CN219103232U

CN219103232U - Filter screen fixing device of fresh air device

Info

Publication number: CN219103232U
Application number: CN202320003776.3U
Authority: CN
Inventors: 王勇
Original assignee: Shenzhen Hengfeng Filter Industry Co ltd
Current assignee: Shenzhen Hengfeng Filter Industry Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-05-30
Anticipated expiration: 2033-01-03

Abstract

The utility model discloses a filter screen fixing device of a fresh air device, which belongs to the technical field of fresh air conditioners and comprises a main body, a fixing head, a shell and a return spring, wherein a cavity is formed in the main body, an opening is formed in the right side of the main body, a groove is formed in the opening of the right side of the main body, a filter screen is movably installed in the groove, a plurality of square holes are formed in the inner wall of the periphery of the groove in the right side of the main body, the shell is movably installed in the square holes, the fixing head is arranged in front of the shell, and the rear end of the fixing head is fixedly connected with a connecting column. According to the filter screen fixing device of the fresh air device, the return spring is sleeved on the outer peripheral surface of the connecting column, so that the fixing head fixedly connected with the front of the connecting column moves inside and outside the shell, the fixing head is used for fixing the filter screen when the return spring is not stressed, and the return spring is compressed when the return spring is stressed, and meanwhile, the fixing head moves towards the inside of the shell, so that the filter screen can be taken out or installed.

Description

Filter screen fixing device of fresh air device

Technical Field

The utility model belongs to the technical field of fresh air conditioners, and particularly relates to a filter screen fixing device of a fresh air device.

Background

The fresh air device of the prior art can effectively filter outdoor dust, so that indoor air is cleaner, the fresh air device is more beneficial to the health of people, and moreover, dust in outdoor air can be effectively prevented from depositing in the fresh air device when passing through an indoor unit inner fan, and the fan cannot be cleaned and the service life is reduced.

At present, after a long time of use, some filter screens in the market can generate thick dirt on one layer, and people generally adopt to replace a new filter screen, but the screw fixed on the shell is required to be removed when the new filter screen is replaced, so that the replacement is complex, the operation is slower, and the efficiency is lower, and therefore, the filter screen fixing device of the fresh air device is provided, and the filter screen can be replaced without disassembling the screw, so that the problems are solved.

Disclosure of Invention

Aiming at one or more of the defects or improvement demands of the prior art, the utility model provides the filter screen fixing device of the fresh air device, which has the advantages of simple operation and improved replacement efficiency.

In order to achieve the above purpose, the utility model provides a filter screen fixing device of a fresh air device, which comprises a main body, a fixing head, a shell and a return spring, wherein the inside of the main body is a cavity, an opening is formed in the right side of the main body, a groove is formed in the opening of the right side of the main body, a filter screen is movably installed in the groove, a plurality of square holes are formed in the inner wall of the periphery of the groove on the right side of the main body, the shell is movably installed in the square holes, the fixing head is arranged in front of the shell, the rear end of the fixing head is fixedly connected with a connecting column, the other end of the connecting column is movably connected with a fixing block, the peripheral surface of the connecting column is movably connected with a limiting plate, the return spring is positioned between the fixing head and the limiting plate, the shell is formed by two identical square blocks, one side of the combination surface of the shell is provided with the opening and extends to the inside, the connecting column, the fixing block and the return spring are all positioned in the shell, the center of the limiting plate is provided with a through hole, and the limiting plate is movably connected with the peripheral surface of the connecting column through the through hole.

As a further improvement of the utility model, a notch is formed in the front inner wall and the rear inner wall of the right side of the main body, and the depth of the notch is larger than that of the groove.

As a further improvement of the utility model, the length of the shell is consistent with the depth of the square hole, and the distance from the inner wall of one side of the shell to the bottom of the groove is consistent with the thickness of the filter screen.

As a further improvement of the present utility model, the length of the fixing head connected to the connecting post and the fixing block is smaller than the depth of the opening inside the housing.

As a further improvement of the utility model, the outer peripheral surface of the connecting column is sleeved with a return spring, the return spring is positioned between the fixed head and the limiting plate, and the length of the return spring is slightly longer than the distance between the fixed head and the limiting plate.

As a further improvement of the utility model, a limit groove is formed in the shell and is positioned at the rear part, and the limit plate is movably arranged in the limit groove.

As a further improvement of the utility model, the fixing head is trapezoid-shaped and has a smooth front end, and the size of the fixing head is matched with the opening of the inner wall of the shell.

In general, the above technical solutions conceived by the present utility model have the beneficial effects compared with the prior art including:

1. according to the filter screen fixing device of the fresh air device, fingers enter the bottom of the filter screen from the notch through the notches arranged on the two sides of the inner wall of the main body, so that the filter screen can be conveniently taken out from the inside of the main body.

2. According to the filter screen fixing device of the fresh air device, the return spring is sleeved on the outer peripheral surface of the connecting column, so that the fixing head fixedly connected with the front of the connecting column moves inside and outside the shell, the fixing head is used for fixing the filter screen when the return spring is not stressed, and the return spring is compressed when the return spring is stressed, and meanwhile, the fixing head moves towards the inside of the shell, so that the filter screen can be taken out or installed.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a right side view of the structure of the present utility model;

FIG. 3 is a schematic view of the connection of the structural shell of the present utility model;

FIG. 4 is a schematic view of a structural enclosure of the present utility model;

FIG. 5 is a schematic view of the interior of the structural enclosure of the present utility model;

FIG. 6 is a schematic view of the mounting of a structural restraint plate of the present utility model;

fig. 7 is a schematic view of a limiting plate according to the present utility model.

Like reference numerals denote like technical features throughout the drawings, in particular: 1. a main body; 2. a filter screen; 3. a notch; 4. a groove; 5. square holes; 6. a fixed head; 7. a housing; 8. a limit groove; 9. a connecting column; 10. a fixed block; 11. a return spring; 12. a limiting plate; 13. and (5) perforating.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

The utility model provides a filter screen fixing device of new trend device, the power distribution device comprises a main body 1, a fixed head 6, a shell 7, a return spring 11, the inside cavity that is of main body 1 and right side are equipped with the opening, recess 4 has been seted up to main body 1 right side opening part, movable mounting has filter screen 2 in the recess 4, a plurality of square holes 5 have been seted up to inner wall all around in recess 4 on main body 1 right side, shell 7 movable mounting is in square hole 5, the place ahead of shell 7 is equipped with fixed head 6, fixed head 6 rear end fixedly connected with spliced pole 9, spliced pole 9 other end swing joint has fixed block 10, spliced pole 9 outer peripheral face swing joint has limiting plate 12, return spring 11 is located fixed head 6 and limiting plate 12 in the middle, shell 7 comprises two same squares and one side combined surface is equipped with the opening and extends to inside, spliced pole 9, fixed block 10, return spring 11, limiting plate 12 all is located shell 7, perforation 13 has been seted up at limiting plate 12 center, limiting plate 12 is movably connected in the outer peripheral face of spliced pole 9 through perforation 13.

In this embodiment, first both hands forefinger inserts the bottom to filter screen 2 in opening 3, then buckle filter screen 2 bottom and make filter screen 2 and main part 1 separate hard, because filter screen 2 top and fixed head 6 are laminated mutually simultaneously and fixed head 6 is fixed filter screen 2 this moment, therefore filter screen 2 atress makes fixed head 6 shrink to the inside of shell 7, thereby make filter screen 2 take out from main part 1 and change, fixed head 6 atress this moment, return spring 11 is compressed state simultaneously, and return spring 11 cover locates the outer peripheral face of spliced pole 9, spliced pole 9 front end is connected with fixed head 6, spliced pole 9 slides in limiting plate 12 center department of installation in shell 7 through perforation 13, return spring 11 is located between fixed head 6 and the limiting plate 12, consequently, return spring 11 makes fixed head 6 outwards stretch out, fixed block 10 that spliced pole 9 rear end is connected limits spliced pole 9, and then prevent that its place ahead fixed head 6 from breaking away from the inside of shell, then with new filter screen 2 aim at recess 4 extrusion, 2 bottom and fixed head 6 contact shrink with fixed head 6, thereby the fixed head 6 shrink by force, the spliced pole 2 is laminated with the limiting plate 12, fixed head 2 is fixed with fixed filter screen 6 simultaneously, fixed purpose is reached.

Specifically, referring to fig. 3, a notch 3 is formed in the front and rear inner walls of the right side of the main body 1, and the depth of the notch 3 is greater than that of the groove 4.

In this embodiment, through the main part 1 right side front and back inner wall department of setting up seted up opening 3, the degree of depth of opening 3 is greater than the degree of depth of recess 4 for the finger can follow opening 3 and go deep into filter screen 2 bottom, thereby can conveniently take out the purpose of filter screen 2.

Specifically, referring to fig. 3, the length of the housing 7 is consistent with the depth of the square hole 5, and the distance from the inner wall of one side of the housing 7 to the bottom of the groove 4 is consistent with the thickness of the filter screen 2.

In this embodiment, through the square hole 5, the casing 7 can be wedged with the square hole 5, and the distance from the inner wall of one side of the casing 7 to the bottom of the groove 4 is consistent with the thickness of the filter screen 2, so that the fixing head 6 is attached to the filter screen 2 when extending out of the casing 7, and the fixing head 6 fixes the filter screen 2.

Specifically, referring to fig. 5, the length of the connection of the fixing head 6 with the connection post 9 and the fixing block 10 is smaller than the depth of the opening inside the housing 7.

In this embodiment, the length that is connected with the connecting column 9 and the fixing block 10 through the fixing head 6 that sets up is less than the inside open-ended degree of depth of shell 7, and the size overlength can not shrink smoothly when avoiding fixing head 6 shrink to guide filter screen 2 to take out or install and go into.

Specifically, referring to fig. 6, a return spring 11 is sleeved on the outer peripheral surface of the connecting column 9, the return spring 11 is located between the fixed head 6 and the limiting plate 12, and the length of the return spring 11 is slightly larger than the distance between the fixed head 6 and the limiting plate 12.

In this embodiment, the length of the return spring 11 is slightly longer than the distance between the fixing head 6 and the limiting plate 12, so that the return spring 11 maintains a certain resilience force, and the fixing head 6 can maintain an extending shape to fix the filter screen 2.

Specifically, referring to fig. 5, a limiting groove 8 is formed in the housing 7 and located at the rear, and a limiting plate 12 is movably mounted in the limiting groove 8.

In this embodiment, through the limiting groove 8, the limiting plate 12 is movably installed in the limiting groove 8, so as to limit the extension length of the connecting column 9.

Specifically, referring to fig. 5, the fixing head 6 has a trapezoid shape and the front end of the fixing head 6 is smooth, and the size of the fixing head 6 is adapted to the opening of the inner wall of the housing 7.

In this embodiment, the fixing head 6 is trapezoidal and the front end of the fixing head 6 is smooth, and the size of the fixing head 6 is matched with the opening of the inner wall of the casing 7, so that the filter screen 2 cannot be taken out or installed due to the fact that the fixing head 6 cannot enter the casing 7 when excessively contracted.

Working principle:

the utility model relates to a filter screen fixing device of a fresh air device, which comprises: firstly, the two forefingers are inserted into the notch 3 to the bottom of the filter screen 2, then the bottom of the filter screen 2 is buckled to forcefully separate the filter screen 2 from the main body 1, and because the top of the filter screen 2 is attached to the fixed head 6 and the fixed head 6 is used for fixing the filter screen 2 at the moment, the fixed head 6 is contracted towards the inside of the shell 7, thereby the filter screen 2 is taken out from the main body 1 and replaced, the fixed head 6 is not stressed, the return spring 11 is in a compressed state, the return spring 11 is sleeved on the peripheral surface of the connecting column 9, the front end of the connecting column 9 is connected with the fixed head 6, the connecting column 9 slides in the center of the limiting plate 12 installed in the shell 7 through the perforation 13, the return spring 11 is positioned between the fixed head 6 and the limiting plate 12, the return spring 11 rebounds to enable the fixed head 6 to extend outwards, the fixed block 10 connected with the rear end of the connecting column 9 limits the connecting column 9, and then the fixed head 6 in front of the shell is prevented from being separated from the inside, the new filter screen 2 is aligned with the groove 4 to forcefully squeeze, the bottom of the filter screen 2 is contacted with the fixed head 6, and then the fixed head 6 is contracted, and the filter screen 2 is attached to the groove 2 is attached to the limiting plate 6, and the filter screen 2 is fixed at the same time.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a filter screen fixing device of fresh air device, its characterized in that includes a main part (1), a fixed head (6), a shell (7), a return spring (11), inside cavity and the right side of being equipped with the opening of main part (1), recess (4) are seted up in main part (1) right side opening part, movable mounting has filter screen (2) in recess (4), a plurality of square holes (5) have been seted up to inner wall all around in recess (4) on main part (1) right side, shell (7) movable mounting in square hole (5), shell (7) the place ahead is equipped with fixed head (6), fixed head (6) rear end fixedly connected with spliced pole (9), spliced pole (9) other end swing joint has fixed block (10), spliced pole (9) outer peripheral face swing joint limiting plate (12), return spring (11) are located fixed head (6) with in the middle of limiting plate (12), shell (7) are equipped with opening and one side face combination in the same and form in the side and are equipped with in the inside to be connected with fixed block (12), return spring (6) rear end fixedly connected with spliced pole (9), return spring (12) is located in the centre of limiting plate (13), the limiting plate (12) is movably connected to the outer peripheral surface of the connecting column (9) through the through hole (13).

2. The filter screen fixing device of a fresh air device according to claim 1, wherein a notch (3) is formed in the front inner wall and the rear inner wall of the right side of the main body (1), and the depth of the notch (3) is larger than that of the groove (4).

3. The filter screen fixing device of a fresh air device according to claim 1, wherein the length of the outer shell (7) is consistent with the depth of the square hole (5), and the distance from the inner wall of one side of the outer shell (7) to the bottom of the groove (4) is consistent with the thickness of the filter screen (2).

4. The filter screen fixing device of a fresh air device according to claim 1, wherein the length of the connection of the fixing head (6) with the connecting column (9) and the fixing block (10) is smaller than the depth of the opening inside the casing (7).

5. The filter screen fixing device of the fresh air device according to claim 1, wherein a return spring (11) is sleeved on the outer peripheral surface of the connecting column (9), the return spring (11) is positioned between the fixing head (6) and the limiting plate (12), and the length of the return spring (11) is slightly larger than the distance between the fixing head (6) and the limiting plate (12).

6. The filter screen fixing device of the fresh air device according to claim 1, wherein a limit groove (8) is formed in the casing (7) and is located at the rear, and the limit plate (12) is movably installed in the limit groove (8).

7. The filter screen fixing device of a fresh air device according to claim 1, wherein the fixing head (6) is in a trapezoid shape and the front end of the fixing head (6) is smooth, and the size of the fixing head (6) is matched with the opening of the inner wall of the shell (7).