Fuel tank isolating valve capable of preventing leakage

Abstract

The fuel tank isolating valve capable of preventing leakage comprises an isolating valve shell, a feeding pipe is arranged at the top of one side of the isolating valve shell, a discharging pipe is arranged at the bottom position of the other side of the isolating valve shell, a top mounting shell is connected to the middle of the top end of the isolating valve shell in a clamped mode, and a discharging pipe is arranged at the bottom position of the other side of the isolating valve shell. According to the isolation valve, the telescopic sleeve is rotated to be matched with threads on the outer side of the installation threaded rod to drive the telescopic sleeve to move, so that the telescopic sleeve can move in the axial direction of the outer side of the installation threaded rod in the rotating process; and the telescopic sleeve drives the limiting rubber sheet to be tightly attached to the inner wall of the mounting edge groove in the moving process of the telescopic sleeve, so that the vibration sensor is fixed, vibration generated in the operation process of the isolation valve and external vibration borne by the isolation valve can be detected in real time through the vibration sensor, abnormity of the isolation valve can be found in time, and the safety of the isolation valve is improved. And therefore, the use convenience of the isolating valve is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of isolation valves, in particular to a fuel tank isolation valve capable of preventing leakage. Background Art

[0002] Hybrid power has made new breakthroughs in related technical fields and has achieved good results in the sales market. Hybrid power fuel uses a high-pressure system to meet the needs of sealing and desorption. The fuel tank isolation valve is an important component. When the vehicle is parked for a long time, the built-in mechanical valve is used to realize the opening and closing function.

[0003] However, due to the lack of corresponding auxiliary detection structures, isolation valves are often vibrated and affected by external vibrations during use after installation. When faults occur inside the isolation valve or it is affected by external abnormal vibrations, it cannot be discovered in time, thereby reducing the convenience of using the isolation valve. Utility Model Content

[0004] The utility model provides a fuel tank isolation valve that can prevent leakage, which can effectively solve the problem that the isolation valve proposed in the above background technology lacks a corresponding auxiliary detection structure during use, so that the isolation valve often vibrates and is affected by external vibrations during use after installation. When a fault occurs inside the isolation valve or is affected by external abnormal vibrations, it cannot be discovered in time, thereby reducing the convenience of use of the isolation valve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fuel tank isolation valve capable of preventing leakage, comprising an isolation valve housing, a feed pipe is arranged at the top of one side of the isolation valve housing, a discharge pipe is arranged at the bottom of the other side of the isolation valve housing, and a top mounting shell is clamped at the middle of the top end of the isolation valve housing;

[0006] A side auxiliary detection mechanism is provided on one side of the isolation valve housing;

[0007] The side auxiliary detection mechanism includes an installation side groove, a connecting top pipe, a vibration sensor, a connecting bottom rod, an installation threaded rod, a telescopic sleeve and a limit film;

[0008] A mounting side groove is provided on one side of the isolation valve housing, a connecting top pipe is embedded and installed in the middle of the top inner side of the mounting side groove, a vibration sensor is fixedly connected to the bottom end of the connecting top pipe at a position corresponding to the inner side of the mounting side groove, a connecting bottom rod is fixedly connected to the middle of the bottom surface of the vibration sensor, a mounting threaded rod is fixedly connected to the middle of the bottom surface of the connecting bottom rod, a telescopic sleeve is threadedly connected to the bottom outer side of the mounting threaded rod, and a limiting film is bonded to the middle of the bottom surface of the telescopic sleeve.

[0009] Preferably, the output end of the vibration sensor is connected to the external receiving end, the length of the mounting threaded rod is smaller than the length of the telescopic sleeve, and the bottom surface of the limiting film is tightly fitted with the inner bottom surface of the mounting edge groove.

[0010] Preferably, an auxiliary marking color display mechanism is provided on the top edge of the top mounting shell;

[0011] The auxiliary mark color display mechanism includes an installation arc groove, a limiting rectangular groove, an installation annular sheet and a color display mark card;

[0012] An arc-shaped installation groove is provided on the edge of the top surface of the top installation shell, and limited rectangular grooves are evenly and equidistantly provided on the inner bottom surface of the arc-shaped installation groove along the subcircumferential direction. An installation annular sheet is embedded and installed inside the arc-shaped installation groove, and a color-displaying marking card is bonded to the top surface of the annular sheet along the circumferential direction.

[0013] Preferably, the bottom of the mounting annular sheet is buckled with each other through a rectangular block and a limiting rectangular groove, and the top surface of the mounting annular sheet is higher than the top surface of the top mounting shell.

[0014] Preferably, an internal magnetic telescopic opening and closing mechanism is provided inside the isolation valve housing;

[0015] The internal magnetic telescopic opening and closing mechanism includes a telescopic spring, a lifting sealing sheet, a wiring assembly, an electromagnetic drive assembly, a lifting drive assembly and a sealing disc;

[0016] A telescopic spring is installed at the bottom inner side of the isolation valve housing, a lifting sealing piece is fixedly connected to the top of the telescopic spring at a position corresponding to the bottom inner side of the isolation valve housing, a wiring assembly is fixedly installed on one side of the top of the isolation valve housing, an electromagnetic drive assembly is fixedly connected on one side of the wiring assembly at a position corresponding to the top inner side of the isolation valve housing, a lifting drive assembly is movably installed at the bottom inner side of the electromagnetic drive assembly, and a sealing disc is arranged at the bottom end of the lifting drive assembly.

[0017] Preferably, the wiring assembly is electrically connected to the output end of the external power line, and the lifting sealing sheet and the sealing disc can seal between the feed pipe and the discharge pipe.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a scientific and reasonable structure and is safe and convenient to use:

[0019] 1. A side auxiliary detection mechanism is set up, and an independent installation cavity is set on the outside of the isolation valve shell through the installation side groove, and then the vibration sensor and the components installed thereon are positioned inside the installation side groove by connecting the top pipe, and then the telescopic sleeve is driven to move by rotating the thread on the outside of the installation threaded rod in cooperation with the thread, so that the telescopic sleeve can move along the axial direction of the outside of the installation threaded rod during the rotation process, and the limit film is driven to fit tightly with the inner wall of the installation side groove during the movement of the telescopic sleeve, thereby realizing the fixation of the vibration sensor. The vibration sensor can detect the vibration generated during the operation of the isolation valve and the external vibration in real time, so as to timely discover when the isolation valve is abnormal, thereby effectively improving the convenience of use of the isolation valve.

[0020] 2. An auxiliary marking color display mechanism is set up. An independent mounting structure is set on the top of the top mounting shell by installing an arc groove and a limiting rectangular groove, and the mounting annular piece is clamped to the inside of the mounting arc groove through the limiting rectangular groove. Then, the orientation of each component of the isolation valve is marked by a color display marking card to ensure that the isolation valve is positioned more accurately during the installation process, thereby effectively improving the convenience of isolation valve installation.

[0021] 3. An internal magnetic telescopic opening and closing mechanism is provided, and the lifting and closing sealing piece is continuously pushed upward by the telescopic spring, and the upper and lower cavities of the isolation valve shell are sealed by the lifting and closing sealing piece to prevent the material backflow in the temple of the isolation valve shell, and then the electromagnetic drive component is powered by the wiring assembly, and then the electromagnetic drive component is lifted and lowered along the inside of the isolation valve shell with the lifting and closing drive component and the sealing disc, and the connection of the upper and lower cavities inside the isolation valve shell is controlled by the lifting and lowering of the sealing disc, thereby realizing the smooth operation of the components inside the isolation valve and effectively improving the safety of the isolation valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0023] In the attached picture:

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure inside the housing of the isolation valve of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the side auxiliary detection mechanism of the utility model;

[0027] Figure 4It is a structural schematic diagram of the auxiliary marking color display mechanism of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the internal magnetic telescopic opening and closing mechanism of the utility model;

[0029] Numbers in the figure: 1, isolation valve housing; 2, feed pipe; 3, discharge pipe; 4, top mounting shell;

[0030] 5. Side auxiliary detection mechanism; 501. Install side groove; 502. Connect top pipe; 503. Vibration sensor; 504. Connect bottom rod; 505. Install threaded rod; 506. Telescopic sleeve; 507. Limit film;

[0031] 6. Auxiliary marking color display mechanism; 601. Installing arc groove; 602. Position-limiting rectangular groove; 603. Installing annular sheet; 604. Color display mark card;

[0032] 7. Internal magnetic telescopic opening and closing mechanism; 701. Telescopic spring; 702. Lifting sealing piece; 703. Wiring assembly; 704. Electromagnetic drive assembly; 705. Lifting drive assembly; 706. Sealing disc. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] Example: Figure 1-5 As shown, the utility model provides a technical solution, a fuel tank isolation valve capable of preventing leakage, comprising an isolation valve housing 1, a feed pipe 2 is arranged at the top of one side of the isolation valve housing 1, a discharge pipe 3 is arranged at the bottom of the other side of the isolation valve housing 1, and a top mounting shell 4 is clamped at the middle of the top of the isolation valve housing 1;

[0035] A side auxiliary detection mechanism 5 is provided on one side of the isolation valve housing 1;

[0036] The side auxiliary detection mechanism 5 includes an installation side groove 501, a connecting top pipe 502, a vibration sensor 503, a connecting bottom rod 504, an installation threaded rod 505, a telescopic sleeve 506 and a limit film 507;

[0037] A mounting groove 501 is provided on one side of the isolation valve housing 1, a connecting top pipe 502 is embedded and installed in the middle of the top inner side of the mounting groove 501, a vibration sensor 503 is fixedly connected to the bottom end of the connecting top pipe 502 at a position corresponding to the inner side of the mounting groove 501, a connecting bottom rod 504 is fixedly connected to the middle of the bottom surface of the vibration sensor 503, a mounting threaded rod 505 is fixedly connected to the middle of the bottom surface of the connecting bottom rod 504, a telescopic sleeve 506 is threadedly sleeved on the outer bottom of the mounting threaded rod 505, a limiting film 507 is bonded to the middle of the bottom surface of the telescopic sleeve 506, an output end of the vibration sensor 503 and an external receiving end are connected to each other, a length of the mounting threaded rod 505 is less than a length of the telescopic sleeve 506, a bottom surface of the limiting film 507 is tightly fitted with the inner bottom surface of the mounting groove 501, An independent installation cavity is set on the outer side of the shell 1, and then the vibration sensor 503 and the components installed thereon are positioned inside the installation side groove 501 by connecting the top pipe 502, and then the telescopic sleeve 506 is driven to move by rotating the thread on the outer side of the installation threaded rod 505, so that the telescopic sleeve 506 can move along the axial direction of the outer side of the installation threaded rod 505 during the rotation process, and the limiting film 507 is driven to fit tightly with the inner wall of the installation side groove 501 during the movement of the telescopic sleeve 506, thereby realizing the fixation of the vibration sensor 503. The vibration generated during the operation of the isolation valve and the external vibration received can be detected in real time through the vibration sensor 503, so as to timely discover when the isolation valve is abnormal, thereby effectively improving the convenience of use of the isolation valve;

[0038] An auxiliary marking color display mechanism 6 is provided on the top edge of the top mounting shell 4;

[0039] The auxiliary mark color display mechanism 6 includes an installation arc groove 601, a limiting rectangular groove 602, an installation annular sheet 603 and a color display mark card 604;

[0040] An arc-shaped installation groove 601 is provided on the edge of the top surface of the top installation shell 4, and limited rectangular grooves 602 are evenly and equidistantly provided on the inner bottom surface of the arc-shaped installation groove 601 along the subcircumferential direction. An installation annular sheet 603 is embedded and installed inside the arc-shaped installation groove 601, and a color-developing marking card 604 is bonded to the top surface of the annular sheet 603 along the circumferential direction. The bottom of the annular sheet 603 is mutually buckled with the limited rectangular groove 602 through a rectangular small block, and the top surface of the annular sheet 603 is higher than the top surface of the top installation shell 4. An independent installation structure is provided on the top of the top installation shell 4 through the arc-shaped installation groove 601 and the limited rectangular groove 602, and the annular sheet 603 is clamped to the inside of the arc-shaped installation groove 601 through the limited rectangular groove 602, and then the orientation of each component of the isolation valve is marked by the color-developing marking card 604 to ensure that the isolation valve is more accurately positioned during the installation process, thereby effectively improving the convenience of the isolation valve installation;

[0041] An internal magnetic telescopic opening and closing mechanism 7 is provided inside the isolation valve housing 1;

[0042] The internal magnetic telescopic opening and closing mechanism 7 includes a telescopic spring 701, a lifting sealing piece 702, a wiring assembly 703, an electromagnetic driving assembly 704, a lifting driving assembly 705 and a sealing disc 706;

[0043] A telescopic spring 701 is installed at the bottom of the inner side of the isolation valve housing 1, and a lifting sealing piece 702 is fixedly connected to the top of the telescopic spring 701 corresponding to the bottom position of the inner side of the isolation valve housing 1. A wiring assembly 703 is fixedly installed on one side of the top of the isolation valve housing 1, and an electromagnetic drive assembly 704 is fixedly connected to one side of the wiring assembly 703 corresponding to the top position of the inner side of the isolation valve housing 1. A lifting drive assembly 705 is movably installed at the bottom of the inner side of the electromagnetic drive assembly 704, and a sealing disc 706 is arranged at the bottom of the lifting drive assembly 705. The wiring assembly 703 is electrically connected to the output end of the external power line, and the lifting sealing piece 702 and the sealing disc 706 can be used for the feed pipe 2 and the discharge pipe 3 is sealed, the lifting sealing piece 702 is continuously pushed upward by the telescopic spring 701, and the upper and lower cavities of the isolation valve housing 1 are sealed by the lifting sealing piece 702 to prevent the material backflow from the temporal part of the isolation valve housing 1, and then the electromagnetic drive component 704 is powered by the wiring component 703, and then the electromagnetic drive component 704 is lifted and lowered along the inside of the isolation valve housing 1 with the lifting drive component 705 and the sealing disc 706, and the connection of the upper and lower cavities in the isolation valve housing 1 is controlled by the lifting of the sealing disc 706, thereby realizing the smooth operation of various components inside the isolation valve and effectively improving the safety of the isolation valve.

[0044] Working principle and use process of the utility model: In the actual application process of the utility model, when using the isolation valve, it is necessary to first install the isolation valve housing 1 to a suitable position, and connect the feed pipe 2 and the discharge pipe 3 to the corresponding pipes respectively, and continuously push the lifting sealing piece 702 upward through the telescopic spring 701, and seal the upper and lower cavities of the isolation valve housing 1 through the lifting sealing piece 702 to prevent the material backflow from appearing in the temporal part of the isolation valve housing 1, and then power the electromagnetic drive component 704 through the wiring component 703, and then the electromagnetic drive component 704 with the lifting drive component 705 and the sealing disc 706 are lifted and lowered along the inside of the isolation valve housing 1, and the connection of the upper and lower cavities inside the isolation valve housing 1 is controlled by the lifting of the sealing disc 706, so as to realize the smooth operation of each component inside the isolation valve, and effectively improve the safety of the isolation valve;

[0045] During the continuous use of the isolation valve after installation, an independent installation cavity is set on the outside of the isolation valve housing 1 through the installation side groove 501, and then the vibration sensor 503 and the components installed thereon are positioned inside the installation side groove 501 through the connection top pipe 502, and then the telescopic sleeve 506 is driven to move by rotating the telescopic sleeve 506 in cooperation with the thread on the outside of the installation threaded rod 505, so that the telescopic sleeve 506 can move along the axial direction of the outside of the installation threaded rod 505 during the rotation process, and the limiting film 507 is driven to fit tightly with the inner wall of the installation side groove 501 during the movement of the telescopic sleeve 506, thereby achieving the fixation of the vibration sensor 503. The vibration generated during the operation of the isolation valve and the external vibration received can be detected in real time through the vibration sensor 503, so as to timely discover when the isolation valve is abnormal, thereby effectively improving the convenience of use of the isolation valve;

[0046] During the installation of the isolation valve, it is necessary to assist in positioning it. An independent mounting structure is set on the top of the top mounting shell 4 by installing the arc groove 601 and the limiting rectangular groove 602, and the mounting annular piece 603 is clamped into the inside of the mounting arc groove 601 through the limiting rectangular groove 602. Then, the orientation of each component of the isolation valve is marked by the color marking card 604 to ensure that the isolation valve is positioned more accurately during the installation process, thereby effectively improving the convenience of installation of the isolation valve.

[0047] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A fuel tank isolation valve capable of preventing leakage, comprising an isolation valve housing (1), characterized in that: A feed pipe (2) is arranged at the top of one side of the isolation valve housing (1), a discharge pipe (3) is arranged at the bottom of the other side of the isolation valve housing (1), and a top mounting shell (4) is clamped at the middle of the top end of the isolation valve housing (1); A side auxiliary detection mechanism (5) is provided on one side of the isolation valve housing (1); The side auxiliary detection mechanism (5) comprises a mounting side groove (501), a connecting top pipe (502), a vibration sensor (503), a connecting bottom rod (504), a mounting threaded rod (505), a telescopic sleeve (506) and a limiting film (507); A mounting groove (501) is provided on one side of the isolation valve housing (1), a connecting top pipe (502) is embedded and installed in the middle of the top inner side of the mounting groove (501), a vibration sensor (503) is fixedly connected to the bottom end of the connecting top pipe (502) at a position corresponding to the inner side of the mounting groove (501), a connecting bottom rod (504) is fixedly connected to the middle of the bottom surface of the vibration sensor (503), a mounting threaded rod (505) is fixedly connected to the middle of the bottom surface of the connecting bottom rod (504), a telescopic sleeve (506) is threadedly sleeved on the outer bottom of the mounting threaded rod (505), and a limiting film (507) is bonded to the middle of the bottom surface of the telescopic sleeve (506).

2. A fuel tank isolation valve capable of preventing leakage according to claim 1, characterized in that: The output end of the vibration sensor (503) is connected to the external receiving end, the length of the mounting threaded rod (505) is smaller than the length of the telescopic sleeve (506), and the bottom surface of the limiting film (507) is tightly fitted with the inner bottom surface of the mounting edge groove (501).

3. A fuel tank isolation valve capable of preventing leakage according to claim 1, characterized in that: An auxiliary marking color display mechanism (6) is provided on the top edge of the top mounting shell (4); The auxiliary mark color display mechanism (6) comprises an installation arc groove (601), a limiting rectangular groove (602), an installation annular sheet (603) and a color display mark card (604); The top surface edge of the top mounting shell (4) is provided with a mounting arc groove (601), the inner bottom surface of the mounting arc groove (601) is provided with finite rectangular grooves (602) evenly spaced along the subcircumferential direction, a mounting annular sheet (603) is embedded and mounted inside the mounting arc groove (601), and a color display mark card (604) is bonded to the top surface of the mounting annular sheet (603) along the circumferential direction.

4. A fuel tank isolation valve capable of preventing leakage according to claim 3, characterized in that: The bottom of the mounting annular sheet (603) is interlocked with the limiting rectangular groove (602) through a rectangular small block, and the top surface of the mounting annular sheet (603) is higher than the top surface of the top mounting shell (4).

5. A fuel tank isolation valve capable of preventing leakage according to claim 1, characterized in that: An internal magnetic telescopic opening and closing mechanism (7) is arranged inside the isolation valve housing (1); The internal magnetic telescopic opening and closing mechanism (7) comprises a telescopic spring (701), a lifting sealing sheet (702), a wiring assembly (703), an electromagnetic driving assembly (704), a lifting driving assembly (705) and a sealing disc (706); A telescopic spring (701) is installed at the bottom of the inner side of the isolation valve housing (1); a lifting seal (702) is fixedly connected to the top of the telescopic spring (701) at a position corresponding to the bottom of the inner side of the isolation valve housing (1); a wiring assembly (703) is fixedly installed on one side of the top of the isolation valve housing (1); an electromagnetic drive assembly (704) is fixedly connected to one side of the wiring assembly (703) at a position corresponding to the top of the inner side of the isolation valve housing (1); a lifting drive assembly (705) is movably installed at the bottom of the inner side of the electromagnetic drive assembly (704); and a sealing disc (706) is provided at the bottom of the lifting drive assembly (705).

6. A fuel tank isolation valve capable of preventing leakage according to claim 5, characterized in that: The wiring assembly (703) is electrically connected to the output end of the external power line, and the lifting sealing sheet (702) and the sealing disc (706) can seal between the feed pipe (2) and the discharge pipe (3).

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