Sectional type particle catcher filtering structure

Abstract

The utility model discloses a sectional type particle catcher filtering structure, which relates to the technical field of particle catchers, and is characterized by comprising a mounting cylinder and three DPF filters, the three DPF filters are arranged in the mounting cylinder at intervals, the mounting cylinder comprises two end covers and two cylinder bodies, and the two end covers are arranged on the two cylinder bodies. Annular grooves are formed in the ends, close to each other, of the two end covers and the two barrels, connecting rings are arranged at the two ends of each DPF, positioning grooves are formed in the inner side walls of the annular grooves, cavities are formed in the connecting rings, springs are fixedly connected into the cavities, one ends of the springs abut against movable plates, and the movable plates abut against the two ends of each DPF. Positioning blocks are fixedly connected to the two ends of the movable plate, and a button is fixedly connected to the middle of the movable plate. The split type DPF filter has the technical effects that the split type mounting cylinder consisting of the two end covers and the two cylinder bodies is arranged, so that a certain stage of DPF filter can be independently disassembled and replaced during later maintenance, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of particle trap, concretely is sectional type particle trap filter structure. BACKGROUND

[0002] The particle trap is a kind of ceramic filter installed in the exhaust system of diesel engine, it can capture the particulate emission before entering the atmosphere.

[0003] The existing patent with the announcement number CN215057664U discloses a kind of multi-stage sectional type particle trap filter structure, the filter structure is sequentially from bottom to top DPF lower ring cover, third stage DPF filter, second stage DPF sealing plate, second stage DPF filter, first stage DPF filter and DPF upper ring cover, multiple reinforcing ribs are welded between the DPF lower ring cover and DPF upper ring cover and form a barrel structure;The first stage DPF filter is arranged at the top end inside the barrel structure, the upper end surface of the first stage DPF filter is tightly attached to the DPF upper ring cover, and the lower end surface is welded with the contact position of each reinforcing rib Limiting block;The second stage DPF filter is arranged at the middle section inside the barrel structure, the upper end surface of the second stage DPF filter is welded with the contact position of each reinforcing rib Limiting block, the lower end surface is welded with the contact position of each reinforcing rib Limiting block, the reinforcing rib on the side surface of the bottom of the second stage DPF filter is welded with second stage DPF sealing ring;The third stage DPF filter is arranged at the bottom end inside the barrel structure, the lower end surface of the third stage DPF filter is tightly attached to the DPF lower ring cover, and the upper end surface is welded with the contact position of each reinforcing rib Limiting block.

[0004] For the related technology in the above, the inventor finds that there is at least the following problem in the technology: the prior art adopts the way of multi-stage DPF filter to filter particles in sections, but when maintaining in later period, it is inconvenient to individually disassemble and replace the DPF filter of a certain stage, leading to high use cost.

[0005] Therefore, we propose a kind of sectional type particle trap filter structure. INVENTION CONTENTS

[0006] (One) technical problem solved

[0007] In view of the deficiencies of the prior art, the utility model provides sectional type particle trap filter structure, solves the problem that it is inconvenient to individually disassemble and replace the DPF filter of a certain stage when maintaining in later period, leading to high use cost.

[0008] (Two) technical scheme

[0009] To achieve the above object, the utility model provides the following technical scheme: Sectional type particle trap filter structure, including installation cylinder and three DPF filters, three DPF filters are arranged at intervals in the installation cylinder, the installation cylinder includes two end covers arranged at both ends and two cylinder bodies arranged between the two end covers, the end of two end covers and two cylinder bodies close to each other is all set up annular groove, two ends of three DPF filters are all set up the connecting ring that is suitable for annular groove;

[0010] The inner side wall of the annular groove is provided with a plurality of annularly distributed positioning grooves, the inside of the connecting ring is provided with a plurality of annularly distributed cavities, the inside of the cavity is fixedly connected with a spring, one end of the spring is abutted with a movable plate, both ends of the movable plate are fixedly connected with positioning blocks matched with the positioning grooves, and the middle of the movable plate is fixedly connected with a button.

[0011] Preferably, the median value of the filtering accuracy of the three DPF filters increases in turn.

[0012] Preferably, a guide block is arranged on the outer side wall of the connecting ring, and a guide groove matched with the guide block is arranged on the inner side wall of the annular groove.

[0013] Preferably, an inclined angle is arranged at the end of the positioning block away from the movable plate.

[0014] Preferably, a limiting rod is fixedly connected in the cavity, and the movable plate is slidably sleeved on the limiting rod.

[0015] Preferably, a sealing ring is abutted between the end of the connecting ring and the annular groove.

[0016] Preferably, a first sealing groove matched with the sealing ring is arranged at the end of the connecting ring.

[0017] Preferably, a second sealing groove matched with the sealing ring is arranged on the inner bottom wall of the annular groove.

[0018] (Three) beneficial effects

[0019] Compared with the prior art, the utility model provides a kind of, with following beneficial effects:

[0020] 1, the utility model discloses a split type installation cylinder composed of two end covers and two cylinder bodies, three DPF filters can be independently installed in the installation cylinder, during later maintenance, the DPF filter of a stage can be individually disassembled and replaced, to reduce use cost.

[0021] 2, the utility model discloses a positioning groove, spring, movable plate, locating block and button are set, after connecting ring is completely inserted into annular groove, spring will push movable plate sliding, make movable plate drive locating block insert into positioning groove, fix connecting ring in annular groove, the installation of DPF filter is convenient, when maintaining in later period, just press button, through movable plate drive locating block and remove from positioning groove, can detach DPF filter, and the dismounting replacement of DPF filter is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the whole structure schematic diagram of the utility model;

[0023] Figure 2 It is the split structure schematic diagram of DPF filter and cylinder of the utility model;

[0024] Figure 3 It is the section structure schematic diagram of the utility model;

[0025] Figure 4 It is the utility model Figure 3 It is the structure enlarged view of A in the utility model.

[0026] In the drawing:

[0027] 1, install cylinder;11, end cover;12, cylinder;13, annular groove;14, positioning groove;15, guide groove;16, second sealing groove;

[0028] 2, DPF filter;21, connecting ring;22, spring;23, movable plate;24, locating block;25, button;26, guide block;27, limit rod;28, sealing ring;29, first sealing groove. DETAILED DESCRIPTION

[0029] In the utility model, under the condition of not making opposite statement, the orientation such as "up, down" used is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction;Similarly, for the convenience of understanding and description, "left, right" is usually for the left, right shown in the drawing;"In, out" refers to the in, out of the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0030] The utility model provides a kind of technical scheme:

[0031] Please refer to Figures 1 to 4, the segmented particle trap filter structure comprises a mounting cylinder 1 and three DPF filters 2, the three DPF filters 2 are arranged at intervals in the mounting cylinder 1, the median values of filtering accuracy of the three DPF filters 2 are sequentially increased, and are 70 mu m, 50 mu m and 30 mu m respectively, and by arranging the three DPF filters 2, multi-stage segmented filtering can be realized. The mounting cylinder 1 comprises two end covers 11 arranged at two ends and two cylinder bodies 12 arranged between the two end covers 11, and the two end covers 11 and the two cylinder bodies 12 are both provided with annular grooves 13 at one end close to each other, and the two ends of the three DPF filters 2 are both provided with connecting rings 21 matched with the annular grooves 13, and by arranging the split mounting cylinder 1 composed of the two end covers 11 and the two cylinder bodies 12, when the DPF filter 2 is installed, the connecting rings 21 at the two ends of the DPF filter 2 can be respectively inserted into the adjacent annular grooves 13.

[0032] Further, the outer side wall of the connecting ring 21 is provided with a guide block 26, and the inner side wall of the annular groove 13 is provided with a guide groove 15 matched with the guide block 26, and by arranging the guide block 26 and the guide groove 15, when the connecting ring 21 is inserted, the guide block 26 can be aligned with the guide groove 15 and slid into, so that the connecting ring 21 can be guided, and the correct insertion of the connecting ring 21 is facilitated.

[0033] Referring to Figure 2 and Figure 4 , the inner side wall of the annular groove 13 is provided with a plurality of annularly distributed positioning grooves 14, the inside of the connecting ring 21 is provided with a plurality of annularly distributed cavities, the inside of the cavity is fixedly connected with a spring 22, one end of the spring 22 abuts against a movable plate 23, both ends of the movable plate 23 are fixedly connected with positioning blocks 24 matched with the positioning grooves 14, one end of the positioning block 24 away from the movable plate 23 is provided with an inclined angle, and the middle part of the movable plate 23 is fixedly connected with a button 25, and by arranging the positioning groove 14, the spring 22, the movable plate 23, the positioning block 24 and the button 25, after the connecting ring 21 is completely inserted into the annular groove 13, the spring 22 will push the movable plate 23 to slide, so that the movable plate 23 drives the positioning block 24 to insert into the positioning groove 14, the connecting ring 21 is fixed in the annular groove 13, the installation of the DPF filter 2 is facilitated, and when the DPF filter 2 is maintained in the later period, the DPF filter 2 can be removed only by pressing the button 25 and moving the positioning block 24 out of the positioning groove 14 through the movable plate 23, so that the disassembly and replacement of the DPF filter 2 are facilitated.

[0034] Further, the inside of the cavity is fixedly connected with a limiting rod 27, and the movable plate 23 is slidingly sleeved on the limiting rod 27, and by arranging the limiting rod 27, the limiting rod 27 can limit the movable plate 23, and the stability of the movable plate 23 can be improved.

[0035] Further, the end of the connecting ring 21 abuts against a sealing ring 28, the end of the connecting ring 21 is provided with a first sealing groove 29 matched with the sealing ring 28, and the inner bottom wall of the annular groove 13 is provided with a second sealing groove 16 matched with the sealing ring 28, the sealing ring 28, the first sealing groove 29 and the second sealing groove 16 can seal the installation gap of the DPF filter 2, and the sealing performance of the DPF filter 2 after installation is improved.

[0036] In use, the working principle of the utility model is as follows:

[0037] Firstly, when the DPF filter 2 is installed, the connecting rings 21 at both ends of the DPF filter 2 are respectively inserted into the adjacent annular grooves 13, when the connecting rings 21 are inserted, the guide blocks 26 are aligned with the guide grooves 15 and are slid in, so that the connecting rings 21 are guided, and the correct insertion of the connecting rings 21 is facilitated.

[0038] After the connecting rings 21 are completely inserted into the annular grooves 13, the springs 22 push the movable plates 23 to slide, the movable plates 23 drive the positioning blocks 24 to be inserted into the positioning grooves 14, the connecting rings 21 are fixed in the annular grooves 13, and the installation of the DPF filter 2 is facilitated.

[0039] In later maintenance, the DPF filter 2 can be disassembled only by pressing the button 25 and moving the positioning blocks 24 out of the positioning grooves 14 by the movable plates 23, and the disassembly and replacement of the DPF filter 2 are facilitated.

[0040] In summary, the sectional particle trap filter structure is provided with the split mounting cylinder 1 composed of the two end covers 11 and the two cylinder bodies 12, in later maintenance, the DPF filter 2 of a certain stage can be individually disassembled and replaced, and the use cost is reduced.

[0041] The above is only a specific embodiment of the utility model, but the technical features of the utility model are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the utility model to solve the basically same technical problem and realize the basically same technical effect is covered in the protection range of the utility model.

Claims

1. A segmented particle trap filter structure comprising a mounting cylinder (1) and three DPF filters (2), characterized in that: Three DPF filters (2) are arranged in the mounting cylinder (1) at intervals, the mounting cylinder (1) comprises two end covers (11) arranged at two ends and two cylinder bodies (12) arranged between the two end covers (11), and the end close to each other of the two end covers (11) and the two cylinder bodies (12) is provided with an annular groove (13), and the two ends of the three DPF filters (2) are provided with connecting rings (21) matched with the annular grooves (13); A plurality of annularly distributed positioning grooves (14) are arranged on the inner side wall of the annular groove (13), a plurality of annularly distributed cavities are arranged in the connecting ring (21), springs (22) are fixedly connected in the cavities, the one end of the spring (22) is abutted with a movable plate (23), the two ends of the movable plate (23) are fixedly connected with positioning blocks (24) matched with the positioning grooves (14), and the middle part of the movable plate (23) is fixedly connected with a button (25).

2. The segmented particulate trap filter structure of claim 1, wherein: The median value of the filtering precision of the three DPF filters (2) increases in turn.

3. The segmented particle-trap filter structure of claim 1, wherein: A guide block (26) is arranged on the outer side wall of the connecting ring (21), and a guide groove (15) matched with the guide block (26) is arranged on the inner side wall of the annular groove (13).

4. The segmented particulate trap filter structure of claim 1, wherein: An inclined angle is arranged on the end of the positioning block (24) away from the movable plate (23).

5. The segmented particle-trap filter structure of claim 1, wherein: A limiting rod (27) is fixedly connected in the cavity, and the movable plate (23) is slidingly sleeved on the limiting rod (27).

6. The segmented particle-trap filter structure of claim 1, wherein: A sealing ring (28) is abutted between the end of the connecting ring (21) and the annular groove (13).

7. The segmented particle-trap filter structure of claim 6, wherein: A first sealing groove (29) matched with the sealing ring (28) is arranged on the end of the connecting ring (21).

8. The segmented particle-trap filter structure of claim 6, wherein: A second sealing groove (16) matched with the sealing ring (28) is arranged on the inner bottom wall of the annular groove (13).

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