Drying tank for air compressor

Abstract

The drying tank for the air compressor comprises an outer shell, a filter shell assembly arranged in the outer shell in a sleeved mode and a molecular sieve filled in the filter shell assembly, the outer shell is detachably installed on one side of a crankcase of the air compressor, and the filter shell assembly comprises an inner sleeve and an outer sleeve which can be axially positioned and sleeved. The outer sleeve can be sleeved with the shell in a limited mode so that an exhaust pipe, connected with the outer sleeve, at the end of the inner sleeve can be located and sleeved with an exhaust port in one end of the shell, and the two air hole plates are installed in the inner sleeve and located on the two sides of the molecular sieve. According to the filter shell assembly of the drying tank, the problems that the molecular sieve is easily dispersed and the spring falls off in the process of mounting and dismounting the drying tank can be avoided, and the mounting efficiency between the filter shell assembly and the outer shell can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air drying devices, in particular to a drying tank for an air compressor. Background Art

[0002] Air compressors for air suspension systems typically consist of an air compression unit, a motor, and an air dryer. The air dryer's primary function is to dry the air compressed by the unit. Existing air dryers typically include a housing mounted on one side of the crankcase, with a filter housing containing bulk molecular sieves within. To account for volume changes caused by moisture absorption and expansion of the molecular sieves and to prevent them from dispersing, a spring-loaded air vent plate is installed on the crankcase side of the filter housing. However, this existing structure suffers from the following drawbacks:

[0003] During installation and removal of air dryers, springs often fall off and the molecular sieve inside scatters. Furthermore, the eccentrically located exhaust pipe at the end of the filter housing is difficult to view during installation and cannot be easily aligned with the exhaust port of the housing, resulting in inefficient installation. Therefore, the present invention aims to improve the structure of the dryer to overcome these drawbacks. Utility Model Content

[0004] To this end, the utility model provides a drying tank for an air compressor to solve the above-mentioned defects in the prior art.

[0005] A drying canister for an air compressor comprises an outer shell, a filter housing assembly sleeved inside the outer shell, and a molecular sieve filled inside the filter housing assembly, wherein the outer shell is detachably mounted on one side of a crankcase of the air compressor, and the filter housing assembly comprises an inner sleeve and an outer sleeve that can be axially positioned and sleeved, wherein the outer sleeve can be limitedly sleeved inside the outer shell so that an exhaust pipe at the end of the inner sleeve connected to the outer sleeve is positioned and sleeved on an exhaust port at one end of the outer shell, an air hole plate is installed inside the inner sleeve, two of the air hole plates are located on both sides of the molecular sieve, and a spring is provided on the outer side of the air hole plate located close to the side of the outer sleeve, and the outer end of the spring can be limited by the outer sleeve.

[0006] Preferably, a retaining ring is coaxially provided inside the outer sleeve and extends toward one side of the inner sleeve, the diameter of the retaining ring is smaller than the diameter of the air hole plate, and an accommodating cavity is formed between the outer wall of the retaining ring and the inner wall of the outer sleeve. A connecting ring is provided at one end of the accommodating cavity away from the inner sleeve, the spring is arranged in the accommodating cavity and is guided by the outer wall of the retaining ring, and the end of the spring close to the outer sleeve acts on the connecting ring.

[0007] Preferably, the inner wall of the outer sleeve close to the inner sleeve is provided with a radial guide groove and a circumferential guide groove which are interconnected end to end, the radial guide groove is arranged parallel to the central axis of the outer sleeve, and the notch of the radial guide groove is opened at the port of the outer sleeve close to the inner sleeve, the circumferential guide groove is arranged in the circumferential direction of the inner wall of the outer sleeve, and the outer wall of the inner sleeve close to the outer sleeve is provided with a guide block which can be guided sequentially by the radial guide groove and the circumferential guide groove.

[0008] Preferably, the outer wall of the outer sleeve is provided with a guide ridge parallel to the axial direction of the outer sleeve, and the inner wall of the shell corresponding to the outer sleeve is provided with a limiting groove that can cooperate with the guide ridge.

[0009] Preferably, the crankcase is provided with a plurality of threaded holes, the outer shell is provided with a through hole, and the screw passes through the through hole and is locked in the corresponding threaded hole position.

[0010] Preferably, gaskets are provided on opposite inner sides of the two air hole plates, and the two gaskets are respectively located on both sides of the molecular sieve.

[0011] The utility model has the following advantages:

[0012] The filter housing assembly of the utility model is positioned and installed relative to the outer shell, so that the exhaust pipe eccentrically arranged at its end can be fitted relative to the exhaust port portion of the outer shell at one time, thereby improving the installation efficiency between the two; the filter housing assembly adopts a detachable positioning and fitting method, and when disassembling and installing the drying tank, the spring on the inner side of the outer sleeve can lock the air hole plate to the molecular sieve portion, thereby preventing the molecular sieve from scattering when the air hole plate end loses support; the retaining ring on the inner side of the outer sleeve can guide the spring, and the accommodating cavity can limit the spring, thereby preventing the spring from being displaced and falling off during the installation process, and also improving the accuracy of the spring positioning installation. The structure of the drying tank can improve the installation and disassembly efficiency of the drying tank and the crankcase on one side as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of part A in the middle;

[0017] Figure 5 For this utility model Figure 3Schematic diagram of the enlarged structure of part B in the middle;

[0018] Figure 6 This is a schematic diagram of the connection structure of the filter housing assembly of the utility model;

[0019] Figure 7 This is a schematic diagram of the installation structure of the filter housing assembly of the utility model;

[0020] Figure 8 It is a schematic diagram of the partial expanded structure of the inner wall of the outer sleeve of the utility model.

[0021] In the picture:

[0022] 1-housing; 2-inner sleeve; 3-outer sleeve; 4-crankcase; 401-threaded hole; 5-molecular sieve; 6-spring; 7-orifice plate; 8-screw; 9-gasket; 10-air guide groove;

[0023] 101-exhaust port; 102-limiting groove; 103-perforation;

[0024] 202-exhaust pipe; 203-guide block;

[0025] 301 - guide edge; 302 - retaining ring; 303 - accommodating cavity; 304 - connecting ring; 305 - radial guide groove; 306 - circumferential guide groove. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 Only Figure 8 As shown, the utility model provides a drying tank for an air compressor, comprising a shell 1, a filter housing assembly sleeved inside the shell 1, and a molecular sieve 5 filled inside the filter housing assembly. The shell 1 is detachably mounted on one side of a crankcase 4 of the air compressor.

[0028] Specifically, the crankcase 4 is provided with a plurality of threaded holes 401, and the housing 1 is provided with through-holes 103. Screws 8 pass through the through-holes 103 and are locked in corresponding threaded holes 401. The number of screws 8 is preferably no less than three, and they are relatively evenly distributed around the housing 1 to improve the stability of its installation with the crankcase 4.

[0029] A gap is left between the filter housing assembly and the outer shell 1 to facilitate exhaust.

[0030] The filter housing assembly includes an inner sleeve 2 and an outer sleeve 3 that can be positioned and fitted together in the axial direction. To achieve the positioning and installation of the two, the inner wall of the outer sleeve 3 on the side close to the inner sleeve 2 is provided with a radial guide groove 305 and a circumferential guide groove 306 that penetrate each other end to end. The radial guide groove 305 is arranged parallel to the central axis of the outer sleeve 3, and the notch of the radial guide groove 305 is opened at the end of the outer sleeve 3 close to the inner sleeve 2. The circumferential guide groove 306 is arranged in the circumferential direction of the inner wall of the outer sleeve 3. The outer wall of the inner sleeve 2 on the side close to the outer sleeve 3 is provided with a guide block 203 that can be guided sequentially by the radial guide groove 305 and the circumferential guide groove 306.

[0031] The outer sleeve 3 can be positioned within the outer shell 1 so that the exhaust pipe 202 at the end of the inner sleeve 2 connected to the outer sleeve 3 is positioned within the exhaust port 101 at one end of the outer shell 1. Specifically, a guide rib 301 can be provided on the outer wall of the outer sleeve 3 parallel to the axial direction of the outer sleeve 3, and a retaining groove 102 that can cooperate with the guide rib 301 is provided on the inner wall of the outer shell 1 at a portion corresponding to the outer sleeve 3. The mutual cooperation between the guide rib 301 and the retaining groove 102 can achieve the positioning and installation of the outer sleeve 3 relative to the outer shell 1. Because the relative positions of the inner sleeve 2 and the outer sleeve 3 are fixed, the positioning of the inner sleeve 2 relative to the outer shell 1 can also be achieved.

[0032] A pore plate 7 is installed inside the inner sleeve 2 , and two pore plates 7 are located on both sides of the molecular sieve 5 . Gaskets 9 are provided on opposite inner sides of the two pore plates 7 , and two gaskets 9 are located on both sides of the molecular sieve 5 .

[0033] A spring 6 is provided on the outer side of the air hole plate 7 located near the outer sleeve 3, and the outer end of the spring 6 can be limited by the outer sleeve 3. Specifically:

[0034] A retaining ring 302 extending toward one side of the inner sleeve 2 is coaxially provided inside the outer sleeve 3. The diameter of the retaining ring 302 is smaller than the diameter of the air hole plate 7. An accommodating cavity 303 is formed between the outer wall of the retaining ring 302 and the inner wall of the outer sleeve 3. A connecting ring 304 is provided at one end of the accommodating cavity 303 away from the inner sleeve 2. The spring 6 is arranged in the accommodating cavity 303 and is guided by the outer wall of the retaining ring 302. The end of the spring 6 close to the outer sleeve 3 acts on the connecting ring 304.

[0035] When installing the drying canister of the present invention, first place the air hole plate 7 and gasket 9 on the inner end of the inner sleeve 2. Pour the bulk molecular sieve 5 into the inner sleeve 2. Then, place the gasket 9 and air hole plate 7 on the outer end of the inner sleeve 2, one after another, over the molecular sieve 5. Then, guide the spring 6 into the receiving cavity 303 of the outer sleeve 3.

[0036] Then, the guide block 203 at the end of the inner sleeve 2 is guided along the radial guide groove 305 of the outer sleeve 3 to the position where it penetrates the circumferential guide groove 306, and the inner sleeve 2 where the guide block 203 is located is rotated along the circumferential guide groove 306, so that the outer sleeve 3 and the inner sleeve 2 complete the positioning set, and the air guide grooves 10 on the outer walls of the outer sleeve 3 and the inner sleeve 2 penetrate each other.

[0037] At this time, the spring 6 supports the air hole plate 7 inside the inner sleeve 2, so that the molecular sieve 5 inside the inner sleeve 2 is in a compressed state.

[0038] Afterwards, the guide edge 301 on the outer side of the outer sleeve 3 of the filter housing assembly is positioned and sleeved into the limiting groove 102 on the inner wall of the shell 1, so that the exhaust pipe 202 at the front end of the sleeved filter housing assembly can be positioned and installed at the exhaust port 101 of the shell 1 at one time.

[0039] Finally, the housing 1 is locked to one side of the crankcase 4 using the screw 8. The filter housing assembly inside the housing 1 is also pressed tightly against one side of the crankcase 4.

[0040] When disassembling the drying tank, after removing the screw 8, the outer shell 1 is separated from the crankcase 4, and the filter housing assembly is removed from the inner shell 1 to ensure that the molecular sieve inside is not easily scattered. Finally, the inner sleeve 2 and the outer sleeve 3 are separated to pour out the molecular sieve inside.

[0041] The filter housing assembly of the present invention is positioned and installed relative to the outer shell 1, so that the exhaust pipe 202 eccentrically arranged at its end can be installed relative to the exhaust port 101 on the outer shell 1 at one time, thereby improving the installation efficiency between the two; the filter housing assembly adopts a detachable positioning and installing method, and when disassembling and installing the drying tank, the spring 6 on the inner side of the outer sleeve 3 can lock the pore plate 7 on the molecular sieve 5, thereby preventing the molecular sieve 5 from scattering when the end of the pore plate 7 loses support; the retaining ring 302 on the inner side of the outer sleeve 3 can guide the spring 6, and the accommodating cavity 303 can limit the spring 6, thereby preventing the spring 6 from being displaced and falling off during the installation process, and also improving the accuracy of the spring positioning installation. The structure of the drying tank can improve the installation and disassembly efficiency of it and the crankcase on one side as a whole.

[0042] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. A drying tank for an air compressor, comprising a housing (1), a filter housing assembly mounted inside the housing (1), and a molecular sieve (5) filled inside the filter housing assembly, wherein the housing (1) is detachably mounted on one side of a crankcase (4) of an air compressor, and characterized in that: The filter housing assembly comprises an inner sleeve (2) and an outer sleeve (3) which can be axially positioned and sleeved, the outer sleeve (3) being able to be limitedly sleeved in the outer housing (1) so that the exhaust pipe (202) at the end of the inner sleeve (2) connected to the outer sleeve (3) is positioned and sleeved in the exhaust port (101) at one end of the outer housing (1), an air hole plate (7) is installed inside the inner sleeve (2), two air hole plates (7) are located on both sides of the molecular sieve (5), and a spring (6) is arranged on the outer side of the air hole plate (7) located close to the side of the outer sleeve (3), and the outer end of the spring (6) can be limited by the outer sleeve (3).

2. The drying tank for an air compressor according to claim 1, characterized in that: A retaining ring (302) is coaxially disposed inside the outer sleeve (3) and extends toward one side of the inner sleeve (2); the diameter of the retaining ring (302) is smaller than the diameter of the air hole plate (7); an accommodating cavity (303) is formed between the outer wall of the retaining ring (302) and the inner wall of the outer sleeve (3); a connecting ring (304) is disposed at one end of the accommodating cavity (303) away from the inner sleeve (2); the spring (6) is disposed in the accommodating cavity (303) and is guided by the outer wall of the retaining ring (302); and the end of the spring (6) close to the outer sleeve (3) acts on the connecting ring (304).

3. The drying tank for an air compressor according to claim 1, characterized in that: The inner wall of the outer sleeve (3) on the side close to the inner sleeve (2) is provided with a radial guide groove (305) and a circumferential guide groove (306) which are mutually connected end to end. The radial guide groove (305) is arranged parallel to the central axis of the outer sleeve (3), and the notch of the radial guide groove (305) is opened at the end of the outer sleeve (3) close to the inner sleeve (2). The circumferential guide groove (306) is arranged in the circumferential direction of the inner wall of the outer sleeve (3). The outer wall of the inner sleeve (2) on the side close to the outer sleeve (3) is provided with a guide block (203) which can be guided sequentially by the radial guide groove (305) and the circumferential guide groove (306).

4. The drying tank for an air compressor according to claim 1, characterized in that: The outer wall of the outer sleeve (3) is provided with a guide edge (301) parallel to the axial direction of the outer sleeve (3), and the inner wall of the outer shell (1) is provided with a limiting groove (102) capable of cooperating with the guide edge (301) at a position corresponding to the outer sleeve (3).

5. The drying tank for an air compressor according to claim 1, characterized in that: The crankcase (4) is provided with a plurality of threaded holes (401), the housing (1) is provided with a through hole (103), and the screw rod (8) passes through the through hole (103) and is locked in the corresponding threaded hole (401).

6. The drying tank for an air compressor according to claim 1, characterized in that: Gaskets (9) are provided on the opposite inner sides of the two pore plates (7), and the two gaskets (9) are respectively located on both sides of the molecular sieve (5).

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