Multi-damping silencing sheet

Abstract

The utility model relates to the technical field of silencing sheets, in particular to a multi-damping silencing sheet which comprises a silencing sheet body and a steel backing body matched with the silencing sheet body, fixing devices are arranged in adjacent first through holes and second through holes, the silencing sheet body comprises a ceramic layer and a base layer, a first mounting groove is formed in the rear surface of the ceramic layer, and a second mounting groove is formed in the rear surface of the base layer. The base layer is arranged in the first mounting groove, and the rear ends of the multiple first heat dissipation grooves extend into the base layer. According to the fixing device provided by the utility model, under the elastic action of the spring, the fixing block presses the steel backing body, and meanwhile, the clamping rod penetrates through the second through hole. By means of the connecting mode, firm connection of the silencing piece body and the steel backing body can be guaranteed through the elastic effect of the springs. The first mounting groove is formed in the rear surface of the ceramic layer, and the base layer is arranged in the first mounting groove, so that the periphery of a base layer main body is wrapped, and the ceramic layer has a corrosion-resistant effect, so that the damping and silencing sheet cannot be corroded.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sound -absorbing sheet, especially to a multiple shock -absorbing sound -absorbing sheet. BACKGROUND

[0002] The multiple shock -absorbing sound -absorbing sheet is a kind of composite material product combined with multiple shock -absorbing and sound -absorbing functions. It is usually composed of multiple layers, each layer has its specific function, and acts together to achieve better shock -absorbing and sound -absorbing effect.

[0003] For example, the authorized announcement number "CN217271566" is named a shock -absorbing sound -absorbing sheet of temperature -resistant rust -resistant, through the heat exchange of the heat dissipation groove set, the temperature of brake pad is reduced;Through the positioning groove set, the shock -absorbing sound -absorbing sheet body can be quickly positioned with steel back, and under the action of the first bending part and the second bending part, the shock -absorbing sound -absorbing sheet body is quickly fixed on the steel back;Through the setting of corrosion -resistant coating, it is not easy to corrode and rust during use, prolongs the service life, and guarantees the use safety.

[0004] The above and prior art have the following defects: although the shock -absorbing sound -absorbing sheet body is quickly fixed on the steel back under the action of the first bending part and the second bending part, the connection will be loose under the long -term vibration, and the shock -absorbing sound -absorbing sheet will be caused to fall off in serious case;The surface of the shock -absorbing sound -absorbing sheet body is coated with corrosion -resistant coating, and the edge of the shock -absorbing sound -absorbing sheet body is still easy to be corroded, which affects the service life of the shock -absorbing sound -absorbing sheet. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a multiple shock -absorbing sound -absorbing sheet.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A kind of multiple shock -absorbing sound -absorbing sheet is designed, including sound -absorbing sheet body and the steel back body matched with it, the both sides of the sound -absorbing sheet body are equipped with two first through holes and two second through holes, adjacent first through hole and second through hole inside are equipped with fixing device, the sound -absorbing sheet body includes ceramic layer and base layer, the first installation groove is equipped on the back surface of the ceramic layer, the base layer is arranged in the first installation groove, the base layer is in surface contact with the steel back body, the front surface of the ceramic layer is equipped with a plurality of first heat dissipation grooves, and a plurality of first heat dissipation grooves extend to the base layer rear end.

[0008] Preferably, the fixing device comprises a driving rod, the driving rod is arranged inside a first through hole, an end block is arranged at the front end of the driving rod, a fixed block is arranged at the rear end of the driving rod, a spring is arranged between the sound-absorbing piece body and the fixed block, the spring is sleeved on the driving rod, a clamping rod is arranged on the front surface of the fixed block, and the clamping rod penetrates through the steel back body and a second through hole.

[0009] Preferably, the front end of the clamping rod is threadedly connected with a nut.

[0010] Preferably, the front surface of the steel back body is provided with a positioning block, the rear surface of the sound-absorbing piece body is provided with a positioning groove matched with the positioning block, and the positioning block extends into the positioning groove.

[0011] Preferably, the rear surface of the steel back body is provided with a second mounting groove matched with the fixed block at both ends, and the front surface of the fixed block is in surface contact with the front inner wall surface of the second mounting groove.

[0012] Preferably, the front surface of the sound-absorbing piece body is provided with a plurality of wavy second heat dissipation grooves.

[0013] Preferably, a fireproof sponge is arranged between the ceramic layer and the base layer.

[0014] The fixing device is arranged, the end block is pressed, the driving rod moves away from the sound-absorbing piece body, the fixed block is driven to move away from the sound-absorbing piece body, then the end block is released, the fixed block presses the steel back body under the elastic action of the spring, meanwhile, the clamping rod penetrates through the second through hole, and the installation of the sound-absorbing piece is completed. The above-mentioned connecting mode will not be loose under long-term vibration, and the sound-absorbing piece body and the steel back body can be connected firmly under the elastic action of the spring. The rear surface of the ceramic layer is provided with the first mounting groove, and the base layer is arranged inside the first mounting groove, so that the base layer body is wrapped around, the ceramic layer has corrosion resistance, the shock-absorbing sound-absorbing piece cannot be corroded, and the service life of the shock-absorbing sound-absorbing piece is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a sectional view of the whole of the utility model from the top;

[0016] Fig. 2 It is a main view of the sound-absorbing piece body of the utility model;

[0017] Fig. 3 It is a sectional view of the sound-absorbing piece body of the utility model from the top.

[0018] In the figure: the sound-absorbing sheet body 1, the steel back body 2, the first through hole 3, the second through hole 4, the ceramic layer 5, the base layer 6, the first mounting groove 7, the first heat dissipation groove 8, the driving rod 9, the end block 10, the fixed block 11, the spring 12, the clamping rod 13, the nut 14, the positioning block 15, the positioning groove 16, the second mounting groove 17, the second heat dissipation groove 18, the fire-retardant sponge 19. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0020] REFERENCE Figs. 1-3 A multiple shock-absorbing sound-absorbing sheet comprises a sound-absorbing sheet body 1 and a steel back body 2 matched with the sound-absorbing sheet body 1. Both sides of the sound-absorbing sheet body 1 are provided with two first through holes 3 and two second through holes 4. Fixed devices are arranged inside the adjacent first through holes 3 and second through holes 4. The sound-absorbing sheet body 1 comprises a ceramic layer 5 and a base layer 6. The ceramic layer 5 is provided with a first mounting groove 7 on the rear surface. The base layer 6 is arranged inside the first mounting groove 7, so that the base layer 6 is wrapped around the whole body. The ceramic layer 5 has a corrosion-resistant effect, so that the shock-absorbing sound-absorbing sheet cannot be corroded, and the service life of the shock-absorbing sound-absorbing sheet is improved. The base layer 6 is in surface contact with the steel back body 2. The ceramic layer 5 is provided with a plurality of first heat dissipation grooves 8 on the front surface. The rear ends of the plurality of first heat dissipation grooves 8 extend into the base layer 6, so that the heat in the base layer 6 can be fully dissipated through the first heat dissipation grooves 8.

[0021] The fixed devices comprise a driving rod 9 arranged inside the first through hole 3. The driving rod 9 is provided with an end block 10 on the front end. The driving rod 9 is provided with a fixed block 11 on the rear end. The sound-absorbing sheet body 1 and the fixed block 11 are provided with a spring 12. The spring 12 is sleeved on the driving rod 9. The fixed block 11 is provided with a clamping rod 13 on the front surface. The clamping rod 13 penetrates the steel back body 2 and the second through hole 4.

[0022] The clamping rod 13 is provided with a nut 14 threadedly connected on the front end. The nut 14 is threadedly connected with the clamping rod 13, so that the sound-absorbing sheet body 1 and the steel back body 2 are more firmly installed.

[0023] The steel back body 2 is provided with a positioning block 15 on the front surface. The sound-absorbing sheet body 1 is provided with a positioning groove 16 matched with the positioning block 15 on the rear surface. The positioning block 15 extends into the positioning groove 16.

[0024] The second installation groove 17 is arranged on the rear surface of the steel back body 2, and the front surface of the fixing block 11 is in contact with the inner wall surface of the second installation groove 17.

[0025] The front surface of the sound-absorbing sheet body 1 is provided with a plurality of wave-shaped second heat dissipation grooves 18.

[0026] The ceramic layer 5 and the base layer 6 are provided with a fireproof sponge 19. The fireproof sponge 19 can further provide the sound-absorbing effect.

[0027] Working principle: when the sound-absorbing sheet body 1 is installed, the positioning block 15 and the positioning groove 16 are first butted, then the end block 10 is pressed, the driving rod 9 is moved away from the sound-absorbing sheet body 1, the fixing block 11 is driven to move away from the sound-absorbing sheet body 1, then the end block 10 is released, the fixing block 11 is pressed against the steel back body 2 under the elastic action of the spring 12, the clamping rod 13 passes through the second through hole 4, the nut 14 is screwed with the clamping rod 13, and the installation of the sound-absorbing sheet is completed.

[0028] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A multiple shock-absorbing sound-damping sheet comprising a sound-damping sheet body (1) and a steel back body (2) matched therewith, characterized in that, Both sides of the sound-absorbing piece body (1) are provided with two first through holes (3) and two second through holes (4), adjacent first through holes (3) and second through holes (4) are provided with fixing devices inside, the sound-absorbing piece body (1) comprises a ceramic layer (5) and a base layer (6), the rear surface of the ceramic layer (5) is provided with a first mounting groove (7), the base layer (6) is arranged inside the first mounting groove (7), the base layer (6) is in surface contact with the steel back body (2), and the front surface of the ceramic layer (5) is provided with a plurality of first heat dissipation grooves (8), and the rear ends of the plurality of first heat dissipation grooves (8) extend into the base layer (6).

2. A multiple shock-absorbing sound-damping sheet according to claim 1, wherein The fixing device comprises a driving rod (9), the driving rod (9) is arranged inside the first through hole (3), the front end of the driving rod (9) is provided with an end block (10), the rear end of the driving rod (9) is provided with a fixed block (11), a spring (12) is arranged between the sound-absorbing piece body (1) and the fixed block (11), the spring (12) is sleeved on the driving rod (9), the front surface of the fixed block (11) is provided with a clamping rod (13), and the clamping rod (13) penetrates the steel back body (2) and the second through hole (4).

3. A multiple shock and sound absorbing sheet according to claim 2, wherein The front end of the clamping rod (13) is threadedly connected with a nut (14).

4. The multiple shock-absorbing and sound-damping sheet according to claim 1, wherein The front surface of the steel back body (2) is provided with a positioning block (15), the rear surface of the sound-absorbing piece body (1) is provided with a positioning groove (16) matched with the positioning block (15), and the positioning block (15) extends into the positioning groove (16).

5. A multiple shock and sound absorbing sheet according to claim 2, wherein The rear surface of the steel back body (2) is provided with a second mounting groove (17) matched with the fixed block (11) at both ends, and the front surface of the fixed block (11) is in surface contact with the front inner wall surface of the second mounting groove (17).

6. A multiple shock and sound absorbing sheet according to claim 1, wherein The front surface of the sound-absorbing piece body (1) is provided with a plurality of second heat dissipation grooves (18) in wave shape.

7. The multiple shock and sound absorbing sheet according to claim 1, wherein The ceramic layer (5) and the base layer (6) are provided with a fire-retardant sponge (19) therebetween. The ceramic layer (5) and the base layer (6) are provided with a fire-retardant sponge (19) therebetween.

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