High-stability hydraulic oil filter

Abstract

The utility model discloses a high-stability hydraulic oil filter. The other cover plate is provided with a sealing gasket; the cover plate provided with the bypass valve is provided with a positioning seat; the positioning seat is provided with a positioning groove; one side, facing the cover plate, of the positioning seat is provided with an input hole, the input hole is communicated with the bypass valve; the supporting protrusions extend outwards, part of the supporting protrusions penetrate to the outer side of the cover body, the ends, away from the cover plate, of the supporting protrusions are provided with arc-shaped abutting edges, the supporting protrusions are distributed in the circumferential direction, guide-in holes are formed between the adjacent supporting protrusions, and the guide-in holes are communicated with the input hole. The situation that unfiltered hydraulic oil enters follow-up equipment is avoided, the service life of the equipment can be effectively prolonged, the size of the leading-in hole is stable, the flow speed of the hydraulic oil during bypass can be guaranteed, and the oil supply efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil filters, and more specifically, to a highly stable hydraulic oil filter. Background Art

[0002] After the existing hydraulic oil filter is installed, a compression spring is installed, and then a cover plate is installed, and bolts are tightened for fixation to complete the assembly. The hydraulic oil filter is pressed in place by the restoring force of the spring to prevent it from moving. However, the hydraulic oil pressure is high, and the equipment vibrates during operation, causing some hydraulic oil to enter the subsequent equipment without being filtered. The unfiltered hydraulic oil will carry some impurities and particles, shortening the service life of hydraulic parts.

[0003] When the spring is tightened, the gap between the springs is small. When the bypass valve at the end of the hydraulic oil filter needs to be opened, the hydraulic oil flow efficiency is low, the oil supply efficiency is low, and the service life of the hydraulic equipment is shortened; when the spring is loose, the gap between the springs is large, the restoring force of the spring is small, and the position stability of the hydraulic oil filter is low. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a highly stable hydraulic oil filter to solve the above technical problems.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: A highly stable hydraulic oil filter includes a filter cartridge and cover plates arranged at both ends of the filter cartridge. The filter cartridge is hollow, and several through holes are provided on the side of the filter cartridge. The center of the cover plate has a mounting hole. A filter screen is arranged outside the filter cartridge, and the filter screen is connected to the cover plate. A bypass valve is provided on the mounting hole of any one of the cover plates, a sealing gasket is provided on the other cover plate, a positioning seat is provided on the cover plate where the bypass valve is arranged, a positioning groove is provided on the side of the positioning seat facing away from the cover plate, an input hole is provided on the side of the positioning seat facing the cover plate, the input hole is communicated with the bypass valve, a support protrusion protruding outward is provided on the side of the positioning seat, the support protrusion extends outward, and part of the support protrusion penetrates to the outside of the cover body. An arc-shaped contact edge is provided at the end of the support protrusion away from the cover plate. There are several support protrusions, and the support protrusions are distributed circumferentially. An introduction hole is provided between adjacent support protrusions, and the introduction hole is communicated with the input hole.

[0006] As a further improvement of the utility model, the positioning groove is provided in a penetrating manner and is communicated with the input hole.

[0007] As a further improvement of the utility model, a strengthening protrusion is provided between adjacent support protrusions, the strengthening protrusions are distributed circumferentially, and a through hole is provided between adjacent strengthening protrusions.

[0008] As a further improvement of the utility model, the reinforcing protrusion is completely located inside the cover plate.

[0009] As a further improvement of the utility model, an arc-shaped reinforcing edge is provided at one end of the reinforcing protrusion away from the cover plate.

[0010] As a further improvement of the utility model, the part of the supporting protrusion that penetrates through the cover plate is the penetrating part, and a diversion protrusion extending towards the cover plate is provided on the side of the penetrating part facing the cover plate.

[0011] As a further improvement of the utility model, the positioning seat, the supporting protrusion, and the reinforcing protrusion are integrally injection-molded.

[0012] The beneficial effects of the utility model are as follows: After the hydraulic oil filter is installed, its position is stable without play, avoiding the situation that unfiltered hydraulic oil enters subsequent equipment, effectively extending the service life of the equipment. The size of the inlet hole is stable, which can ensure the flow rate of hydraulic oil during bypass and guarantee the oil supply efficiency. Description of the Drawings

[0013] Figure 1 It is a schematic cross-sectional structure diagram of one side of the utility model;

[0014] Figure 2 It is a schematic cross-sectional structure diagram of the other side of the utility model;

[0015] Figure 3 It is a schematic top view structure diagram of the utility model;

[0016] Figure 4 It is a schematic partial connection structure diagram of the cover plate and the positioning seat.

[0017] Marking description: 1. Filter cartridge; 2. Cover plate; 3. Filter screen; 4. Bypass valve; 5. Positioning seat; 51. Positioning groove; 52. Input hole; 53. Supporting protrusion; 531. Contact edge; 54. Inlet hole; 55. Reinforcing protrusion; 551. Reinforcing edge; 56. Through hole; 6. Penetrating part; 61. Diversion protrusion; 7. Connecting part; 71. Sealing groove; 72. Sealing ring. Detailed Description of the Invention

[0018] The following will further describe the present utility model in detail with reference to the embodiments shown in the drawings.

[0019] Refer to Figures 1 - 4As shown in the figure, the high-stability hydraulic oil filter of this embodiment includes a filter cartridge 1 and cover plates 2 provided at both ends of the filter cartridge 1. The filter cartridge 1 is hollow, and several through holes are provided on the side of the filter cartridge 1. The center of the cover plate 2 has a mounting hole. A filter screen 3 is provided outside the filter cartridge 1, and the filter screen 3 is connected to the cover plate 2. A bypass valve 4 is provided on the mounting hole of any cover plate 2, and a gasket is provided on the other cover plate 2. A positioning seat 5 is provided on the cover plate 2 where the bypass valve 4 is provided. A positioning groove 51 is provided on the side of the positioning seat 5 facing away from the cover plate 2, and an input hole 52 is provided on the side of the positioning seat 5 facing the cover plate 2. The input hole 52 is communicated with the bypass valve 4. A support protrusion 53 protruding outward is provided on the side of the positioning seat 5. The support protrusion 53 extends outward, and part of the support protrusion 53 penetrates to the outside of the cover body. An arc-shaped contact edge 531 is provided at the end of the support protrusion 53 away from the cover plate 2. There are several support protrusions 53, and the support protrusions 53 are circumferentially distributed. An introduction hole 54 is provided between adjacent support protrusions 53, and the introduction hole 54 is communicated with the input hole 52.

[0020] Through the above technical solution, when the high-stability hydraulic oil filter of the present application is installed, the positioning groove 51 on the positioning seat 5 is connected to the positioning post on the outer shell of the hydraulic oil filter. The connection method is that the positioning post is inserted into the positioning groove 51, and the contact edge 531 of the support protrusion 53 is attached to the arc-shaped shell, fixing the positioning seat 5 from multiple angles, making the position of the positioning seat 5 stable. The positioning seat 5 is snap-fitted and fixed with the cover plate 2, and the position of the positioning seat 5 is stable (specifically, the positioning seat 5 has a connecting portion 7 protruding towards the cover plate 2, and a sealing groove 71 is provided on the connecting portion 7, and a sealing ring 72 is provided in the sealing groove 71), then the position of the cover plate 2 is stable, and the position of the hydraulic oil filter is stable without play, avoiding the situation that unfiltered hydraulic oil enters the subsequent equipment, and can effectively extend the service life of the equipment. And when the hydraulic oil needs to pass through the bypass valve 4, the hydraulic oil enters from the introduction hole 54, then enters the input hole 52, and supplies oil to the subsequent equipment through the bypass valve 4. The size of the introduction hole 54 is stable, avoiding the situation that the spring is fixed by the pressing spring and the gap between the springs is small, and can ensure the flow rate of the hydraulic oil during bypass and ensure the oil supply efficiency.

[0021] As a specific improvement embodiment, the positioning groove 51 is provided through and communicated with the input hole 52.

[0022] Through the above technical solution, the positioning groove 51 is provided through and communicated with the input hole 52, which is convenient for integral injection molding and can be more closely combined with the outer shell outside the hydraulic oil filter.

[0023] As a specific improvement embodiment, a reinforcing protrusion 55 is provided between adjacent support protrusions 53. The reinforcing protrusions 55 are circumferentially distributed, and a through hole 56 is provided between adjacent reinforcing protrusions 55.

[0024] Through the above technical solution, the reinforcing protrusion 55 enhances the structural strength of the positioning seat 5. When bypass is required, the hydraulic oil enters the input hole 52 after passing through the through hole 56 and then passes through the bypass valve 4.

[0025] As a specific implementation of the improvement, the reinforcing protrusion 55 is completely located inside the cover plate 2.

[0026] Through the above technical solution, the reinforcing protrusion 55 is completely located inside the cover plate 2, so that there is sufficient clearance between the housing outside the filter and the reinforcing protrusion 55 for the hydraulic oil to pass through, and the flow efficiency of the hydraulic oil is high.

[0027] As a specific implementation of the improvement, an arc-shaped reinforcing edge 551 is provided at one end of the reinforcing protrusion 55 away from the cover plate 2.

[0028] Through the above technical solution, the arc-shaped reinforcing edge 551 abuts against the housing outside the hydraulic oil, expanding the contact area between the positioning seat 5 and the external housing, thereby improving the stability of the position of the positioning seat 5 and further avoiding the situation of the hydraulic oil filter shaking during operation.

[0029] As a specific implementation of the improvement, the part of the support protrusion 53 passing through the cover plate 2 is the passing-out part 6, and a diversion protrusion 61 extending towards the cover plate 2 is provided on the side of the passing-out part 6 facing the cover plate 2.

[0030] Through the above technical solution, the inner side of the diversion protrusion 61 abuts against the cover plate 2, and the outer side abuts against the housing, restricting and fixing the filter from multiple angles on the side, further improving the stability after the positioning seat 5 is connected to the cover plate 2.

[0031] As a specific implementation of the improvement, the positioning seat 5, the support protrusion 53, and the reinforcing protrusion 55 are integrally injection-molded.

[0032] Through the above technical solution, the positioning seat 5, the support protrusion 53, and the reinforcing protrusion 55 are integrally injection-molded, with high structural strength, high stability, and long service life.

[0033] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A high-stability hydraulic oil filter, comprising a filter cartridge (1) and cover plates (2) arranged at both ends of the filter cartridge (1), wherein the filter cartridge (1) is hollow and a plurality of through holes are arranged on the side of the filter cartridge (1), wherein the center of the cover plate (2) has a mounting hole, a filter screen (3) is arranged on the outside of the filter cartridge (1), and the filter screen (3) is connected to the cover plate (2), a bypass valve (4) is arranged on the mounting hole of any cover plate (2), and a sealing gasket is arranged on the other cover plate (2), characterized in that: A positioning seat (5) is provided on the cover plate (2) on which the bypass valve (4) is arranged. A positioning groove (51) is provided on the side of the positioning seat (5) facing away from the cover plate (2). An input hole (52) is provided on the side of the positioning seat (5) facing the cover plate (2). The input hole (52) is communicated with the bypass valve (4). A supporting protrusion (53) protruding outward is provided on the side edge of the positioning seat (5). The supporting protrusion (53) extends outward, and part of the supporting protrusion (53) passes through the outside of the cover body. An arc-shaped abutment edge (531) is provided on one end of the supporting protrusion (53) away from the cover plate (2). There are a plurality of supporting protrusions (53) distributed circumferentially. An introduction hole (54) is provided between adjacent supporting protrusions (53). The introduction hole (54) is communicated with the input hole (52).

2. The high stability hydraulic oil filter according to claim 1, characterized in that: The positioning groove (51) is arranged through and communicates with the input hole (52).

3. The high stability hydraulic oil filter according to claim 1, characterized in that: Reinforcement protrusions (55) are provided between adjacent support protrusions (53), the reinforcement protrusions (55) are distributed around the circumference, and through holes (56) are provided between adjacent reinforcement protrusions (55).

4. The high stability hydraulic oil filter according to claim 3 is characterized in that: The reinforcing protrusion (55) is completely located inside the cover plate (2).

5. The high stability hydraulic oil filter according to claim 3, characterized in that: An arc-shaped reinforcement edge (551) is provided at one end of the reinforcement protrusion (55) away from the cover plate (2).

6. The high stability hydraulic oil filter according to claim 1, characterized in that: The portion of the support protrusion (53) that passes through the cover plate (2) is a passing portion (6), and a flow guide protrusion (61) extending toward the cover plate (2) is provided on a side of the passing portion (6) that faces the cover plate (2).

7. The high stability hydraulic oil filter according to claim 3, characterized in that: The positioning seat (5), the supporting protrusion (53) and the reinforcing protrusion (55) are integrally injection-molded.

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