CN117005638A - Outer wall surface decoration stone dry-hanging installation structure and construction method - Google Patents

Abstract

The application relates to the field of building stone dry hanging, in particular to an outer wall surface decoration stone dry hanging installation structure and a construction method. Wherein mounting structure is including anti draw gear and pendant, and anti draw gear includes sleeve and fastening screw, articulated on the sleeve is connected with barb structure, and the coaxial slip cartridge of fastening screw is inside the sleeve, is connected through adjusting part between fastening screw and the sleeve, and the pendant upper end is connected with fastening screw, and the lower extreme is connected with the slabstone to hang slabstone futilely in the wall. When the anti-pulling device is planted in a wall, the barb structure is firstly expanded to be abutted against the inner wall of the reserved hole, then the sleeve is outwards moved for a preset distance through the adjusting component, and the barb structure is in a tight anti-pulling state and is solidified by colloid injected into the hole in advance.

Description

Outer wall surface decoration stone dry-hanging installation structure and construction method

Technical Field

The application relates to the field of building stone dry hanging, in particular to an outer wall surface decoration stone dry hanging installation structure and a construction method.

Background

The stone dry hanging installation is a novel construction process in wall decoration, the method uses metal hanging parts to directly hang facing stone on a wall surface or hang facing stone on a steel frame without grouting and pasting, the condition that stone materials are mutually extruded, cracked and deformed caused by traditional slurry pasting can be effectively avoided, the installation is convenient, the efficiency is high, the appearance is attractive, and the method is widely applied in the building construction and wall decoration fields in recent years.

The metal hanging piece used in stone dry hanging is usually connected with a wall by adopting an expansion screw or a point hanging anchor bolt, for example, chinese patent document with the authority of CN 114033121B discloses an outer wall stone dry hanging installation structure which comprises a combination sheet fixedly connected on the wall through the expansion screw. The point-hung anchor bolts in the related art are formed by punching holes on the steel bars, penetrating the initially expanded tensioning steel bars, and realizing fixed connection by utilizing the abutting connection of the tensioning steel bars and the wall after being implanted into the wall. Although the metal hanging pieces and the wall are fixed to a certain extent, the metal hanging pieces and the wall are limited in fixing strength, poor in pulling resistance and low in stone installation reliability.

The information disclosed in the background section of the application is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

According to the defects of the prior art, the application provides an outer wall surface decoration stone dry-hanging installation structure and a construction method, which are used for solving the problems of poor drawing resistance and low stone installation reliability of the existing stone dry-hanging technology.

The application relates to an outer wall surface decoration stone dry-hanging installation structure which adopts the following technical scheme: comprising the following steps:

the pulling-resistant device comprises a sleeve and a fastening screw;

the sleeve is hinged with a barb structure, the barb structure always has a trend of rotating and expanding towards the outside of the sleeve, the initial barb structure is contained in the sleeve through a locking assembly, the sleeve is inserted into a reserved hole of a wall, and after the sleeve is inserted in place, the barb structure is unlocked and expands outwards under the action of an unlocking assembly, and then is abutted against the inner wall of the reserved hole;

the fastening screw is provided with a polish rod section and a thread section, the polish rod section of the fastening screw is coaxially inserted into the sleeve and can axially and relatively slide with the sleeve, the fastening screw is connected with the sleeve through an adjusting assembly, and the adjusting assembly is configured to enable the sleeve to move a preset distance to the outside of the wall under the action of the movement of the fastening screw to the wall after the barb structure is outwards expanded and is abutted against the wall, so that the abutting force between the barb structure and the inner wall of the reserved hole is increased;

and the upper end of the hanging piece is connected with the fastening screw, and the lower end of the hanging piece is connected with the stone plate so as to dry-hang the stone plate on the wall.

Optionally, the locking subassembly includes the fastener and sets up the pothook on the barb structure, and the slip cartridge of fastener is in telescopic lateral wall, and initial fastener and pothook joint are in order to hinder barb structure to the outside rotation expansion of sleeve, and the fastener breaks away from with the pothook after removing the direction of keeping away from the wall to predetermine the distance in order to release barb structure.

Optionally, a middle clamping cylinder is coaxially inserted between the sleeve and the fastening screw, and the middle clamping cylinder, the sleeve and the fastening screw can slide relatively along the axial direction;

the unlocking component comprises a triggering pressing block, the triggering pressing block is arranged at one end of the middle clamping cylinder close to the wall, the triggering pressing block is elastic, the triggering pressing block acts on the clamping piece, after the sleeve is inserted in place, the triggering pressing block abuts against the bottom of the reserved hole and is extruded, and then the clamping piece moves in a direction far away from the wall.

Optionally, the adjusting part includes articulated expansion plate, and articulated expansion plate can both ends be flexible, and the tip of one of them expansion plate is articulated with fastening screw, and the tip of another expansion plate is articulated with the sleeve, and the centre of articulated expansion plate fixed part is close to telescopic position and middle double-layered section of thick bamboo articulated.

Optionally, a sliding groove is formed in the sleeve, and a hinge point between the hinged expansion plate and the sleeve is slidably arranged in the sliding groove; the barb structure is provided with a baffle plate, the baffle plate can be abutted against the hinge point between the hinge expansion plate and the sleeve to slide along the sliding chute, and the angle of the barb structure for outwards rotating and expanding the sleeve is positively correlated with the sliding distance of the hinge point between the hinge expansion plate and the sleeve along the sliding chute.

Optionally, the barb structure is provided with two sets of at least along telescopic axial interval, and every group is a plurality of, and barb structure in the same group is along telescopic circumferencial direction equipartition, and barb structure among the multiunit misplaces at telescopic circumferencial direction.

Optionally, the barb structures are provided with two groups, each group is two, the two groups of barb structures are respectively arranged at two ends of the sleeve, and an included angle between the two groups of barb structures is 90 degrees.

Optionally, a longitudinal long hole is formed in the hanging piece, the fastening screw is inserted into the longitudinal long hole and connected with the hanging piece through a nut, and a limit screw is arranged at the top of the hanging piece.

Optionally, the hanging piece is connected with the stone slab through an anchor bolt.

The construction method for dry-hanging the decorative stone on the outer wall surface uses the dry-hanging installation structure for the decorative stone on the outer wall surface, and the construction method for dry-hanging the decorative stone on the outer wall surface comprises the following steps:

s100, punching a reserved hole in a preset position of a wall;

s200, cleaning the reserved holes and injecting glue;

s300, inserting the pulling-resistant device into the reserved hole;

s400, connecting and fixing the hanging piece with the stone plate;

s500, connecting and fixing the stone slab with the hanging piece fixed with the corresponding pulling-resistant device transversely and longitudinally.

The beneficial effects of the application are as follows: according to the dry-hanging installation structure of the decorative stone on the outer wall, the pull-out resistance device is arranged, when the pull-out resistance device is used, the barb structure further moves on the basis of being abutted against the inner wall of the reserved hole of the wall, so that the barb structure is in a tight pull-out resistance state and is solidified by the colloid injected into the reserved hole in advance, and compared with a structure which is just bounced and solidified by the colloid, a better pull-out resistance effect is provided.

According to the application, through the arrangement of the chute and the retaining plate on the barb structure, the spring-open angle of the barb structure can be changed along with the change of the inner diameter of the preformed hole, so that the exposed length of the chute is changed, the larger the inner diameter of the preformed hole is, the larger the spring-open angle of the barb structure is, the larger the exposed length of the chute is, the larger the moving distance of the barb structure along with the sleeve is, the stronger the tensile pulling effect can be provided by the barb structure, therefore, the tensile pulling device of the same model can provide different pretightening forces only by slightly adjusting the aperture of the preformed hole of the wall, the application range of the device is enlarged, and the practicability is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, it being understood that these drawings are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of an exterior wall decoration stone dry-hanging installation structure in use of dry-hanging stone slabs;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a schematic diagram of the pull-out resistance device in the dry-hanging installation structure of the exterior wall decoration stone material;

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

FIG. 7 is a schematic view of another angle of the pull-out resistance device in the dry-hanging installation structure of the exterior wall decoration stone material of the present application;

FIG. 8 is a cross-sectional view B-B of FIG. 7;

figure 9 is a schematic view of the hidden barb structure of figure 6;

fig. 10 is an enlarged view at C in fig. 9.

In the figure:

100. a slate;

200. a hanging piece;

300. a pull-out resistance device; 301. fastening a screw; 302. a sleeve; 303. a middle clamping cylinder; 304. triggering a pressing block; 305. a chute; 306. hinging the expansion plate; 307. a barb structure; 308. a clamping hook; 309. and a locking piece.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

As shown in fig. 1 to 10, the dry-hanging installation structure of the exterior wall decoration stone provided by the embodiment of the application is used for installing a stone slab 100 to a wall in a dry-hanging manner, and specifically comprises an anti-drawing device 300 and a hanging piece 200. The anti-pullout device 300 comprises a sleeve 302 and a fastening screw 301; the sleeve 302 is hinged with the barb structure 307, the barb structure 307 always has a trend of rotating and expanding towards the outside of the sleeve 302, namely, a torsion spring is arranged at the hinged position of the sleeve 302 and the barb structure 307, the torsion spring has a trend of enabling the barb structure 307 to rotate outwards, a release groove is formed in the side wall of the sleeve 302 and used for enabling the barb structure 307 to rotate and stretch out, the initial barb structure 307 is stored in the sleeve 302 through a locking assembly, a reserved hole is formed in the wall in advance, the sleeve 302 is inserted into the reserved hole of the wall and drives the fastening screw 301 to synchronously enter the reserved hole, after the sleeve 302 is inserted into place, the barb structure 307 is unlocked with the locking assembly under the action of the unlocking assembly, and the barb structure 307 rotates and stretches out to expand towards the outside of the sleeve 302 and is abutted to the inner wall of the reserved hole.

The fastening screw 301 has a polish rod section and a thread section, the polish rod section of the fastening screw 301 is coaxially inserted in the sleeve 302 and can axially and relatively slide with the sleeve 302, the fastening screw 301 and the sleeve 302 are connected through an adjusting component, and the adjusting component is configured to enable the sleeve 302 to move a preset distance to the outside of the wall under the action of the movement of the fastening screw 301 to the wall after the barb structure 307 expands outwards and abuts against the wall, so that the abutting force between the barb structure 307 and the inner wall of the reserved hole is increased.

The hanging member 200 is made of metal, is bent in a substantially S shape, and the upper end of the hanging member 200 is connected with the fastening screw 301, and the lower end is connected with the slate 100, so that the slate 100 is hung on the wall. When the pull-out resistant device 300 is planted in a wall, the barb structure 307 is firstly expanded to be abutted against the inner wall of the reserved hole, then the sleeve 302 is moved outwards for a preset distance to enable the barb structure 307 to be in a tight pull-out resistant state and be solidified by glue injected in the reserved hole in advance (glue is injected in the reserved hole before the pull-out resistant device 300 is planted), and compared with the structure that the anchor similar to the barb structure 307 on the existing anchor bolt is just bounced and then solidified by the glue, the pull-out resistant device can provide a better pull-out resistant effect.

In a further embodiment, the locking assembly includes a locking member 309 and a hook 308 disposed on the barb structure 307, where the locking member 309 is slidably inserted into a sidewall of the sleeve 302, specifically, the sidewall of the sleeve 302 is provided with an installation cavity, the locking member 309 is inserted into the installation cavity and can slide along an axial direction of the sleeve 302 in the installation cavity, the initial locking member 309 is locked with the hook 308 to prevent the barb structure 307 from rotating and expanding to the outside of the sleeve 302, and the locking member 309 is separated from the hook 308 after moving a preset distance away from the wall to release the barb structure 307. The barb 307, when released, is capable of being pivoted outwardly through the release slot in the sidewall of the sleeve 302.

In a further embodiment, a middle clamping cylinder 303 is coaxially inserted between the sleeve 302 and the fastening screw 301, and the middle clamping cylinder 303, the sleeve 302 and the fastening screw 301 can slide relatively in the axial direction. The unlocking component comprises a trigger pressing block 304, wherein the trigger pressing block 304 is arranged at one end of the middle clamping cylinder 303 close to a wall, the trigger pressing block 304 is elastic, the trigger pressing block 304 acts on a clamping part 309, the trigger pressing block 304 is matched with one end of the sleeve 302 close to the wall in a stop mode, the sleeve 302 can move under the pushing of the sleeve 302, the sleeve 302 is inserted in place, the trigger pressing block 304 is abutted to the bottom of a reserved hole and extruded, the clamping part 309 is acted on to enable the clamping part 309 to move in the direction away from the wall, the clamping part 309 and a clamping hook 308 on the barb structure 307 are separated from the barb structure 307, and the barb structure 307 rotates outwards under the action of a torsion spring at the rotation center of the barb structure 307 to expand.

In one embodiment, the trigger pressing block 304 is connected to the locking member 309 through a guide rod, and after the sleeve 302 is inserted in place, the trigger pressing block 304 abuts against the bottom of the reserved hole and is pressed, so that the locking member 309 is pushed to move away from the wall. In other embodiments, the trigger pressing block 304 may be provided to have elasticity and a cavity (similar to an elastic balloon) inside, and an air duct may be provided to connect the cavity of the trigger pressing block 304 and the locking member 309, so that the locking member 309 is moved by air pressure. Of course, the unlocking component may also be configured in other structures, which are not described herein.

In a further embodiment, the adjusting assembly comprises a hinged telescopic plate 306, the hinged telescopic plate 306 can be telescopic at two ends, the end of one telescopic part of the hinged telescopic plate 306 is hinged with the fastening screw 301, the end of the other telescopic part of the hinged telescopic plate is hinged with the sleeve 302, and the middle of the fixed part of the hinged telescopic plate 306 is hinged with the middle clamping cylinder 303 close to the sleeve 302.

Initially, barb 307 and detent 309 are received within sleeve 302 and, when installed, pull out resistant device 300 is placed into a preformed hole in the wall, typically a hole sized slightly larger than the outer diameter of sleeve 302. As the pull-out resistant device 300 enters the preformed hole, when the trigger pressing block 304 touches the bottom of the preformed hole, the trigger pressing block 304 is pressed, so that the clamping piece 309 moves in a direction away from the wall, the movement of the clamping piece 309 causes the clamping hook 308 on the barb structure 307 to separate from the limit of the clamping piece 309, and the barb structure 307 pops up under the action of the torsion spring at the hinge point of the barb structure 307 and the sleeve 302 and abuts against the wall of the preformed hole. Afterwards, the fastening screw 301 is pushed towards the direction close to the wall, the hinged telescopic plate 306 is rotated and contracted (gradually becomes vertical) under the driving of the fastening screw 301, the sleeve 302 moves towards the direction far away from the wall (the preformed hole is pulled out) under the rotating action of the hinged telescopic plate 306, and at the moment, the barb structure 307 is ejected out to be abutted with the inner wall of the preformed hole, and the fastening screw 301 drives the barb structure 307 to move, so that the abutment between the barb structure 307 and the inner wall of the preformed hole is tighter, and the pulling-out effect is enhanced.

In a further embodiment, a sliding groove 305 is arranged on the sleeve 302, the sliding groove 305 is perpendicular to the axis of the sleeve 302, and a hinge point between the hinged telescopic plate 306 and the sleeve 302 is slidably arranged in the sliding groove 305; the barb structure 307 is provided with a stop plate, the stop plate is positioned at one end of the rotation center of the barb structure 307 and extends downwards, the stop plate is abutted with the hinged telescopic plate 306 to prevent the hinged point between the hinged telescopic plate 306 and the sleeve 302 from sliding along the sliding chute 305, the angle of the barb structure 307 rotating and expanding outwards of the sleeve 302 is positively correlated with the sliding distance of the hinged point between the hinged telescopic plate 306 and the sleeve 302 along the sliding chute 305, that is, the larger the angle of the barb structure 307 rotating and expanding outwards of the sleeve 302 is, the more the stop plate is far away from the hinged telescopic plate 306, and the longer the hinged point between the hinged telescopic plate 306 and the sleeve 302 slides along the sliding chute 305 is.

It will be appreciated that the pulling force required by the pulling apparatus 300 may vary somewhat from one stone slab 100 to another, depending on the material of the stone slab 100. The diameter of the preformed hole on the wall will be slightly larger than the diameter of the sleeve 302, so that the barb structure 307 has a space expanding towards the wall of the preformed hole, the barb structure 307 is abutted against the wall of the preformed hole after being expanded, the larger the preformed hole is, the larger the angle at which the barb structure 307 rotates, the more distant the baffle plate is from the hinged telescopic plate 306 (the smaller the portion of the baffle plate which can shield the chute 305 is, the larger the exposed length of the chute 305 is, the larger the usable range is), the farther the hinged joint of the hinged telescopic plate 306 and the sleeve 302 can move in the chute 305 (i.e. the longer the telescopic part of the hinged telescopic plate 306, which is close to one side of the sleeve 302, can extend), then after the barb structure 307 expands, the fastening screw 301 is pushed towards the wall direction, so that the hinged telescopic plate 306 rotates the same distance, the farther the hinged joint of the hinged telescopic plate 306 moves in the chute 305, the larger the distance the hinged telescopic plate 306 can push the sleeve 302, the larger the hinged joint of the hinged telescopic plate 306 moves, the larger the distance the hinged joint of the barb structure 307 and the wall, the larger the tensile strength between the barb structure and the sleeve 302 can provide the tensile strength of the pre-tightening device 100. Through the setting of the baffle on spout 305 and barb structure 307, only need slightly adjust the aperture size of wall preformed hole, just can make the tensile device 300 of pulling out of same model provide different pretightning force, enlarge the application scope of device, improve the practicality.

In a further embodiment, the barb structures 307 are arranged at least along the axial direction of the sleeve 302 at intervals, and the barb structures 307 in the same group are uniformly distributed along the circumferential direction of the sleeve 302, and the barb structures 307 in the multiple groups are staggered along the circumferential direction of the sleeve 302 to enhance the strength of the anti-drawing device 300. The locking piece 309 can lock all the barb structures 307 at the same time, in the application, the locking piece 309 is cylindrical and is slidably inserted into the sleeve 302, and a plurality of holes are correspondingly arranged on the locking piece 309, and one hole corresponds to one barb structure 307 so as to be clamped with the barb structure 307.

In one embodiment of the present application, two sets of barb structures 307 are provided, each set of two barb structures 307 are separately arranged at two ends of the sleeve 302, and an included angle between the two barb structures 307 is 90 degrees, that is, an included angle between two adjacent barb structures 307 in all directions along the circumference is 90 degrees.

In a further embodiment, a longitudinal long hole is formed in the hanging member 200, the fastening screw 301 is inserted into the longitudinal long hole and is connected with the hanging member 200 through a nut, the longitudinal long hole is formed to enable the connection between the hanging member 200 and the fastening screw 301 to be adjusted up and down, and a limit screw is arranged at the top of the hanging member 200 to limit the longitudinal displacement of the hanging member 200 and the fastening screw 301.

The hanging pieces 200 are connected with the stone slab 100 through anchor bolts or expansion bolts, and one stone slab 100 is mounted on a wall by using the two outer wall decoration stone dry hanging mounting structures.

The application also provides a construction method for dry-hanging the exterior wall decorative stone, which uses the installation structure for dry-hanging the exterior wall decorative stone, and the construction method for dry-hanging the exterior wall decorative stone specifically comprises the following steps:

s100, punching a reserved hole in a preset position of a wall;

s200, cleaning the reserved holes and injecting glue;

s300, inserting the pulling-resistant device 300 into the reserved hole, tightly connecting the pulling-resistant device with a wall after the pulling-resistant insertion is finished, and solidifying the glue injected into the reserved hole to finish the bar planting;

s400, connecting and fixing the hanging piece 200 and the stone slab 100;

s500, the stone slab 100 with the hanging piece 200 fixed thereon is connected and fixed with the corresponding pulling-out resistance device 300 in the horizontal direction and then in the longitudinal direction, for example, the stone slab 100 can be hung and installed from left to right and from bottom to top.

The upper and lower adjacent stone slabs 100 are inserted through the connecting pieces to enhance the connection reliability, the connecting pieces are of conventional structures in the prior art, the lower bottom surfaces of the stone slabs 100 are perforated and injected with glue, the connecting pieces of the adjacent two stone slabs 100 are clamped on the hanging pieces 200 of the lower stone slab 100, and the upper stone slab 100 is inserted into the connecting pieces through the glue injection holes on the bottom surfaces of the upper stone slab 100, so that the point hanging installation is completed to form a decorative wall surface.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the application.

Claims (10)

1. The utility model provides a mounting structure is hung futilely to outer wall face decoration stone material which characterized in that includes:

the pulling-resistant device comprises a sleeve and a fastening screw;

the sleeve is hinged with a barb structure, the barb structure always has a trend of rotating and expanding towards the outside of the sleeve, the initial barb structure is contained in the sleeve through a locking assembly, the sleeve is inserted into a reserved hole of a wall, and after the sleeve is inserted in place, the barb structure is unlocked and expands outwards under the action of an unlocking assembly, and then is abutted against the inner wall of the reserved hole;

the fastening screw is provided with a polish rod section and a thread section, the polish rod section of the fastening screw is coaxially inserted into the sleeve and can axially and relatively slide with the sleeve, the fastening screw is connected with the sleeve through an adjusting assembly, and the adjusting assembly is configured to enable the sleeve to move a preset distance to the outside of the wall under the action of the movement of the fastening screw to the wall after the barb structure is outwards expanded and is abutted against the wall, so that the abutting force between the barb structure and the inner wall of the reserved hole is increased;

and the upper end of the hanging piece is connected with the fastening screw, and the lower end of the hanging piece is connected with the stone plate so as to dry-hang the stone plate on the wall.

2. The dry hanging installation structure of the exterior wall decoration stone material according to claim 1, wherein the locking component comprises a locking piece and a clamping hook arranged on the barb structure, the locking piece is inserted into the side wall of the sleeve in a sliding manner, the initial locking piece is clamped with the clamping hook to prevent the barb structure from rotating and expanding to the outside of the sleeve, and the locking piece is separated from the clamping hook after moving a preset distance to a direction away from the wall to release the barb structure.

3. The dry hanging installation structure of the exterior wall decoration stone material according to claim 2, wherein a middle clamping cylinder is coaxially inserted between the sleeve and the fastening screw rod, and the middle clamping cylinder, the sleeve and the fastening screw rod can slide relatively along the axial direction;

the unlocking component comprises a triggering pressing block, the triggering pressing block is arranged at one end of the middle clamping cylinder close to the wall, the triggering pressing block is elastic, the triggering pressing block acts on the clamping piece, after the sleeve is inserted in place, the triggering pressing block abuts against the bottom of the reserved hole and is extruded, and then the clamping piece moves in a direction far away from the wall.

4. The dry hanging installation structure for the decorative stone on the outer wall surface according to claim 3, wherein the adjusting assembly comprises a hinged telescopic plate, the two ends of the hinged telescopic plate can be telescopic, the end part of one telescopic part of the hinged telescopic plate is hinged with the fastening screw, the end part of the other telescopic part of the hinged telescopic plate is hinged with the sleeve, and the middle of the fixed part of the hinged telescopic plate is close to the sleeve and is hinged with the middle clamping cylinder.

5. The dry hanging installation structure of the exterior wall decoration stone material according to claim 4, wherein a chute is arranged on the sleeve, and a hinge point between the hinged expansion plate and the sleeve is arranged in the chute in a sliding manner; the barb structure is provided with a baffle plate, the baffle plate can be abutted against the hinge point between the hinge expansion plate and the sleeve to slide along the sliding chute, and the angle of the barb structure for outwards rotating and expanding the sleeve is positively correlated with the sliding distance of the hinge point between the hinge expansion plate and the sleeve along the sliding chute.

6. The dry hanging installation structure of the exterior wall decorative stone material according to claim 1, wherein the barb structures are at least arranged in two groups at intervals along the axial direction of the sleeve, the barb structures in each group are uniformly distributed along the circumferential direction of the sleeve, and the barb structures in the plurality of groups are staggered along the circumferential direction of the sleeve.

7. The dry hanging installation structure of the exterior wall decoration stone material according to claim 6, wherein the barb structures are arranged in two groups, each group is two, the barb structures in two groups are respectively arranged at two ends of the sleeve, and an included angle between the barb structures in two groups is 90 degrees.

8. The dry hanging installation structure of the exterior wall decoration stone material according to claim 1, wherein the hanging piece is provided with a longitudinal long hole, the fastening screw is inserted in the longitudinal long hole and connected with the hanging piece through a nut, and the top of the hanging piece is provided with a limit screw.

9. The dry hanging installation structure for the decorative stone on the outer wall according to claim 1, wherein the hanging piece is connected with the stone slab through an anchor bolt.

10. An exterior wall decoration stone dry-hanging construction method is characterized in that the exterior wall decoration stone dry-hanging installation structure of any one of claims 1-9 is used, and the exterior wall decoration stone dry-hanging construction method comprises the following steps:

s100, punching a reserved hole in a preset position of a wall;

s200, cleaning the reserved holes and injecting glue;

s300, inserting the pulling-resistant device into the reserved hole;

s400, connecting and fixing the hanging piece with the stone plate;

s500, connecting and fixing the stone slab with the hanging piece fixed with the corresponding pulling-resistant device transversely and longitudinally.