An auxiliary filtration device for an oil pump

Abstract

This utility model discloses an auxiliary filtration device for an oil pump, comprising a housing and a filter assembly disposed inside the housing. A discharge pipe is provided on one side of the housing, and a feed pipe is threadedly connected to the other side of the housing. The bottom and top walls of the housing are respectively provided with snap-fit ​​seats inclined at a 45-degree angle, and each snap-fit ​​seat has a snap-fit ​​groove on its opposite side. A square sealing hole corresponding to the two snap-fit ​​seats is opened on the side wall of the housing. The filter assembly includes a filter plate movably inserted into the two snap-fit ​​grooves. One side of the filter plate is fixed to the bottom end of a pressing plate. A rubber sealing ring adapted to the inner wall of the square sealing hole is provided on the outer wall of the pressing plate, with an interference fit between the outer wall of the rubber sealing ring and the inner wall of the square sealing hole. This utility model can perform secondary impurity removal from the oil and allows for easy disassembly and cleaning of the filter screen and filter plate.

Description

Technical Field

[0001] This utility model relates to the field of oil pump technology, and in particular to an auxiliary filtration device for oil pumps. Background Technology

[0002] Oil pumps are commonly used in lubrication systems. The function of an oil pump is to increase the oil pressure to a certain level and force it to be delivered to the moving surfaces of various engine parts. It is a component used to force oil supply to various friction surfaces, so it is very important to ensure that the oil entering the oil pump is clean and free of impurities.

[0003] Traditional automotive oil pumps do not have a filtration device. Impurities in the oil can easily enter the pump over time, causing internal blockages and damage. Traditional filtration devices also have filters that are difficult and inefficient to clean after prolonged use. Therefore, we propose an auxiliary filtration device for oil pumps. Utility Model Content

[0004] The problem this invention aims to solve is that existing oil pumps do not have a convenient and easy-to-clean filter.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an auxiliary filtration device for an oil pump, comprising a housing and a filter assembly disposed inside the housing. A discharge pipe is provided on one side of the housing, and a feed pipe is threadedly connected to the other side of the housing. The bottom and top walls of the housing are respectively provided with snap-fit ​​seats inclined at a 45-degree angle. Each of the two snap-fit ​​seats has a snap-fit ​​groove on its opposite side. A square sealing hole corresponding to the two snap-fit ​​seats is opened on the side wall of the housing. The filter assembly includes a filter plate movably inserted into the two snap-fit ​​grooves. One side of the filter plate is fixed to the bottom end of a pressing plate. A rubber sealing ring adapted to the inner wall of the square sealing hole is provided on the outer wall of the pressing plate, and the outer wall of the rubber sealing ring and the inner wall of the square sealing hole are interference-fitted.

[0006] As a preferred embodiment of the auxiliary filter device for an oil pump described in this utility model, the bottom wall of the housing has a square through hole on one side of the mounting base, an upward-opening feed box is provided on the outside of the square through hole, a ramp is provided inside the feed box, and a threaded hole is provided on the side wall of the feed box at a position corresponding to the bottom end of the ramp, and a screw plug is threaded into the threaded hole.

[0007] As a preferred embodiment of the auxiliary filter device for an oil pump described in this utility model, wherein: a first limiting frame and a second limiting frame with a U-shaped structure are respectively provided on both sides of the square sealing hole, a limiting post is slidably provided in the first limiting frame and the second limiting frame, and an inclined surface is provided on the upper and lower sides of one end of the limiting post.

[0008] As a preferred embodiment of the auxiliary filtration device for an oil pump described in this utility model, a filter screen is provided inside the feed pipe, the diameter of the sieve holes of the filter screen is larger than the diameter of the sieve holes on the filter plate, and a sealing ring is provided at the inlet of the feed pipe.

[0009] In a preferred embodiment of the auxiliary filter device for an oil pump described in this utility model, a pull handle is provided on the outside of the pressing plate.

[0010] In a preferred embodiment of the auxiliary filter device for an oil pump described in this utility model, a baffle is provided on the top wall of the housing on one side of the mounting bracket.

[0011] The beneficial effects of this utility model are as follows: This utility model performs secondary impurity removal on the oil through the filter screen in the feed pipe and the filter plate in the filter assembly. When the filter screen in the feed pipe needs to be cleaned after long-term use, the feed pipe can be rotated to separate it from the box for cleaning. Pulling out the square sealing hole of the pressing plate can bring out the filter plate for cleaning. Since the filter plate is tilted in the box, the impurities filtered by the filter plate fall down under the action of gravity and the turbulence of the baffle plate and enter the feed box through the square through hole for collection. The screw plug can be unscrewed out of the threaded hole on the feed box periodically to clean the impurities. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0013] Figure 1 This is a schematic diagram of the overall structure of an auxiliary filter device for an oil pump.

[0014] Figure 2 This is a schematic diagram of the internal structure of an auxiliary filter device for an oil pump.

[0015] Figure 3 This is a schematic diagram of the internal structure of an auxiliary filter device for an oil pump after the filter components have been removed.

[0016] Figure 4 This is a schematic diagram of the structure of a filter plate, a pressing plate, and a rubber sealing ring in an auxiliary filter device for an oil pump.

[0017] Figure 5 This is a visual representation of an auxiliary filter device for an oil pump after the filter components have been removed.

[0018] Figure 6 This is a diagram showing the internal structure of the feed box in an auxiliary filter device for an oil pump. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Reference Figures 1-6 This embodiment is an auxiliary filtration device for an oil pump, including a housing 100 and a filter assembly 200 disposed inside the housing 100. A discharge pipe 101 is provided on one side of the housing 100, and a feed pipe 102 is threadedly connected to the other side of the housing 100. The bottom wall and top wall of the housing 100 are respectively provided with snap-fit ​​seats 103 inclined at a 45-degree angle. The opposite sides of the two snap-fit ​​seats 103 are respectively provided with snap-fit ​​grooves 103a. The side wall of the housing 100 is provided with square sealing holes 104 corresponding to the two snap-fit ​​seats 103. The filter assembly 200 includes a filter plate 201 movably inserted into the two snap-fit ​​grooves 103a. One side of the filter plate 201 is fixed to the bottom end of the pressing plate 202. The outer wall of the pressing plate 202 is provided with a rubber sealing ring 203 adapted to the inner wall of the square sealing hole 104. The outer wall of the rubber sealing ring 203 and the inner wall of the square sealing hole 104 are interference fit.

[0021] Connect the discharge pipe 101 to the oil pump inlet. Slide the filter plate 201 into the snap-fit ​​grooves 103a of the two snap-fit ​​seats 103. Since the outer wall of the pressing plate 202 is provided with a rubber sealing ring 203 that matches the inner wall of the square sealing hole 104, and the outer wall of the rubber sealing ring 203 and the inner wall of the square sealing hole 104 are interference fit, the rubber sealing ring 203 can seal the square sealing hole 104 by pressing the pressing plate 202. Since the two snap-fit ​​seats 103 are inclined, the filter plate 201 slidably inserted into the two snap-fit ​​grooves 103a is also inclined. Pass the feed pipe 102 into the oil body that needs to be filtered. When the oil body passes through the filter plate 201 for filtration, the impurities are blocked by the filter plate 201 and will slowly fall off under the action of gravity.

[0022] In this embodiment, a square through hole 105 is provided on the bottom wall of the housing 100 on one side of the card holder 103. An upward-opening feed box 204 is provided on the outside of the square through hole 105. A ramp 204a is provided inside the feed box 204. A threaded hole 204b is provided on the side wall of the feed box 204 at a position corresponding to the bottom end of the ramp 204a. A screw plug 204c is threaded into the threaded hole 204b.

[0023] Impurities blocked by the filter plate 201 will slowly fall off under the action of gravity and enter the feed box 204 through the square through hole 105 on one side of the snap-fit ​​seat 103 for collection. When too many impurities accumulate and need to be cleaned, rotate the screw plug 204c to separate the screw plug 204c from the threaded hole 204b, and the impurities will flow out through the threaded hole 204b along the ramp 204a.

[0024] In this embodiment, a first limiting frame 106 and a second limiting frame 106a with a U-shaped structure are respectively provided on both sides of the square sealing hole 104. A limiting post 106b is slidably provided inside the first limiting frame 106 and the second limiting frame 106a. An inclined surface 106c is provided on the upper and lower sides of one end of the limiting post 106b.

[0025] After the filter plate 201 is inserted into the two snap-fit ​​slots 103a by holding the pressing plate 202, the pressing plate 202 is pressed so that the rubber sealing ring 203 on the outside of the pressing plate 202 is press-fitted with the square sealing hole 104 for sealing. Then the limiting post 106b is slid so that the limiting post 106b passes through the first limiting frame 106 and the second limiting frame 106a. Since the limiting post 106b has inclined surfaces 106c on the upper and lower sides of one end, it is easier for the limiting post 106b to be inserted into the first limiting frame 106 to limit the rubber sealing ring 203 or the pressing plate 202, ensuring that the rubber sealing ring 203 is always press-fitted with the square sealing hole 104.

[0026] In this embodiment, a filter screen 102a is provided inside the feed pipe 102. The diameter of the sieve hole of the filter screen 102a is larger than the diameter of the sieve hole on the filter plate 201. A sealing ring 102b is provided at the opening of the feed pipe 102.

[0027] When the filter screen 102a inside the feed pipe 102 needs to be cleaned after long-term use, rotate the feed pipe 102 to disconnect the feed pipe 102 that is threaded to the housing 100. Then clean the filter screen 102a inside the feed pipe 102. After cleaning, reconnect it to the housing 100 by thread. The sealing ring 102b at the opening of the feed pipe 102 facilitates a sealed connection with the external oil supply pipeline.

[0028] In this embodiment, a lifting handle 202a is provided on the outside of the pressing plate 202.

[0029] When the filter plate 201 needs to be cleaned, remove the limiting post 106b located in the first limiting frame 106, and pull the pressing plate 202 out of the square sealing hole 104 by pulling the handle 202a. The pressing plate 202 will then bring the filter plate 201 out of the square sealing hole 104 as well. Then the filter plate 201 can be cleaned.

[0030] In this embodiment, a baffle 205 is provided on the top wall of the housing 100 on one side of the card holder 103.

[0031] When the oil flows, the baffle 205 agitates the oil, which helps to disturb the impurities adhering to the upper part of the filter plate 201, causing them to fall off under the action of gravity.

[0032] Working principle: Connect the discharge pipe 101 to the oil pump inlet. Hold the pressing plate 202 and insert the filter plate 201 into the two snap-fit ​​slots 103a. Press the pressing plate 202, causing the rubber sealing ring 203 on the outside of the pressing plate 202 to press against the square sealing hole 104 for an interference fit and seal. Then slide the limiting post 106b, allowing it to pass through the first limiting frame 106 and the second limiting frame 106a. Since the limiting post 106b has inclined surfaces 106c on both the upper and lower sides of one end, it facilitates smoother movement. Insert the first limiting frame 106 to limit the rubber sealing ring 203 or the pressing plate 202, ensuring that the rubber sealing ring 203 always has an interference fit with the square sealing hole 104. Then, pass the feed pipe 102 into the oil to be filtered. Impurities in the oil undergo two filtration processes: passing through the filter screen 102a in the feed pipe 102 and the filter plate 201 in the housing 100. Since the two snap-fit ​​seats 103 are inclined, the filter plate 201, which slides into the two snap-fit ​​slots 103a, is also inclined. When the oil passes through... When filtering through the filter plate 201, impurities are blocked by the filter plate 201 and will slowly fall off under the turbulence of the baffle plate 205 and gravity. The fallen impurities enter the feed box 204 through the square through hole 105 on one side of the snap-fit ​​seat 103 and are collected. When too many impurities accumulate and need to be cleaned, rotate the screw plug 204c to separate the screw plug 204c from the threaded hole 204b. The impurities flow out through the threaded hole 204b along the ramp 204a. When the filter screen 102a and filter plate 201 need to be cleaned after long-term use... Rotate the feed pipe 102 to disconnect the feed pipe 102 from the housing 100. Then clean the filter screen 102a inside the feed pipe 102. After cleaning, reconnect it to the housing 100. When it is necessary to clean the filter plate 201, remove the limiting post 106b located in the first limiting frame 106. Pull the pressing plate 202 out of the square sealing hole 104 by pulling the handle 202a. The pressing plate 202 will then bring the filter plate 201 out of the square sealing hole 104. Then clean the filter plate 201.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An auxiliary filtration device for an oil pump, characterized in that: The system includes a housing (100) and a filter assembly (200) disposed inside the housing (100). A discharge pipe (101) is provided on one side of the housing (100), and a feed pipe (102) is threadedly connected to the other side of the housing (100). The bottom and top walls of the housing (100) are respectively provided with snap-fit ​​seats (103) at a 45-degree angle. Each of the two snap-fit ​​seats (103) has a snap-fit ​​groove (103a) on its opposite side. The side walls of the housing (100) have openings for the two... The filter assembly (200) includes a filter plate (201) that is movably inserted into two snap-fit ​​grooves (103a). One side of the filter plate (201) is fixed to the bottom of the pressing plate (202). The outer wall of the pressing plate (202) is provided with a rubber sealing ring (203) that is adapted to the inner wall of the square sealing hole (104). The outer wall of the rubber sealing ring (203) and the inner wall of the square sealing hole (104) are interference fit.

2. The auxiliary filter device for an oil pump as described in claim 1, characterized in that: The bottom wall of the housing (100) is provided with a square through hole (105) on one side of the card seat (103). A feed box (204) with an upward opening is provided on the outside of the square through hole (105). A ramp (204a) is provided inside the feed box (204). A threaded hole (204b) is provided on the side wall of the feed box (204) at a position corresponding to the bottom end of the ramp (204a). A screw plug (204c) is threaded into the threaded hole (204b).

3. The auxiliary filter device for an oil pump as described in claim 1, characterized in that: The square sealing hole (104) is provided with a first limiting frame (106) and a second limiting frame (106a) of U-shaped structure on both sides. A limiting post (106b) is slidably provided in the first limiting frame (106) and the second limiting frame (106a). An inclined surface (106c) is provided on the upper and lower sides of one end of the limiting post (106b).

4. An auxiliary filter device for an oil pump as described in claim 1, characterized in that: A filter screen (102a) is provided inside the feed pipe (102). The diameter of the sieve hole of the filter screen (102a) is larger than the diameter of the sieve hole on the filter plate (201). A sealing ring (102b) is provided at the opening of the feed pipe (102).

5. An auxiliary filter device for an oil pump as described in claim 1, characterized in that: The pressing plate (202) is provided with a lifting handle (202a) on the outside.

6. An auxiliary filter device for an oil pump as described in claim 1, characterized in that: A spoiler (205) is provided on the top wall of the housing (100) on one side of the card holder (103).

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