Sheet type silencer structure

Abstract

The utility model discloses a sheet type silencer structure which comprises a sheet type silencer shell, a silencing sheet combination frame is arranged in the sheet type silencer shell, silencing sheets are arranged in the silencing sheet combination frame, fixing shaft rods are arranged at the two ends of the silencing sheets, a gear transmission groove is formed in one side of the silencing sheet combination frame, and a gear is arranged in the gear transmission groove. And an angle adjusting moving seat is arranged in the gear transmission groove, and limiting plates are arranged at the upper position and the lower position of the angle adjusting moving seat correspondingly. According to the utility model, the silencing sheet is arranged to be of an adjustable structure, the mounting angle of the silencing sheet can be adjusted according to a sound wave propagation path, so that the silencing sheet is located at the optimal silencing angle, the effective area is increased, and the silencing effect is improved; according to the adjusting method, the consistent angle of each silencing sheet can be ensured, the angle adjustment is more stable and reliable, and the adjustment operation is easier.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related field of muffler, concretely to a sheet type muffler structure. BACKGROUND

[0002] Muffler refers to the airflow pipe with noise propagation, can use the pipe and elbow with sound absorption lining or utilize the pipe of sudden change of cross section and other acoustic impedance discontinuity and so on noise reduction device, make the noise in the pipe get attenuation or reflect back, the former is called resistive muffler, the latter is called resistive muffler, also has impedance composite muffler, sheet type muffler belongs to one kind of resistive muffler, has application effect good, easy control, simple construction, material price cheap etc.

[0003] There are still some disadvantages in the prior art for the sheet type muffler in use, the sound absorbing sheet in the traditional sheet type muffler is usually an integral structure with the shell, the installation angle of the sound absorbing sheet cannot be adjusted according to the path of sound wave propagation, if the installation angle is improper, the propagation path of sound wave may be changed, thereby affecting the sound absorbing effect. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a sheet type muffler structure to solve the problem that the sound absorbing sheet in the traditional sheet type muffler is usually an integral structure with the shell, the installation angle of the sound absorbing sheet cannot be adjusted according to the path of sound wave propagation, if the installation angle is improper, the propagation path of sound wave may be changed, thereby affecting the sound absorbing effect.

[0005] To achieve the above object, the utility model provides the following technical scheme: a sheet type muffler structure, including sheet type muffler shell, the inside of sheet type muffler shell is equipped with sound absorbing sheet combination frame, the inside of sound absorbing sheet combination frame is equipped with sound absorbing sheet, both ends of sound absorbing sheet are equipped with fixed axle rod, one side of sound absorbing sheet combination frame is equipped with gear transmission groove, the inside of gear transmission groove is equipped with angle adjustment mobile seat, the up and down positions of angle adjustment mobile seat are equipped with limit plate, the other end in the inside of sound absorbing sheet combination frame is equipped with fixed support plate, one end of sheet type muffler shell is equipped with air inlet, the other side of air inlet is equipped with adjusting bolt, the other end of sheet type muffler shell is equipped with sealing cover, the sealing cover is equipped with air outlet.

[0006] In further embodiments, the inside of the sound absorbing sheet is provided with a plurality of sound holes, and the sound holes are hexagonal structures.

[0007] In further embodiments, the fixed shaft rod is connected with the sound-absorbing sheet through welding, and the fixed shaft rod is connected with the angle-adjusting moving seat through a circular gear and a straight gear transmission.

[0008] In further embodiments, the angle-adjusting moving seat is connected with the limiting plate through sliding, and the cross section of the angle-adjusting moving seat is configured as a U-shaped structure.

[0009] In further embodiments, one end of the angle-adjusting moving seat is fixedly connected with the sheet-type sound-absorbing shell through an adjusting bolt, and the other end of the angle-adjusting moving seat is connected with the fixed support plate through inlaying.

[0010] In further embodiments, the sealing cover is fixedly connected with the sheet-type sound-absorbing shell through an internal hexagonal fixed bolt.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、The sound-absorbing sheet is configured as an adjustable structure in the utility model, the installation angle of the sound-absorbing sheet can be adjusted according to the path of sound wave propagation, the sound-absorbing sheet is located at the optimal sound-absorbing angle, the effective area is increased, and therefore the sound-absorbing effect is improved; the installation angle of the sound-absorbing sheet is adjusted in a gear transmission mode, the angle of each sound-absorbing sheet can be guaranteed to be consistent, the angle adjustment is more stable and reliable, and the adjustment operation is easier. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an internal structure schematic view of a sheet-type sound-absorbing structure of the utility model;

[0014] Figure 2 It is an adjusting structure schematic view of a sound-absorbing sheet of the utility model;

[0015] Figure 3 It is a front view of a sound-absorbing sheet combination frame of the utility model;

[0016] Figure 4 It is a structure schematic view of a gear transmission groove of the utility model;

[0017] Figure 5 It is a front view of a sheet-type sound-absorbing structure of the utility model.

[0018] In the drawing: 1, sheet-type sound-absorbing shell; 2, air inlet; 3, sound-absorbing sheet combination frame; 4, sound-absorbing sheet; 5, fixed support plate; 6, sealing cover; 7, air outlet; 8, internal hexagonal fixed bolt; 9, fixed shaft rod; 10, gear transmission groove; 11, angle-adjusting moving seat; 12, limiting plate; 13, sound-absorbing hole; 14, adjusting bolt; 15, circular gear; 16, straight gear. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Please refer to Figures 1-5 An embodiment provided by the present utility model: a sheet muffler structure, comprising a sheet muffler shell 1, the inside of the sheet muffler shell 1 is equipped with a muffling sheet combination frame 3, the inside of the muffling sheet combination frame 3 is equipped with a muffling sheet 4, both ends of the muffling sheet 4 are equipped with fixed shaft rods 9, one side of the muffling sheet combination frame 3 is equipped with a gear transmission groove 10, the inside of the gear transmission groove 10 is equipped with an angle adjustment moving seat 11, the upper and lower positions of the angle adjustment moving seat 11 are both equipped with limit plates 12, the other end inside the muffling sheet combination frame 3 is equipped with a fixed support plate 5, one end of the sheet muffler shell 1 is equipped with an air inlet 2, the other side of the air inlet 2 is equipped with an adjusting bolt 14, the other end of the sheet muffler shell 1 is equipped with a sealing cover 6, the sealing cover 6 is equipped with an air outlet 7, the sealing cover 6 and the sheet muffler shell 1 are fixedly connected through the internal hexagonal fixed bolt 8, and the internal hexagonal fixed bolt 8 is used for fixing the position of the sealing cover 6 closed; the muffling sheet combination frame 3 is used for assembling and fixing multiple muffling sheets 4, the muffling sheet 4 is used for eliminating noise, the fixed shaft rod 9 is used for connecting and installing the muffling sheet 4 with the circular gear 15, the gear transmission groove 10 is used for installing the angle adjustment moving seat 11, the angle adjustment moving seat 11 is used for parallel moving the spur gear 16, so as to drive the circular gear 15 to rotate, the fixed support plate 5 is used for sealing the other end inside the muffling sheet combination frame 3, and also increases the stability of the movement of the angle adjustment moving seat 11, the adjusting bolt 14 is used for adjusting the position of the angle adjustment moving seat 11, and the sealing cover 6 is used for opening or closing the other end of the sheet muffler shell 1, facilitating internal maintenance.

[0021] The inside of the muffling sheet 4 is equipped with a plurality of sound holes 13, and the sound holes 13 are hexagonal structures, and the sound holes 13 are used for improving the muffling effect of the muffling sheet 4.

[0022] The fixed shaft rod 9 and the muffling sheet 4 are connected through welding, and the fixed shaft rod 9 and the angle adjustment moving seat 11 are connected through the transmission of the circular gear 15 and the spur gear 16, and the welding connection is used for increasing the firmness of the installation of the fixed shaft rod 9 and the muffling sheet 4.

[0023] The angle adjusting moving seat 11 is connected with the limiting plate 12 through sliding, and the section of the angle adjusting moving seat 11 is provided with a U-shaped structure, so that the angle adjusting moving seat 11 can be adjusted more easily through sliding; one end of the angle adjusting moving seat 11 is fixedly connected with the sheet type muffler shell 1 through the adjusting bolt 14, and the other end of the angle adjusting moving seat 11 is embeddedly connected with the fixed supporting plate 5; the adjusting bolt 14 is used for fixing the installation position of the one end of the angle adjusting moving seat 11 and the sheet type muffler shell 1, and simultaneously, the position of the angle adjusting moving seat 11 is adjusted.

[0024] Working principle: when used, the air inlet 2 on the sheet type muffler shell 1 is assembled with equipment through a bolt, the angle adjusting moving seat 11 is adjusted through the hand-held adjusting bolt 14, the sound absorbing sheet 4 is adjusted to a required angle through the transmission between the spur gear 16 and the circular gear 15, noise enters from the air inlet 2, and the noise in the interior is eliminated through the sound absorbing sheet 4.

[0025] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A sheet silencer structure comprising a sheet silencer housing (1), characterized by: The inside of the sheet muffler shell (1) is provided with a muffling sheet combination frame (3), the inside of the muffling sheet combination frame (3) is provided with a muffling sheet (4), both ends of the muffling sheet (4) are provided with a fixed shaft rod (9), one side of the muffling sheet combination frame (3) is provided with a gear transmission groove (10), the inside of the gear transmission groove (10) is provided with an angle adjusting moving seat (11), the up and down positions of the angle adjusting moving seat (11) are both provided with a limiting plate (12), the other end of the inside of the muffling sheet combination frame (3) is provided with a fixed supporting plate (5), one end of the sheet muffler shell (1) is provided with an air inlet (2), the other side of the air inlet (2) is provided with an adjusting bolt (14), the other end of the sheet muffler shell (1) is provided with a sealing cover (6), the sealing cover (6) is provided with an air outlet (7).

2. A structure of a sheet type muffler according to claim 1, wherein: The inside of the muffling sheet (4) is provided with a plurality of sound holes (13), and the sound holes (13) are hexagonal structures.

3. The structure of a sheet type muffler according to claim 1, wherein: The fixed shaft rod (9) and the muffling sheet (4) are connected by welding, and the fixed shaft rod (9) and the angle adjusting moving seat (11) are connected by a circular gear (15) and a spur gear (16).

4. The structure of a sheet type muffler according to claim 1, wherein: The angle adjusting moving seat (11) and the limiting plate (12) are connected by sliding, and the cross section of the angle adjusting moving seat (11) is a U-shaped structure.

5. The structure of a sheet type muffler according to claim 1, wherein: One end of the angle adjusting moving seat (11) is fixedly connected with the sheet muffler shell (1) through the adjusting bolt (14), and the other end of the angle adjusting moving seat (11) is connected with the fixed supporting plate (5) through inlaying.

6. The structure of a sheet type muffler according to claim 1, wherein: The sealing cover (6) and the sheet muffler shell (1) are fixedly connected through the internal hexagonal fixed bolt (8).

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