CN216380028U

CN216380028U - Metal enhancement mode connecting piece and wall structure

Info

Publication number: CN216380028U
Application number: CN202122656519.3U
Authority: CN
Inventors: 崔志先; 乔秀奇
Original assignee: Shandong Ruilu Electromechanical Equipment Co ltd
Current assignee: Shandong Ruilu Electromechanical Equipment Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-04-26
Anticipated expiration: 2031-11-02

Abstract

The utility model provides a metal reinforced connecting piece and a wall structure, relating to the technical field of building energy conservation and heat preservation, and adopting the following scheme: the metal enhancement mode connecting piece includes expanded metal sleeve pipe, metal core bar and tightening piece, and the front end of metal core bar is provided with blocks the head, blocks first wide than the metal core bar, and expanded metal sleeve pipe cover is on the metal core bar, blocks the head and can block expanded metal sleeve pipe, is provided with the external screw thread on the metal core bar, and tightening piece threaded connection is to metal core bar, and tightening piece is located expanded metal sleeve pipe's rear. The wall structure comprises a base layer wall body, an insulation board and a steel wire mesh, wherein the metal reinforced connecting piece stretches into the wall penetrating bolt hole to be expanded so as to anchor the insulation board on the base layer wall body, and the steel wire mesh is arranged on the metal core rod through a pressing piece. The steel wire mesh, the steel expansion bolts, the outer side heat insulation mortar leveling layer, the heat insulation outer formwork and the base wall are reliably connected.

Description

Metal enhancement mode connecting piece and wall structure

Technical Field

The utility model relates to the field of building energy conservation and heat preservation, in particular to a metal reinforced connecting piece and a wall structure.

Background

The insulation board is usually anchored to a wall body by using a connecting piece in the installation process of the insulation board so as to enhance the firmness of connection with the wall body.

At present, the current conventional method is to punch on the heated board now usually, then wear the connecting piece, and the one end of connecting piece stretches into the pouring cavity that both sides template formed, then pours the concrete, and the part that the connecting piece stretched into the cavity is poured into the concrete, and the concrete curing forms the wall body, realizes being connected of heated board and wall body. The connecting pieces are mostly made of engineering plastics, nylon and nylon metal combination materials, and are low in strength, and poor in durability and stability. Moreover, a large number of holes are punched in the insulation board, so that the construction is complicated, the efficiency is low, the structural stability of the insulation board is influenced, and the quality hidden danger is easily caused. In addition, the thickness of the non-combustible mortar layer on the outer side of the heat-insulating layer is increased along with the increasing of the fire-proof requirement of the building, and for the heat-insulating material with the fire-proof grade of B1, the thickness of the non-combustible mortar layer on the outer side of the heat-insulating layer is required to reach 50mm in the high-rise building. The increase of the thickness of the mortar layer of the non-combustible material on the outer side inevitably increases the risk that the mortar layer of the non-combustible material on the outer side of the heat preservation layer and the heat preservation layer fall off due to the influence of the self weight and the tensile strength. This is the current state of the art.

Therefore, in view of the current situation of the prior art, it is an urgent need to develop a metal reinforced connecting member and a wall structure.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a metal reinforced connecting piece and a wall structure, and aims to solve the problems that the existing connecting piece is poor in durability and stability, the connection firmness of a heat insulation board and a wall body is poor, and the heat insulation board has potential quality hazards due to punching.

On one hand, the utility model provides a metal reinforced connecting piece, which adopts the following scheme: the metal core rod comprises an expansion metal sleeve, a metal core rod and a tightening piece, wherein a blocking head is arranged at the front end of the metal core rod, the blocking head is wider than the metal core rod, the expansion metal sleeve is sleeved on the metal core rod, the blocking head can block the expansion metal sleeve, an external thread is arranged on the metal core rod, the tightening piece is in threaded connection with the metal core rod, the tightening piece is located behind the expansion metal sleeve, and the expansion metal sleeve can be moved forwards to abut against the blocking head by rotating the tightening piece forwards. The combined connecting piece is convenient to disassemble and assemble, the structural stability of the combined connecting piece is greatly enhanced by utilizing metal materials, and the shearing resistance is improved.

Furthermore, an expansion gap is arranged on the outer wall of the front end of the expansion metal sleeve.

Further, the expansion joint has a plurality of expansion joints and is arranged at intervals around the central axis of the expansion metal casing. Through setting up the expansion joint, impel the expanded metal sleeve pipe forward through exerting oneself, make its front end block on stopping the head so that expand smoothly.

Further, the tightening piece comprises a gasket and a nut, the gasket and the nut are installed on the metal core rod, and the gasket is located between the expansion metal sleeve and the nut. To facilitate the advancement of the expanded metal tube by screwing the nut.

Furthermore, the blocking head is in a shape of a circular truncated cone with a wide front part and a narrow back part or in a cylindrical shape. Of course, the shape is not limited to these two shapes, so long as the cross-section or outer diameter or width of the stopper is greater than that of the metallic core rod to achieve the stopper effect.

Furthermore, the expanded metal sleeve and the metal core rod are made of steel.

On the other hand, the utility model also provides a wall structure which comprises a base wall, an insulation board and the metal reinforced connecting piece, wherein the expansion metal sleeve and the metal core rod penetrate through the insulation board and extend into the base wall, the tightening piece is positioned on the outer side of the insulation board, the gasket is stressed and blocked by screwing the nut and abuts against the outer surface of the insulation board, the connection strength of the insulation board and the base wall is enhanced, and the leveling layer and the plastering layer are arranged on the outer side of the insulation board.

Furthermore, the part of the metal core rod extending into the wall body is more than 6 cm.

Further, the outer side of the heat insulation board is provided with a steel wire mesh, the steel wire mesh is installed on the metal core rod through a pressing piece, and the pressing piece presses the steel wire mesh on the tightening piece.

Further, the pressing piece comprises a clamping piece and a nut, the rear portion of the metal core rod penetrates through the steel wire mesh, the pressing piece is installed on the metal core rod, the steel wire mesh is located between the pressing piece and the tightening piece, and the clamping piece blocks and fixes the steel wire mesh from the outer side.

Furthermore, wall through bolt holes are formed in the base wall body and the heat insulation plate, and the metal reinforced connecting piece is installed in the wall through bolt holes. After penetrating, the gasket is pressed in, the nut is screwed to expand the expansion metal sleeve, the expansion metal sleeve and the remained wall-through bolt hole are extruded and stressed, meanwhile, the gasket is stressed to block and abut against the outer surface of the heat insulation plate, the combined action is achieved, the part of the gasket extending into the concrete is larger than 6cm, a steel wire mesh is installed, the transverse wires are lapped on the exposed metal core rod, the steel clamping piece is sleeved in the transverse wires to buckle the steel wire mesh, and the nut is screwed in to tightly press the steel wire mesh.

Furthermore, the part of the metal core rod exposed outside the heat insulation plate is less than 2 cm. The distance between the steel wire mesh and the heat preservation plate is preferably 1 cm. The heated board outside is touched in layers and is pressed the mortar of making level of premixing, and the mortar of making level that compresses tightly piece and wire net fixed point go out should touch and press the compactness, prevents the hollowing, and the screed-coat surface is in construction plastering mortar, impresses into plastering mortar with the spacing net cloth of alkali-resisting.

Further, the heat insulation board can be an original board, namely an extruded sheet, a polystyrene board and a rock wool board; also can be composite insulation board, preferred in this scheme is composite insulation board, including the heat preservation, the both sides of heat preservation set up enhancement layer or inoxidizing coating. Furthermore, the heat preservation exterior formwork connecting piece and the wall structure patent which are reported by the applicant in the scheme are used, the patent application number is 2021210941416, namely, the RL heat preservation exterior formwork, when the exterior formwork with the length of 3000mm and the width of 600mm is used, the connecting pieces on the exterior formwork are arranged in a mode that one connecting piece and two connecting pieces are staggered in the length direction, one connecting piece is positioned in the middle of the exterior formwork, and the two connecting pieces are positioned at the edges, close to two sides, of the exterior formwork.

According to the technical scheme, the utility model has the following advantages:

1. by using the steel expansion bolt (namely the combination of the expansion metal sleeve and the metal core rod), the outer side of the insulation board is blocked by the steel gasket, so that the connection reliability of the insulation board and the base wall is greatly enhanced.

2. The expansion bolts, the gaskets, the nuts, the clamping pieces and other accessories are all made of metal steel materials, the strength is higher than that of a connecting piece formed by combining common engineering plastics, nylon and nylon metal, and the durability and the stability are better.

3. Utilize the template to strut the construction stay and install the split bolt hole, the specification and the wall bolt hole phase-match of steel expansion bolts have saved the process of punching, reduce the quantity of punching of heat preservation exterior sheathing, avoid appearing in the link of punching because of the not quality hidden danger that leads to the fact in place of the degree of depth, have subtracted outside shutoff hole process simultaneously, and material saving cost plays and packs the effect of wall bolt hole and reinforcing heat preservation exterior sheathing and cast in situ reinforced concrete connection reliability.

4. The heat-insulating plate is preferably an RL heat-insulating outer formwork and comprises a heat-insulating layer, an inner bonding enhancement layer, an outer bonding enhancement layer, a heat-insulating transition layer and an anti-cracking mortar layer, wherein a groove is formed in the inner side of the heat-insulating layer, the inner bonding enhancement layer is positioned in the inner side of the heat-insulating layer and covers the groove, the thickness of the inner bonding enhancement layer is smaller than the depth of the groove, the outer bonding enhancement layer is arranged on the outer side of the heat-insulating layer, the heat-insulating transition layer is arranged on the outer side of the outer bonding enhancement layer, and the mortar layer is arranged on the outer side of the heat-insulating transition layer. The structure can obviously enhance the bonding strength between the heat-insulating layer and the base concrete structure or the heat-insulating transition layer, so that the bonding strength of the whole system is stronger and firmer. The inner and outer bonding reinforcement layers are two-component cement mortar interface agent, so that the organic heat-insulating material, the inorganic concrete and the mortar material can be effectively bonded together in a tight and natural high-strength manner, and the bonding strength between the organic heat-insulating material and the inorganic concrete and the mortar material is greatly enhanced.

5. The special steel wire mesh is tightly and firmly combined with the steel expansion bolt through the special rigid clamping sheet and the nut to form a uniform grid structure system, and the special rigid clamping sheet is matched with the grid spacing of the steel wire mesh, so that the stability and the connection reliability of the whole steel wire mesh are ensured.

6. Because of the requirement of fire prevention standard, when the extruded sheet is adopted as the heat insulation material, the whole non-combustible material at the outer side of the heat insulation layer is not less than 50mm, the non-combustible material, namely the thickness of the mortar layer at the outer side is increased, and the quality hidden troubles such as the falling of the mortar layer at the outer side and the like are inevitably generated due to the self gravity and the performance of the mortar layer, at the moment, the steel wire mesh is positioned in the heat insulation mortar structural layer at the outer side of the heat insulation outer template, so that the steel wire mesh, the steel expansion bolt, the outer side heat insulation mortar leveling layer, the heat insulation outer template and the base layer concrete (base layer wall body) are reliably connected, the binding force between the base concrete and the thermal insulation external template and between the thermal insulation board and the thermal insulation mortar leveling layer is enhanced, the anti-shearing force is improved, the structure is more stable, the heat-insulating layer, the non-combustible material mortar layer and the decorative layer on the outer side of the heat-insulating layer are not easy to fall off, and the overall structural strength of the wall body is improved.

7. The combined fastening mode of the specially-made rigid clamping pieces and the nuts can ensure that the distance between the steel wire mesh and the outer side of the heat insulation board is fixed and is kept consistent on each connecting point, the vertical smoothness of the steel wire mesh on the outer vertical surface is ensured, the steel wire mesh is positioned in the heat insulation mortar, construction is facilitated, the phenomena of dry laying of the steel wire mesh and a cavity of the heat insulation mortar are avoided, and the overall performance of the wall body is more reliable.

8. The steel expansion bolts, the gaskets, the nuts, the clamping pieces and other accessories and the outer surface of the steel wire mesh are soaked with the zinc coating, so that the corrosion phenomenon caused by the contact of the steel expansion bolts, the gaskets, the nuts, the clamping pieces and the like with concrete and cement mortar can be effectively prevented, and the durability and the fire resistance are improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

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

Fig. 2 is a schematic view of embodiment 1 of the present invention after concealing the tightening elements.

Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 4 is a schematic view of a state of the reinforced connector and the steel wire mesh in embodiment 2 of the present invention.

Fig. 5 is an enlarged schematic view of a joint between a reinforced connector and a steel wire mesh in embodiment 2 of the present invention.

Fig. 6 is a schematic diagram of an arrangement manner of connecting members on an insulation board according to embodiment 2 of the present invention.

In the figure, the expansion metal sleeve 1, the metal core rod 2, the blocking head 3, the spacer 4, the gasket 5, the nut 6, the expansion joint 7, the inner decoration layer 8, the base wall 9, the insulation board 10, the leveling layer 11, the plastering layer 12, the finish coat 13, the steel wire mesh 14, the pressing piece 141 and the clamping piece.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

Detailed description of the preferred embodiment 1

As shown in fig. 1 and fig. 2, the present embodiment provides a metal reinforced connector, which includes an expanded metal sleeve 1, a metal core rod 2 and a tightening member, wherein a blocking head 3 is provided at a front end of the metal core rod 2, the blocking head 3 is wider than the metal core rod 2, the expanded metal sleeve 1 is sleeved on the metal core rod 2, the blocking head 3 can block the expanded metal sleeve 1, an external thread is provided on the metal core rod 2, the tightening member is screwed to the metal core rod 2, the tightening member is located at a rear side of the expanded metal sleeve 1, the expanded metal sleeve 1 can be moved forward to abut against the blocking head 3 by rotating the tightening member forward, an expansion slit 6 is provided on an outer wall of the front end of the expanded metal sleeve 1, the expansion slit 6 has a plurality of pieces and is spaced around a central axis of the expanded metal sleeve 1, by providing the expansion slit 6, the expanded metal sleeve 1 is pushed forward by force, the front end of the blocking head is abutted against the blocking head 3 so as to be smoothly expanded, and further the expansion anchoring effect is realized.

Wherein, the tightening piece comprises a gasket 4 and a nut 5, the gasket 4 and the nut 5 are arranged on the metal core rod 2, and the gasket 4 is positioned between the expansion metal sleeve 1 and the nut 5 so as to facilitate the expansion metal sleeve to be pushed forwards by screwing the nut 5. The blocking head 3 is in a shape of a truncated cone with a wide front part and a narrow back part or in a shape of a cylinder, and certainly, the blocking head is not limited to the two shapes as long as the cross section or the outer diameter or the width of the blocking head 3 is larger than that of the metal core rod 2 to realize the expansion fastening effect.

The expanded metal sleeve 1 and the metal core rod 2 are made of steel.

Detailed description of the preferred embodiment 2

As shown in fig. 3 to 5, the present embodiment provides a wall structure, which includes a base wall 8, an insulation board 9, and a metal reinforced connecting member in embodiment 1, wherein the expanded metal sleeve 1 and the metal core rod 2 penetrate through the insulation board 9 and extend into the base wall 8, the tightening member is located outside the insulation board 9, the gasket 4 is blocked by a force and abuts against the outer surface of the insulation board 9 by screwing the nut 5, and the connection strength between the insulation board 9 and the base wall 8 is enhanced. The outer side of the heat insulation board 9 is provided with a leveling layer 10 and a plastering layer 11. The outside of heated board 9 is provided with the wire net, and the wire net is installed on metal core bar 2 through compressing tightly the piece, compresses tightly the piece and compresses tightly the wire net on tightening piece, compresses tightly the piece and includes grip tab 141 and nut 5, and the wire net is passed at the rear portion of metal core bar 2, compresses tightly the piece and installs on metal core bar 2, and the wire net is located and compresses tightly between the piece and the tightening piece, and grip tab 141 blocks the wire net from the outside. Wherein, the wall body 8 of basic unit and heated board 9 are last to have the through-wall bolt hole, and metal system enhancement mode connecting piece is installed in the through-wall bolt hole. The length of the portion of the metal core bar 2 exposed outside the heat insulating plate 9 is less than 2 cm. The distance between the steel wire mesh and the heat insulation plate 9 is preferably 1 cm.

It should be noted that the insulation board 9 may be an original board, i.e. a single board such as an extruded sheet, a polystyrene board, or a rock wool board; also can be composite insulation board 9, preferred composite insulation board 9 in this scheme, including the heat preservation, the both sides of heat preservation set up enhancement layer or inoxidizing coating. Furthermore, the present invention relates to a heat-insulating exterior form connecting member and a wall structure patent that have been filed by the applicant, patent application No. 2021210941416, namely RL heat-insulating exterior form, when an exterior form with a length of 3000mm and a width of 600mm is used, the connecting members are arranged in a manner that two connecting members are staggered one by one along the length direction, one is located in the middle of the exterior form, and two connecting members are located at the edges of the exterior form near the two sides (see fig. 6).

The construction principle is as follows: the expanded metal sleeve 1 and the metal core rod 2 assembled together penetrate into a wall-through bolt hole left in a formwork supporting process, the gasket 4 is pressed in, the nut 5 is screwed to enable the expanded metal sleeve 1 to expand, the gasket is extruded and stressed with the wall-through bolt hole left, meanwhile, the gasket 4 is stressed and blocked and abuts against the outer surface of the heat preservation plate 9, the combined action plays a role in anchoring, the part of the gasket extending into a base layer wall body 8 is larger than 6cm, a steel wire mesh is installed from the outside, transverse wires of the steel wire mesh are lapped on the exposed metal core rod 2, the steel clamping piece 141 is sleeved in the steel wire mesh, and the steel wire mesh is tightly pressed by the screw-in nut 5. 9 outside layers of heated board touch and press the mortar of making level of ready-mixing, and the mortar of making level that compresses tightly piece and wire net fixed point go out should touch and press the compactness, prevents to appear hollowing, and screed-coat 10 surface is in construction plastering mortar, impresses into plastering mortar with the spacing net cloth of alkali-resisting.

The terms "upper", "lower", "outside", "inside", and the like in the description and claims of the present invention and the above-described drawings (if any) are used for distinguishing relative positions without necessarily being construed qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a metal enhancement mode connecting piece which characterized in that, includes inflation metal sleeve pipe (1), metal core pole (2) and screwing piece, the front end of metal core pole (2) is provided with and blocks head (3), block head (3) and wider than metal core pole (2), inflation metal sleeve pipe (1) cover is on metal core pole (2), block head (3) and can block inflation metal sleeve pipe (1), be provided with the external screw thread on metal core pole (2), screwing piece threaded connection is to metal core pole (2), screwing piece is located the rear of inflation metal sleeve pipe (1), can make inflation metal sleeve pipe (1) move forward through forward rotation screwing piece and lean on to blocking head (3).

2. The metal-made reinforced connector according to claim 1, wherein a plurality of expansion joints (6) are provided on the outer wall of the front end of the expanded metal casing (1), and the plurality of expansion joints (6) are arranged at intervals around the central axis of the expanded metal casing (1).

3. The metal-reinforced connecting member according to claim 1, wherein the tightening member comprises a washer (4) and a nut (5), the washer (4) and the nut (5) being mounted on the metal core rod (2), the washer (4) being located between the expanded metal sleeve (1) and the nut (5).

4. The metal-made reinforced connector according to claim 1, wherein the stopper (3) has a truncated cone shape with a wide front and a narrow rear or a cylindrical shape.

5. A wall structure is characterized by comprising a base wall (8), a heat insulation board (9) and the metal reinforced connecting piece of any one of claims 1 to 4, wherein the expansion metal sleeve (1) and the metal core rod (2) penetrate through the heat insulation board (9) and extend into the base wall (8), the tightening piece is positioned on the outer side of the heat insulation board (9), and a leveling layer (10) and a plastering layer (11) are arranged on the outer side of the heat insulation board (9).

6. A wall structure according to claim 5, characterized in that the length of the part of the metal core rod (2) extending into the base wall (8) is more than 6 cm.

7. A wall structure according to claim 5, characterized in that a steel wire mesh (13) is arranged on the outer side of the insulation board (9), the steel wire mesh (13) is mounted on the metal core rod (2) through a pressing piece (14), and the pressing piece (14) presses the steel wire mesh (13) on the tightening piece.

8. The wall structure of claim 7, characterized in that the pressing piece (14) comprises a clamping piece (141) and a nut, the rear part of the metal core rod (2) penetrates through the steel wire mesh (13), the pressing piece (14) is installed on the metal core rod (2), the steel wire mesh (13) is located between the pressing piece (14) and the tightening piece, and the steel wire mesh (13) is blocked by the clamping piece (141) from the outside.

9. A wall structure according to claim 5, characterized in that the substrate wall (8) and the insulation board (9) are provided with through-wall bolt holes, and metal reinforcement connectors are mounted in the through-wall bolt holes.

10. A wall structure according to claim 5, characterized in that the length of the part of the metal core rod (2) exposed outside the insulation board (9) is less than 2 cm.