CN218814442U - Fixing device for steel wire mesh of building - Google Patents

Abstract

The utility model discloses a fixing device for wire net of building. The outer wall of building heat preservation of mating formation, the anti-crack mortar layer of mating formation outside the heat preservation, this fixing device includes: an expansion screw; the heat-insulating layer pressure plate is detachably matched with the expansion screw and used for fixing the heat-insulating layer to the outer wall of the building; the steel wire mesh pressure plate is detachably matched with the expansion screw and used for clamping the steel wire mesh in the middle of the anti-crack mortar layer; and the spacing structure is arranged between the heat preservation laminated plate and the steel wire mesh pressed plate and used for clamping the steel wire mesh between the steel wire mesh pressed plate and the spacing structure. The utility model discloses a fixing device for wire net of building has reduction part quantity, and the simplified operation flow improves the installation effectiveness of wire net and the advantage of installation quality.

Description

Fixing device for steel wire mesh of building

Technical Field

The utility model belongs to the technical field of building energy conservation and specifically relates to a fixing device for wire net of building is related to.

Background

In recent years, under the strong promotion of national energy conservation and emission reduction policies, the heat-insulating layer paved on the outer wall of a building is widely applied. In order to improve the energy-saving coefficient of a building, reduce the heat and cold energy exchange between indoor and outdoor places and improve the thermal performance of a wall body, a heat-insulating layer is generally paved on the outer wall of the building.

In order to fix the insulation layer to the building outer wall, in addition to applying an adhesive to the insulation board, an expansion screw with a pressing plate is inserted through the insulation layer into a predetermined hole of the building outer wall to press and fix the insulation layer against the building outer wall.

After the heat-insulating layer is fixed on the outer wall of the building, an anti-crack mortar layer is made outside the heat-insulating layer, and tiling or coating is applied outside the anti-crack mortar layer. To ensure that the crack-resistant mortar layer does not easily break, the steel wire mesh is usually fixed in the middle of the crack-resistant mortar layer by fastening screws. Due to uneven force application, the depth of fastening screws screwed into the outer wall of a building is different, and the steel wire mesh is uneven.

Therefore, there is a need to develop a new type of fixing device for steel wire mesh.

SUMMERY OF THE UTILITY MODEL

In order to realize the aforementioned purpose, the utility model provides a fixing device for wire net of building, the heat preservation of mating formation of the outer wall of building, the anti mortar layer that splits of mating formation outside the heat preservation, fixing device includes:

an expansion screw;

the heat-insulating layer pressure plate is detachably matched with the expansion screw and used for fixing the heat-insulating layer to the outer wall of the building;

the steel wire mesh pressure plate is detachably matched with the expansion screw and used for clamping the steel wire mesh in the middle of the anti-crack mortar layer; and

and the spacing structure is arranged between the heat preservation laminated plate and the steel wire mesh pressed plate and used for clamping the steel wire mesh between the steel wire mesh pressed plate and the spacing structure.

According to the utility model discloses an embodiment, the expansion screw includes hollow expander roll, and the expander roll cooperates with heat preservation pressure disk detachably.

According to the utility model discloses an embodiment, the inflation screw still includes the nail that expands, and the nail that expands cooperates with wire net pressure disk detachably.

According to the utility model discloses an embodiment, interval structure is provided with the boss on the heat preservation pressure disk, can dismantle the center that complex shoulder hole runs through boss and heat preservation pressure disk with the expander roll.

According to the utility model discloses an embodiment is provided with a plurality of holes on the annular end face of boss.

According to the utility model discloses an embodiment, the region around the boss of heat preservation pressure disk is provided with a plurality of perforating holes.

According to the utility model discloses an embodiment, the wire net pressure disk is provided with and can dismantle complex shoulder hole with the nail that expands.

According to the utility model discloses an embodiment, interval structure is still including setting up the gasket between wire net pressure disk and boss for adjust the roughness of wire net.

According to an embodiment of the present invention, the gasket includes an insert rod insertable into at least one of the plurality of holes of the boss.

According to an embodiment of the present invention, the gasket further comprises holes corresponding to other holes of the plurality of holes of the boss.

The utility model discloses a fixing device for wire net of building can fix the heated board to the building outer wall, can fix the wire net in the middle of anti-crack mortar layer again, can also adjust the roughness of wire net simultaneously, has reduced part quantity from this, has simplified operation flow, has improved the installation effectiveness and the installation quality of wire net.

Drawings

Other aspects and advantages of the invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, illustrating by way of example the structure of the invention, wherein:

fig. 1 is a schematic structural diagram illustrating a steel wire mesh according to an embodiment of the application;

fig. 2A is an exploded structural view showing a shaped nylon expansion plug according to an embodiment of the present application; fig. 2B is a front view showing an expander roll of the shaped nylon expander pin according to an embodiment of the present application; FIG. 2C is a front view, a bottom view and a top view of an insulating layer platen showing a shaped nylon expansion plug according to an embodiment of the present application; FIG. 2D is a front and top view of a shim showing a shaped nylon expansion bolt according to an embodiment of the present application; fig. 2E is a front view and a top view of a steel mesh platen showing a shaped nylon expansion plug according to an embodiment of the present application; FIG. 2F is a front view of an expansion nail showing a profiled nylon expansion plug according to an embodiment of the present application;

fig. 3A is a structural sectional view showing that a steel wire mesh is fixed in the middle of an anti-crack mortar layer by using a special-shaped nylon expansion bolt and a paint layer is brushed outside the anti-crack mortar layer according to an embodiment of the application; FIG. 3B is a structural section view showing that a steel wire mesh is fixed in the middle of an anti-crack mortar layer by using a special-shaped nylon expansion bolt and tiles are attached outside the anti-crack mortar layer according to an embodiment of the application;

FIG. 4A is a block diagram illustrating another form of a wire mesh fixing kit in accordance with an embodiment of the present application; FIG. 4B is a block diagram illustrating yet another form of a wire mesh fixing kit in accordance with an embodiment of the present application; fig. 4C is a front, bottom, and left side view of a plastic splint of another form of steel mesh fixation assembly according to an embodiment of the present application.

FIG. 5 is a sectional structure view showing the installation of a profiled nylon expansion bolt at an external corner of a building according to an embodiment of the present application;

FIG. 6 is a cross-sectional view illustrating the external corner bead of FIG. 5 according to an embodiment of the present application;

fig. 7 is a cross-sectional structure diagram illustrating installation of a steel wire mesh fixing kit at double external corners of the external thermal insulation of the parapet of a building according to an embodiment of the application.

Fig. 8 is a cross-sectional view illustrating installation of a wire mesh fixing kit at a window opening of a building according to an embodiment of the present application.

FIG. 9 is a cross-sectional view illustrating the window opening frame of FIG. 8 according to an embodiment of the present application;

FIG. 10A is a schematic view showing the installation of a small pressure plate and a profiled nylon expansion bolt according to an embodiment of the present application; fig. 10B is a front view showing an expander rod of the shaped nylon expander pin according to an embodiment of the present application; FIG. 10C is a front view, a bottom view and a top view of an insulating layer platen showing a shaped nylon expansion plug according to an embodiment of the present application; FIG. 10G is a front and top view showing a small platen according to an embodiment of the present application;

description of the symbols

1. Steel wire mesh;

2. a special-shaped nylon expansion bolt;

2a, an expansion rod;

2b, a heat-insulating layer pressure plate;

2c, a gasket;

2d, pressing a steel wire mesh plate;

2e, expanding the nail;

2f, a small pressure plate;

3. a heat-insulating layer;

4. an anti-crack mortar layer;

5. fixing the external member by a steel wire mesh;

5a, plastic splints;

5b, a small screw;

5c, a small screw rod;

5d, a small nut;

6. an external corner protection frame;

7. a window opening protecting frame;

8. a glass fiber web;

Detailed Description

Features of various aspects and exemplary embodiments of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.

The following description is given with the directional terms as they are used in the drawings and not intended to limit the specific structure of the present application. In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected. The specific meaning of the above terms in the present application can be understood as appropriate by one of ordinary skill in the art.

For better understanding of the present application, a fixing device for a steel wire mesh of a building and an installation method thereof according to an embodiment of the present application will be described in detail with reference to fig. 1 to 10G.

Generally, an anti-crack mortar layer is paved outside the thermal insulation layer of a building, and then a coating or a tile is painted outside the anti-crack mortar layer. In order to increase the strength of the anti-crack mortar layer, the steel wire mesh is fixed in the middle of the anti-crack mortar layer. Figure 1 shows a hot galvanized steel wire mesh 1 with a pitch of 11mmx11mm and a thickness of 0.9mm.

As shown in fig. 2A-2F, fig. 2A is an exploded structural view illustrating a deformed nylon expansion bolt according to an embodiment of the present application; fig. 2B is a front view showing an expander roll of the shaped nylon expander pin according to an embodiment of the present application; FIG. 2C is a front view, a bottom view and a top view of a heat-insulating platen showing a profiled nylon expansion plug according to an embodiment of the present application; FIG. 2D is a front and top view of a shim showing a shaped nylon expansion bolt according to an embodiment of the present application; fig. 2E is a front and top view of a steel wire mesh platen showing a shaped nylon expansion plug according to an embodiment of the present application; fig. 2F is a front view of an expansion nail showing a shaped nylon expansion bolt according to an embodiment of the present application.

As shown in fig. 2A, the special-shaped nylon expansion bolt 2 includes an expansion rod 2A, a heat-insulating layer pressure plate 2b, a gasket 2c, a steel wire mesh pressure plate 2d and an expansion nail 2e. The steel wire mesh 1 is clamped between the steel wire mesh pressing plate 2d and the gasket 2 c.

As shown in fig. 2B, the expander rod 2a is a hollow sleeve. The tail end of the expansion rod 2a is provided with an opening seam. When the expansion nail 2e is screwed into the cavity of the expansion rod 2a, the inner wall of the expansion rod 2a is axially extruded by the expansion nail 2e, and the tail end of the expansion rod 2a, which forms an opening seam, can only be outwards expanded to form a drum shape, so that the special-shaped nylon expansion bolt 2 is promoted to be expanded and fixed in a wall body.

The expansion rod 2a is made of high-strength heat-insulating nylon. The expansion rod 2a is sleeved on the expansion nail 2e, so that a broken bridge between the outer wall and the expansion nail 2e can be isolated, and heat conduction is prevented. The expansion rod 2a can be selected to have different lengths according to the length of the expansion nail or the thickness of the heat-insulating layer.

In addition, the outer surface of the expansion rod 2a is provided with a strip-shaped protruding part or an annular protruding part, so that the friction force between the expansion rod 2a and a wall body can be increased, and the fixing effect is enhanced.

In addition, the other end of the expansion rod 2a, at which the opening seam is not formed, is provided with a flange that is fitted with the insulating layer platen 2 b.

As shown in fig. 2C, the insulating layer platen 2b has a disk shape. As shown in fig. 2C, the insulating layer platen 2b has a diameter of 60mm. The lower side surface of the heat preservation layer pressure plate 2b is provided with a lower boss, and the upper side surface of the heat preservation layer pressure plate 2b is provided with an upper boss. The centers of the upper boss and the lower boss form a stepped hole penetrating through the upper boss and the lower boss, and the flange of the expansion rod 2a is detachably matched with the stepped hole. Eight holes are formed on the annular end surface of the upper boss and are distributed at equal intervals. The insulating layer platen 2b is also formed with a plurality of through holes around the periphery of the upper boss. The plurality of through holes are formed so that the anti-crack mortar on the upper surface and the anti-crack mortar on the lower surface of the insulating layer pressure plate 2b are penetrated through the plurality of through holes to be integrated, thereby increasing the overall strength of the anti-crack mortar layer.

As shown in fig. 2D, the spacer 2c has a ring shape with a spacer diameter of 25mm. Six holes and two circular insertion rods extending perpendicularly to the annular end surface are formed on the annular end surface of the spacer 2 c. The two insert rods are oppositely disposed with respect to the center of the spacer. The diameters and positions of the six holes and the two insertion rods are the same as those of the eight holes in the annular end surface of the upper boss of the insulating layer pressure plate 2b, except that the two insertion rods are oppositely arranged relative to the center of the gasket. When the insulating layer pressing plate 2b is installed, the gasket 2c is matched with the upper boss by inserting the two inserting rods into the two corresponding holes in the annular end face of the upper boss, and meanwhile, six holes of the gasket 2c are aligned with the other six corresponding holes in the eight holes in the annular end face of the insulating layer pressing plate 2 b.

When a plurality of spacers are used, for example, when a first spacer and a second spacer are used, the first spacer is engaged with the upper boss by the insertion rod of the first spacer being inserted into the hole of the upper boss, and then the second spacer is engaged with the first spacer by the insertion rod of the second spacer being inserted into the hole of the first spacer.

When the device is installed, due to uneven force application, the depth of the expansion rod 2a driven into the outer wall of a building is different, and the steel wire mesh 1 pressed on the heat insulation layer pressure plate 2b is uneven. In the present application, one or more spacers 2c are used to adjust the flatness of the wire mesh 1. The gasket 2c is formed with two insertion rods and six holes which are oppositely arranged relative to the center of the gasket, and the gasket 2c is inserted into the corresponding hole of the upper boss of the heat-insulating layer pressure plate 2b through the insertion rods so as to make up the unevenness of the upper boss of the heat-insulating layer pressure plate 2 b.

As shown in fig. 2E, the wire mesh platen 2E is disk-shaped. The middle of the disk is provided with a stepped hole which runs through the disk. As shown in fig. 2E, the diameter of the steel wire mesh pressing plate 2E is 25mm, the thickness thereof is 6mm, and the diameter of the small hole of the stepped hole is 7mm.

As shown in fig. 2F, an external thread is formed at one end of the expansion nail 2e, and a flange having a straight groove is provided at the other end of the expansion nail 2e, and the flange is detachably engaged with the stepped hole of the steel wire mesh pressure plate 2 d.

As shown in fig. 2A, when the special-shaped nylon expansion bolt 2 is installed, the expansion nail 2e sequentially penetrates through the steel wire mesh pressure plate 2d, the steel wire mesh 1, the gasket 2c and the heat insulation layer pressure plate 2b and enters the expansion rod 2A. The steel wire mesh 1 is clamped between the steel wire mesh pressing plate 2d and the gasket 2 c.

Fig. 3A is a structural sectional view showing that a steel wire mesh is fixed in the middle of an anti-crack mortar layer by using a special-shaped nylon expansion bolt and a paint layer is brushed outside the anti-crack mortar layer according to an embodiment of the application; fig. 3B is a cross-sectional view illustrating a structure in which a steel wire mesh is fixed in the middle of an anti-crack mortar layer by using a nylon expansion bolt having a different shape and bricks are attached outside the anti-crack mortar layer according to an embodiment of the present disclosure. As shown in fig. 3A and 3B, after the special-shaped nylon expansion bolt 2 is installed, the heat-insulating layer pressure plate 2B is pressed on the heat-insulating layer 3, the steel wire mesh 1 is clamped between the steel wire mesh pressure plate 2B and the gasket 2c, the steel wire mesh 1 is ensured to be arranged in the middle of the anti-crack mortar layer 4, and the coating layer and the tiling are brushed outside the anti-crack mortar layer 4. When the special-shaped nylon expansion bolt 2 is installed, the expansion nail 2e is screwed to enable the steel wire mesh 1 to be positioned on a horizontal plane with the same distance from the heat preservation layer 3, then the anti-crack mortar layer 4 is smeared to ensure that the steel wire mesh 1 is positioned in the middle of the anti-crack mortar layer 4, so that the strength of the anti-crack mortar layer 4 is greatly enhanced, and the heat preservation life of the heat preservation layer 3 is prolonged.

From this, heterotypic nylon expansion bolt 2 is through pressing the heat preservation on heat preservation pressure disk and fixing at the building outer wall, and heterotypic nylon expansion bolt 2 still guarantees through the wire net pressure disk that the wire net centre gripping is in the centre on anti-crack mortar layer to adjust the roughness of wire net through the gasket. The fixing of the heat-insulating layer and the steel wire mesh and the leveling of the steel wire mesh are realized by using one device, so that the number of parts is reduced, the installation process is simplified, and the installation efficiency and the installation quality of the steel wire mesh are improved.

In the application, 5-8 special-shaped nylon expansion bolts 2 can be uniformly driven into each square meter of the heat-insulating layer. In the present application, the insulating layer is laid in a grid-like frame formed by vertically connecting a plurality of square pipes to each other. For example, a plurality of square pipes extend in a vertical direction and are vertically fixed to the outer wall of the building. The plurality of square pipes are respectively connected to the plurality of vertically installed square pipes perpendicularly to the plurality of vertically installed square pipes along a horizontal direction to form a grid-shaped square frame with the plurality of vertically installed square pipes. And laying an insulating layer in the square frame to insulate the outer wall of the building, and fixing the insulating layer to the outer wall of the building by the special-shaped nylon expansion bolts.

Fig. 4A, 4B and 4C show a steel wire mesh fixing kit according to an embodiment of the present application, for adjusting the distance between the steel wire mesh and the profile and the flatness of the steel wire mesh. As shown in fig. 4A and 4C, the steel wire mesh fixing kit of fig. 4A is composed of two plastic clamping plates 5a and small screws 5 b. The two plastic clamping plates can be closed up and down and are provided with a through hole. When the thermal insulation layer is installed, the steel wire mesh is clamped by the two plastic clamping plates, the small screws are placed into the through holes of the two plastic clamping plates and are tapped into the vertically installed square pipe, the window opening protection frame and the external corner protection frame, the small screws are screwed and adjusted, the distance between the steel wire mesh and the thermal insulation layer is kept consistent, then the anti-crack mortar layer is smeared, and the steel wire mesh is ensured to be in the middle of the anti-crack mortar layer. The steel wire mesh fixing kit of fig. 4B is composed of two plastic clamping plates 5a, a small screw 5c and a small nut 5 d.

FIG. 5 is a sectional structure view showing the installation of a profiled nylon expansion bolt at an external corner of a building according to an embodiment of the present application; FIG. 6 is a cross-sectional view illustrating the external corner bead of FIG. 5 according to an embodiment of the present application; fig. 7 is a cross-sectional structure diagram illustrating installation of a steel wire mesh fixing kit at double external corners of the external thermal insulation of the parapet of a building according to an embodiment of the application.

As shown in fig. 5, the special-shaped nylon expansion bolt 2 fixes the heat-insulating layer 3 in the outer wall of the building, and clamps the steel wire mesh 1 in the middle of the anti-crack mortar layer 4. In order to prevent the external corner from leaking water and prevent water from permeating into the heat-insulating layer, an external corner protection frame 6 is arranged outside the heat-insulating layer of the external corner, and the external corner protection frame 6 is arranged between the steel wire mesh 1 and the gasket. In addition, can adjust the distance between wire net 1 and the external corner protective frame 6 with the fixed external member of wire net 5, and then adjust wire net 1's roughness.

As shown in fig. 6, two sides of the right angle of the external corner protection frame 6 are respectively provided with a groove for accommodating the steel wire mesh fixing sleeve 5 for clamping the steel wire mesh 1 so as to reduce the thickness of the anti-crack mortar layer.

As shown in fig. 7, after the heat preservation layer is paved at the double external corners of the external heat preservation parapet wall, the external corner protection frame 6 is additionally arranged at the double external corners, then the steel wire mesh 1 is installed, the steel wire mesh 1 is clamped by the steel wire mesh fixing sleeve 5, the small screw of the steel wire mesh fixing sleeve 5 is screwed in, the flatness of the steel wire mesh 1 is adjusted, and then the anti-crack mortar layer 4 is smeared.

Fig. 8 is a cross-sectional view illustrating installation of a wire mesh fixing kit at a window opening of a building according to an embodiment of the present application. Fig. 9 is a sectional view of the window hole guard of fig. 8. As shown in fig. 9, the window opening protection frame 7 is L-shaped, one side is a double-layer long-depth profile, and the other side is a single-layer protection plate. As shown in fig. 8, in order to prevent the windowsill from leaking water and prevent water from permeating into the heat insulation layer, a window opening protection frame 7 is installed on the windowsill, then a steel wire mesh 1 is installed, the steel wire mesh 1 is clamped by a steel wire mesh fixing sleeve 5, the flatness of the steel wire mesh 1 is adjusted, then an anti-crack mortar layer 4 is smeared, and the steel wire mesh 1 is ensured to be in the middle of the anti-crack mortar layer 4.

As shown in fig. 10A, 10B, 10C, and 10G, fig. 10A is a schematic view showing the installation of a small platen and a shaped nylon expansion bolt according to an embodiment of the present application, and fig. 10G is a front view and a plan view showing the small platen according to the embodiment of the present application. As shown in fig. 10A, a glass fiber web 8 is laid on the outside of the insulation layer. The insulating layer pressure plate 2b of the special-shaped nylon expansion bolt is pressed against the glass fiber net 8. Then a layer of thin anti-crack mortar with the thickness of about 6-8 mm is smeared.

As shown in fig. 10G, the small platen 2f has a disk shape with a diameter substantially corresponding to that of the spacer 2c having two insert pins and 6 holes, but with a slight increase in thickness of about 1.5 times the thickness of the spacer 2 c. One end face of the small pressure plate 2f is formed with four insertion rods extending perpendicularly to the end face. Four insertion rods are formed on one end face of the spacer 2f at equal intervals in the circumferential direction and are inserted into corresponding holes in the annular end face of the upper boss of the insulating layer pressure plate 2b when mounted. The end face of the small pressure plate 2f is not provided with a hole, the middle of the small pressure plate 2f is also not provided with a large round hole, the main function is that after the glass fiber net 8 is arranged outside the heat-insulating layer, the heat-insulating layer pressure plate 2b of the special-shaped nylon expansion bolt is screwed in, four inserting rods of the small pressure plate 2f are inserted into corresponding holes on the upper boss of the heat-insulating layer pressure plate 2b, and when the first layer of thin anti-crack mortar with the thickness of about 6-8 mm is smeared, the mortar can be prevented from entering the special-shaped nylon expansion bolt.

And then, when thick mortar with a second layer of steel wire gauze is manufactured, the small pressing plate 2f is removed, the steel wire gauze is leveled by using a gasket 2c with two inserted rods and is arranged in the middle of the thick anti-crack mortar, then a steel wire gauze pressing plate 2d provided with a special-shaped nylon expansion bolt is screwed in the expansion nail 2e, and then the 12-14 mm thick anti-crack mortar is smeared, so that the thickness of the anti-crack mortar of the heat-insulating layer is not less than 20mm. The strength and the thickness of the anti-crack mortar layer are ensured through the two nets, namely the glass fiber net 8 and the steel wire net 1.

In comparison to fig. 1, fig. 10A adds a layer of glass fiber web 8 and thin crack resistant mortar only on the outside of the insulation layer. When the special-shaped nylon expansion bolt 2 is installed, in order to prevent the first layer of thin anti-crack mortar from blocking the hole site of the special-shaped nylon expansion bolt 2, the small pressure plate 2f is installed temporarily, after the first layer of thin anti-crack mortar is dried, the small pressure plate 2f is buckled and thrown away, then the second layer of thick anti-crack mortar with the steel wire mesh is made, so that the two layers of mortar are expanded by the common special-shaped nylon, and the nylon expansion bolt and the labor cost are greatly saved.

In addition, the external wall external thermal insulation made by only making a glass fiber net once and then adding 6-8 mm of thin anti-crack mortar can use a standard nylon expansion bolt, but the corner protection treatment is needed at the positions of parapet walls, external corners, external windows and doors and the like where rain and snow are easy to leak.

A method of using the fixation device of the embodiments of the present application is described below. The method is used for maintaining the old heat-insulating wall of the old building and brushing paint or stone paint imitation bricks on the outer wall surface. The outer wall of the old building is provided with an old outer heat-insulating layer with the thickness of 80 mm. Due to the fact that the external heat insulation and the external wall bricks fall off seriously, car crashing and people injury happen frequently, and overall maintenance is conducted at present. The method comprises the following steps:

the outer anti-crack mortar, the outer steel wire mesh and the outer wall bricks of the old heat-insulating wall are firstly removed, and then a plurality of grooves with the width of 60mm and the depth of 80mm are vertically formed on the original outer heat-insulating layer with the thickness of 80mm of the outer wall until the concrete wall surface is exposed. The vertical grooves are spaced apart by 1200 mm. Then, a groove 60mm wide and 80mm deep is transversely opened on each layer.

And (3) installing M12x120mm hot-dip galvanized steel expansion bolts every 600mm along the vertical grooves, and vertically fixing the square pipes in the vertical grooves of the outer wall surface. Along horizontal recess, put into a plurality of square pipes for these a plurality of square pipes are connected with a plurality of vertical installation's square pipe is perpendicular respectively. In addition, the installation gasket ensures the vertical straightness of the square pipe of vertical installation on the wall.

The square pipes are mutually and vertically connected to form a groined square frame structure, so that the original large-area heat-insulating layer is divided into small rectangular blocks. And a 20mm thick heat-insulating particle layer is arranged on the small square heat-insulating layer to compensate the heat loss of the hollow pipe of the square pipe, so that the total thickness of the heat-insulating layer is changed from 80mm to 100mm.

Then, holes are drilled in the heat insulation layer, the heat insulation layer pressure plate 2a shown in figure 2C is sleeved on the expansion rod 2a shown in figure 2B, and the expansion rod 2a is driven into the wall. Because of the different depths of the expansion rods 2a driven into the wall, the gasket 2c shown in figure 2D is installed, the outer surface of the gasket 2c protrudes out of the heat insulation layer by about 8mm, then the steel wire mesh is paved, the steel wire mesh pressing plate 2D shown in figure 2E is installed on the steel wire mesh, and then the expansion nails 2E shown in figure 2F are screwed on to ensure that the steel wire mesh is flat. Then, an anti-crack mortar layer with the thickness of 15-18 mm is smeared, so that the steel wire mesh is ensured to be flat and is arranged in the middle of the anti-crack mortar layer. 5-8 special-shaped nylon expansion bolts can be uniformly arranged on each square meter according to different heights.

In addition, a steel wire mesh fixing external member capable of adjusting the flatness of the steel wire mesh is screwed into the square pipe which is vertically installed. The external corner protective frame is added at the external corner of the external wall and the parapet heat-insulating layer frequently trampled on the roof to prevent water leakage of the roof. The window opening protection frame is installed at the opening position of the outer window, a steel wire mesh is installed on the window opening protection frame, the steel wire mesh is leveled by using a steel wire mesh suite, the distance between the steel wire mesh and the surfaces of the vertically installed square tube, the vertically installed external corner protection frame and the vertically installed window opening protection frame is about 8mm, and all the steel wire meshes are arranged in the middle of the anti-crack mortar layer to enhance the strength of the anti-crack mortar layer.

And finally, coating or making a real stone paint imitation ceramic tile surface layer outside the anti-crack mortar layer.

The utility model discloses a fixing device has following advantage:

1. the heat-insulating layer is fixed to the outer wall of the building through the heat-insulating layer pressing plate of the fixing device, so that the heat-insulating layer is more stable and firm.

2. The steel wire mesh is fixed in the middle of the anti-crack mortar through the steel wire mesh pressing plate of the fixing device, so that the anti-crack performance of the anti-crack mortar layer is greatly improved, and the service life of the heat insulation layer is prolonged.

3. The flatness of all the steel wire meshes is adjusted through the gaskets of the fixing device, and all the steel wire meshes are ensured to be arranged in the middle of the anti-crack mortar layer.

4. The fixing of the heat-insulating layer and the steel wire mesh and the leveling of the steel wire mesh are realized by using one device, so that the number of parts is reduced, the installation process is simplified, and the installation efficiency and the installation quality of the steel wire mesh are improved.

In this application, these embodiments, as mentioned above, are not intended to describe all the details, nor to limit the invention of this application to the specific embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application and its various modifications as are suited to the particular use contemplated. The application is limited only by the claims and their full scope and equivalents.

Claims (10)

1. The utility model provides a fixing device for wire net of building, the outer wall of building mating formation heat preservation the anti mortar layer that splits of mating formation outside the heat preservation, fixing device includes:

an expansion screw;

a heat insulation layer pressure plate detachably fitted with the expansion screw and used to fix the heat insulation layer to an outer wall of a building;

the steel wire mesh pressing plate is detachably matched with the expansion screw and used for clamping a steel wire mesh in the middle of the anti-crack mortar layer; and

and the spacing structure is arranged between the heat preservation layer pressure plate and the steel wire mesh pressure plate and used for clamping the steel wire mesh between the steel wire mesh pressure plate and the spacing structure.

2. The fixture of claim 1, wherein the expansion screw comprises a hollow expander bar that removably engages the insulation platen.

3. The fixture of claim 2, wherein the expansion screw further comprises an expansion pin removably mated with the wire mesh platen.

4. The fixing device of claim 2, wherein the spacing structure is provided with a boss on the insulating layer pressure plate, and a stepped hole detachably matched with the expansion rod penetrates through the boss and the center of the insulating layer pressure plate.

5. A fixation device according to claim 4, wherein the annular end surface of the boss is provided with a plurality of holes.

6. The fixing device according to claim 4, wherein a plurality of through holes are provided in a region of the insulation platen surrounding the boss.

7. The fixing device of claim 3, wherein the steel wire mesh pressure plate is provided with a stepped hole detachably matched with the expansion nail.

8. The fixture according to claim 5, wherein the spacer structure further comprises a spacer disposed between the wire mesh platen and the boss for adjusting the flatness of the wire mesh.

9. The fixture according to claim 8 wherein said spacer includes a plunger insertable into at least one of said plurality of apertures of said boss.

10. The fixture of claim 9, wherein the shim further comprises holes corresponding to other ones of the plurality of holes of the boss.

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