Drying device for air treatment device

Abstract

The utility model relates to the technical field of air treatment devices, in particular to a drying device for an air treatment device, which comprises a drying agent sleeve, the drying agent sleeve comprises a drying agent storage barrel, an upper shell, a lower shell and a drying agent storage barrel cover, and one end of the drying agent sleeve is abutted against the lower shell while the other end of the drying agent sleeve is abutted against the lower end of the drying agent storage barrel; the upper shell comprises a connecting part and a filter screen, a positioning groove allowing the upper end of the drying agent storage barrel to be connected in an inserted mode is formed between the inner side wall of the connecting part and the filter screen, and the inner wall, located below the positioning groove, of the connecting part is detachably connected with the lower shell; the utility model has the beneficial effects that the positioning groove is formed between the inner side wall of the connecting part and the filter screen, and is detachably connected with the outer side wall of the lower shell, so that the upper shell and the lower shell can be easily assembled or disassembled, the processing technology requirement is reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air processing devices, in particular to a drying device used for air processing devices. Background Art

[0002] Air handling devices are mainly used in commercial vehicles, especially trucks and tractors. Such vehicles usually have one or more compressed air consuming devices, which must be provided with processed compressed air. In order to provide compressed air for commercial vehicles, a compressed air supply device is configured. This compressed air supply device especially has an air handling device and is equipped with an air drying device. At the same time, the air drying device usually has a filter device to filter the air. In order to make the air filter and desiccant easier to maintain and replace, a desiccant sleeve is usually used as an air drying device and connected to the air handling device or installed inside the air handling device.

[0003] Publication No. "EP3398672B1" is a desiccant cartridge for an air handling system and an air handling system for a commercial vehicle, comprising a desiccant container containing a desiccant, an upper housing that contacts the upper end of the desiccant container and prevents the desiccant from escaping from the desiccant container, a lower housing for docking the desiccant cartridge with the air handling system and supporting the desiccant container, and a spring that presses against the lower housing and generates a compressive force on the desiccant, the upper housing and the lower housing are permanently connected in a fixed position relative to each other, the desiccant container can be axially moved relative to the upper housing and the lower housing, wherein the spring separates the lower housing and the desiccant container from each other, wherein the upper housing comprises a socket, and the lower housing comprises an arm, wherein the socket receives the arm;

[0004] It can be seen from the above documents that in the drying device for the air treatment device, the upper shell and the lower shell are permanently connected at a fixed position, and combined with the drawings in the specification, it can be seen that two sockets marked 27 and 28 are opened in the upper shell of the drying device for plugging in the desiccant container and the lower shell. However, this structure has high requirements on the processing technology. If an error occurs during the processing of the gap between the two sockets, it will cause the desiccant container and the lower shell to be unable to be assembled with the upper shell, and the disassembly and assembly of this structure is relatively inconvenient. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a drying device for an air treatment device which has low processing requirements and is easy to assemble and disassemble, in view of the deficiencies of the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drying device for an air treatment device, comprising a desiccant sleeve, the desiccant sleeve comprising a desiccant storage cylinder, an upper shell that contacts the upper end of the desiccant storage cylinder and prevents the desiccant from escaping from the desiccant storage cylinder, a lower shell that is slidably connected to the lower end of the desiccant storage cylinder, and a lower shell that abuts against the lower shell at one end and the lower end of the desiccant storage cylinder at the other end, and a spring that can cause the desiccant storage cylinder to move relative to the axis of the upper shell and the lower shell, characterized in that: the upper shell comprises a connecting portion and a filter screen, a positioning groove for the upper end of the desiccant storage cylinder to be inserted is formed between the inner side wall of the connecting portion and the filter screen, and the inner wall of the connecting portion located below the positioning groove is detachably connected to the lower shell.

[0007] By adopting the above technical scheme: compared with the prior art in which two sockets are respectively provided in the upper shell for assembling the desiccant container and the lower shell, the utility model forms a positioning groove for the upper end of the desiccant storage cylinder to be inserted between the inner wall of the connecting part and the filter screen, and at the same time, the inner wall of the connecting part located below the positioning groove is detachably connected to the lower shell. During the assembly process, it is only necessary to extend the upper end of the desiccant storage cylinder into the positioning groove, and then connect the inner wall of the connecting part located below the positioning groove to the lower shell. The problem of being unable to assemble when there is a slight error in the size of the socket will not occur, and the processing technology requirements are low, and the effect of easy assembly and disassembly is achieved.

[0008] A further configuration of the utility model is that an internal thread is provided on the inner wall of the connecting portion below the positioning groove, and an external thread is provided on the upper end of the outer wall of the lower shell body. The internal thread and the external thread can cooperate with each other, thereby facilitating disassembly or installation between the upper shell body and the lower shell body through the thread.

[0009] By adopting the above technical solution: through the setting of the internal thread and the external thread, when disassembly is required, it is only necessary to rotate the upper shell to separate the upper shell from the lower shell. When assembling, it is only necessary to first extend the upper end of the desiccant storage cylinder into the positioning groove, and then align the internal thread in the upper shell with the external thread on the lower shell and rotate it in the opposite direction to lock it, thereby achieving the effect of low processing technology requirements, simple structure and convenient operation.

[0010] A further configuration of the utility model is that a groove is formed between the filter screen and the top of the connecting portion, at least eight reinforcement strips are circumferentially arranged in the groove with the center of the filter screen as the center, and a plurality of first through holes are also arranged on the filter screen.

[0011] The above technical solution is adopted: the air filtering effect is improved by setting the filter screen, and the firmness of the product is further enhanced by setting at least eight reinforcement strips. In addition, the diameter of the first through hole is smaller than the diameter of the desiccant to avoid desiccant leakage.

[0012] A further configuration of the utility model is that filter paper is provided at the upper end and the lower end of the desiccant storage cylinder.

[0013] The above technical solution is adopted: filter papers are arranged at both the upper and lower ends of the desiccant storage cylinder, thereby further improving the air filtering effect.

[0014] A further configuration of the utility model is that a plurality of second through holes are sequentially arranged along the outer wall of the lower shell, and each of the second through holes is arranged at intervals along the circumferential direction of the outer wall of the lower shell, and the second through holes are U-shaped groove structures.

[0015] The above technical solution is adopted: by setting a plurality of second through holes, which are U-shaped groove structures, the air flow is ensured while the pressure resistance of the desiccant storage cylinder is enhanced.

[0016] A further configuration of the utility model is: a mounting hole protruding toward the desiccant storage cylinder is provided at the bottom of the lower shell, the desiccant storage cylinder is provided with a mounting column, the mounting column can slide along the mounting hole, a first sealing groove is provided on the outer wall of the mounting column, and a first sealing ring is provided in the first sealing groove.

[0017] The above technical solution is adopted: the assembly efficiency in the assembly process is improved by setting the mounting hole and the mounting column, and the sealing between the lower shell and the desiccant storage cylinder is improved by setting the first sealing groove and the first sealing ring.

[0018] The utility model is further configured as follows: two sealing brims are circumferentially arranged on the outer wall of the lower shell body, and the two sealing brims are symmetrical to each other, a second sealing groove is formed between the sealing brims, and a second sealing ring is arranged in the second sealing groove.

[0019] By adopting the above technical solution, through the provision of the sealing brim, the second sealing groove and the second sealing ring, when the utility model is connected to the air treatment device, the sealing between the two can be improved.

[0020] The utility model is further configured as follows: a spring seat is provided in the bottom of the lower shell, and the spring seat sleeve is arranged outside the mounting hole, and a spring mounting groove is provided on the spring seat for mounting one end of the spring

[0021] By adopting the above technical solution, the spring seat and the spring installation groove provided on the spring seat can improve the assembly efficiency of the spring during the assembly process.

[0022] The beneficial effects of the utility model are as follows: a positioning groove is formed between the inner wall of the connecting part and the filter screen, and the connection is detachable with the outer wall of the lower shell body, so that the upper shell body and the lower shell body can be easily assembled or disassembled, thereby reducing the processing technology requirements and improving the assembly efficiency.

[0023] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0025] Figure 2 It is a cross-sectional view of the utility model.

[0026] Figure 3 It is an exploded view of the utility model.

[0027] Figure 4 It is a schematic diagram of the upper shell structure of the utility model.

[0028] Figure 5 It is a schematic diagram of the lower shell structure of the utility model.

[0029] Figure 6 For this utility model Figure 3 Enlarged view of point A in the middle.

[0030] Explanation of reference numerals: desiccant sleeve 1, desiccant storage cylinder 11, filter paper 111, mounting column 112, first sealing groove 1121, first sealing ring 1122, upper shell 12, connecting portion 121, filter screen 122, first through hole 1221, positioning groove 123, groove 124, reinforcement strip 125, internal thread 126, lower shell 13, second through hole 131, mounting hole 132, sealing brim 133, second sealing groove 1331, second sealing ring 1332, spring seat 134, spring mounting groove 1341, external thread 135, spring 14. DETAILED DESCRIPTION

[0031] This specific embodiment and the drawings of the disclosed embodiments only involve structures related to the disclosed embodiments. For other structures and working principles, reference may be made to the comparative document with publication number "EP3398672B1". In the absence of conflict, the same embodiment and different embodiments of the utility model may be combined with each other.

[0032] like Figure 1-6A drying device for an air treatment device shown in the figure comprises a desiccant sleeve 1, wherein the desiccant sleeve 1 comprises a desiccant storage cylinder 11, an upper shell 12 which contacts the upper end of the desiccant storage cylinder 11 and prevents the desiccant from escaping from the desiccant storage cylinder 11, a lower shell 13 which is slidably connected to the lower end of the desiccant storage cylinder 11, and a spring 14 which is capable of causing the desiccant storage cylinder 11 to move relative to the axis of the upper shell 12 and the lower shell 13. The upper shell 12 comprises a connecting portion 121 and a filter screen 122. A positioning groove 123 for inserting the upper end of the desiccant storage cylinder 11 is formed between the inner side wall of the connecting portion 121 and the filter screen 122. The connecting portion 121 is located at The inner wall below the positioning groove 123 is detachably connected to the lower shell 13. The inner wall of the connecting portion 121 below the positioning groove 123 is provided with an internal thread 126. The upper end of the outer wall of the lower shell 13 is provided with an external thread 135. The internal thread 126 and the external thread 135 can cooperate with each other, so as to facilitate the upper shell 12 and the lower shell 13 to be disassembled or installed through the thread. When disassembly is required, it is only necessary to rotate the upper shell 12 to separate the upper shell 12 from the lower shell 13. When assembling, it is only necessary to first extend the upper end of the desiccant storage cylinder 11 into the positioning groove 123, and then align the internal thread 126 in the upper shell 12 with the external thread 135 on the lower shell 13 and rotate and lock it in the opposite direction, thereby achieving the effects of low processing requirements, simple structure and convenient operation.

[0033] like Figure 2-5 The detachable connection structure shown includes an internal thread 126 located on the inner side wall of the connection portion 121 and an external thread 135 located on the outer side wall of the lower shell 13. The internal thread 126 cooperates with the external thread 135, so that the upper shell 12 and the lower shell 13 are detachably connected through the thread, which is convenient for users to replace, can reasonably utilize parts, is more environmentally friendly, and reduces maintenance costs;

[0034] like Figure 1 , 2 4 and the top of the connecting portion 121 form a groove 124, in which at least eight reinforcement strips 125 are circumferentially arranged with the center of the filter mesh 122 as the center, and the filter mesh 122 is also provided with a plurality of first through holes 1221; filter paper 111 is provided at the upper and lower ends of the desiccant storage cylinder 11, thereby further improving the air filtering effect. Example

[0035] like Figure 2 , 5As shown, the structure of Example 2 is basically the same as that of Example 1, except that a plurality of second through holes 131 are sequentially provided along the outer wall of the lower shell 13, and the second through holes 131 are circumferentially spaced apart along the outer wall of the lower shell 13, and the second through holes 131 are U-shaped groove structures, which ensure the air flow while enhancing the compressive strength of the desiccant storage cylinder 11. Example

[0036] like Figure 2 , 3 6, the structure of the embodiment 3 is substantially the same as that of the embodiment 1, except that a mounting hole 132 protruding toward the desiccant storage cylinder 11 is provided at the bottom of the lower housing 13, and the desiccant storage cylinder 11 is provided with a mounting column 112, which can slide along the mounting hole 132, and a first sealing groove 1121 is provided on the outer wall of the mounting column 112, and a first sealing ring 1122 is provided in the first sealing groove 1121;

[0037] like Figure 3 , 5 The outer wall of the lower shell 13 shown is provided with two sealing brims 133 in a circumferential direction, and the two sealing brims 133 are symmetrical to each other. A second sealing groove 1331 is formed between the sealing brims 133, and a second sealing ring 1332 is provided in the second sealing groove 1331, thereby improving the overall sealing function of the utility model;

[0038] like Figure 6 A spring seat 134 is provided at the bottom of the lower shell 13 shown, and the spring seat 134 is sleeved outside the mounting hole 132. The spring seat 134 is provided with a spring mounting groove 1341 for mounting one end of the spring 14, which improves the assembly efficiency of the spring 14 during the assembly process.

[0039] Through the technical solution of the utility model, compared with the structure in the prior art with higher processing technology requirements, the utility model forms a positioning groove 123 between the inner wall of the connecting part 121 in the upper shell 12 and the filter screen 122, and the connecting part 121 and the lower shell 13 are connected by threads, so that the upper shell 12 and the lower shell 13 can be easily disassembled, which is convenient for users to replace, can reasonably utilize parts, and reduce processing technology requirements.

Claims

1. A drying device for an air handling device, comprising a desiccant sleeve, the desiccant sleeve comprising a desiccant storage cylinder, an upper shell contacting the upper end of the desiccant storage cylinder and preventing the desiccant from escaping from the desiccant storage cylinder, a lower shell slidably connected to the lower end of the desiccant storage cylinder, and a spring capable of causing the desiccant storage cylinder to move relative to the axis of the upper shell and the lower shell, characterized in that: The upper shell includes a connecting part and a filter screen. A positioning groove for inserting the upper end of the desiccant storage cylinder is formed between the inner side wall of the connecting part and the filter screen. The inner wall of the connecting part located below the positioning groove is detachably connected to the lower shell.

2. A drying device for an air treatment device according to claim 1, characterized in that: The inner wall of the connecting portion below the positioning groove is provided with an internal thread, and the upper end of the outer wall of the lower shell is provided with an external thread. The internal thread and the external thread can cooperate with each other, thereby facilitating the disassembly or installation of the upper shell and the lower shell through the thread.

3. A drying device for an air treatment device according to claim 1 or 2, characterized in that: A groove is formed between the filter screen and the top of the connecting portion, and at least eight reinforcement strips are arranged in the groove in a circumferential direction with the center of the filter screen as the center. The filter screen is also provided with a plurality of first through holes.

4. A drying device for an air treatment device according to claim 1 or 2, characterized in that: Filter paper is arranged at the upper end and the lower end of the desiccant storage cylinder.

5. A drying device for an air treatment device according to claim 1, characterized in that: The lower shell is provided with a plurality of second through holes in sequence along the outer wall, and each of the second through holes is arranged at intervals along the circumferential direction of the outer wall of the lower shell, and the second through holes are U-shaped groove structures.

6. A drying device for an air treatment device according to claim 1, characterized in that: The bottom of the lower shell is provided with a mounting hole protruding toward the desiccant storage cylinder. The desiccant storage cylinder is provided with a mounting column. The mounting column can slide along the mounting hole. The outer wall of the mounting column is provided with a first sealing groove. A first sealing ring is provided in the first sealing groove.

7. A drying device for an air treatment device according to claim 6, characterized in that: The outer wall of the lower shell body is provided with two sealing brims in a circumferential direction, and the two sealing brims are symmetrical to each other. A second sealing groove is formed between the sealing brims, and a second sealing ring is provided in the second sealing groove.

8. A drying device for an air treatment device according to claim 7, characterized in that: A spring seat is arranged in the bottom of the lower shell body, and the spring seat sleeve is arranged outside the mounting hole. A spring mounting groove for mounting one end of the spring is arranged on the spring seat.

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