CN212957112U - Drawknot spare and building wall - Google Patents

Abstract

The utility model discloses a drawknot spare, include: a first body part extending in a first direction, having one end and the other end, the first body part having a front surface and a rear surface in a second direction perpendicular to the first direction; at least one first convex part is arranged at one end of the first body part and on the front surface and/or the back surface of the first body part; at least one second convex part is arranged on the front surface and/or the back surface of the first body part at the other end of the first body part. The utility model discloses an extending direction's of drawknot piece both ends are equipped with first convex part and second convex part, under the applied state, the both ends of drawknot piece can improve the bond stress of drawknot piece in the wallboard with the unsmooth cooperation of wallboard respectively to promote and resist the lateral pressure of concrete placement in-process jointly with the wallboard. The utility model also provides a building wall.

Description

Drawknot spare and building wall

Technical Field

The utility model relates to a building technical field, in particular to drawknot spare and building wall.

Background

At present, in the building construction of China, counter-pulling screw rods are required to be used in bamboo templates or steel-aluminum templates, the counter-pulling rod pieces are mainly used for resisting side pressure generated in the concrete pouring process of a wall body and avoiding template 'die explosion', the wall body pulling rods generally need to be assembled and disassembled manually on the construction site, and due to the fact that the quantity of the counter-pulling rod pieces is large, a large amount of labor and time are consumed in the assembling and disassembling process, and the shortcoming of high labor cost exists. Moreover, the resistance of the pull screw rod to the lateral pressure is insufficient, and the template is easy to explode.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the counter-pulling screw rod is not enough to resist the lateral pressure of the wall body produced in the concrete pouring process. The utility model provides a drawknot spare, the extending direction's of drawknot spare both ends are equipped with first convex part and second convex part, under the applied state, the both ends of drawknot spare can be respectively with the unsmooth cooperation of wallboard, can improve the bond stress of drawknot spare in the wallboard to promote and resist the lateral pressure of concrete placement in-process jointly with the wallboard.

In order to solve the technical problem, an embodiment of the utility model discloses a drawknot spare, include: a first body part extending in a first direction, having one end and the other end, the first body part having a front surface and a rear surface in a second direction perpendicular to the first direction; at least one first convex part is arranged at one end of the first body part and on the front surface and/or the back surface of the first body part; at least one second protrusion is disposed on the front surface and/or the back surface of the first body portion at the other end of the first body portion.

Adopt above-mentioned technical scheme, the extending direction's of drawknot piece both ends are equipped with first convex part and second convex part, and under the application state, the both ends of drawknot piece can improve the bond stress of drawknot piece in the wallboard with the unsmooth cooperation of wallboard respectively to promote and resist the lateral pressure of concrete placement in-process jointly with the wallboard.

According to another embodiment of the present invention, the middle region of the first body part is formed with an inner concave surface protruding from the back surface of the first body part in a direction from the front surface to the back surface of the first body part; or, in a direction from the back surface to the front surface of the first body part, the middle region of the first body part is formed with an inner concave surface protruding from the front surface of the first body part.

According to the utility model discloses a further concrete implementation mode, the bottom of interior concave surface is equipped with two at least through-holes.

According to another embodiment of the present invention, the first body portion is flat.

According to another specific embodiment of the present invention, the first body portion is in a long strip shape, and along the second direction, the thickness of the first body portion is between 1mm and 3mm, and the thickness of the back surface or the front surface of the first body portion protruding from the inner concave surface is between 1mm and 3 mm.

According to another embodiment of the present invention, at one end of the first body portion, the front surface and the back surface of the first body portion are provided with at least two first protruding portions, and along the second direction, the adjacent first protruding portions on the front surface of the first body portion have different thicknesses, and the adjacent first protruding portions on the back surface of the first body portion have different thicknesses; at least two second protrusions are arranged on the front surface and the back surface of the first body part at the other end of the first body part, and the thicknesses of the adjacent second protrusions on the front surface of the first body part are different and the thicknesses of the adjacent second protrusions on the back surface of the first body part are different along the second direction.

According to the utility model discloses a further concrete implementation mode, the front and/or the back of first noumenon portion are equipped with at least one lantern ring, the lantern ring perpendicular to first noumenon portion for the dark post reinforcing bar that extends along the depth direction is established to the cover, and the cover is located the interior dark post reinforcing bar of lantern ring can be followed the depth direction is relative the lantern ring removes.

According to the utility model discloses a another embodiment, be located the dark post reinforcing bar in the lantern ring can remove the settlement distance in the horizontal direction, the horizontal direction is on a parallel with first direction.

The application also provides a building wall, includes:

the fastener of any of the above;

a first wall panel;

the second wall plate is connected with the first wall plate through a plurality of the pulling pieces and is arranged at intervals with the first wall plate;

one end of each pulling piece is in concave-convex fit with the first wallboard, and the other end of each pulling piece is in concave-convex fit with the second wallboard.

According to another embodiment of the present invention, each of the tie members is vertically connected to the first wall panel and the second wall panel, respectively, along the first direction; along the second direction, the first body parts of the adjacent pulling pieces are arranged in parallel and face to face.

According to the utility model discloses a further embodiment, first wallboard is the inner leaf wallboard, the second wallboard is the middle part wallboard, the middle part wallboard is through a plurality of drawknot spare with the inner leaf wallboard is connected, and with the inner leaf wallboard encloses into first cavity, be equipped with the wall structure reinforcing bar in the first cavity.

According to another embodiment of the present invention, the inner leaf wall panel comprises a first portion and a second portion arranged at a first angle, and the middle wall panel comprises a first portion and a second portion arranged at a second angle;

the first part of the inner leaf wall board is flat and the second part of the inner leaf wall board is flat, the first part of the inner leaf wall board is longer than the second part of the inner leaf wall board, the first part of the inner leaf wall board is formed by splicing at least two first sub-parts, and one first sub-part is arranged at the first angle with the second part of the inner leaf wall board; and/or the presence of a gas in the gas,

the first portion of middle part wallboard is the straight form, the second portion of middle part wallboard is the straight form, the first portion of middle part wallboard is longer than the second portion of middle part wallboard, the first portion of middle part wallboard is formed by at least two second subportions concatenation, one of them the second subportion with the second portion of middle part wallboard is the second angle setting.

According to the utility model discloses a further concrete implementation mode, wherein two be formed with between the first subsection along building wall's the degree of depth direction extend with the trompil of first cavity intercommunication, the trompil is as the operation working face, trompil department covers there is the shutoff template.

According to another embodiment of the present invention, the one of the first sub-portions connected to the second portion of the inner leaf wall panel, the one of the second sub-portions connected to the second portion of the middle wall panel, and the second portion of the middle wall panel enclose a corner cavity;

the rest first sub-parts of the inner leaf wall plate and the rest second sub-parts of the middle wall plate enclose a straight section cavity;

the wall structure reinforcing bar includes: the straight section hidden column steel bar framework, the straight section wall body steel bar framework, the connecting steel bars and the corner hidden column steel bar framework;

the corner cavity is provided with the corner embedded column steel bar framework, the part of the straight section cavity adjacent to the corner cavity is provided with the straight section wall body steel bar framework, the rest part of the straight section cavity is provided with the straight section embedded column steel bar framework, and the straight section wall body steel bar framework and the corner embedded column steel bar framework are connected through connecting steel bars; wherein the content of the first and second substances,

before the first part of the inner leaf wallboard and the first part of the middle wallboard are spliced to form the connecting steel bar, the connecting steel bar is positioned in the straight section cavity;

the first part of inner leaf wallboard and the first part concatenation of middle part wallboard forms the back, through the operation working face will the connecting reinforcement by straight section cavity stretches into in the corner cavity, realize straight section wall body framework of steel reinforcement with corner hidden column framework of steel reinforcement's connection.

According to another embodiment of the present invention, the first angle is 90 °, and the second angle is 90 °.

Drawings

Fig. 1 is a perspective view of a building wall according to an embodiment of the present invention;

fig. 2 shows a first top view of a building wall according to an embodiment of the present invention;

fig. 3 shows a second top view of the building wall according to the embodiment of the present invention;

fig. 4 shows a side view of a building wall according to an embodiment of the invention;

fig. 5 shows a third top view of the building wall according to the embodiment of the present invention;

fig. 6 shows a first perspective view of a first fastener in a building wall according to an embodiment of the present invention;

fig. 7 shows a first side view of a first fastener in a building wall according to an embodiment of the present invention;

fig. 8 shows a fourth top view of the building wall according to the embodiment of the present invention;

fig. 9 shows a fifth top view of a building wall according to an embodiment of the present invention;

fig. 10 is a second perspective view of a first fastener in a building wall according to an embodiment of the present invention;

fig. 11 shows a second side view of a first fastener in a building wall according to an embodiment of the present invention;

fig. 12 is a perspective view of a drawknot component fixing tool according to an embodiment of the present invention;

fig. 13 is an enlarged view of a portion a in fig. 12;

fig. 14 shows a first side view of a fastener attachment assembly according to an embodiment of the present invention;

fig. 15 is a side view of a fastener fixing tool according to an embodiment of the present invention;

fig. 16 shows a second side view of a fastener mounting assembly according to an embodiment of the present invention.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 to 4, the utility model provides a building wall 1, include: inner leaf panel 10, middle panel 20, and outer leaf panel 50. Alternatively, the inner leaf panels 10, middle panels 20 and outer leaf panels 50 are formed of concrete or other cement-based material without rebar structures therein. The inner leaf wall panel 10 includes a first portion 11 and a second portion 12 disposed at a first angle, in this embodiment, the first angle is 90 °, that is, the first portion 11 and the second portion 12 of the inner leaf wall panel 10 are perpendicular and orthogonally joined, so that the inner leaf wall panel 10 is integrally "L-shaped", but the first portion 11 and the second portion 12 of the inner leaf wall panel 10 may also be joined at other angles, that is, the first angle may be other angles, for example, 80 °, 95 °, 120 °, and so on.

The middle wall plate 20 comprises a first part 21 and a second part 22 arranged at a second angle, in this embodiment, the second angle is 90 °, that is, the first part 21 and the second part 22 of the middle wall plate 20 are perpendicular and are orthogonally spliced, so that the whole middle wall plate 20 is in an "L shape", but the first part 21 and the second part 22 of the middle wall plate 20 can also be spliced at other angles, that is, the second angle can be other angles, such as 80 °, 95 °, 120 ° and the like; middle part wallboard 20 is connected with interior leaf wallboard 10 through a plurality of first drawknot pieces 40 to enclose into first cavity 10a with interior leaf wallboard 10, be equipped with wall structure reinforcing bar 30 in the first cavity 10a, form building wall 1's structural function district.

The outer leaf wall panel 50 comprises a first portion 51 and a second portion 52 arranged at a third angle, in this embodiment, the third angle is 90 °, that is, the first portion 51 and the second portion 52 of the outer leaf wall panel 50 are perpendicular and orthogonally joined, so that the outer leaf wall panel 50 is overall "L-shaped", but the first portion 51 and the second portion 52 of the outer leaf wall panel 50 may also be joined at other angles, that is, the third angle may be other angles, for example, 80 °, 95 °, 120 °, and so on. The outer leaf wallboard 50 is connected with the middle wallboard 20 through a plurality of second tie pieces 41, and encloses into second cavity 50a with the middle wallboard 20, is equipped with heat preservation wallboard 60 in the second cavity 50a, and heat preservation wallboard 60 is connected with second tie pieces 41, forms the heat preservation functional area of building wall 1.

Therefore, in the building wall 1 of the present application, in the thickness direction (shown in the direction H in fig. 3), the building wall 1 is composed of two functional areas, namely, a structural functional area and a thermal insulation functional area. The building wall 1 is a prefabricated part with a cavity structure, the building wall 1 is provided with a first cavity 10a and a second cavity 50a, and integrates external wall heat preservation and structural steel bars 30 of the building wall 1, the building wall 1 is manufactured in a factory, demoulded and maintained after being hardened, transported to a site for assembly, hoisted in place according to the requirements of a construction drawing, and then poured with concrete into the first cavity 10a to form the building wall. Manual formwork supporting, formwork removing and heat preservation operations on a construction site are omitted, and even later manual plastering operations are omitted.

In a factory, the heat-insulating wall board 60 is integrated with the middle wall board 20 and the outer leaf wall board 50 into a prefabricated part through the second pulling piece 41, so that manual operation on a construction site is avoided, and the phenomenon that a heat-insulating protective layer is peeled off due to quality problems is avoided. The building wall 1 of this application adopts the structure of taking the cavity, wants lighter than traditional precast concrete side fascia dead weight, and the cost of manufacture is lower, the preparation efficiency is higher. Can effectively reduce the cost and is more beneficial to the popularization and the comparison of the assembly type building technology.

Furthermore, as shown in fig. 3, the wall structure reinforcing steel bars 30 inside the first cavity 10a integrate the wall reinforcing steel bars (in the A, B area in fig. 3) and the hidden column reinforcing steel bars (outside the A, B area in fig. 3), i.e., the hidden column reinforcing steel bars are arranged at two ends of the building wall 1, the wall reinforcing steel bars are arranged in the middle part, no manual steel bar binding is needed on site, and a large amount of labor and material costs are saved. The first cavity 10a is a stressed structure layer of the building wall 1, and in the building construction process, after the building wall 1 is hoisted in place, concrete is poured into the first cavity 10a to fill the cavity, and the inner leaf wall panels 10 and the middle wall panels 20 on the two sides of the concrete are templates for pouring the concrete. Before the concrete is poured, the opening parts of the cavities at the two ends of the building wall body 1 can be sealed by using templates. The poured concrete forms a structural stressed wall together with the wall construction rebar 30 integrated within the first cavity 10 a. And, concrete is poured into the first cavity 10a, so that the wall body part and the hidden column part of the building are formed by one-time pouring, and the condition that two construction processes of cast-in-place and prefabrication are staggered does not exist.

Moreover, the first tie member 40 and the second tie member 41 are installed in the building wall 1, and do not need to be installed and disassembled manually on the construction site, so that the labor cost can be effectively saved compared with the traditional counter-pulling screw, the construction period is shortened, the building industrialization degree is improved, and the cost can be effectively reduced compared with a fiber reinforced composite (FRP) tie member or a stainless steel tie member in a precast concrete wall, and the popularization of the assembly type building technology is facilitated.

Alternatively, the inner leaf wall panels 10 and the middle wall panels 20 are tensile wall panels to resist lateral pressure generated when concrete is poured in the first cavity 10a, and the materials used include, but are not limited to, cement-based composite materials, metals, and synthetic composite materials.

Optionally, the outer leaf wall panel 50 is a decorative layer of the building wall 1 and a protective layer of the thermal insulation wall panel 60, so as to protect the thermal insulation wall panel 60 from external force and environmental damage, and meanwhile, the outer leaf wall panel 50 may also be integrated with an outer decoration of an outer wall, and the spraying and pasting processes of the outer wall decoration may be completed in a factory.

Alternatively, the thermal insulation wall board 60 may use a board with thermal insulation performance with fire-proof rating of B level or above, the surface of the thermal insulation wall board 60 may be coated or coated according to the requirement, and the position and range of the thermal insulation board are arranged according to the building drawing of the actual project.

Optionally, the first tie member 40 serves to connect the inner leaf wall panel 10 and the middle wall panel 20 together and to resist side pressure during concrete casting, and uses a processing material having a tensile strength, including but not limited to metal or synthetic composite material.

Optionally, the second tie member 41 is used to connect the thermal insulation wall panel 60, the middle wall panel 20 and the outer wall panel 50 together, so that the outer wall panel 50 with the thermal insulation layer protection function cannot fall off, in order to reliably connect the second tie member 41 with the wall structure part, the second tie member 41 penetrates through the middle wall panel 20 and the thermal insulation wall panel 60, one end of the second tie member is located in the outer wall panel 50, and the other end of the second tie member is located in the first cavity 10a, concrete is poured in the first cavity 10a, after the concrete is hardened, the second tie member 41 can be reliably fixed in the wall panel of the building wall 1 and is not easy to fall off, so that the structural functional area and the thermal insulation functional area are connected into a whole through the first tie member 40 and the second tie member 41, and the overall strength of the building wall 1 is improved. Alternatively, the second pulling member 41 may be made of a material having a low heat transfer system, such as stainless steel.

Alternatively, referring to fig. 1, 3 and 4, the insulating wall panel 60 is attached to the first portion 21 and the second portion 22 of the middle wall panel 20, respectively, and is spaced apart from the outer leaf wall panels 50 to form a third cavity 50 b. That is, thermal insulation wall panel 60 is including being the first portion and the second portion that the fourth angle set up, and the numerical value of fourth angle and second angle equals, and thermal insulation wall panel 60's first portion and the laminating of the first portion of middle part wallboard 20 mutually, and thermal insulation wall panel 60's second portion and the laminating of the second portion of middle part wallboard 20 mutually.

Be formed with third cavity 50b between outer leaf wallboard 50 and the heat preservation wallboard 60, third cavity 50b is building wall 1's waterproof layer, in case the rainwater passes through within piece or the crack infiltration outer leaf wallboard 50, moisture can be in the same direction as the inner wall of outer leaf wallboard 50 and down the landing, or attach and wait for its evaporation on the inner wall of outer leaf wallboard 50, can not be toward inside infiltration again, and water-proof effects is good. Therefore, the building wall body 1 integrates heat preservation and waterproof functions on the prefabricated parts, heat preservation and waterproof process operation on the wall board in the later period of labor is not needed, labor cost is reduced, and construction period is shortened.

Referring to fig. 1, 4 and 5, in the depth direction of the building wall 1 (shown in the Z direction in fig. 1 and 4), a plurality of layers of first tie members 40 are arranged between the inner leaf wall panel 10 and the middle wall panel 20, and each layer has a plurality of first tie members 40 arranged at intervals (the Y direction in fig. 5 shows the interval direction); a plurality of layers of second pulling-on pieces 41 are arranged between the middle wall plate 20 and the outer leaf wall plate 50, and each layer is provided with a plurality of second pulling-on pieces 41 arranged at intervals. Referring to fig. 5, taking the first fastener 40 as an example, along the extending direction (shown in the X direction in fig. 5) of the first fastener 40, one end of each first fastener 40 is concave-convex fitted with the inner leaf wall panel 10, and the other end is concave-convex fitted with the middle wall panel 20.

Alternatively, the ends of the first tie member 40 are anchored into the inner leaf wall panel 10 and the middle wall panel 20, respectively, the inner leaf wall panel 10 and the middle wall panel 20 being formed of concrete or other cement-based material, i.e. the ends of the first tie member 40 are anchored into the concrete or other cement-based material, respectively. Because both ends of first drawknot piece 40 respectively with interior leaf wallboard 10 and middle part wallboard 20 unsmooth cooperation, set up like this and can improve the bond stress of first drawknot piece 40 in interior leaf wallboard 10 and middle part wallboard 20 to promote interior leaf wallboard 10 and middle part wallboard 20 and resist the lateral pressure in the concrete placement process jointly. Alternatively, both end shapes of the first pulling piece 40 are processed into a concavo-convex shape.

In some possible embodiments, one end of each second pulling element 41 is concave-convex matched with the outer leaf wall plate 50, and the other end is concave-convex matched with the building material poured in the middle wall plate 20 or the first cavity 10 a. That is, the two ends of the second tie member 41 are respectively in concave-convex fit with the outer leaf wall plate 50 and the middle wall plate 20, so that the holding force of the second tie member 41 in the outer leaf wall plate 50 and the middle wall plate 20 can be improved. Or, both ends of the second tie member 41 are respectively in concave-convex fit with the outer leaf wall panel 50 and the building material poured in the first cavity 10a, so that the holding force of the second tie member 41 in the building material poured in the outer leaf wall panel 50 and the first cavity 10a can be improved.

Alternatively, referring to fig. 6 and 7, the first pulling member 40 includes a first body portion 43 extending along the first direction (indicated by X direction in fig. 6 and 7), and optionally, the first body portion 43 has an elongated shape, and a length direction dimension of the first body portion 43 is greater than a width direction dimension (indicated by M direction in fig. 6); in a second direction (indicated by Y direction in fig. 7) perpendicular to the first direction, the first body portion 43 has a front surface 46 and a rear surface 47; at least one first convex part 441 is arranged on the front surface 46 and the back surface 47 of the first body part 43 at one end 44 of the first body part 43, that is, the one end 44 of the first body part 43 is processed into a concave-convex shape, two first convex parts 441 are shown in fig. 7, but the number of the first convex parts 441 is not limited to this, and is selected according to the actual engineering requirements; at the other end 45 of the first body portion 43, the front surface 46 and the back surface 47 of the first body portion 43 are provided with at least one second protrusion 451, that is, the other end 45 of the first body portion 43 is processed into a concave-convex shape, and two second protrusions 451 are shown in fig. 7, but the number of the second protrusions 451 is not limited thereto, and is selected accordingly according to the actual engineering requirements.

In some possible embodiments, at one end of the first body portion 43, the front surface 46 and the back surface 47 of the first body portion 43 are each provided with at least two first protrusions 441, and the adjacent first protrusions 441 on the front surface 46 of the first body portion 43 are different in thickness and the adjacent first protrusions 441 on the back surface 47 of the first body portion 43 are different in thickness along the second direction; at the other end of the first body portion 43, the front surface 46 and the back surface 47 of the first body portion 43 are provided with at least two second protrusions 451, and the thicknesses of the adjacent second protrusions 451 of the front surface 46 of the first body portion 43 and the thicknesses of the adjacent second protrusions 451 of the back surface 47 of the first body portion 43 are different in the second direction. By the arrangement, two ends of the first pulling piece 40 can be better matched with the inner leaf wallboard 10 and the middle wallboard 20 in a concave-convex mode, the holding force of the first pulling piece 40 in the inner leaf wallboard 10 and the middle wallboard 20 can be improved, and therefore the side pressure of the inner leaf wallboard 10 and the middle wallboard 20 in the concrete pouring process is improved.

In some possible embodiments, the front surface 46 or the back surface 47 of one end of the first body portion 43 is provided with at least one first protrusion 441, and the front surface 46 or the back surface 47 of the other end of the first body portion 43 is provided with at least one second protrusion 451.

Alternatively, referring to fig. 6 and 7, the first body portion 43 is flat, and the thickness of the first body portion 43 along the second direction is between 1mm and 3mm, including 1mm and 3mm, such as 1.8mm, 2.2mm, and the like. The first body portion 43 is formed with an inner concave surface 48 at a central region thereof in a direction from the front surface 46 to the rear surface 47 of the first body portion 43 (direction C in fig. 7), the inner concave surface 48 protruding beyond the rear surface 47 of the first body portion 43. The middle area of the first body part 43 can be processed into an inward concave shape by adopting but not limited to a stamping process, so that the strength of the first body part 43 in the weak axis direction (shown in the Y direction in fig. 7) can be effectively increased, the first pulling piece 40 is not easy to deform in the weak axis direction under the action of external force, the effect of enhancing the out-of-plane rigidity of the first pulling piece 40 is achieved, and then the strength of the inner leaf wallboard 10 and the middle wallboard 20 connected together through the first pulling piece 40 is improved.

In some possible embodiments, the thickness of the concave surface 48 protruding the back surface 47 of the first body portion 43 is between 1mm and 3mm, including 1mm and 3mm, such as 1.8mm, 2.2mm, and the like. This is advantageous in that the strength in the weak axis direction of the first body portion 43 is increased with a reduced thickness of the first body portion 43.

In some possible embodiments, the middle region of the first body portion 43 is formed with an inner concave surface 48 in a direction from the back surface 47 to the front surface 46 of the first body portion 43, the inner concave surface 48 protruding the front surface 46 of the first body portion 43. That is, the form of the machined concave surface 48 is the reverse of the above-described embodiment.

Referring to fig. 5, each of the first pulling members 40 is perpendicularly connected to the inner leaf wall panel 10 and the middle wall panel 20, respectively, in a first direction (indicated by X in fig. 5); in the second direction (shown in the Y direction in fig. 5), the first body portions 43 of the adjacent first pulling members 40 are arranged in parallel and face to face. That is, the depth direction of the building wall 1 is parallel to the first body portion 43 and perpendicular to the weak axis direction of the first body portion 43, and the first tie member 40 is disposed in this way, so that the first tie member 40 is prevented from being deformed in the process of transporting the building wall 1 to the site for assembly.

If the first pulling element 40 is connected vertically to the inner leaf panel 10 and the middle panel 20 in such a way that: the depth direction of the building wall 1 is perpendicular to the first body part 43 and parallel to the weak axis direction of the first body part 43, so that the first tie member 40 is easy to deform in the process of transporting the building wall 1 to the site for assembly, and the connection strength between the inner leaf wall panel 10 and the middle wall panel 20 is reduced.

Alternatively, referring to fig. 6, the bottom of the concave inner surface 48 is provided with at least two through holes 49. The at least two through holes 49 serve as a positioning function, so that when the first tie member 40 is installed in the inner leaf wall panel 10 and the middle wall panel 20, the first tie member 40 is maintained in a relatively vertical state with respect to the inner leaf wall panel 10 and the middle wall panel 20 at both ends thereof by corresponding tooling (described in detail later), and the depth of the first tie member 40 inserted into the inner leaf wall panel 10 and the middle wall panel 20 is ensured to be accurate. Because the two points define a straight line, the two holes can help the first fastener 40 to maintain a relatively perpendicular position with respect to the wall panels at the two ends, so as to achieve accurate positioning of the first fastener 40.

Alternatively, the structure of the second fastener member 41 is the same as that of the first fastener member 40, and reference may be made to the description of the first fastener member 40 in conjunction with fig. 6 and 7. The second pulling element 41 comprises a second body portion extending in the first direction, optionally the second body portion is elongated; the second body part has a front surface and a back surface along a second direction perpendicular to the first direction; at least one first convex part is arranged on one end of the second body part, the front surface and the back surface of the second body part, namely, one end of the second body part is processed into a concave-convex shape, and corresponding selection is made according to actual engineering requirements; at least one second convex part is arranged on the other end of the second body part, namely the front surface and the back surface of the second body part, namely the other end of the second body part is processed into a concave-convex shape, but the number of the second convex parts is not limited to the above, and the second convex parts are selected according to the actual engineering requirements.

In some possible embodiments, the front or back surface of one end of the second body part is provided with at least one first protrusion, and the front or back surface of the other end of the second body part is provided with at least one second protrusion.

Optionally, the second body portion is flat, and the thickness of the second body portion along the second direction is between 1mm and 3mm, including 1mm and 3mm, such as 1.8mm, 2.2mm, and the like. The middle region of the second body portion is formed with an inner concave surface protruding the back surface of the second body portion in a direction from the front surface to the back surface of the second body portion. The middle area of the second body part can be processed into an inward concave shape by adopting but not limited to a stamping process, the strength of the second body part in the weak axis direction can be effectively increased, the second pulling part is not easy to deform in the weak axis direction under the action of external force, the effect of enhancing the plane external rigidity of the second pulling part is achieved, and then the strength of the outer leaf wallboard 50 and the middle wallboard 20 connected together through the second pulling part 41 is improved.

In some possible embodiments, the thickness of the rear face 47 of the concave face protruding out of the second body portion is between 1mm and 3mm, including 1mm and 3mm, such as 1.8mm, 2.2mm, etc.

In some possible embodiments, the middle region of the second body part is formed with an inner concave surface protruding from the front surface of the second body part in a direction from the rear surface to the front surface of the second body part. That is, the form of the machined concave surface is opposite to that of the above-described embodiment.

In the first direction, each second tie member 41 is vertically connected to the outer leaf wall panel 50 and the middle wall panel 20, respectively; in the second direction, the second body portions of the adjacent second pulling elements 41 are arranged in parallel and face to face. That is, the depth direction of the building wall 1 is parallel to the second body part and perpendicular to the weak axis direction of the second body part, and the second tie member 41 is arranged in this way, so that the second tie member 41 is prevented from being deformed in the process of transporting the building wall 1 to the site for assembly.

If the second tie member 41 is vertically connected to the outer panel 50 and the middle panel 20 in such a manner that: the depth direction of the building wall 1 is perpendicular to the second body part and parallel to the weak axis direction of the second body part, so that the second tie members 41 are easy to deform in the process of transporting the building wall 1 to the site for assembly, and the connection strength between the outer leaf wall board 50 and the middle wall board 20 is reduced.

Optionally, the bottom of the concave surface is provided with at least two through holes. The at least two through holes serve as a positioning function, when the second tie member 41 is installed in the outer leaf wall plate 50 and the middle wall plate 20, the second tie member 41 is maintained in a relatively vertical state with respect to the outer leaf wall plate 50 and the middle wall plate 20 at both ends thereof by corresponding tooling (described in detail later), and the depth of the second tie member 41 inserted into the outer leaf wall plate 50 and the middle wall plate 20 is ensured to be accurate. Because the two points define a straight line, the two holes can help the second tie member 41 to maintain a relatively perpendicular state with respect to the wall panels at the two ends, so as to achieve accurate positioning of the second tie member 41.

Optionally, with continued reference to fig. 2 and 3, the first portion 11 of the inner leaf panel 10 is parallel to the first portion 21 of the middle panel 20, and a plurality of first tie members 40 between the first portion 11 of the inner leaf panel 10 and the first portion 21 of the middle panel 20 are arranged in parallel and equally spaced; the second portion 12 of the inner leaf wall panel 10 is parallel to the second portion 22 of the middle wall panel 20, and the plurality of first tie members 40 between the second portion 12 of the inner leaf wall panel 10 and the second portion 22 of the middle wall panel 20 are arranged in parallel and at equal intervals; the first portion 51 of the outer leaf panel 50 is parallel to the first portion 21 of the middle panel 20, and the plurality of second tie members 41 between the first portion 51 of the outer leaf panel 50 and the first portion 21 of the middle panel 20 are arranged in parallel and at equal intervals; the second portion 52 of the outer leaf wall panel 50 is parallel to the second portion 22 of the middle wall panel 20, and the plurality of second tie members 41 between the second portion 52 of the outer leaf wall panel 50 and the second portion 22 of the middle wall panel 20 are arranged in parallel and equally spaced.

Alternatively, the interval between the adjacent first pulling members 40 is smaller than the interval between the adjacent second pulling members 41. After the arrangement, the number of the second tie members 41 between the middle wall plate 20 and the outer leaf wall plate 50 can be reduced on the premise that the connection strength between the inner leaf wall plate 10 and the middle wall plate 20 is ensured. In some possible embodiments, when one end of the second pulling member 41 is located in the first cavity 10a, the interval between the adjacent second pulling members 41 may be further increased to reduce the number of the second pulling members 41.

Alternatively, referring to fig. 1 to 3, the first portion 11 of the inner leaf wall panel 10 is flat, the second portion 12 of the inner leaf wall panel 10 is flat, and the first portion 11 of the inner leaf wall panel 10 is longer than the second portion 12 of the inner leaf wall panel 10, i.e. the inner leaf wall panel 10 is formed by joining a longer straight wall section with a shorter straight wall section at the end, and optionally the inner leaf wall panel 10 is "L-shaped", i.e. the first portion 11 of the inner leaf wall panel 10 is perpendicular to the second portion 12 of the inner leaf wall panel 10. The first portion 21 of the middle wall panel 20 is flat, the second portion 22 of the middle wall panel 20 is flat, the first portion 21 of the middle wall panel 20 is longer than the second portion 22 of the middle wall panel 20, i.e. the middle wall panel 20 is formed by splicing a longer straight wall section and a shorter straight wall section at the end, optionally, the middle wall panel 20 is "L-shaped", i.e. the first portion 21 of the middle wall panel 20 is perpendicular to the second portion 22 of the middle wall panel 20. The first portion 51 of the outer leaf panel 50 is straight, the second portion 52 of the outer leaf panel 50 is straight, and the first portion 51 of the outer leaf panel 50 is longer than the second portion 52 of the outer leaf panel 50, i.e., the outer leaf panel 50 is formed by joining a longer straight wall section with a shorter straight wall section at the ends, alternatively, the outer leaf panel 50 is "L-shaped", i.e., the first portion 51 of the outer leaf panel 50 is perpendicular to the second portion 52 of the middle panel 20.

In some possible embodiments, the longer first portion 11 of the inner leaf panel 10 is integrally formed, the longer first portion 21 of the middle panel 20 is integrally formed, and the longer first portion 51 of the outer leaf panel 50 is integrally formed.

In some possible embodiments, referring to fig. 8 and 9, the first portion 11 of the inner leaf wall panel 10 is formed by splicing at least two first sub-portions 11a, one of the first sub-portions 11a being disposed at a first angle to the second portion 12 of the inner leaf wall panel 10. That is, the first portion 11 of the longer inner panel 10 is formed by splicing together shorter sections to facilitate manufacture and installation. The first portion 21 of the middle wall panel 20 is formed by splicing at least two second sub-portions 21a, wherein one second sub-portion 21a is arranged at a second angle to the second portion 22 of the middle wall panel 20. That is, the first portion 21 of the longer central panel 20 is formed by splicing together shorter sections to facilitate manufacture and installation. The first portion 51 of the outer leaf wall panel 50 is formed by splicing at least two third sub-portions 51a, wherein one third sub-portion 51a is arranged at a third angle to the second portion 52 of the outer leaf wall panel 50. That is, the first portion 51 of the longer outer panel 50 is formed by splicing together shorter sections to facilitate manufacture and installation. The first part of the thermal wall panel 60 is formed by splicing at least two fourth subsections 61a, wherein one fourth subsection 61a is arranged at a fourth angle to the second part 62 of the thermal wall panel 60. That is, the first part of the longer insulating wall panel 60 is formed by splicing a plurality of shorter sections, which is advantageous for processing and installation.

Referring to fig. 9, an opening 10b extending along the depth direction of the building wall 1 and communicating with the first cavity 10a is formed between the two first sub-portions 11a, the opening 10b serves as an operation working surface, and a blocking template 11b covers the opening 10 b.

Optionally, the corner cavity (similar to an "L-shaped" cavity) is defined by one of the first sub-portions 11a connected to the second portion 12 of the inner leaf wall panel 10, one of the second sub-portions 21a connected to the second portion 22 of the middle wall panel 20, and the remaining first sub-portions 11a of the inner leaf wall panel 10 and the remaining second sub-portions 21a of the middle wall panel define a straight-section cavity. That is, the first sub-section 11a of the inner leaf wall panel 10 is parallel to the second sub-section 21a of the middle wall panel 20, the second section 12 of the inner leaf wall panel 10 is perpendicular to the first sub-section 11a, and the second section 22 of the middle wall panel 20 is perpendicular to the second sub-section 21 a.

The wall structure reinforcing bars 30 include: the straight section hidden column steel reinforcement framework 31, the straight section wall body steel reinforcement framework 32, the connecting steel reinforcement 33 and the corner hidden column steel reinforcement framework 34; the corner cavity is equipped with corner hidden column steel reinforcement framework 34, the straight section cavity with the adjacent part of corner cavity is equipped with straight section wall steel reinforcement framework 32, the rest of straight section cavity is equipped with straight section hidden column steel reinforcement framework 31, straight section wall steel reinforcement framework 32 with corner hidden column steel reinforcement framework 34 is connected through connecting reinforcement 33. The utility model provides a novel prefabricated accessory of construction, be favorable to accomplishing wall structure reinforcing bar 30's installation in building wall 1.

Wherein, referring to fig. 8, the connecting steel bar 33 is located in the straight cavity before the first part 11 of the inner leaf wall panel 10 and the first part 21 of the middle wall panel 20 are spliced; referring to fig. 9, after the first portion 11 of the inner leaf wall panel 10 and the first portion 21 of the middle wall panel 20 are spliced and formed, the connection of the straight wall body steel reinforcement framework 32 and the corner hidden column steel reinforcement framework 34 is realized by the operation working face that the connection steel reinforcement 33 extends into the corner cavity from the straight section cavity. I.e. the process is repeated. The connecting steel bars 33 are initially retracted into the cavities of the straight sections and extend into the cavities of the corners to be spliced when the wall is spliced. The connecting steel bars 33 in the straight section cavities can extend into the corner cavities which are spliced with each other from the straight section cavities through the operation working face, the steel bar connection work of the two wall bodies is completed, and then the operation working face is blocked by the blocking template 11 b.

Also, the first cavity 10a enclosed by the inner leaf wall plate 10 and the middle wall plate 20 includes an L-shaped cavity and at least two straight-section cavities formed by splicing, the embedded column reinforcing steel bars are integrated in the L-shaped cavity and the straight-section cavity of the head section and the tail section of the first cavity 10a, and the wall reinforcing steel bars are integrated in the straight-section cavity of the middle section of the first cavity 10 a. This is favorable to reducing the installation degree of difficulty and the processing degree of difficulty of the building wall 1 of job site.

As described above, the inner leaf wall panel 10, the middle wall panel 20, the insulation wall panel 60, and the outer leaf wall panel 50 are not integrally formed, but are formed by splicing. In some possible embodiments, one of the inner leaf wall panel 10, the middle wall panel 20, the heat insulation wall panel 60 and the outer leaf wall panel 50 can be formed by splicing, and the rest are integrally formed; or two of the inner leaf wallboard 10, the middle wallboard 20, the heat-insulating wallboard 60 and the outer leaf wallboard 50 are spliced, and the rest are integrally formed; or three of the inner leaf wallboard 10, the middle wallboard 20, the heat-insulating wallboard 60 and the outer leaf wallboard 50 are spliced, and the rest are integrally formed.

Optionally, referring to fig. 3, the first portion 21 and the second portion 22 of the middle wall panel 20 are connected by a third tie member 42 at the connection position, and the structure of the third tie member 42 is the same as that of the first tie member 40, which may be specifically referred to the structural description of the first tie member 40 and will not be repeated herein. The first part 21 and the second part 22 of the middle wall panel 20 are connected by the third tie member 42 at the joint, which can further enhance the strength of the middle wall panel 20, facilitate resisting the lateral pressure generated when the concrete is poured in the first cavity 10a, and better support the thermal insulation wall panel 60, so that the overall strength formed by the structural functional area and the thermal insulation functional area is further improved.

As previously described, the building wall 1 of the present application includes an inner leaf panel 10, a middle panel 20, a thermal insulation panel 60, and an outer leaf panel 50. In some possible embodiments, the building wall may be a panel comprising an inner leaf panel 10 (first panel) and a middle panel 20 (second panel), excluding the insulating panel 60 and the outer leaf panel 50. Middle part wallboard 20 and interior leaf wallboard 10 are connected through a plurality of first drawknot pieces 40 to set up with interior leaf wallboard 10 interval, the one end and the unsmooth cooperation of interior leaf wallboard 10 of each first drawknot piece 40, the other end and the unsmooth cooperation of middle part wallboard 20. In the first direction, each first pulling element 40 is vertically connected to the inner leaf wall panel 10 and the middle wall panel 20 respectively; in the second direction, the first body portions 43 of the adjacent first pulling elements 40 are arranged in parallel and face to face.

In some possible embodiments, the first angle of the first and second portions 11, 12 of the inner leaf panels 10 is 0 ° and the second angle of the first and second portions 21, 22 of the middle panel 20 is 0 °. That is, the first tie member 40 of the present application may be applied not only to a building wall in an "L shape" but also to a building wall in a "line shape". In some possible embodiments, the first tie 40 may also be applied to building walls of other shapes, such as "T-shaped" building walls.

Optionally, the hidden-column reinforcing steel bars in the first cavity 10a can move relative to the building wall 1 along the depth direction, so that the hidden-column reinforcing steel bars have a certain moving space, and if the collision of the hidden-column reinforcing steel bars occurs during hoisting, the collided hidden-column reinforcing steel bars can be corrected easily.

Referring to fig. 10 and 11, each of the front surface 46 and/or the back surface 47 of the first body portion 43 is provided with at least one collar 431, the collar 431 is perpendicular to the first body portion 43, and the stud steel bar is sleeved in the collar 431 along the depth direction and can move relative to the collar 431 along the depth direction. That is, the lantern ring 431 plays a positioning role for the hidden column reinforcing steel bars, prevents the hidden column reinforcing steel bars from toppling over, influences the pouring quality, and does not influence the movement of the hidden column reinforcing steel bars in the depth direction. The first tie member 40 can also replace a tie bar or a single-limb hoop of the frame column wall body 1 to limit the deformation of the hidden column steel bar.

In the present embodiment, two collars 431 are provided on the back surface 47 of the first body portion 43, and the number of collars 431 is not limited thereto. The collar 431 may be provided on the front surface 46 of the first body portion 43. The location and number of the collars 431 are matched with the arrangement form of the hidden column reinforcing steel bars.

Optionally, the hidden column steel bar in the collar 431 can move in the horizontal direction for a set distance, the set distance is not limited, and the set distance is selected according to the construction requirement, for example, 1mm, 2mm, 3mm, and the like. Therefore, the hidden column reinforcing steel bars have certain moving space in the depth direction and the horizontal direction, and collision inspection and correction of the hidden column reinforcing steel bars are facilitated.

In addition, in order to keep the first tie member 40 and the wall panels at the two ends thereof in a relatively vertical state, referring to fig. 12 to 16, the present application also provides a tie member fixing tool 7, including: a mounting portion 70 extending in a longitudinal direction (shown in a direction E in fig. 12 to 14), the mounting portion 70 having a mounting surface 71 for fitting with the first fastener 40, the specific shape of the mounting surface 71 is not limited, and may be a plane surface that can be fitted with the first fastener 40, or alternatively, the mounting surface 71 is a plane surface that is fitted with the first body portion 43 of the first fastener 40; the specific shape of the mounting portion 70 is not limited, and may be a mounting surface 71 that can be attached to the first tie member 40, and alternatively, the mounting portion 70 may be a rectangular tube, and in some possible embodiments, the mounting portion 70 may be a polygonal tube, a circular tube, or the like.

A plurality of sets of first positioning portions 72 are arranged on the mounting surface 71 at intervals along the length direction, each set of first positioning portions 72 includes at least two protrusions 721 arranged at intervals along the width direction (shown in the direction F in fig. 13 to 15), all the protrusions 721 are on the same straight line, an included angle between a connecting line of all the protrusions 721 and the length direction is a set angle, and each protrusion 721 is used for passing through the through hole 49 on the tie member when the first tie member 40 is attached to the mounting surface 71 along the width direction. That is, one set of the first positioning portions 72 corresponds to one first pulling member 40 for positioning the first pulling member 40.

The fastener fixing tool 7 further comprises a second positioning portion 73, the second positioning portion 73 comprises a clamping strip 732 and at least two clamping portions 731, the at least two clamping portions 731 are arranged on the mounting surface 71 at intervals along the length direction, the clamping strip 732 is used for respectively abutting against the first fastener 40 and the clamping portions 731 along the thickness direction (shown in the direction G in fig. 12, 15 and 16) after the through hole 49 of the first fastener 40 is sleeved on the projection 721 and attached to the mounting surface 71, and the movement of the first fastener 40 in the thickness direction is limited so as to mount the first fastener 40 on the fixing tool 7; wherein the thickness direction, the length direction and the width direction are mutually perpendicular.

In other words, all the first pulling members 40 to be mounted are attached to the mounting surface 71 along the width direction, the extending direction (the first direction) of the first pulling members 40 is consistent with the width direction, after the through holes 49 of all the first pulling members 40 are respectively sleeved on the corresponding protrusions 721, the clamping strips 732 are placed in the clamping portions 731, so that the clamping strips 732, the first pulling-connecting piece 40 and the clamping parts 731 are butted in the thickness direction, the number of the clamping strips 732 can be a plurality, the number of the catching strips 732 is selected according to the gap between the catching portion 731 and the first pulling member 40 in the thickness direction, so as to press the first pulling member 40, therefore, the movement of the first pulling member 40 in the thickness direction is restricted, the first pulling member 40 does not come off the projection 721, the first pulling member 40 is mounted on the fixing tool 7, and all the first pulling members 40 are perpendicular to the length direction of the mounting portion 70.

Then, when the first tie members 40 are vertically connected to the wall boards at two ends thereof, as long as it is ensured that the fixing tool 7 extends along the depth direction of the building wall 1, that is, the length direction of the fixing tool 7 is consistent with the depth direction of the building wall 1, all the first tie members 40 on the fixing tool 7 may be perpendicular to the depth direction of the building wall 1, and accordingly, all the first tie members 40 are perpendicular to the inner leaf wall board 10 and the middle wall board 20 extending along the depth direction.

Therefore, use fixed frock 7 of this application can guarantee that first drawknot piece 40 keeps relative vertical state with the wallboard at its both ends for drawknot power between the wallboard at first drawknot piece 40 and its both ends obtains guaranteeing, like this under the effect of first drawknot piece 40, the wallboard at its both ends is drawn together, can resist the lateral pressure that produces when pouring the concrete in the cavity.

Alternatively, the set angle between the line of all the protrusions 721 and the length direction is 90 °, that is, the line of all the protrusions 721 extends in the width direction, and the line of the plurality of through holes 49 on the first tie member 40 also extends in the width direction. The specific values of the angles set between the connection lines of all the bumps 721 and the length direction are not limited, and the following conditions are satisfied: the included angle between the connecting line of all the through holes 49 on the first pulling member 40 and the first direction is consistent with the set angle, the first pulling member 40 is attached to the mounting surface 71 along the width direction, and the through holes 49 on the first pulling member 40 are sleeved on the corresponding protrusions 721. For example, the set angle between the connection line of all the protrusions 721 and the length direction is 10 °, the included angle between the connection line of all the through holes 49 on the first pulling member 40 and the first direction is also 10 °, the first pulling member 40 is attached to the mounting surface 71 along the width direction, and the through holes 49 on the first pulling member 40 are sleeved on the corresponding protrusions 721.

Optionally, the multiple groups of first positioning portions 72 are disposed on the mounting surface 71 at equal intervals along the length direction, so that all the first pulling members 40 are also disposed on the mounting surface 71 at equal intervals along the length direction, which is beneficial to evenly distributing the pulling force of the first pulling members 40 and the wall boards at two ends thereof on the building wall 1.

Alternatively, at least two clamping parts 731 are arranged at intervals along the length direction and are positioned on the same straight line. Alternatively, the connecting lines of all the catching portions 731 extend in the longitudinal direction. Accordingly, the clip strip 732 also extends in the length direction. In some possible embodiments, all the clamping portions 731 may not be located on the same straight line, and the first pulling member 40 may be pressed against the mounting surface 71 by the clamping strip 732.

Optionally, referring to fig. 13, each of the clamping portions 731 and the mounting surface 71 form a notch 733, for clamping the clamping strip 732 into the notch 733. After all the first pulling members 40 are sleeved on the convex blocks 721 of the mounting surface 71, the clamping strips 732 are inserted into the notches 733 between the clamping portions 731 and the mounting surface 71, so that the first pulling members 40 are conveniently mounted on the fixing tool 7. Meanwhile, after all the first tie members 40 are vertically connected with the wall plates at the two ends of the first tie members, the clamping strip 732 is removed from the notch 733, so that the convex block 721 of the mounting part 70 can be conveniently separated from the through hole 49 of the first tie member 40, and the fixing tool 7 can be conveniently removed from the first tie member 40.

Optionally, the opening direction of each notch 733 is the same. This also facilitates insertion of the clip strip 732 into the notch 733 between the clip portion 731 and the mounting surface 71.

Alternatively, referring to fig. 15, each of the catching portions 731 is Z-shaped. Each of the clamping parts 731 includes a first portion 7311, a second portion 7312, and a third portion 7313 connected in sequence; the first portion 7311 is attached to the mounting surface 71 and fixed to the mounting surface 71 by bolts, the second portion 7312 is perpendicular to the mounting surface 71, and the third portion 7313 is parallel to the mounting surface 71 and spaced apart in the thickness direction to form the notch 733. When the first fastener 40 is fixed, the locking strip 732 is inserted into the notch 733 and then abuts against the first fastener 40 and the third portion 7313, respectively, to press the first fastener 40.

It will be understood by those skilled in the art that the shape of the catching portion 731 is not limited thereto, and the catching bar 732 can be inserted between the catching portion 731 and the first pulling member 40 to press the first pulling member 40.

With reference to fig. 14 and 16, the present application also provides a fastener attachment assembly 8 comprising: the fastener fixing tool 7 of any one of the embodiments described above; each of the first pulling members 40 of the above embodiments includes a first body portion 43, the first body portion 43 extends along a first direction, at least two through holes 49 are formed in the first body portion 43 and spaced along the first direction, the through holes 49 of the pulling members are sleeved on the protrusions 721, the first body portion 43 is attached to the mounting surface 71 along a width direction, and the first direction and the width direction are consistent; the engaging strips 732 abut against the first body portion 43 and the engaging portion 731 in the thickness direction, respectively, and the movement of the fastener in the thickness direction is restricted.

The application still provides a building wall 1, including the fixed assembly 8 of the drawknot piece of any above-mentioned embodiment, the length direction of installation department 70 is unanimous with building wall 1's depth direction, and the one end and the unsmooth cooperation of inner leaf wallboard 10 of each first drawknot piece 40, the other end and the unsmooth cooperation of middle part wallboard 20.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, and the specific embodiments thereof are not to be considered as limiting. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (15)

1. A pull tab, comprising:

a first body part extending in a first direction, having one end and the other end, the first body part having a front surface and a rear surface in a second direction perpendicular to the first direction;

at least one first convex part is arranged at one end of the first body part and on the front surface and/or the back surface of the first body part;

at least one second protrusion is disposed on the front surface and/or the back surface of the first body portion at the other end of the first body portion.

2. The fastener of claim 1, wherein the first body portion has a central region formed with an inner concave surface in a direction from the front face to the rear face of the first body portion, the inner concave surface protruding beyond the rear face of the first body portion; or, in a direction from the back surface to the front surface of the first body part, the middle region of the first body part is formed with an inner concave surface protruding from the front surface of the first body part.

3. The fastener of claim 2 wherein the bottom of the concave surface has at least two through holes.

4. The fastener of claim 1 wherein said first body portion is flat.

5. The fastener of claim 2 wherein said first body portion is elongated and has a thickness in said second direction of between 1mm and 3mm, and said recessed surface protrudes beyond said rear or front surface of said first body portion by between 1mm and 3 mm.

6. The fastener of claim 1, wherein at one end of the first body portion, the front and back faces of the first body portion are each provided with at least two first projections, adjacent first projections of the front face of the first body portion differing in thickness in the second direction, and adjacent first projections of the back face of the first body portion differing in thickness; at least two second protrusions are arranged on the front surface and the back surface of the first body part at the other end of the first body part, and the thicknesses of the adjacent second protrusions on the front surface of the first body part are different and the thicknesses of the adjacent second protrusions on the back surface of the first body part are different along the second direction.

7. The fastener of claim 1, wherein the front and/or back of the first body portion is provided with at least one collar perpendicular to the first body portion for receiving the embedded steel bars extending in a depth direction, and the embedded steel bars received in the collar are movable in the depth direction relative to the collar.

8. The fastener of claim 7, wherein the non-ferrous rebar within the collar is movable a set distance in a horizontal direction, the horizontal direction being parallel to the first direction.

9. A building wall, comprising:

the fastener of any one of claims 1 to 8;

a first wall panel;

the second wall plate is connected with the first wall plate through a plurality of the pulling pieces and is arranged at intervals with the first wall plate;

one end of each pulling piece is in concave-convex fit with the first wallboard, and the other end of each pulling piece is in concave-convex fit with the second wallboard.

10. The building wall of claim 9, wherein each of said tie members is perpendicularly connected to said first wall panel and said second wall panel, respectively, in said first direction; along the second direction, the first body parts of the adjacent pulling pieces are arranged in parallel and face to face.

11. The building wall of claim 9, wherein the first wall panel is an inner leaf wall panel, the second wall panel is a middle wall panel, the middle wall panel is connected to the inner leaf wall panel through a plurality of the tie members and encloses a first cavity with the inner leaf wall panel, and the first cavity is provided with wall structure steel bars.

12. The building wall of claim 11, wherein the inner leaf panel includes a first portion and a second portion disposed at a first angle, and the middle panel includes a first portion and a second portion disposed at a second angle;

the first part of the inner leaf wall board is flat and the second part of the inner leaf wall board is flat, the first part of the inner leaf wall board is longer than the second part of the inner leaf wall board, the first part of the inner leaf wall board is formed by splicing at least two first sub-parts, and one first sub-part is arranged at the first angle with the second part of the inner leaf wall board; and/or the presence of a gas in the gas,

the first portion of middle part wallboard is the straight form, the second portion of middle part wallboard is the straight form, the first portion of middle part wallboard is longer than the second portion of middle part wallboard, the first portion of middle part wallboard is formed by at least two second subportions concatenation, one of them the second subportion with the second portion of middle part wallboard is the second angle setting.

13. The building wall according to claim 12, wherein an opening extending in a depth direction of the building wall and communicating with the first cavity is formed between the two first sub-portions, the opening serves as an operation working surface, and a blocking formwork covers the opening.

14. The building wall of claim 13, wherein one of the first subsections connected to the second portion of the inner leaf panel, one of the second subsections connected to the second portion of the middle panel, and the second portion of the middle panel enclose a corner cavity;

the rest first sub-parts of the inner leaf wall plate and the rest second sub-parts of the middle wall plate enclose a straight section cavity;

the wall structure reinforcing bar includes: the straight section hidden column steel bar framework, the straight section wall body steel bar framework, the connecting steel bars and the corner hidden column steel bar framework;

the corner cavity is provided with the corner embedded column steel bar framework, the part of the straight section cavity adjacent to the corner cavity is provided with the straight section wall body steel bar framework, the rest part of the straight section cavity is provided with the straight section embedded column steel bar framework, and the straight section wall body steel bar framework and the corner embedded column steel bar framework are connected through connecting steel bars; wherein the content of the first and second substances,

before the first part of the inner leaf wallboard and the first part of the middle wallboard are spliced to form the connecting steel bar, the connecting steel bar is positioned in the straight section cavity;

the first part of inner leaf wallboard and the first part concatenation of middle part wallboard forms the back, through the operation working face will the connecting reinforcement by straight section cavity stretches into in the corner cavity, realize straight section wall body framework of steel reinforcement with corner hidden column framework of steel reinforcement's connection.

15. The building wall of claim 12, wherein said first angle is 90 ° and said second angle is 90 °.

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