Ventilation filtering device of soundproof shed

Abstract

The utility model relates to a ventilating and filtering device of a soundproof shed, which comprises a fan shell, a fan impeller is arranged in the fan shell, an air duct is arranged on the fan shell corresponding to the fan impeller in a penetrating manner, fan covers are respectively arranged at two ends of the air duct, and each fan cover is provided with an air hole. The fan cover is characterized in that any fan cover is detachably connected with a connecting base in a clamped mode, a clamping cavity for clamping the outer sleeve is formed between the connecting base and the fan shell, a filtering assembly is detachably arranged at the end, opposite to the fan cover, of the connecting base, and disassembly and assembly are convenient.

Description

Technical Field

[0001] This utility model relates to the field of soundproof sheds, specifically to a ventilation and filtration device for soundproof sheds. Background Technology

[0002] Existing portable soundproof sheds, such as the detachable soundproof shed in the applicant's earlier application (application number CN202323527325.9), have a small internal space after assembly, and the internal air is easily polluted. To improve the comfort inside the soundproof shed, it is often equipped with a ventilation and filtration system to refresh the internal air in real time and improve comfort. However, the existing ventilation and filtration devices are not well-suited to the soundproof shed. Whether in terms of size or installation and connection between the ventilation and filtration devices and the soundproof shed, the ventilation devices are generally fixed to the soundproof shed with screws, making the disassembly and assembly operations cumbersome and complicated. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology.

[0004] A ventilation and filtration device for a soundproof shed is provided, which is easy to install and remove.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ventilation and filtration device for a soundproof shed, comprising a fan housing, a fan impeller inside the fan housing, an air duct passing through the fan housing corresponding to the fan impeller, fan covers at both ends of the air duct, and air holes in each fan cover, characterized in that: any fan cover is detachably snapped with a connecting seat, the connecting seat and the fan housing forming a clamping cavity for clamping the outer sleeve, and a filter component is detachably provided at one end of the connecting seat relative to the fan cover.

[0006] A further feature of this invention is that the connecting seat includes an annularly arranged seat body with an inner hole at its center. Limiting components are provided at both ends of the inner hole, each limiting component including at least two symmetrically arranged limiting plates. The limiting plates are circumferentially positioned at the ends of the inner hole, and a baffle extends axially from one end of each limiting plate along the inner hole. The fan cover has a first groove along its edge, and at least two symmetrically arranged first limiting blocks are provided on the sidewall of the first groove. A first gap is provided between the first limiting blocks and the bottom of the first groove, and this first gap is adapted to the thickness of the limiting plates. When the limiting plates are placed within the first groove and rotated until the first limiting blocks abut against the baffle, the limiting plates and the first limiting blocks completely or partially overlap.

[0007] The present invention, which has the above-mentioned features, is as follows: During installation, the limiting plate is placed in the first groove and rotated until the first limiting block abuts against the baffle. The limiting plate and the first limiting block completely or partially overlap, and the first limiting block and the second limiting block generate an interaction force, thereby realizing the detachable snap-fit ​​between the connecting seat and the fan cover. The fan housing and the connecting seat are clamped together with the edge of the through hole on the outer sleeve of the ventilation filter device to achieve fixation. During disassembly, the fan can be disassembled by rotating in the opposite direction, making disassembly and assembly convenient.

[0008] A further feature of this invention is that a positioning plate parallel to the limiting plate is provided at one end of the baffle relative to the limiting plate.

[0009] A further feature of this invention is that: the limiting plate has a positioning block on one end face facing the inner hole, and the first limiting block has a first positioning groove that matches the positioning block; when the first limiting block abuts against the baffle, the positioning block is placed in the first positioning groove.

[0010] The present invention having the above features: the positioning block cooperates with the first positioning groove to prevent the limiting plate from coming out of the first gap when no force is applied.

[0011] A further feature of this invention is that the filter assembly includes a filter base, the filter base has a ventilation hole coaxially arranged with the air duct, one end of the filter base has a filter chamber communicating with the ventilation hole, the filter chamber has a filter element, the filter base has a filter cover, the filter cover has filter holes, the filter base has a second groove circumferentially arranged around the ventilation hole, the side wall of the second groove has at least two symmetrically arranged second limiting blocks, the second limiting blocks and the bottom of the second groove have a second gap, the second gap is adapted to the thickness of the limiting plate, the limiting plate can be placed in the second groove and rotated until the second limiting block abuts against the baffle, the limiting plate and the second limiting block completely overlap or partially overlap.

[0012] A further feature of this invention is that the second limiting block is provided with a second positioning groove that is adapted to the positioning block, and when the second limiting block abuts against the baffle, the positioning block is placed in the second positioning groove.

[0013] The present utility model with the above features: the connection method between the filter base and the connecting seat is the same as that between the fan cover and the connecting seat, and the two are based on the same principle. At the same time, the filter element can also play a role in sound insulation.

[0014] The beneficial effects of this utility model are: it is convenient to assemble and disassemble.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0017] Figure 2 This is an exploded view of an embodiment of the present invention.

[0018] Figure 3 This is a three-dimensional schematic diagram of the fan cover according to an embodiment of the present utility model.

[0019] Figure 4 This is a three-dimensional schematic diagram of the connecting seat according to an embodiment of the present utility model.

[0020] Figure 5 This is a three-dimensional schematic diagram of the filter base according to an embodiment of the present utility model. Detailed Implementation

[0021] like Figure 1 —— Figure 5The ventilation and filtration device for a soundproof shed shown includes a fan housing 1, a fan impeller 2 inside the fan housing 1, an air duct 3 passing through the fan housing 1 corresponding to the fan impeller 2, fan covers 4 at both ends of the air duct 3, each fan cover 4 having an air hole 5, and a connecting seat 6 detachably snapped onto any fan cover 4. The connecting seat 6 and the fan housing 1 form a clamping cavity 7 for clamping the outer sleeve. A filter assembly is detachably mounted on one end of the connecting seat 6 opposite to the fan cover 4. The connecting seat 6 includes a ring. The fan cover 4 has a base with an inner hole 8 at its center. Limiting components are located at both ends of the inner hole 8, each including four limiting plates 9. Each limiting plate 9 is circumferentially positioned at the end of the inner hole 8. A baffle 10 extends axially from one end of each limiting plate 9 along the inner hole. A first groove 11 is provided along the edge of the fan cover 4. Four first limiting blocks 12 are provided on the sidewall of the first groove 11. A first gap 13 is provided between the first limiting blocks 12 and the bottom of the first groove 11. The first gap 13 is equal to the thickness of the limiting plate 9. When the limiting plate 9 is placed in the first groove 11 and rotated until the first limiting block 12 abuts against the baffle 10, the limiting plate 9 and the first limiting block 12 completely or partially overlap. The baffle 10 has a positioning plate 14 parallel to the limiting plate 9 at one end opposite to the limiting plate 9. The positioning plate 14 cooperates with the first groove 11 to align the limiting plate with the first gap 13. The limiting plate 9 has a positioning block 15 on its end face facing the inner hole 8. The first limiting block 12 has a first positioning block adapted to the positioning block 15. When the first limiting block 12 abuts against the baffle 10, the positioning block 15 is placed in the first positioning groove 16. The filter assembly includes a filter base 17, which has a ventilation hole 18 coaxially arranged with the air duct 3. One end of the filter base 17 has a filter chamber 19 communicating with the ventilation hole 18. The filter chamber 19 has a filter element 20. The filter base 17 has a filter cover 21, which is detachably connected to the filter base 17 by a detachable snap-fit. The filter cover 21 has filter holes 22. The filter base 17 has a second groove 23 circumferentially surrounding the ventilation hole 18. Four second limiting blocks 24 are provided on the sidewall of the second groove 23. A second gap 25 is provided between the second limiting blocks 24 and the bottom of the second groove 23. The second gap 25 is adapted to the thickness of the limiting plate 9. The limiting plate 9 can be placed in the second groove 23 and rotated until the second limiting block 24 abuts against the baffle 10. The limiting plate 9 and the second limiting block 24 completely or partially overlap. The second limiting block 24 has a second positioning groove 26 adapted to the positioning block 15. When the second limiting block 24 abuts against the baffle 10, the positioning block 15 is placed in the second positioning groove 26. The first positioning groove 16 and the second positioning groove 26 have the same specifications. The diameter of the connection between the positioning block 15 and the limiting plate 9 is larger than the opening diameter of the first positioning groove 16 and the second positioning groove 26. The head of the positioning block 15 can be inserted into the first positioning groove 16 and the second positioning groove 26.When the limiting plate 9 is positioned at the first interval 13 or the second interval 25, it eliminates the gap between the limiting plate 9 and the first limiting block 12 or the second limiting block 24, improving the tightness of the installation connection.

Claims

1. A ventilation and filtration device for a soundproof shed, comprising a fan housing, a fan impeller disposed within the fan housing, an air duct passing through the fan housing corresponding to the fan impeller, fan covers disposed at both ends of the air duct, and each fan cover having an air hole, characterized in that: The fan cover is detachably snapped with a connecting seat, and the connecting seat and the fan housing form a clamping cavity for holding the outer sleeve. A filter component is detachably provided at one end of the connecting seat relative to the fan cover.

2. A soundproof booth ventilation filter device according to claim 1, characterized in that: The connecting seat includes a ring-shaped seat body with an inner hole at its center. Limiting components are provided at both ends of the inner hole. Each limiting component includes at least two symmetrically arranged limiting plates. The limiting plates are arranged circumferentially at the ends of the inner hole. A baffle extends axially from one end of the limiting plate along the inner hole. The fan cover has a first groove along its edge. At least two symmetrically arranged first limiting blocks are provided on the sidewall of the first groove. A first gap is provided between the first limiting blocks and the bottom of the first groove. The first gap is adapted to the thickness of the limiting plate. The limiting plate can be placed in the first groove and rotated until the first limiting block abuts against the baffle. The limiting plate and the first limiting block completely or partially overlap.

3. The ventilation and filtration device for a soundproof shed according to claim 2, characterized in that: The baffle has a positioning plate parallel to the limiting plate at one end relative to the limiting plate.

4. A sound booth ventilation filter assembly according to claim 3, wherein: The limiting plate has a positioning block on the end face facing the inner hole. The first limiting block has a first positioning groove that matches the positioning block. When the first limiting block abuts against the baffle, the positioning block is placed in the first positioning groove.

5. The soundproof booth according to claim 1, wherein: The filter assembly includes a filter base with a ventilation hole coaxially arranged with the air duct. One end of the filter base has a filter chamber communicating with the ventilation hole. The filter chamber has a filter element. The filter base has a filter cover with filter holes. The filter base has a second groove circumferentially surrounding the ventilation hole. The side wall of the second groove has at least two symmetrically arranged second limiting blocks. The second limiting blocks and the bottom of the second groove have a second gap. The second gap is adapted to the thickness of the limiting plate. The limiting plate can be placed in the second groove and rotated until the second limiting block abuts against the baffle. The limiting plate and the second limiting block completely or partially overlap.

6. A sound booth ventilation filter assembly according to claim 5, wherein: The second limiting block is provided with a second positioning groove that is adapted to the positioning block. When the second limiting block abuts against the baffle, the positioning block is placed in the second positioning groove.

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