CN219528422U - Drawknot assembly for cast-in-place concrete built-in heat insulation wall and wall - Google Patents

Drawknot assembly for cast-in-place concrete built-in heat insulation wall and wall Download PDF

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Publication number
CN219528422U
CN219528422U CN202320617552.1U CN202320617552U CN219528422U CN 219528422 U CN219528422 U CN 219528422U CN 202320617552 U CN202320617552 U CN 202320617552U CN 219528422 U CN219528422 U CN 219528422U
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China
Prior art keywords
heat insulation
assembly
drawknot
cast
steel wire
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CN202320617552.1U
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Chinese (zh)
Inventor
王会杰
刘学志
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Hebei Jiupeng New Building Materials Co ltd
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Hebei Jiupeng New Building Materials Co ltd
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Priority to CN202320617552.1U priority Critical patent/CN219528422U/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762—Exterior insulation of exterior walls
    • E04B1/7629—Details of the mechanical connection of the insulation to the wall
    • E04B1/7633—Dowels with enlarged insulation retaining head
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/90—Passive houses; Double facade technology

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

The utility model discloses a drawknot component for a cast-in-place concrete built-in heat-preserving wall body and the wall body. The steel wire mesh is vertically and horizontally positioned by the pull knot assembly through the first clamping groove and the second clamping groove which are arranged in a crossing way and connected with the transverse steel wire and the longitudinal steel wire of the steel wire mesh in a clamping way, and the steel wire mesh is positioned inside and outside through the positioning rod part and the pull knot plate, so that the position of the steel wire mesh relative to the pull knot assembly is fixed; the inner positioning disc and the outer positioning disc in the positioning assembly are limited from moving outwards, so that the positioning assembly clamps the heat insulation layer after assembly, and the position of the heat insulation layer relative to the drawknot assembly is fixed. Thereby stably connecting the steel wire mesh and the heat insulation board together, the construction is convenient, the construction efficiency is improved, and the spliced heat insulation layer cannot be dislocated.

Description

Drawknot assembly for cast-in-place concrete built-in heat insulation wall and wall
Technical Field
The utility model relates to the field of buildings, in particular to a tie assembly for a cast-in-place concrete built-in heat-preservation wall body and the wall body.
Background
The large-mould built-in heat preservation form belongs to heat preservation structure integration, through placing the heated board between the reinforcement cage, then prop up the template and pour the concrete of different thickness simultaneously in the heated board both sides, form the composite wall body that has concurrently structural stress and outer wall energy-conservation in an organic whole, have with the main part be connected characteristics such as construction is simple, are adopted by popularization gradually.
When the heat-insulating module is spliced into the heat-insulating plate by building block type mutual staggered joint in the built-in heat-insulating mode of the large mould outside the stressed steel bars of the wall body, the position of the heat-insulating plate needs to be fixed by using the drawknot piece, and meanwhile, the steel wire welding net needs to be fixed at the outer end of the drawknot piece, so that the positioning and fixing of each structural part are realized. The existing fixing mode of the drawknot piece and the heat-insulating plate is realized by arranging barbs on a pull rod inserted into the heat-insulating plate, as disclosed in Chinese patent No. 202021117042.0, a low internal stress type built-in heat-insulating cast-in-place concrete composite shear wall drawknot piece is disclosed in the specification, the barb bolt of a drawknot piece gasket is enabled to penetrate into a heat-insulating layer in the construction process to prevent dislocation of the drawknot piece gasket, the connection mode enables connection of a steel wire net piece and the heat-insulating plate to be unstable, the barbs can damage the heat-insulating plate when the pull rod is inserted into the heat-insulating plate, the construction efficiency is low, the steel wire net piece and a drawknot component are complex and unstable in fixing, the description of the description is that the barbs of the drawknot piece rod body are required to be paid attention to be more in mounting notes on the same horizontal line of two thick jacking columns, and the positioning of the steel bar net piece and the heat-insulating layer is still realized through structural connection, so that the steel wire net piece and the heat-insulating plate are easy to shift, further the outer wall surface is not poured practically, the phenomenon of net leakage occurs, and engineering quality problems such as empty drum, cracking, falling and poor heat-insulating effect are easy to occur in the heat-insulating layer.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a drawknot component for a cast-in-place concrete built-in heat-insulation wall body, which is stable and firm in connection, and a wall body with good heat-insulation performance.
In order to solve the technical problems, the utility model adopts the following technical scheme:
drawknot assembly for cast-in-place concrete built-in heat preservation wall body, its characterized in that includes:
the heat insulation sleeve is made of plastic and is provided with a first end and a second end in the axial direction, after assembly, the first end of the heat insulation sleeve is close to the outer side of the cast-in-place concrete built-in heat insulation wall, and the second end of the heat insulation sleeve is close to the inner side of the cast-in-place concrete built-in heat insulation wall;
the positioning assembly is made of plastic, comprises an inner positioning disc and an outer positioning disc, is sleeved at the first end and the second end of the heat insulation sleeve respectively, and can be axially locked relative to the heat insulation sleeve after assembly;
the drawknot plate is positioned at the outer side of the outer positioning disc and is fixed with the outer positioning disc through a plurality of connecting arms;
the drawknot plate is provided with a perforation coaxial with the heat insulation sleeve, the edge of the perforation extends outwards and axially to form a locking cap, the outer end of the locking cap is provided with an axial notch, and the locking cap is also provided with a circumferential bayonet communicated with the bottom of the notch;
the outer surface of the drawknot plate is provided with a row of radially arranged clamping teeth, a first clamping groove which is clamped with a longitudinal steel wire on the steel wire mesh is formed between two adjacent clamping teeth, the two side walls of the first clamping groove are provided with inverted tooth sheets, and the inverted tooth sheets and the corresponding clamping teeth are arranged at an acute angle;
the outer surface of the drawknot plate is provided with an axially extending support plate, the support plate is positioned below the lock cap, and a second clamping groove which is clamped with a transverse steel wire on the steel wire mesh is formed between the bottom of the lock cap and the upper surface of the support plate;
drawknot assembly for cast-in-place concrete built-in heat preservation wall body still includes:
the tie rod is provided with a first end and a second end in the axial direction, the first end of the tie rod is provided with a positioning rod part protruding outwards in the radial direction, when the tie rod is assembled, the second end of the tie rod enters from the lock cap and extends out from the heat insulation sleeve, and the positioning rod part is clamped into the bayonet after rotating and is pressed on the outer side of the steel wire mesh.
The further technical scheme is that the drawknot plate is also fixed with a cushion block, and the cushion block is positioned at the corner of the support plate and the drawknot plate.
The further technical scheme is that wedge-shaped inverted teeth for preventing the positioning rod part from falling off are arranged on the side wall of the bayonet.
The heat insulation sleeve comprises a sleeve body and is characterized in that a first end of the heat insulation sleeve is provided with a circle of protruding edge which protrudes radially, and the protruding edge can penetrate through a lock cap and be limited inwards by an outer locating disc.
The heat insulation sleeve is characterized in that a plurality of annular barbs are arranged on the outer wall of the second end of the heat insulation sleeve, a plurality of fins matched with the barbs are arranged on the inner wall of the through hole of the inner positioning disc, and the barbs can enable the inner positioning disc to move unidirectionally from the inner side to the outer side of the cast-in-place concrete built-in heat insulation wall body when being assembled.
The further technical scheme is that grouting holes are formed in the inner positioning disc and the outer positioning disc.
The further technical scheme is that an outer heat insulation cap is detachably fixed at the opening of the outer end of the lock cap.
The second end of the drawknot rod is detachably fixed with an inner heat insulation cap.
The cast-in-place concrete built-in heat-insulating wall body comprises a protective layer, a heat-insulating layer and a structural layer which are sequentially arranged from outside to inside, wherein the protective layer and the structural layer are formed by concrete pouring, steel wire meshes are arranged in the protective layer, and a steel bar structure is arranged in the structural layer;
the drawknot plate is positioned at the inner side of the steel wire mesh, and crisscrossed steel bars on the steel wire mesh are respectively clamped into the first clamping groove and the second clamping groove;
the second end of the heat insulation sleeve extends into the structural layer;
the inner positioning plate and the outer positioning plate penetrate through the heat insulation sleeve and are respectively attached to the inner side and the outer side of the heat insulation layer, and the heat insulation layer is locked between the inner positioning plate and the outer positioning plate;
during assembly, the second end of the drawknot rod enters through the locking cap and is fixed with a steel bar structure in the structural layer after extending out of the heat insulation sleeve, and the locating rod part is clamped into the bayonet after rotating and is pressed on the outer side of the steel wire mesh.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
the steel wire mesh is vertically and horizontally positioned by the pull knot assembly through the first clamping groove and the second clamping groove which are arranged in a crossing way and connected with the transverse steel wire and the longitudinal steel wire of the steel wire mesh in a clamping way, and the steel wire mesh is positioned inside and outside through the positioning rod part and the pull knot plate, so that the position of the steel wire mesh relative to the pull knot assembly is fixed; the inner positioning disc and the outer positioning disc in the positioning assembly are limited from moving outwards, so that the positioning assembly clamps the heat insulation layer after assembly, and the position of the heat insulation layer relative to the drawknot assembly is fixed. Thereby stably connecting the steel wire mesh and the heat insulation board together, the construction is convenient, the construction efficiency is improved, and the spliced heat insulation layer cannot be dislocated.
The row of clamping teeth arranged on the drawknot plate can be clamped and fixed with different positions or a plurality of longitudinal steel wires on one hand, and the folding line structure is formed by matching with the inverted tooth piece on the other hand, so that the connection strength of the drawknot plate and the protective layer can be enhanced after concrete is poured; and connect through a plurality of linking arms between drawknot board and the outer positioning disk, form hollow out construction, the drawknot pole part that corresponds forms half parcel, can strengthen the joint strength of drawknot pole and inoxidizing coating after pouring concrete to the stability of drawknot subassembly and wall body connection after pouring has been guaranteed.
The cast-in-place concrete built-in heat-insulating wall is fixed by the pull-knot assembly, the relative positions of all layers are stable, the connection strength of all layers of the wall is improved, the problems of cracking and the like among layered structures are avoided, and the heat-insulating performance is good.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a drawknot assembly of the present utility model;
FIG. 2 is a schematic view of the structure of the drawknot plate portion of the present utility model;
FIG. 3 is a schematic view of a structure of a drawknot assembly of the present utility model assembled by clamping a wire mesh sheet;
FIG. 4 is a schematic view of the construction of the insulating sleeve of the present utility model;
FIG. 5 is a schematic view of the structure of the positioning disk in the present utility model;
fig. 6 is a schematic cross-sectional view of a wall according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
As shown in fig. 1-5, the drawknot component for the cast-in-place concrete built-in heat insulation wall is used for connecting and fixing the protective layer 1, the heat insulation layer 2 and the structural layer 3 in the wall, and the drawknot component comprises a heat insulation sleeve 10, a positioning component, a drawknot plate 30 and a drawknot rod 40, wherein the heat insulation sleeve 10, the positioning component and the drawknot plate 30 are made of plastic materials so as to reduce the heat conductivity of the wall, and the drawknot rod 40 is made of metal materials so as to ensure the drawknot strength of the drawknot component.
The heat insulation sleeve 10 is provided with a first end and a second end in the axial direction, after assembly, the first end of the heat insulation sleeve 10 is close to the outer side of the cast-in-place concrete built-in heat insulation wall, and the second end of the heat insulation sleeve 10 is close to the inner side of the cast-in-place concrete built-in heat insulation wall. The positioning assembly comprises an inner positioning plate 22 and an outer positioning plate 21 which are respectively sleeved at a first end and a second end of the heat insulation sleeve 10 and can be axially locked relative to the heat insulation sleeve 10 after assembly, and a drawknot plate 30 is positioned on the outer side of the outer positioning plate 21 and is fixed with the outer positioning plate 21 through a plurality of connecting arms 35. Wherein the outer positioning plate 21 and the drawknot plate 30 can be manufactured by integral molding.
The drawknot plate 30 mainly has the function of being fixed with the steel wire mesh 4 in the protective layer 1. The drawknot plate 30 is provided with a perforation coaxial with the heat insulation sleeve 10, the edge of the perforation is axially extended outwards to form a locking cap 31, the outer end of the locking cap 31 is provided with an axial opening, and the locking cap 31 is also provided with a circumferential bayonet communicated with the bottom of the opening. The outer surface of the drawknot plate 30 is provided with a row of radially arranged clamping teeth 32, a first clamping groove which is clamped with the longitudinal steel wires on the steel wire mesh 4 is formed between two adjacent clamping teeth 32, the two side walls of the first clamping groove are provided with inverted tooth sheets, and the inverted tooth sheets are arranged at an acute angle with the corresponding clamping teeth 32. The outer surface of the drawknot plate 30 is provided with an axially extending support plate 33, the support plate 33 is positioned below the locking cap 31, a second clamping groove which is clamped with the transverse steel wires on the steel wire mesh 4 is formed between the bottom of the locking cap 31 and the upper surface of the support plate 33, and the second clamping groove and the first clamping groove are vertically arranged to fix the cross steel wires on the steel wire mesh 4.
The tie rod 40 has a first end and a second end in the axial direction, the first end of the tie rod has a positioning rod portion 41 protruding radially outwards, and when assembled, the second end of the tie rod 40 enters from the locking cap 31 and extends from the heat insulation sleeve 10, and the positioning rod portion 41 is clamped into the bayonet after rotating and is pressed on the outer side of the wire mesh sheet 4. The side wall of the bayonet is provided with the wedge-shaped inverted tooth for preventing the positioning rod part 41 from falling out, the positioning rod part 41 can squeeze the wedge-shaped inverted tooth to deform when entering the bayonet, and after the positioning rod part 41 enters the bottom of the bayonet, the wedge-shaped inverted tooth resets to stop the positioning rod part 41 from falling out of the bayonet, thereby limiting the rotation of the drawknot rod 40.
The cast-in-place concrete built-in heat preservation wall comprises a protective layer 1, a heat preservation layer 2 and a structural layer 3 which are sequentially arranged from outside to inside, wherein the protective layer 1 and the structural layer 3 are formed by concrete pouring, a steel wire mesh 4 is arranged in the protective layer 1, a steel bar structure is arranged in the structural layer 3, and the steel wire mesh 4 is welded by transverse steel wires and longitudinal steel wires and is provided with rectangular meshes.
Since the transverse steel wires and the longitudinal steel wires forming the steel wire mesh sheet 4 are not in one plane and are stacked back and forth, in order to enable the drawknot plate 30 to be in contact with and positioned with the transverse steel wires and the longitudinal steel wires simultaneously, a cushion block 34 is further fixed on the drawknot plate 30, and the cushion block 34 is positioned at a corner formed by the support plate 33 and the drawknot plate 30, so that the drawknot plate 30 is in contact with the transverse steel wires and the longitudinal steel wires simultaneously, and uneven steel wire mesh sheet 4 after drawknot is prevented.
Regarding the assembly mode of the positioning assembly and the heat insulation sleeve 10, a circle of protruding edges 12 protruding radially at the first end of the heat insulation sleeve 10 can be adopted, the protruding edges 12 can penetrate through the lock cap 31 and be limited inwards by the outer positioning disc 21, and after assembly, displacement limitation of the outer positioning disc 21 is achieved. The outer wall of the second end of the heat insulation sleeve 10 is provided with a plurality of annular barbs 11, the barbs are conical with the large ends facing outwards, the perforated inner wall of the inner positioning disc 22 is provided with a plurality of fins 221 matched with the barbs, the barbs can enable the inner positioning disc 22 to move unidirectionally from the inner side to the outer side of the cast-in-place concrete built-in heat insulation wall, and the inner positioning disc 22 is limited to move inwards through clamping connection between the fins 221 and the barbs.
Grouting holes are formed in the inner positioning plate 22 and the outer positioning plate 21. After grouting into the protective layer 1 and the structural layer 3, the positioning component is adhered with the filled concrete slurry, so that the connection stability of the drawknot component and the wall is improved.
In addition, in order to reduce the outward heat transfer of the drawknot assembly, an outer heat insulating cap is detachably fixed to the opening of the outer end of the locking cap 31, and an inner heat insulating cap 42 is detachably fixed to the second end of the drawknot stem 40.
As shown in fig. 6, the protective layer 1, the heat-insulating layer 2 and the structural layer 3 in the cast-in-place concrete built-in heat-insulating wall are fixed by adopting the pull-knot assembly. Specifically, after the assembly of the drawknot assembly, the drawknot plate 30 is located at the inner side of the steel wire mesh 4, and the crisscrossed steel bars on the steel wire mesh 4 are respectively clamped into the first clamping groove and the second clamping groove. The second end of the insulating sleeve extends into the structural layer 3. The inner positioning plate 22 and the outer positioning plate 21 penetrate through the heat insulation sleeve 10 and are respectively attached to the inner side and the outer side of the heat insulation layer 2, and the heat insulation layer 2 is locked between the inner positioning plate and the outer positioning plate. During assembly, the second end of the tie rod 40 enters from the locking cap 31 and extends out from the heat insulation sleeve 10, then is fixed with the steel bar structure in the structural layer 3 in a steel wire binding mode and the like, and the positioning rod 41 is clamped into the bayonet after rotating and is pressed on the outer side of the steel wire mesh 4.
The drawknot assembly is clamped with the transverse steel wires of the steel wire mesh 4 through the first clamping grooves and the second clamping grooves which are arranged in a crossing manner, so that the steel wire mesh 4 is positioned up and down and left and right, and the steel wire mesh 4 is positioned inside and outside through the positioning rod part 41 and the drawknot plate 30, so that the position of the steel wire mesh 4 relative to the drawknot assembly is fixed; the inner positioning disc 22 and the outer positioning disc in the positioning assembly are limited from moving outwards, so that the positioning assembly is guaranteed to clamp the heat insulation layer 2 after assembly, and the position of the heat insulation layer 2 relative to the drawknot assembly is fixed. Thereby stably connecting the steel wire mesh 4 and the heat insulation board together, the construction is convenient, the construction efficiency is improved, and the spliced heat insulation layer 2 cannot be misplaced.
The row of clamping teeth 32 arranged on the drawknot plate 30 can be clamped and fixed with different positions or a plurality of longitudinal steel wires on one hand, and can be matched with a inverted tooth sheet to form a fold line-shaped structure on the other hand, so that the connection strength of the drawknot plate 30 and the protective layer 1 can be enhanced after concrete is poured; and, connect through a plurality of linking arms 35 between drawknot board 30 and the outer positioning disk 21, form hollow out construction, the drawknot pole part that corresponds forms half parcel, can strengthen drawknot pole 40 and inoxidizing coating 1's joint strength after pouring concrete to the stability of drawknot subassembly and wall body connection after pouring has been guaranteed.
The cast-in-place concrete built-in heat-insulating wall is fixed by the drawknot assembly, so that the relative positions of all layers are stable, the connection strength of all layers of the wall is improved, the problems of cracking and the like among layered structures are avoided, and the heat-insulating performance is good.
The foregoing is only a preferred embodiment of the present utility model, and any and all simple modifications, variations and equivalents of the present utility model will fall within the scope of the present utility model.

Claims (9)

1. Drawknot assembly for cast-in-place concrete built-in heat preservation wall body, its characterized in that includes:
the heat insulation sleeve (10) is made of plastic and is provided with a first end and a second end in the axial direction, after assembly, the first end of the heat insulation sleeve (10) is close to the outer side of the cast-in-place concrete built-in heat insulation wall, and the second end of the heat insulation sleeve (10) is close to the inner side of the cast-in-place concrete built-in heat insulation wall;
the positioning assembly is made of plastic, comprises an inner positioning disc (22) and an outer positioning disc (21), is sleeved at the first end and the second end of the heat insulation sleeve (10) respectively, and can be axially locked relative to the heat insulation sleeve (10) after assembly;
the drawknot plate (30) is positioned at the outer side of the outer positioning disc (21) and is fixed with the outer positioning disc (21) through a plurality of connecting arms (35);
the drawknot plate (30) is provided with a perforation coaxial with the heat insulation sleeve (10), the edge of the perforation is axially extended outwards to form a locking cap (31), the outer end of the locking cap (31) is provided with an axial notch, and the locking cap (31) is also provided with a circumferential bayonet communicated with the bottom of the notch;
a row of radially arranged clamping teeth (32) are arranged on the outer surface of the drawknot plate (30), a first clamping groove which is clamped with a longitudinal steel wire on the steel wire mesh (4) is formed between two adjacent clamping teeth (32), inverted tooth sheets are arranged on two side walls of the first clamping groove, and an acute angle is formed between the inverted tooth sheets and the corresponding clamping teeth (32);
the outer surface of the drawknot plate (30) is provided with an axially extending support plate (33), the support plate (33) is positioned below the lock cap (31), and a second clamping groove which is clamped with the transverse steel wires on the steel wire mesh (4) is formed between the bottom of the lock cap (31) and the upper surface of the support plate (33);
drawknot assembly for cast-in-place concrete built-in heat preservation wall body still includes:
the tie rod (40) is provided with a first end and a second end in the axial direction, the first end of the tie rod is provided with a positioning rod part (41) protruding outwards in the radial direction, when the tie rod is assembled, the second end of the tie rod (40) enters from the lock cap (31) and extends out from the heat insulation sleeve (10), and the positioning rod part (41) is clamped into the bayonet after rotating and is pressed on the outer side of the steel wire mesh (4).
2. The tie assembly for the cast-in-place concrete built-in heat preservation wall body according to claim 1, wherein a cushion block (34) is further fixed on the tie plate (30), and the cushion block (34) is located at a corner formed by the support plate (33) and the tie plate (30).
3. The tie assembly for cast-in-place concrete built-in thermal insulation wall according to claim 1, wherein the side wall of the bayonet is provided with wedge-shaped inverted teeth for preventing the positioning rod part (41) from falling out.
4. The tie assembly for cast-in-place concrete built-in thermal insulation wall according to claim 1, wherein the first end of the thermal insulation sleeve (10) is provided with a circle of radially protruding edges (12), and the protruding edges (12) can penetrate through the lock caps (31) and be limited inwards by the outer positioning disc (21).
5. The tie assembly for the cast-in-place concrete built-in heat preservation wall body according to claim 1, wherein a plurality of annular barbs (11) are arranged on the outer wall of the second end of the heat insulation sleeve (10), a plurality of fins (221) matched with the barbs (11) are arranged on the perforated inner wall of the inner positioning disc (22), and the barbs (11) can enable the inner positioning disc (22) to move unidirectionally from the inner side to the outer side of the cast-in-place concrete built-in heat preservation wall body during assembly.
6. The tie assembly for cast-in-place concrete built-in thermal insulation wall according to claim 1, wherein grouting holes are formed in the inner positioning plate (22) and the outer positioning plate (21).
7. The tie assembly for cast-in-place concrete built-in thermal insulation wall according to claim 1, wherein an outer thermal insulation cap is detachably fixed at an opening at the outer end of the locking cap (31).
8. The tie assembly for cast-in-place concrete built-in thermal insulation wall according to claim 1, wherein the second end of the tie rod (40) is detachably fixed with an inner thermal insulation cap (42).
9. The cast-in-place concrete built-in heat preservation wall comprises a protective layer (1), a heat preservation layer (2) and a structural layer (3) which are sequentially arranged from outside to inside, wherein the protective layer (1) and the structural layer (3) are formed by concrete pouring, a steel wire mesh (4) is arranged in the protective layer (1), a steel bar structure is arranged in the structural layer (3), and the steel wire mesh (4) is welded by transverse steel wires and longitudinal steel wires and is formed with rectangular meshes, and the cast-in-place concrete built-in heat preservation wall is characterized in that the protective layer (1), the heat preservation layer (2) and the structural layer (3) are fixed by adopting the drawknot assembly according to any one of claims 1-8;
the drawknot plate (30) is positioned at the inner side of the steel wire mesh (4), and crisscrossed steel bars on the steel wire mesh (4) are respectively clamped into the first clamping groove and the second clamping groove;
the second end of the heat insulation sleeve extends into the structural layer (3);
the inner positioning plate (22) and the outer positioning plate (21) penetrate through the heat insulation sleeve (10) and are respectively attached to the inner side and the outer side of the heat insulation layer (2), and the heat insulation layer (2) is locked between the inner positioning plate and the outer positioning plate;
during assembly, the second end of the drawknot rod (40) enters through the lock cap (31) and is fixed with a steel bar structure in the structural layer (3) after extending out of the heat insulation sleeve (10), and the locating rod part (41) is clamped into the bayonet after rotating and is pressed on the outer side of the steel wire mesh (4).
CN202320617552.1U 2023-03-27 2023-03-27 Drawknot assembly for cast-in-place concrete built-in heat insulation wall and wall Active CN219528422U (en)

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CN202320617552.1U CN219528422U (en) 2023-03-27 2023-03-27 Drawknot assembly for cast-in-place concrete built-in heat insulation wall and wall

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CN202320617552.1U CN219528422U (en) 2023-03-27 2023-03-27 Drawknot assembly for cast-in-place concrete built-in heat insulation wall and wall

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CN219528422U true CN219528422U (en) 2023-08-15

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