Outer shell of filter

Abstract

The utility model belongs to the technical field of filters, and discloses a filter outer shell which comprises a dustproof outer shell, one end of the dustproof outer shell is spirally connected with a protective shell, one end of the protective shell is spirally connected with a fixing block, one end of the fixing block is fixedly connected with a filter body, and a first spring is embedded in the fixing block. One end of the first spring is fixedly connected with an L-shaped block, the inside of the L-shaped block is rotatably connected with a rotating shaft, the outer side of the rotating shaft is rotatably connected with a pull ring, a second spring is embedded in the pull ring, one end of the second spring is fixedly connected with a pressing block, the two ends of the pressing block are fixedly connected with steel wires, and the other end of each steel wire is fixedly connected with one side of the L-shaped block. According to the technical scheme, the problems that in the prior art, when a filter needs to be replaced, the filter body cannot be rapidly replaced, time and labor are wasted, the working efficiency of workers is reduced, and the sealing performance is reduced and the working efficiency of the filter is reduced due to the fact that threads are possibly loosened under the action of external force are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, in particular to an outer shell of a filter. Background Art

[0002] A filter is a device used to filter impurities, pollutants or particles, so it must have good sealing performance to effectively achieve the filtering effect. However, in the prior art, the maintenance and disassembly of the filter is often very laborious. Therefore, being able to quickly install and disassemble the filter is very necessary to improve the work efficiency of the staff.

[0003] At the same time, a high-seal engine filter housing with application number 202022935378.4 comprises a shell, a first threaded opening is opened in the middle of one side of the shell, a connecting block is provided in the middle of one side of the shell, 6 connecting blocks are provided, a through opening is provided between each of the connecting blocks, a groove is provided in the middle of one side of the shell, a second threaded opening is opened in the middle of the other side of the shell, an inner groove is provided in the middle of the other side of the shell, and a through hole is provided on the inner groove, and a plurality of through holes are provided, a baffle is provided on the periphery of one side of the shell, a matching first rubber pad is provided in the groove, and a matching second rubber pad is provided on the inner side of the baffle; the utility model can achieve a stable connection by providing a first threaded opening and a second threaded opening for threaded connection respectively, and by providing a first rubber pad and a second rubber pad, after the filter is docked, a sealing effect is played to prevent oil overflow, and this design is simple and practical.

[0004] During use of an existing high-sealing engine filter housing, when the filter needs to be replaced, the filter body cannot be quickly replaced, which reduces the work efficiency of the staff and may cause the threads to loosen due to external force, resulting in a decrease in sealing performance.

[0005] Therefore, a filter outer shell is proposed to solve the above problems. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a filter outer shell, which has the advantages of being able to quickly disassemble the filter and improving the sealing performance.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter outer shell, comprising a dustproof outer shell, one end of the dustproof outer shell is spirally connected to a protective shell, one end of the protective shell is spirally connected to a fixed block, one end of the fixed block is fixedly connected to a filter body, a first spring is embedded in the interior of the fixed block, one end of the first spring is fixedly connected to an L-shaped block, the interior of the L-shaped block is rotatably connected to a rotating shaft, the outer side of the rotating shaft is rotatably connected to a pull ring, a second spring is embedded in the interior of the pull ring, one end of the second spring is fixedly connected to a pressure block, both ends of the pressure block are fixedly connected to steel wires, and the other end of the steel wire is fixedly connected to one side of the L-shaped block.

[0008] Preferably, a dustproof net is embedded inside the dustproof shell, a first card block is fixedly connected to the bottom end of the dustproof net, a third spring is fixedly connected inside the first card block, a second card block is fitted on the outer side of the first card block, and the second card block is embedded inside the dustproof shell.

[0009] Preferably, a protective layer is fixedly connected to the outer side of the protective shell, and the material of the protective layer is aluminum alloy.

[0010] Preferably, a fixing sleeve is fixedly connected to the bottom end of the L-shaped block, a torsion spring is embedded inside the fixing sleeve, and the torsion spring sleeve is arranged on the outside of the rotating shaft.

[0011] Preferably, a sealing ring is attached to one side of the fixing block, and the sealing ring is made of rubber.

[0012] Preferably, a limiting ring is fixedly connected to the inner wall of the dustproof housing, there are two limiting rings, and the inner side of the limiting ring is in contact with the dustproof net.

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

[0014] 1. The utility model provides an L-shaped block. When the filter body needs to be replaced after being used for a period of time, the dustproof shell is rotated to unscrew the dustproof shell from the inside of the protective shell, and then the pressing block is pressed to squeeze the second spring embedded in the pull ring and pull the steel wires fixedly connected at both ends to drive the L-shaped block to move out of the protective shell. At this time, the fixed block is rotated to drive the filter body inside the protective shell to move out, thereby realizing rapid disassembly of the filter body. By repeating the above operation, the replaced filter body can be quickly installed, which reduces the labor intensity of the staff and has strong practical performance. Under the action of the L-shaped block, it can effectively prevent the thread from loosening under the action of external force, which causes the problem of reduced sealing performance.

[0015] 2. The utility model is provided with a dustproof net, and the dustproof net is embedded inside the dustproof shell, which can isolate the dust in the external environment, prevent serious damage to the filter body, and increase its service life. When it needs to be disassembled and cleaned, the first dustproof net is pulled to drive the first card block to move out from the inside of the second card block, thereby realizing rapid disassembly and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cutaway structure of the pull ring of the utility model;

[0019] Figure 4 This is a schematic diagram of the cutaway structure of the dustproof housing of the utility model;

[0020] Figure 5 For this utility model Figure 2 Schematic diagram of the structure at point A.

[0021] In the figure: 1. dustproof shell; 2. protective shell; 3. fixed block; 4. first spring; 5. L-shaped block; 6. rotating shaft; 7. pull ring; 8. second spring; 9. pressure block; 10. steel wire; 11. dustproof net; 12. first clamping block; 13. third spring; 14. second clamping block; 15. protective layer; 16. fixed sleeve; 17. torsion spring; 18. sealing ring; 19. limit ring; 20. filter body. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 5As shown, the utility model provides a filter outer shell, including a dustproof shell 1, one end of the dustproof shell 1 is spirally connected to a protective shell 2, one end of the protective shell 2 is spirally connected to a fixed block 3, one end of the fixed block 3 is fixedly connected to a filter body 20, a first spring 4 is embedded in the interior of the fixed block 3, one end of the first spring 4 is fixedly connected to an L-shaped block 5, under the action of the L-shaped block 5, it can effectively prevent the thread from loosening under the action of external force, causing the problem of reduced sealing performance, the interior of the L-shaped block 5 is rotatably connected to a rotating shaft 6, the outer side of the rotating shaft 6 is rotatably connected to a pull ring 7, the interior of the pull ring 7 is embedded with a second spring 8, one end of the second spring 8 is fixedly connected to a pressure block 9, both ends of the pressure block 9 are fixedly connected to steel wires 10, and the other end of the steel wire 10 is fixedly connected to one side of the L-shaped block 5.

[0024] Specifically, a dustproof net 11 is embedded inside the dustproof shell 1, a first clamping block 12 is fixedly connected to the bottom end of the dustproof net 11, a third spring 13 is fixedly connected to the inside of the first clamping block 12, a second clamping block 14 is fitted on the outer side of the first clamping block 12, and the second clamping block 14 is embedded in the inside of the dustproof shell 1. Under the action of the third spring 13, the first clamping block 12 and the second clamping block 14 are tightly fitted to prevent relative displacement due to external force, which causes the dustproof net 11 to slip out.

[0025] Furthermore, a protective layer 15 is fixedly connected to the outer side of the protective shell 2, and the material of the protective layer 15 is aluminum alloy, which can effectively protect the protective shell 2 and the filter body 20 inside, increase its service life, and reduce economic losses.

[0026] Furthermore, the bottom end of the L-shaped block 5 is fixedly connected with a fixing sleeve 16, and a torsion spring 17 is embedded inside the fixing sleeve 16, and the torsion spring 17 is sleeved on the outside of the rotating shaft 6. Under the action of the torsion spring 17, the pull ring 7 can be automatically restored, reducing the labor intensity of the staff and improving the space utilization rate.

[0027] It is worth noting that a sealing ring sheet 18 is fitted on one side of the fixing block 3, and the sealing ring sheet 18 is made of rubber. Under the action of the sealing ring sheet 18, the tightness of the connection is increased and the sealing performance is improved.

[0028] It is worth noting that the inner wall of the dustproof housing 1 is fixedly connected with a limiting ring 19, there are two limiting rings 19, and the inner side of the limiting ring 19 is in contact with the dustproof net 11. Under the action of the limiting ring 19, the position of the dustproof net 11 can be effectively limited to prevent it from shifting, thereby increasing the dustproof effect.

[0029] Among them, the dust screen 11 and the filter body 20 are existing technologies and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0030] Working principle and process:

[0031] When the filter body 20 needs to be replaced after being used for a period of time, the dustproof shell 1 is rotated to unscrew the dustproof shell 1 from the inside of the protective shell 2, and then the pressure block 9 is pressed. The pressure block 9 squeezes the second spring 8 embedded in the pull ring 7 and pulls the steel wires 10 fixedly connected at both ends to drive the L-shaped block 5 to move out from the inside of the protective shell 2. At this time, the fixing block 3 is rotated to make the fixing block 3 drive the filter body 20 inside the protective shell 2 to move out, thereby realizing the rapid disassembly of the filter body 20. By repeating the above operation, the replaced filter body 20 can be quickly installed, which reduces the labor intensity of the staff and has strong practical performance. Under the action of the L-shaped block 5, the thread loosening under the action of external force can be effectively prevented, which causes the problem of reduced sealing performance. Under the action of the torsion spring 17 embedded in the fixing sleeve 16, the pull ring 7 can be automatically restored, which reduces the labor intensity of the staff and improves the space utilization rate. The sealing set on one side of the fixing block 3 Under the action of the ring piece 18, the tightness of the connection is increased and the sealing performance is improved. Because the outer side of the protective shell 2 is fixedly connected with a protective layer 15, and the material of the protective layer 15 is aluminum alloy, the protective shell 2 and the internal filter body 20 can be effectively protected, thereby increasing its service life and reducing economic losses. The interior of the dustproof outer shell 1 is inlaid with a dustproof net 11, which can isolate dust in the external environment and prevent serious damage to the filter body 20, thereby increasing its service life. When it needs to be disassembled and cleaned, the dustproof net 11 can be pulled to drive the first clamping block 12 to move out from the inside of the second clamping block 14, thereby achieving rapid disassembly and high work efficiency. Under the action of the third spring 13, the first clamping block 12 and the second clamping block 14 are closely fitted to prevent relative displacement due to external force shaking, causing the dustproof net 11 to slide out. Under the action of the limit ring 19, the position of the dustproof net 11 can be effectively limited to prevent it from deflecting, thereby increasing the dustproof effect.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter housing, comprising a dustproof housing (1), characterized in that: One end of the dustproof housing (1) is spirally connected to a protective housing (2), one end of the protective housing (2) is spirally connected to a fixing block (3), one end of the fixing block (3) is fixedly connected to a filter body (20), a first spring (4) is embedded inside the fixing block (3), one end of the first spring (4) is fixedly connected to an L-shaped block (5), the inside of the L-shaped block (5) is rotatably connected to a rotating shaft (6), the outer side of the rotating shaft (6) is rotatably connected to a pull ring (7), a second spring (8) is embedded inside the pull ring (7), one end of the second spring (8) is fixedly connected to a pressure block (9), both ends of the pressure block (9) are fixedly connected to steel wires (10), and the other end of the steel wire (10) is fixedly connected to one side of the L-shaped block (5).

2. A filter outer shell according to claim 1, characterized in that: The dustproof housing (1) is embedded with a dustproof net (11), the bottom end of the dustproof net (11) is fixedly connected to a first clamping block (12), the interior of the first clamping block (12) is fixedly connected to a third spring (13), the outer side of the first clamping block (12) is fitted with a second clamping block (14), and the second clamping block (14) is embedded in the interior of the dustproof housing (1).

3. The filter housing according to claim 1, characterized in that: A protective layer (15) is fixedly connected to the outer side of the protective shell (2), and the material of the protective layer (15) is aluminum alloy.

4. A filter outer shell according to claim 1, characterized in that: The bottom end of the L-shaped block (5) is fixedly connected to a fixing sleeve (16), a torsion spring (17) is embedded inside the fixing sleeve (16), and the torsion spring (17) is sleeved on the outside of the rotating shaft (6).

5. The filter housing according to claim 1, characterized in that: A sealing ring sheet (18) is fitted on one side of the fixing block (3), and the sealing ring sheet (18) is made of rubber.

6. A filter outer shell according to claim 1, characterized in that: The inner wall of the dustproof housing (1) is fixedly connected to a limiting ring (19), there are two limiting rings (19), and the inner side of the limiting ring (19) is in contact with the dustproof net (11).

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