CN112832477A - Concrete hanging plate for exterior wall - Google Patents

Abstract

The invention provides an outer wall concrete hanging plate which is hung on an outer wall of a building and comprises a first keel fixed on the outer wall, a first connecting piece connected to the first keel and a concrete hanging plate fixed on the first connecting piece, wherein a plurality of U-shaped connecting pieces are anchored on the outer wall, a first clamping part is constructed on each U-shaped connecting piece, the first keel is a first frame formed by a plurality of keel pieces, at least part of the keel pieces are constructed with second clamping parts, and the second clamping parts are clamped with the first clamping parts to be suitable for fixing the first keel on the outer wall. The U-shaped connecting piece is formed by bending elastic materials. The invention has simple and convenient installation work, convenient installation and fixation, firm connection and difficult falling in extreme weather and earthquake disasters. The precast process at the concrete link plate does not need more arrangement of reinforcement or built-in fitting, has also saved the cost simultaneously.

Description

Concrete hanging plate for exterior wall

Technical Field

The invention relates to the technical field of constructional engineering, in particular to an exterior wall concrete cladding.

Background

In the technical field of building engineering, a concrete exterior wall cladding is a common exterior vertical surface construction method, and a prefabricated concrete cladding is usually hung outside a building wall body through dry hanging, so that the concrete exterior wall cladding mainly plays roles in appearance decoration, heat preservation and the like. Because the concrete exterior wall cladding hangs in the facade of building, firm safety should be considered in material and mounting means, guarantees long-time surface not ftractureing under the outdoor environment, still should consider the safety factor simultaneously in particular, prevents to fall under the circumstances such as strong wind weather and earthquake.

In the prior art, the concrete hanging plate is simpler, and the in-process that is the site operation mostly directly fluting, dry-hang, the installation effectiveness is lower, has higher requirement to installer's proficiency, and can produce a large amount of noise pollution and dust pollution.

In addition, because construction methods's restriction, current concrete link plate articulates through limited fulcrum mostly, and stress ratio is concentrated, has certain requirement to concrete link plate's intensity, when precast concrete link plate, if join in marriage the easy production fracture in single-layer reinforcing bar in the future, then weight and thickness are wayward when joining in marriage double-deck reinforcing bar, and is neither pleasing to the eye again the cost is improved. During installation and construction, due to the limited adjusting range, an installer is not easy to control errors, and cracks or falls easily due to limited movement in extreme weather and earthquake disasters in the future.

Aiming at the problems of material strength, connection safety, inconvenience in installation and the like of the concrete hanging plate, a plurality of improvements are provided in the prior art. For example, chinese patent publication CN104652671B discloses a prefabricated assembly type concrete external wall panel fixing device, which includes a wall top hanging piece and a panel surface embedded piece, wherein the panel surface embedded piece can be connected with the wall top hanging piece; the wall top hanging piece comprises an L-shaped steel plate, openings are formed in a transverse plate and a vertical plate of the steel plate, and a reinforcing steel plate is connected between the transverse plate and the vertical plate; the back of the vertical plate is fixedly connected with at least two wing plates consistent with the direction of the vertical plate, and a plurality of through holes are formed in the wing plates; the wing plates penetrate through a plurality of transverse steel bars, and a plurality of vertical steel bars are connected to the transverse steel bars in a crossed manner; the plate surface embedded part comprises a bottom plate, a bolt is fixedly connected above the bottom plate, and the bolt can be inserted into an opening in a transverse plate of the steel plate; and a plurality of anchor bars are fixedly connected below the bottom plate. It has the stable firm and construction convenient advantage of connection, still does not solve the tie point of link plate and facade too seldom and leads to the problem of concrete link plate stress concentration itself, therefore has to use a plurality of anchor bars reinforcing joint strength, leads to the precast process construction of concrete link plate complicated relatively, and uses more steel to lead to having improved the prefabrication cost.

Chinese patent publication CN104234366A discloses a composite prefabricated external wall cladding pendant and a device thereof, and a composite external wall cladding pendant and a device thereof, which comprises a composite external wall cladding embedded part, a superposed beam embedded part and a beam plate mounting connection picking part, and is characterized in that: the inner side surface of the composite exterior wall cladding is provided with an inner concave cavity; an outer wall cladding embedded part formed by connecting a transverse anchoring point and a bearing cantilever part is arranged in the inner concave cavity; anchoring ribs are respectively arranged on the left side, the right side and the upper side of the embedded part on the inner side surface of the concave cavity; the overlapped part in the overlapped beam is provided with an embedded part; the upper end of the superposed beam embedded part is provided with a beam plate connecting and picking part; the top of the composite exterior wall cladding is connected with the concrete column through a linking piece. The control device has the advantages of adjustable control position, flexible installation and convenient construction, and can improve the installation efficiency of the assembly type building construction. However, the connection arrangement of the composite prefabricated external wallboard embedded part, the superposed beam embedded part and the beam plate installation connection cantilever part is still too complicated, the number of the embedded parts and the embedded ribs is large, the material cost is high, the stress of the connection points is concentrated, and the connection strength and the anti-seismic performance are limited.

Thus, there remains a need in the art for improvements.

Disclosure of Invention

In view of the above problems in the prior art, the present invention aims to provide a concrete cladding for exterior walls, which is low in cost, convenient to install and debug, safe and firm.

In order to achieve the above object, the exterior wall concrete cladding provided by the invention is mounted on an exterior wall of a building, and comprises a first keel fixed on the exterior wall, a first connecting piece connected to the first keel, and a concrete cladding fixed on the first connecting piece, wherein a plurality of U-shaped connecting pieces are anchored on the exterior wall, a first clamping part is constructed on each U-shaped connecting piece, the first keel is a first frame formed by a plurality of keel pieces, a second clamping part is constructed on at least part of the keel pieces, and the second clamping part is in clamping fit with the first clamping part so that the first keel is fixed on the exterior wall.

Preferably, the first connecting member includes a plurality of first fixing members fixed to the first keel, and a plurality of fixing rods respectively inserted and fixed between two adjacent first fixing members, and the plurality of fixing rods and the plurality of first fixing members are configured as a second frame having a plurality of insertion spaces; the concrete hanging plate comprises a plurality of hanging plate units which are spliced with each other, and each hanging plate unit is at least partially clamped and fixed in the inserting space.

Preferably, the fixing rod is provided with a first special-shaped groove in a penetrating manner along the length direction of the fixing rod, the periphery of the first fixing part is provided with a plurality of inserting tenons which are matched with the first special-shaped groove in an inserting manner, and the hanging plate unit is at least partially embedded in the first special-shaped groove.

Preferably, the keel member forming the first keel comprises a plurality of vertical keel members and a plurality of horizontal keel members fixed on the vertical keel members, and the second clamping portion is arranged on the vertical keel members; horizontal keel spare is link up along its length direction and is equipped with second dysmorphism groove, first connecting piece includes that a plurality of grafting adaptations are in second mounting in the second dysmorphism inslot, the concrete link plate passes through the second mounting is connected on the first fossil fragments.

Preferably, the second special-shaped groove comprises a first groove body and a second groove body, the second fixing part comprises a body which is fixedly attached to the concrete hanging plate, and an inserting part and a lapping part which are formed at two ends of the body respectively, the inserting part is at least partially inserted into the second groove body, and the lapping part is hung on the outer side of the first groove body.

Preferably, the body is connected with the concrete hanging plate through an expansion bolt.

As preferred, the U-shaped connecting piece is buckled by elastic material and is formed, the tank bottom in the U-shaped groove of structure on it be provided with the crab-bolt that the outer wall is connected, vertical fossil fragments spare centre gripping is fixed the U-shaped inslot, the both sides wall in U-shaped groove is close to the tip and is provided with the structure in opposite directions and does the tongue of inserting of first joint portion is located the U-shaped inslot correspond on the vertical fossil fragments spare to be provided with the structure and does the slot of second joint portion, insert the tongue with slot joint adaptation.

Preferably, the tongue is formed in a trapezoidal shape having at least one oblique side.

Preferably, the width of one side of the vertical keel piece inserted into the U-shaped groove of the U-shaped connecting piece is smaller than that of the opposite side of the vertical keel piece, and the overall cross section of the vertical keel piece is isosceles trapezoid.

Preferably, the vertical keel piece is provided with the elastic positioning protrusions capable of elastically deforming under the action of external force, the positions of the insertion grooves are arranged in parallel, and correspondingly, the inner wall of the U-shaped groove is provided with positioning holes matched with the elastic positioning protrusions.

Compared with the prior art, the outer wall concrete hanging plate provided by the invention is fixed on an outer wall through the connection of the first keel and the U-shaped connecting piece, is convenient and quick to install on site, is easy to control installation errors, and can be suitable for various precast concrete hanging plates. In a further embodiment, the U-shaped connecting piece is formed by bending an elastic material, the vertical keel piece is provided with an elastic positioning protrusion, and correspondingly, the inner wall of the U-shaped groove is provided with a positioning hole matched with the elastic positioning protrusion, so that the installation work is further simplified, and the installation and the fixation are very convenient. In the scheme of the joint adaptation of the inserting tongue of the first joint portion of the U-shaped groove and the inserting groove of the second joint portion of the vertical keel piece in the U-shaped groove, the installation and construction on site are very convenient and fast, the connection is firm, meanwhile, the elastic fittings enable the shock resistance of the concrete hanging plate to be further improved, and the concrete hanging plate is not prone to falling off in extreme weather and earthquake disasters. In the preferred scheme, there are a plurality of second frames of establishing the space of inserting, the concrete link plate includes a plurality of link plate units of splicing each other, and this kind of mode is at least partly to be blocked to establish and is fixed link plate unit insert and establish the space, for adopting a plurality of fulcrums to connect link plate unit in the prior art, further improved the security, the precast process of concrete link plate does not need more arrangement of reinforcement or built-in fitting, and the frivolous that the link plate can be done has also saved the cost simultaneously. Because of the stress dispersion of the concrete hanging plate, the hanging plate is not easy to crack or fall in extreme weather under outdoor long-term severe environment.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

Fig. 1 is a schematic view of a three-dimensional explosion structure of a first embodiment of a concrete cladding panel for an exterior wall of the present invention.

Fig. 2 is a schematic structural view (including a U-shaped connecting member) of a keel member according to a first embodiment of a concrete cladding for exterior walls of the invention.

Fig. 3 is a schematic perspective exploded view of another embodiment of a keel member according to the first embodiment of the concrete cladding for exterior walls of the invention.

Fig. 4 is a schematic perspective view of an anchor bolt for anchoring a U-shaped connecting member according to a first embodiment of the concrete cladding for exterior walls of the present invention.

Fig. 5 is a schematic structural view of a cladding unit fixing member according to a first embodiment of the exterior wall concrete cladding of the present invention.

Fig. 6 is a schematic perspective view (including a partially enlarged view) illustrating a second embodiment of a concrete cladding for exterior walls according to the present invention.

Fig. 7 is another perspective view (including a partially enlarged view) of a second embodiment of a concrete cladding for exterior walls according to the present invention.

Fig. 8 is a schematic view (including a partially enlarged view) showing a connection structure between a cladding unit and a first connector according to a second embodiment of the concrete cladding for exterior walls of the present invention.

The main reference numbers:

100 … exterior walls; 200 … a first keel; 300 … a first connector; 400 … link plate units; 500 … second fastener; 201 … U-shaped connecting piece; 202 … vertical keel; 203 … transverse keel; 301 … a first fastener; 302 … securing the rod; 303 … connecting panels; 501 … plug part; 502 … lap joint; 503 … a first fixing bolt; 504 … hanging panel unit mounts; 2011 … U-shaped connector body; 2012 … anchor bolt; 2013 … a second fixing bolt; 3021 … a first profile groove; 3022 … snap-fit grooves; 3031 … a card end; 5041 … a fastener body; 5042 … a first expansion tip; 50421 … a first elastic sheet; 20111 … screw hole; 20112 … tongue insert; 20113 … hypotenuse; 20211 … slot; 20121 … an anchor body; 20122 … fastening a nut; 20123 … narrow neck end; 20124 … hoop; 20125 … a second inflation tip; 20126 … second elastic sheet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure.

It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.

As shown in fig. 1 and 2, in a first embodiment of the concrete cladding for an exterior wall provided by the invention, a concrete cladding (not labeled) composed of a plurality of cladding units 400 is mounted on an exterior wall 100 of a building through a mounting structure, the mounting structure includes a first keel 200 fixed on the exterior wall 100, a first connecting member 300 connected to the first keel 200, and the concrete cladding fixed on the first connecting member 300, a plurality of U-shaped connecting members 201 are anchored on the exterior wall 100 through anchor bolts 2012, a first clamping portion (not labeled in the figure) is configured on each U-shaped connecting member 201, the first keel 200 is a first frame composed of a plurality of keel members, and a second clamping portion is configured on at least part of the keel members. In the example of fig. 1, this clamping is effected by means of the elastic clamping of the U-shaped connecting piece 201 in conjunction with the fastening of the second fixing bolt 2013. The second clamping portion is adapted to the first clamping portion in a clamping manner so that the first keel 200 is fixed on the outer wall 100. It can be understood that, in the invention, the U-shaped connecting piece 201 is made of elastic material to form clamping connection, and is matched with the bolt for fixing, so that the concrete hanging plate can be conveniently and quickly constructed and installed and is firmly connected.

Specifically, in the embodiment shown in fig. 1, the first connecting member 300 may specifically include a plurality of first fixing members 301 fixed on the first keel 200, and a plurality of fixing rods 302 respectively inserted and fixed between two adjacent first fixing members 301, and the plurality of fixing rods 302 and the plurality of first fixing members 301 are configured as a second frame (not labeled) having a plurality of insertion spaces (not labeled); the concrete hanging plate comprises a plurality of hanging plate units 400 which are spliced with each other, and each hanging plate unit 400 is at least partially clamped and fixed in the inserting space. More specifically, the first connecting member 300 may be fixed to the first keel 200 by means of bolt fastening, etc., and further, a plurality of first fixing members 301 of different shapes and fixing rods 302 of the same structure are spliced to form a second frame of a grid shape of the same specification, and at this time, a plurality of the cladding units 400 constituting the concrete cladding may be constructed by being embedded in each grid. This fitting process can be performed by providing the fixing rod with a first special-shaped groove 3021 extending through the fixing rod in the longitudinal direction thereof, and the first special-shaped groove 3021 can be connected to the first fixing member 301. Specifically, the first fixing member 301 is provided at its periphery with a plurality of inserting tenons (not shown) which are adapted to be inserted into the first shaped grooves 3021, and more importantly, the hanging plate unit 400 can be at least partially inserted into the first shaped grooves 3021 for assembly. As a further improvement, in some embodiments, as shown in fig. 1, the first connector further includes a connection panel 303, which is configured with a snap-in end 3031 at two sides and a fixing hole at one side near the scraper unit 400, and correspondingly, the inner wall of the first groove 3021 is configured with a snap-in portion 3022 at two opposite sides for snap-fitting with the snap-in end 3031. In this way, a plurality of connection panels 303 can be bonded or screwed to a predetermined specification in advance in the construction, and when the construction is required, the connection panels 303 can be directly engaged with the first special-shaped grooves 3021 to be fixed by engagement. Compared with an embedded mode, the mode can enable seams among the plurality of hanging plate units 400 to be small, the appearance degree is higher, and the connection stability and the subsequent maintainability are better.

In some embodiments of the present invention, as shown in fig. 6 and 7, the keel member constituting the first keel 200 includes a plurality of vertical keel members 202 and a plurality of horizontal keel members 203 fixed on the vertical keel members 202, wherein fig. 3 shows a schematic view of a connection structure of the improved vertical keel members 202 and the U-shaped connecting member 201. As shown in fig. 3, the width of one side of the vertical keel 202 inserted into the U-shaped groove of the U-shaped connecting member 201 is smaller than that of the opposite side thereof, and the overall cross section is isosceles trapezoid. Thereby achieving the technical effect of more convenient assembly. Simultaneously, U-shaped connecting piece 201 can be by elastic material (for example steel thin slice or ABS) bending type, the tank bottom in the U-shaped groove of structure on it be provided with the crab-bolt that outer wall 100 is connected, vertical keel spare 202 centre gripping is fixed the U-shaped inslot, the both sides wall in U-shaped groove is close to the tip and is provided with the structure in opposite directions and does the tongue 20112 of inserting of first joint portion is located the U-shaped inslot correspond on the vertical keel spare 202 and be provided with the structure and do the slot 20211 of second joint portion, tongue 20112 with slot 20211 joint adaptation. In this embodiment, more convenient assembly can be achieved. In addition, it is considered that the shallow groove 2021 is formed at the position of the insertion groove 20211 on the vertical keel 202, and the insertion groove 20211 is located in the shallow groove 2011. In this way, the tongue 20112 can smoothly slide along the shallow slot 2021 and slide into the slot 20211 to achieve a plug-in fit. As a further improvement, it is also conceivable to configure the tongue 20112 as a trapezoid having at least one oblique side 20113. This configuration may provide less resistance and easier sliding of the tongue 20112 into the slot 20211 as it slides within the shallow groove 2021. Of course, in this embodiment, the elastic property of the U-shaped connecting member 201 still needs to be relied on, and specifically, the U-shaped connecting member body 2011 of the U-shaped connecting member 201 at least needs to be made of an elastic material. And a screw hole for the anchor bolt 2012 to penetrate through is required to be arranged on the U-shaped connecting piece body 2011. As a further improvement, in some embodiments, the vertical keel member 202 is provided with an elastic positioning protrusion (not shown) capable of elastically deforming under the action of an external force, and a positioning hole matching with the elastic positioning protrusion is correspondingly provided on the inner wall of the U-shaped groove, at a position where the slot 20211 is provided. Thereby further enhancing the fixation effect.

On the basis of the above scheme, the second clamping portion can be specifically arranged on the vertical keel member 202; the transverse keel member 203 is provided with a second shaped groove (not labeled) running through along the length direction thereof, and the second shaped groove may actually be formed by a first groove body 2032 and a second groove body 2031. In this embodiment, the first connecting member is substantially different from the first embodiment, and as shown in fig. 7 and 8, the first connecting member includes a plurality of second fixing members 500 inserted and fitted in the second profile grooves, and the concrete cladding panel is connected to the first keel 200 by the second fixing members 500. The second fixing member 500 specifically includes a body attached and fixed to the concrete hanging plate, and an inserting portion 501 and a bridging portion 502 respectively formed at two ends of the body, wherein the inserting portion 501 is configured to be at least partially inserted into the second groove 2031, and the bridging portion 502 is configured to be mounted on an outer side of the first groove 2032. In some applications, the second fixing member 500 may be fixed on the peg board unit 400 in advance, and then the peg board unit 400 is tilted to peg the peg board 501 into the second slot 2031, and then the peg board unit 400 is leveled with the exterior wall 100 to mount the lap joint 502. At the same time, the second fixing member 500 can still slide in the second profile groove to adjust the assembly position. After the adjustment is completed, the second fixing member 500 can be fixed to the transverse keel member 203 by the first fixing bolt 503 to complete the assembly.

Fig. 4 shows a schematic structural view of an anchor bolt for fixing the U-shaped connecting member 201 to the exterior wall 100, and as shown in fig. 4, since the exterior wall on which the concrete cladding is to be constructed is generally rough and uneven, if a conventional expansion screw is used, it may cause a problem of unstable mounting. Therefore, in the present invention, the anchor 2012 preferably includes an anchor body 20121 and a fastening nut 20122, and the anchor body 20121 is configured with a narrowed neck end 20123 near the end, the anchor body is provided with a collar 20124 near the narrowed neck end 20123, the narrowed neck end 20123 is sleeved with a second expansion end 20125, and the second expansion end 20125 can be formed by a plurality of second spring pieces 20126. The clamp 20124 is configured to restrain the second resilient tab 20126 on the narrowed neck end 20123 and to give way when inserted into the exterior wall 100 to release the restraint, and the second resilient tabs 20126 are radially outwardly expanded to be fixed. When different from a common expansion screw, the expansion screw does not depend on the linkage of a fastening nut, and the stress damage to the wall surface is small, so that a better mounting effect can be realized.

Figure 5 shows a schematic view of the peg board unit mount 504, as shown in figure 5, which includes a mount body 5041 and a first expansion tip 5042, the first expansion tip 5042 including a plurality of first resilient tabs 50421. The peg board unit securing member 504 may enable the second securing member 500 to be fixedly coupled to the peg board unit 400.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims (10)

1. The utility model provides an outer wall concrete link plate, carries on the outer wall of building, including fixing first fossil fragments on the outer wall, connect first connecting piece on the first fossil fragments and fix concrete link plate on the first connecting piece, the anchor is provided with a plurality of U-shaped connecting pieces on the outer wall, be constructed first joint portion on the U-shaped connecting piece, first fossil fragments is the first frame that comprises a plurality of fossil fragments spare, at least part be constructed second joint portion on the fossil fragments spare, second joint portion with first joint portion joint adaptation is so that first fossil fragments are fixed on the outer wall.

2. The exterior wall concrete cladding panel of claim 1, wherein the first connecting member comprises a plurality of first fixing members fixed on the first keel, and a plurality of fixing rods respectively inserted and fixed between two adjacent first fixing members, and the plurality of fixing rods and the plurality of first fixing members are configured as a second frame having a plurality of insertion spaces; the concrete hanging plate comprises a plurality of hanging plate units which are spliced with each other, and each hanging plate unit is at least partially clamped and fixed in the inserting space.

3. An exterior wall concrete cladding panel as claimed in claim 2, wherein a first profiled slot is provided through the fixing rod along the length direction thereof, a plurality of insertion tenons adapted to the first profiled slot are provided around the first fixing member, and the cladding panel unit is at least partially embedded in the first profiled slot.

4. An exterior wall concrete cladding panel according to claim 1, wherein the keel members constituting the first keel comprise a plurality of vertical keel members and a plurality of horizontal keel members fixed to the vertical keel members, and the second clamping portion is provided on the vertical keel members; horizontal keel spare is link up along its length direction and is equipped with second dysmorphism groove, first connecting piece includes that a plurality of grafting adaptations are in second mounting in the second dysmorphism inslot, the concrete link plate passes through the second mounting is connected on the first fossil fragments.

5. The exterior wall concrete cladding of claim 4, wherein the second profile groove comprises a first groove body and a second groove body, the second fixing member comprises a body which is fixedly attached to the concrete cladding, and an inserting part and a lapping part which are respectively formed at two ends of the body, the inserting part is at least partially inserted into the second groove body, and the lapping part is hung on the outer side of the first groove body.

6. An exterior wall concrete cladding panel according to claim 5, said body being connected to said concrete cladding panel by expansion bolts.

7. An exterior wall concrete hanging plate as claimed in claim 4, wherein the U-shaped connecting member is formed by bending an elastic material, a fixing bolt connected with the exterior wall is arranged at the bottom of a U-shaped groove formed in the U-shaped connecting member, the vertical keel member is clamped and fixed in the U-shaped groove, insertion tongues formed as the first clamping portions are oppositely arranged at the end parts of two side walls of the U-shaped groove, insertion grooves formed as the second clamping portions are correspondingly arranged on the vertical keel member in the U-shaped groove, and the insertion tongues are in clamping fit with the insertion grooves.

8. An exterior wall concrete cladding panel as claimed in claim 7, wherein said tongue is of trapezoidal configuration having at least one beveled side.

9. An exterior wall concrete cladding panel as claimed in claim 7, wherein said vertical keel member has a smaller width on one side inserted into said U-shaped channel than on the opposite side, and has an isosceles trapezoidal overall cross-section.

10. An exterior wall concrete cladding panel according to claim 7, wherein the vertical keel member is provided with the slots at positions which are juxtaposed with each other and which are provided with elastic positioning protrusions which can be elastically deformed under the action of external force, and correspondingly, the inner wall of the U-shaped slot is provided with positioning holes which are matched with the elastic positioning protrusions.

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