Oil filling tank

Abstract

The utility model provides a refueling tank which comprises a tank body, a fuel tank body, a fuel tank cover, a fuel tank cover and a fuel tank cover. The tank body comprises a bottom and a top which are oppositely arranged; the top is provided with a fuel inlet and a fuel outlet; the oil outlet pipe comprises a first pipe body and a second pipe body which are connected with each other, the first pipe body is arranged in the tank body and extends in the height direction of the tank body, and the second pipe body is communicated with the oil outlet; the oil pump is arranged in the first pipe body; the first pipe body comprises a first end face far away from the bottom, and the bottom of the oil inlet is lower than the first end face in the height direction of the tank body. According to the oil filling tank, the technical problem that oil liquid is prone to overflowing from the oil outlet in the oil filling process can be solved.

Description

Technical Field

[0001] This application relates to the field of fuel tanks, and in particular to a refueling tank. Background Art

[0002] The use of refueling tanks is very common in industry and daily life, especially in occasions where mobile refueling is required. The refueling tank first fills with oil from a gas station or an oil barrel, etc., and then after the refueling tank is transferred to other places, the refueling tank can refuel the corresponding equipment. For example, the refueling tank first fills with oil from a gas station and then is transferred near equipment such as a lawn mower, and the refueling tank can refuel equipment such as a lawn mower. Among them, the refueling tank is generally provided with an oil pump, and the oil pump can pump the oil in the refueling tank to the outside to facilitate the output of the oil. However, in the related art, during the refueling process, the oil is likely to overflow from the oil outlet. Summary of the Utility Model

[0003] An embodiment of the present utility model provides a refueling tank, which can improve the technical problem that the oil is likely to overflow from the oil outlet during the refueling process.

[0004] In a first aspect, an embodiment of the present utility model provides a refueling tank, which includes:

[0005] A box body, including a bottom and a top that are oppositely arranged, and the top is provided with an oil inlet and an oil outlet;

[0006] An oil outlet pipe, including a first pipe body and a second pipe body that are connected to each other, the first pipe body is arranged in the box body and extends along the height direction of the box body, and the second pipe body is communicated with the oil outlet;

[0007] An oil pump, arranged in the first pipe body;

[0008] Wherein, the first pipe body includes a first end surface far from the bottom, and along the height direction of the box body, the bottom of the oil inlet is lower than the first end surface.

[0009] Optionally, the top is provided with an oil inlet groove, and the oil inlet is arranged at the bottom of the oil inlet groove.

[0010] Optionally, the refueling tank further includes: an oil gun, communicated with the oil outlet; the oil pump is arranged close to the bottom, and when the oil gun is closed, the air is sealed in the oil outlet pipe.

[0011] Optionally, the top is provided with a card slot, and the oil gun can be inserted into the card slot.

[0012] Optionally, the bottom includes a bottom plate, the bottom plate is provided with an oil guide groove, and at least part of the oil pump is arranged in the oil guide groove.

[0013] Optionally, the oil guide groove includes a limiting section, the oil pump is arranged in the limiting section, the limiting section includes a limiting side wall, and the limiting side wall is arranged around the oil pump and limits the oil pump.

[0014] Optionally, the oil outlet pipe further includes a sleeve tube, which is connected to a side of the second tube body facing the first tube body, is disposed in the oil outlet and sleeved on the first tube body, and is sealed and connected to the box body.

[0015] Optionally, the second tube is disposed outside the box and extends along the length direction of the box;

[0016] The second tube body is provided with a first opening, a second opening and a third opening, the first opening is connected to the first tube body, the second opening and the third opening are arranged opposite to each other, and the second opening is used for discharging oil;

[0017] The fuel tank also includes a seal, a circuit board and a wire. The seal is sealed and connected to the third opening. The wire passes through the seal and is sealed and connected to the seal. One end of the wire is electrically connected to the circuit board, and the other end of the wire is electrically connected to the oil pump.

[0018] Optionally, the sealing member is provided with a wiring through hole, and the wire is passed through the wiring through hole and is interference-fitted with the wiring through hole;

[0019] The oil outlet pipe further includes an exhaust pipe body, which is connected to the second pipe body and communicates with the second pipe body;

[0020] The refueling tank further comprises an exhaust valve, and the exhaust valve is mounted on an end of the exhaust pipe body away from the second pipe body;

[0021] The sealing member is further provided with an exhaust channel, one end of which is connected to the second tube body, and the other end of which is connected to the exhaust tube body.

[0022] Optionally, the wiring through hole penetrates the sealing member along the extension direction of the second tube body, and the wiring through hole is spaced apart from the exhaust channel;

[0023] The exhaust pipe body is connected to a side of the second pipe body away from the first pipe body;

[0024] The exhaust passage includes a first exhaust section and a second exhaust section that are connected to each other. The first exhaust section is extended along the width direction of the box body and is connected to the second pipe body. The second exhaust section is extended along the height direction of the box body and is connected to the exhaust pipe body.

[0025] In the embodiment of the present application, an oil inlet and an oil outlet are provided at the top of the box body; the oil outlet pipe in the box body includes a first pipe body and a second pipe body connected to each other. The first pipe body extends along the height direction of the box body, and the second pipe body is connected between the first pipe body and the oil outlet; the oil pump is arranged in the first pipe body. Among them, the first pipe body includes a first end face away from the bottom, the box body includes a surrounding wall around the oil inlet, and the surrounding wall includes a second end face close to the bottom. Along the height direction of the box body, the second end face is lower than the first end face. When adding oil to the box body, the oil will first reach the second end face, that is, the bottom end of the oil inlet. At this time, the oil in the box body has reached the maximum safe storage height. If more oil is added continuously, the oil will overflow from the oil inlet. Therefore, it is ensured that during the process of adding oil, the oil height in the box body will not reach the first end face, which can prevent the oil from flowing back into the second pipe body, thus avoiding the oil from overflowing from the oil outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of the fuel tank provided by the embodiment of the present application.

[0028] Figure 2 For Figure 1 It is a schematic structural diagram of the fuel tank shown from another angle.

[0029] Figure 3 For Figure 1 It is the first cross-sectional view of the fuel tank shown.

[0030] Figure 4 For Figure 1 It is the second cross-sectional view of the fuel tank shown.

[0031] Figure 5 For Figure 1 It is a schematic structural diagram of the fuel tank shown from another angle.

[0032] Figure 6 For Figure 1 It is the third cross-sectional view of the fuel tank shown.

[0033] Figure 7 For Figure 3 It is a partial enlarged view of part C in the fuel tank shown.

[0034] Figure 8 For Figure 1 It is a schematic diagram of the seal in the fuel tank shown.

[0035] Figure 9 The Figure 1 schematic diagram of another angle of the seal in the fuel tank shown in the figure.

[0036] Figure 10 The Figure 9 cross-sectional view of a partial structure of the fuel tank shown in the figure along the B-B direction.

[0037] Description of the reference numerals in the drawings:

[0038] 10. Fuel tank, 100. Tank body, 110. Inlet, 111. Enclosing wall, 120. Outlet, 130. Bottom, 131. Bottom plate, 132. Oil guiding groove, 133. Limiting section, 140. Middle part, 150. Top, 151. Top plate, L1. First end face, L2. Second end face, 152. Card slot, 156. Inlet groove, 153. Installation groove, 155. Handle, 160. Body, 161. Button groove, 170. Pipe, 171. Opening, 180. Sealing ring, 190. Buckling position;

[0039] 200. Outlet pipe, 210. First pipe body, 211. First part, 212. Second part, 220. Second pipe body, 221. First opening, 222. Second opening, 223. Third opening, 230. Exhaust pipe body, 240. Exhaust valve, 250. Sleeve pipe;

[0040] 300. Oil pump, 500. Oil gun, 600. Pipeline, 700. Seal, 710. Wiring through hole, 720. Exhaust passage, 721. First exhaust section, 722. Second exhaust section, 810. Circuit board, 820. Wire, 900. Electronic box, 910. Base, 920. Upper cover. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present invention. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise stated, the orientation words such as "upper" and "lower" usually refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the drawings; and "inner" and "outer" are relative to the contour of the device.

[0042] An embodiment of the present application provides a fuel tank, which will be described below with reference to the accompanying drawings. Please refer toFigure 1 , Figure 2 and Figure 3 , Figure 1 is a schematic structural view of the fuel tank provided by the embodiment of the present application, Figure 2 is Figure 1 a schematic structural view of the fuel tank shown from another angle, Figure 3 is Figure 1 the first cross-sectional view of the fuel tank shown.

[0043] The embodiment of the present application provides a fuel tank 10, and the fuel tank 10 includes a tank body 100, an oil outlet pipe 200, and an oil pump 300. The tank body 100 serves as the main structure for containing oil. An accommodation space is provided inside the tank body 100, and the accommodation space is used for storing oil. The tank body 100 includes a bottom 130, a middle part 140, and a top 150, and the bottom 130 and the top 150 are oppositely arranged. Exemplarily, the tank body 100 can be made of plastic, metal, alloy, or other materials. An oil inlet 110 and an oil outlet 120 are provided at the top 150 of the tank body 100. The accommodation space of the tank body 100 is communicated with the oil inlet 110 and the oil outlet 120. The fuel tank 10 can add oil through the oil inlet 110 at the top 150 and output the oil through the oil outlet 120 at the top 150 to other devices.

[0044] The oil outlet pipe 200 includes a first pipe body 210 and a second pipe body 220 that are connected to each other. The first pipe body 210 is arranged inside the tank body 100 and extends along the height direction of the tank body 100. The second pipe body 220 is communicated with the oil outlet 120.

[0045] The oil pump 300 is arranged inside the first pipe body 210. The main function of the oil pump 300 is to generate sufficient pressure so that the oil can flow smoothly from inside the tank body 100 to the oil outlet 120, so as to leave the fuel tank 10 and enter other devices. Specifically, in the fuel tank 10, the oil is stored in the accommodation space of the tank body 100. When it is necessary to supply oil to an external device, the oil pump 300 is started to generate pressure, and the oil is pushed through the first pipe body 210 and the second pipe body 220 into the external device.

[0046] Among them, the first pipe body 210 includes a first end face L1 away from the bottom 130. Along the height direction of the box body 100, the bottom of the oil inlet is lower than the first end face L1. Therefore, when adding oil liquid into the box body 100, the oil liquid will first reach the bottom of the oil inlet. At this time, the oil liquid inside the box body 100 has reached the maximum safe storage height. If more oil liquid is added continuously, the oil liquid will overflow from the oil inlet 110. Therefore, it is ensured that during the process of adding oil liquid, the height of the oil liquid in the box body 100 will not reach the first end face L1, which can prevent the oil liquid from flowing back into the second pipe body 220, thus avoiding the oil liquid from overflowing from the oil outlet 120. In this embodiment, by designing that the bottom of the oil inlet is higher than the first end face L1, the storage height of the oil liquid can be effectively controlled, the oil liquid overflow can be prevented, and the safety during the oil adding process is ensured.

[0047] In some examples, the box body 100 includes a surrounding wall 111 around the oil inlet 110. The surrounding wall 111 includes a second end face L2 away from the bottom 130, and the second end face L2 is lower than the first end face L1. Specifically, the top 150 of the box body 100 includes a top plate 151 and the upper component of the side wall of the box body 100. The top plate 151 is located at the highest position of the box body 100. The oil inlet 110 can be arranged on the surrounding top plate 151. The surrounding wall 111 surrounds the oil inlet 110 and extends along the height direction of the box body 100 to form a protection and enclosure structure for the oil inlet 110. The outer surface of the surrounding wall 111 is provided with threads and can be used to screw on a lid to seal the fuel tank 10. Among them, along the height direction of the box body 100, the second end face L2 is lower than the first end face L1. Therefore, when adding oil liquid into the box body 100, the oil liquid will first reach the second end face L2, that is, first reach the bottom end of the oil inlet 110. At this time, the oil liquid inside the box body 100 has reached the maximum safe storage height. If more oil liquid is added continuously, the oil liquid will overflow from the oil inlet 110. Therefore, it is ensured that during the process of adding oil liquid, the height of the oil liquid in the box body 100 will not reach the first end face L1, which can prevent the oil liquid from flowing back into the second pipe body 220, thus avoiding the oil liquid from overflowing from the oil outlet 120. In this embodiment, by designing that the second end face L2 is lower than the first end face L1, the storage height of the oil liquid can be effectively controlled, the oil liquid overflow can be prevented, and the safety during the oil adding process is ensured. In some examples, the box body 100 can also include an anti-loosening anti-disengagement structure that cooperates with the lid, and the anti-disengagement structure can be used to limit the rotation of the lid.

[0048] In some embodiments, the oil outlet 120 is provided at the top 150 of the tank body 100. For example, it can be provided at the upper part of the side wall of the tank body 100 to avoid occupying the space of the surrounding top plate 151. The first pipe body 210 is arranged along the height direction of the tank body 100. The second pipe body 220 is connected between the first pipe body 210 and the oil outlet 120. The second pipe body 220 is arranged close to the top 150, which can effectively prevent the oil in the fuel tank 10 from freely entering the second pipe body 220, thereby preventing the oil from leaking from the oil outlet 120. It should be noted that the position of the oil outlet 120 can be set as required. For example, it can also be provided on the surrounding top plate 151 of the tank body 100, and this embodiment does not limit this.

[0049] In some embodiments, the fuel tank 10 further includes an oil gun 500, and the oil gun 500 is communicated with the oil outlet 120. The oil pump 300 is arranged close to the bottom 130. When the oil gun 500 is closed, the air is enclosed in the oil outlet pipe 200. Among them, the oil gun 500 is communicated with the oil outlet 120. After the oil is output from the oil outlet 120, the oil is transported to the equipment that needs to be refueled through the oil gun 500. For example, the oil is sprayed into a container such as a car fuel tank through the nozzle of the oil gun 500. The oil pump 300 is arranged close to the bottom 130 of the tank body 100. Such a layout helps the oil pump 300 to more effectively extract the oil from the bottom 130 of the tank body 100 and improve the efficiency of oil extraction.

[0050] Among them, when the oil gun 500 is closed, the pipeline design of the oil pump 300 is defaulted to a closed state. That is, the pipeline from the oil pump 300 to the oil outlet end of the oil gun 500 is in a closed state, and the air is trapped inside. There is a balance between this air pressure and the external environmental pressure, ensuring that when the oil gun 500 is in a non-use state, the oil will not flow in the oil outlet pipe 200 and will not enter the first pipe body 210 and the second pipe body 220, preventing the oil from leaking. Under the combined action of the closed pipeline design of the oil pump 300 and the internal air pressure, the leakage of oil in the non-refueling state is prevented, and the safety of the fuel tank 10 is improved. When the oil gun 500 is activated, the closed pipeline state is conducted, allowing the oil to flow to the oil outlet pipe 200 and be output, so that the oil can be transported to external equipment.

[0051] In some embodiments, please refer to Figure 4 , Figure 4 for Figure 1 the second sectional view of the fuel tank shown. A card slot 152 is provided at the top 150, and the oil gun 500 can be inserted into the card slot 152. The card slot 152 provides a position for fixing the oil gun 500, which is convenient for placing the oil gun 500 on the tank body 100. It can not only facilitate the storage of the oil gun 500, but also protect the oil gun 500 from being damaged accidentally due to random placement.

[0052] In some embodiments, the box body 100 includes a main body 160 and a conduit 170. The main body 160 is provided with an opening 171, and the conduit 170 is sealingly installed in the opening 171. The conduit 170 is provided with a clamping groove 152. The conduit 170 and the main body 160 can be detachably connected, such as by snap connection, plug connection or clamping connection. Different types of conduits 170 can be selected according to different oil guns 500, such as conduits 170 with different depths and different diameters, to match the corresponding oil guns 500, making the storage of the oil guns 500 more convenient.

[0053] In some embodiments, the fuel tank 10 further includes a sealing ring 180. The sealing ring 180 is disposed between the conduit 170 and the main body 160 to enable the conduit 170 to be sealingly installed in the opening 171. A sealing ring 180 can also be provided between the conduit 170 and the main body 160. The sealing ring 180 can ensure the sealing of the connection between the conduit 170 and the main body 160, thereby realizing the sealed connection between the conduit 170 and the main body 160, which can not only prevent the oil from leaking from these connections, but also prevent external pollutants from entering the fuel tank 10 and protect the oil from being polluted.

[0054] In some embodiments, the fuel tank 10 further includes a pipeline 600. The pipeline 600 is connected to the oil gun 500 and communicates with the oil outlet 120. At least one clamping position 190 is provided on the outer side wall of the box body 100, and the clamping position 190 can clamp the pipeline 600. Among them, the fuel tank 10 includes the pipeline 600, so as to ensure that the oil can be smoothly transported from the oil outlet 120 to the oil gun 500 through the pipeline 600, so that the oil gun can transport the oil to external equipment. The pipeline 600 can be clamped at the clamping position 190 on the outer side wall of the box body 100, so as to better accommodate the pipeline 600 and make the overall structure of the fuel tank 10 compact and effective.

[0055] Exemplarily, the number and position of the clamping positions 190 can be flexibly set according to needs. When the pipeline 600 includes a longer oil pipe, a plurality of clamping positions 190 can be sequentially provided on the outer side wall of the box body 100, such as 2 clamping positions 190, 3 clamping positions 190, 4 clamping positions 190 or more clamping positions 190. The pipeline 600 can be clamped in one or more of the plurality of clamping positions 190 according to needs.

[0056] Exemplarily, one or more clamping positions 190 can be formed by outward protrusion of the side wall of the box body 100. For example, the side wall of the box body 100 forms the clamping position 190 by means of injection molding, blow molding, thermoplastic molding or stamping. In another example, the clamping position 190 can also be a snap groove, and the snap groove matches the size of the pipeline 600, so that the pipeline 600 can be clamped in the snap groove.

[0057] In some embodiments, the box body 100 may further include a sealing cover. When the pipeline 600 is not installed, the sealing cover can be used to seal the oil outlet 120. Exemplarily, the oil outlet pipe 200 is connected to the oil outlet 120 and is partially disposed outside the box body 100, that is, the second pipe body 220 is connected to the pipeline 600 so that the pipeline 600 is communicated with the oil outlet 120 through the oil outlet pipe 200. When the oil outlet pipe 200 is not connected to the second pipe body 220, the sealing cover can seal the second pipe body 220. The sealing cover can be disposed on the box body 100. For example, the sealing cover can be connected to the second pipe body 220 through a connecting member, which is not easy to lose the sealing cover and is convenient for the sealing cover to seal the second pipe body 220. In some other examples, a clamping groove is provided on the box body 100, and the sealing cover is clamped in the clamping groove.

[0058] In some embodiments, please refer to Figure 5 , Figure 5 is Figure 1 a schematic structural view of another angle of the fuel tank shown. A handle 155 is provided at the top 150, and a handle groove 161 is provided at the bottom 130. During the use process, the user can grasp the fuel tank 10 from both ends through the handle 155 at the top 150 and the handle groove 161 at the bottom 130, so as to ensure effective grasping and pouring of the fuel tank 10 during the use process.

[0059] In some embodiments, please refer to Figure 6 , Figure 6 is Figure 1 the third cross-sectional view of the fuel tank shown. The bottom 130 includes a bottom plate 131, and an oil guiding groove 132 is provided on the bottom plate 131. The oil pump 300 is at least partially disposed in the oil guiding groove 132. The bottom of the oil guiding groove 132 is the lowest. Placing the oil pump 300 in the oil guiding groove 132 helps the oil pump 300 to extract oil liquid at the lowest position in the fuel tank 10, ensuring that the oil liquid can be effectively extracted by the oil pump 300, effectively reducing the residual amount of the oil liquid in the fuel tank 10, and improving the utilization rate of the oil liquid. Exemplarily, the oil guiding groove 132 is provided around the entire circumference of the bottom plate 131.

[0060] In some embodiments, the oil guiding groove 132 includes a limiting section 133, and the oil pump 300 is disposed in the limiting section 133. The limiting section 133 includes limiting side walls, and the limiting side walls are arranged around the oil pump 300 and limit the oil pump 300. The limiting section 133 includes limiting side walls, and these side walls are arranged around the oil pump 300. The function of the limiting side walls is to prevent the oil pump 300 from moving or shifting in the fuel tank 10 and ensure that the oil pump 300 remains stable when extracting oil liquid.

[0061] In some embodiments, the first pipe body 210 is a rigid pipe. The oil pump 300 is clamped to one end of the first pipe body 210 close to the bottom plate 131, and at least one of the first pipe body 210 and the oil pump 300 abuts against the bottom plate 131. The first pipe body 210 being a rigid pipe can maintain its shape and structural stability. The oil pump 300 is clamped on the first pipe body 210, and the installation method is simple and convenient. At least one of the oil pump 300 and the first pipe body 210 abuts against the bottom plate 131, which helps to keep the oil pump 300 stable during the refueling process and reduce the movement caused by vibration or oil flow. Exemplarily, when the first pipe body 210 abuts against the bottom plate 131, the first pipe body 210 may be provided with a channel for the oil to flow through.

[0062] In some embodiments, the oil outlet pipe 200 further includes a sleeve pipe 250. The sleeve pipe 250 is connected to the side of the second pipe body 220 facing the first pipe body 210. The sleeve pipe 250 is disposed in the oil outlet 120 and sleeved on the first pipe body 210, and the sleeve pipe 250 is hermetically connected to the box body 100. The sleeve pipe 250 is hermetically installed in the oil outlet 120, which can seal the oil outlet 120 of the box body 100 without affecting the connection between the second pipe body 220 and the first pipe body 210. In some examples, a sealing ring or sealant may be provided between the sleeve pipe 250 and the box body 100 for sealing.

[0063] In some embodiments, the second pipe body 220 is disposed outside the box body 100 and extends along the length direction of the box body 100. The oil outlet pipe 200 mainly includes the first pipe body 210 disposed along the height direction of the box body 100 and the second pipe body 220 disposed along the length direction of the box body 100. It can also be understood that the first pipe body 210 facilitates lifting the oil in the box body 100 to a predetermined height, and the second pipe body 220 facilitates outputting the oil. One end of the second pipe body 220 can be used as a connection port to be quickly connected to the pipeline 600, and the connection port can be a screwed port or other forms of ports.

[0064] In some embodiments, the top 150 is provided with an oil inlet groove 156, and the oil inlet 110 is disposed at the bottom of the oil inlet groove 156, so that the oil inlet 110 is disposed at a lower position. In some examples, the oil inlet groove 156 can be disposed at the edge position of the top 150, and the groove side wall of the oil inlet groove 156 can have a groove side wall in only one direction. In some other examples, the oil inlet groove 156 can be disposed at the middle position of the top 150, and the groove side wall of the oil inlet groove 156 can have groove side walls in four directions.

[0065] In some embodiments, please refer to Figure 7 , Figure 7 For Figure 3Partial enlarged view of part C in the fuel tank shown. The second tube body 220 is provided with a first opening 221, a second opening 222 and a third opening 223. The first opening 221 communicates with the first tube body 210. The second opening 222 and the third opening 223 are oppositely arranged, and the second opening 222 is used for oil outlet. The fuel tank 10 further includes a seal 700, a circuit board 810 and a wire 820. The seal 700 is sealingly connected to the third opening 223. The wire 820 passes through the seal 700 and is sealingly connected to the seal 700. One end of the wire 820 is electrically connected to the circuit board 810, and the other end of the wire 820 is electrically connected to the oil pump 300. Among them, the second tube body 220 is provided with a first opening 221, a second opening 222 and a third opening 223. The first opening 221 is connected to the first tube body 210 to convey the oil fluid from the inside of the tank body 100 to the second tube body 220. The second opening 222 is connected to the oil outlet 120 to ensure that the oil fluid can be smoothly output from the second tube body 220 to the fuel tank 10. The seal 700 is installed at the third opening 223 to ensure that when the wire 820 passes through the third opening 223 and penetrates the second tube body 220, the sealing performance of the second tube body 220 will not be affected and oil leakage is prevented. The wire 820 is connected to the circuit board 810 and the oil pump 300 through the third opening 223, so that the oil pump 300 can be controlled by the circuit board 810, including starting, stopping and speed adjustment, etc.

[0066] In some embodiments, please refer to Figure 8 , Figure 8 is Figure 1 Schematic diagram of the seal in the fuel tank shown. The seal 700 is provided with a wire passing through hole 710, and the wire 820 passes through the wire passing through hole 710 and has an interference fit with the wire passing through hole 710. Among them, the wire passing through hole 710 provides a channel inside the seal 700 to allow the wire 820 to pass through the seal 700 and connect the oil pump 300 and the circuit board 810. The interference fit between the wire 820 and the wire passing through hole 710 makes the wire 820 be tightly fixed in the through hole, which helps to maintain the stability of the wire 820 and prevent it from loosening during the use of the fuel tank 10. Moreover, the interference fit also helps to maintain the sealing performance of the seal 700, and even if the wire passes through, it can prevent oil leakage or external contaminants from entering.

[0067] In some embodiments, the top 150 is provided with an installation groove 153. The bottom of the installation groove 153 is provided with an oil outlet 120. The bottom of the installation groove 153 is provided with a receiving groove. A part of the second tube body 220 is arranged in the receiving groove, which is convenient for installing the second tube body 220, can save space and can better fix the second tube body.

[0068] In some embodiments, the fuel tank 10 further includes an electronic box 900. The electronic box includes a base 910 and an upper cover 920. The base 910 is installed in the installation groove 153, and the upper cover 920 covers the base 910. The base 910 is formed with a second pipe body 220. The integration of the second pipe body 220 into the base 910 of the electronic box 900 results in fewer structural components and a more concise installation.

[0069] In some embodiments, the circuit board 810 is disposed on a side of the second pipe body 220 facing away from the first pipe body 210 and is located between the base 910 and the upper cover 920. The space between the base 910 and the upper cover 920 facilitates the installation of electronic components such as the circuit board 810. Moreover, since the circuit board 810 is disposed above the base 910, it is convenient to connect the wires passing through the seal 700 in the base 910.

[0070] In some examples, electronic components such as a battery and a keypad can also be installed in the electronic box 900.

[0071] In some embodiments, the first pipe body 210 includes a first part 211 and a second part 212 that are detachably connected. The first part 211 is fixedly connected to the second pipe body 220, and the second part 212 is sealingly connected to the first part 211. The detachable connection between the first part 211 and the second part 212 facilitates the formation of a relatively long first pipe body 210. Moreover, the fixed connection between the first part 211 and the second pipe body 220 simplifies the connection between the first part 211 and the second pipe body 220. For example, the first part 211 and the second pipe body 220 can be integrally formed, heat-melted, or fixed by other means. In some examples, the first part 211 and the second part 212 can be sealingly connected through a seal.

[0072] In some embodiments, the fuel outlet pipe 200 further includes an exhaust pipe body 230. The exhaust pipe body 230 is connected to the second pipe body 220 and is in communication with the second pipe body 220. The fuel tank 10 further includes an exhaust valve 240. The exhaust valve 240 is installed at one end of the exhaust pipe body 230 remote from the second pipe body 220. The seal 700 is further provided with an exhaust passage 720. One end of the exhaust passage 720 communicates with the second pipe body 220, and the other end of the exhaust passage 720 communicates with the exhaust pipe body 230.

[0073] The exhaust pipe body 230 is connected to the second pipe body 220 and communicates therewith, so that the air in the second pipe body 220 can be exhausted during the refueling or oil flow process. The exhaust valve 240 can control the gas flow between the inside of the refueling tank 10 and the exhaust pipe body 230, and can open or close the exhaust channel 720, which helps to maintain the pressure balance inside the refueling tank 10. The exhaust channel 720 is opened in the sealing member 700, providing an exhaust path from the second pipe body 220 to the exhaust pipe body 230, so that the gas accumulated in the second pipe body 220 can be guided and discharged to the exhaust pipe body 230.

[0074] In some embodiments, please combine Figure 9 and Figure 10 , Figure 9 for Figure 1 A schematic diagram of the seal in the fuel tank from another angle. Figure 10 for Figure 9 The cross-sectional view of the partial structure of the refueling tank along the BB direction is shown. The wiring through hole 710 penetrates the sealing member 700 along the extension direction of the second tube body 220, and the wiring through hole 710 is arranged at intervals from the exhaust channel 720; the exhaust tube body 230 is connected to the side of the second tube body 220 away from the first tube body 210; the exhaust channel 720 includes a first exhaust section 721 and a second exhaust section 722 which are connected to each other, the first exhaust section 721 is extended along the width direction of the box body 100 and is connected to the second tube body 220, and the second exhaust section 722 is extended along the height direction of the box body 100 and is connected to the exhaust tube body 230.

[0075] In this embodiment, the wiring through hole 710 and the exhaust channel 720 are integrated on a sealing member 700, which can simplify the design and manufacture of the fuel tank 10. In addition, the wiring through hole 710 passes through the sealing member 700 along the extension direction of the second tube body 220 and is spaced apart from the exhaust channel 720. This separation helps to maintain the independence of the electrical circuit and the exhaust path and reduce potential interference. The first exhaust section 721 extends along the width direction of the box body 100 and is connected to the second tube body 220, which helps to provide an exhaust path in the width direction of the fuel tank 10. The second exhaust section 722 extends along the height direction of the box body 100 and is connected to the exhaust pipe body 230, allowing the gas to flow in the height direction of the fuel tank 10 and finally be discharged through the exhaust pipe body 230. By arranging the exhaust sections that are connected to each other in different directions, more effective exhaust can be achieved.

[0076] The above has introduced the embodiments of the present utility model in detail. Specific examples are used herein to expound the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those skilled in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A fuel tank, characterized in that, include: The box body comprises a bottom and a top which are arranged opposite to each other, and the top is provided with an oil inlet and an oil outlet; An oil outlet pipe, comprising a first tube body and a second tube body connected to each other, wherein the first tube body is arranged in the box body and extends along the height direction of the box body, and the second tube body is communicated with the oil outlet; An oil pump, disposed in the first tube body; Wherein, the first tube body comprises a first end surface away from the bottom, and along the height direction of the box body, the bottom of the oil inlet is lower than the first end surface.

2. The fuel tank according to claim 1, wherein The top is provided with an oil inlet groove. The oil inlet is arranged at the bottom of the oil inlet groove.

3. The fuel tank according to claim 1, wherein, The fuel tank also includes: An oil gun, connected to the oil outlet; The oil pump is arranged close to the bottom, and when the oil gun is closed, air is enclosed in the oil outlet pipe.

4. The fuel tank according to claim 3, characterized in that, The top is provided with a slot, and the oil gun can be inserted into the slot.

5. The fuel tank according to claim 1, wherein, The bottom portion comprises a bottom plate, the bottom plate is provided with an oil guide groove, and the oil pump is at least partially arranged in the oil guide groove.

6. The fuel tank according to claim 5, characterized in that, The oil guide groove comprises a limiting section, the oil pump is arranged in the limiting section, the limiting section comprises a limiting side wall, and the limiting side wall is arranged around the oil pump and limits the oil pump.

7. The fuel tank according to claim 1, wherein The oil outlet pipe also includes a sleeve pipe, which is connected to the side of the second tube body facing the first tube body, is arranged in the oil outlet, and is sleeved on the first tube body, and is sealed and connected to the box body.

8. The fuel tank according to claim 7, characterized in that, The second tube is disposed outside the box and extends along the length direction of the box; The second tube body is provided with a first opening, a second opening and a third opening, the first opening is connected to the first tube body, the second opening and the third opening are arranged opposite to each other, and the second opening is used for discharging oil; The fuel tank also includes a seal, a circuit board and a wire. The seal is sealed and connected to the third opening. The wire passes through the seal and is sealed and connected to the seal. One end of the wire is electrically connected to the circuit board, and the other end of the wire is electrically connected to the oil pump.

9. The fuel tank according to claim 8, characterized in that, The sealing member is provided with a wiring through hole, and the wire is passed through the wiring through hole and is interference fit with the wiring through hole; The oil outlet pipe further includes an exhaust pipe body, which is connected to the second pipe body and communicates with the second pipe body; The refueling tank further comprises an exhaust valve, and the exhaust valve is mounted on an end of the exhaust pipe body away from the second pipe body; The sealing member is further provided with an exhaust channel, one end of which is connected to the second tube body, and the other end of which is connected to the exhaust tube body.

10. The fuel tank according to claim 9, characterized in that, The wiring through hole penetrates the sealing member along the extension direction of the second tube body, and the wiring through hole is spaced apart from the exhaust channel; The exhaust pipe body is connected to a side of the second pipe body away from the first pipe body; The exhaust passage includes a first exhaust section and a second exhaust section that are connected to each other. The first exhaust section is extended along the width direction of the box body and is connected to the second pipe body. The second exhaust section is extended along the height direction of the box body and is connected to the exhaust pipe body.

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