Filtering type drying cylinder with high structural strength

Abstract

The utility model relates to a filtering type drying cylinder with high structural strength, which comprises an outer shell, an upper cover, an inner container shell, an inner container cover, a filtering piece and a spring, the upper cover is detachably connected with the outer shell, the inner container shell is arranged between the upper cover and the outer shell, the inner container shell is clamped with the inner container cover, the spring is arranged between the inner container cover and the upper cover, the filtering piece is arranged in the inner container shell, and the filtering piece is connected with the filtering piece. The shell is provided with an air outlet hole and an air inlet groove, the air outlet hole is communicated with the air inlet groove through a filter part, the shell is provided with a mounting part and reinforcing ribs, and the upper cover is in threaded connection with the shell through the mounting part; the utility model mainly aims to change the structure of the shell of the drying cylinder to enable the upper cover and the shell to be in threaded connection, so as to replace the traditional hemming connection process, facilitate the replacement of parts such as a filtering piece inside during maintenance and improve the convenience of maintenance, and the structural strength of the shell is improved through the reinforcing ribs, so that the service life of the drying cylinder is prolonged. And the phenomenon of air leakage when the drying cylinder is impacted is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air dryers, and particularly relates to a filter type drying cylinder with high structural strength. Background Art

[0002] The drying cylinder generally includes a cylinder outer shell, a valve body and an inner liner component. The inner liner component is arranged between the cylinder outer shell and the valve body and is connected to the air braking system through the valve body. The compressed gas generated during braking enters the inner liner component through the valve body and is filtered. The filtered dry gas is beneficial to vehicle braking. In order to seal the inner liner component, the cylinder outer shell of the traditional drying cylinder is usually connected to the valve body by a rolling process, which also makes the connection structure have low strength. When the cylinder outer shell is impacted, it is easy to deform and leak air, causing certain inconvenience. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the background art, the technical solution adopted by the utility model is: a filter type drying cylinder with high structural strength, which includes an outer shell, an upper cover, an inner liner shell, an inner liner cover, a filter element and a spring. The upper cover is detachably connected to the outer shell. An inner liner shell is arranged between the upper cover and the outer shell. The inner liner shell is clamped with an inner liner cover, and a spring is arranged between the inner liner cover and the upper cover. A filter element is arranged in the inner liner shell. The outer shell is provided with an air outlet hole and an air inlet groove, and the air outlet hole is communicated with the air inlet groove through the filter element. The outer shell is provided with a mounting part and a reinforcing rib, and the upper cover is threadedly connected to the outer shell through the mounting part.

[0004] By adopting the above technical solution, by changing the structure of the drying cylinder shell, the upper cover and the outer shell are connected by a threaded connection method, thus replacing the traditional crimping connection process, facilitating the replacement of internal components such as the filter element during maintenance, improving the convenience of maintenance, and the structural strength of the outer shell is improved by the reinforcing rib, reducing the phenomenon of air leakage when the drying cylinder is impacted, and reducing the failure rate.

[0005] The utility model is further set as follows: the upper cover is provided with a hexagonal boss and a guiding column, the inner liner cover is provided with a positioning part coaxially distributed with the guiding column, and the two ends of the spring are respectively sleeved on the guiding column and the positioning part.

[0006] Furthermore, the inner liner cover is provided with ventilation mesh holes around the positioning part. The positioning part includes an inner retaining block, an outer ring column, and triangular ribs circumferentially distributed around the outer ring column. The inner retaining block is circumferentially distributed in a ring shape with the axis of the outer ring column as the axis, and the spring is clamped between the inner retaining block and the outer ring column.

[0007] By adopting the above technical solution, a hexagonal boss is arranged on the top of the upper cover, which is convenient for positioning on the tooling to facilitate the disassembly and assembly of the drying cylinder. Through the positioning of the guiding column and the positioning part, the spring is prevented from being misaligned and inclined, improving the structural stability.

[0008] The present utility model is further configured such that the air inlet grooves are circumferentially distributed outside the air outlet holes. A counterbore is provided in the inner liner shell between the air outlet holes and the air inlet grooves, and a first sealing ring is provided in the counterbore. The outer shell is sealingly connected to the inner liner shell through the first sealing ring.

[0009] Furthermore, air permeation grooves are provided in a circumferential distribution on the inner side of the counterbore. The filtering member includes a molecular sieve, a filter element, and a protective cover. The molecular sieve is provided inside the inner liner shell. The air outlet holes are communicated with the molecular sieve through the air permeation grooves. The filter element is snap-connected between the inner liner shell and the outer shell through the protective cover, and the air inlet grooves are communicated with the filter element.

[0010] Furthermore, threaded holes are provided in a circumferential distribution in the mounting portion. A second sealing ring is provided inside the outer shell at the positions of the threaded holes. The upper cover is sealingly connected to the outer shell through the second sealing ring.

[0011] Furthermore, the reinforcing ribs are triangular, and the reinforcing ribs are circumferentially distributed on the outer shell. The threaded holes and the reinforcing ribs are staggeredly distributed.

[0012] By adopting the above technical solution, the first sealing ring prevents the air permeation grooves from directly communicating with the air outlet holes bypassing the filtering member, and the second sealing ring prevents air leakage from the joint between the upper cover and the outer shell, maintaining the overall airtightness of the drying cylinder.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By changing the structure of the drying cylinder housing, the upper cover and the outer shell are connected by a threaded connection method, thus replacing the traditional hemming connection process, facilitating the replacement of internal components such as the filtering member during maintenance, improving the convenience of maintenance, and the outer shell is provided with reinforcing ribs to improve the structural strength of the outer shell, reducing the phenomenon of air leakage when the drying cylinder is impacted, and reducing the failure rate.

[0015] The following further describes embodiments of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a sectional view of the present utility model;

[0018] Figure 3 is a perspective view of the inner liner cover in the present utility model;

[0019] Figure 4 In the present utility model Figure 2 is a partial enlarged view of the view in the A direction in;

[0020] Wherein: 1 - outer shell, 2 - upper cover, 3 - inner tank shell, 4 - inner tank cover, 5 - filter element, 6 - spring, 7 - first sealing ring, 8 - second sealing ring, 11 - air outlet hole, 12 - air inlet groove, 13 - mounting portion, 14 - reinforcing rib, 15 - counterbore, 16 - ventilation groove, 17 - threaded hole, 21 - hexagonal boss, 22 - guide post, 41 - positioning portion, 42 - ventilation mesh holes, 43 - inner stopper, 44 - outer ring column, 45 - triangular rib, 51 - molecular sieve, 52 - filter element, 53 - shield; Detailed implementation manner

[0021] As Figure 1 、 2 shown, this embodiment provides a filter - type drying cylinder with high structural strength, including an outer shell 1, an upper cover 2, an inner tank shell 3, an inner tank cover 4, a filter element 5 and a spring 6. The upper cover 2 is detachably connected to the outer shell 1. An inner tank shell 3 is provided between the upper cover 2 and the outer shell 1. The inner tank shell 3 is snap - connected with the inner tank cover 4, and a spring 6 is provided between the inner tank cover 4 and the upper cover 2. A filter element 5 is provided inside the inner tank shell 3. The outer shell 1 is provided with an air outlet hole 11 and an air inlet groove 12, and the air outlet hole 11 is communicated with the air inlet groove 12 through the filter element 5. The outer shell 1 is provided with a mounting portion 13 and a reinforcing rib 14. The upper cover 2 is thread - connected to the outer shell 1 through the mounting portion 13.

[0022] Combined with Figure 3 shown, in this embodiment, the upper cover 2 is provided with a hexagonal boss 21 and a guide post 22 for positioning. The inner tank cover 4 is provided with a positioning portion 41 coaxially distributed with the guide post 22. The two ends of the spring 6 are respectively sleeved on the guide post 22 and the positioning portion 41. The inner tank cover 4 is provided with ventilation mesh holes 42 around the positioning portion 41. The positioning portion 41 includes an inner stopper 43, an outer ring column 44, and triangular ribs 45 circumferentially distributed around the outer ring column 44. The inner stopper 43 is circumferentially distributed in a ring shape with the axis of the outer ring column 44 as the axis. The spring 6 is snap - connected between the inner stopper 43 and the outer ring column 44. A hexagonal boss 21 is provided on the top of the upper cover 2, which is convenient for positioning on the tooling to facilitate the disassembly and assembly of the drying cylinder. Through the positioning of the guide post 22 and the positioning portion 41, the spring 6 is prevented from being misaligned and tilted, improving the structural stability.

[0023] Combined with Figure 4As shown in the figure, in this embodiment, the air inlet grooves 12 are circumferentially distributed outside the air outlet holes 11. A counterbore 15 is provided in the inner tank shell 3 between the air outlet holes 11 and the air inlet grooves 12, and a first sealing ring 7 is provided in the counterbore 15. The outer shell 1 is sealingly connected to the inner tank shell 3 through the first sealing ring 7. Circumferentially distributed air permeable grooves 16 are provided inside the counterbore 15. The filter element 5 includes a molecular sieve 51, a filter element 52 and a protective cover 53. The molecular sieve 51 is arranged inside the inner tank shell 3. The air outlet holes 11 are communicated with the molecular sieve 51 through the air permeable grooves 16. The filter element 52 is clamped between the inner tank shell 3 and the outer shell 1 through the protective cover 53, and the air inlet grooves 12 are communicated with the filter element 52. Threaded holes 17 are circumferentially distributed in the mounting portion 13. A second sealing ring 8 is provided inside the outer shell 1 at the threaded holes 17. The upper cover 2 is sealingly connected to the outer shell 1 through the second sealing ring 8. The reinforcing ribs 14 are triangular, and the reinforcing ribs 14 are circumferentially distributed on the outer shell 1. The threaded holes 17 and the reinforcing ribs 14 are staggered.

[0024] The working principle of the present utility model is that the air brake system of the vehicle is connected to the outer shell 1. Compressed air enters from the air inlet grooves 12. The oil and dirt are filtered by the filter element 52 along the way, and the moisture is adsorbed by the molecular sieve 51, so that the dry air flows out from the air outlet holes 11, thus meeting the function of drying the air in the air brake system. By changing the structure of the drying cylinder shell, the upper cover 2 and the outer shell 1 are connected by a threaded connection method, thus replacing the traditional crimping connection process, facilitating the replacement of internal components such as the filter element 5 during maintenance, improving the convenience of maintenance, and the structural strength of the outer shell 1 is improved by the reinforcing ribs 14.

[0025] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A filter-drying cartridge with high structural strength, characterized in that: The invention comprises an outer shell (1), an upper cover (2), an inner shell (3), an inner shell cover (4), a filter element (5) and a spring (6); the upper cover (2) is detachably connected to the outer shell (1); an inner shell (3) is provided between the upper cover (2) and the outer shell (1); the inner shell (3) is clamped with the inner shell cover (4); a spring (6) is provided between the inner shell cover (4) and the upper cover (2); a filter element (5) is provided in the inner shell (3); the outer shell (1) is provided with an air outlet (11) and an air inlet groove (12); the air outlet (11) is connected to the air inlet groove (12) through the filter element (5); the outer shell (1) is provided with a mounting portion (13) and a reinforcing rib (14); the upper cover (2) is threadedly connected to the outer shell (1) through the mounting portion (13).

2. A filter-drying cartridge with high structural strength according to claim 1, characterized in that: The upper cover (2) is provided with a hexagonal boss (21) and a guide column (22), the inner container cover (4) is provided with a positioning portion (41) coaxially distributed with the guide column (22), and the two ends of the spring (6) are respectively sleeved on the guide column (22) and the positioning portion (41).

3. A filter-drying cartridge with high structural strength according to claim 2, characterized in that: The inner liner cover (4) is provided with air-permeable mesh holes (42) around the positioning portion (41); the positioning portion (41) comprises an inner stopper (43), an outer ring column (44), and triangular ribs (45) circumferentially distributed around the outer ring column (44); the inner stopper (43) is circumferentially distributed in a ring shape with the axis of the outer ring column (44) as the axis; and the spring (6) is clamped between the inner stopper (43) and the outer ring column (44).

4. A filter-drying cartridge with high structural strength according to claim 1, characterized in that: The air inlet groove (12) is circumferentially distributed outside the air outlet (11); the inner shell (3) is provided with a countersunk hole (15) between the air outlet (11) and the air inlet groove (12); a first sealing ring (7) is provided in the countersunk hole (15); and the outer shell (1) is sealedly connected to the inner shell (3) via the first sealing ring (7).

5. A filter-drying cartridge with high structural strength according to claim 4, characterized in that: The inner side of the countersunk hole (15) is provided with circumferentially distributed air permeable grooves (16); the filter element (5) comprises a molecular sieve (51), a filter element (52) and a protective cover (53); the molecular sieve (51) is arranged on the inner side of the inner shell (3); the air outlet (11) is connected to the molecular sieve (51) through the air permeable grooves (16); the filter element (52) is clamped between the inner shell (3) and the outer shell (1) through the protective cover (53); and the air inlet groove (12) is connected to the filter element (52).

6. A filter-drying cartridge with high structural strength according to claim 5, characterized in that: The mounting portion (13) is provided with threaded holes (17) distributed in a circumferential manner, the outer shell (1) is provided with a second sealing ring (8) located inside the threaded holes (17), and the upper cover (2) is sealedly connected to the outer shell (1) via the second sealing ring (8).

7. A filter-drying cartridge with high structural strength according to claim 6, characterized in that: The reinforcing ribs (14) are triangular in shape and are distributed circumferentially on the outer shell (1); the threaded holes (17) and the reinforcing ribs (14) are distributed in an alternating manner.

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