Gas drying device for automobile braking system

By improving the structure of the gas drying device in the automotive braking system, and adopting a design with a flange, upper cover, lower cover, and partition plate, the problem of powder entry caused by molecular sieve collisions was solved, achieving simplified design and high-efficiency filtration.

CN223846617UActive Publication Date: 2026-01-30HEFEI WAL FUEL SYST CO LTD +1
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Patent Information

Application Number
CN202520440482.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-01-30
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

The existing automotive braking system drying cylinder design is complex, and molecular sieve powder can easily enter the filter seat or intake system due to mutual collision, affecting safety.

Method used

It adopts a structure of flange, upper cover, lower cover and partition plate. The partition plate divides the storage area into multiple areas, reducing the risk of molecular sieve collision, and filters water, aerosol and oil through filter media.

Benefits of technology

Simplified design reduces costs, minimizes molecular sieve compression, prevents powder from entering the filter base or air intake system, and ensures filtration efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223846617U_ABST
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Abstract

The utility model discloses a gas drying device for an automobile braking system, which comprises a flange plate connected with a filter seat. The flange plate is installed at the upper end of the upper end cover, the upper end cover and the lower end cover define a storage area, the storage area is filled with a molecular sieve, a first filter material is welded to the upper portion of the inner side of the upper end cover, and a second filter material is arranged at the bottom of the inner side of the lower end cover; the partition plates divide the storage area into a plurality of areas, penetrating holes are evenly formed in the partition plates, and the partition plates are arranged between the first filter material and the second filter material. According to the utility model, the risk of mutual collision of molecular sieves is reduced, so that the problem that powder enters a filter seat or an air inlet system due to excessive extrusion is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the air treatment technical field of automobile brake system, specifically relates to a gas drying device for automobile brake system. BACKGROUND

[0002] For the design of using air brake system of commercial vehicle and tractor, using compressed air as brake medium, the brake is more rapid, the vehicle safety is better, and the maintenance cost is lower. The function of the drying cylinder is to protect the air path system, prolong the service life of the valve and rubber parts in the air path system, prevent the problem of freezing and blockage caused by water accumulation, especially in winter, without the protection of the drying cylinder, the water in the air path will gradually increase, which affects the brake performance. The drying cylinder can prevent the brake system from being disabled due to water icing and ensure the effectiveness of the brake. In addition, the drying cylinder can also filter dirt and impurities in the brake system to prevent pipe blockage and ensure normal operation of the system.

[0003] The drying cylinder on the market has a complex design structure, and the powder of the drying agent is easy to enter the filter seat or the air intake system due to mutual impact, which affects safety. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a gas drying device for automobile brake system, which reduces the risk of mutual collision of molecular sieves, thereby solving the problem of powder entering the filter seat or the air intake system due to excessive extrusion.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A gas drying device for automobile brake system, comprising:

[0007] A flange plate connected with a filter seat;

[0008] An upper end cover and a lower end cover, the flange plate is installed on the upper end of the upper end cover, the upper end cover and the lower end cover enclose a storage area, the storage area is filled with molecular sieves, a filter material one is welded on the upper part of the inner side of the upper end cover, and a filter material two is arranged on the bottom of the inner side of the lower end cover;

[0009] A partition plate, the partition plate divides the storage area into multiple areas, and the partition plate is uniformly provided with perforations, and the partition plate is arranged between the filter material one and the filter material two.

[0010] Preferably, the flange plate and the upper end cover, and the upper end cover and the lower end cover are connected by buckles respectively.

[0011] Preferably, the flange plate and the upper end cover, and the upper end cover and the lower end cover are connected by threads respectively.

[0012] Preferably, the upper end cover is sealed to the inner hole of the flange by an O-ring one, and the flange is sealed to the inside of the filter tank by an O-ring two.

[0013] Preferably, the flange and the filter canister are press-fitted onto the filter base by a large nut.

[0014] Preferably, a sponge is provided at the top inner side of the flange, a baffle is provided at the bottom lower end of the sponge, a spring is provided on the upper end cover, and the baffle is installed on the upper end of the spring.

[0015] Preferably, a sponge is provided on the inner bottom of the lower end cover.

[0016] Preferably, a baffle is provided at the upper end of the second sponge.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1) Simplify the design by changing the design of complex parts to a simpler one, thereby reducing costs.

[0019] 2) The risk of molecular sieves colliding with each other is reduced by the partition plate, thereby reducing the compression between molecular sieves. Furthermore, by setting filter media, the problem of powder entering the filter seat or air intake system is solved.

[0020] 3) By setting filter media, this utility model can filter not only water, but also aerosols and oil. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a gas drying device for an automotive braking system according to an embodiment of this utility model;

[0022] Figure 2 This is an exploded view of a gas drying device for an automotive braking system according to an embodiment of this utility model;

[0023] Figure 3 This is a front view of a gas drying device for an automotive braking system according to an embodiment of this utility model;

[0024] Figure 4 yes Figure 3 A cross-sectional view along the AA direction;

[0025] Figure 5 yes Figure 3 A cross-sectional view along the BB direction;

[0026] Figure 6 This is a schematic diagram of the structure of the partition plate in an embodiment of this utility model;

[0027] In the figure, 1, flange plate, 2, upper end cover, 3, lower end cover, 4, partition plate, 5, O-ring two, 6, buckle, 7, molecular sieve, 8, perforation, 9, sponge one, 10, baffle one, 11, spring, 12, baffle two, 13, sponge two, 14, filter material one, 15, filter material two, 16, O-ring one, 17, air outlet, 18, air inlet, 19, air inlet channel, 20, air outlet, 21, hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] Please refer to Figures 1-2 As shown in the figure, a gas drying device for automobile brake system is installed in the filter tank, specifically comprising a flange plate 1, an upper end cover 2, a lower end cover 3 and a partition plate 4. The flange plate 1 is used for connecting the filter seat, specifically, the flange plate 1 is pressed and assembled on the filter seat with the filter tank through a large nut, specifically, the flange plate 1 is sealed with the filter tank inside through O-ring two 5, so that the gas is sealed and not leaked. The structure of the flange plate 1 is as shown in the figure, a gas outlet 17 is arranged in the center, and a plurality of air inlets 18 are arranged on the upper end of the flange plate and outside the periphery of the gas outlet 17. A plurality of air inlet channels 19 are arranged on the outer wall of the upper end cover 2, and an air outlet 20 is arranged on the upper end of the upper end cover 2. A plurality of hole channels 21 are uniformly arranged on the bottom of the lower end cover 3, which is convenient for air inlet. Figure 2

[0030] The flange plate 1 is installed on the upper end of the upper end cover 2, so that the air outlet 20 of the upper end cover 2 extends into the gas outlet 17 of the flange plate 1. The lower end cover 3 is arranged below the upper end cover 2, and the flange plate 1 and the upper end cover 2 and the upper end cover 2 and the lower end cover 3 are connected through the buckle 6 or the thread respectively, and the air outlet 17 of the flange plate 1 and the upper end cover 2 are connected through the O-ring one 16. In this embodiment, the buckle 6 is connected, two clamping grooves are designed on the side wall of the upper end cover 2, one of which is connected with the flange plate 1, and the other is connected with the lower end cover 3. The shape of the clamping groove can be a continuous groove, or an intermittent groove, or a starting point position can be designed for positioning. The clamping pawl matched with the groove is arranged on the flange plate 1 and the lower end cover 3, and the buckle 6 is designed to be firm and have enough rigidity, and the gap between the outside of the buckle 6 and the inside of the filter tank is less than 1 / 2 of the length of the buckle 6, so as to prevent the clamping pawl from being separated from the clamping groove and falling off.

[0031] As Figures 3-6 ​As shown, the upper cover 2 and the lower cover 3 enclose a storage area, which is filled with a molecular sieve 7. The molecular sieve 7 is a synthetically produced crystalline aluminosilicate, a mixture of compounds of silicon, aluminum, oxygen, sodium, or similar elements. Upon heating, it loses its water of crystallization, forming a stable ceramic mixture. The rigid, hollow structure can store liquids such as adsorbed water. A partition plate 4 divides the storage area into multiple regions, and perforations 8 are evenly distributed on the partition plate 4 to ensure gas flow. Specifically, the partition plate 4 consists of multiple vertical plates, with the same angle between adjacent vertical plates. In this embodiment, four vertical plates are provided, dividing the storage area into four regions. By providing perforations 8 and partition plates 4, physical wear caused by long-term mechanical vibration and high-velocity gas flow can be prevented, as can the reaction of moisture and other chemicals in the gas with the molecular sieve 7, leading to structural weakening. Furthermore, under high-temperature conditions, the physical structure of the molecular sieve 7 can change, leading to pulverization, reduced filtration efficiency, and particle breakage and detachment.

[0032] like Figure 3 As shown, to ensure adequate filtration of oil and aerosols, a sponge 9 is installed inside flange 1. A baffle 10 is installed at the lower end of sponge 9 to support it. A spring 11 is fitted over the upper cover 2, with the baffle 10 mounted on top of it, providing support. A second sponge 13 is installed at the bottom inner side of the lower cover 3's hole 21, with a baffle 12 at its upper end. The sponge must meet requirements for filtration accuracy, dirt holding capacity, and air permeability, as well as high-temperature flame retardancy and weather resistance. Materials with different filtration accuracy requirements are selected based on the specific environment. The sponge can be installed at the air inlet of flange 1, the air inlet of lower cover 3, or both, depending on the application environment.

[0033] like Figure 3 As shown, filter media 14 is welded to the upper inner side of the upper end cover 2, ensuring a seamless connection between filter media 14 and the upper end cover 2. This prevents debris from the molecular sieve 7 from leaking into the filter base or the outlet pipe. Filter media 15 is installed at the bottom inner side of the lower end cover 3, positioned above the baffle 12 to intercept oil, gas, and aerosols. A separator plate 4 is positioned between filter media 14 and filter media 15.

[0034] Working principle: the compressed gas which needs to be dried by the automobile inflator pump enters the inner cavity of the flange plate through the air inlet hole 18 around the flange plate 1, enters the cavity of the filter canister through the air inlet channel 19 between the inner wall of the flange plate 1 and the outer wall of the upper end cover 2 after being filtered by the sponge 1, then enters the hole 21 of the lower end cover 3, is filtered for the second and third times by the sponge 2 13 and the filter material 2 15, enters the space of the molecular sieve, and the dry air is output after the water molecules are adsorbed by the molecular sieve, sequentially passes through the filter material 1 14, the air outlet 20 of the upper end cover 2, the air outlet 20 of the flange plate 1, and is connected to the brake system, thus the drying process of the compression system is completed.

[0035] The above is only an example and description of the structure of the utility model, and those skilled in the art can make various modifications or supplements or adopt similar ways to replace the described specific embodiments, as long as the modifications or supplements or replacement do not deviate from the structure of the utility model or exceed the range defined by the claims, and all of them shall belong to the protection scope of the utility model.

Claims

1. A gas drying device for an automotive brake system, characterized by, The utility model relates to a filter device, including: Flange plate, the flange plate is connected with filter seat; Upper end cover and lower end cover, the flange plate is installed on the upper end of upper end cover, and the upper end cover and lower end cover enclose the storage area, the storage area is filled with molecular sieve, the inside upper portion of upper end cover is welded with filter material one, and the inside bottom of lower end cover is provided with filter material two; Partition plate, the storage area is divided into multiple areas by the partition plate, and the partition plate is evenly provided with perforation, and the partition plate is arranged between filter material one and filter material two.

2. A gas drying device for use in a vehicle brake system according to claim 1, characterized in that: The flange plate and upper end cover, upper end cover and lower end cover are respectively connected through buckle.

3. A gas drying device for use in a vehicle brake system according to claim 1, characterized in that: The flange plate and upper end cover, upper end cover and lower end cover are respectively connected through screw thread.

4. A gas drying device for use in a vehicle brake system according to claim 1, characterized in that: The inner hole of the flange plate and the upper end cover is sealedly connected through O ring one, and the flange plate is sealedly connected with the inside of filter tank through O ring two.

5. A gas drying device for use in a vehicle brake system according to claim 1, characterized in that: The flange plate and filter tank are press-fitted on the filter seat through large nut.

6. A gas drying device for use in a vehicle brake system according to claim 1, characterized in that: The inside top end of the flange plate is provided with sponge one, the lower end of the sponge one is provided with baffle one, the upper end cover is provided with spring, and the baffle one is installed on the upper end of spring.

7. A gas drying device for use in a vehicle brake system according to claim 1, characterized in that: The inside bottom of the lower end cover is provided with sponge two.

8. A gas drying device for use in a vehicle brake system according to claim 7, characterized in that: The upper end of the sponge two is provided with baffle two.