CN211922359U

CN211922359U - Column-hidden metal sound barrier unit plate and column-hidden sound barrier

Info

Publication number: CN211922359U
Application number: CN202020381257.7U
Authority: CN
Inventors: 魏大恒; 杨伦
Original assignee: Beijing Tianqing Tongchuang Environmental Protection Technology Co ltd
Current assignee: Beijing Tianqing Tongchuang Environmental Protection Technology Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-11-13
Anticipated expiration: 2030-03-24

Abstract

The utility model provides a column-hidden metal sound barrier unit plate, which comprises a sound absorption material layer, a sound insulation material layer, an upper support, a lower support, a front panel and a back panel, the sound absorption material layer and the sound insulation material layer are fixed together through the upper support and the lower support, the front panel and the back panel are buckled outside the upper support and the lower support, the two ends formed by combining the front panel and the back panel are provided with inserting convex parts and covering convex parts, the inserting convex part is matched with the groove of the H-shaped upright post, the covering convex part extends to the longitudinal central line of the H-shaped upright post along the outer surface of the H-shaped upright post, so that the covering convex parts of the two unit plates inserted into the grooves at the two sides of the H-shaped upright post can completely cover the outer surface of the H-shaped upright post after being butted, a groove is formed between the inserting protruding portion and the covering protruding portion, and the groove can accommodate wing plates of the H-shaped stand column.

Description

Column-hidden metal sound barrier unit plate and column-hidden sound barrier

Technical Field

The utility model relates to a sound barrier technical field, more specifically relates to hidden column structure's sound barrier and cell board thereof.

Background

The sound barrier is mainly used for sound insulation and noise reduction of highways, expressways, overhead composite roads and other noise sources. The sound insulation method is divided into a reflection type sound barrier for pure sound insulation and a composite type sound barrier for combining sound absorption and sound insulation, and the latter is a more effective sound insulation method. Refers to a wall structure provided beside railways and highways to reduce the influence of driving noise on nearby residents. Sound-insulating walls are also known as sound barriers. The insertion of a facility between the source and the receiver, called a sound barrier, provides a significant additional attenuation of the sound wave propagation, thus attenuating the noise contribution in the area where the receiver is located. The most used types of sound barriers are classified into traffic sound barriers, equipment noise attenuation sound barriers, industrial plant sound barriers, highways and expressways. The sound barrier mainly comprises a steel structure upright post and a sound absorption barrier plate, wherein the upright post is a main stressed member of the sound barrier and is fixed on a road anti-collision wall or an embedded steel plate at the edge of a track through bolts or welding; the sound absorption and insulation board is a main sound insulation and absorption component and is fixed in the H-shaped upright post groove through a high-strength spring clip to form a sound barrier. The design of the sound barrier fully considers the problems of wind load of elevated highways, urban light rails and subways, impact safety of traffic vehicles and all-weather outdoor corrosion prevention. The sound insulation and noise reduction device has the advantages of attractive and elegant appearance, delicate manufacture, convenient transportation and installation, low manufacturing cost and long service life, is particularly suitable for noise prevention of elevated highways and urban light rails and subways, and is an ideal sound insulation and noise reduction facility for modern cities.

Heretofore, the sound barrier is composed of an H-shaped upright and a sound barrier unit plate inserted into the H-shaped upright, the H-shaped upright comprises a web and four wing plates extending outwards from two ends of the web, the web and the two wing plates on two sides of the web are respectively combined to form two longitudinal grooves, and two ends of the sound barrier unit plate are inserted into the longitudinal grooves. In general, four wing plates of the H-shaped upright post are exposed. Chinese patent document CN201220743077 discloses a hidden column type sound barrier, which comprises an H-shaped steel column (1) and a panel (2), wherein a front panel (21) of the panel (2) is arranged on one side of the steel column (1) close to a sound source, and a back panel (22) of the panel (2) is arranged on one side of the H-shaped steel column (1) far away from the sound source, and the hidden column type sound barrier is characterized in that: the mounting surface of the panel (2) is arranged in parallel in a gap formed by the H-shaped steel upright post (1) covered on the front panel (21) and the back panel (22). The utility model provides a picture peg formula sound barrier stand expose influence pleasing to the eye and picture peg formula sound barrier have the technical problem of potential safety hazard, improved the security performance of sound barrier, H shaped steel stand is fixed inseparable with the purlin, and the joggle of metal screen board tongue-and-groove is tight, and is fixed firm, is difficult for droing.

The CN201220743077 patent has the following technical defects:

1. the CN201220743077 patent adopts a front and back panel to be fixed on a steel column, a support system is lacked between the steel column and the front and back panel, a stable stress system cannot be formed, mechanical properties such as wind pressure resistance, wind uncovering resistance and the like are poor, bolts for fixing a single plate are more, purlins need to be added inside, the using amount of self-tapping nails is large, and an internal sound absorption material needs to be installed on site. The whole system needs to be installed in a split mode on site.

2. The CN201220743077 patent uses a plurality of bolts and self-tapping screws, is complex to install on site, has large anti-corrosion workload, cannot overhaul the bolts and has large potential safety hazard.

The statements in the background section are merely prior art as they are known to the inventors and do not, of course, represent prior art in the field.

Disclosure of Invention

Aiming at one or more problems in the prior art, the utility model provides a hidden column type metal sound barrier cell board, which comprises a sound absorption material layer, a sound insulation material layer, an upper support, a lower support, a front panel and a back panel, wherein the sound absorption material layer and the sound insulation material layer are fixed together through the upper support and the lower support, the front panel and the back panel are buckled outside the upper support and the lower support, two end parts formed after the front panel and the back panel are combined are provided with an inserting convex part and a covering convex part, the inserting convex part is matched with a groove of an H-shaped upright post, the covering convex part extends towards the longitudinal central line of the H-shaped upright post along the outer surface of the H-shaped upright post, so that the covering convex parts of two cell boards inserted in the grooves at two sides of the H-shaped upright post can completely cover the outer surface of the H-shaped upright post after being butted, a groove is formed between, the groove can accommodate a wing plate of the H-shaped upright post.

According to an aspect of the utility model, the front panel includes first panel portion, first buckling parts and first buckling parts down, the back panel includes buckling parts and second buckling parts down on second panel portion, the second, buckling parts lock and common lock are outside last support on the second on first, the buckling parts lock is outside the second and common lock supports under outside.

According to one aspect of the present invention, the front plate includes a covering protrusion and a first inserting protrusion symmetrically disposed at two ends, and the covering protrusion and the first inserting protrusion combine to form a first groove capable of accommodating a wing plate of the H-shaped column; the back panel comprises a covering lug boss and a second inserting lug boss which are symmetrically arranged at two ends, and the covering lug boss and the second inserting lug boss are combined to form a second groove capable of accommodating a wing plate of the H-shaped upright post; the second inserting convex part is buckled outside the first inserting convex part to form an inserting convex part of the unit plate.

According to the utility model discloses an aspect, every top of covering the bellying all is equipped with first connecting piece for the connection is inserted and is closed the covering bellying at two cell boards of H type stand both sides recess.

The utility model also provides a hidden column type sound barrier, which comprises a steel frame and the metal sound barrier unit plate inserted in the steel frame; wherein the content of the first and second substances,

the steel frame comprises an H-shaped upright post, the H-shaped upright post comprises a web plate and four wing plates extending outwards from two ends of the web plate, and the web plate and the two wing plates on two sides of the web plate are respectively combined to form two longitudinal grooves;

the hidden column type metal sound barrier unit plates are inserted into the longitudinal grooves of two adjacent H-shaped stand columns through the insertion convex parts at two ends, and the covering convex parts of the hidden column type metal sound barrier unit plates in the grooves at two sides of each H-shaped stand column can completely cover the outer surfaces of the H-shaped stand columns after being butted;

and four wing plates of the H-shaped upright post are inserted into a groove formed between the inserting convex part and the covering convex part of the hidden column type metal sound barrier unit plate.

According to the utility model discloses an aspect, be equipped with the elastic gasket between the pterygoid lamina of recess internal surface and the H type stand that forms between the insert of latent column type metal sound barrier cell board and the cover bellying.

According to the utility model discloses an aspect, the latent column type metal sound barrier cell board of every H type stand both sides is connected through establishing the first connecting piece on covering the bellying top, links together through H type connecting piece between two first connecting pieces, H type connecting piece and two connected latent column type metal sound barrier cell boards can form continuous level and smooth surface.

According to the utility model discloses an aspect, first connecting piece inserts the both sides recess of H type connecting piece, first connecting piece with the riveting between the pterygoid lamina of H type connecting piece.

The web of the H-shaped stand column is provided with a through hole, the insertion bosses at the two ends of the hidden column type metal sound barrier unit plates are provided with anti-falling devices, and the anti-falling devices on the insertion bosses of the hidden column type metal sound barrier unit plates at the two sides of the H-shaped stand column penetrate through the through holes to be connected with each other through ropes.

Compared with the prior art, the utility model discloses a latent column type metal sound barrier cell board is through inserting the design that closes the bellying and cover the bellying, insert and close the bellying and make the cell board insert in the recess of H type stand, the pterygoid lamina of H type stand closes the bellying parcel wherein with inserting of metal sound barrier cell board both ends, the cover bellying that is located the cell board of H type stand both sides links together at H type stand surface, wrap up it with H type stand, this kind of structural design who "embraces mutually", makes the structure of sound barrier more firm. Hidden column type metal sound barrier cell board adopts buckled or frame-type way will inhale the sound insulation material and link together shape and inhale the sound insulation module, all has horizontal or vertical skeleton to support between the positive backplate and fixes, forms the atress system of safety and stability, and the mode of strengthening such as wave is passed through to the positive back in addition, and further improvement intensity has great resistance when dealing with the wind load. Therefore the utility model provides a latent column type metal sound barrier cell board and sound barrier's mechanical properties such as anti-wind pressure, shock resistance are more outstanding. The installation efficiency of the modularized unit board is high; the internal sound absorption module is quickly replaced, and the whole life cycle cost is saved. And simultaneously, the utility model provides an implicit column type sound barrier has level and smooth surface, and mountable advertising facilities realizes advertisement and propaganda effect. The anti-drop device is arranged and the web plate of the H-shaped upright column is perforated, so that the hidden column type metal sound barrier unit plate is further prevented from dropping, and the safety factor is further improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic front view with a partial section of a column-hidden metal sound barrier unit plate according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along A-A of FIG. 1;

fig. 3 is a schematic cross-sectional view of the front panel 1 of the column-hidden metal sound barrier unit panel of the present invention;

fig. 4 is a schematic cross-sectional view of the back plate 2 of the pillar-concealed metal sound barrier unit plate according to the present invention;

fig. 5 is a schematic top view of the column-hidden metal sound barrier unit plate of the present invention;

fig. 6 is a schematic top view of the front panel 1 of the column-hidden metal sound barrier unit panel of the present invention;

fig. 7 is a schematic top view of the back plate 2 of the pillar-concealed metal sound barrier unit plate according to the present invention;

fig. 8 is a schematic structural relationship diagram of the steel upright post 200 and the hidden column type metal sound barrier unit plate 100 in the hidden column type metal sound barrier of the present invention;

fig. 9 is a partial enlarged view at B in fig. 8;

FIG. 10 is an enlarged view of a portion of FIG. 9 at C;

fig. 11 is a partial enlarged view at D in fig. 9.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection, either mechanically, electrically, or in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1:

as shown in fig. 1 to 7, a hidden column type metal sound barrier unit panel 100 according to a first embodiment of the present invention is shown, and as shown in fig. 1 and 2, the hidden column type metal sound barrier unit panel 100 includes a sound absorbing material layer 3, a sound insulating material layer 4, an upper support 51, a lower support 52, a front panel 1 and a back panel 2, wherein the sound absorbing material layer 3 and the sound insulating material layer 4 are fixed together by the upper support 51 and the lower support 52, and the front panel 1 and the back panel 2 are fastened outside the upper support 51 and the lower support 52. As shown in fig. 3 and 4, the front panel 1 includes a first panel 11, a first upper engaging portion 12, and a first lower engaging portion 13, and the rear panel 2 includes a second panel 21, and a second upper engaging portionThe first upper buckling part 12 is buckled outside the second upper buckling part 22 and buckled outside the upper support 51 together, and the first lower buckling part 13 is buckled outside the second lower buckling part 23 and buckled outside the lower support 52 together. The material of the front panel 1 may be aluminum alloy plate (3 series or 5 series), stainless steel plate, or galvanized plate, and the thickness is 0.5mm to 3 mm. The first panel part 11 is perforated with holes with the aperture of 2 mm-10 mm and the perforation rate of 20% -30%, the corrosion prevention can adopt the modes of powder spraying, fluorocarbon spraying and paint baking, the thickness of the coating is not less than 40 mu m, the adhesive force is not less than 0 level, and the metal sound insulation plate is used as a self-cleaning coating, has the self-cleaning function and prevents dust and rain marks. The front panel 2 can be an aluminum alloy plate (3 series or 5 series), a stainless steel plate and a galvanized plate, the thickness is 0.5 mm-3 mm, the corrosion resistance can be realized by adopting powder spraying, fluorocarbon spraying and paint baking modes, the coating thickness is not less than 40 mu m, the adhesive force is not less than 0 level, and the metal sound insulation plate is used as a self-cleaning coating and has a self-cleaning function and can prevent dust and rain marks. The sound absorption material layer 3 can be made of glass silk floss, rock wool, foamed aluminum and polyurethane materials. The thickness of the cotton material is 50-140 mm, the thickness of the foamed aluminum material is 4-10 mm, and the volume weight of the glass floss silk is not less than 32kg/m³The volume weight of rock wool is not less than 64kg/m³. The upper support 51 and the lower support 52 are made of galvanized plates, aluminum profiles or stainless steel plates, the thickness of the galvanized plates and the stainless steel plates is not less than 1mm, and the thickness of the aluminum profiles is not less than 1.5 mm. The sound insulation amount of the finished unit plate is not lower than 30dBA, the noise reduction coefficient is not lower than 0.7, the thickness of the finished plate is 80-140 mm, the finished plate can be a flat plate or a curved arc plate at one side of the flat plate, the connection between the finished plate and the finished plate can adopt a buckling type, a snap type, a tongue-and-groove type and a flat type, and the plate and the strut are sealed by rubber materials and are sound leakage-proof.

As shown in fig. 5, 6, and 7, fig. 5 is a plan view of the pillar-concealed metal sound barrier panel 100, and both end portions formed by combining the front panel 1 and the rear panel 2 have insertion projections 101 and covering projections 102. Fig. 6 is a schematic top view of the front panel 1. The front panel 1 comprises a covering convex part 102 and a first inserting convex part 14 which are symmetrically arranged at two ends, and the covering convex part 102 and the first inserting convex part 14 are combined to form a first groove 15 which can accommodate a wing plate 202 of the H-shaped upright post. Fig. 7 is a schematic top view of the back panel 2. The back panel 2 comprises a covering convex part 102 and a second inserting convex part 24 which are symmetrically arranged at two ends, and the covering convex part 102 and the second inserting convex part 24 are combined to form a second groove 25 which can accommodate a wing plate of the H-shaped upright post; the second insertion protrusion 24 is locked outside the first insertion protrusion 14 to form an insertion protrusion 101. The top end of each covering protrusion 102 is provided with a first connecting member 103 for connecting the covering protrusions 102 of the two unit plates 100 inserted into the grooves on both sides of the H-shaped pillar.

As shown in fig. 8-11, the inserting protrusion 101 is adapted to the groove of the H-shaped pillar 200, and the covering protrusion 102 extends along the outer surface of the H-shaped pillar 200 toward the longitudinal center line of the H-shaped pillar, so that the covering protrusions 101 of the two unit panels 100 inserted into the grooves on the two sides of the H-shaped pillar 200 can completely cover the outer surface of the H-shaped pillar 200 after being abutted. A groove is formed between the inserting convex part 101 and the covering convex part 102, and the groove can accommodate a wing plate 202 of the H-shaped upright post.

In a preferred embodiment of the present invention, the anti-falling device 6 is provided on the insertion protrusion 101 at both ends of the pillar concealed metal sound barrier panel 10.

Example 2:

this embodiment provides a hidden column type sound barrier, as shown in fig. 8, comprising the unit panel 100 and the steel frame shown in embodiment 1. The unit plates 100 are inserted into two adjacent H-shaped vertical columns 200, and form a sound barrier together.

As shown in fig. 9-11, the H-shaped pillar 200 includes a web 201 and four flanges 202 extending outwards from two ends of the web, the web 201 and the two flanges 202 on two sides of the web are combined to form two longitudinal grooves respectively; the hidden column type metal sound barrier unit plate 100 is inserted into the longitudinal grooves of two adjacent H-shaped columns 200 through the insertion convex parts 101 at two ends, and the insertion convex parts 101 are wrapped in the wing plates 202. The covering convex parts 102 of the hidden column type metal sound barrier unit plates 100 in the grooves on the two sides of each H-shaped upright column 200 can completely cover the outer surface of the H-shaped upright column 200 after butt joint. As shown in fig. 9, four wing plates 202 of the H-shaped pillar are inserted into a groove formed between the insertion boss 101 and the covering boss 102 of the hidden pillar type metal sound barrier panel. The H-shaped pillars 200 are completely wrapped by the two covering protrusions 102 of the unit panels 100 inserted at both sides. As shown in fig. 10, an elastic gasket 7 is provided between the inner surface of the groove formed between the insertion boss 101 and the cover boss 102 of the pillar type sound barrier metal panel 100 and the wing plate 202 of the H-shaped pillar. As shown in fig. 11, the hidden pillar type metal sound barrier unit panels 100 on both sides of each H-shaped pillar 200 are connected by the first connecting members 103 disposed at the top ends of the covering protrusions 102, the two first connecting members 103 are connected together by the H-shaped connecting member 300, the first connecting members 103 are inserted into the grooves on both sides of the H-shaped connecting member, the H-shaped connecting member 300 is fixed with the first connecting members 103 inserted into the grooves on both sides, and the two hidden pillar type metal sound barrier unit panels 100 connected with the two first connecting members of the H-shaped connecting member 300 can be connected to form a continuous and smooth outer surface. In the embodiment, the first connecting piece and the wing plate of the H-shaped connecting piece are fixed through riveting. The fastening can also be carried out in other conventional ways, as is known to the person skilled in the art.

As a preferable mode of this embodiment, as shown in fig. 9, a web 201 of the H-shaped pillar 200 is provided with a through hole 8, the insertion bosses 101 at both ends of the hidden pillar type metal sound barrier unit panel 100 are provided with the falling off prevention devices 6, and the falling off prevention devices 6 on the insertion bosses 101 of the hidden pillar type metal sound barrier unit panel 100 at both sides of the H-shaped pillar are connected to each other by passing a rope 9 through the through hole 8.

The specific installation scheme is as follows:

firstly, cleaning, correcting, derusting and corrosion preventing pre-embedded bolts of a sound barrier foundation.

And secondly, installing the steel upright post. The stand is in place on the embedded bolt, adopts column base nut to carry out preliminary fastening, then adopts the level bar to carry out levelling correction.

And thirdly, mounting the hidden column type metal sound barrier plate. The hidden column type metal sound barrier plates are inserted into the top end piece by piece, and then the end part H-shaped sealing plate penetrates into the top end part.

And fourthly, installing an anti-falling device. And (3) penetrating the stainless steel wire rope with the lock into the mounting grooves on two sides of the metal sound barrier piece by piece, and finally penetrating the stainless steel wire rope through the slotted hole in the lower part of the web plate of the steel upright post to perform knotting and locking.

Compared with the prior art, the utility model discloses a latent column type metal sound barrier cell board is through inserting the design that closes the bellying and cover the bellying, insert and close the bellying and make the cell board insert in the recess of H type stand, the pterygoid lamina of H type stand closes the bellying parcel wherein with inserting of metal sound barrier cell board both ends, the cover bellying that is located the cell board of H type stand both sides links together at H type stand surface, wrap up it with H type stand, this kind of structural design who "embraces mutually", makes the structure of sound barrier more firm. Hidden column type metal sound barrier cell board adopts buckled or frame-type way will inhale the sound insulation material and link together shape and inhale the sound insulation module, all has horizontal or vertical skeleton to support between the positive backplate and fixes, forms the atress system of safety and stability, and the mode of strengthening such as wave is passed through to the positive back in addition, and further improvement intensity has great resistance when dealing with the wind load. Therefore the utility model provides a latent column type metal sound barrier cell board and sound barrier's mechanical properties such as anti-wind pressure, shock resistance are more outstanding. The installation efficiency of the modularized unit board is high; the internal sound absorption module is quickly replaced, and the whole life cycle cost is saved. And simultaneously, the utility model provides an implicit column type sound barrier has level and smooth surface, and mountable advertising facilities realizes advertisement and propaganda effect. Anti-drop device's setting and the perforation design of the web of H type stand, further prevent falling of latent column type metal sound barrier cell board, factor of safety further promotes

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A column-hidden metal sound barrier unit plate is characterized by comprising a sound absorption material layer, a sound insulation material layer, an upper support, a lower support, a front panel and a back panel, the sound absorption material layer and the sound insulation material layer are fixed together through the upper support and the lower support, the front panel and the back panel are buckled outside the upper support and the lower support, the two ends formed by combining the front panel and the back panel are provided with inserting convex parts and covering convex parts, the inserting convex part is matched with the groove of the H-shaped upright post, the covering convex part extends to the longitudinal central line of the H-shaped upright post along the outer surface of the H-shaped upright post, so that the covering convex parts of the two unit plates inserted into the grooves at the two sides of the H-shaped upright post can completely cover the outer surface of the H-shaped upright post after being butted, a groove is formed between the inserting protruding portion and the covering protruding portion, and the groove can accommodate wing plates of the H-shaped stand column.

2. The hidden column type metal sound barrier unit plate according to claim 1, wherein the front panel comprises a first panel portion, a first upper buckling portion and a first lower buckling portion, the back panel comprises a second panel portion, a second upper buckling portion and a second lower buckling portion, the first upper buckling portion is buckled outside the second upper buckling portion and buckled outside the upper support together, and the first lower buckling portion is buckled outside the second lower buckling portion and buckled outside the lower support together.

3. The hidden column type metal sound barrier unit plate as claimed in claim 1, wherein the front panel comprises a covering convex part and a first inserting convex part which are symmetrically arranged at two ends, and the covering convex part and the first inserting convex part are combined to form a first groove which can accommodate a wing plate of an H-shaped upright column; the back panel comprises a covering lug boss and a second inserting lug boss which are symmetrically arranged at two ends, and the covering lug boss and the second inserting lug boss are combined to form a second groove capable of accommodating a wing plate of the H-shaped upright post; the second inserting and combining bulge part is buckled outside the first inserting and combining bulge part to form an inserting and combining bulge part of the hidden column type metal sound barrier unit plate.

4. The hidden column type metal sound barrier unit plate as claimed in claim 3, wherein the top end of each covering convex part is provided with a first connecting piece for connecting the covering convex parts of the two unit plates inserted into the grooves at both sides of the H-shaped upright column.

5. The hidden column type metal sound barrier unit plate as claimed in claim 1, wherein the insertion protruding parts at both ends of the hidden column type metal sound barrier unit plate are provided with anti-falling devices.

6. A hidden column type sound barrier, which is characterized by comprising a steel frame, and the metal sound barrier unit plate as claimed in any one of claims 1 to 5 inserted in the steel frame; wherein the content of the first and second substances,

7. The sound barrier of claim 6, wherein an elastic gasket is provided between the inner surface of the groove formed between the insertion protrusion and the covering protrusion of the sound barrier unit plate and the wing plate of the H-shaped pillar.

8. The sound barrier of claim 6, wherein the metal sound barrier panels of the hidden column on both sides of each H-shaped pillar are connected by the first connecting members disposed at the top ends of the covering protrusions, and the two first connecting members are connected together by the H-shaped connecting members, and the H-shaped connecting members and the two connected metal sound barrier panels of the hidden column can form a continuous and smooth outer surface.

9. The sound barrier of claim 8, wherein the first connecting member is inserted into the grooves at two sides of the H-shaped connecting member, and the first connecting member is riveted with the wing plate of the H-shaped connecting member.

10. The sound barrier of claim 6, wherein the web of the H-shaped pillar is provided with a through hole, the insertion protrusions at the two ends of the metal sound barrier unit plates are provided with anti-falling devices, and the anti-falling devices on the insertion protrusions of the metal sound barrier unit plates at the two sides of the H-shaped pillar are connected to each other by a rope passing through the through hole.