Muffler matched with ventilator

Abstract

The silencer comprises a ventilator body, an inner pipe, an outer pipe and a second sound absorption inner cotton layer, the two sides of the ventilator body are connected with an air inlet and a motor part respectively, and the ventilator body, the air inlet and the motor part are sleeved with a rectangular resistive sheet type silencing isolation cover. A ventilation opening is connected into one side of the rectangular resistive sheet type noise reduction isolation cover. Wind noise is diffused when entering the ventilation opening through the air inlet, the wind noise in the ventilation opening is blocked and absorbed through cooperation of the inner pipe and the outer pipe, the second sound absorption inner cotton layer can absorb the wind noise, diffusion of the wind noise can be effectively reduced through the arrangement of the vacuum cavity, and the noise reduction effect is good. And a fourth damping block is arranged, so that the inner pipe and the outer pipe can be prevented from vibrating, the possibility that the inner pipe and the outer pipe generate noise is avoided, the noise elimination advantage is achieved, the noise is blocked in the operation process of the ventilator, workers can normally communicate around the ventilator body, and the use convenience of the ventilator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilators, in particular to a muffler used for a ventilator. Background Art

[0002] A ventilator is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. The exhaust pressure is lower than 1.5×10^4 Pa. Modern ventilators are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air intake of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household appliances, drying and selection of grains, wind tunnel wind sources and inflation and propulsion of hovercraft, etc.

[0003] The silencer for ventilators is suitable for silencing ventilators in civil buildings and industrial blowers and induced draft fans.

[0004] Ventilators are needed in the process of ventilating indoor spaces. Traditional ventilators produce a lot of noise during operation. It is difficult for workers to communicate normally when working around the ventilators. The workers need to get close to each other to complete the conversation, which reduces the convenience of using the ventilators.

[0005] Secondly, if the existing ventilator and the muffler are integrated into one structure to solve the muffler function, it will be difficult to operate during the regular maintenance and inspection, and the maintenance work will not be convenient. The problem of time-consuming appears, which urgently needs to be developed. Utility Model Content

[0006] The purpose of the utility model is to provide a muffler for a ventilator to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a muffler for a ventilator, comprising a ventilator body, an inner tube, an outer tube and a second sound-absorbing inner cotton layer, the two sides of the ventilator body are respectively connected with an air inlet and a motor part, the outside of the ventilator body, the air inlet and the motor part are covered with a rectangular resistive sheet-type sound-absorbing cover, one side of the rectangular resistive sheet-type sound-absorbing cover is connected with a vent, the air inlet is placed in the vent, the inner surface of the vent is paved with an inner tube and an outer tube, a second sound-absorbing inner cotton layer is connected between the inner tube and the outer tube, the interior of the second sound-absorbing inner cotton layer is connected with a vacuum chamber, and the interior of the vacuum chamber is evenly spaced with fourth shock-absorbing blocks.

[0008] Preferably, the top and one side of the motor part are respectively connected to a first shock absorbing block and a second shock absorbing block, and the other sides of the first shock absorbing block and the second shock absorbing block are simultaneously connected to the inner top and inner side of the rectangular resistive sheet type sound-absorbing cover.

[0009] Preferably, the bottom of the motor part is connected to a shock-absorbing seat, the bottom of the shock-absorbing seat is connected to a vacuum buffer frame, and the tops of both ends of the vacuum buffer frame are respectively connected to the two sides of the bottom of the rectangular resistive sheet type sound-absorbing shield.

[0010] Preferably, an operating panel is provided inside the front side of the rectangular resistive sheet sound-absorbing cover, the surface on the front side of the operating panel is symmetrically connected with an external extension structure, the top and bottom of the external extension structure are symmetrically connected with fixing blocks, and the rear side of the fixing blocks is connected to the surface of the rectangular resistive sheet sound-absorbing cover.

[0011] Preferably, the top and bottom of the outer surface of the vent are symmetrically connected with clamping connection components, and the vent is fastened to the inside of one side of the rectangular resistive sheet-type sound-absorbing cover through the clamping connection components.

[0012] Preferably, the inner surface of the vacuum buffer frame is paved with a first sound-absorbing inner cotton layer, and third shock-absorbing blocks are evenly connected to the inside of the vacuum buffer frame, and both ends of the third shock-absorbing blocks are connected to the surface of the first sound-absorbing inner cotton layer.

[0013] Preferably, a sliding block is slidingly provided inside the fixed block, the sliding block is connected to the inner side of the fixed block through a spring, the side of the sliding block is connected to a fixing plug-in, the front side of the sliding block is connected to a toggle block, the front side of the fixed block is internally connected to a limiting groove, the toggle block is movably arranged in the limiting groove, the top and bottom of the external extension structure are symmetrically connected with fixing grooves, and the fixing grooves correspond to the position settings of the fixing plug-in.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) This type of ventilator is equipped with a silencer. When the wind noise enters the vent through the air inlet, it diffuses. The inner tube and the outer tube cooperate to block and absorb the wind noise in the vent. The second sound-absorbing inner cotton layer can absorb the wind noise. The setting of the vacuum chamber can effectively reduce the diffusion of wind noise. The setting of the fourth shock-absorbing block can prevent the inner tube and the outer tube from vibrating, thereby preventing the possibility of noise generated by the two tubes. It has the advantage of silencer. The noise of the ventilator is blocked during operation, so that workers can communicate normally around the ventilator body, which improves the convenience of using the ventilator.

[0016] (2) This type of ventilator is equipped with a muffler, which can silence the motor part connected to the ventilator body and the entire structure connected thereto by using the first damping block, the second damping block, the damping seat, the vacuum buffer seat frame, the first sound-absorbing inner cotton layer and the third damping block, so as to avoid excessive noise from the motor part and affect the normal use of the ventilator body;

[0017] (3) This type of fan is equipped with a silencer. By using a spring, a sliding block, a fixing plug-in, a toggle block and a fixing groove in coordination, the sliding block can be manually toggled inside the fixed block to adjust the plug-in state of the fixing plug-in and the fixing groove. The spring's resilience is used to clamp the two fixing plug-ins to the externally extending structure, and the detachment and connection state of the operating panel can be controlled, so that the later staff can perform maintenance and other operations at the preset operating port corresponding to the position of the operating panel, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 It is a side view structural diagram of the connection between the rectangular resistive sheet type sound-absorbing cover and the operation panel, the external extension structure and the fixing block of the utility model;

[0021] Figure 4 It is a schematic diagram of a partially enlarged side view of the utility model, in which a rectangular resistive sheet type sound-absorbing shield is connected to an external extension structure and an operating panel through a clamping plug-in;

[0022] Figure 5 It is a side view structural schematic diagram of the connection between the rectangular resistive sheet type sound-absorbing shield and the air inlet and the vent of the utility model.

[0023] In the figure: 1. Fan body; 2. Air inlet; 3. Motor part; 4. Rectangular resistive sheet type sound-absorbing cover; 5. Ventilation port; 6. First shock-absorbing block; 7. Second shock-absorbing block; 8. Shock-absorbing seat; 9. Vacuum buffer seat frame; 10. First sound-absorbing inner cotton layer; 11. Third shock-absorbing block; 12. Clamping connection assembly; 13. Inner tube; 14. Outer tube; 15. Second sound-absorbing inner cotton layer; 16. Vacuum chamber; 17. Fourth shock-absorbing block; 18. Operating panel; 19. External extension structure; 1901. Fixing groove; 20. Fixed block; 2001. Limiting groove; 21. Sliding block; 2101. Fixing plug-in; 2102. Toggle block; 22. 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. 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] See also Figure 1-5The utility model provides an embodiment: a muffler for a ventilator, comprising a ventilator body 1, an inner tube 13, an outer tube 14 and a second sound-absorbing inner cotton layer 15, the two sides of the ventilator body 1 are respectively connected with an air inlet 2 and a motor part 3, the top and one side of the motor part 3 are respectively connected with a first damping block 6 and a second damping block 7, the other sides of the first damping block 6 and the second damping block 7 are simultaneously connected with the inner top and the inner side of a rectangular resistive sheet type soundproofing cover 4;

[0026] The fan body 1, the air inlet 2 and the motor part 3 are covered with a rectangular resistive sheet type soundproofing cover 4, the front side of the rectangular resistive sheet type soundproofing cover 4 is provided with an operation panel 18, the surface of the front side of the operation panel 18 is symmetrically connected with an external extension structure 19, the top and bottom of the external extension structure 19 are symmetrically connected with a fixing block 20, and the rear side of the fixing block 20 is connected to the surface of the rectangular resistive sheet type soundproofing cover 4;

[0027] A vent 5 is connected to one side of the rectangular resistive sheet type sound-absorbing cover 4, and a clamping connection component 12 is symmetrically connected to the top and bottom of the outer surface of the vent 5. The vent 5 is fastened to one side of the rectangular resistive sheet type sound-absorbing cover 4 through the clamping connection component 12;

[0028] The air inlet 2 is placed in the vent 5, and the inner surface of the vent 5 is paved with an inner tube 13 and an outer tube 14. When the wind noise enters the vent 5 through the air inlet 2, it diffuses. The wind noise in the vent 5 is blocked and absorbed by the cooperation of the inner tube 13 and the outer tube 14.

[0029] A second sound-absorbing inner cotton layer 15 is connected between the inner tube 13 and the outer tube 14, and a vacuum cavity 16 is connected inside the second sound-absorbing inner cotton layer 15. The second sound-absorbing inner cotton layer 15 can absorb wind noise, wherein the setting of the vacuum cavity 16 can effectively reduce the diffusion of wind noise;

[0030] The interior of the vacuum chamber 16 is connected with fourth shock-absorbing blocks 17 at equal intervals. The fourth shock-absorbing blocks 17 can prevent the inner tube 13 and the outer tube 14 from vibrating, thereby preventing the possibility of noise generated by the two tubes themselves, and have the advantage of noise reduction.

[0031] The bottom of the motor part 3 is connected with a shock absorbing seat 8, the bottom of the shock absorbing seat 8 is connected with a vacuum type buffer seat frame 9, and the tops of both ends of the vacuum type buffer seat frame 9 are respectively connected to the two sides of the bottom of the rectangular resistive sheet type sound absorbing cover 4.

[0032] The inner surface of the vacuum buffer frame 9 is paved with a first sound-absorbing inner cotton layer 10, and the interior of the vacuum buffer frame 9 is evenly connected with third shock-absorbing blocks 11, and both ends of the third shock-absorbing blocks 11 are connected to the surface of the first sound-absorbing inner cotton layer 10. The coordinated use of the first shock-absorbing block 6, the second shock-absorbing block 7, the shock-absorbing seat 8, the vacuum buffer frame 9, the first sound-absorbing inner cotton layer 10 and the third shock-absorbing block 11 can silence the motor part 3 connected to the fan body 1 and the entire structural connection to avoid excessive noise from the motor part 3.

[0033] The fixed block 20 is provided with a sliding block 21 for sliding inside, and the sliding block 21 is connected to the inner side of the fixed block 20 through a spring 22. The side of the sliding block 21 is connected to a fixing plug-in 2101, and the front side of the sliding block 21 is connected to a toggle block 2102. The front side of the fixed block 20 is connected to a limiting groove 2001, and the toggle block 2102 is movably arranged in the limiting groove 2001. The top and bottom of the external extension structure 19 are symmetrically connected to fixing grooves 1901, and the fixing grooves 1901 and The position setting of the fixing plug-in 2101 corresponds to the coordinated use of the spring 22, the sliding block 21, the fixing plug-in 2101, the toggle block 2102 and the fixing groove 1901, so that the sliding block 21 is manually toggled to slide in the fixed block 20 to adjust the plug-in state of the fixing plug-in 2101 and the fixing groove 1901. The resilience of the spring 22 is utilized to clamp the two fixing plug-ins 2101 to the external extension structure 19, so that the detachment and connection state of the operating panel 18 can be controlled.

[0034] When the embodiment of the present application is in use: the wind noise diffuses when entering the vent 5 through the air inlet 2, and the wind noise in the vent 5 is blocked and absorbed by the cooperation of the inner tube 13 and the outer tube 14, then the second sound-absorbing inner cotton layer 15 can absorb the wind noise, wherein the setting of the vacuum chamber 16 can effectively reduce the diffusion of wind noise, and the setting of the fourth shock-absorbing block 17 can prevent the inner tube 13 and the outer tube 14 from vibrating, thereby preventing the possibility of noise generated by both themselves, and has the advantage of silencing, and the noise of the fan is blocked during operation, and the first shock-absorbing block 6, the second shock-absorbing block 7, the shock-absorbing seat 8, the vacuum buffer seat frame 9, the first sound-absorbing inner cotton layer 10 and the third shock-absorbing block 11 are used in combination, so as to silence the motor part 3 connected to the fan body 1 and the whole structure connected thereto, so as to avoid excessive noise from the motor part 3 and affect the normal use of the fan body 1.

Claims

1. A muffler for a ventilator, characterized in that: The invention comprises a ventilator body (1), an inner tube (13), an outer tube (14) and a second sound-absorbing inner cotton layer (15); the two sides of the ventilator body (1) are respectively connected to an air inlet (2) and a motor part (3); the outer parts of the ventilator body (1), the air inlet (2) and the motor part (3) are covered with a rectangular resistive plate type sound-absorbing cover (4); one side of the rectangular resistive plate type sound-absorbing cover (4) is connected to a ventilating port (5); the air inlet (2) is arranged in the ventilating port (5); the inner surface of the ventilating port (5) is paved with an inner tube (13) and an outer tube (14); the second sound-absorbing inner cotton layer (15) is connected between the inner tube (13) and the outer tube (14); the interior of the second sound-absorbing inner cotton layer (15) is connected to a vacuum chamber (16); the interior of the vacuum chamber (16) is connected to fourth shock-absorbing blocks (17) at equal intervals.

2. A muffler for a ventilator according to claim 1, characterized in that: The top and one side of the motor part (3) are respectively connected to a first shock absorbing block (6) and a second shock absorbing block (7); the other sides of the first shock absorbing block (6) and the second shock absorbing block (7) are simultaneously connected to the inner top and inner side of the rectangular resistive sheet type sound-absorbing cover (4).

3. A muffler for a ventilator according to claim 2, characterized in that: The bottom of the motor part (3) is connected to a shock absorbing seat (8), the bottom of the shock absorbing seat (8) is connected to a vacuum type buffer seat frame (9), and the tops of both ends of the vacuum type buffer seat frame (9) are respectively connected to the two sides of the bottom of the rectangular resistive sheet type sound absorbing shield (4).

4. A muffler for a ventilator according to claim 1, characterized in that: An operating panel (18) is arranged inside the front side of the rectangular resistive sheet-type sound-absorbing cover (4); the surface of the front side of the operating panel (18) is symmetrically connected to an external extension structure (19); the top and bottom of the external extension structure (19) are symmetrically connected to a fixing block (20); the rear side of the fixing block (20) is connected to the surface of the rectangular resistive sheet-type sound-absorbing cover (4).

5. A muffler for a ventilator according to claim 1, characterized in that: The top and bottom of the outer surface of the vent (5) are symmetrically connected with clamping connection components (12), and the vent (5) is fastened to the inside of one side of the rectangular resistive sheet-type sound-absorbing cover (4) via the clamping connection component (12).

6. A muffler for a ventilator according to claim 3, characterized in that: The inner surface of the vacuum buffer frame (9) is paved with a first sound-absorbing inner cotton layer (10), and third shock-absorbing blocks (11) are connected to the interior of the vacuum buffer frame (9) at equal intervals, and both ends of the third shock-absorbing blocks (11) are connected to the surface of the first sound-absorbing inner cotton layer (10).

7. A muffler for a ventilator according to claim 4, characterized in that: A sliding block (21) is slidably arranged inside the fixed block (20), and the sliding block (21) is connected to the inner side of the fixed block (20) through a spring (22). A fixing plug-in unit (2101) is connected to the side of the sliding block (21), and a toggle block (2102) is connected to the front side of the sliding block (21). A limiting groove (2001) is connected inside the front side of the fixed block (20), and the toggle block (2102) is movably arranged in the limiting groove (2001). The top and bottom of the external extension structure (19) are symmetrically connected with fixing grooves (1901), and the positions of the fixing grooves (1901) and the fixing plug-in unit (2101) are arranged correspondingly.

Images