CN210177793U - Novel acoustic wall building block - Google Patents

Abstract

The utility model relates to the technical field of building block accessories, in particular to a novel acoustic wall block, which reduces the amount of gypsum entering into a sound absorption cavity by arranging a protective device outside a sound absorption groove of the novel acoustic wall block, thereby reducing the waste of plastering gypsum, and simultaneously reducing the amount of plastering gypsum adhered on sound absorption asbestos, thereby reducing the probability that the sound absorption effect of the sound absorption asbestos is adversely affected; the sound insulation cavity and the sound absorption cavity are arranged in the peripheral wall in parallel and are separated by the transverse interlayer, and the sound absorption cavity is provided with a sound absorption groove; the sound absorption groove comprises three groups of communicating grooves, and the sound absorption cavity comprises three groups of mounting cavities.

Description

Novel acoustic wall building block

Technical Field

The utility model relates to a building block auxiliary device's technical field especially relates to a novel acoustics wall building block.

Background

As is well known, noise pollution is harmful to people, animals, instruments and buildings, the degree of the harm is mainly determined by the frequency, strength and exposure time of noise, and along with the progress of society and the continuous improvement of living standard of people, people desire to obtain good working and living environment, so that it is necessary to take powerful measures to reduce the noise pollution, and in order to effectively inhibit the propagation of noise, sound insulation and absorption measures are usually adopted in the noise control engineering, and the patent document with the prior patent number of CN96221028.5 discloses a novel wall building block which has the functions of sound insulation and absorption, is simple in mechanism, convenient and firm to construct, and widely used in the field of building engineering for greatly reducing the noise pollution of living places of people; the existing novel acoustic wall building block comprises a peripheral wall, a sound insulation cavity, a sound absorption cavity, a transverse interlayer, a longitudinal interlayer, a sound absorption groove, a sound insulation steel plate and sound absorption asbestos, wherein the sound insulation cavity and the sound absorption cavity are arranged in the peripheral wall in parallel and are separated by the transverse interlayer; when the existing novel acoustic wall building block is used, after the existing novel acoustic wall building block is transported to a building site, workers can build the novel acoustic wall building block into a wall by using mortar as a bonding agent; present novel acoustics wall block is using to discover, when the workman whitewashes the gypsum on the wall body built by laying bricks or stones by novel acoustics wall block, whitewashes the gypsum and gets into the probability in the sound absorption cavity of novel acoustics wall block higher through the sound absorption groove, then caused the waste of whitewashing gypsum this moment, simultaneously when more whitewashes the gypsum glue on the sound absorption asbestos after, the sound absorption asbestos sound absorption effect receives the probability of harmful effects higher to lead to the practicality relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a set up the protector through the outside at the sound absorption groove of novel acoustics wall block and reduce the volume that gets into to the gypsum in the sound absorption cavity, consequently reduced the waste of plastering gypsum, reduced the plastering gypsum's of adhesion on the sound absorption asbestos volume simultaneously, therefore reduced the probability that sound absorption asbestos's sound absorption effect received harmful effects to the novel acoustics wall block of reinforcing practicality.

The utility model discloses a novel acoustic wall building block, including perisporium, sound insulation cavity, sound absorption cavity, horizontal interlayer, vertical interlayer, sound absorption groove, sound insulation steel sheet and sound absorption asbestos, sound insulation cavity and sound absorption cavity are established in the perisporium parallelly, and are separated by horizontal interlayer, sound absorption cavity opens sound absorption groove, is equipped with the sound insulation steel sheet in horizontal interlayer, is filled with the sound absorption asbestos in the sound absorption cavity; the sound absorption cavity comprises three groups of installation cavities, the left ends of the three groups of communication grooves are respectively communicated with the right ends of the three groups of installation cavities, the upper side and the lower side of the right end of the peripheral wall are respectively provided with an upper clamping groove and a lower clamping groove, the bottom end of the upper clamping groove and the top end of the lower clamping groove are respectively communicated with the right side of the top end of the upper communication groove and the right side of the bottom end of the lower communication groove, the left ends of the upper clamping groove and the lower clamping groove are respectively communicated with the right ends of the upper installation cavity and the lower installation cavity and are respectively provided with an upper insertion hole and a lower insertion hole, and the right ends of the upper fastening threaded rod and the lower fastening threaded rod respectively penetrate through the upper insertion hole and the lower insertion hole from the upper installation cavity and the lower installation cavity to respectively extend into the upper clamping groove and the lower clamping groove, the right ends of the upper fastening threaded rod and the lower fastening threaded rod are respectively connected with the middle parts of the left ends of the upper fixing plate and the lower fixing plate, the two groups of fastening nuts are respectively screwed with the left parts of the upper fastening threaded rod and the lower fastening threaded rod, the outer sides of the right ends of the upper fixing plate and the lower fixing plate are respectively provided with two groups of upper positioning threaded holes and two groups of lower positioning threaded holes, two groups of upper access holes and two groups of lower access holes are respectively arranged on the outer sides of the right ends of the two groups of extrusion plates in a penetrating way, the left ends of the two groups of upper screws and the left ends of the two groups of lower screws respectively penetrate through the two groups of upper access holes and the two groups of lower access holes from the right sides of the two groups of extrusion plates, then the grid cloth is continuously and respectively inserted into the two groups of upper positioning threaded holes and the two groups of lower positioning threaded holes in a screw way, the top and the bottom of the right end of the grid cloth are respectively clung to the inner sides of the left ends of the two groups of extrusion plates, the top and the bottom of the left end of the mesh cloth are respectively clung to the inner sides of the right ends of the upper fixing plate and the lower fixing plate.

The utility model discloses a novel acoustics wall building block, the right-hand member bottom intercommunication of downside installation cavity is provided with U type adjustment tank, the top of U type adjustment tank and the bottom intercommunication of patchhole down, the right-hand member bottom region of perisporium is provided with the shifting chute, the top of shifting chute and the bottom intercommunication of draw-in groove down.

The utility model discloses a novel acoustics wall building block, the left end inboard of two sets of stripper plates all is provided with the protruding piece of multiunit.

The utility model discloses a novel acoustics wall building block still includes two sets of protection gasket, two sets of protection gasket respectively with last fastening threaded rod and fastening threaded rod activity suit down, the left end of two sets of protection gasket is hugged closely with two sets of fastening nut's right-hand member respectively.

The utility model discloses a novel acoustics wall building block, the right-hand member inboard of upper fixed plate and bottom plate all is provided with the multiunit tooth.

The utility model discloses a novel acoustics wall building block still includes bracing piece, telescopic link, swivel ring and extrusion piece, the bottom of bracing piece is provided with the thread groove, the outer circumference lateral wall of telescopic link is provided with the external screw thread, insert to the thread groove from the downside spiral shell dress of bracing piece on the top of telescopic link, the swivel ring is with the regional fixed suit in bottom of telescopic link, the top of extrusion piece is connected with the bottom of telescopic link.

The utility model discloses a novel acoustics wall building block, the circumference lateral wall right side that stretches into the hole and two sets of lower hole on two sets of stripper plates feeds through respectively and is provided with two sets of upper fixing grooves and two sets of lower fixing grooves, the right-hand member of screw and two sets of lower screws is provided with four group's screw caps respectively on two sets of upper screws, and two sets of four group's screw caps of screw and two sets of lower screws clamp with two sets of upper fixing grooves and two sets of lower fixing grooves respectively.

The utility model discloses a novel acoustics wall building block, the top and the bottom of perisporium are provided with two sets of recesses respectively, the inner front side of two sets of recesses communicates respectively and is provided with two sets of handheld grooves.

Compared with the prior art, the beneficial effects of the utility model are that: after the peripheral wall of the novel acoustic wall building block is processed, firstly, two groups of fixing plates are fixed on the peripheral wall through two groups of fastening threaded rods and two groups of fastening nuts respectively, then two ends of the grid cloth are placed between two groups of fastening plates and two groups of fixing plates respectively, and the two groups of fastening plates are clamped on the two groups of fixing plates through two groups of upper screws and two groups of lower screws to form the grid cloth, at the moment, the grid cloth edge is simultaneously blocked outside three groups of sound absorption grooves, when gypsum is plastered, the grid cloth has certain supporting force for the plastering gypsum, at the moment, the quantity of plastering gypsum entering the sound absorption cavity through the three groups of sound absorption grooves is greatly reduced, so that the quantity of gypsum entering the sound absorption cavity is reduced by arranging a protective device outside the sound absorption grooves of the novel acoustic wall building block, the waste of plastering gypsum is reduced, and the quantity of plastering gypsum adhered on the sound absorption is reduced at the same time, therefore, the probability that the sound absorption effect of the sound absorption asbestos is adversely affected is reduced, and the practicability is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of a partially enlarged structure of a;

FIG. 3 is a schematic view of the connection structure of two sets of squeezing plates and a mesh cloth according to the present invention;

FIG. 4 is a schematic view of the connection structure of two sets of lower positioning threaded holes and a lower fixing plate of the present invention;

FIG. 5 is a schematic view of the connection structure of the groove and the hand-held groove of the present invention;

FIG. 6 is a schematic view of the connection structure of the extrusion plate and the plurality of sets of bumps;

fig. 7 is a schematic view of a connection structure of the lower insertion hole and the lower clip groove of the present invention;

in the drawings, the reference numbers: 1. a peripheral wall; 2. a sound insulation cavity; 3. a transverse barrier layer; 4. a longitudinal barrier layer; 5. a sound insulation steel plate; 6. sound absorbing asbestos; 7. two groups of extrusion plates; 8. two groups of upper screws; 9. An upper fixing plate; 10. a lower fixing plate; 11. fastening the threaded rod; 12. a lower fastening threaded rod; 13. mesh cloth; 14. two sets of fastening nuts; 15. three groups of communicating grooves; 16. three groups of mounting cavities; 17. a lower clamping groove; 18. a lower insertion hole; 19. two groups of lower positioning threaded holes; 20. two groups of lower access holes; 21. a U-shaped adjusting groove; 22. a moving groove; 23. a plurality of groups of convex blocks; 24. two sets of protective pads; 25. a plurality of sets of teeth; 26. a support bar; 27. a telescopic rod; 28. a rotating ring; 29. extruding the block; 30. two groups of lower fixing grooves; 31. two groups of grooves; 32. two sets of hand-held grooves.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 7, the novel acoustic wall block of the present invention comprises a circumferential wall 1, a sound insulation cavity 2, a sound absorption cavity, a transverse interlayer 3, a longitudinal interlayer 4, a sound absorption groove, a sound insulation steel plate 5 and a sound absorption asbestos 6, wherein the sound insulation cavity 2 and the sound absorption cavity are arranged in the circumferential wall 1 in parallel and are separated by the transverse interlayer 3, the sound absorption cavity is provided with the sound absorption groove, the sound insulation steel plate 5 is arranged in the transverse interlayer 3, and the sound absorption cavity is filled with the sound absorption asbestos 6; the sound absorption cavity comprises three groups of communication grooves 15, the sound absorption cavity comprises three groups of mounting cavities 16, the left ends of the three groups of communication grooves 15 are respectively communicated with the right ends of the three groups of mounting cavities 16, the upper side and the lower side of the right end of the peripheral wall 1 are respectively provided with an upper clamping groove and a lower clamping groove 17, the bottom end of the upper clamping groove and the top end of the lower clamping groove 17 are respectively communicated with the right side of the top end of the upper communication groove and the right side of the bottom end of the lower communication groove, the left ends of the upper clamping groove and the lower clamping groove 17 are respectively communicated with the right ends of the upper mounting cavity and the lower mounting cavity and are respectively provided with an upper insertion hole and a lower insertion hole 18, the right ends of the upper fastening threaded rod 11 and the lower fastening threaded rod 12 respectively penetrate through the upper insertion hole and the lower insertion hole 18 from the upper mounting cavity and the lower mounting cavity to respectively extend into the upper clamping groove and the lower clamping groove 17, the right ends of an upper fastening threaded rod 11 and a lower fastening threaded rod 12 are respectively connected with the middle parts of the left ends of an upper fixing plate 9 and a lower fixing plate 10, two groups of fastening nuts 14 are respectively screwed with the left parts of the upper fastening threaded rod 11 and the lower fastening threaded rod 12, two groups of upper positioning threaded holes and two groups of lower positioning threaded holes 19 are respectively arranged on the outer sides of the right ends of the upper fixing plate 9 and the lower fixing plate 10, two groups of upper extension holes and two groups of lower extension holes 20 are respectively arranged on the outer sides of the right ends of two groups of extrusion plates 7 in a penetrating manner, the left ends of two groups of upper screws 8 and the left ends of two groups of lower screws respectively penetrate through the two groups of upper extension holes and, then, the net cloth is continuously and respectively inserted into the two groups of upper positioning threaded holes and the two groups of lower positioning threaded holes 19 in a screw mode, the top and the bottom of the right end of the net cloth are respectively clung to the inner sides of the left ends of the two groups of extrusion plates 7, and the top and the bottom of the left end of the net cloth 13 are respectively clung to the inner sides of the right ends of the upper fixing plate 9 and the lower fixing plate 10; after the peripheral wall of the novel acoustic wall building block is processed, firstly, two groups of fixing plates are fixed on the peripheral wall through two groups of fastening threaded rods and two groups of fastening nuts respectively, then two ends of the grid cloth are placed between two groups of fastening plates and two groups of fixing plates respectively, and the two groups of fastening plates are clamped on the two groups of fixing plates through two groups of upper screws and two groups of lower screws to form the grid cloth, at the moment, the grid cloth edge is simultaneously blocked outside three groups of sound absorption grooves, when gypsum is plastered, the grid cloth has certain supporting force for the plastering gypsum, at the moment, the quantity of plastering gypsum entering the sound absorption cavity through the three groups of sound absorption grooves is greatly reduced, so that the quantity of gypsum entering the sound absorption cavity is reduced by arranging a protective device outside the sound absorption grooves of the novel acoustic wall building block, the waste of plastering gypsum is reduced, and the quantity of plastering gypsum adhered on the sound absorption is reduced at the same time, therefore, the probability that the sound absorption effect of the sound absorption asbestos is adversely affected is reduced, and the practicability is enhanced.

The utility model discloses a novel acoustic wall block, the bottom of the right end of the lower side installation cavity is communicated and provided with a U-shaped adjusting groove 21, the top end of the U-shaped adjusting groove 21 is communicated with the bottom end of the lower insertion hole 18, the bottom area of the right end of the peripheral wall 1 is provided with a moving groove 22, and the top end of the moving groove 22 is communicated with the bottom end of the lower clamping groove 17; after with net cloth chucking between two sets of stripper plates and two sets of fixed plates, at this moment with the fastening nut of downside loosen soon on downside fastening threaded rod, then alright make fastening threaded rod down in the patchhole under with fastening threaded rod slide to U type adjustment tank, fastening threaded rod drives the bottom plate in step down simultaneously and slides to the shifting chute in the draw-in groove down, when the bottom plate moves down, the bottom plate draws net cloth to the state of tightly stretching tightly with the stripper plate cooperation down, then with the fastening nut of downside screw on fastening threaded rod down can, through the quality that can improve the whitewash gypsum of wall body with the state that will make net cloth keep tight, thereby the practicality has been strengthened.

In the novel acoustic wall building block of the utility model, the inner sides of the left ends of the two groups of extrusion plates 7 are provided with a plurality of groups of convex blocks 23; the multiple groups of convex blocks on the inner side of the extrusion plate can be clamped in meshes of the grid cloth, so that the probability that the grid cloth is separated between the two groups of extrusion plates and the two groups of fixing plates is reduced, and the practicability is enhanced.

The novel acoustic wall building block of the utility model also comprises two groups of protective gaskets 24, wherein the two groups of protective gaskets 24 are movably sleeved with the upper fastening threaded rod 11 and the lower fastening threaded rod 12 respectively, and the left ends of the two groups of protective gaskets 24 are respectively clung to the right ends of the two groups of fastening nuts 14; the two groups of protective gaskets play a role in protecting the novel acoustic wall building block, the probability that the peripheral wall is damaged by the two groups of fastening nuts in the screwing process is reduced, and therefore reliability is enhanced.

In the novel acoustic wall block of the utility model, the inner sides of the right ends of the upper fixing plate 9 and the lower fixing plate 10 are respectively provided with a plurality of sets of teeth 25; through all setting up multiunit tooth on two sets of fixed plates, increased the roughness of two sets of fixed plates and net cloth contact surface, consequently further reduced the probability that net cloth breaks away from between two sets of fixed plates and two sets of stripper plates to the practicality has been strengthened.

The utility model discloses a novel acoustics wall building block still includes bracing piece 26, telescopic link 27, swivel ring 28 and extrusion piece 29, and the bottom of bracing piece 26 is provided with the thread groove, and the outer circumference lateral wall of telescopic link 27 is provided with the external screw thread, and the top of telescopic link 27 is inserted into the thread groove from the downside spiral shell dress of bracing piece 26, and swivel ring 28 and the fixed suit in bottom region of telescopic link 27, and the top of extrusion piece 29 is connected with the bottom of telescopic link 27; adjust net cloth to the in-process of tight state, can adjust the swivel becket and make the swivel becket drive the telescopic link at the thread groove internal rotation of bracing piece, make the telescopic link extend in the bracing piece until the telescopic link passes through the top of extrusion piece top fixed block under, then continue to adjust the swivel becket this moment the telescopic link continues to stretch out the bracing piece, the telescopic link has just played the impetus to the bottom plate this moment, then bottom plate and bottom stripper plate then drag simultaneously net cloth, treat net cloth and adjust to tight state after, the stall swivel becket can, treat after the bottom plate location finishes, at this moment can the antiport swivel becket make the telescopic link reset, then take out the regulation work that carries out next set of building block with it in the building block, thereby the practicality has been strengthened.

In the novel acoustic wall block of the utility model, the right sides of the circumferential side walls of two groups of upper extension holes and two groups of lower extension holes 20 of two groups of extrusion plates 7 are respectively communicated with two groups of upper fixing grooves and two groups of lower fixing grooves 30, the right ends of two groups of upper screws 8 and two groups of lower screws are respectively provided with four groups of screw caps, and the four groups of screw caps of two groups of upper screws 8 and two groups of lower screws are respectively clamped with the two groups of upper fixing grooves and the two groups of lower fixing grooves 30; the screw cap of the screw is clamped into the corresponding fixing groove, so that the thickness of the part outside the peripheral wall is reduced, the influence of the novel acoustic wall building block on the wall plastering gypsum work is reduced, and the practicability is enhanced.

The top end and the bottom end of the peripheral wall 1 of the novel acoustic wall block of the utility model are respectively provided with two groups of grooves 31, and the front sides of the inner ends of the two groups of grooves 31 are respectively communicated with two groups of handheld grooves 32; when the building block is held by a single hand of a worker, the worker can more reliably contact the building block by clamping the fingers into the corresponding grooves, so that the practicability is enhanced.

The utility model discloses a novel acoustic wall block, it is at work, after the perisporium processing of novel acoustic wall block finishes, first fix two sets of fixed plates on the perisporium through two sets of fastening threaded rods and two sets of fastening nuts respectively and finish, then put the both ends of net cloth between two sets of mounting plates and two sets of fixed plates respectively, and block net cloth on two sets of fixed plates through two sets of upper screws and two sets of lower screws with two sets of mounting plates, after blocking net cloth between two sets of stripper plates and two sets of fixed plates, at this moment, loosen the fastening nut of downside on downside fastening threaded rod, adjust the rotating ring simultaneously and make the rotating ring drive the telescopic link to rotate in the thread groove of bracing piece, make the telescopic link extend in the bracing piece until the telescopic link pushes up the top of lower fixed block through the stripper plate, then continue to adjust the rotating ring and continue to stretch out the bracing piece, the telescopic link has just played the impetus to the bottom plate this moment, when the bottom plate moved down, the bottom plate pulled the net cloth to tight state with the cooperation of stripper plate down, then with the downside fastening nut screw on fastening threaded rod down can, at this moment can the antiport swivel becket messenger telescopic link reset, then take out the regulation work who carries out next a set of building block with it in the building block, the net selvedge just kept off the outside in three acoustic grooves of group simultaneously this moment, when whitewashing the gypsum, net cloth has certain holding power to whitewashing the gypsum, this moment very big reduction comes to get into the volume of whitewashing gypsum to the acoustic cavity internal through three acoustic grooves of group, then after transporting current novel acoustics wall body building block to the building site, the workman builds a wall body with novel acoustics wall body building block to use the mortar as the adhesive with the wall body by laying bricks or stones.

The terms "front", "rear", "left", "right" and the like as used herein are for illustrative purposes only.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A novel acoustic wall building block comprises a peripheral wall (1), a sound insulation cavity (2), a sound absorption cavity, a transverse interlayer (3), a longitudinal interlayer (4), a sound absorption groove, a sound insulation steel plate (5) and sound absorption asbestos (6), wherein the sound insulation cavity (2) and the sound absorption cavity are arranged in the peripheral wall (1) in parallel and are separated by the transverse interlayer (3), the sound absorption cavity is provided with the sound absorption groove, the sound insulation steel plate (5) is arranged in the transverse interlayer (3), and the sound absorption asbestos (6) is filled in the sound absorption cavity; it is characterized by also comprising two groups of extrusion plates (7), two groups of upper screws (8), two groups of lower screws, an upper fixing plate (9), a lower fixing plate (10), an upper fastening threaded rod (11), a lower fastening threaded rod (12), grid cloth (13) and two groups of fastening nuts (14), wherein the sound absorption groove comprises three groups of communication grooves (15), the sound absorption cavity comprises three groups of mounting cavities (16), the left ends of the three groups of communication grooves (15) are respectively communicated with the right ends of the three groups of mounting cavities (16), the upper side and the lower side of the right end of the peripheral wall (1) are respectively provided with an upper clamping groove and a lower clamping groove (17), the bottom end of the upper clamping groove and the top end of the lower clamping groove (17) are respectively communicated with the right side of the top end of the upper side communication groove and the right side of the bottom end of the lower side communication groove, the left ends of the upper clamping groove and the lower clamping groove (17) are respectively, go up the right-hand member of fastening threaded rod (11) and fastening threaded rod (12) down and pass last patchhole and lower patchhole (18) respectively from upside installation cavity and downside installation cavity and stretch into supreme draw-in groove and lower draw-in groove (17) respectively in, the right-hand member of going up fastening threaded rod (11) and fastening threaded rod (12) down is connected with the left end middle part of upper fixed plate (9) and lower fixed plate (10) respectively, two sets of fastening nut (14) respectively with the left part spiral shell dress of last fastening threaded rod (11) and fastening threaded rod (12) down, the right-hand member outside of upper fixed plate (9) and lower fixed plate (10) is provided with two sets of last positioning screw hole and two sets of lower positioning screw hole (19) respectively, the right-hand member outside of two sets of stripper plates (7) is run through respectively and is provided with two sets of last access hole and two sets of lower access hole (20), the left end of two sets of going up screw (8) and two sets of lower screw respectively The grid cloth pressing device comprises an inserting hole and two groups of lower inserting holes (20), and then the grid cloth pressing device is continuously inserted into two groups of upper positioning threaded holes and two groups of lower positioning threaded holes (19) in a screwed mode, the top and the bottom of the right end of the grid cloth are tightly attached to the inner sides of the left ends of two groups of squeezing plates (7), and the top and the bottom of the left end of the grid cloth (13) are tightly attached to the inner sides of the right ends of an upper fixing plate (9) and a lower fixing plate (10).

2. A novel acoustic wall block as claimed in claim 1, wherein the bottom of the right end of the lower side installation cavity is provided with a U-shaped adjusting groove (21), the top end of the U-shaped adjusting groove (21) is communicated with the bottom end of the lower insertion hole (18), the bottom area of the right end of the peripheral wall (1) is provided with a moving groove (22), and the top end of the moving groove (22) is communicated with the bottom end of the lower clamping groove (17).

3. A new acoustic wall block as defined in claim 2, characterised in that the left end inside of both sets of squeeze boards (7) are provided with sets of bulges (23).

4. A novel acoustic wall block as claimed in claim 3, further comprising two sets of protective washers (24), wherein said two sets of protective washers (24) are movably sleeved with the upper fastening threaded rod (11) and the lower fastening threaded rod (12), respectively, and the left ends of said two sets of protective washers (24) are closely attached to the right ends of said two sets of fastening nuts (14), respectively.

5. A novel acoustic wall block as claimed in claim 4, characterized in that the inner sides of the right ends of the upper fixing plate (9) and the lower fixing plate (10) are provided with sets of teeth (25).

6. A novel acoustic wall block as claimed in claim 5, further comprising a support rod (26), a telescopic rod (27), a rotary ring (28) and an extrusion block (29), wherein a thread groove is formed at the bottom end of the support rod (26), an external thread is formed on the outer circumferential side wall of the telescopic rod (27), the top end of the telescopic rod (27) is inserted into the thread groove from the lower side of the support rod (26), the rotary ring (28) is fixedly sleeved with the bottom region of the telescopic rod (27), and the top end of the extrusion block (29) is connected with the bottom end of the telescopic rod (27).

7. The novel acoustic wall block according to claim 6, wherein two sets of upper and lower fixing grooves (30) are respectively formed on the right sides of the circumferential sidewalls of the two sets of upper and lower insertion holes (20) of the two sets of pressing plates (7), four sets of screw caps are respectively formed on the right ends of the two sets of upper and lower screws (8, 8), and the four sets of screw caps of the two sets of upper and lower screws are respectively engaged with the two sets of upper and lower fixing grooves (30).

8. A novel acoustic wall block as claimed in claim 7, characterized in that two sets of grooves (31) are respectively provided at the top and bottom ends of the peripheral wall (1), and two sets of hand-held grooves (32) are respectively provided in communication with the front sides of the inner ends of the two sets of grooves (31).

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