Oil tank box with liquid detection device and use method thereof

Abstract

The present invention discloses an oil tank box with a liquid detection device and a method for using the same, and the present invention relates to the technical field of oil tank boxes. The oil tank box with a liquid detection device and a method for using the same include a first oil tank body and a second oil tank body, and a second feed pipe pressure pump is started by a control switch to allow a first type of oil to enter the first oil tank body and the second oil tank body through the second feed pipe, so that the first type of oil pushes the moving plate to move to the right, and the second type of oil on the right side of the moving plate flows out from the first discharge pipe, and the second type of oil in the first oil tank body and the second oil tank body is discharged through the moving plate, and at the same time, the first type of oil is filled in the first oil tank body and the second oil tank body, and the sealing pad and the extrusion cotton are used to wipe the residual oil in the first oil tank body and the second oil tank body, and the sealing pad and the extrusion cotton are used to isolate the first type of oil and the second type of oil, so as to save working time and improve the flexibility of the oil tank box.

Description

Technical Field

[0001] The present invention relates to the technical field of oil tank boxes, and in particular to an oil tank box with a liquid detection device and a use method thereof. Background Art

[0002] Oil tanks are containers for storing crude oil or other petroleum products. They are often used in refineries, oil fields, oil depots and other industries. Generally, each oil tank only stores one type of oil. With the continuous development of industry, the demand for oil products is increasing, and the safety and diversification requirements for oil tanks for oil transportation are also increasing, resulting in the emergence of various oil tanks. According to the structure, there are mainly crude oil storage tanks, fuel storage tanks, lubricating oil tanks, animal and vegetable oil storage tanks, etc. The damage of oil tanks is divided into two categories: 1. Brittle damage caused by welding residual stress; 2. Damage caused by external factors. Therefore, the construction quality of oil tanks must be strictly inspected. A reasonable welding sequence should be adopted during welding to control welding deformation, and leak testing and flaw detection should be carried out.

[0003] At present, most of the oil tanks used in the transportation of oil can only drain the oil in the oil tank first, then use cleaning fluid to clean the residual oil in the oil tank, and then fill the oil of different types into the oil tank. This not only takes a lot of time, but also reduces the efficiency of oil transportation in the oil tank. Or after the oil tank has been transported for a period of time, sediment appears inside the oil tank and the cleaning fluid cannot be cleaned, thereby reducing the purity of the oil transportation. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an oil tank box with a liquid detection device and a method for using the same, which solves the problem that a lot of time is required when filling the oil tank box with different types of oil.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an oil tank box with a liquid detection device, comprising a first oil tank body and a second oil tank body, the first oil tank body and the second oil tank body are fixedly connected to the outside of a splitting mechanism, the first oil tank body and the second oil tank body are slidably connected to the outside of a moving mechanism, the top of the right side of the first oil tank body is connected to a first feed pipe, the bottom of the right side of the first oil tank body is connected to a first discharge pipe, the top of the left side of the second oil tank body is connected to a second feed pipe, the bottom of the left side of the second oil tank body is connected to a second discharge pipe, one end of the first feed pipe and the second feed pipe are fixedly connected to a pressure pump, the outside of the first oil tank body and the second oil tank body and located outside the splitting mechanism are slidably connected to a liquid level detection mechanism, and one end of the first discharge pipe and the second discharge pipe are threadedly connected to a filtering mechanism.

[0008] Preferably, the moving mechanism includes a moving plate, grooves are provided on both sides of the curved surface of the moving plate, a sealing gasket is fixedly connected inside the groove, extrusion sponge is fixedly connected outside the curved surface of the moving plate and located between the two grooves, springs are fixedly connected on both sides of the moving plate, a buffer plate is fixedly connected to one end of the spring, and a plurality of buffer holes are provided inside the buffer plate.

[0009] The above scheme allows the movable plate to move inside the first oil tank body and the second oil tank body through the filling of the first oil tank body and the second oil tank body, discharges the second oil from the inside of the first oil tank body and the second oil tank body, and allows the sealing gasket and the extrusion cotton to wipe off the residual oil inside the first oil tank body and the second oil tank body, and also allows the sealing gasket and the extrusion cotton to isolate the first oil and the second oil, thereby saving the working time of filling oil and improving the flexibility of the oil tank box.

[0010] Preferably, the liquid level detection mechanism comprises an electromagnetic ring, the inner surface of which is fixedly connected to pulleys on all four sides, the first oil tank body and the second oil tank body are fixedly connected to sliding grooves on all four sides, and the inner surface of the sliding groove is slidably connected to the outside of the pulley.

[0011] In the above scheme, the electromagnetic ring is activated by a control switch, and the magnetic force of the electromagnetic ring moves the electromagnetic ring to the same vertical plane as the moving plate, thereby understanding the liquid content inside the oil tank box.

[0012] Preferably, the filtering mechanism comprises a fixed tube, the internal thread of the fixed tube is connected to a filter frame, and the external part of the filter frame is fixedly connected to filter sponge.

[0013] The above scheme filters impurities in the oil by using filter cotton, so that the oil discharged from the first oil tank body and the second oil tank body is free of impurities, thereby improving the transportation quality of the oil.

[0014] Preferably, the splitting mechanism includes a first fixed frame and a second fixed frame, the top of the first fixed frame is fixedly connected to the bottom of the first oil tank body, the top of the second fixed frame is fixedly connected to the bottom of the second oil tank body, the outside of the second oil tank body is fixedly connected to the telescopic rod, the push rod of the telescopic rod is fixedly connected to the outside of the first oil tank body through a fixed block, the outside of the other end of the first oil tank body is slidably connected to a threaded sleeve, the outside of the other end of the second oil tank body is fixedly connected to a threaded ring, a sealing sheet is fixedly connected between the first oil tank body and the second oil tank body, and the inside of the threaded sleeve is adapted to the outside of the threaded ring.

[0015] The above scheme opens the first oil tank body and the second oil tank body by separating the threaded sleeve and the threaded ring, thereby facilitating manual cleaning of the interior of the first oil tank body and the second oil tank body and improving the purity of oil transportation.

[0016] Preferably, the outside of the booster pump is fixedly connected to the outside of one end of the first oil tank body and the second oil tank body.

[0017] Preferably, the outside of the sealing gasket is slidably connected to the inner surfaces of the first oil tank body and the second oil tank body, and the outside of the extruded sponge is slidably connected to the inner surfaces of the first oil tank body and the second oil tank body.

[0018] Preferably, the outside of the buffer plate is slidably connected to the inner surfaces of the first oil tank body and the second oil tank body, and the first oil tank body and the second oil tank body are both made of alloy material.

[0019] Preferably, a discharge valve is provided at one end of the filtering mechanism.

[0020] Preferably, the electromagnetic ring is located outside the threaded sleeve.

[0021] The present invention also provides a method for using an oil tank box with a liquid detection device, which specifically comprises the following steps:

[0022] S1, oil discharge step: firstly, turn the discharge valve at one end of the second discharge pipe to block the discharge port of the second discharge pipe, then connect the oil pipe to the discharge valve at one end of the first discharge pipe, open the discharge valve at one end of the first discharge pipe, start the second feed pipe pressure pump by controlling the switch, so that the first type of oil enters the first oil tank body and the second oil tank body through the second feed pipe, so that the first type of oil pushes the movable plate to move to the right, and the second type of oil on the right side of the movable plate flows out from the first discharge pipe;

[0023] S2, liquid level detection step: while discharging the second type of oil, the electromagnetic ring is started by the control switch to generate magnetic force, and the electromagnetic ring is moved to the same vertical plane of the moving plate by the pulley and the sliding groove through the attraction of magnetic force;

[0024] S3, cleaning steps: when the movable plate moves inside the first oil tank body and the second oil tank body, the sealing gasket and the squeezing cotton wipe off the residual oil on the inner surface of the first oil tank body and the second oil tank body. After the first oil tank body and the second oil tank body have been used for a period of time, open the discharge valves at one end of the first discharge pipe and the second discharge pipe to discharge the two types of oil inside the first oil tank body and the second oil tank body, and then rotate the threaded sleeve to separate the threaded sleeve from the threaded ring, start the telescopic rod through the control switch, separate the first oil tank body and the second oil tank body, take out the movable plate, replace the sealing gasket and the squeezing cotton, and manually clean the inside of the first oil tank body and the second oil tank body, and replace the filter cotton outside the filter frame.

[0025] Beneficial Effects

[0026] The present invention provides an oil tank box with a liquid detection device and a method for using the same. It has the following beneficial effects:

[0027] (1) The oil tank box with a liquid detection device and the method of using the same, start the second feed pipe pressure pump by controlling the switch, so that the first type of oil enters the first oil tank body and the second oil tank body through the second feed pipe, so that the first type of oil pushes the movable plate to move to the right, and the second type of oil on the right side of the movable plate flows out from the first discharge pipe, so that the second type of oil in the first oil tank body and the second oil tank body can be discharged through the movable plate, and the first type of oil can be filled in the first oil tank body and the second oil tank body at the same time, and the residual oil in the first oil tank body and the second oil tank body can be wiped off by the sealing gasket and the extrusion cotton, and the first type of oil and the second type of oil can be isolated by the sealing gasket and the extrusion cotton, so as to save working time and improve the flexibility of the oil tank box.

[0028] (2) The oil tank box with a liquid detection device and the method of using the same are as follows: the electromagnetic ring is activated by a control switch to generate a magnetic force, and the electromagnetic ring is moved to the same vertical plane as the moving plate by the pulley and the sliding groove through the attraction of the magnetic force. In this way, the magnetic force of the electromagnetic ring can move the electromagnetic ring to the same vertical plane as the moving plate, thereby understanding the liquid content inside the oil tank box.

[0029] (3) The oil tank box with a liquid detection device and the method of using the same, by rotating the threaded sleeve to separate the threaded sleeve from the threaded ring, activating the telescopic rod by a control switch, separating the first oil tank body and the second oil tank body, taking out the movable plate, replacing the sealing gasket and the squeezing cotton, thus separating the threaded sleeve from the threaded ring, and opening the first oil tank body and the second oil tank body, thereby facilitating manual cleaning of the interior of the first oil tank body and the second oil tank body, and improving the purity of oil transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the splitting mechanism of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the mobile mechanism of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the liquid level detection mechanism of the present invention;

[0034] Figure 5 It is a structural schematic diagram of the filtering mechanism of the present invention.

[0035] In the figure, 1. the first oil tank body; 2. the second oil tank body; 3. the splitting mechanism; 4. the moving mechanism; 5. the first feed pipe; 6. the first discharge pipe; 7. the second feed pipe; 8. the second discharge pipe; 9. the pressure pump; 10. the filtering mechanism; 11. the moving plate; 12. the groove; 13. the sealing gasket; 14. the spring; 15. the buffer plate; 16. the buffer hole; 17. the electromagnetic ring; 18. the pulley; 19. the sliding groove; 20. the fixed tube; 21. the filter frame; 22. the filter cotton; 23. the first fixed frame; 24. the second fixed frame; 25. the telescopic rod; 26. the threaded ring; 27. the threaded sleeve; 28. the extrusion cotton; 29. ​​the discharge valve; 30. the liquid level detection mechanism. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-5 , the embodiment of the present invention provides two technical solutions:

[0038] Embodiment 1

[0039] An oil tank box with a liquid detection device comprises a first oil tank body 1 and a second oil tank body 2.

[0040] As a preferred embodiment, the first oil tank body 1 and the second oil tank body 2 are fixedly connected to the outside with a splitting mechanism 3, the first oil tank body 1 and the second oil tank body 2 are slidably connected to the outside with a moving mechanism 4, the top of the right side of the first oil tank body 1 is connected to the first feed pipe 5, the bottom of the right side of the first oil tank body 1 is connected to the first discharge pipe 6, the top of the left side of the second oil tank body 2 is connected to the second feed pipe 7, and the bottom of the left side of the second oil tank body 2 is connected to the second discharge pipe 8, one end of the first feed pipe 5 and the second feed pipe 7 are fixedly connected to a booster pump 9, the model of the booster pump 9 is BJZ-037, the booster pump 9 is electrically connected to an external power supply and is controlled by a control switch, the outside of the first oil tank body 1 and the second oil tank body 2 and located on the outside of the splitting mechanism 3 are slidably connected with a liquid level detection mechanism 30, one end of the first discharge pipe 6 and the second discharge pipe 8 are threadedly connected to a filter Mechanism 10, the moving mechanism 4 includes a moving plate 11, grooves 12 are provided on the left and right sides of the curved surface of the moving plate 11, and a sealing gasket 13 is fixedly connected inside the groove 12. The sealing gasket 13 is made of plastic or rubber, and an extrusion sponge 28 is fixedly connected outside the curved surface of the moving plate 11 and located between the two grooves 12. A spring 14 is fixedly connected on the left and right sides of the moving plate 11, and the model of the spring 14 is yy001. It is further explained that the second type of oil inside the first oil tank body 1 and the second oil tank body 2 is discharged through the moving plate, and the first type of oil is filled inside the first oil tank body 1 and the second oil tank body 2, and the sealing gasket 13 and the extrusion sponge 28 are used to wipe off the residual oil inside the first oil tank body 1 and the second oil tank body 2, and the sealing gasket 13 and the extrusion sponge 28 are used to isolate the first type of oil from the second type of oil, thereby saving working time and improving the flexibility of the oil tank box.

[0041] Embodiment 2

[0042] This embodiment is an improvement of the previous embodiment.

[0043] An oil tank box with a liquid detection device comprises a first oil tank body 1 and a second oil tank body 2.

[0044] As a preferred embodiment, the first oil tank body 1 and the second oil tank body 2 are fixedly connected to the outside with a splitting mechanism 3, the first oil tank body 1 and the second oil tank body 2 are slidably connected to the outside with a moving mechanism 4, the top of the right side of the first oil tank body 1 is connected to the first feed pipe 5, the bottom of the right side of the first oil tank body 1 is connected to the first discharge pipe 6, the top of the left side of the second oil tank body 2 is connected to the second feed pipe 7, and the bottom of the left side of the second oil tank body 2 is connected to the second discharge pipe 8, one end of the first feed pipe 5 and the second feed pipe 7 are fixedly connected to a booster pump 9, the model of the booster pump 9 is BJZ-037, the booster pump 9 is electrically connected to an external power supply and is controlled by a control switch, the outside of the first oil tank body 1 and the second oil tank body 2 and located on the outside of the splitting mechanism 3 are slidably connected with a liquid level detection mechanism 30, one end of the first discharge pipe 6 and the second discharge pipe 8 are threadedly connected to a filter Mechanism 10, the moving mechanism 4 includes a moving plate 11, grooves 12 are provided on the left and right sides of the curved surface of the moving plate 11, and a sealing gasket 13 is fixedly connected inside the groove 12. The sealing gasket 13 is made of plastic or rubber, and an extrusion sponge 28 is fixedly connected outside the curved surface of the moving plate 11 and located between the two grooves 12. A spring 14 is fixedly connected on the left and right sides of the moving plate 11, and the model of the spring 14 is yy001. It is further explained that the second type of oil inside the first oil tank body 1 and the second oil tank body 2 is discharged through the moving plate, and the first type of oil is filled inside the first oil tank body 1 and the second oil tank body 2, and the sealing gasket 13 and the extrusion sponge 28 are used to wipe off the residual oil inside the first oil tank body 1 and the second oil tank body 2, and the sealing gasket 13 and the extrusion sponge 28 are used to isolate the first type of oil from the second type of oil, thereby saving working time and improving the flexibility of the oil tank box.

[0045] As a preferred embodiment, the splitting mechanism 3 includes a first fixed frame 23 and a second fixed frame 24, the top of the first fixed frame 23 is fixedly connected to the bottom of the first oil tank body 1, the top of the second fixed frame 24 is fixedly connected to the bottom of the second oil tank body 2, the outside of the second oil tank body 2 is fixedly connected to the telescopic rod 25, the model of the telescopic rod 25 is 111, the telescopic rod 25 is electrically connected to the external power supply, and is controlled by the control switch, the push rod of the telescopic rod 25 is fixedly connected to the outside of the first oil tank body 1 through the fixed block, the outside of the other end of the first oil tank body 1 is slidably connected with a threaded sleeve 27, the electromagnetic ring 17 is located outside the threaded sleeve 27, the outside of the other end of the second oil tank body 2 is fixedly connected with a threaded ring 26, and a sealing sheet is fixedly connected between the first oil tank body 1 and the second oil tank body 2. It is further explained that by separating the threaded sleeve and the threaded ring, the first oil tank body 1 and the second oil tank body 2 are opened, so as to facilitate manual cleaning of the inside of the first oil tank body 1 and the second oil tank body 2, thereby improving the purity of oil transportation.

[0046] As a preferred solution, the filter mechanism 10 includes a fixed tube 20 , the inner thread of the fixed tube 20 is connected to a filter frame 21 , and the outer surface of the filter frame 21 is fixedly connected to a filter sponge 22 .

[0047] As a preferred embodiment, the liquid level detection mechanism 30 includes an electromagnetic ring 17, which is composed of a plurality of electromagnets. The inner surface of the electromagnetic ring 17 is fixedly connected to pulleys 18 on all sides. The first oil tank body 1 and the second oil tank body 2 are fixedly connected to sliding grooves 19 on all sides. The inner surface of the sliding groove 19 is slidably connected to the outside of the pulley 18. It is further explained that the electromagnetic ring 17 is moved to the same vertical plane as the moving plate 11 by the magnetic force of the electromagnetic ring 17, so as to understand the liquid content inside the oil tank box.

[0048] As a preferred solution, the outside of the booster pump 9 is fixedly connected to the outside of one end of the first oil tank body 1 and the second oil tank body 2 .

[0049] As a preferred solution, the outside of the sealing gasket 13 is slidingly connected to the inner surfaces of the first oil tank body 1 and the second oil tank body 2, and the outside of the extruded sponge 28 is slidingly connected to the inner surfaces of the first oil tank body 1 and the second oil tank body 2, and the extruded sponge 28 relies on the nanoscale capillary opening structure in the sponge.

[0050] As a preferred solution, one end of the spring 14 is fixedly connected to a buffer plate 15 , a plurality of buffer holes 16 are provided inside the buffer plate 15 , and the outside of the buffer plate 15 is slidably connected to the inner surfaces of the first oil tank body 1 and the second oil tank body 2 .

[0051] As a preferred solution, a discharge valve 29 is provided at one end of the filter mechanism 10 .

[0052] The advantages of the second embodiment over the first embodiment are: through the arrangement of the electromagnetic ring 17, the pulley 18 and the sliding groove 19, the magnetic force of the electromagnetic ring 17 can move the electromagnetic ring 17 to the same vertical plane as the moving plate 11, so as to understand the liquid content inside the oil tank box; through the arrangement of the threaded sleeve 27, the threaded ring 26 and the telescopic rod 25, the first oil tank body 1 and the second oil tank body 2 can be opened, so as to facilitate manual cleaning of the interior of the first oil tank body 1 and the second oil tank body 2, thereby improving the purity of oil transportation.

[0053] The present invention also discloses a method for using an oil tank box with a liquid detection device, which specifically comprises the following steps:

[0054] S1, oil discharge step: first, turn the discharge valve 29 at one end of the second discharge pipe 8 to block the discharge port of the second discharge pipe 8, then connect the oil pipe to the discharge valve 29 at one end of the first discharge pipe 6, open the discharge valve 29 at one end of the first discharge pipe 6, start the second feed pipe 7 pressure pump 9 by controlling the switch, so that the first type of oil enters the first oil tank body 1 and the second oil tank body 2 through the second feed pipe 7, so that the first type of oil pushes the movable plate 11 to move to the right, and the second type of oil on the right side of the movable plate 11 flows out from the first discharge pipe 6;

[0055] S2, liquid level detection step: while discharging the second type of oil, the electromagnetic ring 17 is started by the control switch, so that the electromagnetic ring 17 generates magnetic force, and the electromagnetic ring 17 moves to the same vertical plane of the moving plate 11 through the pulley 18 and the sliding groove 19 through the attraction of the magnetic force;

[0056] S3, cleaning steps: when the movable plate 11 moves inside the first oil tank body 1 and the second oil tank body 2, the sealing gasket 13 and the squeezing cotton 28 wipe off the residual oil on the inner surface of the first oil tank body 1 and the second oil tank body 2. After the first oil tank body 1 and the second oil tank body 2 have been used for a period of time, the discharge valves 29 at one end of the first discharge pipe 6 and the second discharge pipe 8 are opened to discharge the two types of oil inside the first oil tank body 1 and the second oil tank body 2, and then the threaded sleeve 27 is rotated to separate the threaded sleeve 27 from the threaded ring 26. The telescopic rod 25 is started by the control switch to separate the first oil tank body 1 and the second oil tank body 2, the movable plate 11 is taken out, the sealing gasket 13 and the squeezing cotton 28 are replaced, and at the same time, the interior of the first oil tank body 1 and the second oil tank body 2 are manually cleaned, and the filter cotton 22 outside the filter frame 21 is replaced.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil tank box with a liquid detection device, comprising a first oil tank body (1) and a second oil tank body (2), characterized in that: The first oil tank body (1) and the second oil tank body (2) are fixedly connected to the outside of the splitting mechanism (3); the first oil tank body (1) and the second oil tank body (2) are slidably connected to the outside of the moving mechanism (4); the top of the right side of the first oil tank body (1) is connected to the first feed pipe (5); the bottom of the right side of the first oil tank body (1) is connected to the first discharge pipe (6); the top of the left side of the second oil tank body (2) is connected to the second feed pipe (7); the bottom of the left side of the second oil tank body (2) is connected to the second discharge pipe (8); one end of the first feed pipe (5) and the second feed pipe (7) are fixedly connected to a pressure pump (9); the outside of the first oil tank body (1) and the second oil tank body (2) and located outside the splitting mechanism (3) are slidably connected to a liquid level detection mechanism (30); one end of the first discharge pipe (6) and the second discharge pipe (8) are threadedly connected to a filtering mechanism (10); The moving mechanism (4) comprises a moving plate (11), the left and right sides of the curved surface of the moving plate (11) are provided with grooves (12), the interior of the grooves (12) is fixedly connected with a sealing gasket (13), the exterior of the curved surface of the moving plate (11) and located between the two grooves (12) is fixedly connected with an extrusion sponge (28), the left and right sides of the moving plate (11) are fixedly connected with a spring (14), one end of the spring (14) is fixedly connected with a buffer plate (15), and the interior of the buffer plate (15) is provided with a plurality of buffer holes (16); The liquid level detection mechanism (30) comprises an electromagnetic ring (17), the inner surface of the electromagnetic ring (17) is fixedly connected to pulleys (18) on all sides, the first oil tank body (1) and the second oil tank body (2) are fixedly connected to sliding grooves (19) on all sides, and the inner surface of the sliding groove (19) is slidably connected to the outside of the pulley (18); The filtering mechanism (10) comprises a fixed tube (20), the interior of the fixed tube (20) is threadedly connected to a filter frame (21), and the exterior of the filter frame (21) is fixedly connected to a filter sponge (22); The splitting mechanism (3) comprises a first fixing frame (23) and a second fixing frame (24); the top of the first fixing frame (23) is fixedly connected to the bottom of the first oil tank body (1); the top of the second fixing frame (24) is fixedly connected to the bottom of the second oil tank body (2); the outside of the second oil tank body (2) is fixedly connected to a telescopic rod (25); the push rod of the telescopic rod (25) is fixedly connected to the outside of the first oil tank body (1) through a fixing block; the outside of the other end of the first oil tank body (1) is slidably connected to a threaded sleeve (27); the outside of the other end of the second oil tank body (2) is fixedly connected to a threaded ring (26); and a sealing sheet is fixedly connected between the first oil tank body (1) and the second oil tank body (2).

2. The oil tank box with a liquid detection device according to claim 1, characterized in that: The exteriors of the two booster pumps (9) are respectively fixedly connected to the exteriors of one end of the first oil tank body (1) and the second oil tank body (2).

3. The oil tank box with a liquid detection device according to claim 2, characterized in that: The outside of the sealing gasket (13) is slidably connected to the inner surfaces of the first oil tank body (1) and the second oil tank body (2), and the outside of the extruded sponge (28) is slidably connected to the inner surfaces of the first oil tank body (1) and the second oil tank body (2).

4. The oil tank box with a liquid detection device according to claim 3, characterized in that: The outside of the buffer plate (15) is slidably connected to the inner surfaces of the first oil tank body (1) and the second oil tank body (2).

5. The oil tank box with a liquid detection device according to claim 4, characterized in that: A discharge valve (29) is provided at one end of the filtering mechanism (10).

6. The oil tank box with a liquid detection device according to claim 5, characterized in that: The electromagnetic ring (17) is located outside the threaded sleeve (27).

7. A method for using the oil tank box with a liquid detection device according to claim 6, characterized in that: The specific steps include: S1, oil discharge step: firstly, rotating the discharge valve (29) at one end of the second discharge pipe (8) to block the discharge port of the second discharge pipe (8), then connecting the oil pipe to the discharge valve (29) at one end of the first discharge pipe (6), opening the discharge valve (29) at one end of the first discharge pipe (6), starting the second feed pipe (7) pressure pump (9) by controlling the switch, so that the first type of oil enters the first oil tank body (1) and the second oil tank body (2) through the second feed pipe (7), so that the first type of oil pushes the movable plate (11) to move rightward, and the second type of oil on the right side of the movable plate (11) flows out from the first discharge pipe (6); S2, liquid level detection step: while discharging the second type of oil, the electromagnetic ring (17) is activated by the control switch, so that the electromagnetic ring (17) generates magnetic force, and the electromagnetic ring (17) moves to the same vertical plane as the moving plate (11) through the magnetic attraction pulley (18) and the sliding groove (19); S3, cleaning step: when the movable plate (11) moves inside the first oil tank body (1) and the second oil tank body (2), the sealing pad (13) and the squeezing sponge (28) wipe off the residual oil on the inner surface of the first oil tank body (1) and the second oil tank body (2). After the first oil tank body (1) and the second oil tank body (2) have been used for a period of time, the discharge valves (29) at one end of the first discharge pipe (6) and the second discharge pipe (8) are opened to discharge the first oil tank body (1) and the second oil tank body (2). The two types of oil in the body (2) are discharged, and then the threaded sleeve (27) is rotated to separate the threaded sleeve (27) from the threaded ring (26). The telescopic rod (25) is activated by a control switch to separate the first oil tank body (1) and the second oil tank body (2). The movable plate (11) is taken out, the sealing gasket (13) and the squeezing sponge (28) are replaced, and at the same time, the inside of the first oil tank body (1) and the second oil tank body (2) are manually cleaned, and the filter sponge (22) outside the filter frame (21) is replaced.

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