Anti-theft device suitable for fuel tank of transport vehicle
By installing an extension and a reversing seal plate under the fuel tank refueling port, combining the elastic seal and flexible hose, the problem of the failure of the prior art to prevent destructive oil theft is solved, and effective anti-theft and anti-theft device for diesel is achieved. Improved performance, suitable for most trailer fuel tanks.
Patent Information
- Application Number
- CN202420052961.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-09
AI Technical Summary
The existing fuel tank anti-theft device cannot effectively prevent destructive oil theft and cannot cope with the modification needs of most trailer fuel tanks.
An anti-theft device including an anti-theft upper pipe, an elastic sealing part, a flexible hose, a fence part, an extension part, a stop sealing plate and a sealing plate return spring is designed. The extension part and a stop sealing plate are installed below the fuel tank refueling port. , use elastic sealing parts and flexible hose to prevent oil theft, and enhance the anti-theft effect through sealing structure and sealing ring.
It effectively prevents diesel from being stolen and prevents criminals from destroying anti-theft devices, adapts to the modification needs of most trailer fuel tanks, and has a simple structure and is easy to install.
Smart Images
Figure CN222202259U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-theft device for an oil tank, in particular to an anti-theft device suitable for an oil tank of a transport vehicle. Background Art
[0002] Automobile transportation is one of the important pillars of modern logistics industry. A large amount of goods are transported to where they are needed through automobile logistics. The routes of automobile logistics often need to cross multiple regions. The external fuel tank of the truck and the large amount of diesel in it have become the target of a small number of criminals. At present, criminals mainly steal oil by prying open the fuel tank cap and then inserting a pipe into the fuel tank. The stolen diesel has caused a lot of economic losses to the truck owners and affected the normal operation of logistics.
[0003] At present, the utility model with patent number CN204895121U discloses an oil filter anti-theft oil tank refueling port, which belongs to the technical field of improvement of vehicle oil tanks. The purpose of the utility model is to filter impurities in oil products and enhance the anti-theft effect of the oil filter anti-theft oil tank refueling port through the modification of the refueling port. The oil tank of the utility model divides the refueling port into two parts, the outer part is the outer refueling port, and the inner part is the inner refueling port. A filter bracket is fixedly installed on the inner wall of the outer refueling port, and a filter device is placed inside the refueling port. The filter device is composed of a bracket and a filter. The filter is fixedly installed under the bracket, and the filter device is installed by the bracket and the filter bracket. The bottom surface and the side surface of the inner refueling port are a one-side molding structure, and oil leakage holes are opened on the side and bottom surface of the inner refueling port. The utility model has a simple structure and is easy to install and use. Since the bottom surface and the side surface of the inner refueling port are a one-time molding structure, the strength of the refueling port is increased, preventing oil thieves from easily destroying the refueling port to steal oil products. However, this patent mainly adopts the method of opening an oil leakage hole on the inner fuel filler port to prevent the oil theft pipe from entering the fuel tank. Since the inner fuel filler port itself has a limited size and is made of a relatively hard material, once a thief inserts a long metal rod into it, he can use the outer fuel filler port as a fulcrum and use the lever principle to destroy the inner fuel filler port, so that a hole large enough for the oil theft pipe to be inserted is opened on the inner fuel filler port, and the diesel is stolen. Therefore, this patent cannot effectively deal with destructive oil theft. Summary of the invention
[0004] In view of the above problems existing in the prior art, the utility model provides an anti-theft device suitable for a fuel tank of a transport vehicle, which can effectively prevent diesel from being stolen and prevent criminals from destroying the anti-theft device, and can also adapt to the modification of most trailer fuel tanks.
[0005] In order to achieve the above-mentioned purpose, the utility model is suitable for an anti-theft device for a fuel tank of a transport vehicle, comprising an anti-theft upper tube, an elastic sealing portion, a spring, a flexible hose, a fence portion, an extension portion, a fence plate, a return seal plate, a seal plate reset spring, and a seal plate. The anti-theft upper tube is fixedly installed on the inner side of the fuel tank filling port, the lower end of the anti-theft upper tube is connected to the extension portion through the elastic sealing portion, and the return seal plate is fixedly installed on the lower end of the extension portion; a through hole is annularly opened on the surface of the extension portion near the elastic sealing portion to form a fence portion; and a fence plate is installed on the cross section of the inner side of the extension portion near the bottom.
[0006] In addition, the anti-theft device for the fuel tank of a transport vehicle proposed in the above embodiment of the utility model may also have the following additional technical features:
[0007] As a further improvement of the utility model, the lower end of the anti-theft upper tube and the upper end of the extension part are sealed and connected by a flexible hose, and a spring is provided outside the flexible hose, and the upper and lower ends of the spring are respectively fixedly connected to the lower end of the anti-theft upper tube and the upper end of the extension part.
[0008] As a further improvement scheme of the utility model, the return sealing plate includes a sealing plate reset spring and a sealing plate, the sealing plate is divided into a fixed plate and an opening and closing plate, the fixed plate is fixedly connected to the lower opening of the extension part, the opening and closing plate is connected to the fixed plate through a rotating shaft, the sealing plate is circular as a whole, and the surface is provided with sealant, and the opening and closing plate is connected to the fence plate through the sealing plate reset spring.
[0009] As a further improvement of the utility model, a sealing rubber ring is provided on the outer side surface of the anti-theft upper tube.
[0010] As a further improvement of the utility model, the upper edge of the anti-theft upper tube is fifteen to twenty centimeters away from the upper edge of the fuel tank filling port.
[0011] Through the above scheme, the utility model has at least the following advantages: compared with conventional fuel tanks, by adding an extension part and a check seal plate under the crude oil tank opening, the diesel can be effectively prevented from being stolen. At the same time, with the help of the elastic sealing part between the extension part and the anti-theft upper tube, even if criminals use a long rod to pry, the extension part will only move with the long rod without being damaged. This can effectively prevent the diesel from being stolen and prevent criminals from damaging the anti-theft device. At the same time, since the application result is simple, it can adapt to most trailer fuel tank modifications. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a top-view stereoscopic schematic diagram of an anti-theft device applicable to a fuel tank of a transport vehicle;
[0013] Figure 2 It is a bottom-view stereogram of an anti-theft device applicable to a fuel tank of a transport vehicle;
[0014] Figure 3 yes Figure 1A side cross-sectional view of
[0015] In the figure: 1, anti-theft upper tube, 2, elastic sealing part, 2-1, spring, 2-2, flexible hose, 3, fence part, 4, extension part, 4-1, fence plate, 5, return sealing plate, 5-1, sealing plate reset spring, 5-2, sealing plate. DETAILED DESCRIPTION
[0016] The anti-theft device applicable to the fuel tank of a transport vehicle according to an embodiment of the utility model will be described below with reference to the accompanying drawings.
[0017] In the specific implementation mode 1 of the present application, Figure 1 and Figure 2 As shown, the anti-theft device suitable for the fuel tank of a transport vehicle (hereinafter referred to as "this application") comprises an anti-theft upper tube 1, an elastic sealing portion 2, a spring 2-1, a flexible rubber hose 2-2, a fence portion 3, an extension portion 4, a fence plate 4-1, a return sealing plate 5, a sealing plate reset spring 5-1, and a sealing plate 5-2. The anti-theft upper tube 1 is fixedly mounted on the inner side of the fuel tank filling port. The installation is convenient and easy, and there is no need to change the production line. It only needs to be pushed in from the fuel tank filling port. During installation, care should be taken to prevent the anti-theft upper tube 1 from detaching from the fuel tank filling port. The lower end of the anti-theft upper tube 1 is connected to the extension portion 4 through the elastic sealing portion 2. The return sealing plate 5 is fixedly mounted on the lower end of the extension portion 4. The return sealing plate 5 can ensure that diesel can enter the fuel tank and prevent diesel from flowing back to the extension portion 4 when criminals steal oil; a through hole is provided in an annular manner on the surface of the extension portion 4 close to the elastic sealing portion 2 to form a fence portion 3; a fence plate 4-1 is installed on the cross section of the inner side of the extension portion 4 close to the bottom. The fence plate 4-1 can effectively prevent the long rod or the straw from touching the return sealing plate 5, thereby preventing the diesel from flowing back.
[0018] The utility model number is CN204895121U, an oil filter anti-theft fuel tank refueling port (hereinafter referred to as "the patent"). The patent mainly adopts the method of opening an oil leakage hole on the inner refueling port to prevent the oil theft pipe from entering the fuel tank. Since the inner refueling port itself is limited in size and the material is relatively hard, once a thief inserts a long metal rod into it, he can use the outer refueling port as a fulcrum and use the lever principle to destroy the inner refueling port, so that a hole large enough for the oil theft pipe to be inserted is opened on the inner refueling port to steal the diesel. Therefore, the patent cannot deal with destructive oil theft well. The present application uses an elastic sealing portion 2 between the extension portion 4 and the anti-theft upper tube 1, so that even if the criminals use a long rod to pry it, the extension portion 4 will only move with the long rod without being damaged, which can effectively prevent criminals from destroying the anti-theft device.
[0019] The second embodiment is based on the first embodiment, and the other structures are the same, the only difference is that Figures 1 to 3As shown, the lower end of the anti-theft upper tube 1 and the upper end of the extension 4 are sealed and connected by a flexible hose 2-2. A spring 2-1 is provided outside the flexible hose 2-2. The upper and lower ends of the spring 2-1 are respectively fixedly connected to the lower end of the anti-theft upper tube 1 and the upper end of the extension 4. The return seal 5 includes a seal reset spring 5-1 and a seal 5-2. The seal 5-2 is divided into a fixed plate and an opening and closing plate. The fixed plate is fixedly connected to the lower opening of the extension 4. The opening and closing plate is connected to the fixed plate through a rotating shaft. The seal 5-2 is circular as a whole, and a sealant is provided on the surface. The opening and closing plate is connected to the fence plate 4-1 through the seal reset spring 5-1. The seal reset spring 5-1 can help the opening and closing plate of the seal 5-2 to open and close as needed, so that it can be opened downward when refueling to allow diesel to enter the fuel tank. It can also prevent the diesel in the extension 4 from being stolen and close the extension 4 in time to prevent the fuel tank from being stolen.
[0020] In order to further optimize the working efficiency of the application, to further enhance the sealing performance, and to prevent the application from being pulled out and causing anti-theft failure, a sealing rubber ring is provided on the outer surface of the anti-theft upper tube 1. In order to further improve safety, the upper edge of the anti-theft upper tube 1 is 15 to 20 centimeters away from the upper edge of the fuel tank filling port.
[0021] When in use, install the anti-theft device suitable for the fuel tank of the transport vehicle and insert it into the fuel tank of the trailer.
[0022] When the utility model is in use, the specific operations are as follows:
[0023] When refueling, the diesel enters from the anti-theft upper tube 1, passes through the elastic sealing part 2, and a part of it overflows from the fence part 3 into the fuel tank, and the other part enters the extension part 4. As the diesel liquid level in the extension part 4 is higher than the liquid level in the fuel tank, the diesel in the extension part 4 pushes open the sealing plate 5-2 of the return seal plate 5 and enters the fuel tank.
[0024] During operation, criminals insert the hose into the application and extract some diesel in the extension part 4. Since the diesel on the left and right sides of the sealing plate 5-2 will not flow back to the extension part 4, and since criminals themselves are more confident, after extracting a little diesel, they find that they cannot extract diesel, and they may think that there is no diesel in the tank, and then leave immediately to avoid being caught. If criminals find the application and decide to destroy it, they will insert the metal rod to pry it. At this time, the elastic sealing part 2 between the extension part 4 and the anti-theft upper tube 1 will make the criminals use a long rod to pry, and only the extension part 4 will move with the long rod without being damaged. A simple poke will not damage the tank, thereby preventing theft and ensuring the safety of the tank and the device itself.
[0025] In summary, the anti-theft device suitable for the fuel tank of a transport vehicle in the embodiment of the utility model can effectively prevent the diesel from being stolen by adding an extension part 4 and a check seal plate 5 under the crude oil tank opening. At the same time, with the help of the elastic sealing part 2 between the extension part 4 and the anti-theft upper tube 1, even if criminals use a long rod to pry, only the extension part 4 will move with the long rod without being damaged. This can effectively prevent the diesel from being stolen and prevent criminals from damaging the anti-theft device. At the same time, since the application result is simple, it can adapt to the modification of most trailer fuel tanks.
[0026] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. An anti-theft device for a fuel tank of a transport vehicle, comprising an anti-theft upper tube (1), It is characterized in that The anti-theft upper tube (1) is fixedly installed on the inner side of the fuel tank filling port; the lower end of the anti-theft upper tube (1) is connected to the extension part (4) through the elastic sealing part (2); the lower end of the extension part (4) is fixedly installed with a return sealing plate (5); a through hole is provided in an annular manner on the surface of the extension part (4) close to the elastic sealing part (2) to form a fence part (3); and a fence plate (4-1) is installed on the cross section of the inner side of the extension part (4) close to the bottom.
2. The anti-theft device for a fuel tank of a transport vehicle according to claim 1, It is characterized in that The lower end of the anti-theft upper tube (1) and the upper end of the extension part (4) are sealed and connected by a flexible rubber hose (2-2). A spring (2-1) is arranged outside the flexible rubber hose (2-2). The upper and lower ends of the spring (2-1) are respectively fixedly connected to the lower end of the anti-theft upper tube (1) and the upper end of the extension part (4).
3. The anti-theft device for the fuel tank of a transport vehicle according to claim 2, It is characterized in that The return sealing plate (5) comprises a sealing plate reset spring (5-1) and a sealing plate (5-2), wherein the sealing plate (5-2) is divided into a fixed plate and an opening and closing plate, wherein the fixed plate is fixedly connected to the lower opening of the extension portion (4), and the opening and closing plate is connected to the fixed plate via a rotating shaft, the sealing plate (5-2) is circular as a whole, and a sealing adhesive is provided on the surface, and the opening and closing plate is connected to the fence plate (4-1) via the sealing plate reset spring (5-1).
4. The anti-theft device for a fuel tank of a transport vehicle according to claim 1, It is characterized in that The outer surface of the anti-theft upper tube (1) is provided with a sealing rubber ring.
5. The anti-theft device for a fuel tank of a transport vehicle according to claim 1 or 4, It is characterized in that The upper edge of the anti-theft upper tube (1) is 15 to 20 centimeters away from the upper edge of the fuel tank filling port.