Novel motorcycle underneath fuel pump assembly

Abstract

The utility model relates to the technical field of fuel pumps, and discloses a novel motorcycle underneath fuel pump assembly which comprises a main body structure, the main body structure comprises a mounting plate, a fixing shell is mounted on the upper surface of the mounting plate, one side of the inner wall of the fixing shell is attached to one side of a main body, an oil inlet pipe is mounted on one side of the main body, and a filtering structure is mounted on one side of the oil inlet pipe. The two filtering structures are symmetrically distributed, one side of one filtering structure is provided with a one-way valve, and the other side of the main body is provided with two inserting pieces. According to the utility model, the one-way valve and the filtering structures are matched for use, so that fuel oil can pass through the inside of the other filtering structure by opening the one-way valve through oil pressure when the filtering net in one filtering structure is blocked through the filtering structures connected in parallel; therefore, heating damage caused by idling of the fuel pump due to blockage of the filtering structure is avoided, the service life of the fuel pump is greatly prolonged, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pumps, in particular to a novel motorcycle bottom-mounted fuel pump assembly. Background Art

[0002] Fuel pump, a technical term in the automotive and motorcycle parts industry, is a fundamental component of the fuel injection system in electronic fuel injection vehicles. Most current motorcycle fuel pumps are located inside the fuel tank, transferring fuel from the tank to the engine. Fuel tank fuel pumps are generally categorized as internal or external. Internal fuel pumps are further categorized as top-mounted or bottom-mounted, depending on their location within the fuel tank. Bottom-mounted fuel pumps are installed at the bottom of the fuel tank.

[0003] The utility model patent application, publication number "CN217761162U," discloses a fuel pump assembly with a bottom-mounted filter structure. The assembly primarily consists of a cover, an electronic fuel injection (EFI) pump, a pump core holder, a constant-pressure valve, and a filter structure. This technical solution offers the advantage of high structural strength and addresses existing motorcycle bottom-mounted fuel pumps, which typically pre-compress the pump core and filter within the cover. This structure places the EFI fuel pump directly in contact with the bottom surface of the cover, resulting in poor installation and positioning. Similarly, the filter's mounting position is misaligned, causing vibration and noise during use, which can lead to fatigue strain in the cover.

[0004] The bottom-mounted filter combination structure fuel pump assembly disclosed in the above document has the following defects: after the fuel pump assembly has been used for a period of time, the filter structure inside the fuel pump easily accumulates impurities in the oil and cannot filter the oil. Since the filter structure is set as a single one, the process of replacing the filter structure is relatively troublesome.

[0005] It can be seen from this that the existing fuel pump assembly with a bottom-mounted filter combination structure does not have a parallel filtering structure, and it is necessary to improve the existing shortcomings and provide a new type of motorcycle bottom-mounted fuel pump assembly. Utility Model Content

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a novel motorcycle bottom fuel pump assembly, comprising a main structure, the main structure comprising a mounting plate, a fixed shell mounted on the upper surface of the mounting plate, one side of the inner wall of the fixed shell being fitted with one side of the main body, an oil inlet pipe being mounted on one side of the main body, a filtering structure being mounted on one side of the oil inlet pipe, two filtering structures being arranged and symmetrically distributed, one side of one of the filtering structures being mounted with a one-way valve, two plugs being mounted on the other side of the main body, a protective shell being mounted on the lower end of the plugs, one side of the protective shell being fitted with one side of the fixed shell, a threaded hole being provided on the upper surface of the mounting plate, a groove being provided on one side of the threaded hole, a sealing ring being mounted inside the groove, a connecting block being mounted on the lower surface of the mounting plate, and an oil outlet pipe being mounted on one side of the connecting block.

[0008] Furthermore, the filtering structure includes a first shell, one side of the inner wall of the first shell is in contact with one side of the filter screen, the filter screens are set to be several and evenly distributed, and a support column is installed inside the filter screen, one end of the support column is in contact with the top of the inner wall of the first shell, and the other end of the support column passes through one end of the filter screen until it is in contact with the bottom of the inner wall of the first shell.

[0009] Furthermore, the one-way valve includes a second shell, one side of the inner wall of the second shell abuts against one side of the ball valve, the other side of the ball valve abuts against one side of the spring, and the other side of the spring abuts against the other side of the inner wall of the second shell.

[0010] Furthermore, a plug is installed on one side of the protective shell, one side of the plug is electrically connected to one side of the plug piece, and the other side of the plug passes through one side of the mounting plate to the other side of the mounting plate.

[0011] Furthermore, a through slot is provided on one side of the fixing shell.

[0012] Furthermore, a support block is installed on the upper surface of the mounting plate, and the upper surface of the support block abuts against the lower surface of the main body.

[0013] The utility model has the following beneficial effects:

[0014] (1) The utility model uses the one-way valve and the filter structure in conjunction with each other. When the filter screen inside one of the filter structures is blocked, the fuel can open the one-way valve through the oil pressure to pass through the inside of the other filter structure, thereby avoiding the fuel pump idling and causing heat damage due to the blockage of the filter structure, greatly improving the service life of the fuel pump and reducing the cost of use.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a side view of the overall structure of the utility model;

[0019] Figure 3 This is a cross-sectional view of the filter structure of the utility model;

[0020] Figure 4 This is a cross-sectional view of the one-way valve structure of the utility model;

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] In the figure: 1. Main structure; 101. Mounting plate; 102. Fixed shell; 103. Main body; 104. Insert; 105. Protective shell; 106. Threaded hole; 107. Sealing ring; 108. Oil inlet pipe; 109. Connecting block; 1010. Oil outlet pipe; 1011. Plug; 1012. Support block; 2. Filter structure; 201. First shell; 202. Filter screen; 203. Support column; 3. One-way valve; 301. Second shell; 302. Ball valve; 303. Spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 4As shown, the utility model is a new type of motorcycle bottom fuel pump assembly, including a main structure 1, the main structure 1 includes a mounting plate 101, a fixed shell 102 is installed on the upper surface of the mounting plate 101, one side of the inner wall of the fixed shell 102 is fitted with one side of the main body 103, an oil inlet pipe 108 is installed on one side of the main body 103, a filter structure 2 is installed on one side of the oil inlet pipe 108, the filter structures 2 are set to two and symmetrically distributed, one side of one filter structure 2 is installed with a one-way valve 3, two plugs 104 are installed on the other side of the main body 103, a protective shell 105 is installed at the lower end of the plug 104, one side of the protective shell 105 is fitted with one side of the fixed shell 102, a threaded hole 106 is opened on the upper surface of the mounting plate 101, a groove is opened on one side of the threaded hole 106, a sealing ring 107 is installed inside the groove, a connecting block 109 is installed on the lower surface of the mounting plate 101, and an oil outlet pipe 1010 is installed on one side of the connecting block 109;

[0025] The filter structure 2 includes a first housing 201. One side of the inner wall of the first housing 201 is in contact with one side of a filter screen 202. The filter screens 202 are provided in a plurality of evenly distributed configurations. A support column 203 is installed inside the filter screen 202. One end of the support column 203 is in contact with the top of the inner wall of the first housing 201. The other end of the support column 203 passes through one end of the filter screen 202 until it is in contact with the bottom of the inner wall of the first housing 201.

[0026] The one-way valve 3 includes a second housing 301 , one side of the inner wall of the second housing 301 abuts against one side of the ball valve 302 , the other side of the ball valve 302 abuts against one side of the spring 303 , and the other side of the spring 303 abuts against the other side of the inner wall of the second housing 301 ;

[0027] When in use, first, the fuel enters one of the filter structures 2 through the oil inlet pipe 108. The filter structure 2 can adsorb impurities in the fuel, further improving the filtering effect of the fuel. The filtered fuel then flows into the interior of the main body 103 through the oil inlet pipe 108. The main body 103 is a common product on the market. When the filter screen 202 inside the filter structure 2 is blocked, the fuel is squeezed by the oil pressure to squeeze the ball valve 302 inside the one-way valve 3, so that the ball valve 302 moves to the side of the spring 303, thereby squeezing the spring 303 to contract. At this time, the fuel enters the interior of the main body 103 through the filter structure 2. Through the mutual cooperation between the one-way valve 3 and the filter structure 2, the parallel filter structures 2 can be used to open the one-way valve 3 through the oil pressure when the filter screen 202 inside one of the filter structures 2 is blocked, and the fuel can pass through the interior of the other filter structure 2, thereby avoiding the fuel pump idling and causing heat damage due to the blockage of the filter structure 2, greatly improving the service life of the fuel pump and reducing the cost of use.

[0028] A plug 1011 is installed on one side of the protective shell 105. One side of the plug 1011 is electrically connected to one side of the plug 104. The other side of the plug 1011 passes through one side of the mounting plate 101 and extends to the other side of the mounting plate 101.

[0029] A through slot is formed on one side of the fixed shell 102;

[0030] A support block 1012 is mounted on the upper surface of the mounting plate 101 , and the upper surface of the support block 1012 abuts against the lower surface of the main body 103 ;

[0031] The support block 1012 can support the main body 103 , thereby greatly improving the stability of the main body 103 .

[0032] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A new type of motorcycle bottom fuel pump assembly, comprising a main structure (1), characterized in that: The main structure (1) comprises a mounting plate (101), a fixed shell (102) is mounted on the upper surface of the mounting plate (101), one side of the inner wall of the fixed shell (102) is in contact with one side of the main body (103), an oil inlet pipe (108) is mounted on one side of the main body (103), a filter structure (2) is mounted on one side of the oil inlet pipe (108), two filter structures (2) are arranged and are symmetrically distributed, one side of the filter structure (2) is mounted with a one-way valve (3), and the other side of the main body (103) is mounted with a one-way valve (3). Two inserts (104) are installed on the side, a protective shell (105) is installed at the lower end of the insert (104), one side of the protective shell (105) is fitted with one side of the fixed shell (102), a threaded hole (106) is opened on the upper surface of the mounting plate (101), a groove is opened on one side of the threaded hole (106), a sealing ring (107) is installed inside the groove, a connecting block (109) is installed on the lower surface of the mounting plate (101), and an oil outlet pipe (1010) is installed on one side of the connecting block (109).

2. The novel motorcycle undermount fuel pump assembly according to claim 1 is characterized in that: The filtering structure (2) comprises a first shell (201), one side of the inner wall of the first shell (201) is in contact with one side of a filter screen (202), the filter screens (202) are arranged in a plurality and are evenly distributed, a support column (203) is installed inside the filter screen (202), one end of the support column (203) is in contact with the top of the inner wall of the first shell (201), and the other end of the support column (203) passes through one end of the filter screen (202) until it is in contact with the bottom of the inner wall of the first shell (201).

3. The novel motorcycle undermount fuel pump assembly according to claim 1 is characterized in that: The one-way valve (3) comprises a second housing (301), one side of the inner wall of the second housing (301) abuts against one side of the ball valve (302), the other side of the ball valve (302) abuts against one side of the spring (303), and the other side of the spring (303) abuts against the other side of the inner wall of the second housing (301).

4. The novel motorcycle undermount fuel pump assembly according to claim 1 is characterized in that: A plug (1011) is installed on one side of the protective shell (105), one side of the plug (1011) is electrically connected to one side of the plug piece (104), and the other side of the plug (1011) passes through one side of the mounting plate (101) to the other side of the mounting plate (101).

5. The novel motorcycle bottom-mounted fuel pump assembly according to claim 1 is characterized in that: A through slot is provided on one side of the fixed shell (102).

6. The novel motorcycle bottom-mounted fuel pump assembly according to claim 1 is characterized in that: A support block (1012) is installed on the upper surface of the mounting plate (101), and the upper surface of the support block (1012) is in contact with the lower surface of the main body (103).

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