Dustproof air conditioning unit silencer

Abstract

The utility model relates to the field of sensor accessory machining, in particular to a dustproof air conditioning unit silencer which comprises a silencer shell used for being installed with a dustproof air conditioning unit in a butt joint mode, and a connecting bolt penetrating through the upper portion of the silencer shell and used for being connected with a vertical silencing plate. The silencer is provided with the connecting bolts, the vertical silencing plates, the embedded grooves, the silencing cotton, the fixed sliding rails and the transverse silencing plates, wind sound, friction sound and other noise entering the silencer shell from the air inlet are vertically separated by the multiple sets of vertical silencing plates at first, then the noise is transmitted in the silencer shell along with the sound, and the noise is reduced. The noise which is vertically separated is secondarily separated by the transverse noise reduction plate which is transversely placed, so that the sound concentration is reduced, the vertical noise reduction plate, the noise reduction cotton and the transverse noise reduction plate have certain noise reduction capability, the volume of the generated noise is greatly reduced after the separated noise successively passes through the components, and the noise reduction effect is improved. The purpose of noise elimination of the dustproof air conditioning unit is achieved.

Description

Technical Field

[0001] The utility model relates to the field of sensor accessory processing, in particular to a dustproof air conditioning unit muffler. Background Art

[0002] A sensor is a device that converts non-electrical quantities into electrical quantities and is widely used in all walks of life. Sensor accessory processing technology refers to the technology of processing and molding sensor-related materials to ensure the performance and quality of the sensor. The dust-proof air-conditioning unit silencer is also one of the many applications of sensor accessories. The dust-proof air-conditioning unit silencer is a device that uses the principles of sound absorption, reflection, interference, etc. to reduce the airflow noise in the ventilation and air-conditioning system. According to the different silencer principles, it can be divided into resistive, reactive, resonant and composite types. Resistive silencers use the sound absorption effect of sound-absorbing materials to eliminate noise.

[0003] After searching, a dust-proof air-conditioning unit silencer with publication number CN217109984U is found, which specifically discloses a dust-proof air-conditioning unit silencer, belonging to the technical field of air-conditioning silencers, and comprises a silencer body, an outer surface of the silencer body is provided with an expansion chamber, a silencer plate is provided inside the silencer body, a dust-proof cleaning device is provided on the top of the expansion chamber, the dust-proof cleaning device comprises two first rectangular plates, a dust-proof net and a cleaning structure, and the dust-proof air-conditioning unit silencer, by providing a dust-proof cleaning device, under the action of two threaded rods, in cooperation with the action of the first round rod and the round disk, can drive the two threaded cylinders to move toward each other, and then can drive the two dust-proof nets to move toward each other, and then can protect the air inlets on both sides of the silencer body to prevent dust from entering the silencer body from the air inlet, and the dust-proof net will not affect the air conditioning wind entering the silencer body, so that the dust can be isolated from the outside of the silencer body to prevent dust from adhering to the silencer plate and affecting its use.

[0004] During the use of the existing dust-proof air-conditioning unit muffler, due to the large friction sound and wind noise at the air inlet of the air-conditioning unit, the noise cannot be effectively reduced by only relying on the muffler plate inside the muffler for noise reduction. In addition, the above-mentioned comparative case also lacks other means to enhance noise reduction. In this way, when the dust-proof air-conditioning unit is running at high load, the noise emitted will still have a certain impact on the surrounding environment, which is inconvenient for the normal use of the dust-proof air-conditioning unit.

[0005] Therefore, it is necessary to invent a dustproof air conditioning unit muffler to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a dustproof air-conditioning unit silencer, which achieves the purpose of silencing the dustproof air-conditioning unit through connecting bolts, vertical silencer plates, embedded grooves, silencer cotton, fixed slide rails and horizontal silencer plates, and such silencer means also enhances the noise reduction ability of the device for the noise of the dustproof air-conditioning unit, and avoids the problem that the noise level cannot be effectively reduced if only the silencer plate inside the silencer is used for silencer, and also reduces the noise level emitted when the dustproof air-conditioning unit is running at high load, thereby eliminating the noise level emitted by the dustproof air-conditioning unit to the surrounding environment. The effect of ensuring the normal use of the dust-proof air-conditioning unit is achieved by reducing the friction sound and wind noise at the air inlet of the air-conditioning unit during use of the muffler of the dust-proof air-conditioning unit in the prior art. If the noise is only reduced by the muffler plate inside the muffler, the noise cannot be effectively reduced. In addition, the above-mentioned comparative case also lacks other means of strengthening the noise reduction. In this way, when the dust-proof air-conditioning unit is running at high load, the noise emitted will still have a certain impact on the surrounding environment, which is inconvenient for the normal use of the dust-proof air-conditioning unit.

[0007] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a dustproof air conditioning unit muffler, comprising a muffler housing, which is used for docking and installation with the dustproof air conditioning unit;

[0008] A connecting bolt is passed through the top of the muffler shell and is used to connect and install the vertical muffler plate, and a muffler hole is opened on the surface of the vertical muffler plate. An embedded groove is opened inside the muffler shell, and a muffler cotton is arranged inside the embedded groove;

[0009] A limit block is arranged at one side of the embedded groove, and is used to limit the installation of the silencer cotton. A telescopic groove is provided inside the limit block, and a damping reset rod is fixedly installed inside the telescopic groove, and a resistance plate is fixedly installed at one end of the damping reset rod;

[0010] The fixed slide rail is arranged inside the muffler shell and is used to install the transverse sound-absorbing board. The outside of the fixed slide rail is movably connected with a fixed sleeve. A positioning bolt penetrates one side of the fixed sleeve. The outside of the fixed sleeve is fixedly installed with the transverse sound-absorbing board.

[0011] Preferably, a bottom mounting frame is fixedly mounted on the bottom of the muffler housing, and a fixing bolt penetrates the top of the bottom mounting frame.

[0012] Preferably, a docking slot is provided on the outside of the muffler shell, a docking block is movably connected inside the docking slot, an air inlet is fixedly installed on one end of the docking block, a fastening bolt passes through the outside of the air inlet, and a dust filter is movably connected to one end of the fastening bolt.

[0013] Preferably, the docking card block fixedly installed on the outside of the air inlet is engaged with a docking card slot provided on the outside of the muffler shell, and the docking card block and the docking card slot are used in conjunction with each other.

[0014] Preferably, the abutment plate is movably connected to the limit block, and the damping reset rod is symmetrically arranged with respect to the central axis of the limit block.

[0015] Preferably, the transverse sound-absorbing plate is movably connected to the muffler shell, and the fixed slide rail is slidably connected to the fixed slide sleeve.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] 1. The utility model is provided with connecting bolts, vertical sound-absorbing plates, embedded grooves, sound-absorbing cotton, fixed slide rails and horizontal sound-absorbing plates. The wind sound, friction sound and other noises entering the muffler housing from the air inlet are firstly separated vertically by multiple groups of vertical sound-absorbing plates. Then, as the sound is transmitted inside the muffler housing, the vertically separated noise encounters the horizontally placed horizontal sound-absorbing plates for secondary separation, thereby reducing the concentration of the sound. Moreover, the vertical sound-absorbing plates, sound-absorbing cotton and horizontal sound-absorbing plates all have certain sound-absorbing capabilities. After the separated noise passes through these components successively, the volume of the generated noise is greatly reduced, thereby achieving the purpose of sound-absorbing the dust-proof air-conditioning unit. Moreover, such sound-absorbing means also enhances the noise-absorbing capability of the device for the noise of the dust-proof air-conditioning unit, and also avoids the problem that the noise distribution cannot be effectively reduced if only the sound-absorbing plates inside the muffler are used for sound-absorbing. Furthermore, the noise distribution emitted when the dust-proof air-conditioning unit is running at high load is reduced, thereby eliminating the influence of the dust-proof air-conditioning unit on the surrounding environment, and ensuring the normal use of the dust-proof air-conditioning unit.

[0018] 2. The utility model is provided with a muffler shell, a docking slot, a docking card block, an air inlet, a dust filter, a limit block and a contact plate. When the device is used to perform silencing work for the dust-proof air-conditioning unit, the dust filter can eliminate part of the dust that enters the inside of the muffler shell along with the wind, and after long-term use, the air inlet can be disassembled through the docking slot and the docking card block for maintenance and cleaning, and the silencing cotton inside can also be replaced by operating the limit block and the contact plate, thus ensuring the cleanliness of the inside of the device and allowing the device to maintain good silencing ability and be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the air inlet structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the vertical sound-absorbing plate of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the sound-absorbing cotton of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the horizontal sound-absorbing board of the utility model.

[0025] Description of reference numerals:

[0026] 1. Muffler housing; 2. Bottom mounting frame; 3. Fixing bolts; 4. Docking slot; 5. Docking block; 6. Air inlet; 7. Fastening bolts; 8. Dust filter; 9. Connecting bolts; 10. Vertical silencer; 11. Silencer hole; 12. Embedded groove; 13. Silencer cotton; 14. Limit block; 15. Telescopic groove; 16. Damping reset rod; 17. Contact plate; 18. Fixed slide rail; 19. Fixed slide sleeve; 20. Positioning bolts; 21. Horizontal silencer. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The utility model provides Figure 1-5 A dustproof air conditioning unit muffler shown includes a muffler housing 1, which is used for docking and installation with the dustproof air conditioning unit;

[0029] The connecting bolt 9 passes through the top of the muffler housing 1 and is used to connect and install the vertical muffler plate 10, and the surface of the vertical muffler plate 10 is provided with a muffler hole 11, and the interior of the muffler housing 1 is provided with an embedded groove 12, and the interior of the embedded groove 12 is provided with a muffler cotton 13;

[0030] A limit block 14 is arranged at one side of the embedded groove 12, and is used to limit the installation of the silencer cotton 13. A telescopic groove 15 is provided inside the limit block 14, and a damping reset rod 16 is fixedly installed inside the telescopic groove 15. A contact plate 17 is fixedly installed at one end of the damping reset rod 16.

[0031] A fixed slide rail 18 is arranged inside the muffler shell 1 and is used to install a horizontal sound-absorbing board 21. The fixed slide rail 18 is externally movably connected with a fixed sleeve 19. A positioning bolt 20 penetrates one side of the fixed sleeve 19. A horizontal sound-absorbing board 21 is fixedly installed on the outside of the fixed sleeve 19. The vertical sound-absorbing board 10, the sound-absorbing cotton 13 and the horizontal sound-absorbing board 21 all have a certain sound-absorbing ability. The separated noise greatly reduces the volume of the noise generated after passing through these components in succession, thereby achieving the purpose of silencing the dust-proof air-conditioning unit. Moreover, such a sound-absorbing method also enhances the noise-absorbing ability of the device for the noise of the dust-proof air-conditioning unit.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, a bottom mounting frame 2 is fixedly installed at the bottom of the muffler housing 1, and a fixing bolt 3 is penetrated on the top of the bottom mounting frame 2. The structure of the bottom mounting frame 2 and the fixing bolt 3 is simple, which is convenient for the device to be docked and installed with the dust-proof air-conditioning unit. A docking slot 4 is provided on the outside of the muffler housing 1, and a docking block 5 is movably connected inside the docking slot 4. An air inlet 6 is fixedly installed on one end of the docking block 5, and a fastening bolt 7 is penetrated on the outside of the air inlet 6. A dust filter 8 is movably connected at one end of the fastening bolt 7. The dust filter 8 can eliminate part of the dust that enters the inside of the muffler housing 1 along with the wind. The docking block 5 fixedly installed on the outside of the air inlet 6 is engaged with the docking slot 4 provided on the outside of the muffler housing 1. The docking block 5 is used in conjunction with the docking slot 4. After long-term use, the air inlet 6 can be disassembled through the docking slot 4 and the docking block 5 for maintenance and cleaning.

[0033] like Figure 1 , Figure 4 and Figure 5 As shown, the contact plate 17 is movably connected to the limit block 14, and the damping reset rod 16 is symmetrically arranged with the central axis of the limit block 14. The contact plate 17 is operated to allow the damping reset rod 16 to extend toward the limit block 14 to complete the replacement of the silencer cotton 13. This ensures the cleanliness of the inside of the device and allows the device to maintain good silencer ability for normal use. The horizontal sound-absorbing plate 21 is movably connected to the muffler housing 1, and the fixed slide rail 18 is slidably connected to the fixed slide sleeve 19. The cost of the horizontal sound-absorbing plate 21 is low, and if a fault occurs, it is also convenient for maintenance personnel to replace it in time, thereby not delaying the normal use of the device.

[0034] The working principle of the utility model is as follows: first, the device and the dust-proof air-conditioning unit are docked and installed through the bottom mounting frame 2 and the fixing bolts 3, and then the spacing of the horizontal sound-absorbing plates 21 is adjusted by sliding the fixing sliding sleeve 19 on the fixing sliding rail 18, and then the vertical sound-absorbing plates 10 are installed inside the entrance of the silencer shell 1. After the preparation work is completed, the use of the silencer of the dust-proof air-conditioning unit can be started. Before the wind enters the air inlet 6 through the dust-proof air-conditioning unit, the dust filter 8 can eliminate part of the dust that enters the inside of the silencer shell 1 along with the wind, and then the wind sound, friction sound and other noises that enter the silencer shell 1 from the air inlet 6 are vertically separated by multiple groups of vertical sound-absorbing plates 10, and then as the sound is transmitted inside the silencer shell 1, the vertically separated noise encounters the horizontal sound-absorbing plates 21 placed horizontally for secondary separation, thereby reducing the concentration of the sound, and then the vertical sound-absorbing plates 10, the sound-absorbing cotton 13 and the horizontal sound-absorbing plates 21 all have a certain sound-absorbing ability, and the separated noise is greatly reduced after passing through these components one after another. The noise volume is greatly reduced, and the purpose of silencing the dust-proof air-conditioning unit is achieved. Moreover, such silencing means also enhances the noise silencing ability of the device for the noise of the dust-proof air-conditioning unit, and avoids the problem that the noise can not be effectively reduced if only the silencing plate inside the muffler is used for silencing. The silenced wind is normally discharged from the other end of the muffler shell 1. After long-term use, the air inlet 6 can be disassembled through the docking card slot 4 and the docking card block 5 for maintenance and cleaning, and then the damping reset rod 16 is extended and retracted toward the limit block 14 by operating the resistance plate 17 to leak out the limited space, so that the silencing cotton 13 in the embedded groove 12 can be taken out, thereby completing the replacement of the silencing cotton 13, thus ensuring the cleanliness of the inside of the device and allowing the device to maintain good silencing ability and can be used normally. Finally, after completing the installation and use of all the dust-proof air-conditioning unit mufflers according to the above operations, the device is maintained daily, and the use process of the dust-proof air-conditioning unit muffler is completed.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dustproof air conditioning unit muffler, characterized in that: include The muffler housing (1) is used for docking and installation with the dustproof air conditioning unit; A connecting bolt (9) is passed through the top of the muffler housing (1) and is used for connecting and installing a vertical muffler plate (10), and a muffler hole (11) is provided on the surface of the vertical muffler plate (10). An embedded groove (12) is provided inside the muffler housing (1), and a muffler cotton (13) is provided inside the embedded groove (12); A limit block (14) is arranged on one side of the embedded groove (12) and is used for limiting the installation of the silencer cotton (13). A telescopic groove (15) is provided inside the limit block (14). A damping reset rod (16) is fixedly installed inside the telescopic groove (15). A resistance plate (17) is fixedly installed at one end of the damping reset rod (16). A fixed slide rail (18) is arranged inside the muffler housing (1) and is used to install a transverse sound-absorbing plate (21), and the outside of the fixed slide rail (18) is movably connected to a fixed slide sleeve (19), one side of the fixed slide sleeve (19) is penetrated by a positioning bolt (20), and the outside of the fixed slide sleeve (19) is fixedly installed with a transverse sound-absorbing plate (21).

2. The dustproof air conditioning unit muffler according to claim 1, characterized in that: A bottom mounting frame (2) is fixedly mounted on the bottom of the muffler housing (1), and a fixing bolt (3) penetrates the top of the bottom mounting frame (2).

3. The dustproof air conditioning unit muffler according to claim 1, characterized in that: The outside of the muffler housing (1) is provided with a docking slot (4), the inside of the docking slot (4) is movably connected with a docking block (5), one end of the docking block (5) is fixedly mounted with an air inlet (6), the outside of the air inlet (6) is penetrated by a fastening bolt (7), and one end of the fastening bolt (7) is movably connected with a dust filter (8).

4. A dustproof air conditioning unit muffler according to claim 3, characterized in that: The docking card block (5) fixedly mounted on the outside of the air inlet (6) is engaged and connected with a docking card slot (4) provided on the outside of the muffler housing (1); the docking card block (5) and the docking card slot (4) are used in conjunction with each other.

5. The dustproof air conditioning unit muffler according to claim 1, characterized in that: The abutment plate (17) is movably connected to the limit block (14), and the damping reset rod (16) is symmetrically arranged with respect to the central axis of the limit block (14).

6. The dustproof air conditioning unit muffler according to claim 1, characterized in that: The transverse sound-absorbing plate (21) is movably connected to the muffler housing (1), and the fixed slide rail (18) is slidably connected to the fixed slide sleeve (19).

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