Drying agent cylinder for air dryer

Abstract

The utility model relates to the field of air dryers, in particular to a drying agent cylinder for an air dryer, which comprises a shell, an inner cylinder fixedly connected in the shell, a filter element arranged between the shell and the inner cylinder, a detachable cover fixedly connected to the lower end of the filter element, two pull rods fixedly connected to the lower end of the detachable cover, and a plurality of air holes formed in the detachable cover. A spring is fixedly connected to the inner wall of the shell, a first screen plate is fixedly connected to the lower end of the spring and slidably connected into the inner cylinder, a second screen plate is slidably connected to the bottom of the inner cylinder, internal threads are formed in the lower end opening of the inner cylinder, and the filter element of the drying agent cylinder is convenient to replace.

Description

Technical Field

[0001] The utility model relates to the field of air dryers, in particular to a desiccant cartridge for air dryers. Background Art

[0002] An air dryer is an air drying device in a vehicle's air system. The air dryer is usually placed between an air source, such as a compressor, and an air storage cylinder. The air dryer contains a desiccant material, such as a water-absorbing material such as silica gel, which removes moisture from the air supplied by the compressor, and the desiccant cartridge of the air dryer is a cartridge for storing the desiccant material. The performance of the desiccant material deteriorates over time, so the desiccant material is replaced regularly.

[0003] In addition to the desiccant material, the desiccant cartridge in the prior art also has a filter element for preliminary filtering of the air. Although the desiccant cartridge is convenient for replacing the desiccant material, it lacks the function of quickly replacing the filter element, thus affecting the replacement time. Therefore, please propose a desiccant cartridge that is convenient for replacing the filter element. Utility Model Content

[0004] The utility model provides a desiccant cartridge for an air dryer. The desiccant cartridge is convenient for replacing a filter element.

[0005] A desiccant cylinder for an air dryer comprises an outer shell, an inner cylinder is fixedly connected inside the outer shell, a filter element is arranged between the outer shell and the inner cylinder, a disassembly cover is fixedly connected to the lower end of the filter element, two pull rods are fixedly connected to the lower end of the disassembly cover, and a plurality of air holes are opened on the disassembly cover.

[0006] A spring is fixedly connected to the inner wall of the shell, a first mesh plate is fixedly connected to the lower end of the spring, the first mesh plate is slidably connected to the inside of the inner cylinder, and a second mesh plate is slidably connected to the bottom of the inner cylinder.

[0007] An internal thread is provided at the lower end of the inner cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0009] Figure 1 and Figure 2 It is a schematic diagram of the overall structure of a desiccant cartridge for an air dryer;

[0010] Figure 3 is a structural cross-sectional view of the shell;

[0011] Figure 4 It is a structural cross-sectional view of the inner tube;

[0012] Figure 5 Schematic diagram of the structure of the disassembly cover. DETAILED DESCRIPTION

[0013] See also Figure 3 ,

[0014] A desiccant cylinder for an air dryer comprises an outer shell 101, an inner cylinder 102 is welded and fixedly connected inside the outer shell 101, a filter element 201 is arranged between the outer shell 101 and the inner cylinder 102, the filter element 201 is stuck in the gap between the outer shell 101 and the inner cylinder 102 by friction, a disassembly cover 202 is bonded to the lower end of the filter element 201, two pull rods 204 are bonded to the lower end of the disassembly cover 202, a rubber ring is arranged on the edge of the disassembly cover 202, and a plurality of air holes 203 are opened on the disassembly cover 202.

[0015] When using the desiccant cylinder, air enters the gap between the outer shell 101 and the inner cylinder 102 through multiple air holes 203, and is preliminarily filtered by the filter element 201. The inner cylinder 102 is used to store desiccant. The air preliminarily filtered by the filter element 201 enters the inner cylinder 102 and contacts with the desiccant. The desiccant dries the air, and finally the air is discharged through the lower port of the inner cylinder 102.

[0016] Since the disassembly cover 202 is stuck between the outer shell 101 and the inner cylinder 102 by friction, and the disassembly cover 202 and the filter element 201 are bonded and fixed, after the filter element 201 has been used for a period of time, the user can pull the two pull rods 204 downward to drive the filter element 201 to be pulled out from the gap between the outer shell 101 and the inner cylinder 102, thereby facilitating the replacement of the filter element 201.

[0017] The two pull rods 204 facilitate the user to manually remove the disassembly cover 202 .

[0018] See also Figure 4 ,

[0019] A spring 103 is welded and fixedly connected to the inner wall of the outer shell 101 , a first mesh plate 104 is fixedly connected to the lower end of the spring 103 , the first mesh plate 104 is slidably connected to the inside of the inner tube 102 , and a second mesh plate 105 is slidably connected to the bottom of the inner tube 102 .

[0020] The inner cylinder 102 is used to fill the desiccant, and the desiccant is located between the first mesh plate 104 and the second mesh plate 105 . The first mesh plate 104 and the second mesh plate 105 can ensure that the desiccant is in the inner cylinder 102 while exhausting the air.

[0021] Through the elastic effect of the spring 103, the first mesh plate 104 and the second mesh plate 105 can cooperate to compress the desiccant, thereby ensuring the dehumidification effect of the desiccant.

[0022] See also Figure 4 ,

[0023] An internal thread is provided at the lower end of the inner tube 102, and the internal thread is used to connect the inner tube 102 to other pipelines.

[0024] See also Figure 3 ,

[0025] The filter element 201 is formed by stacking multiple layers of glass fiber paper. The glass fiber paper has good filtering performance and can perform preliminary filtering treatment on the air.

[0026] See also Figure 5 ,

[0027] A rubber ring is provided at the edge of the disassembly cover 202, and the rubber ring can increase the friction between the disassembly cover 202 and the outer shell 101 and the inner cylinder 102, thereby ensuring that the disassembly cover 202 can be stable and not easy to fall off.

[0028] See also Figure 5 ,

[0029] The disassembly cover 202 is made of plastic material, and the disassembly cover 202 made of plastic material has the performance of rust prevention and corrosion prevention.

[0030] See also Figure 4 ,

[0031] The first mesh plate 104 and the second mesh plate 105 are both wire meshes, which have good strength and can withstand the squeezing of the desiccant.

[0032] See also Figure 3 ,

[0033] The housing 101 is made of stainless steel. The stainless steel housing 101 has good hardness and rust resistance, and can extend the service life of the housing 101.

[0034] See also Figure 3 ,

[0035] The inner cylinder 102 is made of stainless steel, and the outer shell 101 made of stainless steel has good hardness and rust resistance, which can extend the service life of the inner cylinder 102 .

[0036] See also Figure 3 ,

[0037] The two pull rods 204 are both made of plastic material. The pull rods 204 made of plastic material can reduce the overall weight and facilitate user operation.

Claims

1. A desiccant cartridge for an air dryer, characterized in that: The invention comprises an outer shell (101), an inner cylinder (102) is fixedly connected to the outer shell (101), a filter element (201) is arranged between the outer shell (101) and the inner cylinder (102), a disassembly cover (202) is fixedly connected to the lower end of the filter element (201), two pull rods (204) are fixedly connected to the lower end of the disassembly cover (202), and a plurality of air holes (203) are provided on the disassembly cover (202); a spring (103) is fixedly connected to the inner wall of the outer shell (101), a first mesh plate (104) is fixedly connected to the lower end of the spring (103), and the first mesh plate (104) is slidably connected to the inner cylinder (102). ) inside, the bottom of the inner cylinder (102) is slidably connected to a second mesh plate (105); the first mesh plate (104) and the second mesh plate (105) are both wire meshes; the inner cylinder (102) is used to fill the desiccant, and the desiccant is located between the first mesh plate (104) and the second mesh plate (105), and the first mesh plate (104) and the second mesh plate (105) can ensure that the desiccant is in the inner cylinder (102) while exhausting the air; through the elastic action of the spring (103), the first mesh plate (104) and the second mesh plate (105) can cooperate to compress the desiccant, thereby ensuring the dehumidification effect of the desiccant.

2. The desiccant cartridge for an air dryer according to claim 1, characterized in that: An internal thread is provided at the lower end of the inner cylinder (102).

3. The desiccant cartridge for an air dryer according to claim 2, characterized in that: The filter element (201) is formed by stacking multiple layers of glass fiber paper.

4. The desiccant cartridge for an air dryer according to claim 3, characterized in that: A rubber ring is provided on the edge of the disassembly cover (202).

5. The desiccant cartridge for an air dryer according to claim 4, characterized in that: The disassembly cover (202) is made of plastic.

6. The desiccant cartridge for an air dryer according to claim 5, characterized in that: The housing (101) is made of stainless steel.

7. The desiccant cartridge for an air dryer according to claim 6, characterized in that: The inner cylinder (102) is made of stainless steel.

8. The desiccant cartridge for an air dryer according to claim 7, characterized in that: The two pull rods (204) are both made of plastic.

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