Fueling gun and fueling system

Abstract

The embodiment of the present specification provides a refueling gun, comprising: a refueling pipe provided with an oil outlet port; a signal sensing assembly arranged outside the refueling pipe; an offset assembly movable along the axial direction of the refueling pipe and arranged between the signal sensing assembly and the oil outlet port along the axial direction of the refueling pipe; wherein the signal sensing assembly is configured to send a signal to position when the offset assembly moves towards the signal sensing assembly along the axial direction of the refueling pipe, and the signal to position is used to indicate that the refueling pipe has been inserted to a preset position of an oil tank.

Description

Technical Field

[0001] This manual relates to the field of fuel refueling equipment technology, and in particular to a fuel nozzle and a refueling system. Background Technology

[0002] When refueling a fuel tank, to ensure safety throughout the refueling process, the fuel nozzle should be inserted as far into the tank as possible before driving the nozzle to inject fuel into the tank. Otherwise, fuel may be injected outside the tank, which could pose a safety risk. Utility Model Content

[0003] In order to solve at least one technical problem existing in the prior art, one object of the embodiments of this specification is to provide a refueling nozzle and a refueling system that allows refueling only when the refueling nozzle is fully inserted into the fuel tank.

[0004] This specification provides one or more embodiments of a fuel dispenser, the fuel dispenser comprising: a fuel pipe having a fuel outlet port; a signal sensing component disposed outside the fuel pipe; and an offset component movable along the axial direction of the fuel pipe and disposed between the signal sensing component and the fuel outlet port along the axial direction of the fuel pipe; wherein the signal sensing component is configured to send a positioning signal when the offset component is displaced along the axial direction of the fuel pipe toward the signal sensing component, the positioning signal indicating that the fuel pipe has been inserted into a preset position in the fuel tank.

[0005] This specification provides a refueling system according to one or more embodiments, the refueling system comprising: a refueling nozzle as described in any of the embodiments of this specification; and a control terminal configured to: in response to receiving a positioning signal sent by the refueling nozzle, switch the refueling nozzle to allow fuel to flow out from the refueling pipe of the refueling nozzle.

[0006] Beneficial effects: The fuel nozzle provided in this embodiment detects the axial movement of the offset component toward the signal sensing component, automatically identifying whether the fuel hose has been inserted into the predetermined position of the fuel tank. This ensures that refueling is only permitted after the fuel nozzle is in place, thereby preventing fuel leakage and improving the safety of the entire refueling process. The refueling system provided in this embodiment can control the fuel flow after receiving the fuel nozzle's positioning signal, so that refueling automatically begins after the fuel hose is inserted into place, thereby achieving safety control and preventing fuel leakage when the fuel hose is not inserted into place.

[0007] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto.

[0008] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0009] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components. Attached Figure Description

[0010] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0011] Figure 1A This is an exemplary cross-sectional structural diagram of a refueling nozzle according to some embodiments of this specification;

[0012] Figure 1B This is another exemplary structural diagram of a refueling nozzle shown in some embodiments of this specification; and

[0013] Figure 2 This is an exemplary structural diagram of a refueling system according to some embodiments of this specification. Detailed Implementation

[0014] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings do not represent all implementation methods.

[0015] It should be understood that the terms "system," "device," "unit," and / or "module" used herein are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. If other terms can achieve the same purpose, they may be replaced by other expressions.

[0016] As indicated in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0017] In the embodiments of this specification, the order of the steps described in the step-by-step instructions is interchangeable unless otherwise specified, and steps may be omitted. Other steps may also be included in the operation process.

[0018] Figure 1A This is an exemplary cross-sectional structural diagram of a fuel nozzle according to some embodiments of this specification. In some embodiments, such as Figure 1A As shown, the refueling nozzle 100 may include a refueling pipe 110, an offset assembly 130, and / or a signal sensing assembly 120, etc.

[0019] The refueling hose 110 can be used to deliver fuel. For example, fuel can flow through the refueling hose 110 to a fuel tank that needs to be refueled (e.g., a vehicle's fuel tank, hereinafter referred to as the target fuel tank).

[0020] In some embodiments, the refueling pipe 110 may include an inlet port and an outlet port. For example, one end of the refueling pipe 110 may be an inlet port, allowing fuel to flow into the refueling pipe 110 through the inlet port. As another example, the other end of the refueling pipe 110 may be an outlet port, allowing fuel to flow from the refueling pipe 110 to the fuel tank through the outlet port. In some embodiments, the inlet port of the refueling pipe 110 may be connected to a fuel storage device.

[0021] In some embodiments, the control terminal 210 can control whether fuel can enter the refueling pipe 110 of the refueling nozzle 100. For example, an inlet valve can be provided at the inlet port of the refueling pipe 110, allowing fuel to flow into the refueling pipe 110 only when the inlet valve is open. In some embodiments, the control terminal 210 can control the opening or closing of the inlet valve. For example, upon receiving a positioning signal, the control terminal 210 can open the inlet valve to allow fuel from external devices (e.g., fuel storage devices) to flow into the refueling pipe 110, thereby refueling the target fuel tank X, thus ensuring the controllability of the refueling process. Further explanation of the control terminal 210 and the positioning signal can be found in the following sections.

[0022] The signal sensing component 120 can be used to send and / or receive signals. For example, the signal sensing component 120 can send a fuel nozzle arrival signal to an external device (e.g., the control terminal 210 corresponding to the fuel nozzle 100) to notify the control terminal 210 that the fuel nozzle 100 has been inserted into a preset position in the fuel tank. Only after ensuring that the fuel nozzle 100 is inserted in place will the control terminal 210 control the fuel nozzle 100 to refuel (e.g., open the fuel inlet valve to allow fuel to flow in from the fuel inlet port), thereby ensuring the safety of the entire refueling process.

[0023] In some embodiments, such as Figure 1AAs shown, the signal sensing component 120 can be disposed on the outside of the refueling pipe 110. For example, the signal sensing component 120 can be directly disposed on the surface of the refueling pipe 110 and fixedly connected to the refueling pipe 110.

[0024] The offset component 130 refers to a component capable of moving along the axial direction of the refueling pipe 110. In some embodiments, the offset component 130 may be disposed on the refueling pipe 110. For example, as... Figure 1A As shown, the offset component 130 can be disposed along the axial direction of the refueling pipe 110, between the signal sensing component 120 and the fuel outlet port. When the refueling pipe 110 is inserted into the fuel tank to a preset position, the offset component 130 is displaced along the axial direction of the refueling pipe 110 towards the signal sensing component 120 by an external force acting on the fuel tank opening, thereby triggering the signal sensing component 120 to send a positioning signal. The positioning signal can be used to indicate that the refueling pipe 110 has been inserted into the preset position of the fuel tank. The preset position refers to the position where fuel will not spread or splash outside the target fuel tank X when the refueling nozzle 100 refuels the target fuel tank X. In some embodiments, the preset position can be set by the operator.

[0025] In some embodiments, the offset component 130 may be provided with a magnet 160 that moves synchronously with the offset component 130. For example, the surface of the offset component 130 and / or the interior of the offset component may be provided with a magnet 160 so that when the offset component 130 moves toward the signal sensing component 120, the magnet 160 can move synchronously with the offset component 130, thereby changing the magnetic field around the signal sensor (magnetic sensor) so that the magnetic sensor generates a corresponding signal.

[0026] In some embodiments, the offset component 130 may be a magnetic element. For example, the material of the offset component 130 may include at least a magnetic material, so that the offset component 130 itself is magnetic, thereby causing the magnetic field around the signal sensor (magnetic sensor) to generate a corresponding signal when the offset component 130 moves toward the signal sensing component 120.

[0027] In some embodiments, the signal sensing component 120 may include a magnetic sensor. A magnetic sensor is a sensor capable of converting changes in the surrounding magnetic field into an electrical signal output. For example, as the offset component 130 approaches the magnetic sensor, the magnetic sensor detects an increase in the surrounding magnetic field. The Hall effect sensor inside the magnetic sensor can generate a high-level signal (i.e., the aforementioned position signal) based on the increased magnetic field strength. Upon receiving this high-level signal, the control terminal 210 recognizes that the refueling hose 110 is in position and controls the fuel inlet valve to open, allowing fuel to flow out. In some embodiments, to prevent accidental contact of the offset component 130 that could cause the fuel nozzle 100 to release fuel in an inappropriate situation, the magnetic sensor can be configured to send the position signal only when the detected magnetic field strength reaches or exceeds a preset minimum threshold. In some embodiments, this minimum threshold can be preset by the operator according to the actual usage environment, thereby ensuring that fuel is only allowed to flow out when the refueling hose 110 is correctly inserted into the fuel tank and reaches the predetermined position.

[0028] In some embodiments of this specification, by setting a magnet on the offset component or making the offset component itself a magnetic element, the magnetic sensor can reliably detect the axial displacement of the refueling pipe, thereby achieving non-contact and precise positioning judgment, improving the reliability and response speed of the refueling nozzle insertion positioning judgment, and thus improving operational safety.

[0029] In some embodiments, the refueling nozzle 100 also includes a support 140. For example, as... Figure 1A As shown, the bracket 140 is disposed on the outside of the refueling pipe 110 and surrounds the refueling pipe 110 in a ring shape, thereby enhancing the connection stability between the bracket 140 and the refueling pipe 110 and the reliability of the overall structure. In some embodiments, the bracket 140 is detachable, which facilitates the operator to adjust the position of the bracket 140 on the refueling pipe 110 according to the actual situation. For example, the bracket 140 can adopt a ring structure and be fixed to the refueling pipe 110 by screws or other fasteners, which facilitates the removal of fasteners when needed to separate the bracket 140 from the refueling pipe 110, thereby achieving a detachable connection method.

[0030] In some embodiments, the signal sensing component 120 may be mounted on the bracket 140. For example, as Figure 1A As shown, the signal sensing component 120 can be fixedly connected to the bracket 140 via screw holes on the bracket 140. In some embodiments, the signal sensing component 120 can be rotatably connected to the bracket 140 via screw holes on the bracket 140, so that the operator can adjust the position of the signal sensing component 120 relative to the oil outlet port or the offset component 130.

[0031] In some embodiments, the offset component 130 may be disposed on the support 140. For example, as Figure 1A As shown, the offset component 130 can be fixedly connected to the bracket 140 via screw holes on the bracket 140. In some embodiments, the offset component 130 can be rotatably connected to the bracket 140 via screw holes on the bracket 140, so that the operator can adjust the position of the offset component 130 relative to the oil outlet port or the signal sensing component 120.

[0032] It should be noted that, such as Figure 1A As shown, when both the offset component 130 and the signal sensing component 120 are mounted on the bracket 140, the offset component 130 should be arranged closer to the oil outlet port in the axial direction of the refueling pipe 110 to ensure that the signal sensing component 120 can be effectively triggered when the refueling pipe 110 is inserted into place.

[0033] In some embodiments, the positions of the signal sensing component 120 and / or the offset component 130 can be adjusted by the operator. It should be noted that, due to differences in the size of the fuel tank body and the depth of the fuel tank opening, the suitable position (i.e., the aforementioned preset position) reached by the refueling pipe 110 within the fuel tank also varies. Therefore, the operator can adjust the positions of the offset component 130 and / or the signal sensing component 120 according to the actual conditions of different fuel tanks to adapt to the needs of different fuel tanks. In some embodiments, by setting a bracket on the refueling pipe and mounting the signal sensing component and / or the offset component on the bracket, the operator can further facilitate the adjustment of their positions, enabling the refueling nozzle to detect the arrival of various fuel tanks by adjusting the position of the bracket, thereby improving the applicability of the refueling nozzle in this embodiment.

[0034] In some embodiments of this specification, by setting a bracket on the outside of the refueling pipe and mounting the signal sensing component and / or offset component on the bracket, the relevant components have a more stable fixed position and structural support, while facilitating installation and maintenance, thereby improving the overall structural reliability of the refueling nozzle and the feasibility of component arrangement.

[0035] In some embodiments, the refueling nozzle 100 further includes a housing structure 150. For example, as... Figure 1A As shown, the top of the cover structure 150 is provided with a perforation, through which the refueling pipe 110 can pass and be installed on the cover structure 150.

[0036] In some embodiments, the offset component 130 and the signal sensing component 120 may be located inside the cover structure 150 and covered by the cover structure 150 to protect the offset component 130 and the signal sensing component 120 from the influence of the external environment (e.g., smoke, dust, collision, static electricity, etc.), which can not only reduce safety hazards during refueling, but also extend the service life of the components.

[0037] In some embodiments, such as Figure 1A and Figure 1B As shown, the cover structure 150 is an incomplete sphere with a hollow interior, in which the offset component 130 and the signal sensing component 120 are both contained and completely covered.

[0038] In some embodiments, when a support 140 is provided on the refueling pipe 110, the support 140 is also completely covered by the cover structure 150 to provide further protection for the support 140 and the components mounted on it (e.g., offset component 130 and / or signal sensing component 120).

[0039] In some embodiments, the enclosure structure 150 may be made of waterproof material or have a certain level of protection to reduce the impact of external factors such as rain and dust on the offset component 130 and the signal sensing component 120, thereby further improving the reliability of the system.

[0040] In some embodiments, the cover structure 150 may be designed as a detachable structure, for example, connected to the refueling pipe 110 (or bracket 140) by means of a snap-fit, so that the staff can easily remove the cover structure 150 when maintaining or replacing the offset component 130 and the signal sensing component 120.

[0041] In some embodiments, the cover structure 150 may be made of transparent or partially transparent material so that staff can observe the movement of the offset component 130 without disassembling the cover, thereby improving maintenance convenience.

[0042] In some embodiments, the cover structure 150 may have buffer protrusions on its outer surface or be made of a resilient material to absorb impact forces in the event of a collision during refueling, thereby protecting the internal offset component 130 and signal sensing component 120.

[0043] In some embodiments of this specification, the enclosure structure provides overall coverage and protection for the offset component and the signal sensing component, preventing them from external physical contact, smoke, or impurities during refueling, thereby improving the safety and stability of the device and extending the service life of the relevant components.

[0044] In some embodiments, the offset component 130 can be an elastic element so that it can return to its initial position after being subjected to force. That is, the offset component 130 can be an element that can automatically return to its initial position after being offset by an external force.

[0045] In some embodiments, the offset component 130 can be an elastic element capable of reversible deformation, such as a metal elastic sheet or a composite material elastic sheet, achieving offset and reset through the bending deformation of the sheet. In some embodiments, the offset component 130 can be a flexible elastomer such as rubber or silicone, which undergoes compressive or tensile deformation after being subjected to force and recovers its initial shape based on the elasticity of the material itself after the external force is removed. In some embodiments, the offset component 130 can be a spring-type structure, achieving automatic reset after offset through the elastic potential energy of the spring.

[0046] In some embodiments, the offset assembly 130 may be a composite elastic structure composed of multiple elastic elements, such as springs and elastic sheets connected in parallel or in series, to make the offset process smoother and improve service life. In some embodiments, the elastic elements of the offset assembly 130 may be configured as annular, arc-shaped, or corrugated structures to adapt to the installation space outside the refueling pipe 110 and improve its adaptability.

[0047] In some embodiments of this specification, by setting the offset component as an elastic element, the offset action is reversible and repeatable, ensuring that a stable and reliable offset is generated each time the refueling nozzle is inserted into the fuel tank. This enables the signal sensing component to continuously and accurately detect the position status of the refueling nozzle, improving the reliability and service life of the detection. At the same time, it can avoid misjudgment caused by residual external force, improving the accuracy and reusability of the detection.

[0048] In some embodiments of this specification, by detecting the axial displacement of the offset component toward the signal sensing component, it is automatically determined whether the refueling pipe is inserted into the preset position of the fuel tank, ensuring that the refueling operation can only be safely carried out after the refueling nozzle is in place, preventing fuel leakage, and thus ensuring the safety of the entire refueling process.

[0049] Figure 2 These are exemplary structural diagrams of a refueling system according to some embodiments of this specification. In some embodiments, such as Figure 2 As shown, the refueling system 200 may include a refueling nozzle 100 and / or a control terminal 210, etc. The refueling nozzle 100 and the control terminal 210 are configured to communicate (e.g., to transmit wirelessly based on a wireless communication protocol).

[0050] In some embodiments, the refueling nozzle 100 can be used to refuel the target fuel tank X. In some embodiments, such as Figure 1A As shown, the refueling nozzle 100 may include a refueling pipe 110, an offset assembly 130, and / or a signal sensing assembly 120, etc.

[0051] The refueling hose 110 can be used to deliver fuel. For example, fuel can flow through the refueling hose 110 to a fuel tank that needs to be refueled (e.g., a vehicle's fuel tank, hereinafter referred to as the target).

[0052] In some embodiments, the refueling pipe 110 may include an inlet port and an outlet port. For example, one end of the refueling pipe 110 may be an inlet port, allowing fuel to flow into the refueling pipe 110 through the inlet port. As another example, the other end of the refueling pipe 110 may be an outlet port, allowing fuel to flow from the refueling pipe 110 to the fuel tank through the outlet port. In some embodiments, the inlet port of the refueling pipe 110 may be connected to a fuel storage device.

[0053] In some embodiments, the control terminal 210 can control whether fuel can enter the refueling pipe 110 of the refueling nozzle 100. For example, an inlet valve can be provided at the inlet port of the refueling pipe 110, allowing fuel to flow into the refueling pipe 110 only when the inlet valve is open. In some embodiments, the control terminal 210 can control the opening or closing of the inlet valve. For example, upon receiving a positioning signal, the control terminal 210 can open the inlet valve to allow fuel from external devices (e.g., fuel storage devices) to flow into the refueling pipe 110, thereby refueling the target fuel tank X, thus ensuring the controllability of the refueling process. Further explanation of the control terminal 210 and the positioning signal can be found in the following sections.

[0054] The signal sensing component 120 can be used to send and / or receive signals. For example, the signal sensing component 120 can send a fuel nozzle arrival signal to an external device (e.g., the control terminal 210 corresponding to the fuel nozzle 100) to notify the control terminal 210 that the fuel nozzle 100 has been inserted into a preset position in the fuel tank. Only after ensuring that the fuel nozzle 100 is inserted in place will the control terminal 210 control the fuel nozzle 100 to refuel (e.g., open the fuel inlet valve to allow fuel to flow in from the fuel inlet port), thereby ensuring the safety of the entire refueling process.

[0055] In some embodiments, such as Figure 1A As shown, the signal sensing component 120 can be disposed on the outside of the refueling pipe 110. For example, the signal sensing component 120 can be directly disposed on the surface of the refueling pipe 110 and fixedly connected to the refueling pipe 110.

[0056] The offset component 130 refers to a component capable of moving along the axial direction of the refueling pipe 110. In some embodiments, the offset component 130 may be disposed on the refueling pipe 110. For example, as... Figure 1AAs shown, the offset component 130 can be disposed along the axial direction of the refueling pipe 110, between the signal sensing component 120 and the fuel outlet port. When the refueling pipe 110 is inserted into the fuel tank to a preset position, the offset component 130 is displaced along the axial direction of the refueling pipe 110 towards the signal sensing component 120 by an external force acting on the fuel tank opening, thereby triggering the signal sensing component 120 to send a positioning signal. The positioning signal can be used to indicate that the refueling pipe 110 has been inserted into the preset position of the fuel tank. The preset position refers to the position where fuel will not spread or splash outside the target fuel tank X when the refueling nozzle 100 refuels the target fuel tank X. In some embodiments, the preset position can be set by the operator.

[0057] In some embodiments, the offset component 130 may be provided with a magnet 160 that moves synchronously with the offset component 130. For example, the surface of the offset component 130 and / or the interior of the offset component may be provided with a magnet 160 so that when the offset component 130 moves toward the signal sensing component 120, the magnet 160 can move synchronously with the offset component 130, thereby changing the magnetic field around the signal sensor (magnetic sensor) so that the magnetic sensor generates a corresponding signal.

[0058] In some embodiments, the offset component 130 may be a magnetic element. For example, the material of the offset component 130 may include at least a magnetic material, so that the offset component 130 itself is magnetic, thereby causing the magnetic field around the signal sensor (magnetic sensor) to generate a corresponding signal when the offset component 130 moves toward the signal sensing component 120.

[0059] In some embodiments, the signal sensing component 120 may include a magnetic sensor. A magnetic sensor is a sensor capable of converting changes in the surrounding magnetic field into an electrical signal output. For example, as the offset component 130 approaches the magnetic sensor, the magnetic sensor detects an increase in the surrounding magnetic field. The Hall effect sensor inside the magnetic sensor can generate a high-level signal (i.e., the aforementioned position signal) based on the increased magnetic field strength. Upon receiving this high-level signal, the control terminal 210 recognizes that the refueling hose 110 is in position and controls the fuel inlet valve to open, allowing fuel to flow out. In some embodiments, to prevent accidental contact of the offset component 130 that could cause the fuel nozzle 100 to release fuel in an inappropriate situation, the magnetic sensor can be configured to send the position signal only when the detected magnetic field strength reaches or exceeds a preset minimum threshold. In some embodiments, this minimum threshold can be preset by the operator according to the actual usage environment, thereby ensuring that fuel is only allowed to flow out when the refueling hose 110 is correctly inserted into the fuel tank and reaches the predetermined position.

[0060] In some embodiments of this specification, by providing a magnet 160 on the offset component 130 or making the offset component 130 itself a magnetic element, the magnetic sensor can reliably detect the axial displacement of the refueling pipe 110, thereby achieving non-contact and precise positioning judgment, improving the reliability and response speed of the refueling nozzle 100 insertion positioning judgment, and thus improving operational safety.

[0061] In some embodiments, the refueling nozzle 100 also includes a support 140. For example, as... Figure 1A As shown, the bracket 140 is disposed on the outside of the refueling pipe 110 and surrounds the refueling pipe 110 in a ring shape, thereby enhancing the connection stability between the bracket 140 and the refueling pipe 110 and the reliability of the overall structure. In some embodiments, the bracket 140 is detachable, which facilitates the operator to adjust the position of the bracket 140 on the refueling pipe 110 according to the actual situation. For example, the bracket 140 can adopt a ring structure and be fixed to the refueling pipe 110 by screws or other fasteners, which facilitates the removal of fasteners when needed to separate the bracket 140 from the refueling pipe 110, thereby achieving a detachable connection method.

[0062] In some embodiments, the signal sensing component 120 may be mounted on the bracket 140. For example, as Figure 1A As shown, the signal sensing component 120 can be fixedly connected to the bracket 140 via screw holes on the bracket 140. In some embodiments, the signal sensing component 120 can be rotatably connected to the bracket 140 via screw holes on the bracket 140, so that the operator can adjust the position of the signal sensing component 120 relative to the oil outlet port or the offset component 130.

[0063] In some embodiments, the offset component 130 may be disposed on the support 140. For example, as Figure 1A As shown, the offset component 130 can be fixedly connected to the bracket 140 via screw holes on the bracket 140. In some embodiments, the offset component 130 can be rotatably connected to the bracket 140 via screw holes on the bracket 140, so that the operator can adjust the position of the offset component 130 relative to the oil outlet port or the signal sensing component 120.

[0064] It should be noted that, such as Figure 1A As shown, when both the offset component 130 and the signal sensing component 120 are mounted on the bracket 140, the offset component 130 should be arranged closer to the oil outlet port in the axial direction of the refueling pipe 110 to ensure that the signal sensing component 120 can be effectively triggered when the refueling pipe 110 is inserted into place.

[0065] In some embodiments, the positions of the signal sensing component 120 and / or the offset component 130 can be adjusted by the operator. It should be noted that, due to differences in the tank body size and tank opening depth of different fuel tanks, the suitable position (i.e., the aforementioned preset position) reached by the refueling pipe 110 within the tank also varies. Therefore, the operator can adjust the positions of the offset component 130 and / or the signal sensing component 120 according to the actual conditions of different fuel tanks to adapt to different tank requirements. In some embodiments, by providing a bracket 140 on the refueling pipe 110 and mounting the signal sensing component 120 and / or the offset component 130 on the bracket 140, the operator can further facilitate position adjustment, enabling the refueling nozzle 100 to detect the position of various fuel tanks by adjusting the position of the bracket 140, thereby improving the applicability of the refueling nozzle 100 in this embodiment.

[0066] In some embodiments of this specification, by setting a bracket 140 on the outside of the refueling pipe 110 and mounting the signal sensing component 120 and / or offset component 130 on the bracket 140, the relevant components have a more stable fixed position and structural support, while facilitating installation and maintenance, thereby improving the overall structural reliability of the refueling nozzle 100 and the feasibility of component arrangement.

[0067] In some embodiments, the refueling nozzle 100 further includes a housing structure 150. For example, as... Figure 1A As shown, the top of the cover structure 150 is provided with a perforation, through which the refueling pipe 110 can pass and be installed on the cover structure 150.

[0068] In some embodiments, the offset component 130 and the signal sensing component 120 may be located inside the cover structure 150 and covered by the cover structure 150 to protect the offset component 130 and the signal sensing component 120 from the influence of the external environment (e.g., smoke, dust, collision, static electricity, etc.), which can not only reduce safety hazards during refueling, but also extend the service life of the components.

[0069] In some embodiments, the cover structure 150 is an incomplete sphere with a hollow interior, in which the offset component 130 and the signal sensing component 120 are both contained and completely covered.

[0070] In some embodiments, when a support 140 is provided on the refueling pipe 110, the support 140 is also completely covered by the cover structure 150 to provide further protection for the support 140 and the components mounted on it (e.g., offset component 130 and / or signal sensing component 120).

[0071] In some embodiments, the enclosure structure 150 may be made of waterproof material or have a certain level of protection to reduce the impact of external factors such as rain and dust on the offset component 130 and the signal sensing component 120, thereby further improving the reliability of the system.

[0072] In some embodiments, the cover structure 150 may be designed as a detachable structure, for example, connected to the refueling pipe 110 (or bracket 140) by means of a snap-fit, so that the staff can easily remove the cover structure 150 when maintaining or replacing the offset component 130 and the signal sensing component 120.

[0073] In some embodiments, the cover structure 150 may be made of transparent or partially transparent material so that staff can observe the movement of the offset component 130 without disassembling the cover, thereby improving maintenance convenience.

[0074] In some embodiments, the cover structure 150 may have buffer protrusions on its outer surface or be made of a resilient material to absorb impact forces in the event of a collision during refueling, thereby protecting the internal offset component 130 and signal sensing component 120.

[0075] In some embodiments of this specification, the cover structure 150 provides an overall cover and protection for the offset component 130 and the signal sensing component 120, preventing them from being disturbed by external physical contact, smoke, or impurities during the refueling process, thereby improving the safety and stability of the device and extending the service life of the relevant components.

[0076] In some embodiments, the offset component 130 can be an elastic element so that it can return to its initial position after being subjected to force. That is, the offset component 130 can be an element that can automatically return to its initial position after being offset by an external force.

[0077] In some embodiments, the offset component 130 can be an elastic element capable of reversible deformation, such as a metal elastic sheet or a composite material elastic sheet, achieving offset and reset through the bending deformation of the sheet. In some embodiments, the offset component 130 can be a flexible elastomer such as rubber or silicone, which undergoes compressive or tensile deformation after being subjected to force and recovers its initial shape based on the elasticity of the material itself after the external force is removed. In some embodiments, the offset component 130 can be a spring-type structure, achieving automatic reset after offset through the elastic potential energy of the spring.

[0078] In some embodiments, the offset assembly 130 may be a composite elastic structure composed of multiple elastic elements, such as springs and elastic sheets connected in parallel or in series, to make the offset process smoother and improve service life. In some embodiments, the elastic elements of the offset assembly 130 may be configured as annular, arc-shaped, or corrugated structures to adapt to the installation space outside the refueling pipe 110 and improve its adaptability.

[0079] In some embodiments of this specification, by setting the offset component 130 as an elastic element, the offset action is reversible and repeatable, ensuring that a stable and reliable offset is generated each time the fuel nozzle 100 is inserted into the fuel tank. This enables the signal sensing component 120 to continuously and accurately detect the position status of the fuel nozzle 100, improving the reliability and service life of the detection. At the same time, it can avoid misjudgment caused by residual external force, improving the accuracy and reusability of the detection.

[0080] In some embodiments of this specification, by detecting the axial displacement of the offset component 130 toward the signal sensing component 120, it is automatically determined whether the refueling pipe 110 is inserted into the preset position of the fuel tank, ensuring that the refueling operation can only be safely carried out after the refueling nozzle 100 is in place, which can prevent fuel leakage and thus ensure the safety of the entire refueling process.

[0081] The control terminal 210 can be used to control whether fuel is allowed to flow from the fuel nozzle 100. In some embodiments, the control terminal 210 can be configured to switch the fuel nozzle 100 to allow fuel to flow from the fuel pipe 110 of the fuel nozzle 100 in response to receiving an arrival signal sent by the fuel nozzle 100.

[0082] In some embodiments, the control terminal 210 may include a wireless radio frequency board, which is used to receive wireless signals (e.g., a arrival signal sent by the fuel nozzle 100) to obtain real-time information of the fuel nozzle 100 in a timely manner.

[0083] In some embodiments of this specification, the control terminal receives the position signal of the refueling nozzle and controls the fuel flow to achieve automatic refueling safety control after the refueling hose is inserted into the correct position, preventing fuel leakage when it is not inserted into the correct position.

[0084] Furthermore, certain features, structures, or characteristics in one or more embodiments of this specification may be appropriately combined.

[0085] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of this specification are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0086] If there is any inconsistency or conflict between the descriptions, definitions, and / or terms used in the materials referenced in this specification and the content described in this specification, the descriptions, definitions, and / or terms used in this specification shall prevail.

Claims

1. A refueling nozzle, characterized in that, The refueling nozzle includes: A refueling hose, wherein the refueling hose is provided with a refueling port; A signal sensing component is disposed on the outside of the refueling pipe; An offset component, which is movable along the axial direction of the refueling pipe and is disposed along the axial direction of the refueling pipe, between the signal sensing component and the oil outlet port; The signal sensing component is configured to send a position signal when the offset component is displaced along the axial direction of the refueling pipe toward the signal sensing component. The position signal is used to indicate that the refueling pipe has been inserted into a preset position in the fuel tank.

2. The refueling nozzle according to claim 1, characterized in that, The signal sensing component includes a magnetic sensor; The offset component is provided with a magnet that moves synchronously with the offset component, or the offset component is a magnetic element.

3. The refueling nozzle according to claim 1, characterized in that, The refueling nozzle also includes a bracket disposed on the outside of the refueling pipe, and the signal sensing component and / or the offset component are disposed on the bracket.

4. The refueling nozzle according to claim 1, characterized in that, The refueling nozzle also includes a cover structure, the refueling pipe passes through the cover structure, and the offset component and the signal sensing component are covered by the cover structure.

5. The refueling nozzle according to any one of claims 1-4, characterized in that, The offset component is an elastic element so that it can return to its initial position after being subjected to force.

6. A refueling system, characterized in that, The refueling system includes: The refueling nozzle as described in claim 1; A control terminal configured to: in response to receiving an arrival signal from the fuel nozzle, switch the fuel nozzle to allow fuel to flow from the fuel nozzle's filling pipe.

7. The refueling system according to claim 6, characterized in that, The signal sensing component includes a magnetic sensor; The offset component is provided with a magnet that moves synchronously with the offset component, or the offset component is a magnetic element.

8. The refueling system according to claim 6, characterized in that, The refueling nozzle also includes a bracket disposed on the outside of the refueling pipe, and the signal sensing component and / or the offset component are disposed on the bracket.

9. The refueling system according to claim 6, characterized in that, The refueling nozzle also includes a cover structure, the refueling pipe passes through the cover structure, and the offset component and the signal sensing component are covered by the cover structure.

10. The refueling system according to any one of claims 6-9, characterized in that, The offset component is an elastic element so that it can return to its initial position after being subjected to force.

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