Motorcycle fuel pump assembly

Abstract

The utility model discloses a motorcycle fuel pump assembly which comprises a fixing assembly, a fuel pump assembly and an oil level assembly, the fuel pump assembly is detachably connected with the fixing assembly, the oil level assembly is detachably connected with the fuel pump assembly, the fixing assembly comprises a fixing disc, an oil outlet pipe and a fixing plate, the oil outlet pipe and the fixing disc are integrally formed, and the fixing plate is arranged on the fixing disc. The middle of the fixing plate is hinged to the fixing disc, guide plates are arranged on the two sides of the fixing plate and are perpendicular to the fixing disc, the fuel pump assembly is provided with an installation groove matched with the fixing plate, and the fuel pump assembly is clamped into the guide plates through the installation groove. The fuel pump assembly is clamped into the guide plate through the mounting groove, limiting of the fuel pump assembly is achieved, the stability of the fuel pump assembly relative to the fixing assembly is improved, loosening and displacement of the fuel pump assembly are effectively prevented, and the stability is improved. In addition, the oil outlet pipe and the fixing disc are integrally formed, the sealing performance of the fuel pump assembly during oil outlet is guaranteed, and the stability of the fuel pump assembly is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel pump technical field, concretely relates to a motorcycle fuel pump assembly. BACKGROUND

[0002] The motorcycle fuel pump is usually arranged at the bottom of the motorcycle tank, and mainly continuously sucks fuel out of the tank, filters, adjusts to a certain pressure and oil supply to the fuel system, so as to drive the motorcycle.

[0003] The utility model discloses a kind of motorcycle brushless fuel pump assemblies with publication number "CN216741796U", including a flange assembly, a fuel pump support assembly, an oil level assembly, flange assembly is movably connected by first buckle assembly and fuel pump support assembly, fuel pump support assembly is movably connected by third buckle assembly and oil level assembly.

[0004] However, the above fuel pump assembly has the following defects:

[0005] First, the fuel pump support assembly and the flange assembly are buckled by external buckles and clamping grooves. During the driving of the motorcycle, the fuel in the tank shakes with the vehicle body, impacting the fuel pump assembly. The buckle and the clamping groove are easy to separate, causing the pump body to separate from the flange, affecting the normal use of the fuel pump.

[0006] Secondly, the fuel pump needs to be connected with a cable. The cable is easily impacted by fuel on the fuel pump and may be offset in the tank, affecting the stability of the cable connection and the stability of the fuel pump operation.

[0007] Therefore, it is necessary to improve the above defects. UTILITY MODEL CONTENTS

[0008] The utility model aims to provide a motorcycle fuel pump assembly with stable connection between components, quick installation and maintenance, and quick and stable wiring, to solve the above problems in the prior art.

[0009] To achieve the above purpose, the utility model adopts the technical scheme of a motorcycle fuel pump assembly, including a fixed component, a fuel pump component and an oil level component. The fixed component includes a fixed disc, an oil outlet pipe integrally formed with the fixed disc, and a fixed plate provided on the fixed disc. The middle part of the fixed plate is hinged to the fixed disc, and the two sides of the fixed plate are provided with guide plates perpendicular to the fixed disc. The fuel pump component is provided with a connecting piece, and the middle part of the connecting piece is provided with a mounting slot for the guide plate to pass through.

[0010] By adopting the above technical scheme: the mutual detachable connection between the fixed component, the oil level component and the fuel pump component improves the convenience of maintenance and repair of the fuel pump assembly. At the same time, the fuel pump component is clamped into the guide plate through the installation groove, realizing the limiting of the fuel pump component, the stability of the fuel pump component relative to the fixed component, effectively preventing the loosening and displacement of the fuel pump component, and improving the stability. In addition, the oil outlet pipe is integrally formed with the fixed disc, ensuring the sealing of the fuel pump assembly when oil is discharged, and improving the stability of the fuel pump assembly.

[0011] The above fuel pump assembly can be further provided as follows: the fuel pump component includes a first oil pump support, a pump body and a second oil pump support, the first oil pump support is provided with a pump cavity and an oil inlet cavity, the pump body is arranged in the pump cavity, a partition plate is arranged between the pump cavity and the oil inlet cavity, an oil suction hole is formed in the middle of the partition plate, one end of the pump body close to the oil suction hole is communicated with the oil inlet cavity, an oil inlet hole for fuel flowing into the oil inlet cavity is formed in the side wall of the oil inlet cavity, a support step for supporting the pump body is arranged at the edge of the oil suction hole, a limiting step is arranged on the side of the partition plate close to the pump cavity, and the pump body is clamped with the limiting step.

[0012] By adopting the above technical scheme: the combination structure of the first oil pump support and the second oil pump support can provide stable support for the pump body, ensure that the pump body maintains a stable position during operation, and reduce vibration and noise. At the same time, the installation groove facilitates the quick installation and fixation of the fuel pump assembly in the vehicle interior, improving the assembly efficiency. In addition, this split structure is conducive to maintenance and replacement, when the pump body or a certain support fails, it can be individually disassembled and replaced, reducing maintenance cost. In addition, the contact connection of the first oil pump support and the fixed disc ensures the stability of the overall structure, effectively preventing the fuel pump from shifting or loosening during operation. The pump cavity and the oil inlet cavity are arranged separately by the partition plate and combined with the oil suction hole, realizing the directional flow of fuel and improving the efficiency and stability of the pump body oil suction. The gap cooperation between the pump body and the limiting step and the support of the support step further enhance the fixing effect of the pump body in the pump cavity, reducing vibration and noise. The oil inlet of the pump body is communicated with the oil inlet cavity through the oil suction hole, so that the fuel can smoothly enter the pump body, and the oil inlet hole in the side of the oil inlet cavity ensures the continuous supply of fuel.

[0013] The above fuel pump assembly can be further provided as follows: the second oil pump support is provided with an oil outlet cavity in the middle, one end of the oil outlet cavity is provided with a bottom plate, the other end is provided with an opening, the bottom plate is provided with an oil pump branch pipe, the opening is sealingly installed with a cover, the cover is provided with a surrounding edge in gap cooperation with the second oil pump support, one end of the pump body away from the oil inlet cavity is communicated with the oil pump branch pipe, and the oil outlet end of the pump body is provided with a first sealing element in close contact with the inner wall of the oil pump branch pipe.

[0014] By adopting the technical scheme, the cover is welded to the opening by the surrounding edge to ensure that fuel does not leak when entering the oil outlet cavity through the pump body, the oil pump branch pipe is arranged in the oil outlet cavity, the oil outlet of the pump body is arranged at the oil outlet branch pipe on the bottom plate, the connection between the pump body and the oil outlet cavity is more stable, the first sealing element is arranged at the oil outlet of the pump body, and when the oil outlet of the pump body is arranged in the oil pump branch pipe, the risk of fuel leakage can be effectively reduced.

[0015] The fuel pump assembly can be further provided with an oil pipe cavity in the first oil pump support, the oil outlet pipe is arranged in the oil pipe cavity, the oil outlet cavity is further provided with an oil outlet branch pipe, the oil outlet pipe is in clearance fit with the oil outlet branch pipe, the end of the oil outlet pipe is provided with a first placement groove, and a second sealing element in close contact with the inner wall of the oil outlet branch pipe is fixed in the first placement groove.

[0016] By adopting the technical scheme, the oil outlet pipe passes through the oil pipe cavity, the oil outlet cavity isolates the oil outlet pipe from the pump body, and the pump body is prevented from shaking and colliding with the oil outlet pipe when falling off, so that the oil outlet pipe is prevented from being damaged. In addition, the oil outlet pipe is communicated with the oil outlet cavity through the oil outlet branch pipe on the second oil pump support, and the second sealing element is arranged in the first placement groove at the end, so that the oil outlet pipe and the oil outlet cavity are better sealed, fuel leakage is effectively prevented, and the sealing performance of the fuel transmission process is ensured.

[0017] The fuel pump assembly can be further provided with a communication branch pipe, the communication branch pipe is clamped with a pressure valve, a support plate is arranged in the first oil pump support, a limiting ring is arranged in the middle of the pressure valve, one end of the limiting ring is abutted against the first oil pump support, the other end is abutted against the bottom plate, a second placement groove is arranged at the end of the communication end of the pressure valve and the oil outlet cavity, and a third sealing element in close contact with the inner wall of the communication branch pipe is arranged in the second placement groove.

[0018] By adopting the technical scheme, the oil outlet cavity is provided with the communication branch pipe and the pressure valve, and the third sealing element is arranged in the second placement groove at the communication end of the pressure valve and the oil outlet cavity, so that the fuel output pressure can be effectively controlled, fuel backflow is prevented, the sealing performance of the connection is good, fuel leakage is avoided, the stable operation of the fuel pump assembly is further ensured, the safety and reliability of the fuel supply system are improved, and stable and appropriate fuel supply for the engine is ensured. In addition, the pressure valve is abutted against the support plate of the first oil pump support and the bottom plate of the second oil pump support through the limiting ring, the pressure valve will not fall off due to fuel impact in the oil tank, and the stability of the pressure valve in the fuel pump assembly is improved.

[0019] The fuel pump assembly can be further provided with a plurality of mounting holes arranged on the end face of the fixed disc, a plurality of wire holes are arranged on the fixed disc, a wire block is arranged on the end face of the fixed disc at both ends of the wire hole, the wire block is communicated with the wire hole at the bottom, and a wire screw is arranged in the wire block for connecting the power supply to the fuel pump assembly.

[0020] By adopting the technical scheme, the wire block is internally provided with the wire connection bolt communicated with the wire hole, the wire is conveniently arranged and connected, the electrical connection of the fuel pump is more stable and reliable, the wire connection operation is simplified, the production and assembly efficiency is improved, and the fuel pump assembly is more convenient and fast to maintain or check the wire, and the use performance and maintenance convenience of the fuel pump assembly are further optimized.

[0021] The fuel pump assembly can be further provided with a wire slot for accommodating the wire on the outer wall of the first fuel pump support on the side of the wire block, and a wire buckle on the outer wall of the second fuel pump support.

[0022] By adopting the technical scheme, the wire slot is arranged on the outer wall of the first fuel pump support, and the wire buckle is arranged on the second fuel pump support, so that the wire can pass through the fuel pump support in an orderly manner, the electrical connection of the fuel pump is realized, the wire slot and the wire buckle can fix and protect the wire, the wire is prevented from loosening, falling off or being damaged by the outside, the stability and safety of the electrical system of the fuel pump are ensured, the wire arrangement operation in the production and assembly process is facilitated, and the assembly efficiency and quality are improved.

[0023] The fuel pump assembly can be further provided with a first fixing hole formed at the end of the guide plate away from the fixed plate, a second fixing hole formed on the second fuel pump support, an oil level assembly including an oil level support, a float ball, a float support rod and a float support, the oil level support being provided with a fixing block, the fixing block being riveted with the first fixing hole and the second fixing hole respectively, the float support being detachably connected with the oil level support, the float ball being sleeved on the end of the float support rod away from the float support, and the float support rod being rotatably connected with the float support.

[0024] By adopting the technical scheme, the oil level assembly is rotatable relative to the float support by the buoyancy of the float, and the limited fuel amount can be effectively known. In addition, the fixing block on the oil level support and the first fixing hole on the guide plate and the second fixing hole on the second fuel pump support are matched with each other, the oil level assembly is detachably connected with the fixed assembly and the fuel pump assembly, the installation of the oil level assembly is more convenient, the connection is more stable, and the function and use performance of the fuel pump assembly are optimized.

[0025] The fuel pump assembly can be further provided with a resistance support arranged on the oil level support, a plurality of resistance sheets arranged in a fan shape on the resistance support, an induction block arranged at the connection between the float support and the float support rod, and the induction block being clamped with the float support rod.

[0026] By adopting the technical scheme, the resistance support and the plurality of resistance sheets arranged in a fan shape are arranged on the oil level support, and the induction block clamped with the float support rod is arranged at the connection between the float support and the float support rod, so that when the float support rod rotates, the induction block can contact different resistance sheets with the change of the fuel level, thereby accurately monitoring the fuel level and converting the fuel level into an electrical signal output, and the accuracy and reliability of the oil level monitoring are improved.

[0027] The utility model discloses the beneficial effect is:

[0028] First, the fixed component passes the guide plate of fixed plate both sides and the installation slot of fuel pump assembly both sides mutual cooperation, the connection of fuel pump assembly and fixed component is more stable, and fuel pump assembly does not shake relative to fixed component production in the oil tank, effectively prevent fuel pump assembly loosening displacement, promote stability.In addition, fuel pump assembly structure is more compact, and the integral type of fixed disc is formed to the oil pipe, guarantees the leakproofness of fuel pump assembly oil outlet, improves fuel pump assembly availability;

[0029] Second, fuel pump assembly is divided into first oil pump support and second oil pump support two parts, and the pump body is arranged in the first oil pump support, and the pump body extracts fuel from the oil inlet cavity of the first oil pump support and exports fuel to the oil outlet cavity of the second oil pump support, can be more convenient to the fuel pump assembly is split, and the replacement and overhaul of fuel pump assembly are more convenient;

[0030] Third, the threading slot on the first oil pump support and the threading buckle on the second oil pump support cooperate with each other, so that the wire can pass through the oil pump support in order, realize the electrical connection of fuel pump, and the threading slot and the threading buckle can fix and protect the wire, prevent the wire from loosening, falling off or being damaged by the outside world, ensure the stability and safety of the electrical system of fuel pump, also facilitate the wiring operation in the production and assembly process, improve the assembly efficiency and quality.

[0031] The utility model will be further explained in detail in connection with the drawings and examples. DRAWINGS

[0032] Figure 1 It is the whole structure schematic diagram of fuel pump assembly of the utility model;

[0033] Figure 2 It is the split schematic diagram of fuel pump assembly of the utility model;

[0034] Figure 3 It is the structure schematic diagram of fixed component of the utility model;

[0035] Figure 4 It is the structure schematic diagram of fuel pump assembly of the utility model;

[0036] Figure 5 It is the split schematic diagram of fuel pump assembly of the utility model;

[0037] Figure 6 It is the cross section schematic diagram of first oil pump support of the utility model;

[0038] Figure 7 It is the structure schematic diagram of oil level assembly of the utility model;

[0039] Figure 8 It is the split schematic view of oil level assembly of the utility model;

[0040] Figure 9 It is the cooperation schematic view of resistance support and float support rod of the utility model;

[0041] Label annotation: fixed assembly 1, fixed disc 11, threading hole 111, wiring block 112, wiring bolt 113, mounting hole 114, oil outlet pipe 12, first placement groove 121, second sealing element 122, fixed plate 13, guide plate 131, first fixed hole 132, fuel pump assembly 2, connecting element 21, mounting groove 211, first oil pump support 22, pump cavity 221, oil inlet cavity 222, oil inlet hole 2221, partition plate 223, oil suction hole 2231, support step 2232, limiting step 2233, oil pipe cavity 224, threading groove 225, support plate 226, second oil pump support 23, oil outlet cavity 231, bottom plate 2311, opening 2312, oil pump branch pipe 2313, oil outlet branch pipe 2314, communication branch pipe 2315, cover 232, surrounding edge 2321, threading buckle 233, second fixed hole 234, pump body 24, first sealing element 241, pressure valve 25, second placement groove 251, third sealing element 252, limiting ring 253, oil level assembly 3, oil level support 31, fixed block 311, float ball 32, float support rod 33, float support 34, resistance support 35, resistance sheet 351, sensing block 352. DETAILED DESCRIPTION

[0042] The technical schemes in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0043] Figures 1 to 9The motorcycle fuel pump assembly shown comprises a fixed assembly 1, a fuel pump assembly 2 and an oil level assembly 3. The fixed assembly 1 comprises a fixed disc 11, an oil outlet pipe 12 integrally formed with the fixed disc 11 and a fixed plate 13 arranged on the fixed disc 11. The middle part of the fixed plate 13 is hinged to the fixed disc 11. The fixed plate 13 is provided with guide plates 131 on both sides, which are arranged perpendicularly to the fixed disc 11. The fuel pump assembly 2 is provided with a connecting piece 21, and the middle part of the connecting piece 21 is provided with a mounting groove 211 for the guide plates 131 to pass through. The fixed assembly 1, the oil level assembly 3 and the fuel pump assembly 2 are detachably connected with each other, which improves the convenience of maintenance and repair of the fuel pump assembly. At the same time, the fuel pump assembly 2 is clamped into the guide plates 131 through the mounting groove 211, which limits the fuel pump assembly 2 and improves the stability of the fuel pump assembly 2 relative to the fixed assembly 1, effectively preventing the fuel pump assembly 2 from loosening and shifting and improving the stability. In addition, the oil outlet pipe 12 is integrally formed with the fixed disc 11, which ensures the sealing performance of the fuel pump assembly during oil outlet and improves the stability of the fuel pump assembly.

[0044] The fuel pump assembly 2 comprises a first oil pump bracket 22, a pump body 24 and a second oil pump bracket 23. The first oil pump bracket 22 is provided with a pump cavity 221 and an oil inlet cavity 222. The pump body 24 is arranged in the pump cavity 221. A partition plate 223 is arranged between the pump cavity 221 and the oil inlet cavity 222. The partition plate 223 is provided with an oil suction hole 2231 in the middle. The pump body 24 is in communication with the oil inlet cavity 222 at the end close to the oil suction hole 2231. An oil inlet hole 2221 for fuel flowing into the oil inlet cavity 222 is arranged on the side wall of the oil inlet cavity 222. A support step 2232 for supporting the pump body 24 is arranged on the edge of the oil suction hole 2231. A limiting step 2233 is arranged on the side of the partition plate 223 close to the pump cavity 221. The pump body 24 is clamped with the limiting step 2233. The combined structure of the first oil pump bracket 22 and the second oil pump bracket 23 can provide stable support for the pump body 24, ensure that the pump body 24 maintains a stable position during operation, and reduce vibration and noise. At the same time, the installation groove 211 facilitates the quick installation and fixation of the fuel pump assembly in the vehicle interior, improving the assembly efficiency. In addition, this split structure is beneficial to maintenance and replacement. When the pump body 24 or a certain bracket fails, it can be individually disassembled and replaced, reducing maintenance costs. In addition, the contact connection between the first oil pump bracket 22 and the fixed disc 11 ensures the stability of the overall structure, effectively preventing the fuel pump from shifting or loosening during operation. The pump cavity 221 and the oil inlet cavity 222 are arranged separately by the partition plate 223 and combined with the oil suction hole 2231, realizing the directional flow of fuel and improving the oil suction efficiency and stability of the pump body 24. The gap cooperation between the pump body 24 and the limiting step 2233 and the support function of the support step 2232 further enhance the fixing effect of the pump body 24 in the pump cavity 221, reducing vibration and noise. The oil inlet of the pump body 24 is in communication with the oil inlet cavity 222 through the oil suction hole 2231, so that the fuel can smoothly enter the pump body 24, and the oil inlet hole 2221 on the side of the oil inlet cavity 222 ensures the continuous supply of fuel.

[0045] The second oil pump support 23 is provided with an oil outlet cavity 231 in the middle, one end of the oil outlet cavity 231 is provided with a bottom plate 2311, the other end is provided with an opening 2312, the bottom plate 2311 is provided with an oil pump branch pipe 2313, the opening 2312 is sealingly installed with a cover 232, the cover 232 is provided with a surrounding edge 2321 in gap cooperation with the second oil pump support 23, the pump body 24 is in communication with the oil pump branch pipe 2313 away from the oil inlet cavity 222, the oil outlet end of the pump body 24 is provided with a first sealing element 241, and the first sealing element 241 is in close contact with the inner wall of the oil pump branch pipe 2313. The cover 232 is welded to the opening 2312 through the surrounding edge 2321 to ensure that the fuel will not leak when passing through the pump body 24 into the oil outlet cavity 231, and the oil pump branch pipe 2313 is arranged in the oil outlet cavity 231, and the oil outlet of the pump body 24 is arranged at the oil outlet branch pipe 2314 on the bottom plate 2311, so that the connection between the pump body 24 and the oil outlet cavity 231 is more stable. In addition, the first sealing element 241 is arranged at the oil outlet of the pump body 24, and when the oil outlet of the pump body 24 is arranged in the oil pump branch pipe 2313, the risk of fuel leakage can be effectively reduced.

[0046] The first oil pump support 22 is further provided with an oil pipe cavity 224, the oil outlet pipe 12 is arranged in the oil pipe cavity 224, the oil outlet cavity 231 is further provided with an oil outlet branch pipe 2314, the oil outlet pipe 12 is in gap cooperation with the oil outlet branch pipe 2314, the oil outlet pipe 12 is provided with a first placing groove 121 at the end, and the first placing groove 121 is fixedly provided with a second sealing element 122 in close contact with the inner wall of the oil outlet branch pipe 2314. The oil outlet pipe 12 passes through the oil pipe cavity 224, and the oil outlet cavity 231 isolates the oil outlet pipe 12 and the pump body 24, so that the pump body 24 does not shake and collide with the oil outlet pipe 12 when falling off, causing damage to the oil outlet pipe 12. In addition, the oil outlet pipe 12 is in communication with the oil outlet cavity 231 through the oil outlet branch pipe 2314 on the second oil pump support 23, and the second sealing element 122 is arranged in the first placing groove 121 at the end, so that the oil outlet pipe 12 and the oil outlet cavity 231 are better sealed, effectively preventing fuel leakage, and ensuring the sealing performance of the fuel transmission process.

[0047] The oil outlet cavity 231 is also provided with a communication branch pipe 2315, the communication branch pipe 2315 is clamped with a pressure valve 25, the first oil pump support 22 is provided with a support plate 226, the middle part of the pressure valve 25 is provided with a limiting ring 253, one end of the limiting ring 253 abuts against the first oil pump support 22, and the other end abuts against the bottom plate 2311, the end part of the communication end of the pressure valve 25 and the oil outlet cavity 231 is provided with a second placing groove 251, and the second placing groove 251 is provided with a third sealing piece 252 abutting against the inner wall of the communication branch pipe 2315. The oil outlet cavity 231 is provided with the communication branch pipe 2315 and the pressure valve 25, and the third sealing piece 252 is arranged in the second placing groove 251 of the communication end of the pressure valve 25 and the oil outlet cavity 231, so that the fuel output pressure can be effectively controlled, fuel backflow is prevented, the sealing performance of the connection part is good, fuel leakage is avoided, the stable operation of the fuel pump assembly is further ensured, the safety and reliability of the fuel supply system are improved, and stable and appropriate fuel supply of the engine is ensured. In addition, the pressure valve 25 abuts against the support plate 226 of the first oil pump support 22 and the bottom plate 2311 of the second oil pump support 23 through the limiting ring 253, the pressure valve 25 will not fall off in the fuel tank due to fuel impact, and the stability of the pressure valve 25 in the fuel pump assembly 2 is improved.

[0048] A plurality of mounting holes 114 are formed in the end face of the fixed disc 11, and a plurality of wire holes 111 are formed in the fixed disc 11. The fixed disc 11 is provided with a wire block 112 on the end faces at both ends of the wire hole 111. The wire block 112 is in communication with the wire hole 111, and the wire block 112 is provided with a wire screw 113 for connecting the power supply to the fuel pump assembly. The wire block is provided with a wire screw 113 in communication with the wire hole 111, which facilitates the arrangement and connection of the wire, makes the electrical connection of the fuel pump more stable and reliable, simplifies the wiring operation, improves the production and assembly efficiency, and is more convenient and fast during maintenance or line inspection, and further optimizes the use performance and maintenance convenience of the fuel pump assembly.

[0049] The first oil pump support 22 is provided with a wire slot 225 on the outer wall of one side of the wire block 112 for accommodating the wire, and the outer wall of the second oil pump support 23 is provided with a wire buckle 233. The first oil pump support 22 is provided with a wire slot 225, and the second oil pump support 23 is provided with a wire buckle 233, so that the wire can pass through the oil pump support in an orderly manner, the electrical connection of the fuel pump is realized, the wire slot 225 and the wire buckle 233 can fix and protect the wire, prevent the wire from loosening, falling off or being damaged by the outside world, ensure the stability and safety of the electrical system of the fuel pump, and facilitate the wiring operation during production and assembly, improve the assembly efficiency and quality.

[0050] The first fixing hole 132 is arranged at one end of the guide plate 131 away from the fixed plate 13, and the second fixing hole 234 is arranged at the second oil pump support 23. The oil level assembly 3 comprises an oil level support 31, a float ball 32, a float support rod 33 and a float support 34. The oil level support 31 is provided with a fixing block 311, which is riveted with the first fixing hole 132 and the second fixing hole 234, respectively. The float support 34 is detachably connected with the oil level support 31. The float ball 32 is sleeved at one end of the float support rod 33 away from the float support 34, and the float support rod 33 is rotationally connected with the float support 34. The oil level assembly 3 is rotated relative to the float support 34 by the buoyancy of the float, so that the limited amount of fuel can be effectively known. In addition, the fixing block 311 on the oil level support 31 cooperates with the first fixing hole 132 on the guide plate 131 and the second fixing hole 234 of the second oil pump support 23, so that the oil level assembly 3 is detachably connected with the fixed assembly 1 and the fuel pump assembly 2. The installation of the oil level assembly 3 is more convenient, and the connection is more stable. The function and use performance of the fuel pump assembly are optimized.

[0051] The oil level support 31 is provided with a resistance support 35, and a plurality of resistance sheets 351 arranged in a fan shape are arranged on the resistance support 35. The float support 34 is provided with an induction block 352 at the connection position with the float support rod 33, and the induction block 352 is clamped with the float support rod 33. The oil level support 31 is provided with the resistance support 35 and the plurality of resistance sheets 351 arranged in a fan shape, and the induction block 352 clamped with the float support rod 33 is arranged at the connection position of the float support 34 and the float support rod 33. When the float support rod 33 rotates, the induction block 352 can be in contact with different resistance sheets 351 according to the change of the fuel level, so as to accurately monitor the fuel level and convert it into an electrical signal output, thereby improving the accuracy and reliability of the oil level monitoring.

[0052] In the embodiment, the fixed assembly 1 is installed in the oil tank, the fuel pump assembly 2 is clamped into the mounting groove 211 in the middle of the connecting piece 21, and the oil level assembly 3 is riveted at one end of the guide plate 131. The stability of the fuel pump assembly in the oil tank is effectively improved. When each component fails, the fuel pump assembly can be quickly disassembled, repaired and replaced, which is more convenient and fast.

Claims

1. A motorcycle fuel pump assembly comprising a securing assembly, a fuel pump assembly and an oil level assembly, characterised in that: The fixed assembly comprises a fixed disc, an oil outlet pipe integrally formed with the fixed disc, and a fixed plate provided on the fixed disc, the middle part of the fixed plate is hinged to the fixed disc, both sides of the fixed plate are provided with guide plates, the guide plates are arranged perpendicularly to the fixed disc, the fuel pump assembly is provided with a connecting piece, and a mounting groove for the guide plates to pass through is formed in the middle part of the connecting piece.

2. The motorcycle fuel pump assembly of claim 1, wherein: The fuel pump assembly comprises a first oil pump support, a pump body, and a second oil pump support, the first oil pump support is provided with a pump cavity and an oil inlet cavity, the pump body is arranged in the pump cavity, a partition plate is arranged between the pump cavity and the oil inlet cavity, an oil suction hole is formed in the middle part of the partition plate, the end of the pump body close to the oil suction hole is communicated with the oil inlet cavity, an oil inlet hole for fuel to flow into the oil inlet cavity is formed in the side wall of the oil inlet cavity, a support step for supporting the pump body is arranged at the edge of the oil suction hole, a limiting step is arranged on the side of the partition plate close to the pump cavity, and the pump body is clamped with the limiting step.

3. The motorcycle fuel pump assembly of claim 2, wherein: The middle part of the second oil pump support is provided with an oil outlet cavity, one end of the oil outlet cavity is provided with a bottom plate, and the other end is provided with an opening, the bottom plate is provided with an oil pump branch pipe, the opening is sealingly mounted with a cover, the cover is provided with a surrounding edge in gap cooperation with the second oil pump support, the end of the pump body away from the oil inlet cavity is communicated with the oil pump branch pipe, the end of the oil outlet of the pump body is provided with a first sealing element, and the first sealing element is in close contact with the inner wall of the oil pump branch pipe.

4. The motorcycle fuel pump assembly of claim 3, wherein: The first oil pump support is further provided with an oil pipe cavity, the oil outlet pipe is arranged in the oil pipe cavity, the oil outlet cavity is further provided with an oil outlet branch pipe, the oil outlet pipe is in gap cooperation with the oil outlet branch pipe, the end of the oil outlet pipe is provided with a first placing groove, and a second sealing element in close contact with the inner wall of the oil outlet branch pipe is fixed in the first placing groove.

5. The motorcycle fuel pump assembly of claim 4, wherein: The oil outlet cavity is further provided with a communication branch pipe, the communication branch pipe is clamped with a pressure valve, a supporting plate is arranged in the first oil pump support, a limiting ring is arranged in the middle part of the pressure valve, one end of the limiting ring abuts against the first oil pump support, and the other end abuts against the bottom plate, a second placing groove is formed in the end of the pressure valve communicated with the oil outlet cavity, and a third sealing element in close contact with the inner wall of the communication branch pipe is arranged in the second placing groove.

6. A motorcycle fuel pump assembly as claimed in any one of claims 2 to 5, wherein: A plurality of mounting holes are formed in the end face of the fixed disc, a plurality of wire holes are formed in the fixed disc, the fixed disc is provided with a wire block on the end faces at both ends of the wire holes, the wire block is communicated with the wire holes at the bottom, and the wire block is provided with a wire screw for connecting the power supply to the fuel pump assembly.

7. The motorcycle fuel pump assembly of claim 6, wherein: A wire slot for accommodating the wire is arranged on the outer wall of the first oil pump support at the side of the wire block, and a wire buckle is arranged on the outer wall of the second oil pump support.

8. The motorcycle fuel pump assembly of claim 2, wherein: A first fixing hole is formed in the end of the guide plate away from the fixed plate, a second fixing hole is formed in the second oil pump support, the oil level assembly comprises an oil level support, a float ball, a float support rod, and a float support, the oil level support is provided with a fixed block, the fixed block is riveted with the first fixing hole and the second fixing hole respectively, the float support is detachably connected with the oil level support, the float ball is sleeved on the end of the float support rod away from the float support, and the float support rod is rotationally connected with the float support.

9. The motorcycle fuel pump assembly of claim 8, wherein: The oil level support is provided with a resistance support, a plurality of resistance sheets are arranged in a fan shape on the resistance support, an induction block is arranged at the connection position of the float support and the float support rod, and the induction block is clamped with the float support rod.

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