Connecting structure of acoustic board

Abstract

The invention discloses a connecting structure of an acoustic panel, and relates to the technical field of acoustic panels, the connecting structure comprises a keel fixedly connected to a to-be-mounted wall, the keel is provided with an acoustic panel body, the keel is attached to the acoustic panel body, and the keel is slidably provided with a hasp sheet; the hasp piece comprises a sliding connection part and an inserting connection part, the inserting connection part is connected with the sound absorption board body in an inserting mode, the sliding connection part is located in the keel, a sliding groove is formed in the inner side wall of the keel, and the sliding connection part is connected with the sliding groove in a sliding mode. According to the connecting structure of the acoustic panel, the sliding grooves are formed in the inner walls of the two sides of the keel, the two sides of the sliding connection part are slidably connected with the two sliding grooves, the sliding connection part is located in the keel, and therefore it is avoided that a gap is generated between the acoustic panel body and the keel as much as possible, and the keel is directly attached to the acoustic panel body at the moment; therefore, the keel can support the sound-absorbing board body, and the sound-absorbing board body can be prevented from being damaged as much as possible.

Description

Technical Field

[0001] The invention relates to the technical field of sound absorbing panels, and in particular to a connection structure of sound absorbing panels. Background Art

[0002] As is known, slotted acoustic panels are an acoustic material commonly used in architecture and interior design, mainly used to reduce noise and improve the acoustics of a room. They are usually made of wood, fiber or other materials, with a series of slots on the surface, which help absorb sound waves, thereby reducing echoes and noise.

[0003] For example, the Chinese patent document with authorization announcement number CN212317355U, announcement date 2021-01-08, and name "A moisture-proof sound-absorbing board" includes a substrate layer, the upper surface of the substrate layer is provided with a plurality of grooves, and the lower surface is provided with sound-absorbing grooves parallel to the direction of the grooves; the lower surface of the substrate layer is also provided with a plurality of sound-absorbing holes, and the sound-absorbing holes are evenly arranged on the back side of the grooves and penetrate to the bottom of the grooves; a groove is provided on one side of the substrate layer, and a convex groove matching the groove is provided on the side opposite to the groove; a decorative surface layer is bonded to the area of ​​the upper surface of the substrate layer other than the groove, and a flame-retardant sound-absorbing felt is bonded to the lower surface.

[0004] The disadvantages of the above-mentioned prior art are that the buckle pieces are clamped at the edges of both sides of the keel surface, which makes the buckle pieces protrude from the surface of the keel. When the sound-absorbing panel is installed on the keel, it will first abut against the main body of the buckle pieces and cannot continue to move in the direction of the keel. This creates a gap between the sound-absorbing panel and the keel, that is, the keel cannot support the sound-absorbing panel at this time. When the sound-absorbing panel encounters a collision, it is easy to sink in the direction of the gap. Summary of the invention

[0005] The object of the present invention is to provide a connection structure of a sound absorbing panel to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A connection structure of a sound-absorbing board, comprising a keel fixed to a wall to be installed, a sound-absorbing board body being arranged on the keel, the keel being fitted with the sound-absorbing board body, and a buckle piece being slidably arranged on the keel;

[0008] The buckle piece includes a sliding portion and an inserting portion, the inserting portion is inserted into the sound absorbing board body, the sliding portion is located inside the keel, a sliding groove is provided on the inner side wall of the keel, and the sliding portion is slidably connected to the sliding groove.

[0009] In the above-mentioned connection structure of the sound absorbing board, the sliding portion is provided with a first limiting portion, the inner wall of the sliding groove is provided with a first limiting groove, and the first limiting portion is slidably connected with the first limiting groove.

[0010] In the above-mentioned connection structure of a sound-absorbing panel, a sound-absorbing felt is arranged on the sound-absorbing panel body, and the sound-absorbing panel body is attached to the keel through the sound-absorbing felt.

[0011] In the above-mentioned connection structure of a sound absorbing board, the sound absorbing board body is provided with a connection part and a connection groove, and the connection part on one sound absorbing board body is plugged into the connection groove on the adjacent sound absorbing board body.

[0012] In the above-mentioned connection structure of the sound absorbing plate, the sliding connection portion includes a fixed plate and a sliding plate slidably arranged on the fixed plate, and a first spring is arranged between the sliding plate and the fixed plate.

[0013] In the above-mentioned connection structure of the sound-absorbing board, a driving block is slidably arranged on the fixed plate, and the sliding plate is located on the movement stroke of the driving block.

[0014] In the above-mentioned connection structure of the sound-absorbing board, the slide plate is provided with a second limiting portion, the inner wall of the slide groove is provided with a second limiting groove matched with the second limiting portion, and the second limiting portion has a first position plugged into the second limiting groove and a second position away from the second limiting groove;

[0015] It also includes a power assembly for driving the second limiting portion to switch between the first position and the second position.

[0016] In the above-mentioned connection structure of a sound-absorbing board, the power assembly includes a transmission rod, a second spring is arranged between the second limiting portion and the slide plate, the transmission rod is located on the movement stroke of the driving block, and the second limiting portion is located on the movement stroke of the transmission rod.

[0017] In the above-mentioned connection structure of a sound-absorbing board, a receiving groove is provided on the slide plate, an elastic sheet is provided on the side wall of the receiving groove, a clamping part is provided on the inner wall of the limiting groove, and the clamping part is located on the movement stroke of the elastic sheet.

[0018] In the above-mentioned connection structure of the sound absorbing board, an extension portion is provided on the second limiting groove, and the extension portion is located on the movement stroke of the buckle piece.

[0019] In the above technical solution, the present invention provides a connection structure of a sound-absorbing board, wherein sliding grooves are provided on the inner walls on both sides of the keel, and the two sides of the sliding connection part are slidably connected with the two sliding grooves, so that the sliding connection part is located inside the keel, thereby avoiding as much as possible the generation of a gap between the sound-absorbing board body and the keel. At this time, the keel and the sound-absorbing board body are directly fitted, so that the keel can play a supporting effect on the sound-absorbing board body, thereby avoiding as much as possible the damage to the sound-absorbing board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 It is a schematic diagram of the connection structure between the buckle piece and the keel in the background technology;

[0022] Figure 2 An exploded schematic diagram of a buckle sheet and a keel structure provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the installation of a sound-absorbing panel provided in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the installation of a sound-absorbing panel from another perspective provided by an embodiment of the present invention;

[0025] Figure 5 An exploded schematic diagram of a buckle sheet and a keel structure provided by another embodiment of the present invention;

[0026] Figure 6 A schematic structural diagram of a second position-limiting portion provided by another embodiment of the present invention when the second position-limiting portion is in a second position;

[0027] Figure 7 A schematic structural diagram of a second position-limiting portion provided in another embodiment of the present invention when the second position-limiting portion is in the first position;

[0028] Figure 8 A schematic cross-sectional structure diagram of a buckle piece provided in yet another embodiment of the present invention;

[0029] Fig. 9 for Figure 3 A schematic diagram of the enlarged local structure at center A;

[0030] Fig.10 for Figure 8 Enlarged schematic diagram of the local structure at point B in the middle.

[0031] Description of reference numerals:

[0032] 1. keel; 2. sound-absorbing board body; 3. buckle piece; 301. sliding part; 302. plug-in part; 4. slide groove; 5. first limiting part; 6. first limiting groove; 7. clamping groove; 8. connecting part; 9. connecting groove; 10. telescopic groove; 11. first spring; 12. driving block; 13. slide plate; 14. first movable groove; 15. pull ring; 16. second limiting part; 17. second limiting groove; 18. second movable groove; 19. transmission rod; 20. second spring; 21. accommodating groove; 22. elastic sheet; 23. clamping part; 24. extension part; 25. locking part; 26. locking groove; 27. fixing plate. DETAILED DESCRIPTION

[0033] 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 with reference to the accompanying drawings.

[0034] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] Reference Figure 1-10 A connection structure of a sound-absorbing board provided in an embodiment of the present invention comprises a keel 1 fixedly connected to a wall to be installed, a sound-absorbing board body 2 is arranged on the keel 1, the keel 1 is in contact with the sound-absorbing board body 2, a buckle piece 3 is slidably arranged on the keel 1; the buckle piece 3 comprises a sliding connection portion 301 and an inserting portion 302, the inserting portion 302 is inserted into the sound-absorbing board body 2, the sliding connection portion 301 is located inside the keel 1, a sliding groove 4 is arranged on the inner side wall of the keel 1, and the sliding connection portion 301 is slidably connected to the sliding groove 4.

[0036] Specifically, the cross-section of the keel 1 is preferably U-shaped, and the bottom wall of the U-shaped keel 1 is fixed to the wall by bolts. There are multiple keels 1, and the direction of the keel 1 is arranged perpendicular to the direction of the sound-absorbing panel body 2 (that is, when the sound-absorbing panel body 2 is arranged vertically, the keel 1 is arranged horizontally, and when the sound-absorbing panel body 2 is arranged horizontally, the keel 1 is arranged vertically). A protruding portion is provided at the end of the U-shaped keel 1, and a buckle piece 3 is provided on the keel 1. The buckle piece 3 is snapped with the protruding portion at the end of the keel 1, and a slot 7 adapted to the buckle piece 3 is provided on the sound-absorbing panel body 2. The sound-absorbing panel body 2 is placed at a position close to the keel 1, and then the buckle piece 3 is pushed and inserted into the slot 7. In this way, the sound-absorbing panel body 2 can be limited perpendicular to the direction of the wall to prevent the sound-absorbing panel body 2 from tipping over as much as possible. This is a prior art and will not be described in detail (see the patent document with authorization announcement number CN212317355U for details), but the above-mentioned installation method makes the sound-absorbing panel body 2 There is a gap between the sound board body 2 and the keel 1, so it is easy to sink in the direction of the gap. One of the core innovations of the embodiment of the present invention is that the plug-in portion 302 is plugged into the card slot 7 on the sound absorbing board body 2 to fix the sound absorbing board body 2, and sliding grooves 4 are provided on the inner walls on both sides of the keel 1, and the sliding portion 301 is slidably connected with the sliding groove 4. The effect of such a setting is that under the action of the sliding connection between the sliding portion 301 and the sliding groove 4, the position of the buckle piece 3 can be easily adjusted to facilitate the connection of the plug-in portion 302 with the card slot 7. Since the sliding portion 301 is movably connected with the sliding groove 4, and the sliding groove 4 is located inside the keel 1, that is, at this time, the sliding portion 301 is also located inside the keel 1, thereby avoiding the generation of a gap between the sound absorbing board body 2 and the keel 1 as much as possible. At this time, the keel 1 is directly fitted with the sound absorbing board body 2, so that the keel 1 can have a supporting effect on the sound absorbing board body 2, thereby avoiding damage to the sound absorbing board body 2 as much as possible.

[0037] Further, the sliding part 301 is provided with a first limiting part 5, and the inner wall of the slide groove 4 is provided with a first limiting groove 6, and the first limiting part 5 is slidably connected with the first limiting groove 6. Specifically, the first limiting part 5 is a protruding structure at the edge positions of both sides of the sliding part 301, so that the cross-sections of the two are I-shaped as a whole, and the first limiting groove 6 is a T-shaped groove. The effect of such a setting is that when installing the buckle piece 3, the buckle piece 3 is placed at the end of the keel 1, and then the position of the sliding part 301 corresponds to the position of the slide groove 4, and the edge position of the sliding part 301 is inserted into the inside of the slide groove 4 to achieve the installation of the buckle piece 3, and at the same time, the first limiting part 5 will enter the first limiting groove 6. The advantage of such a setting is that under the effect of the sliding connection between the first limiting part 5 and the first limiting groove 6, the buckle piece 3 as a whole acts as a crossbeam, so that the keel 1 cannot be bent inward and outward, so as to improve the overall strength of the keel 1.

[0038] Furthermore, a sound-absorbing felt (not shown) is provided on the sound-absorbing panel body 2, and the sound-absorbing panel body 2 is attached to the keel 1 through the sound-absorbing felt. Specifically, the sound-absorbing felt is a material used for sound absorption and noise reduction, usually made of polyester fiber or other acoustic materials, which is sandwiched between the sound-absorbing panel body 2 and the keel 1 to further reduce echoes and noise reflections in the environment, thereby improving the acoustic effect in the room.

[0039] Furthermore, the sound absorbing board body 2 is provided with a connecting portion 8 and a connecting groove 9, wherein the connecting portion 8 on one sound absorbing board body 2 is plugged into the connecting groove 9 on the adjacent sound absorbing board body 2. Specifically, the connecting portion 8 is a protruding structure on the side of the sound absorbing board body 2, and the connecting groove 9 is a recessed structure on the other side of the sound absorbing board body 2, and the size of the connecting portion 8 is adapted to the size of the connecting groove 9. The effect of such a setting is that when the sound absorbing board body 2 is installed, the connecting portion 8 of the adjacent sound absorbing board body 2 is plugged into the connecting groove 9, so that the adjacent sound absorbing board bodies 2 can be connected into a whole, so as to increase the installation strength of the sound absorbing board body 2.

[0040] It should be noted that the structure of the sliding connection part 301 makes it possible for the sliding connection part 301 to be inserted into the sliding groove 4 only from the end of the keel 1, which makes installation inconvenient. As another embodiment of the present invention, the sliding connection part 301 includes a fixed plate 27 and a slide plate 13 slidably arranged on the fixed plate 27, and a first spring 11 is arranged between the slide plate 13 and the fixed plate 27. Specifically, a telescopic groove 10 is opened on the side of the fixed plate 27, and two slide plates 13 are provided, and the two slide plates 13 are slidably connected with the two telescopic grooves 10 respectively. When the end of the slide plate 13 abuts against the side wall of the telescopic groove 10, the total length of the fixed plate 27 and the slide plate 13 is less than the width of the inside of the keel 1, that is, the sliding portion 301 can directly enter the inside of the keel 1. When the slide plate 13 slides to the outside of the telescopic groove 10 to the end of the stroke, the other end of the slide plate 13 will abut against the first limiting groove 6, and one end of the first spring 11 is fixedly connected to the slide plate 13, and the other end is fixedly connected to the side wall of the telescopic groove 10. The purpose of such a setting is that when the buckle piece 3 is installed, the first spring 11 is fixedly connected to the side wall of the telescopic groove 10. Under the action of the elastic force of the spring 11, the slide plate 13 is fitted with the fixing plate 27, and then the buckle piece 3 is inserted into the interior of the keel 1 as a whole. When the fixing plate 27 and the slide groove 4 are in the same plane, a force is provided for the slide plate 13 to slide in the direction away from the telescopic slot 10, so that the slide plate 13 slides toward the outside of the telescopic slot 10 and accumulates force on the first spring 11. When the buckle piece 3 needs to be removed, the force on the slide plate 13 is cancelled. At this time, the elastic force of the first spring 11 is released, thereby driving the slide plate 13 to slide toward the inside of the telescopic slot 10, so that the slide plate 13 is pulled out of the slide groove 4 to release the connection between the buckle piece 3 and the keel 1. At this time, the buckle piece 3 can be directly removed.

[0041] Preferably, a driving block 12 is slidably provided on the fixed plate 27, and the slide plate 13 is located on the movement stroke of the driving block 12. Specifically, the cross section of the driving block 12 is T-shaped as a whole, and a first movable groove 14 is provided at the connection position between the fixed plate 27 and the plug-in portion 302, and the driving block 12 can slide along the first movable groove 14. A wedge-shaped surface is provided on the end of the slide plate 13 close to the driving block 12, and the two ends of the driving block 12 are respectively in contact with the wedge-shaped surfaces of the two slide plates 13, and a pull ring 15 is fixedly connected to the surface of the driving block 12 away from the plug-in portion 302. The effect of such a setting is that, in a natural state, the elastic force of the first spring 11 makes the slide plate 13 located close to the end of the driving block 12, and at this time, the two ends of the driving block 12 are respectively in contact with the wedge-shaped surfaces of the two slide plates 13, and under the elastic force of the first spring 11 Under the action, the driving block 12 is limited in this position. When installing the buckle piece 3, the sliding part 301 and the slide groove 4 are placed in the same plane. At this time, the driving block 12 is pressed, so that the two slides 13 slide synchronously to both sides, so that the slide 13 is inserted into the slide groove 4, and under the action of the friction force between the slide 13 and the driving block 12, the driving block 12 can be flexibly limited in this position. When the buckle piece 3 needs to be removed, the pull ring 15 is pulled to make the driving block 12 slide in the direction away from the first active groove 14. At this time, the elastic force of the first spring 11 is released, so that the slide 13 is pulled out of the slide groove 4, so that the buckle piece 3 can be directly removed.

[0042] Furthermore, the slide plate 13 is provided with a second limiting portion 16, and the inner wall of the slide groove 4 is provided with a second limiting groove 17 adapted to the second limiting portion 16, and the second limiting portion 16 has a first position plugged into the second limiting groove 17 and a second position away from the second limiting groove 17; and also includes a power component for driving the second limiting portion 16 to switch between the first position and the second position. Specifically, the second limiting portion 16 is close to the end of the slide plate 13, and a second movable groove 18 is provided inside the slide plate 13, and the second limiting portion 16 is slidably arranged in the second movable groove 18. When the second limiting portion 16 is in the first position, that is, a part of the second limiting portion 16 is located outside the second movable groove 18, and when the second limiting portion 16 is in the second position, that is, the second limiting portion 16 is completely placed in the second movable groove 18. The power component can be an existing reciprocating drive component such as an electric push rod. The effect of such a setting is that when the slide plate 13 is inserted into the slide groove 4, the second limiting portion 16 is in the second position. , to avoid the second limiting portion 16 from interfering with the side wall of the slide groove 4. After the slide plate 13 is inserted into the slide groove 4, the second limiting portion 16 is controlled by the power component to switch from the second position to the first position, so that the second limiting portion 16 is inserted into the second limiting groove 17 to achieve the effect of strengthening the keel 1. When the buckle piece 3 needs to be removed, the second limiting portion 16 is controlled by the power component to switch from the first position to the second position, and then the driving block 12 is controlled to slide in the direction away from the first active groove 14. At this time, the slide plate 13 is automatically reset under the action of the first spring 11, so that the buckle piece 3 can be directly removed.

[0043] As another embodiment of the present invention, the power assembly includes a transmission rod 19, a second spring 20 is arranged on the second limiting portion 16, the transmission rod 19 is located on the movement stroke of the driving block 12, and the second limiting portion 16 is located on the movement stroke of the transmission rod 19. Specifically, the transmission rod 19 is also slidably arranged inside the second movable groove 18, and one end of the transmission rod 19 away from the second limiting portion 16 protrudes to the outside of the slide 13, and a wedge-shaped surface is arranged on the end, and a groove is arranged on the end of the second limiting portion 16 close to the transmission rod 19, and a wedge-shaped surface is arranged inside the groove. For a single slide 13, there are two second limiting portions 16, and the two ends of the second spring 20 are respectively fixed to the two second limiting portions 16. The effect of such a setting is that, in a natural state, the second limiting portion 16 is in the second position under the action of the elastic force of the second spring 20. When the driving block 12 drives the slide 13 to be inserted into the slide groove 4, it continues to press the driving block 12, so that the end of the driving block 12 and the transmission rod 13 are aligned. The wedge-shaped surface of 19 abuts against the transmission rod 19, which will push the transmission rod 19 to slide in the direction of the second limiting portion 16. Under the action of the abutment between the transmission rod 19 and the wedge-shaped surface on the second limiting portion 16, the second limiting portion 16 will be pushed toward the outside of the second movable groove 18, so that the second limiting portion 16 is passively switched from the second position to the first position, and the second spring 20 is charged. When the buckle piece 3 needs to be removed, the pull ring 15 controls the driving block 12 to slide in the direction away from the first movable groove 14, and the elastic force of the second spring 20 is released, so that the second limiting portion 16 is passively switched from the first position to the second position, thereby realizing the passive switching of the second limiting portion 16 between the first position and the second position.

[0044] Furthermore, a receiving groove 21 is provided on the slide plate 13 , an elastic sheet 22 is provided on the side wall of the receiving groove 21 , a clamping portion 23 is provided on the inner wall of the limiting groove, and the clamping portion 23 is located on the movement stroke of the elastic sheet 22 . Specifically, the receiving groove 21 is opened on the side of the slide plate 13, and the elastic sheet 22 is a hard metal structure as a whole. The position where it is connected to the receiving groove 21 is made of elastic material, and the receiving groove 21 is provided with a limit structure such as a bump to limit the excessive rotation of the receiving groove 21. The size of the receiving groove 21 is larger than the size of the elastic sheet 22, so that the elastic sheet 22 can completely enter the receiving groove 21. One end of the elastic sheet 22 is fixed to the side wall of the receiving groove 21, and the other end protrudes to the outside of the receiving groove 21 under the elastic force of the elastic material and abuts against the limit structure. The clamping portion 23 is a plurality of tooth structures arranged on the inner wall of the slide groove 4, and the cross-section of the tooth is a right triangle. The purpose of such a setting is that after the sound-absorbing board body 2 is initially fixed under the connection between the connecting portion 8 and the connecting groove 9, the buckle sheet 3 is installed on the keel 1, and then the buckle sheet 3 is pushed toward the direction of the clamping groove 7, so that When the plug-in portion 302 is inserted into the card slot 7, during the pushing process, the inclined surface of the elastic sheet 22 will abut against the inclined surface of the teeth, so that the elastic sheet 22 rotates toward the direction of the accommodating groove 21 and is stored in the accommodating groove 21 to achieve avoidance. After the inclined surface of the elastic sheet 22 abuts against the inclined surface of the teeth, the elastic force of the elastic sheet 22 is released, so that the elastic sheet 22 automatically resets. At this time, the plane of the elastic sheet 22 abuts against the plane of the teeth of the clamping portion 23, so that the elastic sheet 22 cannot slide in the opposite direction, thereby achieving the anti-reverse effect of the buckle sheet 3, so that the plug-in portion 302 can be stably plugged into the card slot 7 and will not be detached, thereby improving the stability of the sound-absorbing board body 2 during installation. When the slide plate 13 is pulled out of the slide groove 4, it will drive the elastic sheet 22 to move synchronously, so that the elastic sheet 22 is pulled out from the clamping portion 23, so as to achieve the synchronous unlocking of the elastic sheet 22.

[0045] Preferably, an extension portion 24 is provided on the second limiting groove 17, and the extension portion 24 is located on the movement stroke of the buckle piece 3. Specifically, the extension portion 24, i.e., the lower surface of the slide groove 4, protrudes into the interior of the keel 1, and the distance between the two extension portions 24 is smaller than the width of the sliding portion 301. The effect of such a setting is that when the buckle piece 3 is inserted into the interior of the keel 1, the extension portion 24 will play a positioning role, which will make the sliding portion 301 abut against the extension portion 24, so that it cannot move further. At this time, the slide plate 13 and the slide groove 4 are exactly on the same plane, and the slide plate 13 can be inserted into the slide groove 4 by directly pressing the driving block 12.

[0046] Furthermore, a locking portion 25 is provided on the driving block 12, and a locking groove 26 adapted to the locking portion 25 is provided on the transmission rod 19, and the locking groove 26 is located on the movement stroke of the locking portion 25. Specifically, the locking portion 25 is a protruding structure provided on both side ends of the driving block 12, and the locking groove 26 is provided on the end surface of the transmission rod 19 close to the driving block 12, and the size of the locking portion 25 is adapted to the size of the locking groove 26, and the two side walls of the locking groove 26 are inclined surfaces, and the insertion distance between the locking portion 25 and the locking groove 26 is less than the length of the second locking portion 25 outside the second movable groove 18 when the second locking portion 25 is in the first position. The effect of such a setting is that when the driving block 12 abuts against the transmission rod 19 to switch the second limiting portion 16 from the second position to the first position, the driving block 12 continues to move, and when the locking portion 25 overlaps with the locking groove 26 After that, the elastic force of the second spring 20 will be partially released, so that the transmission rod 19 drives the locking groove 26 to move synchronously toward the locking part 25, and the locking part 25 is plugged into the locking groove 26. That is, during the rebound of the transmission rod 19 at this time, the locking effect of the drive block 12 is achieved. When it is necessary to unlock the locking part 25 and the locking groove 26, the drive block 12 is controlled by the pull ring 15 to move in the direction away from the first movable groove 14, which will make the locking part 25 abut against the inclined surface of the locking groove 26. When the pulling force is greater than the elastic force of the second spring 20 and the friction force between the transmission rod 19 and the drive block 12, the drive block 12 can be pulled out to achieve unlocking.

[0047] The above description is only by way of illustration of certain exemplary embodiments of the present invention. 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 connection structure of a sound-absorbing board, comprising a keel fixed to a wall to be installed, wherein a sound-absorbing board body is arranged on the keel, characterized in that: The keel is fitted with the sound absorbing board body, and a buckle piece is slidably provided on the keel; The buckle piece includes a sliding portion and an inserting portion, the inserting portion is inserted into the sound absorbing board body, the sliding portion is located inside the keel, a sliding groove is provided on the inner side wall of the keel, and the sliding portion is slidably connected to the sliding groove.

2. The connection structure of the sound absorbing board according to claim 1, characterized in that: The sliding portion is provided with a first limiting portion, the inner wall of the sliding groove is provided with a first limiting groove, and the first limiting portion is slidably connected with the first limiting groove.

3. The connection structure of the sound absorbing panel according to claim 1, characterized in that: The sound absorbing board body is provided with a sound absorbing felt, and the sound absorbing board body is attached to the keel through the sound absorbing felt.

4. The connection structure of the sound absorbing board according to claim 1, characterized in that: The sound absorbing board body is provided with a connecting portion and a connecting groove, wherein the connecting portion on one of the sound absorbing board bodies is plugged into the connecting groove on the adjacent sound absorbing board body.

5. The connection structure of the sound absorbing panel according to claim 1, characterized in that: The sliding connection portion includes a fixed plate and a sliding plate slidably arranged on the fixed plate, and a first spring is arranged between the sliding plate and the fixed plate.

6. The connection structure of the sound absorbing board according to claim 5, characterized in that: A driving block is slidably arranged on the fixed plate, and the sliding plate is located on the movement stroke of the driving block.

7. The connection structure of the sound absorbing panels according to claim 6, characterized in that: The slide plate is provided with a second limiting portion, the inner wall of the slide groove is provided with a second limiting groove matched with the second limiting portion, and the second limiting portion has a first position plugged into the second limiting groove and a second position away from the second limiting groove; It also includes a power assembly for driving the second limiting portion to switch between the first position and the second position.

8. The connection structure of the sound absorbing panels according to claim 7, characterized in that: The power assembly includes a transmission rod, a second spring is arranged between the second limiting portion and the slide plate, the transmission rod is located on the movement stroke of the driving block, and the second limiting portion is located on the movement stroke of the transmission rod.

9. The connection structure of the sound absorbing panels according to claim 7, characterized in that: The slide plate is provided with a receiving groove, the side wall of the receiving groove is provided with an elastic sheet, the inner wall of the limiting groove is provided with a clamping portion, and the clamping portion is located on the movement stroke of the elastic sheet.

10. The connection structure of the sound absorbing panels according to claim 7, characterized in that: The second limiting groove is provided with an extension portion, and the extension portion is located on the movement stroke of the buckle piece.

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