Fuel pump with adjustable mounting height

Abstract

The utility model relates to a fuel pump with adjustable installation height, which comprises a top cover, the top cover extends downwards to form a connecting column, the connecting column is connected with an outer shell, the outer side wall of the connecting column is sequentially provided with a plurality of clamping grooves at intervals from top to bottom, the outer side wall of the outer shell is provided with a connecting cylinder, and the connecting column is sleeved in the connecting cylinder. A clamping block is movably arranged on the connecting cylinder, a clamping block fixing piece capable of moving up and down is arranged on the connecting column, the clamping block fixing piece is used for fixing the clamping block in the clamping groove, and through the structure, the total height of the fuel pump can be adjusted, so that when the fuel pump is installed in fuel tanks with different depths, the fuel pump can be conveniently and rapidly installed. The fuel pump can convey and transfer oil at the bottom of the oil tank, and therefore the adaptability of the fuel pump is good.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pumps, in particular to a fuel pump with adjustable installation height. Background Art

[0002] The fuel pump is located inside the vehicle fuel tank, and its function is to suck fuel out of the fuel tank, pressurize it and then transport it to the fuel supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure.

[0003] At present, most of the installation specifications of fuel pumps are single specifications, so they can only adapt to single-specification assembly environments, and their adaptability is poor when facing fuel tanks with various depths. Summary of the Utility Model

[0004] The utility model provides a fuel pump with adjustable installation height, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows: a fuel pump with adjustable installation height, including a top cover, a connecting column extends downward from the top cover, an outer shell is connected to the connecting column, a plurality of card slots are sequentially arranged at intervals from top to bottom on the outer side wall of the connecting column, a connecting cylinder is arranged on the outer side wall of the outer shell, the connecting column is sleeved in the connecting cylinder, a clamping block is movably arranged on the connecting cylinder, and a clamping block fixing part that can move up and down is arranged on the connecting column, and the clamping block fixing part is used to fix the clamping block in the card slot.

[0006] The utility model is further arranged as: a movable groove is opened on the side wall of the connecting cylinder, a clamping strip is arranged in the movable groove, the lower end of the clamping strip is fixedly connected with the lower end of the movable groove, and the clamping block is arranged on the end surface of the clamping strip facing the inner side wall of the connecting cylinder.

[0007] The utility model is further arranged as: the clamping block fixing part includes a moving pipe and a limiting wall, the limiting wall is connected to the lower end of the moving pipe, and the limiting wall is used to hold the clamping strip between the outer side wall of the connecting column and the inner side wall of the limiting wall facing the connecting column.

[0008] The utility model is further arranged as: the inner side wall of the moving pipe is used for threaded connection with the outer side wall of the connecting column, and the moving pipe and the limiting wall are rotatably connected.

[0009] The utility model is further arranged as: a pressing pipe is fixedly arranged at the upper end of the limiting wall, the pressing pipe is sleeved outside the connecting column, the upper end of the pressing pipe is used for rotatable connection with the lower end of the moving pipe, and the upper and lower end faces of the pressing pipe are respectively used for abutting against the lower end face of the moving pipe and the upper end face of the connecting cylinder.

[0010] The present utility model is further configured such that: a plurality of clamping blocks are provided on the clamping strip.

[0011] The present utility model is further configured such that: a plurality of connecting columns are provided on the top cover.

[0012] In summary, the beneficial effects of the present utility model are as follows:

[0013] 1. With this structure, the overall height of the fuel pump can be adjusted. Therefore, when the fuel pump is installed in fuel tanks with different depths, the fuel pump can transfer the fuel at the bottom of the fuel tank, so its adaptability is better.

[0014] 2. The threaded connection between the movable pipe and the limiting wall enables the limiting wall to change its position following the height of the connecting cylinder. At the same time, the rotational connection between the movable pipe and the limiting wall allows the rotation of the movable pipe without interfering with the function of the limiting wall.

[0015] 3. The pressing pipe can further press the movable pipe above the connecting cylinder. At the same time, when the movable pipe is pressed above the connecting cylinder, the limiting wall cannot rotate anymore. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a partial sectional view of the present utility model;

[0018] Figure 2 is Figure 1 a partial enlarged view of part A in

[0019] Figure 3 is a three-dimensional structure diagram of the outer housing of the present utility model.

[0020] Reference numerals in the drawings: 1 top cover, 2 connecting columns, 21 clamping groove, 22 movable pipe, 23 limiting wall, 24 pressing pipe, 3 outer housing, 31 connecting cylinder, 32 movable groove, 33 clamping strip, 34 clamping block, 341 inclined surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will combine the drawings in the embodiments of the present utility model Figures 1-3, the technical solutions in the embodiments of the present utility model are described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0022] Embodiment:

[0023] As Figures 1 to 3 shown, the present utility model discloses a fuel pump with adjustable installation height, which includes a top cover 1 and a housing 3 located below the top cover 1. A fuel pump (not shown in the figure) is installed in the housing 3. The functions of the top cover 1, the housing 3, and the fuel pump are prior art, so no more details will be described.

[0024] A plurality of connecting columns 2 extend downward from the top cover 1. The connecting columns 2 are used to install the housing 3. A plurality of card slots 21 are sequentially arranged at intervals from top to bottom on the outer side wall of the connecting columns 2; a connecting cylinder 31 is arranged on the outer side wall of the housing 3. In this structure, the connecting columns 2 are sleeved in the connecting cylinder 31. Correspondingly, a clamping block 34 is movably arranged on the connecting cylinder 31. In addition, a clamping block fixing member that can move up and down is arranged on the connecting columns 2. The clamping block fixing member is used to fix the clamping block 34 in the card slot 21. The specific solution is as follows:

[0025] An activity slot 32 is opened on the side wall of the connecting cylinder 31. A clamping strip 33 is arranged in the activity slot 32. Only the lower end of the clamping strip 33 is fixedly connected to the activity slot 32. At the same time, the clamping block 34 is arranged on the end surface of the clamping strip 33 facing the inner side wall of the connecting cylinder 31; the clamping block fixing member includes a moving pipe 22 and a limiting wall 23. Among them, the inner side wall of the moving pipe 22 is used for threaded connection with the outer side wall of the connecting column 2. The upper end of the limiting wall 23 is fixedly provided with a pressing pipe 24. The pressing pipe 24 is sleeved outside the connecting column 2 and its upper end is used for rotational connection with the lower end of the moving pipe 22. In this structure, the upper and lower end surfaces of the pressing pipe 24 are respectively used for abutting against the lower end surface of the moving pipe 22 and the upper end surface of the connecting cylinder 31. The limiting wall 23 is used to abut the clamping strip 33 between the outer side wall of the connecting column 2 and the inner side wall of the limiting wall 23 facing the connecting column 2.

[0026] The working principle of this structure is as follows: When the overall height of the fuel pump needs to be reduced, the outer casing 3 can be first sleeved on the connecting column 2 and then slid upward. In this embodiment, the upper end of the locking block 34 has an inclined surface 341. Therefore, during the upward movement of the outer casing 3, the locking strip 33 and the locking block 34 will swing outward under the action of the inclined surface 341, and the outer casing 3 can move upward. When the outer casing 3 moves to an appropriate height on the connecting column 2, the movable pipe 22 can be rotated downward until the pressing pipe 24 is screwed tightly between the movable pipe 22 and the connecting cylinder 31. At this time, the pressing pipe 24 is equivalent to a gasket and can lock the movable pipe 22. At the same time, since the pressing pipe 24 is pressed, the limiting wall 23 can also always limit the locking strip 33, so that the locking strip 33 is held between the outer side wall of the connecting column 2 and the inner side wall of the limiting wall 23 facing the connecting column 2. At this time, the locking block 34 is engaged with the card slot 21, and the installation height of the outer casing 3 is fixed. When the outer casing 3 needs to be moved downward to increase the overall height of the fuel pump, first rotate the movable pipe 22 upward to make the limiting wall 23 leave the connecting cylinder 31, and then use your hand to bend the locking strip 33 outward to make the locking block 34 withdraw from the card slot 21, that is, the outer casing 3 can be moved downward. The subsequent steps of fixing the outer casing 3 have been described above, so they will not be elaborated here.

[0027] To further improve the fixing effect, multiple locking blocks 34 are provided on the locking strip 33.

[0028] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fuel pump with adjustable installation height, comprising a top cover (1), a connecting column (2) extending downward from the top cover (1), an outer shell (3) connected to the connecting column (2), characterized in that: A plurality of slots (21) are provided on the outer wall of the connecting column (2) at intervals from top to bottom, a connecting tube (31) is provided on the outer wall of the outer shell (3), the connecting column (2) is sleeved in the connecting tube (31), a block (34) is movably provided on the connecting tube (31), and a block fixing member that can move up and down is provided on the connecting column (2), the block fixing member is used to fix the block (34) in the slot (21).

2. A fuel pump with adjustable installation height according to claim 1, characterized in that: A movable groove (32) is provided on the side wall of the connecting tube (31), a clamping strip (33) is provided in the movable groove (32), the lower end of the clamping strip (33) is fixedly connected to the lower end of the movable groove (32), and the clamping block (34) is provided on the end surface of the inner side wall of the clamping strip (33) facing the connecting tube (31).

3. A fuel pump with adjustable installation height according to claim 2, characterized in that: The clamping block fixing member comprises a movable tube (22) and a limiting wall (23), wherein the limiting wall (23) is connected to the lower end of the movable tube (22), and the limiting wall (23) is used to hold the clamping strip (33) between the outer wall of the connecting column (2) and the inner wall of the limiting wall (23) facing the connecting column (2).

4. A fuel pump with adjustable installation height according to claim 3, characterized in that: The inner side wall of the movable tube (22) is used for threaded connection with the outer side wall of the connecting column (2), and the movable tube (22) and the limiting wall (23) are rotationally connected.

5. A fuel pump with adjustable installation height according to claim 4, characterized in that: A clamping tube (24) is fixedly provided at the upper end of the limiting wall (23), and the clamping tube (24) is sleeved outside the connecting column (2). The upper end of the clamping tube (24) is used for rotationally connecting with the lower end of the moving tube (22), and the upper and lower end surfaces of the clamping tube (24) are used for respectively abutting against the lower end surface of the moving tube (22) and the upper end surface of the connecting tube (31).

6. A fuel pump with adjustable installation height according to claim 5, characterized in that: A plurality of card blocks (34) are arranged on the card strip (33).

7. A fuel pump with adjustable installation height according to claim 4, characterized in that: A plurality of connecting columns (2) are provided on the top cover (1).

Images