CN219413048U

CN219413048U - Sealing labyrinth connection structure for reducing noise of exhaust case

Info

Publication number: CN219413048U
Application number: CN202320523854.2U
Authority: CN
Inventors: 孟坤; 李兆强; 刘星; 常明
Original assignee: Jilin Pharmaceutical Food Engineering Co ltd
Current assignee: Jilin Pharmaceutical Food Engineering Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-07-25
Anticipated expiration: 2033-03-17

Abstract

The utility model belongs to the technical field of noise reduction of exhaust cabinets, in particular to a sealed labyrinth connection structure for reducing noise of the exhaust cabinets, which comprises a shell, wherein one side of the shell is provided with a mounting cover, one side of the surface of the mounting cover is in threaded connection with a first bolt, an inner cavity is fixedly arranged in the shell, an upper mounting plate is fixedly arranged in the inner cavity, a connecting plate is fixedly arranged below one side of the upper mounting plate, a lower mounting plate is fixedly connected below the connecting plate, a fixing plate is fixedly arranged at one side of the middle part of the connecting plate, a first noise reduction plate is clamped at one side of the lower side of the upper mounting plate, a second noise reduction plate is clamped at one side of the upper side of the lower mounting plate, one side of the first noise reduction plate is in threaded connection with a second bolt, a first clamping groove is fixedly arranged on the surface of the lower mounting plate, and one side of the first clamping groove is provided with a second clamping groove. According to the utility model, the noise generated by the exhaust case can be maximally reduced through the labyrinth structure between the first noise reduction plate and the second noise reduction plate and the matching of the soundproof cotton.

Description

Sealing labyrinth connection structure for reducing noise of exhaust case

Technical Field

The utility model relates to the technical field of noise reduction of exhaust cabinets, in particular to a sealed labyrinth connection structure for reducing noise of an exhaust cabinet.

Background

The fan is a machine which relies on input mechanical energy to improve gas pressure and discharge gas, and meanwhile, the fan is an electric appliance which is frequently used in our daily life and is used for improving indoor air circulation. Because the fan belongs to the electrical apparatus commonly used in daily life, so the fan box needs to have a certain noise reduction structure for reducing indoor noise.

The prior art has the following problems:

the existing fan case generally generates certain noise due to resonance generated by the operation of the fan when the fan case is used, and the existing noise solving mode is that a buffer structure is added between the fan case and the mounting seat for reducing the noise, but the noise reducing effect of the fan case cannot be effectively reduced, and the cost is too high.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a sealed labyrinth connection structure for reducing noise of an exhaust case, which solves the problems that the existing exhaust case can not well solve the noise problem and the cost is higher.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a reduce sealed labyrinth connection structure of exhaust case noise, includes the shell, one side of shell is provided with the installation lid, surface one side threaded connection of installation lid has first bolt, the inside fixed mounting of shell has the inner chamber, the inside fixed mounting of inner chamber has the mounting panel, one side below fixed mounting of mounting panel has the connecting plate, the below fixedly connected with lower mounting panel of connecting plate, middle part one side fixed mounting of connecting plate has the fixed plate, the below one side joint of upper mounting panel has first board of making an uproar that falls, the top one side joint of lower mounting panel has the second board of making an uproar that falls, one side surface threaded connection of first board of making an uproar has the second bolt, the surface fixed mounting of lower mounting panel has first draw-in groove, one side of first draw-in groove is provided with the second draw-in groove, the inside fixed mounting of inner chamber has the soundproof cotton, one side surface fixed mounting of shell has the screw hole.

As a preferable technical scheme of the utility model, the mounting cover is fixedly mounted with the shell, and the first bolt is in threaded connection with the mounting cover and the threaded hole.

As a preferable technical scheme of the utility model, an upper mounting plate and a lower mounting plate are fixedly arranged in the inner cavity, and connecting plates are fixedly connected to two sides between the upper mounting plate and the lower mounting plate.

As a preferable technical scheme of the utility model, the surface horizontal direction of the lower mounting plate is fixedly provided with the first clamping groove, the second clamping groove is fixedly arranged on the surface of the lower mounting plate in the horizontal direction, and the upper mounting plate and the lower mounting plate are of the same structure.

As a preferable technical scheme of the utility model, the first noise reduction plate and the second noise reduction plate are fixedly connected with the fixed plate and are installed in a staggered mode, and the second bolts are in threaded connection with the first noise reduction plate, the second noise reduction plate and the fixed plate.

As a preferable technical scheme of the utility model, the front surface of the fixed plate is fixedly provided with a first group of the first noise reduction plates and a second noise reduction plate, and the back mirror image of the fixed plate is provided with a second group.

As a preferable technical scheme of the utility model, soundproof cotton is fixedly arranged between the upper mounting plate and the inner cavity, soundproof cotton is fixedly arranged between the lower mounting plate and the inner cavity, and soundproof cotton is fixedly arranged between the connecting plate and the inner cavity.

Compared with the prior art, the utility model provides the sealing labyrinth connection structure for reducing the noise of the exhaust case, which has the following beneficial effects:

the utility model provides a sealed labyrinth connection structure for reducing noise of an exhaust case, which is characterized in that an upper mounting plate and a lower mounting plate are arranged in a shell, two sides between the upper mounting plate and the lower mounting plate are fixedly connected through a connecting plate, a fixed plate is fixedly arranged between the connecting plates, a first noise reduction plate and a second noise reduction plate are fixedly arranged on the surface of the fixed plate, the first noise reduction plate and the second noise reduction plate are fixedly arranged through second bolts, meanwhile, the first noise reduction plate and the second noise reduction plate are arranged in a staggered manner, the other group of the first noise reduction plate and the second noise reduction plate which are arranged on the back of the fixed plate and the front surface of the fixed plate in a mirror image manner form a labyrinth structure, and meanwhile, soundproof cotton is filled between the upper mounting plate, the lower mounting plate and an inner cavity, and the soundproof cotton can further reduce noise emission through the soundproof cotton.

Drawings

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

FIG. 2 is a front view showing the internal structure of the housing of the present utility model;

FIG. 3 is a rear elevational view of the internal structure of the housing of the present utility model;

fig. 4 is a top view of the upper mounting plate structure of the present utility model.

In the figure: 1. a housing; 2. a mounting cover; 3. a first bolt; 4. an inner cavity; 5. an upper mounting plate; 6. a connecting plate; 7. a lower mounting plate; 8. a fixing plate; 9. a first noise reduction plate; 10. a second noise reduction plate; 11. a second bolt; 12. a first clamping groove; 13. a second clamping groove; 14. soundproof cotton; 15. and (3) a threaded hole.

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.

Referring to fig. 1 to 4, in the present embodiment: the utility model provides a reduce sealed labyrinth connection structure of exhaust case noise, includes shell 1, and one side of shell 1 is provided with installation lid 2, and the surface side of installation lid 2 threaded connection has first bolt 3, installs installation lid 2 through first bolt 3; an inner cavity 4 is fixedly arranged in the shell 1, and sound insulation cotton 14 is arranged through the inner cavity 4; an upper mounting plate 5 is fixedly arranged in the inner cavity 4, and a first noise reduction plate 9 is arranged through the upper mounting plate 5; a connecting plate 6 is fixedly arranged below one side of the upper mounting plate 5, a lower mounting plate 7 is fixedly connected below the connecting plate 6, and a second noise reduction plate 10 is arranged through the lower mounting plate 7; a fixed plate 8 is fixedly arranged on one side of the middle part of the connecting plate 6, a first noise reduction plate 9 is clamped on one side of the lower part of the upper mounting plate 5, a second noise reduction plate 10 is clamped on one side of the upper part of the lower mounting plate 7, a second bolt 11 is connected with one side surface of the first noise reduction plate 9 in a threaded manner, and the first noise reduction plate 9 and the second noise reduction plate 10 are fixed through the second bolt 11; the surface of the lower mounting plate 7 is fixedly provided with a first clamping groove 12, one side of the first clamping groove 12 is provided with a second clamping groove 13, the inside of the inner cavity 4 is fixedly provided with soundproof cotton 14, and one side surface of the shell 1 is fixedly provided with a threaded hole 15.

In the embodiment, the mounting cover 2 is fixedly mounted with the housing 1, the first bolt 3 is in threaded connection with the mounting cover 2 and the threaded hole 15, and the mounting cover 2 and the housing 1 are fixedly mounted through the first bolt 3; an upper mounting plate 5 and a lower mounting plate 7 are fixedly arranged in the inner cavity 4, a connecting plate 6 is fixedly connected to two sides between the upper mounting plate 5 and the lower mounting plate 7, and the upper mounting plate 5 and the lower mounting plate 7 are arranged through the connecting plate 6; the surface of the lower mounting plate 7 is fixedly provided with a first clamping groove 12 in the horizontal direction, a second clamping groove 13 is fixedly arranged on the surface of the lower mounting plate 7 in the horizontal direction, the upper mounting plate 5 and the lower mounting plate 7 are of the same structure, and a noise reduction plate is arranged through the first clamping groove 12 and the second clamping groove 13; the first noise reduction plate 9 and the second noise reduction plate 10 are fixedly connected with the fixed plate 8 and are installed in a staggered mode, the second bolts 11 are in threaded connection with the first noise reduction plate 9, the second noise reduction plate 10 and the fixed plate 8, and the first noise reduction plate 9 and the second noise reduction plate 10 are installed through the second bolts 11; the front surface of the fixed plate 8 is fixedly provided with a first group of first noise reduction plates 9 and a second noise reduction plates 10, and the back mirror image of the fixed plate 8 is provided with a second group; an acoustic insulation cotton 14 is fixedly arranged between the upper mounting plate 5 and the inner cavity 4, an acoustic insulation cotton 14 is fixedly arranged between the lower mounting plate 7 and the inner cavity 4, and an acoustic insulation cotton 14 is fixedly arranged between the connecting plate 6 and the inner cavity 4.

The working principle and the using flow of the utility model are as follows: the operator is through installing shell 1 inside the exhaust fan case, through the dislocation installation between the first noise reduction board 9 of fixed connection between the upper mounting panel 5 and the fixed plate 8 in the inside of shell 1 and the second noise reduction board 10 of fixed mounting between lower mounting panel 7 and fixed plate 8, and the back of fixed plate 8 and the first noise reduction board 9 of another group of second noise reduction board 10 of fixed plate 8 openly opposite mirror image installation, can make an uproar the noise that the exhaust fan produced under the work through the effect of two sets of first noise reduction boards 9 of positive and negative and second noise reduction board 10 and the soundproof cotton 14 of packing in the inside inner chamber 4 of shell 1, simultaneously because the first draw-in groove 12 and the second draw-in groove 13 that the surface of upper mounting panel 5 and lower mounting panel 7 was seted up make an uproar board 9 and second noise reduction board 10's loading and unloading also more convenient.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a reduce sealed labyrinth connection structure of exhaust case noise which characterized in that: including shell (1), one side of shell (1) is provided with installation lid (2), the surface one side threaded connection of installation lid (2) has first bolt (3), the inside fixed mounting of shell (1) has inner chamber (4), the inside fixed mounting of inner chamber (4) has mounting panel (5), one side below fixed mounting of upper mounting panel (5) has connecting plate (6), the below fixedly connected with of connecting plate (6) down mounting panel (7), the middle part one side fixed mounting of connecting plate (6) has fixed plate (8), the below one side joint of upper mounting panel (5) has first noise reduction board (9), the top one side joint of lower mounting panel (7) has second noise reduction board (10), one side surface threaded connection of first mounting panel (9) has second bolt (11), the surface fixed mounting of lower mounting panel (7) has first draw-in groove (12), one side of first draw-in groove (12) is provided with second draw-in groove (13), the inside fixed mounting of cotton (4) has screw hole (14) of inner chamber (1), one side of making an uproar that falls.

2. The sealed labyrinth connection structure for reducing noise of an exhaust fan case according to claim 1, wherein: the mounting cover (2) is fixedly mounted with the shell (1), and the first bolt (3) is in threaded connection with the mounting cover (2) and the threaded hole (15).

3. The sealed labyrinth connection structure for reducing noise of an exhaust fan case according to claim 1, wherein: the inner part of the inner cavity (4) is fixedly provided with an upper mounting plate (5) and a lower mounting plate (7), and two sides between the upper mounting plate (5) and the lower mounting plate (7) are fixedly connected with connecting plates (6).

4. The sealed labyrinth connection structure for reducing noise of an exhaust fan case according to claim 1, wherein: the surface horizontal direction of lower mounting panel (7) fixed mounting has first draw-in groove (12), second draw-in groove (13) horizontal direction fixed mounting is at the surface of lower mounting panel (7), just go up mounting panel (5) and lower mounting panel (7) are the same structure.

5. The sealed labyrinth connection structure for reducing noise of an exhaust fan case according to claim 1, wherein: the first noise reduction plate (9) and the second noise reduction plate (10) are fixedly connected with the fixed plate (8), the first noise reduction plate and the second noise reduction plate are installed in a staggered mode, and the second bolts (11) are in threaded connection with the first noise reduction plate (9), the second noise reduction plate (10) and the fixed plate (8).

6. The sealed labyrinth connection structure for reducing noise of an exhaust fan case according to claim 1, wherein: the front of the fixed plate (8) is fixedly provided with a first group of first noise reduction plates (9) and second noise reduction plates (10), and the back of the fixed plate (8) is provided with a second group in a mirror image mode.

7. The sealed labyrinth connection structure for reducing noise of an exhaust fan case according to claim 1, wherein: soundproof cotton (14) is fixedly arranged between the upper mounting plate (5) and the inner cavity (4), soundproof cotton (14) is fixedly arranged between the lower mounting plate (7) and the inner cavity (4), and soundproof cotton (14) is fixedly arranged between the connecting plate (6) and the inner cavity (4).