Oil filler anti-theft device and oil tank
By designing the gas pipe seat, gas cover and anti-theft funnel at the fuel tank refueling port of the railway vehicle, combined with the anti-theft cylinder and locking structure, the problem of unsatisfactory anti-theft performance of the fuel tank is solved, and effective anti-theft and smooth filling are achieved.
Patent Information
- Application Number
- CN202422825330.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The anti-theft performance of railway vehicles' fuel tanks is not ideal and is prone to oil stolen.
A gas port anti-theft device is designed, including a gas pipe seat, a gas cap and an anti-theft funnel. The anti-theft funnel has a gradually shrinking limit side wall and oil leakage hole, and combines the anti-theft barrel and locking structure to form a multi-layer anti-theft mechanism.
Effectively prevent the stolen oil pipe from entering the oil tank, while ensuring smooth filling of the oil, reducing the risk of stolen and improving filling efficiency.
Smart Images
Figure CN223237622U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of railway vehicle fuel tanks, and in particular relates to a fuel filler port anti-theft device and a fuel tank. Background Art
[0002] Railway freight vehicles are often equipped with large-capacity fuel tanks to ensure long-distance driving. Typically, the tank's fill port is fitted with a fuel cap, which employs various convenient locking mechanisms to ensure a tight seal. However, these convenient locking mechanisms typically require only unscrewing the cap and inserting a fuel pipe to drain the fuel from the tank, resulting in poor anti-theft performance. Summary of the Invention
[0003] This application provides a fuel filler anti-theft device and a fuel tank, which aims to at least to some extent solve the technical problem of unsatisfactory fuel tank anti-theft performance.
[0004] In one aspect of an embodiment of the present application, a fuel filler anti-theft device is provided, comprising:
[0005] The refueling pipe seat has a refueling channel inside;
[0006] a fuel filler cap detachably connected to the fuel filler pipe seat, and the fuel filler cap is disposed at the first port of the fuel filler passage to seal the fuel filler passage;
[0007] The anti-theft funnel has a first funnel opening and a second funnel opening, the first funnel opening is connected to the second port of the filling channel, and two oppositely arranged limiting side walls are provided between the first funnel opening and the second funnel opening. In the direction from the first funnel opening to the second funnel opening, the distance between the two limiting side walls gradually decreases, and multiple oil leakage holes are opened on the side wall of the anti-theft funnel.
[0008] In some embodiments, the width of the oil leakage hole and the second funnel opening is less than or equal to 7 mm.
[0009] In some embodiments, the fuel filler anti-theft device further comprises an anti-theft cylinder, the anti-theft cylinder being disposed in the filling channel, a sealing member being disposed at one end of the anti-theft cylinder away from the first port, and an oil delivery hole being formed on a cylinder wall of the anti-theft cylinder and the sealing member;
[0010] Wherein, an oil delivery gap is left between the outer wall of the anti-theft cylinder and the inner wall of the filling channel.
[0011] In some embodiments, the fuel filler anti-theft device further includes a first locking member and a second locking member that cooperate with each other, wherein the first locking member is disposed on the fuel filler pipe seat, and the second locking member is disposed on the fuel filler cap.
[0012] In some embodiments, the first locking member and the second locking member are respectively provided with matching through holes.
[0013] In some embodiments, the fuel filler cap is screwed onto the fuel filler pipe seat.
[0014] In some embodiments, a sealing gasket is provided on a surface of the fuel filler cap adjacent to the first port of the filling channel.
[0015] In some embodiments, the gasket is fixed to the fuel filler cap by fasteners.
[0016] In some embodiments, the oil port anti-theft device further includes a chain, one end of the chain is connected to the fuel cap, and the other end of the chain is configured to be connected to the fuel tank.
[0017] Another aspect of the embodiments of the present application further provides a fuel tank, comprising a tank body and the fuel filler port anti-theft device;
[0018] The box body is provided with a refueling port, and the refueling pipe seat and the anti-theft funnel are embedded in the refueling port.
[0019] The embodiments of the present application have at least the following beneficial effects:
[0020] The fuel filler port anti-theft device and fuel tank provided in the embodiment of the present application include a fuel filler pipe seat, an anti-theft funnel and a fuel filler cap, wherein the fuel filler pipe seat is used to be installed in the fuel filler port of the fuel tank, and a filling channel is opened in the fuel filler pipe seat for filling oil; the anti-theft funnel is connected to the fuel filler pipe seat and is blocked at the first port of the filling channel, and the two opposite limiting side walls of the anti-theft funnel are gradually approached to form a limiting structure, which can prevent the oil theft pipe from entering the fuel tank, thereby achieving the purpose of anti-theft; at the same time, in order to take into account both anti-theft reliability and smoothness of oil filling, an oil leakage hole can be opened on the anti-theft funnel to improve the flow efficiency of the oil. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0022] Figure 1 A schematic structural diagram of a fuel filler anti-theft device in an embodiment of the present application is shown;
[0023] Figure 2 Shown Figure 1 A schematic structural diagram of the fuel filler anti-theft device from another angle;
[0024] Figure 3 Shown Figure 2 A cross-sectional view of the fuel filler anti-theft device in FIG.
[0025] Figure 4 Shown Figure 1 Exploded view of the fuel filler anti-theft device in the video;
[0026] Figure 5 Shown Figure 1 A schematic diagram of the structure of the anti-theft funnel of the fuel filler anti-theft device;
[0027] Figure 6 A schematic structural diagram of the fuel tank in an embodiment of the present application is shown.
[0028] Reference numerals:
[0029] 1-fuel pipe seat, 11-fuel flow channel, 111-first port, 112-second port, 12-double-ended screw barrel, 13-oil delivery gap, 14-support boss;
[0030] 2-fuel cap, 21-gasket, 22-bolt, 23-nut, 24-chain;
[0031] 3-anti-theft funnel, 31-first funnel opening, 32-second funnel opening, 33-limiting side wall, 34-oil leakage hole;
[0032] 4-anti-theft cylinder, 41-oil delivery hole, 42-sealing member, 43-circumferential flange;
[0033] 5-locking structure, 51-first locking member, 511-first locking hole, 52-second locking member, 521-second locking hole;
[0034] 6-Box. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0036] In addition, this application may repeat reference numbers and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.
[0037] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:
[0038] Some railway vehicles are equipped with fuel tanks to store fuel for power generation equipment. Typically, the fuel tank's filler port is fitted with a screw-on or flip-top cap, which is easy to operate and provides a reliable seal. However, these easy-to-operate caps can also be easily opened, allowing access to the oil pipe and direct oil extraction, posing a high risk of theft.
[0039] To this end, the embodiments of the present application provide a fuel filler anti-theft device and a fuel tank, which aim to improve the anti-theft performance of the fuel tank to a certain extent and reduce theft losses.
[0040] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 In some embodiments, the fuel filler anti-theft device is disposed in the fuel filler port of the fuel tank, which can restrict the entry of the oil theft pipe into the fuel tank, and can take into account both smooth oil filling and sealing of the fuel tank.
[0041] Specifically, the fuel filler anti-theft device may include: a fuel filler pipe seat 1 , a fuel filler cap 2 and an anti-theft funnel 3 , wherein the fuel filler cap 2 and the anti-theft funnel 3 are connected to the fuel filler pipe seat 1 .
[0042] The fuel filler pipe holder 1 is configured to be installed in the fuel filler port of the fuel tank. A fuel filling channel 11 is provided therein to serve as a fuel filling path, thereby ensuring smooth fuel filling operations. Generally speaking, the fuel filler pipe holder 1 can be directly embedded in the fuel filler port of the fuel tank and fixed to the fuel tank by welding.
[0043] The fuel cap 2 is connected to the fuel pipe seat 1 and can be blocked outside the first port 111 of the filling channel 11 to seal the filling channel 11, thereby achieving sealing of the fuel tank.
[0044] The anti-theft funnel 3 is connected to the fuel filler pipe seat 1 and is configured to be placed inside the fuel tank to prevent the stolen fuel pipe from entering the fuel tank while ensuring that the oil flows smoothly into the fuel tank.
[0045] Specifically, the anti-theft funnel 3 is a funnel-shaped structure with an internal flow channel, capable of stably transporting oil. Furthermore, the anti-theft funnel 3 includes a first funnel opening 31 and a second funnel opening 32. The first funnel opening 31 is connected to the fuel filler pipe socket 1 and mates with the second port 112 of the filling channel 11. Oil flows into the anti-theft funnel 3 through the second funnel opening 31 and out of the second funnel opening 32 before entering the fuel tank.
[0046] In order to restrict the oil theft pipe from entering the fuel tank, limiting side walls 33 are relatively set on both sides of the flow channel of the anti-theft funnel 3. Generally speaking, the relatively set limiting side walls 33 are set between the first funnel opening 31 and the second funnel opening 32, and in the direction from the first funnel opening 31 to the second funnel opening 32, the distance between the two limiting side walls 33 gradually decreases, forming a gradually narrowing flow channel cavity, thereby preventing the oil theft pipe from entering the fuel tank.
[0047] It is worth noting that since fuel refueling also needs to pass through the anti-theft funnel 3, the narrow flow channel cavity is not conducive to the flow of oil, which reduces the refueling efficiency to a certain extent. To this end, an oil leakage hole 34 can be opened on the side wall of the anti-theft funnel 3 to increase the path for oil to exit the anti-theft funnel 3, thereby improving the oil flow efficiency.
[0048] The fuel filler port anti-theft device and fuel tank provided in the embodiment of the present application include a fuel filler pipe seat, an anti-theft funnel and a fuel filler cap, wherein the fuel filler pipe seat is used to be installed in the fuel filler port of the fuel tank, and a filling channel is opened in the fuel filler pipe seat for filling oil; the anti-theft funnel is connected to the fuel filler pipe seat and is blocked at the first port of the filling channel, and the two opposite limiting side walls of the anti-theft funnel are gradually approached to form a limiting structure, which can prevent the oil theft pipe from entering the fuel tank, thereby achieving the purpose of anti-theft; at the same time, in order to take into account both anti-theft reliability and smoothness of oil filling, an oil leakage hole can be opened on the anti-theft funnel to improve the flow efficiency of the oil.
[0049] In some embodiments, in order to further increase the difficulty of stealing oil from the oil pipe and take into account the efficiency of filling oil, the specifications of the oil leakage hole 34 and the second funnel mouth 32 can be limited to 7 mm or less; usually, the specifications of the oil leakage hole 34 and the second funnel mouth 32 can be set to 7 mm.
[0050] It is worth noting that the design of the oil leakage hole 34 and the second funnel mouth 32 can reduce the difficulty of the oil theft pipe entering to a certain extent, but considering the need to add oil, the specifications of the oil leakage hole 34 and the second funnel mouth 32 must not be too small. Of course, small or even ultra-small oil theft pipes may also be inserted into the fuel tank, but the amount of oil that can be absorbed by such specifications of the oil theft pipe is also limited. Therefore, to a certain extent, it can reduce the loss caused by theft and achieve the purpose of anti-theft.
[0051] In some embodiments, in order to further enhance the anti-theft effect, the fuel filler port anti-theft device may further include an anti-theft cylinder 4, which is arranged in the filling channel 11, and an oil delivery hole 41 is opened on the anti-theft cylinder 4, thereby maintaining the smooth flow of oil in the filling channel 11.
[0052] It is worth mentioning that the anti-theft cylinder 4 provided with the oil delivery hole 41 cooperates with the anti-theft funnel 3, thereby increasing the difficulty of stealing the oil pipe into the fuel tank through a two-stage anti-theft structure; generally speaking, the stolen oil pipe needs to pass through the oil delivery hole 41 and the oil leakage hole 34 continuously, which is much more difficult than passing through the oil leakage hole 34 alone; especially under the working conditions inside the fuel tank with poor visual conditions, the oil pipe is in an uncontrollable shape, and it is extremely difficult to steal the oil pipe into the fuel tank.
[0053] Generally speaking, in order to improve the oil flow efficiency, the anti-theft cylinder 4 is a cylinder-shaped part, and the end of the anti-theft cylinder 4 is away from the first end 111 of the filling channel 11, and is blocked by a sealing part 42, and the oil delivery hole 41 is respectively opened on the anti-theft cylinder 4 and the sealing part 42, so that the anti-theft function and the oil passing ability can be well taken into account.
[0054] In some embodiments, in order to improve the flow efficiency of the oil, the specifications of the anti-theft cylinder 4 can be controlled so that a certain oil delivery gap 13 is left between the circumferential outer wall of the anti-theft cylinder 4 and the inner wall of the filling channel 11 to facilitate the oil to flow out from the circumferential side wall of the anti-theft cylinder 4, so as to accelerate the flow of oil.
[0055] In some embodiments, a locking structure 5 may be further provided between the fuel cap 2 and the fuel pipe seat 1 to increase the difficulty of unconventional opening of the fuel cap 2 .
[0056] Specifically, the fuel filler port anti-theft device also includes a first locking member 51 and a second locking member 52, which are respectively fixed to the fuel filler cap 2 and the fuel filler pipe seat 1, and can be locked by a locking member such as a lock head and can only be unlocked by a corresponding key, thereby increasing the anti-theft performance.
[0057] In some embodiments, lock holes may be provided on the first locking member 51 and the second locking member 52 to facilitate the insertion and locking of the lock head.
[0058] In some embodiments, the fuel cap 2 can be screwed onto the fuel pipe seat 1 and can be locked or unlocked by rotating it.
[0059] In coordination, the first locking member 51 and the second locking member 52 can be configured as disc-shaped members, and a plurality of first locking holes 511 and second locking holes 521 can be arranged at intervals along the circumferential direction, respectively. The first locking member 51 rotates with the fuel cap 2, so that the first locking hole 511 of the first locking member 51 rotates to a state of matching and aligning with the second locking hole 521 on the second locking member 52, thereby facilitating locking of the lock head.
[0060] In some embodiments, in order to enhance the sealing performance, a sealing gasket 21 may be provided in the fuel cap 2, that is, the sealing gasket 21 is provided on the surface of the first port 111 of the fuel cap 2 close to the filling channel 11; when the fuel cap 2 is locked, the sealing gasket 21 is pressed to seal the filling channel 11, thereby sealing the fuel tank.
[0061] Generally speaking, the sealing gasket 21 can be made of a high-temperature-resistant and cold-resistant rubber sealing gasket.
[0062] Generally, in order to ensure the installation stability of the sealing gasket 21 , the sealing gasket 21 may be fixed to the fuel filler cap 2 by fasteners.
[0063] For example, the sealing gasket 21 may be pressed against the fuel filler cap 2 by means of a bolt 22 and a nut 23 provided on the fuel filler cap 2 .
[0064] The bolt can also be passed through a through hole provided on the fuel filler cap 2 , and the chain 24 can be connected to the bolt.
[0065] In some embodiments, in order to prevent the fuel cap 2 from being left behind, a chain 24 may be provided on the fuel cap 2 for connecting to the fuel pipe socket 1 or the fuel tank.
[0066] In some embodiments, the fuel filler pipe seat 1 can be welded inside the fuel port of the fuel tank, and part of the fuel filler pipe seat 1, the anti-theft funnel 3 and the anti-theft cylinder 4 are arranged in the fuel tank; and a threaded connection structure adapted to the fuel cap 2 can be opened on the fuel filler pipe seat 1.
[0067] In some embodiments, considering the structural complexity of the fuel filler pipe seat 1 and the anti-theft funnel 2, in order to facilitate processing and assembly, the fuel filler pipe seat 1 can be set as a short cylindrical part and equipped with a double-ended screw barrel 12. The inner cylinder wall of the fuel filler pipe seat 1 is provided with an internal thread, which is screwed to the double-ended screw barrel 12.
[0068] The inner wall of the fuel filler pipe seat 1 is provided with a supporting boss 14 for supporting the circumferential flange 43 on the outer wall of the anti-theft cylinder 4 and for pressing it with the stud screw 12. Thus, during assembly, the anti-theft cylinder 4 is simply inserted into the fuel filler pipe seat 1 and pressed with the stud screw 12.
[0069] The double-ended screw barrel 12 is provided with a flow channel inside for filling fuel and transporting fuel into the fuel filler pipe seat 1.
[0070] See also Figure 6 In some embodiments, a fuel tank is further provided, including a tank body 6 and the fuel filler anti-theft device; the tank body 6 is provided with a fuel filler, and the fuel filler pipe seat 1 and the anti-theft funnel 4 are embedded in the fuel filler.
[0071] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0072] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0073] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0074] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0075] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.
[0076] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.
[0077] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0078] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A fuel filler anti-theft device, characterized in that: include: The refueling pipe seat has a refueling channel inside; a fuel filler cap detachably connected to the fuel filler pipe seat, and the fuel filler cap is disposed at the first port of the fuel filler passage to seal the fuel filler passage; The anti-theft funnel has a first funnel opening and a second funnel opening, the first funnel opening is connected to the second port of the filling channel, and two oppositely arranged limiting side walls are provided between the first funnel opening and the second funnel opening. In the direction from the first funnel opening to the second funnel opening, the distance between the two limiting side walls gradually decreases, and multiple oil leakage holes are opened on the side wall of the anti-theft funnel.
2. The fuel filler port anti-theft device according to claim 1, characterized in that: The width specification of the oil leakage hole and the second funnel opening is less than or equal to 7 mm.
3. The fuel filler port anti-theft device according to claim 1, characterized in that: The fuel filler port anti-theft device further includes an anti-theft cylinder, which is disposed in the filling flow channel. A sealing member is disposed at one end of the anti-theft cylinder away from the first port, and oil delivery holes are formed on the cylinder wall of the anti-theft cylinder and the sealing member. Wherein, an oil delivery gap is left between the outer wall of the anti-theft cylinder and the inner wall of the filling channel.
4. The fuel filler port anti-theft device according to claim 1, characterized in that: The fuel filler port anti-theft device further comprises a first locking member and a second locking member that cooperate with each other. The first locking member is arranged on the fuel filler pipe seat, and the second locking member is arranged on the fuel filler cap.
5. The fuel filler port anti-theft device according to claim 4, characterized in that: The first locking piece and the second locking piece are respectively provided with matching through holes.
6. The fuel filler port anti-theft device according to any one of claims 1 to 5, characterized in that: The fuel filler cap is screwed onto the fuel filler pipe seat.
7. The fuel filler port anti-theft device according to claim 6, characterized in that: A sealing gasket is provided on a surface of the fuel filler cap close to the first port of the filling flow channel.
8. The fuel filler port anti-theft device according to claim 7, characterized in that: The sealing gasket is fixed to the fuel filler cap by a fastener.
9. The fuel filler port anti-theft device according to claim 6, wherein: The fuel filler anti-theft device further includes a chain, one end of which is connected to the fuel filler cap, and the other end of which is configured to be connected to the fuel tank.
10. A fuel tank, characterized in that: It comprises a box body and the fuel filler anti-theft device according to any one of claims 1 to 9; The box body is provided with a refueling port, and the refueling pipe seat and the anti-theft funnel are embedded in the refueling port.