Device facilitating filter element replacement of indoor fresh air ventilator

Abstract

The utility model relates to the technical field of fresh air systems, and discloses a device facilitating filter element replacement of an indoor fresh air ventilator, which comprises a fresh air ventilator shell, a plurality of clamping blocks are arranged on the inner wall of the fresh air ventilator shell, a bottom plate is arranged at the bottom end of the fresh air ventilator shell, and first telescopic rods are arranged at four corners of the top end of the bottom plate. Limiting blocks II are fixedly connected to the top ends of the telescopic rods I, limiting grooves are formed in the left end and the right end of the bottom plate, a push block is connected to the inner wall of the fresh air ventilator shell through a limiting assembly, a sliding block is connected to the top end of the bottom plate through a fixing assembly, and an upper mounting plate is fixedly connected to the top of the inner wall of the fresh air ventilator shell. According to the fresh air ventilator, the two push blocks at the bottom of the fresh air ventilator shell are pulled, so that the bottom plate is hung in the air to form a platform, replacement personnel can replace the filter element conveniently, after the filter element is replaced, only the bottom plate needs to be pushed upwards, the first position block is clamped into the limiting groove to fix the bottom plate, and the filter element can be taken out of the fresh air ventilator and put back into the fresh air ventilator very conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air systems, and in particular to a device for facilitating replacement of filter elements of indoor fresh air fans. Background Art

[0002] Indoor fresh air fan is a modern household appliance. Its main function is to provide fresh air to the room and exhaust the dirty air in the room, thereby improving the indoor air quality. The fresh air fan mechanically introduces outdoor air into the room and exhausts the indoor air to realize the circulation of indoor and outdoor air.

[0003] After searching, the announcement number CN216346848U is an indoor fresh air system device that is easy to replace the filter element, including a fresh air system body, a mounting slot, a suction fan, an exhaust fan and a dust filter. One side of the fresh air system body is provided with an inspection port, and a mounting plate is fixedly connected to the top of the fresh air system body. The mounting slot is arranged inside the fresh air system body, and a replacement mechanism is installed in the middle of the mounting slot. The suction fan is arranged on both sides of the replacement mechanism, and a fresh air inlet is arranged on one side of the suction fan. At the same time, the other side of the suction fan is fixedly connected to the fresh air outlet through a fresh air duct. The exhaust fan is arranged below the suction fan, and an exhaust outlet is arranged on one side of the exhaust fan. The dust filter is respectively arranged below the fresh air outlet and the exhaust inlet. The indoor fresh air system device that is easy to replace the filter element is provided with a replacement mechanism and a dust filter. The replacement mechanism is convenient for regular replacement of the filter element, and the dust filter can effectively prevent dust;

[0004] Based on the above patent, during the air replacement process of the ceiling-mounted fresh air fan mentioned in its background technology, the filter needs to be replaced or cleaned regularly. In this regard, in order to solve this technical problem, this application proposes a device that is convenient for replacing the filter element of the indoor fresh air fan. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a device for replacing the filter element of an indoor fresh air fan, which is convenient for taking out and putting back the filter element from the inside of the fresh air fan, and can conveniently replace and clean the filter element regularly.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for facilitating replacement of a filter element of an indoor fresh air fan comprises a fresh air fan housing, a plurality of clamping blocks are arranged on the inner wall of the fresh air fan housing, a bottom plate is arranged on the bottom end of the fresh air fan housing, a telescopic rod one is arranged on the four corners of the top end of the bottom plate, the top end of the telescopic rod one is fixedly connected to a limiting block two, limiting grooves are arranged on the left and right ends of the bottom plate, the inner wall of the fresh air fan housing is connected to a push block through a limiting component, the top end of the bottom plate is connected to a sliding block through a fixing component, and the top of the inner wall of the fresh air fan housing is fixedly connected to an upper mounting plate.

[0008] Furthermore, the limit assembly includes two telescopic rods fixedly connected to the inner wall of the fresh air fan casing, the opposite ends of the two telescopic rods are fixedly connected to a limit block, the top of the push block is fixedly connected to the bottom end of the limit block, and the outward end of the limit block is fixedly connected to a spring.

[0009] Furthermore, the fixing assembly includes a lower mounting plate fixedly connected to the top of the base plate, the front end of the lower mounting plate is rotatably connected to a limiting rod, the front end of the lower mounting plate is provided with a slide groove, and the front side of the outer wall of the slider is slidably connected to the inner wall of the slide groove.

[0010] Furthermore, an outer wall of the telescopic rod is slidably connected to the inner wall of the block, and grooves are provided at four corners of the top of the bottom plate to fit with the block.

[0011] Furthermore, the outer walls of the two limit blocks are respectively arranged on the inner walls of the two limit grooves, and the limit blocks are slidably connected to the inner wall of the fresh air fan housing.

[0012] Furthermore, the outward ends of the springs are fixedly connected to the inner wall of the fresh air fan housing.

[0013] Furthermore, the outer walls of the sliding blocks are slidably connected to the inner walls of the lower mounting plate.

[0014] Furthermore, filter screen 1, activated carbon screen and filter screen 2 are respectively arranged between two adjacent sliding blocks, and the outer walls of filter screen 1, activated carbon screen and filter screen 2 are all arranged on the inner wall of the upper mounting plate.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the bottom plate is cooperated with the limit block 1, the limit block 2, the clamping block, the telescopic rod 1, the limit groove, the telescopic rod 2, the push block and the spring to realize the device to facilitate taking out and putting back the filter element from the inside of the fresh air fan, and the filter element can be conveniently replaced and cleaned regularly.

[0017] 2. In the utility model, the slider cooperates with the upper mounting plate, the lower mounting plate, the limit rod and the slide groove, so that the device can ensure that the filter screen will not shake inside the fresh air fan, and can be installed normally after replacement without deviation, resulting in a gap between the filter screen and the fresh air fan casing, affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A cross-sectional view of a fresh air fan housing in an open state of a device for facilitating replacement of a filter element of an indoor fresh air fan proposed by the utility model;

[0019] Figure 2 A cross-sectional view of a housing of a fresh air fan in a device for facilitating replacement of a filter element of an indoor fresh air fan proposed by the utility model when the device is closed;

[0020] Figure 3 This is an exploded view of the replacement structure of a device for facilitating the replacement of filter elements of indoor fresh air fans proposed by the utility model;

[0021] Figure 4 for Figure 2 A is an enlarged view of the middle image.

[0022] Legend:

[0023] 1. Fresh air fan housing; 2. Limit block 1; 3. Upper mounting plate; 4. Limit block 2; 5. Clamp block; 6. Telescopic rod 1; 7. Bottom plate; 8. Limit groove; 9. Lower mounting plate; 10. Limit rod; 11. Slider; 12. Telescopic rod 2; 13. Filter 1; 14. Activated carbon net; 15. Filter 2; 16. Slide; 17. Push block; 18. Spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-4The utility model provides an embodiment: a device for replacing the filter element of an indoor fresh air fan, comprising a fresh air fan housing 1, a plurality of blocks 5 are arranged on the inner wall of the fresh air fan housing 1, a bottom plate 7 is arranged at the bottom end of the fresh air fan housing 1, a telescopic rod 6 is arranged at the four corners of the top of the bottom plate 7, the outer wall of the telescopic rod 6 is slidably connected to the inner wall of the block 5, the four corners of the top of the bottom plate 7 are arranged with grooves that fit with the block 5, the top of the telescopic rod 6 is fixedly connected to the limited block 2 4, and the left and right sides of the bottom plate 7 are The ends are provided with limit grooves 8, the inner wall of the fresh air fan housing 1 is fixedly connected with a telescopic rod 2 12, the opposite end of the telescopic rod 2 12 is fixedly connected with a limit block 2, the outer walls of the two limit blocks 2 are respectively arranged on the inner walls of the two limit grooves 8, the limit blocks 2 are slidably connected to the inner wall of the fresh air fan housing 1, the bottom of the limit blocks 2 are fixedly connected with an end push block 17, the outward end of the limit blocks 2 is fixedly connected with a spring 18, and the outward end of the spring 18 is fixedly connected to the inner wall of the fresh air fan housing 1;

[0026] Specifically, when replacing the filter element inside the fresh air fan, the two pushing blocks 17 at the bottom of the fresh air fan housing 1 are pulled to disengage the limit block 2 from the limit groove 8, and the bottom plate 7 slides out of the fresh air fan housing 1 along the card block 5 with the cooperation of the telescopic rod 16, and the filter element is taken out of the fresh air fan housing 1, and the limit block 2 4 on the telescopic rod 16 is clamped on the card block 5, so that the bottom plate 7 is suspended in the air to form a platform for replacement personnel to replace the filter element. After the filter element is replaced, it is only necessary to push the bottom plate 7 upwards so that the bottom plate 7 pushes the limit block 2 to compress the spring 18. When the groove at the top of the bottom plate 7 is completely in contact with the card block 5, the limit grooves 8 on both sides of the bottom plate 7 will be aligned with the limit block 2. At this time, under the elastic force of the spring 18, the limit block 2 is clamped into the limit groove 8, and the bottom plate 7 is fixed. It is very convenient to take the filter element out of the fresh air fan and put it back.

[0027] The top of the bottom plate 7 is fixedly connected with a lower mounting plate 9, the front end of the lower mounting plate 9 is rotatably connected with a limit rod 10, the front end of the lower mounting plate 9 is provided with a slide groove 16, the inner wall of the slide groove 16 is slidably connected with a plurality of sliders 11, the outer walls of the sliders 11 are all slidably connected to the inner wall of the lower mounting plate 9, and a filter screen 13, an activated carbon screen 14 and a filter screen 2 15 are respectively arranged between two adjacent sliders 11, the top of the inner wall of the fresh air fan housing 1 is fixedly connected with an upper mounting plate 3, and the outer walls of the filter screen 13, the activated carbon screen 14 and the filter screen 2 15 are all arranged on the inner wall of the upper mounting plate 3;

[0028] Specifically, by rotating the limit rod 10 so that the slider 11 can slide inside the slide groove 16, the contact slider 11 limits the filter 13, the activated carbon net 14 and the filter 2 15, the filter 13, the activated carbon net 14 and the filter 2 15 can be taken out from the lower mounting plate 9 for cleaning, and the various types of cleaned filters are inserted back into the gaps between adjacent sliders 11 in turn, and then the slider 11 is pushed to clamp them, and then the limit rod 10 is reset so that the slot on the limit rod 10 clamps the slider 11 to prevent the filter from shaking inside the lower mounting plate 9 and ensure that it can be accurately inserted into the upper mounting plate 3, and then when the bottom plate 7 is pushed back into the fresh air fan casing 1, the various types of filters on the lower mounting plate 9 will also be inserted into the upper mounting plate 3 to complete the fixation.

[0029] Working principle: when replacing the filter element inside the fresh air fan, pull the two push blocks 17 at the bottom of the fresh air fan housing 1 to disengage the limit block 2 from the limit groove 8, and the bottom plate 7 will slide out of the fresh air fan housing 1 along the card block 5 with the cooperation of the telescopic rod 16, and bring the filter element out of the fresh air fan housing 1, and the limit block 2 4 on the telescopic rod 16 is stuck on the card block 5, so that the bottom plate 7 is suspended in the air to form a platform for the replacement personnel to replace the filter element. After the filter element is replaced, it is only necessary to push the bottom plate 7 upwards so that the bottom plate 7 pushes the limit block 2 to compress the spring 18. When the groove at the top of the bottom plate 7 is completely in contact with the card block 5, the limit grooves 8 on both sides of the bottom plate 7 will be aligned with the limit block 2. At this time, under the elastic force of the spring 18, the limit block 2 is stuck in the limit groove 8, and the bottom plate 7 is fixed. The filter element is fixed, and it is very convenient to take out and put back the filter element from the fresh air fan. By rotating the limit rod 10, the slider 11 can slide inside the slide groove 16, and the contact slider 11 limits the filter screen 13, the activated carbon screen 14 and the filter screen 2 15, the filter screen 13, the activated carbon screen 14 and the filter screen 2 15 can be taken out from the lower mounting plate 9 for cleaning, and the various types of cleaned filters are inserted back into the gaps between adjacent sliders 11 in turn, and then the slider 11 is pushed to clamp them, and then the limit rod 10 is reset so that the slot on the limit rod 10 clamps the slider 11 to prevent the filter screen from shaking inside the lower mounting plate 9 and ensure that it can be accurately inserted into the upper mounting plate 3, and then when the bottom plate 7 is pushed back into the fresh air fan casing 1, the various types of filters on the lower mounting plate 9 will also be inserted into the upper mounting plate 3 to complete the fixation.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for facilitating replacement of a filter element of an indoor fresh air blower, comprising a fresh air blower housing (1), characterized in that: The inner wall of the fresh air fan housing (1) is provided with a plurality of clamping blocks (5); the bottom end of the fresh air fan housing (1) is provided with a bottom plate (7); the four corners of the top end of the bottom plate (7) are provided with telescopic rods (6); the top ends of the telescopic rods (6) are fixedly connected to limit blocks (4); limit grooves (8) are provided at both left and right ends of the bottom plate (7); the inner wall of the fresh air fan housing (1) is connected to a push block (17) via a limit assembly; the top end of the bottom plate (7) is connected to a sliding block (11) via a fixing assembly; and the top of the inner wall of the fresh air fan housing (1) is fixedly connected to an upper mounting plate (3).

2. A device for facilitating filter element replacement of an indoor fresh air blower according to claim 1, characterized in that: The limit assembly comprises two telescopic rods (12) fixedly connected to the inner wall of the fresh air blower housing (1), the two telescopic rods (12) having opposite ends fixedly connected to a limit block (2), the top end of the push block (17) fixedly connected to the bottom end of the limit block (2), and the outward end of the limit block (2) fixedly connected to a spring (18).

3. The device for facilitating filter element replacement of an indoor fresh air blower according to claim 1, characterized in that: The fixing assembly comprises a lower mounting plate (9) fixedly connected to the top of the bottom plate (7); the front end of the lower mounting plate (9) is rotatably connected to a limiting rod (10); a slide groove (16) is provided at the front end of the lower mounting plate (9); and the front side of the outer wall of the sliding block (11) is slidably connected to the inner wall of the slide groove (16).

4. The device for facilitating filter replacement of an indoor fresh air blower according to claim 1, characterized in that: The outer wall of the telescopic rod (6) is slidably connected to the inner wall of the clamping block (5), and the four corners of the top of the bottom plate (7) are provided with grooves that fit with the clamping block (5).

5. The device for facilitating filter replacement of indoor fresh air blower according to claim 2, characterized in that: The outer walls of the two limit blocks (2) are respectively arranged on the inner walls of the two limit grooves (8), and the limit blocks (2) are both slidably connected to the inner wall of the fresh air fan housing (1).

6. The device for facilitating filter replacement of indoor fresh air blower according to claim 2, characterized in that: The outward end of the spring (18) is fixedly connected to the inner wall of the fresh air fan housing (1).

7. The device for facilitating filter replacement of indoor fresh air blower according to claim 3, characterized in that: The outer walls of the sliding blocks (11) are slidably connected to the inner walls of the lower mounting plate (9).

8. The device for facilitating filter replacement of indoor fresh air blower according to claim 3, characterized in that: A filter screen 1 (13), an activated carbon screen (14) and a filter screen 2 (15) are respectively arranged between two adjacent sliders (11), and the outer walls of the filter screen 1 (13), the activated carbon screen (14) and the filter screen 2 (15) are all arranged on the inner wall of the upper mounting plate (3).

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