Air purifier structure

Abstract

The utility model relates to an air purifier structure which comprises an upper barrel shell, a lower barrel shell, a fan device and a middle connecting frame with a ventilation grille, the upper barrel shell and the lower barrel shell are fixedly connected to the upper end and the lower end of the middle connecting frame, the upper barrel shell is provided with a conical air duct cavity, and the fan device is arranged in the conical air duct cavity; the lower barrel shell is provided with a filter element containing cavity, and the middle connecting frame is further provided with a convex ring part. The conical air duct cavity is formed in the upper barrel shell, the effects of guiding air, increasing air pressure and increasing the air speed can be achieved, the bottom of the lower barrel shell is sealed, the filter element is replaced through the opening of the lower barrel shell, the number of structural components is reduced, the number of applied molds is reduced, the number of assembly procedures is reduced, and the production and manufacturing cost is reduced, so that the product selling price can be set within a reasonable range, and the product quality is improved. When the filter element is replaced, the whole air purifier does not need to be put down or turned over, only the middle connecting frame and the lower barrel shell need to be detached, operation is more convenient, and the structural design is more reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification equipment, in particular to a structure of an air purifier. Background Art

[0002] An air purifier, also known as an air cleaner, air freshener, or purifier, refers to a product that can adsorb, decompose, or convert various air pollutants to effectively improve air cleanliness. In existing air purifiers, for example, a technical solution disclosed in a Chinese patent document with a patent application number of 202121029481.0 and a name of "An Air Purifier" mainly includes an upper housing, an air duct housing, a fan device, a main body bracket, a base, and a lower housing. Among them, the air duct housing is arranged in the inner cavity of the upper housing, the fan device is arranged in the inner cavity of the air duct housing, the upper housing is fixedly connected to the upper end of the main body bracket, the lower housing is provided with a receiving cavity penetrating through its upper and lower ends, the lower housing is fixedly connected to the lower end of the main body bracket, and the base is detachably fixed to the lower cavity opening of the receiving cavity. When replacing the filter element, the filter element can be replaced by opening the base. However, in actual production, manufacturing, and use, there are still the following deficiencies:

[0003] First, in production and manufacturing, in order to enable the upper housing to better discharge the filtered air, a special air duct housing is designed in this solution to play the roles of guiding air and providing a mounting position for the fan device. This not only increases the overall structure of the air purifier, but also increases the number of production molds and assembly processes, resulting in a higher production cost of the air purifier. And these costs will be passed on to the product price, leading to a high price of the air purifier product.

[0004] Second, in use, since replacing the filter element requires opening the base at the bottom, at this time, the whole machine has to be placed on its side or turned over with the bottom of the whole machine facing up to open the base, so as to replace the filter element. Also, because the overall volume of existing air purifiers is not small, the operation of laying the machine down and then standing it up is very inconvenient, and the structural design is not reasonable enough. At the same time, since the lower housing and the base are of a split structure, during production, not only the assembly structure of the two and the overall structural strength after assembly need to be considered, resulting in a complex structure, but also the base needs to be produced separately with a set of molds, which will lead to a further increase in production cost.

[0005] Therefore, in view of the aforementioned deficiencies of the aforementioned air purifier products, it is very necessary to further improve its structure to better meet people's application needs. Summary of the Utility Model

[0006] The purpose of the present utility model is to solve the above problems and deficiencies, and provide an air purifier structure. By providing a conical air duct cavity in the upper cylinder shell, this air purifier structure can play the roles of guiding air, increasing air pressure, and raising air speed. It can also directly install the fan device in the upper cylinder shell, and the bottom end of the lower cylinder shell is sealed, and the filter element is replaced through its open end. In this way, while providing accommodation for filter element replacement, it also has very excellent overall structural strength, so as to reduce structural components, reduce the number of molds used, reduce assembly processes, and lower production and manufacturing costs, thereby enabling the product price to be set within a reasonable range. Moreover, when replacing the filter element, there is no need to lay down or turn over the entire air purifier, and only the middle connecting frame needs to be disassembled from the lower cylinder shell, which is more convenient to operate and the structural design is more reasonable.

[0007] The technical solution of the present utility model is realized as follows: An air purifier structure includes an upper cylinder shell, a lower cylinder shell, a fan device, and a middle connecting frame with a ventilation grille. The upper cylinder shell is fixedly connected to the upper end of the middle connecting frame. Its characteristic lies in that the upper cylinder shell is provided with a conical air duct cavity communicating with the ventilation grille, and the conical air duct cavity is a cavity structure with a wider lower end and a narrower upper end. The fan device is arranged in the conical air duct cavity; the lower cylinder shell is provided with a filter element accommodation cavity with an open top, a sealed bottom end, and air inlet mesh holes on the side. The lower cylinder shell is detachably sleeved on the lower end of the middle connecting frame through the open end, and the filter element accommodation cavity communicates with the ventilation grille; a convex ring part clamped between the upper cylinder shell and the lower cylinder shell is further provided on the middle connecting frame, and the color of the convex ring part is inconsistent with the colors of the upper cylinder shell and the lower cylinder shell to form a marking structure.

[0008] Preferably, a lower conical positioning and sleeving part is provided at the lower end of the middle connecting frame, and the open end is sleeved on the lower conical positioning and sleeving part.

[0009] Preferably, a clamping convex block part and an L-shaped clamping groove that are clamped together are further provided between the lower cylinder shell and the middle connecting frame. The L-shaped clamping groove is composed of a vertical embedding part and a horizontal locking part.

[0010] Preferably, a limiting convex strip with an arched surface is further provided on the horizontal locking part, and a limiting groove adapted to the limiting convex strip is provided on the clamping convex block part.

[0011] Preferably, an upper conical positioning and sleeving part is provided at the upper end of the middle connecting frame, and the upper cylinder shell is connected to the middle connecting frame by sleeving the lower end of the conical air duct cavity on the upper conical positioning and sleeving part.

[0012] Preferably, the present utility model further includes a plurality of locking screws. A plurality of installation convex parts are provided on the conical air duct cavity and are distributed circumferentially along its cavity wall. The locking screws penetrate from below the middle connecting frame and are locked on the installation convex parts to lock and connect the middle connecting frame and the upper cylinder shell together.

[0013] Preferably, an air outlet grille cover is further provided at the upper end of the conical air duct cavity; a snap convex part and a snap groove which are snap-fitted and connected together are further provided between the air outlet grille cover and the conical air duct cavity.

[0014] Preferably, a control panel electrically connected to the fan device is further provided on the air outlet grille cover.

[0015] Preferably, an aromatherapy box with a diffusion through-hole is further provided on the air outlet grille cover.

[0016] Preferably, a fan installation bracket integrally formed is further provided in the conical air duct cavity. The fan installation bracket is composed of a mounting base and three connecting arms annularly distributed and connected to the mounting base. The fan device includes a motor and an impeller. The motor is arranged on the mounting base, and the impeller is connected to the power output shaft of the motor.

[0017] The beneficial effects of the present utility model are as follows:

[0018] By providing a conical air duct cavity with a wide lower end and a narrow upper end on the upper cylinder shell, the present utility model can not only play a role in guiding air to increase the air pressure and improve the outlet air speed, but also enable the fan device to be directly installed in the upper cylinder shell. Such a structural design is simpler and more reliable than the prior art, omits the components of the air duct housing, reduces the number of molds used, reduces the assembly process, so as to reduce the production and manufacturing cost of the air purifier, and thus can set the product price of the air purifier within a reasonable range.

[0019] Moreover, since the lower cylinder shell is detachably sleeved on the lower end of the middle connecting frame through an open end, when replacing the filter element, it is not necessary to lay down or turn over the whole air purifier. Only by separating the middle connecting frame from the lower cylinder shell can the filter element be replaced. Such a structural design is more convenient to operate and more reasonable in structural design than the prior art.

[0020] At the same time, since the lower cylinder shell is provided with a filter element accommodating cavity with an open top, a closed bottom end, and air inlet mesh holes on the side, the closed bottom end of the lower cylinder shell replaces the filter element through its open end. In this way, while being able to accommodate the filter element for replacement, it also has very excellent overall structural strength, without separately providing a base component, so as to reduce the assembly structure, make its structure simpler, and reduce the use of molds and lower the production cost.

[0021] In addition, since the color of the convex ring part is inconsistent with that of the upper barrel shell and the lower barrel shell, it can play a role of identification, making it easy to distinguish the positions of the upper barrel shell and the lower barrel shell at a glance from the outside, thus facilitating the disassembly and replacement of the filter element. It can also play a unique color-blocking identification role on the air purifier product to form the brand identification of the product, facilitating consumers to distinguish and recognize, helping the manufacturer to establish a brand image, avoiding imitation by other manufacturers, and being conducive to the promotion and sales of the manufacturer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a three-dimensional structure diagram of the air purifier structure in the present invention.

[0023] Figure 2 FIG. is a disassembled structure diagram of the air purifier structure in the present invention.

[0024] Figure 3 FIG. is a disassembled structure diagram of the upper barrel shell, the middle connecting frame, the air outlet grille cover and the fan device in the present invention.

[0025] Figure 4 FIG. is a sectional structure diagram of the air purifier structure in the present invention.

[0026] Figure 5 FIG. is a three-dimensional structure diagram of the upper barrel shell in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] As Figure 1 shown in Figure 3 FIG., a kind of air purifier structure described in the present invention includes an upper barrel shell 1, a lower barrel shell 2, a fan device 3, and a middle connecting frame 4 with an air inlet grille 41. The upper barrel shell 1 is fixedly connected to the upper end of the middle connecting frame 4. In order to achieve the purpose proposed by the present invention, as Figure 2 shown in Figure 4As shown, the upper cylinder shell 1 is provided with a conical air duct cavity 11 communicating with the ventilation grille 41, and the conical air duct cavity 11 is a cavity structure with a wide lower end and a narrow upper end. The fan device 3 is arranged in the conical air duct cavity 11; the lower cylinder shell 2 is provided with a filter element accommodating cavity 23 with an open top 21, a closed bottom end, and air inlet mesh holes 22 on the side. The lower cylinder shell 2 is detachably sleeved on the lower end of the middle connecting frame 4 through the open top 21, and the filter element accommodating cavity 23 communicates with the ventilation grille 41; the middle connecting frame 4 is further provided with a convex ring part 42 clamped between the upper cylinder shell 1 and the lower cylinder shell 2, and the color of the convex ring part 42 is inconsistent with the colors of the upper cylinder shell 1 and the lower cylinder shell 2 to form an identification structure. By arranging the conical air duct cavity 11 on the upper cylinder shell 1, the utility model can play the roles of guiding air, increasing air pressure, and increasing wind speed, and can directly install the fan device 3 in the upper cylinder shell 1. The bottom end of the lower cylinder shell 2 is closed, and the filter element is replaced through its open top 21. In this way, while providing accommodation for filter element replacement, it also has very excellent overall structural strength, so as to reduce structural components, reduce the number of molds used, reduce assembly processes, and reduce production and manufacturing costs, thereby enabling the product price to be set within a reasonable range. Moreover, when replacing the filter element, there is no need to lay down or turn over the whole air purifier, and only the middle connecting frame and the lower cylinder shell need to be disassembled, which is more convenient to operate and the structural design is more reasonable. In the actual application process, as Figure 2 As shown, a filter element 9 is arranged in the filter element accommodating cavity 23 to form a complete air purifier.

[0028] In order to enable the lower cylinder shell 2 to be more easily sleeved on the middle connecting frame 4, as Figure 2 and Figure 3 As shown, the lower end of the middle connecting frame 4 is provided with a lower conical positioning sleeve part 43, and the open top 21 is sleeved on the lower conical positioning sleeve part 43. Through such a conical positioning structure, during sleeving, it can play a role of guiding and positioning, so that the open top 21 can be more conveniently and quickly sleeved on the lower end of the middle connecting frame 4.

[0029] In order to enable the lower cylinder shell 2 and the middle connecting frame 4 to be quickly assembled and disassembled and firmly connected, as Figure 2As shown, a snap-in convex part 24 and an L-shaped card slot 44 that are snapped together are further provided between the lower cylinder shell 2 and the middle connecting frame 4. The L-shaped card slot 44 is composed of a vertical embedding part 441 and a horizontal locking part 442. Specifically, the L-shaped card slot 44 is arranged on the lower conical positioning sleeve part 43, and the convex part 24 is arranged on the wall of the filter element accommodating cavity 23. Of course, the installation positions of the convex part 24 and the L-shaped card slot 44 can be interchanged. Through such a structural design, during the sleeved connection, by sliding the snap-in convex part 24 into the vertical embedding part 441 of the L-shaped card slot 44 and then rotating it, the snap-in convex part 24 can be slid into the horizontal locking part 442, so that the lower cylinder shell 2 and the middle connecting frame 4 can be firmly connected together. When replacing the filter element, just operate in the reverse direction to achieve quick disassembly. There is no need to use tools or pick it open with fingers, which is very convenient.

[0030] In order to make it not easy for the lower cylinder shell 2 and the middle connecting frame 4 to become loose after being assembled together, as Figure 2 shown, a limiting convex strip 443 with an arched surface is further provided on the horizontal locking part 442, and a limiting groove 25 adapted to the limiting convex strip 443 is provided on the snap-in convex part 24. Through such a structural design, the limiting groove 25 and the limiting convex strip 443 can be sleeved together to play a role in preventing sliding and loosening. When disassembling, just rotate the middle connecting frame 4 with a little more force, and the limiting groove 25 and the limiting convex strip 443 can be separated, so as to facilitate disassembly, which can improve the reliability of the assembled connection structure of the lower cylinder shell 2 and the middle connecting frame 4.

[0031] In order to make it easier for the upper cylinder shell 1 to be sleeved on the middle connecting frame 4, as Figure 3 and Figure 4 shown, an upper conical positioning sleeve part 45 is provided at the upper end of the middle connecting frame 4, and the upper cylinder shell 1 is connected to the middle connecting frame 4 by sleeving the lower end of the conical air duct cavity 11 on the upper conical positioning sleeve part 45. Through such a conical positioning structure, during sleeving, it can play a role of guiding and positioning, so that the lower end of the conical air duct cavity 11 can be more conveniently and quickly sleeved on the upper end of the middle connecting frame 4.

[0032] Since the upper cylinder shell 1 and the middle connecting frame 4 do not need to be disassembled frequently, in order to make the two more reliably and not easily loosened when connected together, as Figure 3 、 Figure 4 and Figure 5As shown in the figure, the utility model further includes a plurality of locking screws 5. A plurality of mounting convex parts 12 are arranged on the conical air duct cavity 11 along the circumferential direction of its cavity wall. The locking screws 5 penetrate from below the middle connecting frame 4 and are locked on the mounting convex parts 12 to lock and connect the middle connecting frame 4 and the upper cylinder shell 1 together. By locking the locking screws 5 from below the middle connecting frame 4, not only can a firm connection be achieved, but also the locking screws 5 are not exposed outside, are not easy to loosen, and make the overall shape of the air purifier more concise.

[0033] Since the fan device 3 is arranged in the conical air duct cavity 11, in order to prevent people's hands from reaching into the conical air duct cavity 11 and ensure the safety of use, as Figure 3 with Figure 4 shown, an air outlet grille cover 6 is further arranged at the upper end of the conical air duct cavity 11. In this way, while ensuring air outlet, the safety of use can also be ensured.

[0034] In order to make the air outlet grille cover 6 and the conical air duct cavity 11 be assembled and connected together more firmly and reliably, as Figure 3 with Figure 4 shown, a buckling convex part 61 and a buckling groove 13 which are buckled and connected together are further arranged between the air outlet grille cover 6 and the conical air duct cavity 11. Specifically, the buckling convex part 61 is arranged on the air outlet grille cover 6, and the buckling groove 13 is arranged on the conical air duct cavity 11. Of course, the installation positions of the buckling convex part 61 and the buckling groove 13 can also be interchanged. Through such a structural design, rapid assembly can be realized without the aid of tools, and it is firm and not easy to loosen.

[0035] In order to facilitate the opening and closing of the fan device 3, so as to realize the opening and closing of the air purifier, as Figure 3 shown, a control panel 7 electrically connected to the fan device 3 is further arranged on the air outlet grille cover 6.

[0036] In order to improve the use function of the air purifier, as Figure 3 shown, an aromatherapy box 8 with a diffusion through hole 81 is further arranged on the air outlet grille cover 6. In this way, aromatherapy items that can emit fragrance can be placed in the aromatherapy box 8. In this way, when air is discharged, the fragrance diffused from the diffusion through hole 81 can be carried out together to enhance the use experience.

[0037] In order to further improve the installation structure of the fan device 3 and the conical air duct cavity 11, as Figure 3 with Figure 4As shown, a fan mounting bracket 14 integrally formed is further provided in the conical air duct cavity 11. The fan mounting bracket 14 is composed of a mounting base 141 and three connecting arms 142 annularly arranged and connected to the mounting base 141. The fan device 3 includes a motor 31 and an impeller 32. The motor 31 is arranged on the mounting base 141, and the impeller 32 is connected to the power output shaft of the motor 31. Through the arrangement of the fan mounting bracket 14, not only can the fan device 3 be installed, but also the overall structural strength of the upper cylinder shell 1 can be improved, making the structure of the upper cylinder shell 1 more reliable. Through the annular arrangement of the three connecting arms 142, after connecting the mounting base 141 and the upper cylinder shell 1 together, a stable triangular support structure can be formed, which can very reliably improve the overall structural strength of the upper cylinder shell 1.

Claims

1. An air purifier structure, comprising an upper cylindrical shell (1), a lower cylindrical shell (2), a fan device (3), and a middle connecting frame (4) with a ventilation grille (41), wherein the upper cylindrical shell (1) is fixedly connected to the upper end of the middle connecting frame (4), characterized in that: The upper cylinder shell (1) is provided with a conical air duct cavity (11) which is in communication with the ventilation grille (41), and the conical air duct cavity (11) is a cavity structure with a wide lower end and a narrow upper end, and the fan device (3) is arranged in the conical air duct cavity (11); The lower cylindrical shell (2) is provided with a filter element accommodating chamber (23) with an open top (21), a sealed bottom, and a side with an air inlet mesh hole (22); the lower cylindrical shell (2) is detachably mounted on the lower end of the middle connecting frame (4) through the open top (21), and the filter element accommodating chamber (23) is in communication with the ventilation grille (41); The middle connecting frame (4) is also provided with a convex ring portion (42) clamped between the upper cylinder shell (1) and the lower cylinder shell (2), and the color of the convex ring portion (42) is inconsistent with the color of the upper cylinder shell (1) and the lower cylinder shell (2), so as to form an identification structure.

2. The air purifier structure according to claim 1, characterized in that: A lower conical positioning sleeve portion (43) is provided at the lower end of the middle connecting frame (4), and the opening (21) is sleeved on the lower conical positioning sleeve portion (43).

3. The air purifier structure according to claim 1, characterized in that: A snap-fitting protrusion portion (24) and an L-shaped slot (44) which are snap-fitted together are further provided between the lower cylinder shell (2) and the middle connecting frame (4); the L-shaped slot (44) is composed of a vertical embedding portion (441) and a horizontal locking portion (442).

4. The air purifier structure according to claim 3, characterized in that: The transverse locking portion (442) is also provided with a limiting convex strip (443) with an arched surface, and the clamping convex block portion (24) is provided with a limiting groove (25) matched with the limiting convex strip (443).

5. The air purifier structure according to claim 1, characterized in that: An upper conical positioning sleeve portion (45) is provided at the upper end of the middle connecting frame (4), and the upper cylinder shell (1) is connected to the middle connecting frame (4) by sleeve-fitting the lower end of the conical air duct cavity (11) on the upper conical positioning sleeve portion (45).

6. The air purifier structure according to claim 1, characterized in that: It also includes a plurality of locking screws (5). The conical air duct cavity (11) is provided with a plurality of mounting protrusions (12) arranged along the cavity wall thereof. The locking screws (5) penetrate from below the middle connecting frame (4) and are locked on the mounting protrusions (12) to lock the middle connecting frame (4) and the upper cylinder shell (1) together.

7. The air purifier structure according to claim 1, characterized in that: An air outlet grille cover (6) is also provided at the upper end of the conical air duct cavity (11); and a buckling convex portion (61) and a buckling groove (13) which are buckled and connected to each other are also provided between the air outlet grille cover (6) and the conical air duct cavity (11).

8. The air purifier structure according to claim 7, characterized in that: The air outlet grille cover (6) is also provided with a control panel (7) electrically connected to the fan device (3).

9. The air purifier structure according to claim 7, characterized in that: The air outlet grille cover (6) is also provided with an aromatherapy box (8) with an aromatherapy through hole (81).

10. The air purifier structure according to claim 1, characterized in that: An integrally machined fan mounting bracket (14) is also provided in the conical air duct cavity (11); the fan mounting bracket (14) is composed of a mounting seat (141) and three connecting arms (142) connected to the mounting seat (141) in a ring-shaped manner; the fan device (3) comprises a motor (31) and an impeller (32); the motor (31) is arranged on the mounting seat (141); and the impeller (32) is connected to a power output shaft of the motor (31).

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