Fuel system leakage detection device and vehicle

Abstract

The utility model provides a fuel system leakage detection device and a vehicle. The fuel system leakage detection device comprises a mounting column, a mounting bracket and a positioning part, a mounting channel is formed in the mounting bracket, the mounting bracket is hermetically connected to the outer side of the oil tank, and the mounting channel communicates with the interior of the oil tank; the inner wall of the mounting channel is sunken to form a sliding groove, the sliding groove extends in the circumferential direction of the mounting channel, and at least part of the positioning part is arranged in the sliding groove; a clamping block is convexly arranged on the outer side of the mounting column, the mounting column is inserted into and leaves the mounting channel to drive the clamping block to enter and leave the sliding groove, and the clamping block can be clamped with and separated from the positioning part in the sliding groove; the outer side of the mounting column is hermetically connected with the inner wall of the mounting channel; a detector is arranged at the end, close to the interior of the oil tank, of the mounting column, the clamping block and the positioning part are clamped and separated so that the mounting column can be stably arranged on the mounting support and can be pulled out of the mounting support, and the detector can conveniently detect the oil tank and replace and maintain the detector.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a fuel system leakage detection device and a vehicle. Background Art

[0002] Fuel system leaks can cause fuel to volatilize into the atmosphere, causing environmental pollution. A detection device is typically installed on the fuel tank, with the detection end of the device extending into the tank to detect leaks. Promptly detecting leaks can reduce environmental pollution, minimize fuel loss, improve fuel economy, and ensure vehicle safety.

[0003] However, when installing the existing fuel system leakage detection device, the detection device needs to be fixed on a special bracket first, and then the bracket is installed on the fuel tank using bolts and nuts. When the detection device needs to be removed for inspection or replacement, the worker needs to bend down and twist the bolts and nuts on the detection device. Only after the bolts and nuts are removed can the detection device be removed, and then the detection device can be replaced or repaired. The replaced or repaired detection device needs to be installed on the special bracket again, and then the special bracket is installed on the fuel tank by bolts, which makes the operation of removing and installing the fuel system leakage detection device cumbersome and affects the efficiency of workers in removing and installing the fuel system leakage detection device. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a fuel system leakage detection device and a vehicle.

[0005] The present disclosure provides a fuel system leakage detection device, comprising a mounting post, a mounting bracket, and a positioning portion;

[0006] A mounting channel is provided in the mounting bracket, the mounting bracket is used to be sealed and connected to the outside of the fuel tank, and the mounting channel is communicated with the interior of the fuel tank;

[0007] The inner wall of the installation channel is recessed to form a sliding groove, the sliding groove extends along the circumference of the installation channel, and at least part of the positioning portion is disposed in the sliding groove;

[0008] A snap-fit block is protruded from the outer side of the mounting post, and the mounting post is inserted into and removed from the mounting channel to drive the snap-fit block to enter and leave the sliding groove, and the snap-fit block can be snapped into and separated from the positioning portion in the sliding groove; the outer side of the mounting post is sealed with the inner wall of the mounting channel, and a detector is provided at one end of the mounting post close to the interior of the oil tank.

[0009] Optionally, the sliding groove includes two side walls that are opposite to each other along the extension direction of the mounting channel;

[0010] The inner wall of the mounting channel, located on the side of the sliding groove facing away from the oil tank, is recessed to form an entry and exit groove, one end of the entry and exit groove is connected to the sliding groove, and the other end extends in a direction away from the sliding groove to the end of the mounting channel away from the oil tank, so that the clamping block enters and leaves the sliding groove through the entry and exit groove;

[0011] Along the circumference of the mounting post, the entry and exit slots are spaced apart from the positioning portion. The mounting post rotates relative to the mounting channel to drive the connecting block to slide along the sliding slot, so that the connecting block and the positioning portion are connected or separated from each other.

[0012] Optionally, a mounting hole communicating with the sliding groove is provided on a side of the mounting bracket facing away from the oil tank; the positioning portion includes a clamping member and a driving member, the clamping member being slidably disposed in the sliding groove along an extension direction of the mounting channel, and the driving member being passed through the mounting hole and connected to the clamping member;

[0013] The clamping block is located in the sliding groove on the side of the clamping member facing the oil tank. When the clamping block slides along the sliding groove to a position opposite to the clamping member along the extension direction of the installation channel, the driving member drives the clamping member to slide relative to the sliding groove to be clamped and connected with the clamping block and separated from each other.

[0014] Optionally, the driving member includes a screw, and the clamping member includes a limiting block;

[0015] The bottom of the sliding groove is recessed to form a movable groove, and the movable groove extends along the extension direction of the mounting channel. One end of the limit block is slidably connected to the movable groove along the extension direction of the mounting channel, and the other end is located in the sliding groove. The part of the limit block located in the movable groove is provided with a screw hole, and the mounting hole and the screw hole are coaxially arranged. One end of the screw is threadedly connected to the screw hole, and the other end passes through the mounting hole and is exposed to the outside of the mounting bracket, and the screw is rotatably connected to the mounting hole; the limit block is provided with a limit groove on the side facing the oil tank, and the clamping block can be inserted into the limit groove so that the limit groove limits the movement of the clamping block relative to the mounting bracket.

[0016] Optionally, the mounting bracket includes a side plate, a first mounting plate and a second mounting plate;

[0017] The first mounting plate and the second mounting plate are arranged opposite to each other, a first through hole is provided on the first mounting plate, and a second through hole is provided on the second mounting plate, and the first through hole and the second through hole are coaxial, so that the mounting post is passed through the first through hole and the second through hole;

[0018] The side plate surrounds the axis of the first through hole and the second through hole and is connected between the first mounting plate and the second mounting plate, and the side plate, the first mounting plate and the second mounting plate form the sliding groove;

[0019] The inlet and outlet grooves are arranged on the first through hole, the side of the second mounting plate facing away from the first mounting plate is sealedly connected to the outer side of the oil tank, the mounting hole is arranged on the first mounting plate, and the movable groove is formed on the side plate; the inner wall of the second through hole is sealedly connected to the outer side of the mounting column.

[0020] Optionally, the number of the positioning parts is two, the number of the clamping blocks is two, the sliding groove is an annular groove surrounding the axis of the mounting channel, the two positioning parts are arranged opposite to each other along the radial direction of the mounting channel, and the two clamping blocks are arranged opposite to each other on the outside of the mounting column along the radial direction of the mounting column, and the two clamping blocks can be connected to the two positioning parts one by one.

[0021] Optionally, the interior of the mounting column has a accommodating cavity, a power supply is provided in the accommodating cavity, the detector is electrically connected to the power supply, the detector is arranged in the accommodating cavity, and a detection hole is provided at one end of the mounting column close to the oil tank, and part of the detector extends out of the accommodating cavity through the detection hole.

[0022] Optionally, a heating device for performing heat exchange with the interior of the oil tank is provided on a side of the mounting column facing the oil tank.

[0023] Optionally, the heating device includes a protective tube, a heating element, and a temperature measuring assembly, wherein the protective tube is connected to the mounting column, a communicating hole is provided on the protective tube, and the heating element and the temperature measuring assembly are arranged in the protective tube;

[0024] And / or, a controller is provided on the mounting column, and the controller is electrically connected to the heating device.

[0025] The present disclosure also provides a vehicle, comprising a fuel tank and a fuel system leakage detection device as described in any one of the above items; a detection hole is provided on the fuel tank, the mounting bracket is sealingly connected to a side of the fuel tank where the detection hole is provided, the mounting channel is connected to the detection hole, and the end of the mounting column where the detector is provided enters the interior of the fuel tank through the detection hole.

[0026] The technical solution provided by the present disclosure has the following advantages compared with the existing technology:

[0027] The fuel system leakage detection device and vehicle provided by the present disclosure include a fuel system leakage detection device comprising a mounting post, a mounting bracket and a positioning portion; a mounting channel is provided in the mounting bracket, the mounting bracket is used to be sealed and connected to the outside of the fuel tank, and the mounting channel is connected to the interior of the fuel tank; a sliding groove is formed in a depression on the inner wall of the mounting channel, and the sliding groove extends along the circumference of the mounting channel, and at least part of the positioning portion is provided in the sliding groove; a clamping block is convexly provided on the outer side of the mounting post, and the mounting post is inserted into and out of the mounting channel to drive the clamping block to enter and leave the sliding groove, and the clamping block can be clamped and separated from the positioning portion in the sliding groove; the outer side of the mounting post is sealed and connected to the inner wall of the mounting channel, ensuring the sealing of the fuel system leakage detection device when installed on the fuel tank and preventing the liquid in the fuel tank from leaking through the mounting channel; a detector is provided at one end of the mounting post close to the interior of the fuel tank, and the detector is used to detect whether there is a leakage problem in the fuel tank. When the mounting post is inserted into the mounting channel so that the clamping block enters the sliding groove and is connected to the positioning portion, the mounting post is restricted in the mounting channel and cannot move relative to the mounting bracket, so that the mounting post is installed on the mounting bracket, and the detector can be stably positioned in the fuel tank to detect leakage problems; the clamping block is separated from the positioning portion so that the mounting post can be moved relative to the mounting bracket, so that the mounting post can be withdrawn from the mounting channel to replace and repair the detector, thereby improving the operational convenience of installing and disassembling the fuel system leakage detection device, thereby improving the operational efficiency of installing and disassembling the fuel system leakage detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0029] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1 This is a schematic structural diagram of the fuel system leakage detection device according to an embodiment of the present disclosure when installed on a fuel tank;

[0031] Figure 2 A partial cross-sectional view of the fuel system leakage detection device according to an embodiment of the present disclosure when installed on a fuel tank;

[0032] Figure 3 A partial cross-sectional view of the mounting bracket according to an embodiment of the present disclosure;

[0033] Figure 4 It is a partial cross-sectional view of the mounting block according to the embodiment of the present disclosure.

[0034] Reference numerals:

[0035] 1. Mounting column; 11. Clamping block; 12. Accommodating cavity; 13. Detector; 14. Power supply; 15. Controller; 2. Mounting bracket; 21. First mounting plate; 211. First through-hole; 22. Second mounting plate; 221. Second through-hole; 23. Side plate; 24. Sliding groove; 25. Entry and exit groove; 26. Movable groove; 3. Positioning part; 31. Driving member; 32. Clamping member; 321. Limiting groove; 4. Heating device; 41. Protective tube; 411. Connecting hole; 42. Heating member; 43. Temperature measuring component; 5. Fuel tank. DETAILED DESCRIPTION

[0036] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0038] Reference Figures 1 to 4 As shown, the embodiment of the present disclosure provides a fuel system leakage detection device, including a mounting column 1, a mounting bracket 2 and a positioning portion 3; a mounting channel is provided in the mounting bracket 2, and the mounting bracket 2 is used to be sealed and connected to the outside of the fuel tank 5, and the mounting channel is connected to the inside of the fuel tank 5; a sliding groove 24 is formed in a depression on the inner wall of the mounting channel, and the sliding groove 24 extends along the circumference of the mounting channel, and at least part of the positioning portion 3 is arranged in the sliding groove 24; a clamping block 11 is convexly provided on the outer side of the mounting column 1, and the mounting column 1 is inserted into and out of the mounting channel to drive the clamping block 11 to enter and leave the sliding groove 24, and the clamping block 11 can be clamped and separated with the positioning portion 3 in the sliding groove 24; the outer side of the mounting column 1 is sealed and connected to the inner wall of the mounting channel, and a detector 13 is provided at one end of the mounting column 1 close to the inside of the fuel tank 5.

[0039] Specifically, in order to detect the interior of the fuel tank 5, a detection hole is usually set on the fuel tank 5. The detector 13 can be inserted into the fuel tank through the detection hole, or the detector 13 is inserted into the interior of the fuel tank 5 through the refueling hole of the fuel tank 5. The detector 13 can be selected as a pressure detector. The detector 13 detects the changes in the pressure in the fuel tank 5 to detect whether the fuel tank 5 is leaking oil. Of course, the detector 13 can also be selected to detect the liquid level position of the liquid in the fuel tank 5, and detect whether the fuel tank 5 is leaking oil by detecting the changes in the surface position of the liquid in the fuel tank 5.

[0040] The above-mentioned mounting bracket 2 can be selected as a cylindrical bracket, and the interior of the mounting bracket 2 is provided with a mounting channel that passes through the mounting bracket 2 along the extension direction of the mounting bracket 2; the mounting bracket 2 is arranged on the outside of the fuel tank 5, and the mounting channel is arranged opposite to the detection hole of the fuel tank 5, so that the mounting channel is connected to the interior of the fuel tank 5, and one side of the mounting bracket 2 is fitted with the outer side of the fuel tank 5 and then welded to be connected, so that the mounting bracket 2 is sealed to the fuel tank 5. Of course, it is also possible to fit one side of the mounting bracket 2 with the outer side of the fuel tank 5 and then use sealant to seal the mounting bracket 2 to the fuel tank 5.

[0041] The extension direction of the above-mentioned mounting channel can be selected to be consistent with the length direction of the mounting bracket 2. A groove is formed on the inner wall of the mounting channel as a sliding groove 24. The sliding groove 24 extends along the circumference of the mounting channel. The sliding groove 24 can be selected to extend to both ends to be connected to each other, so that the sliding groove 24 is an annular groove. Of course, the two ends of the sliding groove 24 can also be selected to be spaced circumferentially in the mounting channel.

[0042] The above-mentioned sliding groove 24 is recessed along the radial direction of the mounting channel and formed on the inner wall of the mounting channel, so that the notch of the sliding groove 24 faces the inside of the mounting channel. The sliding groove 24 can be optionally set in the middle position of the mounting channel, so that the sliding groove 24 has two side walls opposite to each other along the extension direction of the mounting channel, and an inlet and outlet groove 25 extending along the extension direction of the mounting channel is set on the inner wall of the mounting channel. The inlet and outlet groove 25 is set on the side of the sliding groove 24 facing away from the oil tank 5, and one end of the inlet and outlet groove 25 is connected to the sliding groove 24, and the other end extends to the end of the mounting channel away from the inside of the oil tank 5; the diameter of the mounting channel can be selected to be equal to the diameter of the mounting column 1, so that after the mounting column 1 is inserted into the mounting channel, the inner wall of the mounting channel fits with the outer side surface of the mounting column 1, so that the inner wall of the mounting channel is sealed with the mounting column 1, and the clamping block 11 can enter and leave the sliding groove 24 through the inlet and outlet groove 25.

[0043] Of course, the sliding groove 24 can also be located at the end of the mounting channel away from the oil tank 5, and the sliding groove 24 forms an annular opening on one of the two side walls of the mounting channel in the extending direction, away from the oil tank 5, so that the inner wall of the sliding groove 24 is exposed to the outside of the mounting post 1 through the annular opening in the extending direction of the mounting channel, so that the mounting post 1 can be inserted into the mounting channel, and the clamping block 11 protruding from the outside of the mounting post 1 can enter the sliding groove 24 through the annular opening. It is also possible to select that during the process of inserting the mounting post 1 into the mounting channel, the clamping block 11 is arranged opposite to the positioning portion 3 in the sliding groove 24 in the axial direction of the mounting channel, so that when the clamping block 11 moves with the mounting post 1 and enters the sliding groove 24, it contacts the positioning portion 3 and is clamped and connected.

[0044] Of course, you can also choose to have the mounting post 1 inserted into the mounting channel, with the clamping block 11 and the positioning portion 3 spaced circumferentially along the mounting channel, so that after the mounting post 1 is inserted into the mounting channel, the clamping block 11 and the positioning portion 3 are spaced circumferentially along the mounting channel in the sliding groove 24, and the mounting post 1 rotates around the axis of the mounting channel, so that the mounting post 1 rotates relative to the mounting bracket 2, and the mounting post 1 rotates to cause the clamping block 11 to slide along the sliding groove 24, so that the clamping block 11 can rotate in the direction close to the positioning portion 3, so that the clamping block 11 and the positioning portion 3 contact and connect with each other, and the clamping block 11 can rotate in the direction away from the positioning portion 3, so that the clamping block 11 is separated from the positioning portion 3; the clamping block 11 is a block structure formed by a protrusion of a partial area on the outer side of the mounting post 1, and the size of the clamping block 11 in the extension direction of the mounting channel is smaller than the size of the sliding groove 24 in the extension direction of the mounting channel, so that the clamping block 11 can move along the sliding groove 24 in the sliding groove 24.

[0045] The above-mentioned positioning portion 3 can be selected to be located entirely in the sliding groove 24. Of course, a through hole can also be selected to be provided on the mounting bracket 2, the through hole being connected to the sliding groove 24, and the positioning portion 3 being passed through the through hole, so that a part of the positioning portion 3 is located in the sliding groove 24, and the other part of the positioning portion 3 is located on the outside of the mounting bracket 2, so that the user can control the connection and separation operations of the positioning portion 3 and the clamping block 11 through the positioning portion 3 located on the outside of the mounting bracket 2.

[0046] The above-mentioned positioning part 3 can be selected as an elastic snap-in clamping block 11. After contacting the positioning part 3, it moves toward the positioning part 3, and the elastic snap-in elastically deforms and is clamped and connected with the clamping block 11. The positioning part 3 can also be selected as a slot, and the clamping block 11 moves toward the positioning part 3 and is inserted into the slot, so that the clamping block 11 is clamped and connected with the slot; the clamping block 11 is clamped and connected with the elastic snap-in or the slot, so that the clamping block 11 and the positioning part 3 remain in a connected state, so that the mounting post 1 is stably mounted on the mounting bracket 2, at this time the mounting post 1 cannot be pulled out of the mounting channel; the mounting post 1 rotates to cause the clamping block 11 to rotate along the circumference of the mounting channel and rotate in the direction away from the positioning part 3, so that the clamping block 11 disengages from the elastic snap-in or the slot, so that the clamping block 11 disengages from the elastic snap-in or the slot, so that the mounting post 1 can be pulled out of the mounting channel.

[0047] When the fuel system leakage detection device provided by the embodiment of the present disclosure is used, the mounting bracket 2 is first sealed and connected to the outside of the fuel tank 5, so that the mounting channel is connected to the inside of the fuel tank 5, and the end of the mounting column 1 provided with the detector 13 is inserted into the mounting channel, and the mounting column 1 moves toward the inside of the fuel tank 5 so that the mounting column 1 is inserted into the mounting channel, and the clamping block 11 is inserted into the sliding groove 24. The user rotates the mounting column 1 to move the clamping block 11 of the mounting column 1 along the sliding groove 24, so that the clamping block 11 and the positioning portion 3 contact and connect with each other, and the mounting column 1 is limited in the mounting channel. The mounting column 1 cannot move relative to the mounting bracket 2, and the mounting column 1 completes the installation operation with the mounting bracket 2; at this time, the inner wall of the mounting channel is sealed and connected to the outer side surface of the mounting column 1, so that the oil in the fuel tank will not leak through the mounting channel.

[0048] When the detector 13 needs to be replaced or repaired, the user rotates the mounting column 1 to move the clamping block 11 along the sliding groove 24 in a direction away from the positioning portion 3, and the clamping block 11 is disconnected from the positioning portion 3. At this time, the mounting column 1 can move freely along the extension direction of the mounting channel. The mounting column 1 is pulled out of the mounting channel. After replacing or repairing the detector 13, the above-mentioned installation operation of the mounting column 1 and the mounting bracket 2 is repeated. The detector 13 can then be installed in the fuel tank 5 to detect whether the fuel tank 5 is leaking oil.

[0049] The fuel system leakage detection device provided by the embodiment of the present disclosure includes a mounting column 1, a mounting bracket 2 and a positioning portion 3; a mounting channel is provided in the mounting bracket 2, and the mounting bracket 2 is used to be sealed and connected to the outer side of the fuel tank 5, and the mounting channel is connected to the interior of the fuel tank 5; a sliding groove 24 is formed in a depression on the inner wall of the mounting channel, and the sliding groove 24 extends along the circumference of the mounting channel, and at least part of the positioning portion 3 is arranged in the sliding groove 24; a clamping block 11 is convexly provided on the outer side of the mounting column 1, and the mounting column 1 is inserted into and out of the mounting channel to drive the clamping block 11 to enter and leave the sliding groove 24, and the clamping block 11 can be clamped and separated from the positioning portion 3 in the sliding groove 24; the outer side of the mounting column 1 is sealed and connected to the inner wall of the mounting channel, ensuring the sealing of the fuel system leakage detection device when it is installed on the fuel tank 5, and preventing the liquid in the fuel tank 5 from leaking through the mounting channel; a detector 13 is provided at one end of the mounting column 1 close to the interior of the fuel tank 5, and the detector 13 is used to detect whether there is a leakage problem in the fuel tank 5. When the mounting post 1 is inserted into the mounting channel so that the clamping block 11 enters the sliding groove 24 and is connected to the positioning portion 3, the mounting post 1 is restricted in the mounting channel and cannot move relative to the mounting bracket 2, so that the mounting post 1 is installed on the mounting bracket 2, and the detector 13 can be stably positioned in the fuel tank 5 to detect leakage problems; the clamping block 11 is separated from the positioning portion 3 to enable the mounting post 1 to move relative to the mounting bracket 2, so that the mounting post 1 can be pulled out of the mounting channel to replace and repair the detector 13, thereby improving the operational convenience of installing and disassembling the fuel system leakage detection device, thereby improving the operational efficiency of installing and disassembling the fuel system leakage detection device.

[0050] Reference Figure 2 and Figure 3 As shown, in some embodiments, the sliding groove 24 includes two side walls opposite to each other along the extension direction of the mounting channel; the inner wall of the mounting channel located on the side of the sliding groove 24 facing away from the oil tank 5 is recessed to form an entry and exit groove 25, one end of the entry and exit groove 25 is connected to the sliding groove 24, and the other end extends in the direction away from the sliding groove 24 to the end of the mounting channel away from the oil tank 5, so that the clamping block 11 enters and leaves the sliding groove 24 through the entry and exit groove 25; along the circumference of the mounting column 1, the entry and exit groove 25 and the positioning portion 3 are spaced apart, and the mounting column 1 rotates relative to the mounting channel to drive the clamping block 11 to slide along the sliding groove 24, so that the clamping block 11 and the positioning portion 3 are clamped and connected or separated from each other. With such a configuration, when the mounting column 1 is inserted into the mounting channel, the clamping block 11 can enter the sliding groove 24 through the entry and exit groove 25, and the two side walls of the sliding groove 24 can form a limit for the clamping block 11 in the extension direction of the mounting channel, making it convenient for the clamping block 11 to slide along the extension direction of the sliding groove 24; and when the clamping block 11 is in the sliding groove 24, the mounting bracket 2 can shield the clamping block 11 to prevent the clamping block 11 and the positioning portion 3 from colliding with foreign objects from the outside.

[0051] Specifically, the sliding groove 24 can be selected to be set in the middle of the installation channel, so that the sliding groove 24 has two side walls opposite to each other along the extension direction of the installation channel, that is, the sliding groove 24 is completely located inside the installation channel, and the distance between the two side walls can be selected to be greater than the size of the clamping block 11 along the extension direction of the installation channel, so that the clamping block 11 can move along the extension direction of the sliding groove 24, and at the same time, the clamping block 11 can move in the sliding groove 24 along the extension direction of the installation channel, so that when the positioning part 3 is a clamping block that can move along the extension direction of the installation channel, the clamping block 11 can cooperate with the clamping block 11 in the sliding groove 24 to realize the clamping operation of the clamping block 11 and the sliding groove 24, as long as the clamping block 11 can be inserted into the sliding groove 24 and the clamping block 11 can move along the sliding groove 24.

[0052] The above-mentioned inlet and outlet grooves 25 are recessed radially along the mounting channel and formed on the inner wall of the mounting channel, that is, the notch of the inlet and outlet grooves 25 faces the inside of the mounting channel, and one end of the inlet and outlet grooves 25 extends to the side wall of the sliding groove 24 away from the oil tank 5, so that the inlet and outlet grooves 25 are connected with the sliding groove 24, and the other end of the inlet and outlet grooves 25 extends to the side of the mounting bracket 2 away from the oil tank 5, so that the inlet and outlet grooves 25 form a through opening on the side of the mounting bracket 2 away from the oil tank 5. During the process of inserting the mounting post 1 into the mounting channel, the clamping block 11 passes through the through opening and enters the inlet and outlet grooves 25, and the mounting post 1 moves toward the oil tank 5, so that the clamping block 11 passes through the inlet and outlet grooves 25 and enters the sliding groove 24. When the clamping block 11 is in the sliding groove 24, it can prevent the mounting post 1 from moving toward the oil tank 5. The mounting post 1 rotates, so that the clamping block 11 rotates along the sliding groove 24 and is connected with the positioning portion 3.

[0053] The above-mentioned entry and exit slots 25 can be optionally set at a position with an angle of ninety degrees to the positioning portion 3, so that the mounting post 1 is inserted into the mounting channel. After the clamping block 11 passes through the entry and exit slots 25 and enters the sliding slot 24, the mounting post 1 can be rotated ninety degrees to rotate the clamping block 11 to a position connected to the positioning portion 3; the rotation distance of the ninety-degree angle between the entry and exit slots 25 and the positioning portion 3 is small, and the user can easily drive the mounting post 1 to rotate ninety degrees at one time with his fingers, avoiding excessive rotation and the need to rotate the mounting post 1 multiple times.

[0054] The above-mentioned mounting hole can be selected as a through hole set on the mounting bracket 2, and the positioning part 3 is passed through the mounting hole so that part of the positioning part 3 is located in the sliding groove 24, and part of the positioning part 3 is exposed on the outside of the mounting bracket 2, so that the positioning part 3 can be conveniently installed on the mounting bracket 2, and part of the positioning part 3 can be located in the sliding groove 24; when the clamping block 11 moves to a position opposite to the mounting hole in the extension direction of the mounting channel, it can contact the positioning part 3, thereby connecting the clamping block 11 to the positioning part 3, and the clamping block 11 moves along the sliding groove 24 in the direction away from the mounting hole, so that the clamping block 11 can be disengaged from the positioning part 3.

[0055] Reference Figure 2 and Figure 3 As shown, in some embodiments, a mounting hole communicating with the sliding groove 24 is provided on a side of the mounting bracket 2 facing away from the fuel tank 5; the positioning portion 3 includes a clamping member 32 and a driving member 31. The clamping member 32 is slidably disposed in the sliding groove 24 along the extension direction of the mounting channel, and the driving member 31 is disposed in the mounting hole and connected to the clamping member 32.

[0056] The clamping block 11 is located in the sliding groove 24 on the side of the clamping member 32 facing the oil tank 5. When the clamping block 11 slides along the sliding groove 24 to a position opposite to the clamping member 32 along the extension direction of the installation channel, the driving member 31 drives the clamping member 32 to slide relative to the sliding groove 24 to be clamped and connected with the clamping block 11 and separated from each other.

[0057] The arrangement is such that the clamping block 11 is located on the side of the clamping part 32 facing the oil tank 5, so that the clamping block 11 can slide freely along the sliding groove 24, which is convenient for adjusting the position of the clamping block 11 in the sliding groove 24. The driving member 31 can control the clamping and disengagement of the clamping part 32 and the clamping block 11 by driving the movement of the clamping part 32, which is convenient for the clamping and disengagement operation of the clamping part 32 and the clamping block 11, thereby improving the user's convenience in stably installing the mounting column 1 on the mounting bracket 2; and the user can grab the part of the positioning portion 3 exposed on the outside of the mounting bracket 2 to drive the positioning portion 3 to move along the mounting hole, which is convenient for the user to control the connection and separation of the positioning portion 3 and the clamping block 11 by driving the positioning portion 3 to move, thereby facilitating the installation of the mounting column 1 on the mounting bracket 2 and the operation of withdrawing it from the mounting bracket 2.

[0058] Specifically, the mounting hole and the sliding groove 24 can be arranged opposite to each other along the extension direction of the installation channel, and the mounting hole extends toward the sliding groove 24 to communicate with the sliding groove 24; the mounting hole can be selected as a screw hole, and the driving member 31 can be selected as a screw rod. The clamping member 32 is provided with a screw hole, and the bottom of the sliding groove 24 is recessed to form a movable groove 26. The movable groove 26 extends along the extension direction of the installation channel, and the clamping member 32 is slidably connected to the movable groove 26. The screw rod is threadedly connected to the screw hole on the clamping member 32. By rotating the screw, the clamping member 32 can be driven to move along the extension direction of the installation channel.

[0059] Of course, the mounting hole can also be selected as a through hole, the driving member 31 is a motor with a telescopic end, the motor is arranged on the side of the mounting bracket 2 away from the oil tank 5, the telescopic end is passed through the mounting hole and is fixedly connected to the clamping member 32, the motor drives the telescopic end to move along the extension direction of the mounting channel to drive the clamping member 32 to move along the extension direction of the mounting channel, or it is not limited to the driving member 31 being a cylinder with a telescopic end, the cylinder is arranged on the side of the mounting bracket 2 away from the oil tank 5, the telescopic end is passed through the mounting hole and is fixedly connected to the clamping member 32; or the driving member 31 can also be selected as a straight rod, the straight rod is passed through the mounting hole, the user grabs the end of the straight rod exposed on the outside of the mounting bracket 2, so that the user applies a force on the straight rod along the extension direction of the mounting channel to drive the clamping member 32 to slide along the extension direction of the mounting channel through the driving member 31.

[0060] The above-mentioned clamping member 32 is a block structure, and a clamping groove or clamping buckle is provided on the block structure. The clamping groove or clamping buckle is arranged on the clamping member 32 along the extension direction of the installation channel toward the side of the oil tank 5. The driving member 31 drives the clamping member 32 to move in the direction away from the oil tank 5, so that a gap is formed between the clamping member 32 and the side wall of the sliding groove 24 on the side close to the oil tank 5. The clamping block 11 rotates along the sliding groove 24 to the gap between the clamping member 32 and the side wall of the sliding groove 24 on the side close to the oil tank 5. The driving member 31 drives the clamping member 32 to move in the direction close to the oil tank 5, so that the clamping groove or clamping buckle on the clamping member 32 is clamped and connected with the clamping block 11, thereby completing the clamping connection between the clamping block 11 and the clamping member 32; the driving member 31 drives the clamping member 32 to move in the direction away from the oil tank 5, and the clamping member 32 can be disconnected from the clamping block 11.

[0061] The above-mentioned driving member 31 can be selected as a screw, and the clamping member 32 is provided with a screw hole. The bottom of the sliding groove 24 is recessed to form a movable groove 26. The movable groove 26 extends along the extension direction of the installation channel, and the clamping member 32 is slidably connected with the movable groove 26, and the screw is threadedly connected with the screw hole on the clamping member 32. Rotating the screw can drive the clamping member 32 to move along the extension direction of the installation channel; of course, the driving member 31 can also be selected to be a motor with a telescopic end, the motor is arranged on the side of the mounting bracket 2 away from the oil tank 5, the telescopic end is passed through the mounting hole and is fixedly connected to the clamping member 32, and the motor drives the telescopic end to move along the extension direction of the installation channel to drive the clamping member 32 to move along the extension direction of the installation channel, or the driving member 31 is not limited to being a cylinder with a telescopic end, the cylinder is arranged on the side of the mounting bracket 2 away from the oil tank 5, the telescopic end is passed through the mounting hole and is fixedly connected to the clamping member 32.

[0062] Reference Figure 2 、 Figure 3 and Figure 4As shown, in some embodiments, the driving member 31 includes a screw, and the clamping member 32 includes a limit block; the bottom of the sliding groove 24 is recessed to form a movable groove 26, and the movable groove 26 extends along the extension direction of the mounting channel. One end of the limit block is slidably connected to the movable groove 26 along the extension direction of the mounting channel, and the other end is located in the sliding groove 24. The part of the limit block located in the movable groove 26 is provided with a screw hole, and the mounting hole and the screw hole are coaxially arranged. One end of the screw is threadedly connected to the screw hole, and the other end passes through the mounting hole and is exposed on the outside of the mounting bracket 2, and the screw is rotatably connected to the mounting hole; a limit groove 321 is provided on the side of the limit block facing the oil tank 5, and the clamping block 11 can be inserted into the limit groove 321, so that the limit groove 321 limits the movement of the clamping block 11 relative to the mounting bracket 2. With this arrangement, the user can rotate the screw exposed on the outside of the mounting bracket 2, and the limit block can be moved along the extension direction of the mounting channel under the action of the thread, thereby controlling the engagement and disengagement of the clamping member 32 with the clamping block 11. The screw is exposed on the outside of the mounting bracket 2, which makes it convenient for the user to rotate the screw, thereby improving the user's convenience in controlling the engagement and disengagement of the clamping member 32 with the clamping block 11.

[0063] Specifically, the screw rod is a straight rod structure with a thread on the outside of the straight rod. The limit block can be selected as a rectangular block. The size of the movable groove 26 matches the limit block. The limit block extends radially along the installation channel, so that one end of the limit block is slidably connected to the movable groove 26, and the other end can be located in the sliding groove 24.

[0064] Since the clamping block 11 is located in the sliding groove 24 on the side of the clamping member 32 facing the fuel tank 5, a limiting groove 321 is provided on the side of the limiting block facing the fuel tank 5. After the clamping block 11 and the limiting block are arranged relative to each other, the limiting block can be moved toward the fuel tank 5 to allow the clamping block 11 to be inserted into the limiting groove, so that the limiting block can limit the movement of the clamping block 11 relative to the mounting bracket 2.

[0065] Two parallel plates can be optionally set on the side of the above-mentioned limit block facing the oil tank 5, and the plates move radially along the installation channel. The two plates and the limit block together form a limit groove 321, and the notch of the limit groove 321 faces the oil tank 5, so that when the limit block moves toward the oil tank 5 along the extension direction of the installation channel, the clamping block 11 can enter the limit groove 321 through the notch of the limit groove 321, so that the clamping block 11 cannot move along the sliding groove 24, and the clamping block 11 cannot move along the extension direction of the installation channel, and the limit groove 321 limits the movement of the clamping block 11 relative to the installation bracket 2.

[0066] Of course, you can also choose to have the side of the limit block facing the oil tank 5 recessed to form a limit groove 321, and the limit groove 321 extends radially along the mounting channel to form an opening at the end of the limit block away from the movable groove 26. When the limit block moves toward the oil tank 5 along the extension direction of the mounting channel, the clamping block 11 can enter the limit groove 321 through the notch and opening of the limit groove 321, and after the clamping block 11 is located in the limit groove 321, the clamping block 11 cannot move along the sliding groove 24, and the clamping block 11 cannot move along the extension direction of the mounting channel, so that the limit groove 321 limits the movement of the clamping block 11 relative to the mounting bracket 2.

[0067] A bearing can be optionally set in the above-mentioned mounting hole, the outer ring of the bearing is connected to the inner wall of the mounting hole, and the screw is passed through the inner ring of the bearing and connected to the inner ring of the bearing, so that the screw can rotate in the mounting hole. Of course, it is also possible to set a thread on the inner wall of the mounting hole, and the screw is threadedly connected to the mounting hole, so that the screw can rotate relative to the mounting hole through the thread.

[0068] Reference Figure 2 and Figure 3 As shown, in some embodiments, the mounting bracket 2 includes a side plate 23, a first mounting plate 21, and a second mounting plate 22; the first mounting plate 21 and the second mounting plate 22 are arranged opposite to each other, and a first through-hole 211 is provided on the first mounting plate 21, and a second through-hole 221 is provided on the second mounting plate 22. The first through-hole 211 and the second through-hole 221 are coaxial, so that the mounting column 1 is passed through the first through-hole 211 and the second through-hole 221; the side plate 23 is connected between the first mounting plate 21 and the second mounting plate 22 around the axis of the first through-hole 211 and the second through-hole 221, and the side plate 23, the first mounting plate 21 and the second mounting plate 22 form a sliding groove 24; the entry and exit groove 25 is provided on the first through-hole 211, and the side of the second mounting plate 22 facing away from the first mounting plate 21 is sealed with the outer side of the fuel tank 5, the mounting hole is provided on the first mounting plate 21, and the movable groove 26 is formed on the side plate 23; the inner wall of the second through-hole 221 is sealed with the outer side of the mounting column 1. In this arrangement, the first mounting plate 21, the second mounting plate 22 and the side plate 23 form an internal hollow structure. After the mounting column 1 is passed through the first through hole 211 and the second through hole 221, the mounting column 1 can be protected by the first mounting plate 21 and the second mounting plate 22 to prevent foreign objects from colliding with the clamping block 11 and damaging the clamping block 11, thereby affecting the stability of the mounting column 1 on the mounting bracket 2.

[0069] Specifically, the side plate 23 can be selected as an annular plate body, the first mounting plate 21 and the second mounting plate 22 are both disc-shaped plates, the diameters of the first mounting plate 21 and the second mounting plate 22 are equal, a first through-hole 211 is set at the center of the first mounting plate 21, and a second through-hole 221 is set at the center of the second mounting plate 22, so that the first through-hole 211 and the second through-hole 221 are coaxially arranged, and the side plate 23 is arranged around the axis of the first through-hole 211 and the second through-hole 221, so that the axis of the annular side plate 23 is coaxial with the axis of the first through-hole 211 and the second through-hole 221, and the side plate 23 is connected to the edge of the first mounting plate 21 and the edge of the second mounting plate 22 on both sides along the axis direction of the first through-hole 211 and the second through-hole 221, respectively, thereby forming the structure of the mounting bracket 2.

[0070] The first and second mounting plates 21, 22, and side plates 23 collectively form a sliding groove 24. The first and second mounting plates 21, 22 serve as the two side walls of the sliding groove 24 along the direction in which the mounting channel extends. The side plates 23 form the bottom of the sliding groove 24. The space between the first through-hole 211 and the second through-hole 221 constitutes the mounting channel. The diameter of the second through-hole 221 is equal to the diameter of the mounting post 1, so that the outer side of the mounting post 1 abuts the inner wall of the second through-hole 221, thereby achieving a sealed connection between the inner wall of the second through-hole 221 and the outer side of the mounting post 1. Alternatively, a sealing ring may be provided on the inner wall of the second through-hole 221, with the mounting post 1 passing through the second through-hole 221, and the outer side of the mounting post 1 abutting the sealing ring.

[0071] The diameter of the first through-hole 211 can be selected to be equal to the diameter of the mounting post 1, so that the portion of the first through-hole 211 within the access slot 25 abuts the mounting post 1. Alternatively, the diameter of the first through-hole 211 can be larger than the diameter of the mounting post 1. The side of the second mounting plate 22 facing away from the first mounting plate 21 is sealed to the outside of the fuel tank 5. The edge of the second mounting plate 22 can be welded to the fuel tank 5. Alternatively, a sealant can be applied to the side of the second mounting plate 22 facing away from the first mounting plate 21, so that the second mounting plate 22 is sealed and bonded to the fuel tank 5 via the sealant.

[0072] When the above-mentioned movable groove 26 is formed on the side plate 23, the side plate 23 can be selected to protrude in the radial direction of the installation channel toward the direction away from the axis of the installation channel, and the movable groove 26 is formed inside the protrusion, so that the movable groove 26 has a larger space to accommodate the clip 32, thereby improving the stability of the clip 32 moving along the movable groove 26.

[0073] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, in some embodiments, there are two positioning portions 3, two clamping blocks 11, and the sliding groove 24 is an annular groove surrounding the axis of the mounting channel. The two positioning portions 3 are arranged opposite each other along the radial direction of the mounting channel, and the two clamping blocks 11 are arranged opposite each other on the outside of the mounting column 1 along the radial direction of the mounting column 1. The two clamping blocks 11 can be connected to the two positioning portions 3 in a one-to-one correspondence. This arrangement allows the two clamping blocks 11 to rotate synchronously in the annular sliding groove 24 when the mounting column 1 rotates, thereby allowing the two clamping blocks 11 to be synchronously connected and separated from the two positioning portions 3. This provides two connection points between the mounting column 1 and the mounting bracket 2, thereby improving the stability of the mounting column 1 when it is installed on the mounting bracket 2.

[0074] Specifically, the sliding groove 24 is an annular groove arranged around the axis of the mounting channel, the number of positioning parts 3 is two, the number of clamping blocks 11 is two, the two clamping blocks 11 are arranged opposite to each other along the radial direction of the mounting column 1, and the two clamping blocks 11 are in the same plane in the extension direction of the mounting column 1. When the sliding groove 24 has two opposite side walls, two entry and exit grooves 25 are provided on the mounting channel, and the two entry and exit grooves 25 are arranged opposite to each other in the radial direction of the mounting channel, so that when the mounting column 1 is inserted into the mounting channel, the two clamping blocks 11 can enter the annular sliding groove 24 through the two entry and exit grooves 25.

[0075] When the above-mentioned mounting column 1 rotates along the circumferential direction of the mounting channel in the mounting channel, the two clamping blocks 11 rotate along the annular sliding groove 24 at the same time. Since the two positioning parts 3 are arranged opposite to each other on the sliding groove 24 along the radial direction of the mounting channel, when one clamping block 11 rotates to one positioning part 3, the other clamping block 11 rotates synchronously to the other positioning part 3, so that the two clamping blocks 11 can be connected to the two positioning parts 3 one by one, and when the mounting column 1 rotates to separate one clamping block 11 from one positioning part 3, the other clamping block 11 will be separated from the other positioning part 3.

[0076] Reference Figure 4 As shown, in some embodiments, the interior of the mounting post 1 has a receiving cavity 12, which is provided with a power supply 14. A detector 13 is electrically connected to the power supply 14 and disposed within the receiving cavity 12. A detection hole is provided at the end of the mounting post 1 near the fuel tank 5, through which a portion of the detector 13 extends out of the receiving cavity 12. This arrangement protects the detector 13 within the receiving cavity 12, preventing the detector 13 from being completely exposed to the outside world and easily damaged. The detection hole provided at the end of the mounting post 1 near the fuel tank 5 prevents the mounting post 1 from colliding with the detector 13 during insertion into the installation channel, thereby improving the safety and stability of the detector 13 during use.

[0077] Specifically, the interior of the mounting column 1 can be selected to be a hollow structure, the detection hole can be selected to be set at the midpoint of one end of the mounting column 1 facing the fuel tank 5, the detector 13 can be selected to be a pressure detector, the detector 13 has a detection end for detecting pressure, the detection end extends out of the accommodating cavity 12 through the detection hole, so that the detection end can detect the pressure inside the fuel tank 5 to confirm whether the fuel tank 5 is leaking.

[0078] The above-mentioned detector 13 can be connected to the inner wall of the accommodating cavity by bonding. Of course, a snap can also be provided in the accommodating cavity 12, and the detector 13 is snap-connected to the snap; the power supply 14 can be a battery or a dry cell, and the power supply 14 can be set on the inner wall of the accommodating cavity 12 opposite to the detection hole; the power supply is electrically connected to the detector 13, so that the power supply can power the detector 13, so that the detector 13 can continue to work.

[0079] A process hole can be optionally provided at the end of the above-mentioned mounting column 1 facing away from the oil tank 5, and the process hole is communicated with the accommodating chamber 12. A movable plug is provided in the process hole, and the movable plug is detachably connected to the process hole. A thread can be optionally provided in the process hole, and a thread can be provided on the outside of the movable plug so that the movable plug is threadedly connected to the process hole. Of course, the movable plug can be elastic, and the diameter of the movable plug can be larger than the process hole. The movable plug is inserted into the process hole through elastic deformation, so that the movable plug abuts against the inner wall of the process hole. The movable plug can also be pulled out of the process hole through elastic deformation.

[0080] Reference Figure 2 and Figure 4 As shown, in some embodiments, a heating device 4 is provided on the side of the mounting post 1 facing the fuel tank 5 for exchanging heat with the interior of the fuel tank 5. This arrangement enables the heating device 4 to increase the temperature inside the fuel tank 5, maintaining good fluidity of the fuel in the fuel tank 5 in cold weather, and ensuring that the vehicle can start normally.

[0081] Specifically, the heating device 4 can be selected to extend in a direction away from the mounting column 1 so that the heating device 4 can extend into the fuel tank 5. After the heating device 4 is started, it can heat up and increase the temperature in the fuel tank 5 by heat exchange. When the weather is cold, the fluidity of the fuel in the fuel tank 5 decreases due to the low temperature, which affects the normal supply of fuel to the engine and easily causes difficulty in starting the vehicle or even failure to start. The heating device 4 can increase the fuel in the fuel tank 5, thereby improving the fluidity of the fuel in the fuel tank 5 and allowing the fuel to be supplied to the engine normally.

[0082] Reference Figure 2 and Figure 4As shown, in some embodiments, the heating device 4 includes a protective tube 41, a heating element 42, and a temperature measuring assembly 43. The protective tube 41 is connected to the mounting post 1 and is provided with a communication hole 411. The heating element 42 and the temperature measuring assembly 43 are disposed within the protective tube 41. This configuration protects the heating element 42 and the temperature measuring assembly 43, preventing them from colliding with the inner wall of the mounting passage and being damaged when the mounting post 1 is withdrawn from the mounting passage. The heating element 42 heats the fuel in the fuel tank 5, and the temperature measuring assembly 43 detects the temperature of the fuel in the fuel tank 5, preventing the heating element 42 from overheating the fuel in the fuel tank 5 and causing combustion.

[0083] Specifically, the protective tube 41 can be hollow, the heating element 42 can be an electric resistance wire or an electric heating rod, the temperature measuring assembly 43 and the heating element 42 can be disposed within the protective tube 41, and the communication hole 411 can be a through-hole formed in the side wall of the protective tube 41, so that the liquid in the fuel tank 5 can enter and exit the interior space of the protective tube 41 through the communication hole 411. The heating element 42 heats the fuel in the fuel tank 5, and the temperature measuring assembly 43 can detect the temperature of the fuel in the fuel tank 5 to prevent the heating element 42 from overheating the fuel and causing combustion.

[0084] In some embodiments, a controller 15 is provided on the mounting column 1, and the controller 15 is electrically connected to the heating device 4. This configuration enables the controller 15 to control the heating operation of the heating device 4 on the fuel tank 5, thereby improving the automation level of the fuel system leak detection device.

[0085] Specifically, the controller 15 can be selected as a chip or a circuit board. The controller 15 is electrically connected to the heating element 42 and the temperature measuring component 43 in the heating device 4. The controller 15 can be selected to be wirelessly connected to the temperature measuring component 43 so that the detection structure of the temperature measuring component 43 is sent to the controller 15, so that the controller 15 can control the start and stop of the heating element 42 according to the temperature of the fuel in the fuel tank 5 detected by the temperature measuring component 43.

[0086] When a accommodating cavity 12 is provided in the mounting column 1, the controller 15 can be optionally set in the accommodating cavity 12, and when the power supply 14 is set in the accommodating cavity 12, the power supply 14 can also be selected to be electrically connected to the controller 15, so that the controller 15 controls whether the power supply 14 supplies power to the heating device 4, that is, the power supply 14 can be selected to be electrically connected to the controller 15, the detector 13, the heating element 42 and the temperature measuring component 43.

[0087] An embodiment of the present disclosure also provides a vehicle, including a fuel tank 5 and a fuel system leakage detection device as described in any one of the above items; a detection hole is provided on the fuel tank 5, the mounting bracket 2 is sealedly connected to the side of the fuel tank 5 where the detection hole is provided, the mounting channel is connected to the detection hole, and the end of the mounting column 1 where the detector 13 is provided enters the interior of the fuel tank 5 through the detection hole.

[0088] Specifically, a detection hole is provided on one side surface of the fuel tank 5, and the mounting bracket 2 is connected to the detection hole of the fuel tank 5 so that the mounting channel is connected to the detection hole. The mounting column 1 is passed through the mounting channel, and the clamping block 11 is connected to the positioning portion 3 so that the mounting column 1 is installed on the mounting bracket 2. The detector 13 is located inside the fuel tank 5 to detect the pressure deformation inside the fuel tank 5, so that the detector 13 can detect whether the fuel tank 5 is leaking.

[0089] By installing the fuel system leak detection device as described above in the vehicle, the user can engage and disengage the engaging block 11 with the positioning portion 3 by rotating the mounting column 1, thereby facilitating the user's installation and removal of the mounting column 1 on the mounting bracket 2, thereby facilitating the user's maintenance and replacement of the detector 13 on the mounting column 1.

[0090] When the fuel system leakage detection device and vehicle provided by the embodiment of the present disclosure are used, the second mounting plate 22 of the mounting bracket 2 is sealed and connected to the fuel tank 5, the second through hole 221 is coaxially arranged with the detection hole, and the screw of the driving member 31 is rotated to move the limit block of the clamping member 32 in a direction away from the second mounting plate 22, so that a gap is formed between the limit block and the second mounting plate 22.

[0091] The end of the mounting column 1 provided with the detector 13 and the heating device 4 is inserted into the first through-hole 211, and the mounting column 1 moves toward the direction of the oil tank 5, so that the mounting column 1 passes through the first through-hole 211 and the second through-hole 221; during the movement of the mounting column 1, the clamping block 11 moves with the mounting column 1 and enters the sliding groove 24 through the inlet and outlet groove 25, and the clamping block 11 is affixed to the second mounting plate 22 in the sliding groove 24, and the mounting column 1 rotates to make the clamping block 11 slide along the sliding groove 24. When the clamping block 11 slides to a position opposite to the limit block in the extension direction of the mounting channel, the screw is rotated to push the limit block to move along the movable groove 26 toward the second mounting plate 22, so that the clamping block 11 enters the limit groove 321. At this time, the clamping block 11 is limited by the limit groove 321, and the mounting column 1 cannot move relative to the mounting bracket 2. The mounting column 1 abuts against the inner wall of the second through-hole 221 to be sealed, thereby completing the operation of installing the mounting column 1 on the mounting bracket 2.

[0092] The detector 13 detects the pressure change in the fuel tank 5 to detect whether the fuel tank 5 is leaking. When the temperature measuring component 43 detects that the fuel temperature in the fuel tank 5 is too low, the controller 15 controls the heating element 42 to heat the fuel in the fuel tank 5 to improve the fluidity of the fuel in the fuel tank 5.

[0093] When the detector 13 needs to be replaced or repaired, the screw is rotated to move the limit block in the direction away from the second mounting plate 22, so that the clamping block 11 disengages from the limit groove 321, and the limit of the limit groove 321 on the clamping block 11 is released. The mounting column 1 is rotated to rotate the clamping block 11 to the entry and exit groove 25, and the mounting column 1 is pulled out from the mounting channel to inspect the detector 13, or the mounting column 1 with the new detector 13 is installed. Repeat the above operation of installing the mounting column 1 on the mounting bracket 2, so that the mounting column 1 with the new detector 13 is installed on the mounting bracket 2 to detect whether the oil tank 5 is leaking.

[0094] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes 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 elements defined by the sentence "comprise a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0095] The foregoing description is intended only to provide specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the embodiments described herein, but rather to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A fuel system leakage detection device, characterized in that: It includes a mounting column, a mounting bracket and a positioning part; A mounting channel is provided in the mounting bracket, the mounting bracket is used to be sealed and connected to the outside of the fuel tank, and the mounting channel is communicated with the interior of the fuel tank; The inner wall of the installation channel is recessed to form a sliding groove, the sliding groove extends along the circumference of the installation channel, and at least part of the positioning portion is disposed in the sliding groove; A snap-fit block is protruded from the outer side of the mounting post, and the mounting post is inserted into and removed from the mounting channel to drive the snap-fit block to enter and leave the sliding groove, and the snap-fit block can be snapped into and separated from the positioning portion in the sliding groove; the outer side of the mounting post is sealed with the inner wall of the mounting channel, and a detector is provided at one end of the mounting post close to the interior of the oil tank.

2. The fuel system leakage detection device according to claim 1, characterized in that: The sliding groove includes two side walls opposite to each other along the extension direction of the installation channel; The inner wall of the mounting channel, located on the side of the sliding groove facing away from the oil tank, is recessed to form an entry and exit groove, one end of the entry and exit groove is connected to the sliding groove, and the other end extends in a direction away from the sliding groove to the end of the mounting channel away from the oil tank, so that the clamping block enters and leaves the sliding groove through the entry and exit groove; Along the circumference of the mounting post, the entry and exit slots are spaced apart from the positioning portion. The mounting post rotates relative to the mounting channel to drive the connecting block to slide along the sliding slot, so that the connecting block and the positioning portion are connected or separated from each other.

3. The fuel system leakage detection device according to claim 2, characterized in that: The mounting bracket is provided with a mounting hole on a side facing away from the oil tank and connected to the sliding groove; the positioning portion includes a clamping member and a driving member, the clamping member being slidably disposed in the sliding groove along an extension direction of the mounting channel, and the driving member being passed through the mounting hole and connected to the clamping member; The clamping block is located in the sliding groove on the side of the clamping member facing the oil tank. When the clamping block slides along the sliding groove to a position opposite to the clamping member along the extension direction of the installation channel, the driving member drives the clamping member to slide relative to the sliding groove to be clamped and connected with the clamping block and separated from each other.

4. The fuel system leakage detection device according to claim 3, characterized in that: The driving member includes a screw, and the clamping member includes a limiting block; The bottom of the sliding groove is recessed to form a movable groove, and the movable groove extends along the extension direction of the mounting channel. One end of the limit block is slidably connected to the movable groove along the extension direction of the mounting channel, and the other end is located in the sliding groove. The part of the limit block located in the movable groove is provided with a screw hole, and the mounting hole and the screw hole are coaxially arranged. One end of the screw is threadedly connected to the screw hole, and the other end passes through the mounting hole and is exposed to the outside of the mounting bracket, and the screw is rotatably connected to the mounting hole; the limit block is provided with a limit groove on the side facing the oil tank, and the clamping block can be inserted into the limit groove so that the limit groove limits the movement of the clamping block relative to the mounting bracket.

5. The fuel system leakage detection device according to claim 4, characterized in that: The mounting bracket includes a side plate, a first mounting plate and a second mounting plate; The first mounting plate and the second mounting plate are arranged opposite to each other, a first through hole is provided on the first mounting plate, and a second through hole is provided on the second mounting plate, and the first through hole and the second through hole are coaxial, so that the mounting post is passed through the first through hole and the second through hole; The side plate surrounds the axis of the first through hole and the second through hole and is connected between the first mounting plate and the second mounting plate, and the side plate, the first mounting plate and the second mounting plate form the sliding groove; The inlet and outlet grooves are arranged on the first through hole, the side of the second mounting plate facing away from the first mounting plate is sealedly connected to the outer side of the oil tank, the mounting hole is arranged on the first mounting plate, and the movable groove is formed on the side plate; the inner wall of the second through hole is sealedly connected to the outer side of the mounting column.

6. The fuel system leakage detection device according to any one of claims 1 to 4, characterized in that: There are two positioning parts, two clamping blocks, the sliding groove is an annular groove surrounding the axis of the mounting channel, the two positioning parts are arranged opposite to each other along the radial direction of the mounting channel, and the two clamping blocks are arranged opposite to each other on the outside of the mounting column along the radial direction of the mounting column. The two clamping blocks can be connected to the two positioning parts in a one-to-one correspondence.

7. The fuel system leakage detection device according to any one of claims 1 to 4, characterized in that: The interior of the mounting column has a accommodating cavity, a power supply is provided in the accommodating cavity, the detector is electrically connected to the power supply, the detector is arranged in the accommodating cavity, and a detection hole is provided at one end of the mounting column close to the oil tank, and part of the detector extends out of the accommodating cavity through the detection hole.

8. The fuel system leakage detection device according to any one of claims 1 to 4, characterized in that: A heating device for performing heat exchange with the interior of the oil tank is provided on a side of the mounting column facing the oil tank.

9. The fuel system leakage detection device according to claim 8, characterized in that: The heating device includes a protective tube, a heating element and a temperature measuring assembly. The protective tube is connected to the mounting column and is provided with a communicating hole. The heating element and the temperature measuring assembly are arranged in the protective tube. And / or, a controller is provided on the mounting column, and the controller is electrically connected to the heating device.

10. A vehicle, characterized in that: The fuel system leakage detection device comprises a fuel tank and a fuel tank according to any one of claims 1 to 9; the fuel tank is provided with a detection hole, the mounting bracket is sealingly connected to the side of the fuel tank provided with the detection hole, the mounting channel is connected to the detection hole, and the end of the mounting column provided with the detector enters the interior of the fuel tank through the detection hole.

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