Positioning disc applied to lining pressure filter screen of grease lubrication pump

By introducing a positioning disc with a filter screen into the lubrication pump, the problems of low oil injection efficiency and impurity blockage in traditional lubrication pumps are solved, achieving efficient lubrication pump operation and extending equipment life.

CN223795041UActive Publication Date: 2026-01-13ZHEJIANG LULUTONG LUBRICATION MASCH CO LTD
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Patent Information

Application Number
CN202520715154.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-01-13
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

Traditional lubrication pumps have low oil injection efficiency and are prone to clogging of the oil outlet pipe by grease and impurities, leading to poor operation or damage to the lubrication pump.

Method used

Design a positioning disc with a filter screen. Drive the oil pressure paddle to rotate via a motor, pushing the grease from inside the oil cover to the main body of the lubrication pump. The filter screen filters out impurities and leaves them in the receiving groove, preventing impurities from entering the lubrication system.

Benefits of technology

It improves the oil injection speed, prevents impurities from clogging the oil outlet pipe, ensures the smooth operation of the lubrication pump, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a positioning disc applied to a lining pressure filter screen of a grease lubricating pump, which comprises a lubricating pump main body, an oil cover, a top cover, a positioning disc, a motor and an oil pressing paddle, and aims to directly open the top cover of an oil storage cylinder and pour grease into the oil cover, and drive the oil pressing paddle to rotate through the motor, so that the grease can be filled into the oil storage cylinder. Due to the fact that the positioning disc is provided with the filter screen, impurities in the grease are filtered out through the filter screen, the impurities are kept in the containing groove temporarily, the impurities are prevented from being mixed into the grease, a lubricating system is prevented from breaking down, the friction face of a lubricating part is prevented from being damaged, and the oil outlet pipe is prevented from being blocked by the impurities. And smooth operation of the lubricating pump is ensured.
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Description

Technical Field

[0001] This utility model relates to the technical field of lubrication pumps, and in particular to a positioning disc used for lining filter screens in grease lubrication pumps. Background Technology

[0002] A lubrication pump is an oil supply device that supplies lubricating grease. Traditional lubrication pumps are equipped with an oil inlet and an oil outlet for injecting and discharging grease, a pressure paddle for pushing the grease out of the oil outlet, and an oil cover for storing the oil. The oil inlet of the lubrication pump has a built-in filter structure and a one-way structure. When grease is injected from the oil inlet, it is injected into the oil cover through the filter structure.

[0003] However, injecting oil through the grease inlet is inefficient, and users often cannot tolerate this slow injection process. In order to increase the injection speed, many users choose to pour the grease directly into the grease tank. Although this method can significantly speed up the injection process, it also brings new problems: there is no filter structure inside the grease tank, and impurities in the grease will accumulate and block the oil outlet pipe of the lubrication pump or other key components, causing the lubrication pump to malfunction or even be damaged. Utility Model Content

[0004] To overcome the shortcomings of the prior art, the technical solution adopted by this utility model is: a positioning plate for a filter screen lining a grease lubrication pump, comprising a lubrication pump body, an oil cover, a top cover, a positioning plate, a motor, and an oil press. The lubrication pump body is detachably connected to the top cover via the oil cover, and a positioning plate is snapped between the lubrication pump body and the oil cover. A motor is installed inside the lubrication pump body, and the output shaft of the motor passes through the positioning plate and is connected to the oil press. The positioning plate is provided with several oil passage holes. The oil press pushes the grease above the positioning plate toward the lubrication pump body. A filter screen is installed at the oil passage holes of the positioning plate, and the oil passage holes and the filter screen are combined to form a receiving groove for accommodating impurities.

[0005] Using the above technical solution, users can directly open the top cover of the oil reservoir and pour the grease into the oil cover. The motor drives the oil press paddle to rotate, causing the grease in the oil cover to be squeezed out from the oil outlet through the oil passage. Since the positioning plate is equipped with a filter screen, impurities in the grease are filtered out through the filter screen and temporarily retained in the receiving groove to prevent impurities from mixing into the grease, prevent lubrication system failure and damage to the friction surfaces of lubricated parts, and avoid impurities clogging the oil outlet, ensuring smooth operation of the lubrication pump.

[0006] The present invention is further configured such that the positioning disk has multiple rings of oil passage holes distributed in a circular pattern from the inside out.

[0007] Furthermore, the positioning plate is provided with a center hole and a mounting hole, the output shaft of the motor is rotatably connected to the positioning plate through a bearing, and the positioning plate is threadedly connected to the lubrication pump body through the mounting hole.

[0008] Furthermore, the positioning disk is provided with multiple first reinforcing ribs concentrically distributed with the central hole, and second reinforcing ribs distributed circumferentially with the central hole. The first and second reinforcing ribs are staggered and form the oil passage hole.

[0009] Furthermore, the positioning disc is integrally injection molded based on the filter screen.

[0010] Using the above technical solution, the positioning plate and the filter screen are integrally injection molded. The positioning plate has multiple staggered reinforcing ribs and forms oil passage holes. The reinforcing ribs improve the structural strength of the filter screen. In addition, the positioning plate adopts a detachable design, allowing users to regularly replace or clean the positioning plate and filter screen, extending the service life of the equipment and maintaining high-efficiency filtration performance.

[0011] The present invention is further configured such that the oil press paddle has an installation part, an oil press part and a bending part, the output shaft of the motor is connected to the installation part, the oil press part is parallel to and covers the surface of the positioning plate, and the bending part is inclined upward in the direction of rotation of the oil press paddle.

[0012] Using the above technical solution, the oil press paddle is integrally bent and formed, which enhances the structural strength. The inclined design of the bending part helps to collect grease and squeeze the grease toward the oil passage, which causes the oil pressure in the oil passage to increase instantaneously. The oil press part covers the positioning plate surface in parallel, which effectively prevents the grease from flowing back into the adjacent oil passage and ensures that the grease is pushed normally.

[0013] The embodiments of this utility model will be further described below with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a top view of the positioning disc of this utility model;

[0016] Figure 3 This is a perspective view of the hydraulic oil press of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the oil-scraping paddle of this utility model during oil scraping;

[0018] Wherein: 1- Lubrication pump body, 2- Oil cover, 3- Top cover, 4- Positioning plate, 5- Motor, 6- Oil press, 8- Oil passage hole, 9- Filter screen, 10- Receiving groove, 12- Center hole, 13- Mounting hole, 14- Bearing, 15- First reinforcing rib, 16- Second reinforcing rib, 17- Mounting part, 18- Oil press part, 19- Bending part; Detailed Implementation

[0019] like Figure 1 ,2 As shown, this embodiment provides a positioning plate for a filter screen lining a grease lubrication pump, including a lubrication pump body 1, an oil cover 2, a top cover 3, a positioning plate 4, a motor 5, and an oil press 6. The lubrication pump body 1 is detachably connected to the top cover 3 via the oil cover 2, and the positioning plate 4 is snapped between the lubrication pump body 1 and the oil cover 2. The motor 5 is installed inside the lubrication pump body 1, and the output shaft of the motor 5 passes through the positioning plate 4 and is connected to the oil press 6. The positioning plate 4 is provided with several oil passage holes 8. The oil press 6 pushes the grease above the positioning plate 4 toward the lubrication pump body 1. The positioning plate 4 is provided with a filter screen 9 at the oil passage holes 8, and the oil passage holes 8 and the filter screen 9 are combined to form a receiving groove 10 for accommodating impurities.

[0020] Combination Figure 2 As shown, in this embodiment, the positioning disk 4 is provided with a central hole 12 and a mounting hole 13. The output shaft of the motor 5 is rotatably connected to the positioning disk 4 through the bearing 14. The positioning disk 4 is threadedly connected to the lubrication pump body 1 through the mounting hole 13. The positioning disk 4 is provided with multiple first reinforcing ribs 15 distributed in the central hole 12, and second reinforcing ribs 16 distributed circumferentially in the central hole 12. The first reinforcing ribs 15 and the second reinforcing ribs 16 are staggered and form the oil passage hole 8. The positioning disk 4 is integrally injection molded on the basis of the filter screen 9.

[0021] Combination Figure 3 As shown, in this embodiment, the oil press 6 is provided with a mounting part 17, an oil press 18 and a bending part 19. The output shaft of the motor 5 is connected to the mounting part 17. The oil press 18 is parallel to and covers the surface of the positioning disk 4. The bending part 19 is inclined upward in the direction of rotation of the oil press 6.

[0022] Combination Figure 4 As shown, the working principle of this utility model is that the user can directly open the top cover 3 and pour the grease into the oil cover 2. The motor 5 drives the oil press 6 to rotate. The inclined design of the bending part 19 helps to collect the grease and squeeze it towards the oil passage 8, so that the oil pressure in the oil passage 8 increases instantaneously. The oil press 18 covers the surface of the positioning plate 4 in parallel, effectively preventing the grease from flowing back into the adjacent oil passage 8. This ensures that the grease in the oil cover 2 passes through the oil passage 8 and is pressed into the lubrication pump body 1, and then squeezed out from the oil outlet of the lubrication pump body 1. Since the positioning plate 4 is equipped with a filter screen 9, impurities in the grease are filtered out by the filter screen 9 and the impurities are temporarily retained in the receiving groove 10, thereby preventing impurities from clogging the oil outlet pipe 7 and ensuring the smooth operation of the lubrication pump.

[0023] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A positioning disc applied to the filter screen of a grease lubrication pump, comprising a lubrication pump body (1), an oil cover (2), a top cover (3), a positioning disc (4), a motor (5) and an oil pressing paddle (6), the lubrication pump body (1) is detachably connected with the top cover (3) through the oil cover (2), and the positioning disc (4) is clamped between the lubrication pump body (1) and the oil cover (2), the motor (5) is arranged in the lubrication pump body (1), and the output shaft of the motor (5) is connected with the oil pressing paddle (6) through the positioning disc (4), the positioning disc (4) is provided with a plurality of oil passing holes (8), and the oil above the positioning disc (4) is pushed towards the lubrication pump body (1) through the oil pressing paddle (6), characterized in that, The positioning disc (4) is provided with a filter screen (9) at the oil passage hole (8), and the oil passage hole (8) and the filter screen (9) combine to form a containing groove (10) for containing impurities.

2. The positioning disc for the filter screen of the oil lubrication pump according to claim 1, characterized in that: The positioning disc (4) is provided with multiple rings of oil passage holes (8) distributed in a circle from inside to outside.

3. The positioning disc for the filter screen of the oil lubrication pump according to claim 2, characterized in that: The positioning disc (4) is provided with a center hole (12) and a mounting hole (13), the output shaft of the motor (5) is rotatably connected to the positioning disc (4) through a bearing, and the positioning disc (4) is threadedly connected to the lubricating pump body (1) through the mounting hole (13).

4. The positioning disc for the filter screen of the oil lubrication pump according to claim 3, characterized in that: The positioning disc (4) is provided with multiple rings of first reinforcing ribs (15) concentrically distributed with the center hole (12), and multiple rings of second reinforcing ribs (16) circumferentially distributed with the center hole (12), the first reinforcing ribs (15) and the second reinforcing ribs (16) are alternately distributed and form the oil passage holes (8).

5. The positioning disc for the filter screen of the oil lubrication pump and pressure line according to any one of claims 1-4, characterized in that: The positioning disc (4) is integrally injection molded on the basis of the filter screen (9).

6. The positioning disc for the filter screen of the oil lubrication pump according to claim 1, characterized in that: The oil pressing paddle (6) is provided with a mounting portion (17), an oil pressing portion (18) and a bending portion (19), the output shaft of the motor (5) is connected to the mounting portion (17), the oil pressing portion (18) is parallel to and covers the surface of the positioning disc (4), and the bending portion (19) is inclined upward in the direction in which the oil pressing paddle (6) rotates.