Refueling bolt monitoring device

Abstract

The invention provides a refueling bolt monitoring device. A refueling bolt is arranged in a refueling bolt well body. The refueling bolt monitoring device comprises a supporting assembly which comprises a connecting piece and a plurality of supporting pieces connected with the connecting piece, the extending direction of the connecting piece intersects with the extending direction of the supporting pieces, and the supporting pieces are used for supporting a refueling bolt well body; the measuring piece is rotationally connected with the connecting piece, and when the supporting piece is supported on the refueling bolt well body, the rotating axis of the measuring piece is perpendicular to the horizontal plane; the positioning piece is slidably connected to the measuring piece; wherein the connecting piece comprises a plurality of sub connecting pieces, and the plurality of sub connecting pieces are telescopically connected or foldably connected so as to adjust the length of the connecting piece. Thus, the offset condition of the center of the refueling bolt can be determined according to the position of the positioning piece when the positioning piece is aligned with the refueling bolt, the length of the connecting rod can be adjusted by controlling the sub-connecting piece in the connecting piece to stretch out and draw back or fold, the overall size of the refueling bolt monitoring device can be reduced, and therefore the portability of the refueling bolt monitoring device is improved.

Description

Technical Field

[0001] This invention relates to the field of fuel plug monitoring technology, and more particularly to a fuel plug monitoring device. Background Technology

[0002] Apron pipeline refueling is a common method used at airports. It involves connecting a refueling plug, located within a refueling well, to the refueling truck and other equipment via a pipeline. In practice, due to geological changes, the refueling well may be compressed or even cracked, and the refueling plug may tilt, resulting in a less secure connection between the plug and the pipeline during refueling, posing a safety hazard. Currently, technicians often use a ruler to measure whether the center of the refueling plug has shifted within the well, thus identifying potential safety hazards such as well deformation or plug tilt. While rulers are generally portable and this method is simple and feasible, it relies heavily on the experience of technicians and is prone to significant errors in measuring plug center shift, resulting in low accuracy. Summary of the Invention

[0003] This application provides a fuel filler monitoring device to improve the accuracy of fuel filler center offset measurement, thereby improving the accuracy of overall safety risk assessment of fuel fillers, while also taking into account the portability of the fuel filler monitoring device.

[0004] This application provides a fuel filler monitoring device, wherein the fuel filler is installed inside the fuel filler well body; the fuel filler monitoring device includes: a support assembly, including a connector and a plurality of support members connected to the connector, the extension direction of the connector intersects the extension direction of the support members, and the support members are used to support the fuel filler well body; a measuring member, rotatably connected to the connector, wherein when the support members are supported on the fuel filler well body, the rotation axis of the measuring member is perpendicular to the horizontal plane; and a positioning member, slidably connected to the measuring member; wherein the connector includes a plurality of sub-connectors, which are telescopically or foldably connected to each other to adjust the length of the connector.

[0005] Optionally, the connector includes a rotating shaft, and multiple sub-connectors are hinged together by the rotating shaft; wherein the rotating shaft is located on the rotation axis of the measuring component, and the sub-connectors on both sides of the rotating shaft are controlled to rotate relative to each other around the rotating shaft, thereby causing the support connected to the connector to fold.

[0006] Optionally, the support includes multiple sub-supports, which are telescopically or foldably connected to each other to adjust the length of the support.

[0007] Optionally, the measuring element includes multiple sub-measuring elements that are telescopically or foldably connected to each other to adjust the length of the measuring element.

[0008] Optionally, the measuring component includes: a slide rail, which is slidably connected to the positioning component, the slide rail including multiple sub-slide rails, which are telescopically or foldably connected to each other to adjust the length of the slide rail; and a fixing part, which is rotatably connected to the connecting component and fixedly connected to both ends of the slide rail; the fixing part including multiple sub-fixing parts, which are telescopically or foldably connected to each other to adjust the length of the fixing part.

[0009] Optionally, the fuel filler plug has a protrusion at its center; the positioning element includes: a slider slidably connected to the measuring element; and a positioning part fixedly connected to the slider and extending away from the connecting element; wherein the end of the positioning part includes a recess for engaging with the protrusion of the fuel filler plug.

[0010] Optionally, at least part of the positioning part is a sleeve, and the internal cavity of the sleeve mates with the protrusion of the refueling plug.

[0011] Optionally, the fuel filler monitoring device further includes a locking element disposed on the support assembly for securing the support assembly in its current deployed position.

[0012] Optionally, the fuel filler monitoring device further includes: a drive device for driving the positioning element to slide on the measuring element and for driving the measuring element to rotate; a first monitoring device for monitoring the relative position of the positioning element and the center of the fuel filler; and a control device electrically connected to the drive device and the first monitoring device for controlling the drive device to align the positioning element with the center of the fuel filler.

[0013] Optionally, the positioning element includes an extension adjustment device electrically connected to the control device for controlled extension and retraction to adjust the distance between the end of the positioning element and the measuring element; the control device is used to control the extension and retraction of the extension adjustment device so that the end of the positioning element contacts the oil plug.

[0014] Optionally, the fuel filler monitoring device further includes: a second monitoring device electrically connected to the control device for monitoring the distance between the rotation axes of the positioning element and the measuring element; and / or a third monitoring device disposed on the measuring element and electrically connected to the control device for monitoring the extension direction of the measuring element.

[0015] Optionally, the fuel filler monitoring device further includes: a height adjustment device for adjusting the height of at least a portion of the support member in the extension direction; a fourth monitoring device for monitoring the tilt of the measuring member; both the height adjustment device and the fourth monitoring device are electrically connected to a control device, which controls the height adjustment device to adjust the height of at least a portion of the support member in the extension direction so that the measuring member is horizontal.

[0016] The refueling hydrant monitoring device provided in this application has a support member that rests on the refueling hydrant well body. A measuring member, driven by a connector, is positioned above the refueling hydrant well body, and the measuring member can rotate in a plane parallel to the horizontal. The positioning member is moved by controlling the movement of the positioning member on the measuring member and the rotation of the measuring member to align the positioning member with the center of the refueling hydrant. The position of the positioning member on the measuring scale at this time determines the offset of the refueling hydrant center. An offset of the refueling hydrant center relative to the refueling hydrant well body indicates deformation of the well body or tilting of the refueling hydrant, thus enabling the assessment of refueling hydrant safety risks. The length of the connecting rod can be adjusted by controlling the extension or folding of the sub-connector in the connector. When portable, the sub-connector can be compressed or folded, reducing the overall size of the refueling hydrant monitoring device and improving its portability without affecting its monitoring function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a fuel filler monitoring device provided in one embodiment of this application; Figure 2 This is a schematic diagram of the structure of a fuel filler monitoring device provided in another embodiment of this application; Figure 3 This is a schematic diagram of the structure of a fuel filler monitoring device provided in another embodiment of this application; Figure 4 This is a schematic diagram of the architecture of a fuel plug monitoring device provided in one embodiment of this application.

[0018] Figure Labels 1: Fuel hydrant well body; 10: Connector; 20: Support; 201: Interlocking joint; 30: Rotating shaft; 11: First connector; 12: Second connector; 13: Third connector; 14: Fourth connector; 21: First support; 22: Second support; 23: Third support; 24: Fourth support; 31: First rotating shaft; 32: Second rotating shaft; 40: Measuring component; 401: Slide rail; 402: Fixing part; 50: Positioning component; 501: Slider; 502: Positioning part; 60: Gripper; 71: Drive device; 72: Extension adjustment device; 73: Height adjustment device; 81: First monitoring device; 82: Second monitoring device; 83: Third monitoring device; 84: Fourth monitoring device; 90: Control device. Detailed Implementation

[0019] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings.

[0020] Combination Figures 1 to 4 This application provides a fuel filler monitoring device, wherein the fuel filler is installed inside the fuel filler well body 1.

[0021] Combination Figure 1 As shown, the fuel plug monitoring device provided in this application embodiment includes a support assembly, a measuring component 40, and a positioning component 50.

[0022] The support assembly includes a connector 10 and multiple support members 20 connected to the connector 10. The extending direction of the connector 10 intersects the extending direction of the support members 20, and the support members 20 are used to support the refueling hydrant well body 1. A measuring member 40 is rotatably connected to the connector 10. When the support members 20 are supported on the refueling hydrant well body 1, the rotation axis of the measuring member 40 is perpendicular to the horizontal plane. A positioning member 50 is slidably connected to the measuring member 40. The connector 10 includes multiple sub-connectors 10, which are telescopically or foldably connected to each other to adjust the length of the connector 10.

[0023] The refueling hydrant monitoring device provided in this application embodiment has a support member 20 supported on the refueling hydrant well body 1. A measuring member 40 is driven by a connector 10 and positioned above the refueling hydrant well body 1, and the measuring member 40 can rotate in a plane parallel to the horizontal plane. The positioning member 50 is moved by controlling the movement of the positioning member 50 on the measuring member 40 and by the rotation of the measuring member 40, so that the positioning member 50 is aligned with the center of the refueling hydrant. The position of the positioning member 50 on the measuring scale at this time determines the offset of the refueling hydrant center. An offset of the refueling hydrant center relative to the refueling hydrant well body 1 indicates deformation of the refueling hydrant well body 1 or tilting of the refueling hydrant, thus enabling the assessment of the safety risk of the refueling hydrant. The length of the connecting rod can be adjusted by controlling the extension, retraction, or folding of the sub-connector 10 in the connector 10. When carrying the device, the sub-connector 10 can be compressed or folded, which helps to reduce the overall size of the refueling hydrant monitoring device, thereby improving its portability without affecting its monitoring function.

[0024] The aforementioned support components are described in more detail below. In some embodiments, the fewer the number of support members 20, the larger the cross-sectional area of ​​the support members 20. This helps to avoid instability in the support component due to a small number of support members 20 and an excessively small cross-sectional area, thereby helping to ensure the support stability of the support component.

[0025] In some embodiments, when the support member 20 is supported on the refueling hydrant well body 1, the rotation axis of the measuring member 40 is aligned with the ideal center position of the wellhead of the refueling hydrant well body 1. Specifically, in some embodiments, the distance between each support member 20 and the rotation axis of the measuring member 40 is equal, and the position of each support member 20 is located on the circle containing the well wall of the refueling hydrant well body 1, or on a concentric circle of the well wall of the refueling hydrant well body 1. This ensures that during the use of the refueling hydrant monitoring equipment, the rotation axis of the measuring member 40 is aligned with the ideal center position of the wellhead of the refueling hydrant well body 1. After the positioning member 50 is aligned with the actual refueling hydrant center, the distance between the position of the positioning member 50 on the measuring member 40 and the rotation axis of the measuring member 40 can determine the offset of the positioning member 50, that is, the offset of the refueling hydrant center, which helps to improve the accuracy of the refueling hydrant center offset determination process.

[0026] In some embodiments, the aforementioned support member 20 has an overlap interface 201 at the end away from the connector 10, for overlapping the well wall of the refueling hydrant well body 1. More specifically, the overlap interface 201 is a right-angled interface. This adapts to the well wall structure of the refueling hydrant wellhead, which helps to improve the support stability when the support component overlaps the well wall of the refueling hydrant wellhead.

[0027] In some embodiments, the included angles formed by the connection between the connector 10 and the support member 20 are all equal. This helps to improve the support stability of the support assembly. Specifically, in some embodiments, the connector 10 and each support member 20 are arranged perpendicularly. The vertical structure helps to improve the stability of the support assembly during use and reduces the risk of deformation. It also facilitates storage and improves the portability of the support assembly and even the entire fuel filler monitoring device. In other embodiments, the included angles between the connector 10 and each support member 20 may be obtuse angles.

[0028] In some embodiments, the connector 10 includes a rotation shaft 30, and multiple sub-connectors 10 are hinged together via the rotation shaft 30. The rotation shaft 30 is located on the rotation axis of the measuring member 40, and the sub-connectors 10 on both sides of the rotation shaft 30 are controlled to rotate relative to each other around the rotation shaft 30, causing the support member 20 connected to the connector 10 to fold. The folding and unfolding of the support assembly can be achieved by controlling the rotation of multiple connectors 10 relative to the rotation shaft 30, switching between a storage state and a use state. One or more rotation shafts 30 are provided.

[0029] In some embodiments, the connector 10 and the support 20 are fixedly connected. More specifically, in some embodiments, the connector 10 and the support 20 are connected in an integrated manner. This helps to ensure the stability of the connection between the connector 10 and the support 20, thereby improving the overall support stability of the support assembly.

[0030] Combination Figure 2 As shown, exemplarily, the connector 10 in the fuel plug monitoring device provided in this application embodiment includes a first connector 11, a second connector 12, a third connector 13, and a fourth connector 14. The first connector 11 and the third connector 13 are hinged together by a first rotating shaft 31, and the second connector 12 and the fourth connector 14 are hinged together by a second rotating shaft 32. Correspondingly, the support member 20 includes a first support member 21 connected to the first connector 11, a second support member 22 connected to the second connector 12, a third support member 23 connected to the third connector 13, and a fourth support member 24 connected to the fourth connector 14. The first connector 11 is hinged at one end to the first rotating shaft 31 and at the other end to the first support member 21; the second connector 12 is hinged at one end to the second rotating shaft 32 and at the other end to the second support member 22; the third connector 13 is hinged at one end to the first rotating shaft 31 and at the other end to the third support member 23; the fourth connector 14 is hinged at one end to the second rotating shaft 32 and at the other end to the fourth support member 24.

[0031] Thus, by controlling the first connector 11 and the third connector 13 to rotate around the first rotating shaft 31, the first support 21 and the third support 23 can be driven to rotate relative to each other. By controlling the second connector 12 and the fourth connector 14 to rotate around the second rotating shaft 32, the second support 22 and the fourth support 24 can be driven to rotate, thereby realizing the folding and unfolding of the support components. This allows the fuel plug monitoring device to switch between the storage state and the use state, which helps to reduce the volume of the fuel plug monitoring device in the storage state and improve the portability of the fuel plug monitoring device.

[0032] In other embodiments, the folding method and the length of the connector 10 after folding can be controlled by adjusting the number and position of the rotating shafts 30. Besides the foldable connection between sub-connectors 10 via hinged joints of the rotating shafts 30, multiple sub-connectors 10 can also be connected in a telescopic manner via sliding rails to achieve relative sliding between them, thereby adjusting the length of the connector 10. In the extended state, it is used to monitor the center of the refueling plug; in the compressed state, it is easy to store, improving portability without affecting the function of the refueling plug monitoring device. Furthermore, compared to a foldable connection, a telescopic connection allows for more specific and accurate control over the length of the connector 10. By controlling the degree of extension, it can adapt to wells of different sizes, improving the versatility of the refueling plug monitoring device.

[0033] In some embodiments, the support member 20 includes a plurality of sub-support members 20, which are telescopically or foldably connected to each other to adjust the length of the support member 20. Thus, by compressing or folding the support member 20, its length can be reduced, which helps to reduce the size of the fuel filler monitoring device, thereby improving its portability without affecting its monitoring function. Specifically, the telescopic connection between the sub-support members 20 can be achieved through a telescopic slide rail, and the foldable connection between the sub-support members 20 can be achieved through a hinged connection via a rotating shaft 30.

[0034] In some embodiments, the measuring element 40 includes a plurality of sub-measuring elements 40, which are telescopically or foldably connected to each other to adjust the length of the measuring element 40. The plurality of sub-measuring elements 40 are telescopically or foldably connected along the extending direction of the measuring element 40. The telescopic connection between the sub-measuring elements 40 can be achieved through a slide rail connection, while the foldable connection can be achieved through a hinged connection via a rotating shaft 30. Thus, by compressing or folding the measuring element 40, its length can be reduced, which helps to reduce the size of the fuel plug monitoring device, thereby improving the portability of the fuel plug monitoring device without affecting its monitoring function.

[0035] Specifically, in some embodiments, the measuring element 40 includes a slide rail 401 and a fixing part 402. The slide rail 401 is slidably connected to the positioning element 50, and the fixing part 402 is rotatably connected to the connecting element 10 and fixedly connected to both ends of the slide rail 401. The slide rail 401 includes multiple sub-slide rails, which are telescopically or foldably connected to each other to adjust the length of the slide rail 401. The telescopic connection between the multiple sub-slide rails can be achieved through telescopic slide rails or elastic buckles, and the foldable connection between the sub-slide rails can be achieved through hinged connection via a rotating shaft 30. Corresponding to the slide rail 401, the fixing part 402 includes multiple sub-fixing parts 402, which are telescopically or foldably connected to each other to adjust the length of the fixing part 402. The telescopic connection between the sub-fixing parts 402 can be achieved through slide rail connection, and the foldable connection between the sub-fixing parts 402 can be achieved through hinged connection via a rotating shaft 30. Thus, by compressing or folding the measuring component 40, the length of the measuring component 40 can be reduced, which helps to reduce the volume of the fuel plug monitoring device, thereby improving the portability of the fuel plug monitoring device without affecting its monitoring function.

[0036] In some embodiments, the fuel filler monitoring device further includes a locking element disposed on the support assembly for securing the support assembly in its current deployed position. The locking element may be, for example, a latch, a knob, or a spring lock. Depending on the specific securing requirements, the locking elements may be disposed in different locations and in different numbers.

[0037] In some embodiments, a protrusion is provided at the center of the fuel filler cap. Specifically, the protrusion is located at the center of the top surface of the fuel filler cap. In some embodiments, the protrusion is the protrusion at the center of the vent valve on the top surface of the fuel filler cap. In other embodiments, it may be a protrusion added separately to the top surface of the fuel filler cap. The positioning member 50 includes a slider 501 and a positioning part 502. The slider 501 is slidably connected to the measuring member 40, and more specifically, the slider 501 cooperates with a slide rail in the measuring member 40 and can slide along the slide rail. The positioning part 502 is fixedly connected to the slider 501 and extends away from the connecting member 10. The end of the positioning part 502 includes a recess for cooperating with the protrusion of the fuel filler cap. In this way, the recess at the end of the positioning part 502 abuts against the protrusion at the center of the fuel filler cap, thereby aligning the positioning member 50 with the center of the fuel filler cap, which helps to reduce alignment errors and improve alignment accuracy.

[0038] Furthermore, in some embodiments, at least a portion of the positioning part 502 is a sleeve, the internal cavity of which mates with the protrusion of the fuel filler plug. The sleeve fitted onto the protrusion of the fuel filler plug ensures alignment between the positioning member 50 and the center of the fuel filler plug, guaranteeing accurate alignment.

[0039] Combination Figure 3 As shown, in some embodiments, the fuel filler valve monitoring device further includes a grip 60 connected to the support assembly. The user can use the grip 60 as a handle to facilitate movement of the fuel filler valve monitoring device. Figure 3 In some embodiments, the grip 60 may be arranged parallel to a portion of the connector 10. Further, adapted to the telescopic or foldable connection of each sub-connector 10 in the connector 10, in some embodiments, the grip 60 includes multiple sub-grips 60, and the sub-grips 60 are telescopically or foldably connected to each other to adjust the length of the grip 60. This achieves overall volume control of the refueling plug monitoring device.

[0040] Combination Figure 4 As shown, this application embodiment provides another fuel filler plug monitoring device, which further includes a drive device 71, a first monitoring device 81, and a control device 90 electrically connected to the drive device 71 and the first monitoring device 81. The drive device 71 is used to drive the positioning member 50 to slide on the measuring member 40 and to drive the measuring member 40 to rotate. The first monitoring device 81 is used to monitor the relative position of the positioning member 50 and the center of the fuel filler plug. The control device 90 is used to control the drive device 71 to align the positioning member 50 with the center of the fuel filler plug.

[0041] In this way, the position control of the positioning element 50 can be achieved by controlling the drive device 71 through the control device 90, and the relative position of the positioning element 50 and the center of the fuel filler plug can be monitored through the first monitoring device 81. Thus, the positioning element 50 and the center of the fuel filler plug can be automatically aligned by controlling the position of the positioning element 50.

[0042] The first monitoring device 81, the drive device 71, and the control device 90 can each be configured as one or more during implementation.

[0043] Furthermore, the first monitoring device 81 here is at least used to monitor whether the positioning member 50 is aligned with the center of the fuel filler plug. Exemplarily, the first monitoring device 81 is, for example, an image monitoring device, a laser alignment device, an electromagnetic induction device, etc. Further, the first monitoring device 81 is used to monitor the real-time relative position of the positioning member 50 and the center of the fuel filler plug. Specifically, based on the relative position between the positioning member 50 and the center of the fuel filler plug, the control device 90 controls the drive device 71 to perform at least one of driving the positioning member 50 to slide on the measuring member 40 and driving the measuring member 40 to rotate, so that the positioning member 50 moves closer to the center of the fuel filler plug, and ultimately aligns the positioning member 50 with the center of the fuel filler plug.

[0044] In some embodiments, the aforementioned positioning member 50 includes an extension adjustment device 72 electrically connected to a control device 90 for controlled extension and retraction to adjust the distance between the end of the positioning member 50 and the measuring member 40. The control device 90 controls the extension and retraction of the extension adjustment device 72 to bring the end of the positioning member 50 into contact with the fuel filler plug. The extension adjustment device 72 is disposed on the positioning member 50 and can adjust the distance between the end of the positioning member 50 and the measuring member 40 through extension and retraction control. Thus, by controlling the extension and retraction of the extension adjustment device 72, the position of the end of the positioning member 50 is controlled to bring it into contact with the fuel filler plug, achieving alignment between the positioning member 50 and the center of the fuel filler plug, which helps ensure the accuracy of the automatic alignment process. During implementation, the extension adjustment device 72 can be set to an initial position. After alignment begins, the positioning member 50 gradually extends, causing the end of the positioning member 50 to gradually approach the center of the fuel filler plug, ultimately achieving contact between the center of the fuel filler plug and the end of the positioning member 50. Specifically, in some embodiments, the aforementioned first monitoring device 81 is used to monitor whether the end of the positioning member 50 is in contact with the center of the fuel filler plug. Specifically, one or more of the following methods can be used to determine whether the distance between the end of the positioning component 50 and the center of the fuel filler plug is 0, such as image detection or infrared detection, or to monitor the extension of the positioning component 50 by motor load to determine whether the end of the positioning component 50 is in contact with the center of the fuel filler plug.

[0045] In some embodiments, the fuel filler plug monitoring device further includes a second monitoring device 82, which is electrically connected to the control device 90 and is used to monitor the distance between the rotation axes of the positioning member 50 and the measuring member 40. The second monitoring device 82 is, for example, an image monitoring device or a distance monitoring device. Thus, the degree of offset of the fuel filler plug center can be determined by the distance between the rotation axes of the positioning member 50 and the measuring member 40, achieving automatic determination of the degree of fuel filler plug center offset. The greater the distance between the rotation axes of the positioning member 50 and the measuring member 40, the more severe the offset of the fuel filler plug center.

[0046] In some embodiments, the surface of the measuring element 40 is provided with graduations along its extending direction. Thus, the degree of offset of the fuel filler nozzle center can be directly determined by the distance between the graduation where the current positioning block is located and the graduation where the rotation axis of the measuring element 40 is located. More specifically, in some embodiments, the graduation where the rotation axis of the measuring element 40 is located is 0, and the graduations are provided to both sides along the extending direction of the measuring element 40. This facilitates the determination of the degree of offset of the fuel filler nozzle center.

[0047] In some embodiments, the fuel filler valve monitoring device includes a display device. In some embodiments, the fuel filler valve monitoring device is electrically connected to an external display device. The display device is used to display whether the center of the fuel filler valve has shifted, and further, the display device is used to display the distance between the measuring axis of the positioning member 50 and the measuring member 40. This allows technicians to promptly understand the current offset of the fuel filler valve center, thereby promptly determining the current safety risk of the fuel filler valve.

[0048] In some embodiments, the fuel filler plug monitoring device further includes a third monitoring device 83, which is disposed on the measuring element 40 and electrically connected to the control device 90, for monitoring the extension direction of the measuring element 40. This allows for automatic determination of the offset direction of the fuel filler plug center, facilitating technicians to connect to a more accurate fuel filler plug center offset. The third monitoring device 83 is a direction monitoring device. In some embodiments, the third monitoring device 83 is disposed on the measuring element 40 and rotates with the measuring element 40. For example, a compass can be used as the third monitoring device 83, fixedly disposed on the measuring element 40. In other embodiments, the third monitoring device 83 may not rotate with the measuring element 40; it only needs to detect the offset between the current extension direction of the measuring element 40 and a set marked direction.

[0049] Furthermore, in some embodiments, the aforementioned display device is used to display the extension direction of the monitoring element so that the user can read it.

[0050] In some embodiments, the fuel filler monitoring device further includes a height adjustment device 73 and a fourth monitoring device 84, both of which are electrically connected to the control device 90. The height adjustment device 73 adjusts the height of at least a portion of the support members 20 in the extension direction; the fourth monitoring device 84 monitors the tilt of the measuring member 40. The control device 90 controls the height adjustment device 73 to adjust the height of at least a portion of the support members 20 in the extension direction to make the measuring member 40 horizontal. Thus, the height adjustment device 73 can level the measuring member 40, preventing the measuring member 40 from being horizontal due to the support members 20 not being positioned on the same horizontal plane or the current lengths between the supports being inconsistent, thus avoiding the positioning member 50 moving under gravity. Specifically, the control device 90 controls the height adjustment device 73 based on the tilt of the measuring member 40 detected by the fourth monitoring device 84, causing the measuring member 40 to move towards a horizontal state. The fourth monitoring device 84 is, for example, a level or an image monitoring device.

[0051] In some embodiments, the support member 20 includes multiple sub-support members 20, which are telescopically or foldably connected to each other for adjusting the length of the support member 20. In this case, the height adjustment device 73 can be a drive motor for controlling the telescopic or folding process. The control device 90 controls the telescopic or folding process through the drive motor, thereby adjusting the overall height of the support member 20 in the extension direction. In some embodiments, the height adjustment device can also be a device that adjusts the overall height of the support member 20 in the extension direction without changing the length of the support member 20 itself. For example, a hydraulic lifting device, a spiral lifting device, an air cushion lifting device, or a spring lifting device can be provided at the bottom of each support member 20.

[0052] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A fuel filler monitoring device, characterized in that, The refueling hydrant is installed inside the refueling hydrant well; the refueling hydrant monitoring device includes: A support assembly includes a connector and a plurality of support members connected to the connector, wherein the extending direction of the connector intersects the extending direction of the support members, and the support members are used to support the refueling hydrant well body; The measuring component is rotatably connected to the connecting component. When the supporting component is supported on the refueling hydrant well body, the rotation axis of the measuring component is perpendicular to the horizontal plane. The positioning element is slidably connected to the measuring element; The connector includes multiple sub-connectors, which are retractably or foldably connected to each other to adjust the length of the connector.

2. The fuel filler monitoring device according to claim 1, characterized in that, The connector includes a rotating shaft, and the plurality of sub-connectors are hinged together via the rotating shaft; The rotating shaft is located on the rotating axis of the measuring component, and the sub-connectors on both sides of the rotating shaft are controlled to rotate relative to each other around the rotating shaft, causing the support component connected to the connector to fold.

3. The fuel filler monitoring device according to claim 1, characterized in that, The support member includes multiple sub-support members, which are telescopically or foldably connected to each other to adjust the length of the support member.

4. The fuel filler monitoring device according to claim 1, characterized in that, The measuring element includes multiple sub-measuring elements, which are telescopically or foldably connected to each other to adjust the length of the measuring element.

5. The fuel filler monitoring device according to claim 4, characterized in that, The measuring element includes: A slide rail is slidably connected to the positioning member. The slide rail includes multiple sub-slide rails that are telescopically or foldably connected to each other to adjust the length of the slide rail. The fixing part is rotatably connected to the connector and fixedly connected to both ends of the slide rail; the fixing part includes multiple sub-fixing parts, and the multiple sub-fixing parts are telescopically or foldably connected to each other to adjust the length of the fixing part.

6. The fuel filler monitoring device according to claim 1, characterized in that, The fuel filler plug has a protrusion at its center; The positioning element includes: A slider is slidably connected to the measuring element; The positioning part is fixedly connected to the slider and extends away from the connector; The end of the positioning part includes a recessed part for engaging with the protrusion of the fuel filler plug.

7. The fuel filler monitoring device according to claim 6, characterized in that, At least a portion of the positioning part is a sleeve, and the internal cavity of the sleeve mates with the protrusion of the refueling plug.

8. The fuel filler monitoring device according to claim 1, characterized in that, Also includes: A locking element is provided on the support assembly for fixing the support assembly in its current deployed posture.

9. The fuel filler monitoring device according to claim 1, characterized in that, Also includes: A driving device is used to drive the positioning member to slide on the measuring member and to drive the measuring member to rotate; The first monitoring device is used to monitor the relative position of the positioning component and the center of the fuel filler plug; A control device, electrically connected to the drive device and the first monitoring device, is used to control the drive device to align the positioning element with the center of the refueling plug.

10. The fuel filler monitoring device according to claim 9, characterized in that, The positioning element includes an extension adjustment device electrically connected to the control device for controlled extension and retraction to adjust the distance between the end of the positioning element and the measuring element; The control device is used to control the extension and adjustment device to extend and retract so that the end of the positioning member contacts the oil plug.

11. The fuel filler monitoring device according to claim 9, characterized in that, Also includes: The second monitoring device is electrically connected to the control device and is used to monitor the distance between the rotation axes of the positioning element and the measuring element. and / or A third monitoring device is installed on the measuring element and electrically connected to the control device, for monitoring the extension direction of the measuring element.

12. The fuel filler monitoring device according to claim 9, characterized in that, Also includes: A height adjustment device for adjusting the height of at least a portion of the support member in the extension direction; The fourth monitoring device is used to monitor the tilt of the measuring element; Both the height adjustment device and the fourth monitoring device are electrically connected to the control device, which controls the height adjustment device to adjust the height of at least a portion of the support member in the extension direction so that the measuring member is horizontal.

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