Double-cylinder oil return pipeline filter

Abstract

The utility model relates to the technical field of filters, in particular to a double-cylinder oil return pipeline filter which comprises a first filter and a second filter, the first filter and the second filter are connected through a pipeline, a reversing valve is installed in the middle of the pipeline, and an oil inlet and an oil outlet are formed in the reversing valve. Filter elements are arranged in the first filter and the second filter, windows are arranged on the outer sides of the first filter and the second filter, covers are arranged at the top ends of the first filter and the second filter, and a first dismounting mechanism for conveniently dismounting the covers is arranged at the top end of the first filter; a second dismounting mechanism for conveniently dismounting the cover is arranged at the top end of the second filter, so that the problem that the filter needs to be replaced in time after the filter element is blocked in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a double-tube oil return pipeline filter. Background Art

[0002] The related technology application number is CN201420287331.3, which discloses that the filter includes a filter, a reversing valve and an oil port, wherein the filter includes a filter I and a filter II, wherein the oil port includes an oil inlet and an oil outlet, wherein the filter I and the filter II are connected by a pipeline, a reversing valve is arranged in the middle of the pipeline, flanges are arranged at both ends of the reversing valve, an oil inlet and an oil outlet are arranged at the lower end of the reversing valve, an oil inlet reversing valve is arranged at the outer end of the oil inlet, an oil outlet reversing valve is arranged at the outer end of the oil outlet, a bypass valve is arranged on the oil inlet, filter elements are arranged inside the filter I and the filter II, a filter element contamination blockage indicator is connected to the filter element, and windows are arranged on the outer sides of the filter I and the filter II;

[0003] Regarding the above technology, the inventors found that the filter element needs to be replaced in time after being blocked; in order to solve the above problem, we propose a double-tube oil return line filter. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The problem that the filter needs to be replaced in time after the filter element is blocked in the prior art is solved; in order to solve the above problem, a double-tube oil return pipeline filter is provided.

[0006] (II) Technical solution

[0007] A double-cylinder oil return pipeline filter comprises a first filter and a second filter. The first filter and the second filter are connected by a pipeline. A reversing valve is installed in the middle of the pipeline. The reversing valve is provided with an oil inlet and an oil outlet. Filter elements are provided inside the first filter and the second filter. Windows are provided on the outsides of the first filter and the second filter. Covers are provided at the top ends of the first filter and the second filter. A first disassembly mechanism for facilitating disassembly of the cover is provided at the top end of the first filter. A second disassembly mechanism for facilitating disassembly of the cover is provided at the top end of the second filter.

[0008] As a preferred technical solution, the first disassembly mechanism includes a circular ring bracket fixed on the top of the first filter, a circular ring groove is opened inside the circular ring bracket, and a plurality of arc blocks are evenly fixed inside the circular ring groove and along the axis line of the circular ring groove, and the arc surface of the arc block faces the cover, and a plurality of sliding rods are horizontally inserted on the side wall of the circular ring groove close to the cover, and a clamping block is fixed at one end of each sliding rod close to the cover, and the other end of the sliding rod is tightly attached to the surface of the corresponding arc block, and a reset spring is sleeved on each sliding rod and located between the circular ring bracket and the clamping block, and one end of the reset spring is fixedly connected to the side wall of the circular ring bracket, and the other end is fixedly connected to the side wall of the clamping block.

[0009] As a preferred technical solution, the clamping block is horizontally inserted into the side wall of the first filter, and a first inclined surface is formed at one end of the clamping block close to the cover, and a second inclined surface is formed at the outer circumferential surface of the cover, and the first inclined surface can be tightly attached to the second inclined surface.

[0010] As a preferred technical solution, a pair of mounting frames are fixed on the side walls of the circular ring bracket, each mounting frame is hinged with a mounting block, a screw rod is horizontally arranged between the two mounting frames, one end of the screw rod is rotatably connected to one of the mounting blocks, the other end of the screw rod passes through the other mounting block, and the screw rod is threadedly connected to the penetrated mounting block.

[0011] As a preferred technical solution, a handle is fixed on the top of the cover.

[0012] As a preferred technical solution, the structure of the second disassembly mechanism is consistent with that of the first disassembly mechanism.

[0013] As a preferred technical solution, the number of arc blocks is at least 3.

[0014] (III) Beneficial effects

[0015] The beneficial effects of the utility model are:

[0016] (1) When in use, the oil flows in from the oil inlet on the reversing valve, passes through the first filter and the second filter, and the filter element filters the impurities in the oil, and then the filtered oil flows out from the oil outlet. When the filter element needs to be replaced, the cover can be opened through the first disassembly mechanism and the second disassembly mechanism to replace the filter element;

[0017] (2) The circular bracket rotates counterclockwise to drive the arc block to rotate counterclockwise. A clamping block is fixed to the end of each slide rod close to the cover. The other end of the slide rod is in close contact with the surface of the corresponding arc block. The arc block rotates counterclockwise and cooperates with the reset spring. At this time, the reset spring is in a stretched state, so the reset spring drives the slide rod to move outward. The outward movement of the slide rod drives the clamping block to move outward. At this time, the clamping block no longer clamps the cover. Finally, open the cover to replace the filter element.

[0018] (3) By providing the first inclined surface and the second inclined surface, the clamping block can further clamp the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0022] 1-first filter; 2-second filter; 3-pipeline; 4-reversing valve; 5-oil inlet; 6-oil outlet; 7-cover; 8-first disassembly mechanism; 9-second disassembly mechanism; 10-circular bracket; 11-circular groove; 12-arc block; 13-sliding rod; 14-clamping block; 15-reset spring; 16-mounting frame; 17-screw; 18-handle; DETAILED DESCRIPTION

[0023] The double-tube oil return pipeline filter of the utility model is further described in conjunction with the accompanying drawings.

[0024] Combined with Figure 1-2 As shown, a double-cylinder return oil pipeline filter includes a first filter 1 and a second filter 2. The first filter 1 and the second filter 2 are connected by a pipeline 3. A reversing valve 4 is installed in the middle of the pipeline 3. The reversing valve 4 is provided with an oil inlet 5 and an oil outlet 6. Filter elements are provided inside the first filter 1 and the second filter 2. Windows are provided on the outsides of the first filter 1 and the second filter 2. Covers 7 are provided at the top ends of the first filter 1 and the second filter 2. A first disassembly mechanism 8 for facilitating disassembly of the cover 7 is provided at the top end of the first filter 1, and a second disassembly mechanism 9 for facilitating disassembly of the cover 7 is provided at the top end of the second filter 2.

[0025] It should be noted that when in use, the oil is allowed to flow in from the oil inlet 5 on the reversing valve 4, and the filter element filters the impurities in the oil through the first filter 1 and the second filter 2, and then the filtered oil flows out from the oil outlet 6. When the filter element needs to be replaced, the cover 7 is opened through the first disassembly mechanism 8 and the second disassembly mechanism 9 to replace the filter element.

[0026] Combined with Figure 2As shown, the first disassembly mechanism 8 includes a circular ring bracket 10 fixed on the top of the first filter 1, a circular ring groove 11 is opened inside the circular ring bracket 10, and a plurality of arc blocks 12 are evenly fixed inside the circular ring groove 11 and along the axis of the circular ring groove 11, and the arc surface of the arc block 12 faces the cover 7, and a plurality of sliding rods 13 are horizontally inserted on the side wall of the circular ring groove 11 close to the cover 7, and a clamping block 14 is fixed at one end of each sliding rod 13 close to the cover 7, and the other end of the sliding rod 13 is tightly attached to the surface of the corresponding arc block 12, and a reset spring 15 is sleeved on each sliding rod 13 and located between the circular ring bracket 10 and the clamping block 14, and one end of the reset spring 15 is fixedly connected to the side wall of the circular ring bracket 10, and the other end is fixedly connected to the side wall of the clamping block 14.

[0027] It should be noted that the counterclockwise rotation of the annular bracket 10 drives the arc block 12 to rotate counterclockwise, and a clamping block 14 is fixed to one end of each sliding rod 13 close to the cover 7. The other end of the sliding rod 13 is tightly attached to the surface of the corresponding arc block 12, and the arc block 12 rotates counterclockwise and cooperates with the reset spring 15. At this time, the reset spring 15 is in a stretched state, so the reset spring 15 drives the sliding rod 13 to move outward, and the outward movement of the sliding rod 13 drives the clamping block 14 to move outward. At this time, the clamping block 14 no longer clamps the cover 7, and finally the cover 7 can be opened to replace the filter element.

[0028] Combined with Figure 2 As shown, the clamping block 14 is horizontally inserted into the side wall of the first filter 1, and a first inclined surface is formed at one end of the clamping block 14 close to the cover 7, and a second inclined surface is formed at the outer circumferential surface of the cover 7, and the first inclined surface can be tightly attached to the second inclined surface.

[0029] It should be noted that, by providing the first inclined surface and the second inclined surface, the clamping block 14 can further clamp the cover 7 .

[0030] Combined with Figure 1-2 As shown, a pair of mounting frames 16 are fixed on the side wall of the annular bracket 10, each mounting frame 16 is hinged with a mounting block, a screw rod 17 is horizontally arranged between the two mounting frames 16, one end of the screw rod 17 is rotatably connected to one of the mounting blocks, the other end of the screw rod 17 passes through another mounting block, and the screw rod 17 is threadedly connected to the penetrating mounting block.

[0031] Combined with Figure 2 As shown, a handle 18 is fixed to the top of the cover 7 .

[0032] Furthermore, the structure of the second disassembly mechanism 9 is consistent with that of the first disassembly mechanism 8 .

[0033] Furthermore, the number of the arc blocks 12 is at least three.

[0034] Working principle:

[0035] When in use, the oil flows in from the oil inlet 5 on the reversing valve 4, passes through the first filter 1 and the second filter 2, and the filter element filters the impurities in the oil, and then the filtered oil flows out from the oil outlet 6. When the filter element needs to be replaced, the cover 7 is opened through the first disassembly mechanism 8 and the second disassembly mechanism 9 to replace the filter element;

[0036] The annular bracket 10 rotates counterclockwise to drive the arc block 12 to rotate counterclockwise, and a clamping block 14 is fixed to one end of each slide bar 13 close to the cover 7, and the other end of the slide bar 13 is in close contact with the surface of the corresponding arc block 12. The arc block 12 rotates counterclockwise and cooperates with the reset spring 15. At this time, the reset spring 15 is in a stretched state, so the reset spring 15 drives the slide bar 13 to move outward, and the slide bar 13 moves outward to drive the clamping block 14 to move outward. At this time, the clamping block 14 no longer clamps the cover 7, and finally the cover 7 can be opened to replace the filter element;

[0037] By providing the first inclined surface and the second inclined surface, the clamping block 14 can further clamp the cover 7 .

[0038] The above embodiments are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary personnel in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A double-tube oil return line filter, characterized in that: The invention comprises a first filter (1) and a second filter (2), wherein the first filter (1) and the second filter (2) are connected via a pipeline (3), a reversing valve (4) is installed in the middle of the pipeline (3), an oil inlet (5) and an oil outlet (6) are provided on the reversing valve (4), filter elements are provided inside the first filter (1) and the second filter (2), windows are provided on the outside of the first filter (1) and the second filter (2), covers (7) are provided at the top ends of the first filter (1) and the second filter (2), a first disassembly mechanism (8) for facilitating the disassembly of the cover (7) is provided at the top end of the first filter (1), and a second disassembly mechanism (9) for facilitating the disassembly of the cover (7) is provided at the top end of the second filter (2).

2. A double-tube oil return line filter according to claim 1, characterized in that: The first disassembly mechanism (8) comprises a circular bracket (10) fixed to the top of the first filter (1), a circular groove (11) is provided inside the circular bracket (10), a plurality of arc blocks (12) are evenly distributed and fixed inside the circular groove (11) and along the axis of the circular groove (11), the arc surface of the arc block (12) faces the cover (7), and a plurality of sliding rods (13) are horizontally inserted on the side wall of the circular groove (11) close to the cover (7). ), a clamping block (14) is fixed to one end of each slide rod (13) close to the cover (7), and the other end of the slide rod (13) is in close contact with the surface of the corresponding arc block (12), and a return spring (15) is sleeved on each slide rod (13) and located between the circular ring bracket (10) and the clamping block (14), and one end of the return spring (15) is fixedly connected to the side wall of the circular ring bracket (10), and the other end is fixedly connected to the side wall of the clamping block (14).

3. A double-tube oil return line filter according to claim 2, characterized in that: The clamping block (14) is horizontally inserted and arranged on the side wall of the first filter (1), and a first inclined surface is formed at one end of the clamping block (14) close to the cover (7), and a second inclined surface is formed at the outer circumferential surface of the cover (7), and the first inclined surface can be closely attached to the second inclined surface.

4. A double-tube oil return line filter according to claim 3, characterized in that: A pair of mounting frames (16) are fixed on the side walls of the circular bracket (10), each mounting frame (16) is hinged with a mounting block, a screw rod (17) is horizontally arranged between the two mounting frames (16), one end of the screw rod (17) is rotatably connected to one of the mounting blocks, the other end of the screw rod (17) passes through the other mounting block, and the screw rod (17) is threadedly connected to the penetrating mounting block.

5. A double-tube oil return line filter according to claim 4, characterized in that: A handle (18) is fixed to the top of the cover (7).

6. A double-tube oil return line filter according to claim 5, characterized in that: The structure of the second disassembly mechanism (9) is consistent with that of the first disassembly mechanism (8).

7. A double-tube oil return line filter according to claim 2, characterized in that: The number of the arc-shaped blocks (12) is at least 3.

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