Anti-theft fuel tank

Abstract

An anti-theft oil tank includes an anti-theft refueling device installed at the refueling port on the top of the oil tank and an oil float anti-theft device installed at the top of the oil tank. The anti-theft refueling device includes a filter body located at the top, a fixed body penetrating the refueling port on the top of the oil tank, and a filter body installed at the bottom of the fixed body. The oil float anti-theft device includes a fixed body I, a fixed body II and a fixed body III; the outer side of the fixed body is welded to the inner side of the top of the oil tank; the top of the oil float is installed on the top of the fixed body by bolts; the fixed body and the oil float are placed on the inner side of the center of the fixed body as a whole, and the fixed body is installed at the bottom of the center of the fixed body, and the fixed body is installed at the bottom of the fixed body by bolts. The present invention can prevent debris from falling into the oil tank, effectively prevent oil thieves from extending the oil extraction pipe into the oil tank, prevent the possibility of oil in the oil tank being stolen, solve the unnecessary troubles and losses caused by the theft of automobile oil, and is more convenient to install and safer to use.

Description

Technical Field

[0001] The invention relates to automobile parts, in particular to an anti-theft oil tank. Background Art

[0002] The existing automobile fuel tank filter is a cylinder with the same inner and outer radius. Its outer shell is made of plastic material. A thin steel wire mesh is installed on the inner layer of the plastic shell. The mesh of the filter is small and can be installed with hexagon socket screws. The fuel tank filter can be easily taken out of the fuel tank. The existing fuel tank filter only plays the role of preventing dust and other debris from entering the fuel tank during use. There are several shortcomings in its structure. First, due to the small mesh of the steel wire mesh and the outer plastic shell structure and the filter, there is a certain resistance when refueling, and refueling is slow. Second, it is easy to be drawn out from the fuel tank and does not have the function of preventing the theft of diesel in the automobile fuel tank.

[0003] As oil prices continue to rise, criminals are willing to break the law to steal oil from car tanks. Most car fuel tank caps are easily pried open, and criminals insert oil pipes into the tanks to extract the oil, causing certain economic losses to car owners. Since truck fuel tanks have poor anti-theft performance, the phenomenon of truck fuel theft is very common. Summary of the invention

[0004] In order to solve the above problems in the prior art, the present invention provides an anti-theft oil tank.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] An anti-theft oil tank comprises an anti-theft refueling device A installed at a refueling port on the top of the oil tank.

[0007] The anti-theft refueling device A includes a filter body IA1 located at the top, a fixed body A2 penetrating the refueling port at the top of the fuel tank, and a filter body IIA3 installed at the bottom of the fixed body A2.

[0008] The filter body IA1 is in the shape of a trapezoidal stepped hollow shaft as a whole, with a top portion being an outwardly protruding fuel tank cap connecting body 101, a bottom portion being a first connecting body 102 with external threads, and a first refueling cavity 104 running through the entire body thereof; a first U-shaped filter screen 105 is installed inside the first refueling cavity 104; a first air outlet 103 running through the entire body is also provided on one side of the filter body IA1, wherein the first air outlet 103 runs from the top fuel tank cap connecting body 101 all the way through the first connecting body 102.

[0009] The fixed body A2 is in the shape of a trapezoidal stepped hollow shaft as a whole, with a second connecting body 201 with an internal thread on its top, a third connecting body 202 with an external thread on its bottom, and a second refueling cavity 204 running through the entire body inside. A number of oil leakage holes 205 are evenly distributed on the bottom of the fixed body A2. A second air outlet 203 running through the entire body is also provided on one side of the fixed body A2, wherein the second air outlet 203 starts from the bottom surface of the top second connecting body 201 and runs horizontally through the middle of the fixed body A2.

[0010] The filter body IIA3 is in the shape of a trapezoidal stepped hollow shaft as a whole, with a fourth connecting body 301 with an internal thread on its top and a horizontal oil outlet pipe 302 with a third filter screen 303 and a fourth filter screen 304 on its bottom, and a hinged rotating piece for preventing backflow is provided at the end of the oil outlet pipe 302; wherein, the third filter screen 303 is located at the bend of the oil outlet pipe 302, and the fourth filter screen 304 is located at the end of the oil outlet pipe 302; the interior of the filter body IIA3 is a third refueling cavity 305 that runs through 2 / 3 of the entire body.

[0011] The oil float anti-theft device B includes a fixed body IB1, a fixed body IIB2 and a fixed body IIIB3; a through hole is opened on the top of the oil tank, the fixed body IB1 is installed from the bottom, the top extends out of the through hole, and the outer side of the fixed body IB1 is welded to the inner side of the top of the oil tank; a disc-shaped fixed body IIIB3 is arranged on the inner side of the fixed body IB1, and a through hole is arranged at the center of the fixed body IIIB3, and this through hole is used to place the oil float B4, and the top of the oil float B4 is installed on the top of the fixed body IIIB3 by bolts; the fixed body IIIB3 and the oil float B4 are placed as a whole on the inner side of the center of the fixed body IB1, and the fixed body IIB2 is installed on the bottom of the center of the fixed body IB1, and the fixed body IIB2 is installed on the bottom of the fixed body IB1 by bolts.

[0012] The present invention also has the following additional technical features:

[0013] As a further specific optimization of the technical solution of the present invention: the first connecting body 102 is threadedly connected to the second connecting body 201; the third connecting body 202 is threadedly connected to the fourth connecting body 301; a plurality of array-shaped welding frames 206 extend from the side of the fixed body A2, and the welding frames 206 are directly welded to the inner wall of the oil tank.

[0014] As a further specific optimization of the technical solution of the present invention: the first refueling cavity 104, the second refueling cavity 204, the third refueling cavity 305 and the oil outlet pipe 302 are connected in series in sequence.

[0015] As a further specific optimization of the technical solution of the present invention: the first air outlet 103 is connected in series with the second air outlet 203 ; the gas in the oil tank can overflow from the cavities of the second air outlet 203 and the first air outlet 103 .

[0016] As a further specific optimization of the technical solution of the present invention: the gap distance between the fixing body IB1 and the top of the fixing body IIB2 is greater than the thickness of the fixing body IIIB3.

[0017] As a further specific optimization of the technical solution of the present invention: the fuel tank is formed by welding a plurality of fuel tank protection plates C to each other, and the fuel tank protection plates C are provided with a plurality of patterns IC1 and patterns IIC2 arranged at 90 degrees.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] Advantage 1: The fixed body A2 of the anti-theft refueling device A of the present invention is a protective connection part, which can protect the joint of the fuel tank cover from being easily damaged, further improving the anti-theft performance.

[0020] Advantage 2: After installation, the filter body IIA3 of the anti-theft refueling device A of the present invention is located in the fuel tank and is not easy to pry open. It is difficult to remove, which further improves the anti-theft performance.

[0021] Advantage 3: The present invention can prevent debris from falling into the fuel tank, effectively prevent oil thieves from extending the oil extraction pipe into the fuel tank, prevent the possibility of oil in the fuel tank being stolen, and solve the unnecessary trouble and loss caused by the theft of automobile oil; it is more convenient to install and safer to use.

[0022] Advantage 4: The setting of the oil float anti-theft device B can ensure that the fixed body IIIB3 and the oil float B4 can rotate as a whole at the top gap between the fixed body IB1 and the fixed body IIB2, preventing oil thieves from removing the oil float B4 and stealing oil.

[0023] Advantage 5: The patterns IC1 and IIC2 provided on the fuel tank protection plate C can reduce the points of force on the surface of the fuel tank protection plate C, thereby preventing oil thieves from using an electric drill to drill through the fuel tank protection plate C from the outside to steal oil.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the anti-theft oil tank installation structure of the present invention;

[0027] Figure 2 This is a schematic structural diagram of the anti-theft refueling device A of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the filter body IA1 of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the fixed body A2 of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the filter body IIA3 of the present invention;

[0031] Figure 6 This is a schematic diagram of the installation structure of the oil floating anti-theft device B of the present invention;

[0032] Figure 7 This is a schematic diagram of the installation structure of the fixed body IIIB3 and the oil float B4 of the present invention;

[0033] Figure 8 It is a schematic diagram of the installation structure of the oil floating anti-theft device B and the oil floating B4 of the present invention;

[0034] Fig. 9 This is a schematic structural diagram of the fixed body IB1 of the present invention;

[0035] Fig.10 This is a schematic structural diagram of the fixed body IIB2 of the present invention;

[0036] Fig.11 This is a schematic structural diagram of the fixed body IIIB3 of the present invention;

[0037] Fig.12 It is a schematic structural diagram of the fuel tank protection plate C of the present invention. DETAILED DESCRIPTION

[0038] The exemplary embodiments disclosed in the present invention will be described in more detail below with reference to the accompanying drawings. These embodiments are intended to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art. Although the exemplary embodiments disclosed in the present invention are shown in the accompanying drawings, it should be understood that the present invention should not be limited by the embodiments described herein.

[0039] An anti-theft oil tank comprises an anti-theft refueling device A installed at a refueling port on the top of the oil tank.

[0040] The anti-theft refueling device A includes a filter body IA1 located at the top, a fixed body A2 penetrating the refueling port at the top of the fuel tank, and a filter body IIA3 installed at the bottom of the fixed body A2.

[0041] The filter body IA1 is in the shape of a trapezoidal stepped hollow shaft as a whole, with a top portion being an outwardly protruding fuel tank cap connecting body 101, a bottom portion being a first connecting body 102 with external threads, and a first refueling cavity 104 running through the entire body thereof; a first U-shaped filter screen 105 is installed inside the first refueling cavity 104, and the first filter screen 105 can prevent debris from falling into the fuel tank; a first air outlet hole 103 running through the entire body is also provided on one side of the filter body IA1, wherein the first air outlet hole 103 runs from the top fuel tank cap connecting body 101 all the way through the first connecting body 102.

[0042] The fixed body A2 is in the shape of a trapezoidal stepped hollow shaft as a whole, with a second connecting body 201 with an internal thread on the top, a third connecting body 202 with an external thread on the bottom, and a second refueling cavity 204 running through the whole inside. A plurality of oil leakage holes 205 are evenly distributed on the bottom of the fixed body A2, and the oil leakage holes 205 can effectively prevent oil thieves from extending the oil extraction pipe into the oil tank. A second air outlet hole 203 running through the whole is also provided on one side of the fixed body A2, wherein the second air outlet hole 203 runs through from the bottom surface of the top second connecting body 201, and runs through horizontally to the middle of the fixed body A2.

[0043] The filter body IIA3 is in the shape of a stepped hollow shaft, with a fourth connecting body 301 with internal threads at the top and a horizontal oil outlet pipe 302 with a third filter screen 303 and a fourth filter screen 304 at the bottom. A hinged rotating piece for preventing backflow is provided at the end of the oil outlet pipe 302. The third filter screen 303 is located at the bend of the oil outlet pipe 302, and the fourth filter screen 304 is located at the end of the oil outlet pipe 302. The interior of the filter body IIA3 is a third refueling cavity 305 that runs through 2 / 3 of the entire body. The third filter screen 303 and the fourth filter screen 304 can effectively prevent oil thieves from extending the oil extraction pipe into the oil tank.

[0044] When the anti-theft refueling device A is installed, multiple array-shaped welding frames 206 extend from the side of the fixed body A2, and the welding frames 206 are directly welded to the inner wall of the oil tank in advance. Then, the first connecting body 102 is threadedly connected to the second connecting body 201; the third connecting body 202 is threadedly connected to the fourth connecting body 301, so that the first refueling cavity 104, the second refueling cavity 204, the third refueling cavity 305 and the oil outlet pipe 302 are connected in series in sequence. Moreover, the first air outlet 103 is connected in series with the second air outlet 203. When refueling, the gas in the oil tank can overflow from the cavities of the second air outlet 203 and the first air outlet 103.

[0045] The oil float anti-theft device B includes a fixed body IB1, a fixed body IIB2 and a fixed body IIIB3; a through hole is opened on the top of the oil tank, the fixed body IB1 is installed from the bottom, the top extends out of the through hole, and the outer side of the fixed body IB1 is welded to the inner side of the top of the oil tank; a disc-shaped fixed body IIIB3 is arranged on the inner side of the fixed body IB1, and a through hole is arranged at the center of the fixed body IIIB3, and this through hole is used to place the oil float B4, and the top of the oil float B4 is installed on the top of the fixed body IIIB3 by bolts; the fixed body IIIB3 and the oil float B4 are placed as a whole on the inner side of the center of the fixed body IB1, and the fixed body IIB2 is installed on the bottom of the center of the fixed body IB1, and the fixed body IIB2 is installed on the bottom of the fixed body IB1 by bolts.

[0046] The gap distance between the fixing body IB1 and the top of the fixing body IIB2 is greater than the thickness of the fixing body IIIB3.

[0047] The setting of the oil float anti-theft device B can ensure that the fixed body IIIB3 and the oil float B4 can rotate as a whole at the top gap between the fixed body IB1 and the fixed body IIB2, preventing oil thieves from stealing oil after removing the oil float B4.

[0048] The fuel tank is formed by welding a number of fuel tank protection plates C, and a number of patterns IC1 and IIC2 arranged at 90 degrees are arranged on the fuel tank protection plate C. The patterns IC1 and IIC2 arranged on the fuel tank protection plate C can reduce the points of force on the surface of the fuel tank protection plate C, preventing oil thieves from using electric drills to drill through the fuel tank protection plate C from the outside to steal oil.

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described above in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0050] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An anti-theft oil tank, characterized in that: It includes an anti-theft refueling device (A) installed at the refueling port on the top of the fuel tank and an oil floating anti-theft device (B) installed on the top of the fuel tank; The anti-theft refueling device (A) comprises a filter body I (A1) located at the top, a fixed body (A2) penetrating the refueling port at the top of the fuel tank, and a filter body II (A3) installed at the bottom of the fixed body (A2); The filter body I (A1) is in the shape of a stepped hollow shaft, with a top portion being a fuel tank cover connecting body (101) protruding outward, a bottom portion being a first connecting body (102) with external threads, and an interior portion being a first refueling cavity (104) penetrating the entire body; a first U-shaped filter screen (105) is installed inside the first refueling cavity (104); a first air outlet (103) penetrating the entire body is also provided on one side of the filter body I (A1), wherein the first air outlet (103) extends from the top fuel tank cover connecting body (101) to the first connecting body (102); The fixed body (A2) is in the shape of a stepped hollow shaft, with a top portion being a second connecting body (201) with an internal thread, a bottom portion being a third connecting body (202) with an external thread, and an interior portion being a second refueling cavity (204) that runs through the entire body; a plurality of oil leakage holes (205) are evenly and densely distributed on the interior bottom of the fixed body (A2); a second air outlet hole (203) that runs through the entire body is also provided on one side of the fixed body (A2), wherein the second air outlet hole (203) starts to penetrate from the bottom surface of the top second connecting body (201), and penetrates horizontally to the middle of the fixed body (A2); The filter body II (A3) is in the shape of a stepped hollow shaft, with a fourth connecting body (301) with internal threads at its top and a horizontal oil outlet pipe (302) with a third filter screen (303) and a fourth filter screen (304) at its bottom. A hinged rotating piece for preventing backflow is provided at the end of the oil outlet pipe (302); wherein the third filter screen (303) is located at the bend of the oil outlet pipe (302), and the fourth filter screen (304) is located at the end of the oil outlet pipe (302); the interior of the filter body II (A3) is a third refueling cavity (305) that runs through 2 / 3 of the entire body; The oil float anti-theft device (B) comprises a fixed body I (B1), a fixed body II (B2) and a fixed body III (B3); a through hole is provided on the top of the oil tank, the fixed body I (B1) is installed from the bottom, the top extends out of the through hole, and the outer side of the fixed body I (B1) is welded to the inner side of the top of the oil tank; a disc-shaped fixed body III (B3) is provided on the inner side of the fixed body I (B1), a through hole is provided at the center of the fixed body III (B3), the through hole is used to place the oil float (B4), and the top of the oil float (B4) is installed on the top of the fixed body III (B3) by bolts; the fixed body III (B3) and the oil float (B4) are placed on the inner side of the center of the fixed body I (B1), the fixed body II (B2) is installed at the bottom of the center of the fixed body I (B1), and the fixed body II (B2) is installed on the bottom of the fixed body I (B1) by bolts.

2. The anti-theft fuel tank according to claim 1, characterized in that: The first connecting body (102) is threadedly connected to the second connecting body (201); the third connecting body (202) is threadedly connected to the fourth connecting body (301); a plurality of array-shaped welding frames (206) extend from the side surface of the fixed body (A2), and the welding frames (206) are directly welded to the inner wall of the oil tank.

3. The anti-theft fuel tank according to claim 1, characterized in that: The first refueling cavity (104), the second refueling cavity (204), the third refueling cavity (305) and the oil outlet pipe (302) are sequentially connected in series.

4. The anti-theft fuel tank according to claim 1, characterized in that: The first air outlet (103) is connected in series to the second air outlet (203); the gas in the oil tank can overflow from the cavities of the second air outlet (203) and the first air outlet (103).

5. The anti-theft fuel tank according to claim 1, characterized in that: The gap distance between the top of the fixing body I (B1) and the fixing body II (B2) is greater than the thickness of the fixing body III (B3).

6. The anti-theft fuel tank according to claim 1, characterized in that: The fuel tank is formed by welding a plurality of fuel tank protection plates (C) to each other, and a plurality of patterns I (C1) and patterns II (C2) arranged at 90 degrees are arranged on the fuel tank protection plates (C).

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