Improved oil pump

Abstract

The utility model relates to the technical field of oil pumps, in particular to an improved oil pump which comprises an oil pump body, a shell is fixedly connected to the top of the oil pump body, a vertical plate is fixedly connected to the top of one side of the inner wall of the shell, the bottom of the vertical plate is fixedly connected with one side of the top of the oil pump body, and a filter screen is in clearance fit with the inner wall of the lower portion of the vertical plate. And one side of the outer wall of the filter screen is in clearance fit with the inner wall below one side of the shell. Through cooperation of an oil pump, a shell, a filter screen, a vertical plate, a vertical pipe, a piston, a straight pipe and a lubricating structure, when the device is used, lubricating oil can be injected through the vertical pipe and absorbed by a sponge block, during lubricating, an air pump inflates an air bag, the air bag expands to downwards extrude a pressing plate, and the pressing plate extrudes the sponge block; and therefore, lubricating oil enters the oil pump through the filter screen, two gears of the oil pump can be conveniently and automatically lubricated, and the situation that normal use of the oil pump is seriously affected due to gear abrasion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engine oil pumps, in particular to an improved engine oil pump. Background Art

[0002] The function of the oil pump is to raise the oil to a certain pressure and then force it to the moving surfaces of various engine parts. The oil pump structure can be divided into two types: gear type and rotor type. Gear type oil pumps are further divided into internal gear type and external gear type. The latter is generally called gear type oil pump.

[0003] There is an improved micro oil pump (application number: 201720801347.5) in which a plurality of hollow raised columns with fan-shaped cross-sections are arranged in an annular array on the side of the centrifugal disk surface facing away from the contact ring, and oil drainage holes are densely distributed on the side wall of the raised columns. The above-mentioned problem still exists. When the rotor oil pump is used, the two ends of the oil pump are connected to the external pipeline, and the two internal gears are meshed to rotate the front blades. Since the two gears are meshed, a certain amount of wear will occur, and the gears need to be lubricated. It is not convenient to automatically lubricate the two gears of the oil pump, and it is easy to cause gear wear that seriously affects the normal use of the oil pump. When the oil pump is connected to the external pipeline, it is not convenient for the staff to perform multiple seals on the connection position. The sealing effect of a single sealing ring is poor. After the single sealing ring ages, leakage is prone to occur. Summary of the invention

[0004] The purpose of the utility model is to solve the shortcomings of the prior art, that is, it is inconvenient to automatically lubricate the two gears of the oil pump, the gear wear is likely to seriously affect the normal use of the oil pump, it is inconvenient for the staff to perform multiple seals on the connection positions, and a single sealing ring is prone to leakage after aging, and an improved oil pump is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An improved oil pump is designed, comprising an oil pump, wherein the top of the oil pump is fixedly connected to a shell, the top of one side of the inner wall of the shell is fixedly connected to a vertical plate, the bottom of the vertical plate is fixedly connected to one side of the top of the oil pump, a filter screen is fitted in the gap of the inner wall below the vertical plate, one side of the outer wall of the filter screen is fitted in the gap of the inner wall below one side of the shell, a vertical pipe is fixedly connected to the top inner wall of the shell, a piston is threadedly connected to the top inner wall of the vertical pipe, and a lubrication structure is provided on one side of the shell.

[0007] Preferably, the lubrication structure includes an air pump, one side of the outer wall of the air pump is fixedly connected to the upper inner wall of one side of the outer shell, one end of the air pump is fixedly connected to an airbag, the bottom of the airbag is fitted with a pressure plate, the inner wall of one side of the pressure plate is gap-matched with the lower outer wall of the vertical pipe, the bottom of the pressure plate is fitted with a sponge block, and the bottom of the sponge block is fitted with one side of the top of the filter.

[0008] Preferably, one end of the oil pump is fixedly connected to a straight pipe, one side of the outer wall of the straight pipe is gap-fitted with a pipe, the outer wall of the straight pipe is fixedly connected to a rubber sleeve, the outer wall of the rubber sleeve fits tightly with the inner wall of the pipe, and one side of the outer wall of the straight pipe is fixedly connected to a circular plate.

[0009] Preferably, a rubber pad is fitted at one end of the pipe, a straight block is fixedly connected to one end of the rubber pad, a rod body is fixedly connected to one end of the straight block, one side of the outer wall of the rod body is gap-matched with an outer groove at one end of the oil pump, and one end of the rubber pad is fitted with one end of the oil pump.

[0010] Preferably, a threaded rod is provided in a clearance between an inner wall on one side of the pipeline and an inner wall on one side of the oil pump.

[0011] Preferably, a nut is threadedly connected to one side of the outer wall of the threaded rod.

[0012] The improved oil pump proposed by the utility model has the beneficial effects that: through the cooperation of the oil pump, the housing, the filter screen, the vertical plate, the vertical pipe, the piston, the straight pipe, and the lubricating structure, when the device is in use, the lubricating oil can be injected through the vertical pipe, and the sponge block absorbs the lubricating oil. During lubrication, the air pump inflates the air bag, the air bag expands and presses the pressure plate downward, and the pressure plate presses the sponge block, so that the lubricating oil enters the oil pump through the filter screen, which is convenient for automatically lubricating the two gears of the oil pump, and avoids the situation where the gear wear seriously affects the normal use of the oil pump;

[0013] Through the coordination of the oil pump, pipeline, straight pipe, rubber sleeve, round plate, rubber pad, straight block and rod body, when the device is in use, the rod body can be inserted into the groove of the oil pump to position the rubber pad, and the straight pipe can be inserted into the pipeline, and then the rubber sleeve can enter the pipeline. The arrangement of the rubber sleeve and rubber pad makes it convenient for the staff to perform multiple seals on the connection positions to avoid leakage after aging of a single sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the oil pump, housing and vertical plate structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the oil pump, straight pipe and pipeline structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the airbag, pressure plate and air pump of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the pipe, nut and threaded rod of the utility model;

[0019] Figure 6 It is a schematic diagram of the straight tube, circular plate and rubber sleeve structure of the utility model.

[0020] In the figure: 1. oil pump, 2. lubrication structure, 2a1. air bag, 2a2. pressure plate, 2a3. air pump, 2a4. sponge block, 2b1. spring, 2b2. plug block, 3. rod body, 4. outer shell, 5. filter screen, 6. vertical plate, 7. vertical pipe, 8. rubber pad, 9. straight block, 10. straight pipe, 11. round plate, 12. rubber sleeve, 13. pipe, 14. nut, 15. threaded rod, 16. piston. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings: Example

[0022] Refer to the attached Figure 1-6 : In the present embodiment, an improved oil pump comprises an oil pump 1, the top of the oil pump 1 is fixedly connected with a shell 4, the top of one side of the inner wall of the shell 4 is fixedly connected with a vertical plate 6, the bottom of the vertical plate 6 is fixedly connected with one side of the top of the oil pump 1, the inner wall gap below the vertical plate 6 is matched with a filter screen 5, the inner wall below the vertical plate 6 is fixedly connected with a sealing ring, one side of the outer wall of the filter screen 5 is matched with the inner wall gap below one side of the shell 4, the filter screen 5 can move left and right on the inner wall below one side of the shell 4 when subjected to force, the material and mesh number of the filter screen 5 are determined according to actual use conditions, the top inner wall of the shell 4 is fixedly connected with a vertical pipe 7, the top inner wall of the vertical pipe 7 is threadedly connected with a piston 16, one end of the oil pump 1 is fixedly connected with a straight pipe 10, one side of the outer wall of the straight pipe 10 is matched with a pipe 13, the outer wall of the straight pipe 10 is fixedly connected with a rubber sleeve 12, and the rubber sleeve 12 plays a sealing role;

[0023] The outer wall of the rubber sleeve 12 fits tightly with the inner wall of the pipe 13, a circular plate 11 is fixedly connected to one side of the outer wall of the straight pipe 10, a rubber pad 8 is fitted on one end of the pipe 13, and a straight block 9 is fixedly connected to one end of the rubber pad 8. The rubber pad 8 plays a sealing role, and one end of the straight block 9 is fixedly connected to the rod body 3. One side of the outer wall of the rod body 3 is gap-matched with the outer groove of one end of the oil pump 1, and one end of the rubber pad 8 fits with one end of the oil pump 1. A threaded rod 15 is gap-matched between the inner wall of one side of the pipe 13 and the inner wall of one side of the oil pump 1, and a nut 14 is threadedly connected to one side of the outer wall of the threaded rod 15. This arrangement is used to connect the pipe 13 to the oil pump 1. A lubrication structure 2 is provided on one side of the outer shell 4. The lubrication structure 2 is convenient for automatically lubricating the two gears of the oil pump 1 to avoid the situation where gear wear seriously affects the normal use of the oil pump 1.

[0024] The lubrication structure 2 includes an air pump 2a3, one side of the outer wall of the air pump 2a3 is fixedly connected to the upper inner wall of one side of the outer shell 4, the model of the air pump 2a3 is determined according to the actual use situation, one end of the air pump 2a3 is fixedly connected to the air bag 2a1, the bottom of the air bag 2a1 is fitted with a pressure plate 2a2, the inner wall of one side of the pressure plate 2a2 is gap-matched with the lower outer wall of the vertical pipe 7, the bottom of the pressure plate 2a2 is fitted with a sponge block 2a4, the sponge block 2a4 can absorb the lubricating oil, the bottom of the sponge block 2a4 is fitted with the top side of the filter 5, so as to automatically lubricate the two gears of the oil pump 1 and avoid the situation where the gear wear seriously affects the normal use of the oil pump 1.

[0025] Working principle:

[0026] When connecting the oil pump 1 to the pipeline 13:

[0027] Insert the rod body 3 into the groove of the oil pump 1 to position the rubber pad 8, insert the straight pipe 10 into the pipe 13, and then the rubber sleeve 12 enters the pipe, insert the threaded rod 15 into the inner wall of one side of the pipe 13 and the inner wall of one side of the oil pump 1, rotate the nut 14 to move outward on the outer wall of the threaded rod 15, and then connect the pipe 13 with the oil pump 1;

[0028] When it is necessary to lubricate the gears inside the oil pump 1:

[0029] The lubricating oil is injected through the vertical pipe 7, and the sponge block 2a4 absorbs the lubricating oil. During lubrication, the air pump 2a3 inflates the airbag 2a1, and the airbag 2a1 expands and presses the pressure plate 2a2 downward. The pressure plate 2a2 squeezes the sponge block 2a4, and then the lubricating oil enters the oil pump through the filter 5, and then automatically lubricates the two gears of the oil pump 1. Example

[0030] Refer to the attached Figure 1-6In the present embodiment, an improved oil pump is provided, wherein the lubrication structure 2 may further include a spring 2b1, the top of the spring 2b1 being fixedly connected to one side of the top of the inner wall of the outer shell 4, the spring 2b1 applying a downward force to the plug 2b2, the bottom of the spring 2b1 being fixedly connected to the plug 2b2, one side of the outer wall of the plug 2b2 being gap-matched with a through groove at the bottom of one side of the outer shell 4, and the bottom of the outer wall of the plug 2b2 being gap-matched with a groove at the top of the filter 5.

[0031] Working principle:

[0032] Move the plug block 2b2 upward, remove the plug block 2b2 from the top groove of the filter screen 5, and move the filter screen 5 to the right, thereby realizing the disassembly of the filter screen 5, making it convenient for the staff to replace and clean the filter screen 5.

[0033] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An improved oil pump, comprising an oil pump (1), characterized in that: The top of the oil pump (1) is fixedly connected to a housing (4); a vertical plate (6) is fixedly connected to the top of one side of the inner wall of the housing (4); the bottom of the vertical plate (6) is fixedly connected to one side of the top of the oil pump (1); a filter screen (5) is gap-matched in the inner wall below the vertical plate (6); one side of the outer wall of the filter screen (5) is gap-matched in the inner wall below one side of the housing (4); a vertical pipe (7) is fixedly connected to the inner wall at the top of the housing (4); a piston (16) is threadedly connected to the inner wall at the top of the vertical pipe (7); and a lubrication structure (2) is provided on one side of the housing (4).

2. An improved oil pump according to claim 1, characterized in that: The lubrication structure (2) comprises an air pump (2a3), one side of the outer wall of the air pump (2a3) is fixedly connected to the upper inner wall of one side of the outer shell (4), one end of the air pump (2a3) is fixedly connected to an air bag (2a1), the bottom of the air bag (2a1) is fitted with a pressure plate (2a2), one side of the inner wall of the pressure plate (2a2) is gap-matched with the lower outer wall of the vertical pipe (7), the bottom of the pressure plate (2a2) is fitted with a sponge block (2a4), and the bottom of the sponge block (2a4) is fitted with one side of the top of the filter screen (5).

3. The improved oil pump according to claim 1, characterized in that: One end of the oil pump (1) is fixedly connected to a straight pipe (10), one side of the outer wall of the straight pipe (10) is gap-fitted with a pipe (13), the outer wall of the straight pipe (10) is fixedly connected to a rubber sleeve (12), the outer wall of the rubber sleeve (12) is tightly fitted with the inner wall of the pipe (13), and one side of the outer wall of the straight pipe (10) is fixedly connected to a circular plate (11).

4. An improved oil pump according to claim 3, characterized in that: One end of the pipe (13) is fitted with a rubber pad (8), one end of the rubber pad (8) is fixedly connected to a straight block (9), one end of the straight block (9) is fixedly connected to a rod body (3), one side of an outer wall of the rod body (3) is gap-matched with an outer groove of one end of the oil pump (1), and one end of the rubber pad (8) is fitted with one end of the oil pump (1).

5. The improved oil pump according to claim 3, characterized in that: A threaded rod (15) is provided in a clearance fit between an inner wall on one side of the pipeline (13) and an inner wall on one side of the oil pump (1).

6. An improved oil pump according to claim 5, characterized in that: A nut (14) is threadedly connected to one side of the outer wall of the threaded rod (15).

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