An air purification device that is easy to maintain

Abstract

The present invention discloses an air purification device that is easy to maintain, including an outer shell, an inner shell and a guide device, wherein the outer shell is provided with an opening, and an installation cavity is formed inside the outer shell; the inner shell is installed in the outer shell from the opening, and the inner shell is equipped with air purification drugs; the guide device is connected between the outer shell and the inner shell, and the inner shell can move between a storage state and a removal state along the guide device; in the storage state, the inner shell is placed in the installation cavity; in the removal state, the inner shell is removed from the installation cavity and connected to the outer shell through the guide device; the guide device includes a guide unit and a rotating connection member, and the rotating connection member is connected between the inner shell and the guide unit, and in the removal state, the inner shell rotates along the rotating connection member to a certain angle and tilts with the outer shell. During the maintenance of the air purification device, the inner shell does not need to be removed, thereby avoiding the disassembly and assembly steps; the operation can be completed by one person with both hands, and the entire process does not require the aid of external tools, and the operation is simple and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, and in particular to an air purification device which is easy to maintain. Background Art

[0002] Air purification devices, also known as "air cleaners", air fresheners, and purifiers, refer to products that can absorb, decompose or transform various air pollutants (generally including PM2.5, dust, pollen, odor, decoration pollution such as formaldehyde, bacteria, allergens, etc.), effectively improving air cleanliness. They are mainly divided into household, commercial, industrial, and building. Existing air purification devices are generally fixed structures. For example, the patent with application number 201821999260.4 discloses an air purification device, comprising: a sheet metal shell, the sheet metal shell comprising a sheet metal upper shell and a sheet metal lower shell, the sheet metal upper shell is detachably connected to the sheet metal lower shell, one side of the sheet metal lower shell is provided with an air inlet, and the other side is provided with an air outlet; a HEPA filter, the HEPA filter is inserted in the sheet metal lower shell and is located on the side of the air inlet; a first honeycomb filter, the first honeycomb filter is inserted in the sheet metal lower shell and is located on the side of the HEPA filter; a second honeycomb filter, the second honeycomb filter is inserted in the sheet metal lower shell and is located on the side of the first honeycomb filter; an ion dust collector, the ion dust collector is inserted in the sheet metal lower shell and is located on the side of the second honeycomb filter; a metal mesh, the metal mesh is inserted in the sheet metal lower shell and is located on the side of the ion dust collector; a heating device, the heating device is inserted in the sheet metal lower shell and is located on the side of the metal mesh; An upper cover plate, which is detachably arranged at the opening of the sheet metal lower shell; A control circuit board, which is arranged on the upper cover plate and is respectively connected to the ion dust collector and the heating device. However, the outer shell of this air purification device is fixed, and the medicine used to purify the air is built into the outer shell. When the air purification device is in use, it is necessary to frequently replace the filter or place new air purification medicines. If the air purification device is installed in a position such as a ceiling, an outlet for filtering air is generally provided at the lower part of the shell, and the installation port of the medicine and the installation port of the filter are also correspondingly provided at the lower part of the shell. When the medicine is replaced, it is very inconvenient for people to perform maintenance operations in a state of looking up. First, it is not convenient to have a correct viewing angle to observe the internal structure of the air purification device; second, since the air purification device will inevitably have dust attached after long-term use, therefore, when the operator performs maintenance on the air purification device, dust will inevitably fall into the eyes, affecting the vision. Therefore, the designs of existing air purification devices are not ideal. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an air purification device that is easy to maintain to solve many problems of the prior art.

[0004] To achieve the above object, the embodiment of the present invention adopts the following technical solution: an air purification device that is easy to maintain, comprising:

[0005] A housing, wherein the housing is provided with an opening and an installation cavity is formed inside the housing;

[0006] An inner shell, the inner shell is installed in the outer shell from the opening, and the inner shell contains air purification medicine;

[0007] A guide device, the guide device is connected between the outer shell and the inner shell, and the inner shell can move along the guide device between a storage state and a removal state;

[0008] In the storage state, the inner shell is placed in the installation cavity;

[0009] In the removed state, the inner shell is removed from the installation cavity and connected to the outer shell through the guiding device;

[0010] The guiding device comprises a guiding unit and a rotating connecting member, wherein the rotating connecting member is connected between the inner shell and the guiding unit. In the removed state, the inner shell rotates along the rotating connecting member at a certain angle to form a state of being relatively inclined with the outer shell.

[0011] Preferably, the guide unit includes a guide rail and a guide arm assembly, the guide rail extends along the moving direction of the inner shell, the guide arm assembly includes a first guide arm that moves along the guide rail, a second guide arm that is connected to the first guide arm and can move along the first guide arm, and the rotating connecting member is rotatably connected to the second guide arm.

[0012] Preferably, the first guide arm has a first guide arm body, two guide arms arranged in parallel and spaced apart, a guide groove is formed between the two guide arms and the guide arm body, and the second guide arm has a second guide arm body, two slide rails extending into the guide groove and cooperating with the corresponding guide arms.

[0013] Preferably, the guide rail is arranged on the side wall of the outer shell, the first guide arm is connected to the outer shell through the guide rail, the second guide arm has a rotation adjustment groove, the rotation adjustment groove extends along the moving direction of the inner shell, the rotating connecting piece is located on the side wall of the inner shell and corresponds to the position of the rotation adjustment groove, one end of the rotating connecting piece extends into the rotation adjustment groove and can rotate in the rotation adjustment groove and cannot escape from the rotation adjustment groove.

[0014] Preferably, the air purification device that is easy to maintain also includes a self-locking connection structure, which includes a locking unit and a lock buckle, wherein the locking unit is arranged on one of the inner shell or the outer shell, and the lock buckle is arranged on the other of the inner shell or the outer shell, and when the inner shell is in a stored state, the locking unit and the lock buckle are locked and connected to each other, and the inner shell cannot be removed from the outer shell; when the inner shell is in a removed state, the locking unit and the lock buckle are separated from each other.

[0015] Preferably, the locking unit includes a lock shell and an internal control component, the internal control component is placed in the lock shell, the internal control component includes an elastic lock, a slider, a lock hook, and a clamping claw, the lock shell is fixed to the side wall of the shell, the slider moves relative to the lock shell along the moving direction of the inner shell, the slider is provided with a locking control slide groove, the elastic lock has an elastic telescopic force along the moving direction of the inner shell, one end of the elastic lock is fixed to the lock shell, the other end of the elastic lock is connected to the slider, one end of the lock hook is fixed to the lock shell, the other end of the lock hook extends into the locking control slide groove and moves between a locking position and an unlocking position under the action of the elastic lock, two clamping claws are provided and are installed on the slider to move with the slider, a clamping groove is formed between the two clamping claws, when the lock hook is in the locking position, the two clamping claws approach each other to clamp the lock buckle and the inner shell cannot move relative to the outer shell, when the lock hook is in the unlocking position, the two clamping claws move away from each other, the lock hook disengages from the clamping groove and the inner shell can move relative to the outer shell.

[0016] Preferably, the lock hook has a rotating end and a sliding end, the rotating end of the lock hook is rotatably mounted on the inner wall of the lock element shell, and the locking control slide groove is arranged with a first locking position and a second locking position at intervals along the moving direction of the inner shell, the second locking position is closer to the opening of the shell relative to the first locking position, when the lock hook is in the locked position, the sliding end of the lock hook is limited in the second locking position and the elastic lock element is compressed, and when the lock hook is in the unlocked position, the sliding end of the lock hook is limited in the first locking position and the elastic lock element is not compressed.

[0017] Preferably, one end of the two clamps connected to the slider can rotate relative to the slider, the slider is provided with two support shafts for mounting the clamps, the support shafts are provided with torsion springs, and the two clamps have a rotational force moving away from each other under the action of the corresponding torsion springs.

[0018] Preferably, a mounting groove is provided on the side wall of the outer shell, the mounting groove is opened by the opening of the outer shell along the moving direction of the inner shell, the locking unit is fixed in the mounting groove, the side wall of the inner shell is provided with a connecting groove at a position corresponding to the mounting groove, and the lock buckle is located in the connecting groove.

[0019] Preferably, the lock shell is provided with a guide slot along the moving direction of the inner shell, and the slider is slidably arranged in the guide slot.

[0020] The beneficial effects of the present invention are as follows: during the entire maintenance process of the air purification device described in the present invention, there is no need to remove the inner shell, thereby avoiding the disassembly and assembly steps; the operation can be completed by one person with both hands, without the assistance of others; the entire process does not require the use of external tools, and the operation is simple and convenient; the inner shell is rotated at a certain angle relative to the outer shell, and the medicine can be conveniently replaced for later maintenance without removing the inner shell; when in use, there is no need to look up for maintenance, and the internal structure of the air purification device can be observed at a comfortable and correct viewing angle, dust will not fall into the eyes, thereby protecting the eyes and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Attached Figure 1 The above is a three-dimensional diagram of the air purification device that is easy to maintain according to the present invention.

[0022] Attached Figure 2 Shown is a schematic structural diagram of the main view direction of the air purification device that is easy to maintain according to the present invention.

[0023] Attached Figure 3 It is a schematic structural diagram of the air purification device easy to maintain according to the present invention, showing the state where the inner shell is pulled out from the outer shell.

[0024] Attached Figure 4 for Figure 3 Exploded diagram of .

[0025] Attached Figure 5 A schematic diagram showing the inner housing rotated at a certain angle relative to the outer housing.

[0026] Attached Figure 6 for Figure 5 A schematic diagram of the structure from another angle, showing the inner shell rotated at a certain angle relative to the outer shell.

[0027] Attached Figure 7 It is an exploded view, which specifically shows the structure of the guiding device.

[0028] Attached Figure 8 The structure of the locking unit shows the state of the locking unit when the inner shell is in the storage state.

[0029] Attached Fig. 9 FIG. 1 is the structure of the locking unit, showing the state of the locking unit when the inner shell is in the removed state.

[0030] Attached Fig.10 A schematic diagram of the structure of the guiding device.

[0031] Attached Fig.11It is a schematic structural diagram of the first guide arm.

[0032] Attached Fig.12 It is a schematic structural diagram of the second guide arm.

[0033] Reference numerals:

[0034] 1. Shell, 101. Opening, 102. Mounting cavity, 103. Connecting hole, 104. Isolation plate, 2. Inner shell, 202. Limiting part, 3. Guide device, 301. Guide unit, 302. Rotating connecting member, 4. Guide rail, 5. Guide arm assembly, 501. First guide arm, 502. Second guide arm, 6. First guide arm body, 61. Limiting member, 7. Guide arm, 8. Guide groove, 9. Second guide arm body, 91. First stopper, 92. Second stopper, 10. Slide rail, 11. Rotating adjustment groove, 12. Self-locking connection structure, 1201. Locking unit, 1202. Lock buckle, 13 , lock housing, 14, internal control component, 1401, elastic lock, 1402, slider, 1403, lock hook, 1404, clamping claw, 15, locking control slide groove, 16, clamping groove, 17, rotating end, 18, sliding end, 19, first locking position, 20, second locking position, 21, supporting shaft, 22, mounting groove, 23, connecting groove, 24, guide slide groove, 25, accommodating chamber. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] In order to solve the above technical problems, the present invention provides an air purification device that is easy to maintain to solve many problems of the prior art.

[0038] like Figures 1 to 12As shown, it is a preferred embodiment of the air purification device that is easy to maintain provided by the present invention. In this embodiment, the air purification device includes: an outer shell 1, an inner shell 2, and a guide device 3. The outer shell 1 is provided with an opening 101. The interior of the outer shell 1 forms an installation cavity 102. The opening 101 is also detachably provided with a door body, and the door body limits the inner shell in the installation cavity 102 of the outer shell 1. The inner shell 2 is installed in the outer shell 1 from the opening 101, and a receiving cavity 25 is provided in the inner shell 2, and an air purification drug is placed in the receiving cavity 25 (not shown). Generally, the air purification drug is an air purification material with a self-volatile function. The receiving cavity 25 has a drug input port, and the drug input port is covered with an isolation plate 104, and the isolation plate 104 is provided with a drug volatilization hole. A connecting hole 103 is provided on one side of the outer shell 1 relative to the opening 101, and the connecting hole 103 is connected to the receiving cavity 25 through the drug volatilization hole.

[0039] The guide device 3 is connected between the outer shell 1 and the inner shell 2, and the inner shell 2 can be in a storage state (such as attached) along the guide device 3. Figure 1 ) and a moved-out state (as shown in the attached Figure 2 In the storage state, the inner shell 2 is placed in the installation cavity 102; in the removal state, the inner shell 2 is removed from the installation cavity 102 and connected to the outer shell 1 through the guiding device 3.

[0040] Specifically, the guiding device 3 includes a guiding unit 301 and a rotating connecting member 302, and the rotating connecting member 302 is connected between the inner shell 2 and the guiding unit 301. In the removed state, the inner shell 2 rotates along the rotating connecting member 302 at a certain angle to form a state of relative inclination with the outer shell 1.

[0041] Specifically, the guide unit 301 includes a guide rail 4 and a guide arm assembly 5, the guide rail 4 extends along the moving direction of the inner shell 2, the guide arm assembly 5 includes a first guide arm 501 moving along the guide rail 4, a second guide arm 502 connected to the first guide arm 501 and capable of moving along the first guide arm 501, and the rotating connection member 302 is rotatably connected to the second guide arm 502. Specifically, as shown in the attached Figure 5 As shown, the inner shell 2 is provided with a limiting portion, and the limiting portion 202 is formed on the outer wall of the inner shell 2 and at one end away from the drug inlet. The function of the limiting portion 202 is mainly to limit the rotation angle of the inner shell 2. Generally, in order to meet ergonomic requirements and to facilitate the replacement of drugs at a convenient angle, the rotation angle of the inner shell 2 relative to the outer shell 1 is preferably set at 30°~60°. The limiting portion 202 can be as shown in the attached Figure 5The figure shows a protruding structure arranged on the side wall of the inner shell 2. The protruding structure limits the rotation angle of the second guide arm 502 relative to the inner shell 2, that is, the rotation angle of the inner shell is limited by the rotation of the second guide arm 502.

[0042] like Fig.11 , 12 As shown, the first guide arm 501 has a first guide arm body 6, two guide arms 7 arranged in parallel and spaced apart, a guide slot 8 is formed between the two guide arms 7 and the guide arm body 6, and the second guide arm 502 has a second guide arm body 9, two slide rails 10 extending into the guide slot 8 and cooperating with the corresponding guide arms 7. A stopper 61 for limiting the movement of the second guide arm 502 is provided at one end of the first guide arm body 6 close to the rotation adjustment slot 11, and a first stopper 91 and a second stopper 92 are respectively protruded at both ends of the second guide arm body 9 in the moving direction of the second guide arm 502, and the first stopper 91 and the second stopper 92 cooperate with the stopper 61 to limit the moving stroke of the second guide arm 502.

[0043] Specifically, the guide rail 4 is arranged on the side wall of the outer shell 1, the first guide arm 501 is connected to the outer shell 1 through the guide rail 4, the second guide arm 502 has a rotation adjustment slot 11, the rotation adjustment slot 11 extends along the moving direction of the inner shell 2, the rotation connection member 302 is located on the side wall of the inner shell 2 and corresponds to the position of the rotation adjustment slot 11, one end of the rotation connection member 302 extends into the rotation adjustment slot 11 and can rotate in the rotation adjustment slot 11 and cannot escape from the rotation adjustment slot 11. The rotation adjustment slot 11 is located between the two slide rails 10.

[0044] Specifically, the air purification device that is easy to maintain also includes a self-locking connection structure 12, and the self-locking connection structure 12 includes a locking unit 1201 and a lock 1202. The locking unit 1201 is arranged on one of the inner shell 2 or the outer shell 1, and the lock 1202 is arranged on the inner shell 2 or the outer shell 1. When the inner shell 2 is in a storage state, the locking unit 1201 and the lock 1202 are mutually locked and connected, and the inner shell 2 cannot be removed from the outer shell 1; when the inner shell 2 is in a removed state, the locking unit 1201 and the lock 1202 are separated from each other. When the self-locking connection structure 12 is set, the outer shell 1 cancels the door body. At this time, the limiting of the inner shell 2 relative to the outer shell 1 is mainly achieved by the self-locking connection structure 12. The door body is not set as a necessary element. The air purification device shown in the drawings of this embodiment is to achieve the limiting of the inner shell 2 by setting the self-locking connection structure 12.

[0045] Specifically, the locking unit 1201 includes a lock housing 13 and an internal control component 14, the internal control component 14 is placed in the lock housing 13, the internal control component 14 includes an elastic lock 1401, a slider 1402, a lock hook 1403, and a clamp 1404, the lock housing 13 is fixed to the side wall of the outer shell 1, the slider 1402 moves relative to the lock housing 13 along the moving direction of the inner shell 2, the slider 1402 is provided with a locking control slide groove 15, the elastic lock 1401 has an elastic telescopic force along the moving direction of the inner shell 2, one end of the elastic lock 1401 is fixed to the lock housing 13, the other end of the elastic lock 1401 is connected to the slider 1402, and the lock hook 1403 is connected to the slider 1404. One end of 403 is fixed on the lock housing 13, and the other end of the lock hook 1403 extends into the lock control slide groove 15 and moves between a locked position and an unlocked position under the action of the elastic lock 1401. Two clamping jaws 1404 are provided and are installed on the slider 1402 and move with the slider 1402. A clamping groove 16 is formed between the two clamping jaws 1404. When the lock hook 1403 is in the locked position, the two clamping jaws 1404 are close to each other to clamp the lock buckle 1202 and the inner shell 2 cannot move relative to the outer shell 1. When the lock hook 1403 is in the unlocked position, the two clamping jaws 1404 are away from each other, the lock hook 1403 is detached from the clamping groove and the inner shell 2 can move relative to the outer shell 1.

[0046] Specifically, the lock hook 1403 has a rotating end 17 and a sliding end 18, and the rotating end 17 of the lock hook 1403 is rotatably installed on the inner wall of the lock element shell 13, and the locking control slide groove 15 is arranged with a first locking position 19 and a second locking position 20 at intervals along the moving direction of the inner shell 2, and the second locking position 20 is close to the opening 101 of the shell 1 relative to the first locking position 19. When the lock hook 1403 is in the locked position, the sliding end 18 of the lock hook 1403 is limited at the second locking position 20 and the elastic lock element 1401 is compressed. When the lock hook 1403 is in the unlocked position, the sliding end 18 of the lock hook 1403 is limited at the first locking position 19 and the elastic lock element 1401 is not compressed.

[0047] Specifically, one end of the two clamping jaws 1404 connected to the slider 1402 can rotate relative to the slider 1402. The slider 1402 is provided with two support shafts 21 for installing the clamping jaws 1404. The support shafts 21 are installed with torsion springs (not shown in the figure). The two clamping jaws 1404 have a rotational force away from each other under the action of the corresponding torsion springs.

[0048] Specifically, the side wall of the outer shell 1 is provided with a mounting groove 22, the mounting groove 22 is opened by the opening 101 of the outer shell 1 along the moving direction of the inner shell 2, the locking unit 1201 is fixed in the mounting groove 22, the side wall of the inner shell 2 is provided with a connecting groove 23 at a position corresponding to the mounting groove 22, and the lock buckle 1202 is located in the connecting groove 23. The lock shell 1 is provided with a guide groove 24 along the moving direction of the inner shell 2, and the slider 1402 is slidably arranged in the guide groove 24.

[0049] like Figure 8 As shown, when the inner shell 2 is received in the outer shell 1, the two clamping jaws 1404 are located in the guide slot 24, and under the action of the guide slot 24, the two clamping jaws 1404 are close to each other to clamp the lock buckle 1202. Fig. 9 As shown, when the elastic lock 1401 pushes the slider 1402 to move, so that the two ends of the two clamping jaws 1404 move out of the guide slot 24, the limit of the guide slot 24 is missing, and under the torsion of the torsion spring, the two clamping jaws 1404 separate. At this time, the lock buckle 1202 can be separated from the two clamping jaws 1404. That is, at this time, the limit of the inner shell 2 relative to the outer shell 1 is eliminated, and the inner shell 2 can be moved out from the outer shell 1 along the guide device 3.

[0050] When the air purification device of the present invention is in use, when the air purification medicine (air purification material, etc.) in the inner shell 2 needs to be replaced or the inner shell 2 needs to be maintained, Figure 1 In the above state, the user applies pressure to the outer shell 1 and the inner shell 2 with both hands, the elastic locking member 1401 is further compressed, the end of the lock hook 1403 restricted by the second latching position 20 is separated from the second latching position 20, and the lock hook 1403 moves upward along the locking control slot 15 (to Figure 8 ), the elastic lock 1401 is released and pushes the slider 1402 downward until the end of the lock hook 1403 moves to the first latching position 19 and is limited by the first latching position 19. At this time, the limit of the inner shell 2 relative to the outer shell 1 is released, and the inner shell 2 can be pulled along the guide device 3. During the process of pulling the inner shell 2 out of the outer shell, the second guide arm 502 moves relative to the first guide arm 501 so that the overall size of the guide arm assembly 5 is elongated, thereby supporting the movement of the inner shell 2 shown. When the second guide arm 502 moves to the position limited by the first guide arm 501, the inner shell 2 is rotated so that the inner shell 2 rotates a certain angle relative to the outer shell 1. Figure 5In the state shown, the air purification medicine is smoother. During the entire maintenance process, there is no need to remove the inner shell 2, thus avoiding the disassembly and assembly steps. One person can complete the operation with both hands, without the assistance of others. The entire process does not require the aid of external tools, and the operation is simple and convenient. The inner shell 2 is rotated at a certain angle relative to the outer shell 1, so that the medicine can be conveniently replaced for later maintenance without removing the inner shell 2.

[0051] 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. An air purification device that is easy to maintain, characterized in that: include: A housing, wherein the housing is provided with an opening and an installation cavity is formed inside the housing; An inner shell, the inner shell is installed in the outer shell from the opening, and the inner shell contains air purification medicine; A guide device, the guide device is connected between the outer shell and the inner shell, and the inner shell can move along the guide device between a storage state and a removal state; In the storage state, the inner shell is placed in the installation cavity; In the removed state, the inner shell is removed from the installation cavity and connected to the outer shell through the guiding device; The guiding device comprises a guiding unit and a rotating connecting member, wherein the rotating connecting member is connected between the inner shell and the guiding unit. In the removed state, the inner shell rotates along the rotating connecting member at a certain angle to form a state of being relatively inclined with the outer shell.

2. The air purification device easy to maintain according to claim 1 is characterized in that: The guide unit includes a guide rail and a guide arm assembly, the guide rail extends along the moving direction of the inner shell, the guide arm assembly includes a first guide arm that moves along the guide rail, a second guide arm that is connected to the first guide arm and can move along the first guide arm, and the rotating connecting member is rotatably connected to the second guide arm.

3. The air purification device easy to maintain according to claim 2 is characterized in that: The first guide arm comprises a first guide arm body, two guide arms arranged in parallel and spaced apart, a guide groove is formed between the two guide arms and the guide arm body, and the second guide arm comprises a second guide arm body, two slide rails extending into the guide groove and cooperating with the corresponding guide arms for limiting positions.

4. The air purification device easy to maintain according to claim 2 or 3, characterized in that: The guide rail is arranged on the side wall of the outer shell, the first guide arm is connected to the outer shell through the guide rail, the second guide arm has a rotation adjustment groove, the rotation adjustment groove extends along the moving direction of the inner shell, the rotation connecting piece is located on the side wall of the inner shell and corresponds to the position of the rotation adjustment groove, one end of the rotation connecting piece extends into the rotation adjustment groove and can rotate in the rotation adjustment groove and cannot escape from the rotation adjustment groove.

5. The air purification device easy to maintain according to claim 1 or 2, characterized in that: The air purification device that is easy to maintain also includes a self-locking connection structure, which includes a locking unit and a lock buckle. The locking unit is arranged on one of the inner shell or the outer shell, and the lock buckle is arranged on the other of the inner shell or the outer shell. When the inner shell is in a stored state, the locking unit and the lock buckle are locked and connected with each other, and the inner shell cannot be moved out of the outer shell; when the inner shell is in a removed state, the locking unit and the lock buckle are separated from each other.

6. The air purification device easy to maintain according to claim 5, characterized in that: The locking unit comprises a lock housing and an internal control component, wherein the internal control component is placed in the lock housing, and the internal control component comprises an elastic lock, a slider, a lock hook, and a clamping claw. The lock housing is fixed to the side wall of the housing, and the slider moves relative to the lock housing along the moving direction of the inner shell. The slider is provided with a locking control sliding groove, and the elastic lock has an elastic telescopic force along the moving direction of the inner shell, one end of the elastic lock is fixed to the lock housing, and the other end of the elastic lock is connected to the slider, one end of the lock hook is fixed to the lock housing, and the other end of the lock hook extends into the locking control sliding groove and moves between a locking position and an unlocking position under the action of the elastic lock, and two clamping claws are provided and are installed on the slider to move with the slider, and a clamping groove is formed between the two clamping claws. When the lock hook is in the locking position, the two clamping claws approach each other to clamp the lock buckle and the inner shell cannot move relative to the outer shell, and when the lock hook is in the unlocking position, the two clamping claws move away from each other, the lock hook disengages from the clamping groove, and the inner shell can move relative to the outer shell.

7. The air purification device easy to maintain according to claim 6, characterized in that: The lock hook has a rotating end and a sliding end, the rotating end of the lock hook is rotatably mounted on the inner wall of the lock element shell, the locking control slide groove is arranged with a first locking position and a second locking position at intervals along the moving direction of the inner shell, the second locking position is closer to the opening of the shell relative to the first locking position, when the lock hook is in the locking position, the sliding end of the lock hook is limited in the second locking position and the elastic lock element is compressed, when the lock hook is in the unlocking position, the sliding end of the lock hook is limited in the first locking position and the elastic lock element is not compressed.

8. The air purification device easy to maintain according to claim 6, characterized in that: One end of the two clamping jaws connected to the slider can rotate relative to the slider, and the slider is provided with two supporting shafts for mounting the clamping jaws, and the supporting shafts are provided with springs, and the two clamping jaws have a rotational force moving away from each other under the action of corresponding torsion springs.

9. The air purification device easy to maintain according to claim 6, characterized in that: The side wall of the outer shell is provided with an installation groove, the installation groove is opened by the opening of the outer shell along the moving direction of the inner shell, the locking unit is fixed in the installation groove, the side wall of the inner shell is provided with a connecting groove at a position corresponding to the installation groove, and the lock buckle is located in the connecting groove.

10. The air purification device easy to maintain according to claim 6, characterized in that: The lock shell is provided with a guide slot along the moving direction of the inner shell, and the slider is slidably arranged in the guide slot.

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