failure and environmental pollution, and the product can no longer work. In addition, when the oil outlet is lower than the height of the oil surface, even if the oil pump has stopped working, under the action of gravity, the oil will still flow out continuously through the oil outlet. Summary of the Invention

[0005] This application provides an anti-siphon and anti-overflow oil pump structure, which adopts a double-flow channel coupling design structure, leads the exhaust outlet to the oil barrel outlet, and makes the leaked oil return to the inside of the oil barrel.

[0006] To achieve the above object, this application provides an anti-siphon and anti-overflow oil pump structure, including an oil pump, an inlet pipe, a main flow channel assembly, a control box, an exhaust return channel assembly, and an outlet pipe. Among them: the control box includes a housing, a battery assembly, and a control board; the main flow channel assembly is arranged below the housing and is communicated with the inside 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 inlet pipe is connected to the oil pump through a first connection kit, and the other end is connected to the input channel through a second connection kit; the outlet pipe is connected to the output channel through a third connection kit; the exhaust return channel assembly is arranged inside the housing, below the control board; the exhaust return channel assembly includes an exhaust valve, a pipe joint, an exhaust pipe, and an exhaust return 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 to the pipe joint, and the other end is connected to the exhaust return channel. The exhaust return channel is fixedly arranged at the bottom end of the housing.

[0007] Further, the battery assembly includes a battery cover, a battery, and an upper housing, wherein: the upper housing covers the upper part inside the housing; the battery is arranged inside the upper housing; the battery cover covers the battery, and together with the upper housing, forms a battery placement compartment.

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

[0009] Further, one end of the exhaust reflux channel is located inside the bottom end of the housing and is connected to the exhaust pipe, and the other end is located outside the bottom end of the housing and is connected to the barrel mouth of the oil barrel.

[0010] Further, a sealing plug sleeve is arranged inside the sealing port, and the sealing plug sleeve is arranged inside the housing.

[0011] Further, the first connection kit, the second connection kit, and the third connection kit are all composed of a connecting sleeve, a sleeve pipe, and a sealing ring.

[0012] Further, a nut connector is sleeved outside the second connection kit for fixedly connecting to the barrel mouth 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 pump structure provided by the present application has the following beneficial effects:

[0015] The present application adopts a structure of double-channel coupling design, forms a dynamic pressure balance cavity inside the main channel, and leads the exhaust outlet to the oil barrel outlet. During the oil pumping process, through dynamic compensation, the oil liquid generated by leakage can flow back into the oil barrel again, effectively alleviating the occurrence of oil liquid leakage and siphon phenomenon of the oil pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objects, and advantages of the present application more obvious. The schematic embodiments drawings of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

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

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

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

[0020] Figure 4 It is a cross-sectional view of the exhaust return channel of the anti-siphon and anti-overflow oil pump structure provided by the embodiments of the present application;

[0021] In the figure: 1 - 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 - housing, 32 - battery assembly, 321 - battery cover, 322 - battery, 323 - upper housing, 33 - control board, 4 - exhaust return channel assembly, 41 - exhaust valve, 42 - pipeline joint, 43 - exhaust pipe, 44 - exhaust return channel, 5 - outlet pipe, 6 - connecting sleeve, 7 - sleeve, 8 - sealing ring, 9 - nut connector, 10 - oil pump. Detailed implementation manners

[0022] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

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

[0024] In the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is 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 that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation.

[0025] Moreover, in addition to being used to indicate orientation or positional relationship, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For those of ordinary skill 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 or more.

[0027] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will refer to the drawings and combine with embodiments to detail this application.

[0028] As Figures 1-4 shown, this application provides an anti-siphon and anti-overflow oil pump structure, including an oil pump 10, an inlet pipe 1, a main flow channel assembly 2, a control box 3, an exhaust return channel assembly 4, and an outlet pipe 5, wherein: the control box 3 includes a housing 31, a battery assembly 32, and a control board 33; the main flow channel assembly 2 is arranged below the housing 31 and is communicated with the interior of the housing 31; the main flow channel assembly 2 includes an input channel 21, an output channel 22, an exhaust port 23, and a sealing port 24; one end of the inlet pipe 1 is connected to the oil pump 10 through a first connection kit, and the other end is connected to the input channel 21 through a second connection kit; the outlet pipe 5 is connected to the output channel 22 through a third connection kit; the exhaust return channel assembly 4 is arranged inside the housing 31, below the control board 33; the exhaust return channel assembly 4 includes an exhaust valve 41, a pipeline joint 42, an exhaust pipe 43, and an exhaust return channel 44, the exhaust valve 41 is arranged inside the exhaust port 23, the pipeline joint 42 is arranged above the exhaust valve 41, one end of the exhaust pipe 43 is connected to the pipeline joint 42, and the other end is connected to the exhaust return channel 44, and the exhaust return channel 44 is fixedly arranged at the bottom end of the housing 31.

[0029] Specifically, the anti-siphon and anti-overflow oil pump structure provided by the embodiments of the present application is mainly used to extract gasoline or diesel from inside an oil barrel or fuel tank. Among them, the oil pump 10 and the inlet pipe 1 are inserted into the inside of the oil barrel. The inlet pipe 1 is connected to the oil pump 10 through a first connection kit. The oil pump 10 is below the oil surface inside the oil barrel. The main flow channel assembly 2 is equivalent to a component of a tee structure and is integrally embedded at the housing 31 below the control box 3. Among them, the input channel 21 is arranged below the housing 31 and is connected to the inlet pipe 1 through a second connection kit. The output channel 22 is arranged on the side of the housing 31 and is connected to the outlet pipe 5 through a third connection kit. The exhaust port 23 and the sealing port 24 extend into the housing 31. The exhaust port 23 is used to dock with the exhaust reflux channel assembly 4 for exhausting and allowing the oil to flow back. The sealing port 24 is used to adjust the pressure inside the channel and for heat dissipation. The exhaust reflux channel assembly 4 includes an exhaust valve 41, a pipe joint 42, an exhaust pipe 43, and an exhaust reflux 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 to the pipe joint 42, and the other end is connected to the exhaust reflux channel 44. The exhaust reflux channel 44 is fixedly arranged at the bottom end of the housing 31. The control box 3 plays a role in power supply and control. When pumping oil, the oil pump 10 is started through the control box 3, and the oil inside the oil barrel will flow inside the main flow channel assembly 2, that is, it enters the input channel 21 along the inlet pipe 1, and then flows out through the output channel 22 and the outlet pipe 5. The outlet pipe 5 is subsequently connected to an oil outlet device such as an oil gun to achieve the extraction of the oil. During the oil extraction process, if the exhaust valve 41 fails to seal or other oil residue leakage phenomena occur, the residual leaked oil will enter the exhaust reflux channel 44 through the exhaust valve 41 and the exhaust pipe 43, and then flow back into the oil barrel along the exhaust reflux channel 44, and will not directly leak into the control box 3, affecting the control system and other structures of the oil pump.

[0030] Furthermore, the battery assembly 32 includes a battery cover 321, a battery 322, and an upper housing 323, where: the upper housing 323 covers the upper part inside the housing 31; the battery 322 is arranged inside the upper housing 323; the battery cover 321 covers the battery 322 and together with the upper housing 323 forms a battery placement compartment. The battery assembly 32 is arranged in the upper half of the control box 3, mainly for placing the battery 322 and supplying power to various external structures. A battery placement compartment is formed above the housing 31 for placing the battery 322, and a charging structure can also be set according to actual situations for charging the battery 322.

[0031] Furthermore, the control board 33 is arranged inside the other side of the upper housing 323 and is electrically connected to the battery 322. The control board 33 is arranged on one side of the battery 322 placement compartment, and control buttons are arranged thereon for turning on and off the oil pump 10 and controlling the working state of the oil pump 10.

[0032] Further, one end of the exhaust gas reflux channel 44 is located inside the bottom end of the housing 31 and is connected to the exhaust pipe 43, and the other end is located outside the bottom end of the housing 31 and is connected to the mouth of the oil barrel. The exhaust gas reflux channel 44 is mainly used to connect with the oil barrel to make the leaked oil fluid flow back into the oil barrel. The exhaust gas reflux channel 44 is integrally fixed at the bottom end of the housing 31. According to the actual situation, an integrally formed structure with the housing 31 can be selected, and the lower end is directly connected to the mouth of the oil barrel. Or, an opening can be made at the bottom end of the housing 31, the upper end of the exhaust gas reflux channel 44 is inserted into the housing 31 and fixed, and the lower end extends to the outside of the housing 31 and is connected to the mouth of the oil barrel. When the exhaust valve 41 fails or the oil fluid inside the main flow channel leaks, the leaked oil fluid will pass through the exhaust valve 41, the pipe joint 42, and the exhaust pipe 43 in sequence and enter the exhaust gas reflux channel 44, and flow back into the oil barrel through the exhaust gas reflux channel 44 to prevent the oil fluid leakage from affecting the operation of the control system.

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

[0034] Further, the first connection kit, the second connection kit, and the third connection kit are all composed of a connecting sleeve 6, a sleeve 7, and a sealing ring 8. The first connection kit and the second connection kit are used for connecting both ends of the inlet pipe 1; the third connection kit is used for connecting the outlet pipe 5. The connection structure of the connecting sleeve 6, the sleeve 7, and the sealing ring 8 is adopted for the connection kit, so that the inlet and outlet pipes 5 are more firmly connected to the channel, preventing oil fluid leakage.

[0035] Further, a nut connector 9 is sleeved outside the second connection kit for fixedly connecting with the mouth of the oil barrel. A nut connector 9 is arranged at the connection positions of the input channel 21, the exhaust gas reflux channel 44, and the mouth of the oil barrel. The nut connector 9 is used for docking with the oil barrel. There is a thread at the mouth of the oil barrel. The input channel 21 and the exhaust gas reflux channel 44 are integrally tightened and fixed on the mouth of the oil barrel through the nut connector 9. In this way, not only can the inlet pipe 1 and the oil pump 10 be smoothly inserted into the oil barrel, but also the leaked oil fluid in the exhaust gas reflux channel 44 can flow back into the oil barrel, ensuring the stable and reliable oil pumping process.

[0036] Furthermore, the exhaust valve 41 is a one-way soft rubber exhaust valve. When the oil pump 10 stops working, the oil in the mainstream channel will generate negative pressure in the flow channel 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 allow gas to enter the flow channel, which can avoid siphoning in the flow channel. When the oil pump 10 starts working, because there is pressure in the mainstream channel, the liquid pressure inside the exhaust valve 41 is greater than the atmospheric pressure outside, which will close the exhaust valve 41 and prevent the oil from leaking out. Even if the exhaust valve 41 fails and oil leakage occurs, the leaked oil will pass through the exhaust valve 41, along the exhaust pipe 43 and the exhaust return channel 44, and flow back to the oil barrel, and will not affect the oil pump 10 as a whole. The exhaust valve 41 is preferably a normally closed one-way soft rubber valve, which will only open when the pressure in the flow channel is lower than the external atmospheric pressure. It has good pressure resistance, long service life, and is not easily corroded and failed. By setting the exhaust reflux channel assembly 4, the leaked or residual oil can flow back into the oil barrel again, solving the problems of oil pump siphoning and oil leakage.

[0037] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A siphon-proof and overflow-proof oil extraction pump structure, characterized in that, It includes an oil pump, an inlet pipe, a main flow channel assembly, a control box, an exhaust return channel assembly, and an outlet pipe, where: The control box includes a housing, a battery assembly, and a control board; The main flow channel assembly is arranged below the housing and is in communication 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 inlet pipe is connected to the oil pump through a first connection kit, and the other end is connected to the input channel through a second connection kit; The outlet pipe is connected to the output channel through a third connection kit; The exhaust return channel assembly is arranged inside the housing, below the control board; The exhaust return channel assembly includes an exhaust valve, a pipe joint, an exhaust pipe, and an exhaust return 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 to the pipe joint, the other end is connected to the exhaust return channel, and the exhaust return channel is fixedly arranged at the bottom end of the housing.

2. The anti-siphon and anti-overflow oil extraction pump structure according to claim 1, characterized in that, The battery assembly includes a battery cover, a battery, and an upper housing, where: The upper housing covers the upper part inside the housing; The battery is arranged inside the upper housing; The battery cover covers the battery, and together with the upper housing forms a battery placement compartment.

3. The anti-siphon and anti-overflow oil extraction pump structure according to claim 2, characterized in that, The control board is arranged inside the other side of the upper housing and is electrically connected to the battery.

4. The anti-siphon and anti-overflow oil extraction pump structure according to claim 3, characterized in that, One end of the exhaust return channel is located inside the bottom end of the housing and is connected to the exhaust pipe, and the other end is located outside the bottom end of the housing and is connected to the mouth of the oil barrel.

5. The anti-siphon and anti-overflow oil pumping structure according to claim 4, characterized in that A sealing plug sleeve is arranged inside the sealing port, and the sealing plug sleeve is arranged inside the housing.

6. The anti-siphon and anti-overflow oil extraction pump structure according to claim 5, characterized in that, The first connection kit, the second connection kit, and the third connection kit are all composed of a connection sleeve, a sleeve, and a sealing ring.

7. The anti-siphon and anti-overflow oil extraction pump structure according to claim 6, wherein, A nut connector is sleeved outside the second connection kit for fixed connection with the mouth of the oil barrel.

8. The anti-siphon and anti-overflow oil extraction pump structure according to claim 7, characterized in that, The exhaust valve is a one-way soft rubber exhaust valve.

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