Box-type air filter

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a box-type air filter which comprises a box body, a filter screen and a grating, an upper opening is formed in the top end of the box body, and a lower opening is formed in the bottom end of the box body; a plurality of filter screens are arranged in the box body in an organ leaf structure, and are in sliding connection with the inner wall of the box body; the grid is mounted at the lower opening of the box body and is used for supporting the plurality of filter screens; wherein the filter screen comprises a filtering part used for filtering and an annular part arranged around the filtering part, the filter screen is arranged to be of an organ page structure, the filtering area is increased, the service life is prolonged, the filter screen is slidably connected into the box body, and the grid is arranged for supporting, so that when the filter screen is disassembled, only the grid needs to be disassembled, and the filter screen can be conveniently disassembled. Therefore, the disassembly convenience is improved, and the maintenance and replacement cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and in particular relates to a box-type air filter. Background Art

[0002] A filter is a widely used device used to remove impurities or unwanted substances from a fluid (such as a liquid or gas); the design and use of filters are crucial in a variety of application scenarios; and a box air filter is a type of filter, which belongs to the application of filters in the field of gas treatment, and is mainly used to remove dust, particulate matter, odor or other impurities from the air to provide clean air.

[0003] Box-type air filters are usually installed on the ceiling of places such as clean workshops, clean factories, laboratories, hospital operating rooms, etc. to remove dust and microorganisms in the air and ensure the cleanliness of the air. In addition, box-type air filters are also commonly used in air-conditioning systems and ventilation systems to improve indoor air quality.

[0004] For example, Chinese patent application No. (CN201220199362.4) discloses a box-type air filter, which is composed of a plurality of slot plates connected and arranged on the front and rear sides of the box frame, positioning slots provided on the upper end cover and the lower end cover, and filter paper boards. The front and rear ends of the positioning slots correspond to the plurality of U-shaped slot plates arranged and distributed, and the filter paper boards are arranged in a wave shape in the box frame. The front and rear ends and the upper and lower ends of the filter paper boards are respectively inserted into the slot plates and the positioning slots, and glue is injected into the slots to seal and bond the filter paper boards. The application adopts the filter paper board installation, shaping, fixing and glue injection sealing, which is easy to install and operate, has good sealing performance and increases the service life. However, the filter plate of the application is inconvenient to disassemble. If it encounters local blockage or damage, the entire filter needs to be replaced, which is very inconvenient and has high maintenance costs. Utility Model Content

[0005] The purpose of the utility model is to provide a box-type air filter in view of the above-mentioned technical problems, which can facilitate the disassembly and replacement of a single filter screen, improve convenience, and reduce maintenance costs.

[0006] In view of this, the utility model provides a box-type air filter, comprising:

[0007] The box body has an upper opening at the top and a lower opening at the bottom;

[0008] The filter screens are provided in plurality and are installed in the box body in an accordion leaf structure and are slidably connected to the inner wall of the box body;

[0009] A grille is installed at the lower opening of the box body and is used to support multiple filter screens;

[0010] The filter net comprises a filter portion for filtering and an annular portion arranged around the filter portion.

[0011] In the above technical solution, further, it also includes:

[0012] The slideway is installed on the inner wall of the box body and is respectively located at two ends of the filter screen close to the inner wall of the box body, and includes a first support plate and a second support plate;

[0013] The first support plate and the second support plate are respectively located on two side surfaces of the filter screen in a sliding direction along the inner wall of the box.

[0014] In the above technical solution, further, it also includes:

[0015] The first baffle is installed at the upper opening of the box body and is used to limit the maximum installation height of the filter.

[0016] In the above technical solution, further, it also includes:

[0017] The first rubber strip is installed on the first baffle plate and is located between the first baffle plate and the filter screen.

[0018] In the above technical solution, further, the grille includes:

[0019] A sub-grid is installed at the lower opening of the box body, and a plurality of sub-grids are provided;

[0020] The second baffle is installed between two adjacent sub-grids and is arranged corresponding to the bottom end of the filter screen, and is used to support the bottom end of the filter screen.

[0021] In the above technical solution, further, the grille also includes:

[0022] The second rubber strip is installed on the second baffle plate and is located between the second baffle plate and the filter screen.

[0023] In the above technical solution, further, the grille also includes:

[0024] The locking structure is installed at one end of the second baffle, and the other end of the second baffle is hinged to the box body.

[0025] In the above technical solution, further:

[0026] A pin hole is provided on the box body at a side of the second baffle plate close to the lock structure, a through hole corresponding to the pin hole is provided on the second baffle plate, and a sliding groove is provided on a surface of one side of the second baffle plate close to the through hole;

[0027] The locking structure includes:

[0028] A pin shaft is slidably connected in the pin hole, and one end of the pin shaft extends out of the through hole and is provided with a first slot hole;

[0029] A third baffle is slidably connected in the slide groove and is used to limit the pin shaft in the pin hole, and a second slot hole is opened on the end surface away from the pin shaft;

[0030] A first stopper is mounted on an end of the pin away from the first slot;

[0031] The second stopper is installed on the inner wall of the through hole and is arranged corresponding to the first stopper.

[0032] The beneficial effects of the utility model are:

[0033] 1. The filter is arranged into an accordion leaf structure to increase the filtering area and extend the service life. The filter is slidably connected in the box and supported by a grille. When the filter is disassembled, only the grille needs to be removed to remove the single filter, thereby improving the convenience of disassembly and reducing the cost of maintenance and replacement. The filter is arranged into a filtering part and a surrounding part, that is, two filters in contact at the bottom are abutted by the surrounding part, which can prevent multiple filters from falling off after the grille is removed. The surrounding part improves the structural strength of the bottom of the filter and ensures the abutment stability.

[0034] 2. The top of the ring-shaped portion of the filter is abutted by the first baffle plate and the first rubber strip, and the bottom of the ring-shaped portion of the filter is supported by the second baffle plate and the second rubber strip, thereby improving the installation stability of the filter and avoiding shaking and abnormal noise during use.

[0035] 3. By hingedly connecting one end of the second baffle and locking and unlocking the other end through a locking structure, it is further facilitated to disassemble a single filter screen, thereby reducing the maintenance cost of a single filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the utility model;

[0037] Figure 2 It is a bottom view of the utility model;

[0038] Figure 3 This utility model Figure 2 Sectional view at AA in the middle;

[0039] Figure 4 This utility model Figure 3 The enlarged view of point B in the middle;

[0040] Figure 5 This utility model Figure 2 Sectional view at CC;

[0041] Figure 6 This utility model Figure 5 The enlarged view of point D in the middle;

[0042] Figure 7 This utility model Figure 5 Enlarged view of point E in the middle;

[0043] The markings in the figure are as follows: 1. box body; 2. upper opening; 3. lower opening; 4. filter screen; 40. filter part; 41. annular part; 5. grille; 50. sub-grill; 51. second baffle; 52. second rubber strip; 53. locking structure; 530. pin hole; 531. through hole; 532. slide groove; 533. pin shaft; 534. first slot hole; 535. third baffle; 536. second slot hole; 537. first block; 538. second block; 6. slideway; 60. first support plate; 61. second support plate; 7. first baffle; 8. first rubber strip. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0045] Embodiment 1:

[0046] This embodiment provides a box-type air filter, comprising:

[0047] The box body 1 has an upper opening 2 at the top and a lower opening 3 at the bottom;

[0048] The filter screen 4 is provided in plurality and is installed in the box body 1 in an accordion leaf structure and is slidably connected to the inner wall of the box body 1;

[0049] A grille 5 is installed at the lower opening 3 of the box body 1 and is used to support multiple filter screens 4;

[0050] The filter screen 4 includes a filter portion 40 for filtering and an annular portion 41 arranged around the filter portion 40;

[0051] At the same time, the filter part 40 and the surrounding part can be fixedly connected by bolts, and the filter part 40 can be made of different materials according to different usage scenarios. This is an existing mature technology and will not be described here.

[0052] It can be seen from this embodiment that by setting the filter screen 4 into an accordion leaf structure, the filtering area is increased and the service life is extended, and the filter screen 4 is slidably connected in the box body 1 and supported by setting the grille 5, so that when the filter screen 4 is disassembled, only the grille 5 needs to be removed, and the single filter screen 4 can be disassembled and replaced, thereby improving the convenience of disassembly and reducing the cost of maintenance and replacement;

[0053] The filter screen 4 is arranged in an accordion leaf structure. After the grille 5 is removed, the two filter screens 4 that are in contact with each other at the bottom will abut against each other due to the annular portion 41. Therefore, even if the grille 5 is removed, the filter screen 4 will not fall directly.

[0054] At the same time, the filter screen 4 is configured to be a filter portion 40 and a surrounding portion, so that the surrounding portion improves the structural strength of the bottom of the filter screen 4 and ensures the abutment stability.

[0055] Embodiment 2:

[0056] This embodiment provides a box-type air filter, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including:

[0057] The slideway 6 is installed on the inner wall of the box body 1 and is respectively located at two ends of the filter screen 4 close to the inner wall of the box body 1, and includes a first support plate 60 and a second support plate 61;

[0058] The first support plate 60 and the second support plate 61 are respectively located on two side surfaces of the filter screen 4 along the sliding direction of the inner wall of the box body 1;

[0059] Meanwhile, the first support plate 60 and the second support plate 61 may be fastened by bolts.

[0060] It can be seen from this embodiment that the setting of the slideway 6 facilitates limiting the sliding direction of the filter screen 4, so that after the grille 5 is removed, the bottom ends of two adjacent filter screens 4 close to each other can abut against each other, thereby achieving a temporary anti-falling effect.

[0061] Embodiment 3:

[0062] This embodiment provides a box-type air filter, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including:

[0063] The first baffle 7 is installed at the upper opening 2 of the box body 1 and is used to limit the maximum installation height of the filter screen 4;

[0064] The first baffle 7 can be fixed to the box body 1 by bolt connection at both ends.

[0065] It can be seen from this embodiment that the setting of the first baffle 7 can facilitate limiting the maximum installation height of the filter 4, that is, ensuring that the installation heights of the top ends of multiple filter screens 4 are the same, thereby facilitating the formation of an accordion leaf structure and avoiding the generation of gaps between two adjacent filter screens 4, which would affect the filtering effect.

[0066] Embodiment 4:

[0067] This embodiment provides a box-type air filter, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including:

[0068] The first rubber strip 8 is installed on the first baffle plate 7 and is located between the first baffle plate 7 and the filter screen 4;

[0069] The first rubber strip 8 may be made of rubber material and connected to the first baffle plate 7 by bonding.

[0070] It can be seen from the present embodiment that by providing the first rubber strip 8, the two filter screens 4 abutting against each other at the top can be sealed to prevent air from passing through the gap between the two filter screens 4, thereby ensuring the filtering effect.

[0071] Embodiment 5:

[0072] This embodiment provides a box-type air filter, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the grille 5 includes:

[0073] A sub-grid 50 is installed at the lower opening 3 of the box body 1, and a plurality of sub-grids are provided;

[0074] The second baffle 51 is installed between two adjacent sub-grids 50 and is disposed corresponding to the bottom end of the filter screen 4 and is used to support the bottom end of the filter screen 4 .

[0075] It can be seen from the present embodiment that the grille 5 is configured as a structure of a sub-grout 50 and a second baffle 51, and the filter 4 is supported by the second baffle 51, that is, a plurality of filter screens 4 are grouped, so that when one group of filter screens 4 is repaired or replaced, the filter screens 4 of other groups are not affected, thereby ensuring stability and convenience during repair.

[0076] Embodiment 6:

[0077] This embodiment provides a box-type air filter, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the grille 5 also includes:

[0078] The second rubber strip 52 is installed on the second baffle plate 51 and is located between the second baffle plate 51 and the filter screen 4;

[0079] The second rubber strip 52 may be made of rubber material and connected to the second baffle 51 by bonding.

[0080] It can be seen from this embodiment that, by providing the second rubber strip 52 , the space between the two filter screens 4 abutting against each other at the bottom can be sealed to prevent air from passing through the gap between the two filter screens 4 , thereby ensuring the filtering effect.

[0081] Embodiment 7:

[0082] This embodiment provides a box-type air filter, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the grille 5 also includes:

[0083] The locking structure 53 is installed at one end of the second baffle plate 51 , and the other end of the second baffle plate 51 is hinged to the box body 1 .

[0084] It can be seen from the present embodiment that the second baffle 51 is easy to disassemble by adopting the locking structure 53, and the other end is hingedly connected. Since the filter is usually installed on the top wall of the place, that is, after the locking structure 53 is unlocked, the second baffle 51 can also be connected to the filter without holding it, thereby further improving the convenience of replacing a single filter 4.

[0085] Embodiment 8:

[0086] This embodiment provides a box-type air filter, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0087] The box body 1 is provided with a pin hole 530 on one side of the second baffle plate 51 close to the locking structure 53, the second baffle plate 51 is provided with a through hole 531 corresponding to the pin hole 530, and a sliding groove 532 is provided on one side of the second baffle plate 51 close to the through hole 531;

[0088] The locking structure 53 includes:

[0089] The pin shaft 533 is slidably connected in the pin hole 530, and one end thereof extends out of the through hole 531 and is provided with a first slot hole 534;

[0090] The third baffle 535 is slidably connected in the slide groove 532 and is used to limit the pin shaft 533 in the pin hole 530, and a second slot hole 536 is formed on the end surface away from the pin shaft 533;

[0091] A first stopper 537 is mounted on an end of the pin 533 away from the first slot 534;

[0092] The second stopper 538 is installed on the inner wall of the through hole 531 and is arranged corresponding to the first stopper 537;

[0093] At the same time, grooves are also provided on the two side walls of the slide groove 532, and the third baffle 535 is provided with protrusions adapted to the grooves at the grooves, thereby improving the sliding stability of the third baffle 535 in the slide groove 532, and in order to facilitate the installation of the third baffle 535, an introduction slope connected to the slide groove 532 is also provided on the second stopper 538, which is used to facilitate the third baffle 535 to be installed in the slide groove 532, and the third baffle 535 can be made of metal material, so that it has elastic recovery effect and structural strength;

[0094] The length of the slide groove 532 should be greater than the sum of the length of the third baffle 535 and the width of the pin shaft 533 to ensure that the pin shaft 533 can be unlocked and restricted after the third baffle 535 slides.

[0095] It can be seen from the present embodiment that, through the above structure, after the pin shaft 533 is pushed in, the pin shaft 533 is limited by toggling the third baffle plate 535, and the end of the second baffle plate 51 away from its hinge connection can be locked, thereby improving the stability of the second baffle plate 51, and when it is necessary to open, it is only necessary to toggle the third baffle plate 535, so that the pin shaft 533 falls under the action of gravity to unlock, thereby improving convenience;

[0096] Furthermore, the first slot 534 can be manually moved when the pin 533 cannot fall under the action of gravity to ensure the contact and locking of the second baffle 51, while the second slot 536 improves the convenience of moving the third baffle 535.

[0097] At the same time, the provision of the first stopper 537 and the second stopper 538 facilitates the connection with the second baffle plate 51 after the pin shaft 533 slides out of the pin hole 530, and is not prone to falling off, further improving the convenience of repairing the filter screen 4.

[0098] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A box-type air filter, It is characterized in that include: The box body (1) has an upper opening (2) at the top and a lower opening (3) at the bottom; A plurality of filter screens (4) are provided and are installed in the box body (1) in an accordion leaf structure and are slidably connected to the inner wall of the box body (1); A grille (5) is installed at the lower opening (3) of the box body (1) and is used to support a plurality of filter screens (4); The filter net (4) comprises a filter portion (40) for filtering and an annular portion (41) arranged around the filter portion (40).

2. The box-type air filter according to claim 1, It is characterized in that Also includes: The slideway (6) is installed on the inner wall of the box body (1) and is respectively located at two ends of the filter screen (4) close to the inner wall of the box body (1), and comprises a first support plate (60) and a second support plate (61); Wherein, the first support plate (60) and the second support plate (61) are respectively located on two side surfaces of the filter screen (4) in the sliding direction along the inner wall of the box body (1).

3. The box-type air filter according to claim 1, It is characterized in that Also includes: The first baffle (7) is installed at the upper opening (2) of the box body (1) and is used to limit the maximum installation height of the filter screen (4).

4. The box-type air filter according to claim 3, It is characterized in that Also includes: The first rubber strip (8) is installed on the first baffle (7) and is located between the first baffle (7) and the filter screen (4).

5. The box-type air filter according to claim 1, It is characterized in that The grille (5) comprises: A sub-grid (50) is installed at the lower opening (3) of the box body (1), and a plurality of sub-grids are provided; The second baffle (51) is installed between two adjacent sub-grids (50) and is arranged corresponding to the bottom end of the filter screen (4), and is used to support the bottom end of the filter screen (4).

6. The box-type air filter according to claim 5, It is characterized in that The grille (5) further comprises: The second rubber strip (52) is mounted on the second baffle plate (51) and is located between the second baffle plate (51) and the filter screen (4).

7. The box-type air filter according to claim 5, It is characterized in that The grille (5) further comprises: The locking structure (53) is installed on one end of the second baffle plate (51), and the other end of the second baffle plate (51) is hingedly connected to the box body (1).

8. The box-type air filter according to claim 7, Features: The box body (1) is provided with a pin hole (530) on one side of the second baffle plate (51) close to the locking structure (53), the second baffle plate (51) is provided with a through hole (531) corresponding to the pin hole (530), and a sliding groove (532) is provided on the surface of one side of the second baffle plate (51) close to the through hole (531); Wherein, the locking structure (53) comprises: A pin shaft (533) is slidably connected in the pin hole (530), and one end of the pin shaft extends out of the through hole (531) and is provided with a first slot hole (534); A third baffle (535) is slidably connected in the slide groove (532) and is used to restrict the pin shaft (533) in the pin hole (530), and a second slot hole (536) is formed on an end surface away from the pin shaft (533); A first stopper (537) is mounted on an end of the pin (533) away from the first slot (534); The second stopper (538) is installed on the inner wall of the through hole (531) and is arranged corresponding to the first stopper (537).

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