Filter element structure and filter thereof

Abstract

The utility model discloses a filter element structure and a filter thereof, which belong to the technical field of air compressor filters, the filter element structure comprises a plurality of filter units which can be spliced, each filter unit consists of a support body, a filter body sleeved on the support body, and a male head and a female head which are arranged at two ends of the support body; an air inlet is formed in the bottom of the male head and forms a filter cavity together with the female head and the filter body; the adjacent filtering units realize communication of the filtering cavities through insertion connection of the male heads and the female heads, so that a modular expansion structure is formed; an air hole and an elastic sealing mechanism are arranged in the middle of the female head, the sealing cover is triggered to be opened and closed through a push rod on the male head, and automatic switching between single-machine sealing and multi-stage communication is achieved; the supporting body adopts supporting rods in an annular array to connect the male head and the female head, so that the filter body is prevented from being pressed and deformed. According to the utility model, different filter sizes are flexibly adapted through modular splicing, the elastic sealing mechanism guarantees the sealing reliability of single-stage or multi-stage working conditions, the supporting structure improves the overall stability, and the filtering area is convenient to expand.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor filter technical field, concretely relates to a filter core structure and filter thereof. BACKGROUND

[0002] The filter core of the filter used by the existing air compressor adopts a fixed structure design, and a filter core with a corresponding size is usually customized according to the size of the filter, so that filter cores with different specifications need to be customized for different application scenarios, thereby increasing production cost and inventory management difficulty. The traditional filter core realizes gas purification through an integral filter layer, but cannot flexibly expand the filtering area according to actual needs. In addition, some splicable filter cores rely on external sealing elements when being connected, which leads to complex assembly and insufficient sealing reliability, and air leakage problems are prone to occur in the unconnected state. Therefore, a modular, expandable and sealing adaptive filter core structure is urgently needed to improve the universality and stability of the filter. SUMMARY

[0003] In view of the above technical deficiencies, the utility model aims to provide a filter core structure and filter thereof, which can realize series connection and stacking of multiple filtering units through modular filter core design, and flexibly adjust the number of filter cores used.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a filter core structure and filter thereof, which comprises multiple filtering units, each filtering unit comprises a support body and a filter body sleeved on the support body, a female head and a male head are arranged at the top and bottom of the support body respectively, an air inlet is arranged at the bottom of the male head, the male head, the female head and the filter body surround a filter cavity, gas to be filtered enters the filter cavity from the male head and is filtered by the filter body before being discharged, and two adjacent filtering units are connected by the filter cavity through the insertion of the male head and the female head.

[0005] Preferably, a through air hole is arranged in the middle of the female head, and an elastic sealing mechanism for sealing the air hole is arranged at the lower end of the female head.

[0006] Preferably, the elastic sealing mechanism comprises:

[0007] a limiting cylinder, which covers the air hole from the bottom of the female head;

[0008] a cover, which is movably installed in the limiting cylinder;

[0009] a spring, which is arranged in the inner cavity of the limiting cylinder and is used for plugging the air hole with the cover.

[0010] Preferably, a tapered surface is arranged at one end of the air hole close to the cover, and one end of the cover close to the air hole is tapered.

[0011] Preferably, a limiting groove is arranged on the conical surface, and a sealing ring is arranged in the limiting groove.

[0012] Preferably, a plurality of through holes are arranged on the circumferential side wall of the limiting cylinder.

[0013] Preferably, a push rod is fixed on the male head, and when the male head is inserted into the female head, the push rod pushes the cover compression spring, so that the air hole is communicated with the filtering cavity through the through hole.

[0014] Preferably, a first mounting groove is arranged at the lower end of the female head, a second mounting groove is arranged at the upper end of the male head, and the two ends of the filter body are respectively inserted into the first mounting groove and the second mounting groove.

[0015] Preferably, the support body comprises a plurality of support rods, and the two ends of the support rods are respectively fixedly connected with the male head and the female head.

[0016] A filter comprises the filter core structure.

[0017] The filter core structure has the advantages that:

[0018] The filter unit can be connected in sequence, the top and bottom of each filter unit are respectively provided with a female head and a male head, when the male head is inserted into the female head and fixedly connected, the filtering cavities of the two filter units can be communicated, so that the filtering area is increased, and the filter unit can be spliced at will according to the size of the designed filter, and it is not necessary to design each filter model separately; the elastic sealing mechanism can make the cover abut against the conical surface of the air hole edge by relying on the elasticity of the spring when the female head is not connected with the male head, the female head is closed, and the single filter unit can also be normally filtered; the support body comprises a plurality of support rods, the female head and the male head are connected through the support rods, overall support is provided, and the filter body is prevented from being deformed under pressure when the male head is inserted into the female head. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 A perspective view of a filter core structure according to an embodiment of the present application is shown.

[0021] Figure 2 A front view of a filter core structure according to an embodiment of the present application is shown.

[0022] Figure 3 This is a schematic diagram of the structure of the support body, female head, and male head of this utility model.

[0023] Figure 4 This is a top view of a filter element structure provided in an embodiment of the present utility model.

[0024] Figure 5 for Figure 4 Sectional view at point AA.

[0025] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0026] Figure 7 This is a schematic diagram showing the connection between the two filter units in this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Support body, 2. Filter body, 3. Female head, 4. Male head, 5. Air inlet, 6. Filter chamber, 7. Air hole, 8. Limiting cylinder, 9. Cover, 10. Spring, 11. Conical surface, 12. Sealing ring, 13. Through hole, 14. Push rod, 15. First mounting groove, 16. Second mounting groove, 17. Support rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1:

[0031] like Figures 1 to 7 As shown, Embodiment 1 of this utility model provides a filter element structure, including multiple filter units that can be connected in series. Each filter unit consists of a support body 1, a filter body 2, a male connector 4, and a female connector 3. The support body 1 consists of four circumferentially distributed support rods 17, with both ends of the support rods 17 fixedly connected to the male connector 4 and the female connector 3, forming a rigid frame to withstand the insertion pressure and prevent the filter body 2 from deforming under pressure. The filter body 2 is cylindrical and has multiple filter layers. The upper and lower ends of the filter body 2 are respectively inserted into the first mounting groove 15 at the lower end of the female connector 3 and the second mounting groove 16 at the upper end of the male connector 4, and are secured by two retaining rings respectively embedded in the first mounting groove 15 and the second mounting groove 16, ensuring a tight fit between the filter body 2 and the male connector 4 and the female connector 3. Figure 7As shown, the male head 4 is provided with threads at the bottom, and the female head 3 is also provided with threads, and the male head 4 and the female head 3 are connected by threads to realize the insertion of the male head 4 and the female head 3.

[0032] The bottom of the male head 4 is provided with an air inlet 5, and the female head 3 is provided with a through air hole 7, and the male head 4, the female head 3 and the filter body 2 jointly form a filter cavity 6. When the male head 4 of the filter unit is inserted into the female head 3 of the adjacent filter unit, the filter cavities 6 of the two are communicated through the air inlet 5 and the air hole 7, so that the gas to be filtered can enter the filter cavity 6 of the upper filter unit through the air inlet 5 and the air hole 7, so that the two filter units can filter at the same time, and the female head 3 of the uppermost filter unit can be closed by the end cover.

[0033] The utility model discloses a modularized splicing filter unit, which can flexibly expand the filtering area and adapt to the filtering requirements of different sizes.

[0034] Embodiment two:

[0035] On the basis of embodiment one, the utility model provides embodiment two, and the sealing structure of the female head 3 is further optimized in this embodiment two. The lower end of the air hole 7 of the female head 3 is provided with an elastic sealing mechanism, including a limiting cylinder 8, a cover 9 and a spring 10. Among them, the limiting cylinder 8 covers the air hole 7 from the bottom of the female head 3, and a plurality of through holes 13 are formed in the side wall thereof;The top of the cover 9 is conical, and the spring 10 arranged in the limiting cylinder 8 is pressed on the conical surface 11 inside the air hole 7, a limiting groove is formed at the conical surface 11 and a sealing ring 12 is embedded to enhance the air tightness.

[0036] When the male head 4 is not inserted, the spring 10 pushes the cover 9 to move in the limiting cylinder 8 and abuts against the sealing ring 12, thereby closing the air hole 7, so that the single filter unit can work independently. The push rod 14 is fixed on the male head 4, and the bottom end of the push rod 14 extends out of the air inlet 5. When the male head 4 and the female head 3 are inserted, the push rod 14 pushes the cover 9 and compresses the spring 10, so that the air inlet 5 of the upper filter unit can be communicated with the filter cavity 6 of the lower filter unit through the air hole 7 and the through hole 13, realizing the gas flow when multiple units are connected.

[0037] Through the above arrangement, the filter unit of the utility model can ensure the sealing of single machine use and ensure the automatic conduction when multiple units are connected, and improve the assembly efficiency.

[0038] Embodiment three:

[0039] On the basis of embodiment one and embodiment two, the utility model discloses a filter still, in addition to containing the conventional cylinder, end cover, air inlet pipe and air outlet pipe, its cylinder is filtered with the filter unit in the above using. When using, gas enters the cylinder from the air inlet pipe and enters the filter cavity 6 from the male head 4 of the filter unit of the lowermost layer, is filtered after passing through the filter body 2 on multiple filter units, and is discharged from the air outlet pipe, realize the filtration to the gas.

[0040] The user can increase or decrease the number of filter units according to the purification requirement, without replacing the overall structure, and the use cost is greatly reduced.

[0041] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A filter cartridge construction characterized by, The application relates to a filter core structure, which comprises a plurality of filter units, each of which comprises a supporting body (1) and a filter body (2) sleeved on the supporting body (1), the top and bottom of the supporting body (1) are respectively provided with a female head (3) and a male head (4), the bottom of the male head (4) is provided with an air inlet (5), the male head (4), the female head (3) and the filter body (2) surround a filter cavity (6), and two adjacent filter units are connected through the filter cavity (6) through the insertion of the male head (4) and the female head (3).

2. A filter cartridge construction as defined in claim 1, wherein, A through air hole (7) is formed in the middle of the female head (3), and an elastic sealing mechanism for sealing the air hole (7) is arranged at the lower end of the female head (3), when the male head (4) is inserted into the female head (3), the elastic sealing mechanism loses the sealing function.

3. A filter cartridge construction as claimed in claim 2 wherein, The elastic sealing mechanism comprises: A limiting cylinder (8) covers the air hole (7) from the bottom of the female head (3); A cover (9) is movably arranged in the limiting cylinder (8); A spring (10) is arranged in the inner cavity of the limiting cylinder (8) and used for sealing the air hole (7) by the cover (9).

4. A filter cartridge construction as claimed in claim 3 wherein, A tapered surface (11) is arranged at one end of the air hole (7) close to the cover (9), and the end of the cover (9) close to the air hole (7) is tapered.

5. A filter cartridge construction as claimed in claim 4 wherein, A limiting groove is formed in the tapered surface (11), and a sealing ring (12) is arranged in the limiting groove.

6. A filter cartridge construction as defined in claim 3 wherein, A plurality of through holes (13) are formed in the circumferential side wall of the limiting cylinder (8).

7. A filter cartridge construction as claimed in claim 6 wherein, A push rod (14) is fixed on the male head (4), when the male head (4) is inserted into the female head (3), the push rod (14) pushes the cover (9) to compress the spring (10), so that the air hole (7) is communicated with the filter cavity (6) through the through holes (13).

8. A filter cartridge construction as defined in claim 1 wherein, A first mounting groove (15) is formed in the lower end of the female head (3), a second mounting groove (16) is formed in the upper end of the male head (4), and the two ends of the filter body (2) are respectively inserted into the first mounting groove (15) and the second mounting groove (16).

9. A filter cartridge construction as defined in claim 1 wherein, The supporting body (1) comprises a plurality of supporting rods (17), and the two ends of the supporting rods (17) are respectively fixedly connected with the male head (4) and the female head (3).

10. A filter characterized by, The filter core structure comprises the filter core structure according to any one of claims 1-9. The application relates to a filter core structure, which comprises a plurality of filter units, each of which comprises a supporting body (1) and a filter body (2) sleeved on the supporting body (1), the top and bottom of the supporting body (1) are respectively provided with a female head (3) and a male head (4), the bottom of the male head (4) is provided with an air inlet (5), the male head (4), the female head (3) and the filter body (2) surround a filter cavity (6), and two adjacent filter units are connected through the filter cavity (6) through the insertion of the male head (4) and the female head (3). A through air hole (7) is formed in the middle of the female head (3), and an elastic sealing mechanism for sealing the air hole (7) is arranged at the lower end of the female head (3), when the male head (4) is inserted into the female head (3), the elastic sealing mechanism loses the sealing function. The elastic sealing mechanism comprises: A limiting cylinder (8) covers the air hole (7) from the bottom of the female head (3); A cover (9) is movably arranged in the limiting cylinder (8); A spring (10) is arranged in the inner cavity of the limiting cylinder (8) and used for sealing the air hole (7) by the cover (9). A tapered surface (11) is arranged at one end of the air hole (7) close to the cover (9), and the end of the cover (9) close to the air hole (7) is tapered. A limiting groove is formed in the tapered surface (11), and a sealing ring (12) is arranged in the limiting groove. A plurality of through holes (13) are formed in the circumferential side wall of the limiting cylinder (8). A push rod (14) is fixed on the male head (4), when the male head (4) is inserted into the female head (3), the push rod (14) pushes the cover (9) to compress the spring (10), so that the air hole (7) is communicated with the filter cavity (6) through the through holes (13). A first mounting groove (15) is formed in the lower end of the female head (3), a second mounting groove (16) is formed in the upper end of the male head (4), and the two ends of the filter body (2) are respectively inserted into the first mounting groove (15) and the second mounting groove (16). The supporting body (1) comprises a plurality of supporting rods (17), and the two ends of the supporting rods (17) are respectively fixedly connected with the male head (4) and the female head (3). The filter core structure comprises the filter core structure according to any one of claims 1-9.

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