Mounting structure of fracture-free tooth filter paper in suction filter

Abstract

A mounting structure of fracture-free tooth filter paper in a suction filter comprises an upper shell, a lower shell and tooth folding filter paper, a filter containing cavity is formed between the upper shell and the lower shell after the upper shell and the lower shell are in butt joint, an annular boss is arranged on the inner wall of the lower shell in a protruding mode towards the interior of the filter containing cavity, and the periphery of the lower surface of the tooth folding filter paper is in lap joint with the annular boss. First convex teeth are arranged on the annular boss; a first convex tooth is arranged on the inner wall of the upper shell, a second convex tooth is arranged on the inner wall of the upper shell, the first convex tooth and the second convex tooth vertically correspond to each other and clamp the two sides of tooth folding filter paper, transverse skirt edges are integrally arranged at the two ends of the tooth folding filter paper, strip-shaped pressing plates are pressed on the upper surfaces of the transverse skirt edges, and the transverse skirt edges are clamped between the strip-shaped pressing plates and the annular boss; the first convex teeth and the second convex teeth which are used for clamping the tooth folding filter paper are integrally arranged on the upper shell and the lower shell respectively, so that the number of parts is reduced, the assembly complexity is reduced, the structural consistency is improved, production and assembly are facilitated, the cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a suction filter, in particular to an installation structure of a non-fractured tooth filter paper in the suction filter. Background Art

[0002] A suction filter refers to a device that uses vacuum to make the liquid in a fluid pass through a filter paper to separate solid particles in the fluid. A filter cavity is formed inside the suction filter, and a filter paper is installed in the filter cavity. To facilitate the replacement of the filter paper and reduce resource waste, the publication number CN218106998U discloses an installation structure of a folded tooth filter paper for a transmission suction filter that can be disassembled and assembled repeatedly. By splitting the installation frame fixedly connected to the filter paper into an annular boss and a fixing frame, and integrally setting the annular boss on the lower housing, the fixing frame is detachably installed on the annular boss, and the folded tooth filter paper is clamped by the annular boss and the fixing frame, thereby realizing the disassembly and assembly of the folded tooth filter paper. The simplified installation structure of the folded tooth filter paper has low cost and can be reused. With market competition, it is necessary to further reduce production costs and improve assembly efficiency. Content of the Utility Model

[0003] To meet the requirements in the prior art, the utility model provides an installation structure of a non-fractured tooth filter paper in a suction filter.

[0004] An installation structure of a non-fractured tooth filter paper in a suction filter includes an upper housing, a lower housing, and a folded tooth filter paper. After the upper housing and the lower housing are butted, a filter cavity is formed between them. An annular boss protrudes into the filter cavity on the inner wall of the lower housing. The periphery of the lower surface of the folded tooth filter paper is lapped on the annular boss. At the positions corresponding to the folding tooth grooves of the folded tooth filter paper on the annular boss, first convex teeth matching the folding tooth grooves are integrally provided; at the positions corresponding to the folding tooth grooves on the inner wall of the upper housing, second convex teeth matching the folding tooth grooves are integrally provided. The first convex teeth and the second convex teeth correspond up and down and are respectively abutted in their corresponding folding tooth grooves. Both ends of the folded tooth filter paper are integrally provided with transverse skirts. The transverse skirts are lapped on the annular boss. A strip-shaped pressing plate is pressed on the upper surface of the transverse skirts. The transverse skirts are clamped between the strip-shaped pressing plate and the annular boss.

[0005] Further: A sealing glue is applied between the first convex teeth and the folded tooth filter paper.

[0006] Further: The outer side surface of the first convex tooth is attached to and integrally connected with the side wall surface of the lower housing.

[0007] Further: An oil inlet cavity is formed among the annular boss, the folded tooth filter paper, and the lower housing. An oil inlet is opened on the bottom wall of the lower housing. The oil inlet is communicated with the oil inlet cavity.

[0008] Further: The oil inlet corresponds to the middle part of the folded tooth filter paper.

[0009] Furthermore, an oil outlet nozzle is provided at the end of the upper housing, and the oil outlet nozzle is a quick-connect fitting.

[0010] Furthermore, the oil outlet nozzle is located on the side wall of the upper housing, and the outer end port of the oil outlet nozzle faces the side of the upper housing.

[0011] Furthermore, the oil outlet nozzle is located at the left end of the upper housing, and a leg is fixedly connected to the lower part of the left end of the lower housing. The leg is used to support the left end of the lower housing to a set height.

[0012] Furthermore, a fixed ear plate is fixedly connected to the right end of the upper housing.

[0013] Furthermore, both the upper housing and the lower housing are made of plastic.

[0014] The beneficial effects of the present utility model: By integrally providing the first convex teeth and the second convex teeth for clamping the folded tooth filter paper on the upper housing and the lower housing respectively, the number of parts is reduced, the assembly complexity is lowered, and at the same time, the problem of tolerance accumulation caused by the cooperation of multiple components is avoided, the structural consistency is improved, and it is convenient for production and assembly, thereby reducing costs and improving production efficiency. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a first cross-sectional structural diagram of the present utility model;

[0017] Figure 3 is a second cross-sectional structural diagram of the present utility model. Detailed Description of the Embodiment

[0018] The following will describe the present utility model in detail with reference to the drawings. The following describes the embodiments of the present utility model in detail. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model. The orientation terms such as left, middle, right, upper, and lower in the embodiments of the present utility model are only relative concepts to each other or are referenced based on the normal use state of the product, and should not be considered as restrictive.

[0019] An installation structure of a non-fractured tooth filter paper in a suction filter, as Figure 1 and Figure 2As shown, it includes an upper housing 1, a lower housing 2 and a corrugated filter paper 4. After the upper housing 1 and the lower housing 2 are butted, a filtering cavity is formed between them. An annular boss 24 protrudes inward from the inner wall of the lower housing 2 into the filtering cavity. The periphery of the lower surface of the corrugated filter paper 4 is lapped on the annular boss 24. At the positions corresponding to the corrugated grooves of the corrugated filter paper 4 on the annular boss 24, first convex teeth 23 matching the corrugated grooves are integrally provided; at the positions corresponding to the corrugated grooves on the inner wall of the upper housing 1, second convex teeth 13 matching the corrugated grooves are integrally provided. The first convex teeth 23 and the second convex teeth 13 are vertically corresponding and respectively abut against the corresponding corrugated grooves, combined with Figure 3 As shown, transverse skirts 41 are integrally provided at both ends of the corrugated filter paper 4. The transverse skirts 41 are lapped on the annular boss 24. A strip-shaped pressing plate 3 is pressed on the upper surface of the transverse skirts 41. The transverse skirts 41 are clamped between the strip-shaped pressing plate 3 and the annular boss 24. The strip-shaped pressing plate 3 is fixedly connected to the annular boss 24 by screws; an oil inlet cavity is formed between the annular boss 24, the corrugated filter paper 4 and the lower housing 2. An oil inlet 22 is opened on the bottom wall of the lower housing 2. The oil inlet 22 is communicated with the oil inlet cavity; the oil inlet 22 corresponds to the middle part of the corrugated filter paper 4. The integrated upper housing 1 and lower housing 2 provide uniform support for the corrugated filter paper 4, avoiding local stress concentration caused by vibration or pressure fluctuation of the traditional skeleton and prolonging the service life of the corrugated filter paper 4; the distribution of the corrugated filter paper 4 is more uniform, optimizing the fluid passing performance and improving the filtration efficiency. In addition, the first convex teeth 23 and the second convex teeth 13 can be integrally provided on the lower housing 2 and the upper housing 1 respectively by injection molding or die casting, which can significantly reduce the leakage risk and ensure the reliability of the filtration system under high-pressure and high-temperature working conditions; and can simplify the production process, shorten the assembly working hours, and reduce the mold development and processing costs due to the simplified structure. The upper housing 1 and the lower housing 2 are both made of plastic materials. The first convex teeth 23, the second convex teeth 13, the upper housing 1 and the lower housing 2 are all made of engineering plastics, avoiding the use of traditional metal fixing frames, which can further reduce the weight, conform to the lightweight trend of the automotive industry, and indirectly improve the fuel economy.

[0020] Among them, to improve the sealing performance between the annular boss 24 and the corrugated filter paper 4, a sealing glue is applied between the first convex teeth 23 and the corrugated filter paper 4; for the convenience of production and to ensure the structural stability, the outer side surface of the first convex teeth 23 is attached to and integrally connected with the side wall surface of the lower housing 2. The upper and lower housings directly support the corrugated filter paper 4 to form an integrated module, enhancing the structural compactness and reducing the connection points and potential leakage paths, especially suitable for the gearbox environment with limited space.

[0021] In addition, an oil outlet nozzle 11 is provided at the end of the upper housing 1. The oil outlet nozzle 11 is a quick-connect fitting. The oil outlet nozzle 11 is located on the side wall of the upper housing 1, and the outer end port of the oil outlet nozzle 11 faces the side of the upper housing 1. The oil outlet nozzle 11 is located at the left end of the upper housing 1. A support leg 21 is fixedly connected to the lower part of the left end of the lower housing 2. The support leg 21 is used to support the left end of the lower housing 2 at a set height, so as to facilitate the external connection of a pipeline to the oil outlet nozzle 11 and facilitate the oil inlet at the oil inlet 22. A fixed ear plate 12 is fixedly connected to the right end of the upper housing 1.

[0022] During operation, the corrugated filter paper 4 is clamped and fixedly connected between the upper housing 1 and the annular boss 24 through the first convex tooth 23 and the second convex tooth 13. An oil inlet cavity is formed between the corrugated filter paper 4 and the lower housing 2, and an oil outlet cavity is formed between the corrugated filter paper 4 and the upper housing 1. The oil enters the oil suction filter from the oil inlet 22, and then the oil flows out from the oil outlet nozzle 11 after passing through the oil inlet cavity, the corrugated filter paper 4, and the oil outlet cavity in sequence.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An installation structure of a fracture-free tooth filter paper in a suction filter, comprising an upper shell, a lower shell and a folded tooth filter paper. After the upper shell and the lower shell are butted, a filtering cavity is formed between the two. An annular boss is convexly provided on the inner wall of the lower shell towards the filtering cavity. The periphery of the lower surface of the folded tooth filter paper is lapped on the annular boss, and first convex teeth matching the folding tooth grooves are integrally provided at positions corresponding to the folding tooth grooves of the folded tooth filter paper on the annular boss; characterized in that: On the inner wall of the upper housing, second convex teeth matching the folding alveolar grooves are integrally provided at positions corresponding to the folding alveolar grooves. The first convex teeth and the second convex teeth are vertically corresponding and respectively abut against the corresponding folding alveolar grooves. Both ends of the folded tooth filter paper are integrally provided with transverse skirts, and the transverse skirts are lapped on the annular convex platform. A strip-shaped pressing plate is pressed on the upper surface of the transverse skirt, and the transverse skirt is clamped between the strip-shaped pressing plate and the annular convex platform.

2. The installation structure of the non-fracture dental filter paper in the suction filter according to claim 1, characterized in that: Sealant is applied between the first convex teeth and the folded tooth filter paper.

3. The installation structure of the fracture-free dental filter paper in the suction filter according to claim 1, characterized in that: The outer side surface of the first convex teeth is attached to and integrally connected with the side wall surface of the lower housing.

4. The installation structure of the non-fractured dental filter paper in the suction filter according to claim 1, characterized in that: An oil inlet cavity is formed among the annular convex platform, the folded tooth filter paper and the lower housing. An oil inlet is opened on the bottom wall of the lower housing, and the oil inlet is communicated with the oil inlet cavity.

5. The installation structure of the fracture-free dental filter paper in the suction filter according to claim 4, characterized in that: The oil inlet corresponds to the middle part of the folded tooth filter paper.

6. The installation structure of the non-fractured dental filter paper in the suction filter according to claim 1, characterized in that: An oil outlet nozzle is provided at the end of the upper housing, and the oil outlet nozzle is a quick-insert connector.

7. The installation structure of the non-fractured dental filter paper in the suction filter according to claim 6, characterized in that: The oil outlet nozzle is located on the side wall of the upper housing, and the outer end port of the oil outlet nozzle faces the side of the upper housing.

8. The installation structure of the non-fractured dental filter paper in the suction filter according to claim 7, characterized in that: The oil outlet nozzle is located at the left end of the upper housing. A support leg is fixedly connected to the lower part of the left end of the lower housing, and the support leg is used to support the left end of the lower housing at a set height.

9. The installation structure of the non-fractured dental filter paper in the suction filter according to claim 8, characterized in that: A fixed ear plate is fixedly connected to the right end of the upper housing.

10. The installation structure of the fracture-free dental filter paper in the suction filter according to claim 1, characterized in that: Both the upper housing and the lower housing are made of plastic material.

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