Fabricated building wall framework horizontal pull rod

Abstract

The utility model provides an assembly type building wall framework horizontal pull rod which comprises a threaded pull rod, pull rod supports and locking nuts, the two ends of the threaded pull rod are connected with the pull rod supports, screw holes are formed in the pull rod supports, and the two ends of the threaded pull rod are screwed into the screw holes and fastened by the locking nuts; the pull rod support comprises a connecting part and a mounting part, the screw hole is formed in the connecting part, and the mounting part is connected with a vertical wall framework through a threaded fastener. According to the utility model, the wall body frameworks are conveniently and quickly assembled and connected, the problem that the strength is influenced by welding burn-through of thin walls of keels is avoided, the strength of the wall body frameworks is high, and most of the wall body frameworks are threaded universal parts, so that the manufacturing cost, the logistics cost and the transportation cost are low, and large-scale production is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, in particular to a horizontal member for a prefabricated building wall skeleton. Background Art

[0002] At present, the keels of existing prefabricated building composite walls include vertical and horizontal members, and each parallel vertical keel is connected by a horizontal keel. The horizontal keel is spot-welded to the vertical keel. However, the welding connection needs to be carried out on site, with high labor costs and corresponding equipment required. Moreover, there are requirements for the wall thickness of the vertical keel. If the keel wall is thin, it will cause the welding to burn through and affect the strength of the keel. There is also a "reinforced keel assembly for prefabricated building wall and manufacturing method" disclosed in CN 116378256 A, which adopts a through-assembly method. Holes are opened on the vertical keel and flanges are provided. The horizontal keel passes through the vertical keel and is placed on the flange, and is connected to the flange by screws. There is also a "butt-welded building wall reinforced light steel keel and wall" shown in the utility model CN 217782461U, which connects the horizontal through-connecting member and the vertical keel by bundling; there is also a "light steel wall keel installation structure and installation method" disclosed in CN 111576677A, which adopts an anchor-shaped corner connector to assemble and connect the horizontal and vertical keels. These above-mentioned through-assembly methods are relatively complex in structure and processing, with low production efficiency, high costs, and are not easy to implement. Moreover, the use of long horizontal keels increases the logistics and transportation costs. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a horizontal tie rod for a prefabricated building wall skeleton, which can facilitate and quickly assemble and connect between wall skeletons, avoid the problem that the welding of thin-walled keels burns through and affects the strength, has high wall skeleton strength, and low manufacturing cost, logistics and transportation costs.

[0004] To achieve the above purpose, the technical solution of the connector provided by the utility model is: a horizontal tie rod for a prefabricated building wall skeleton, including a threaded tie rod, a tie rod support, and a locking nut. Both ends of the threaded tie rod are connected to the tie rod support. A threaded hole is provided on the tie rod support. Both ends of the threaded tie rod are screwed into the threaded hole and fastened by the locking nut. The tie rod support includes a connecting part and an installation part. The threaded hole is provided on the connecting part, and the installation part is connected to the vertical wall skeleton by threaded fasteners.

[0005] In the above technical solution, a threaded tie rod is used to connect adjacent wall skeletons through tie rod supports at both ends. By adopting the threaded connection method, there will be no problem that the welding burns through due to the thin wall of the keel, which affects the strength of the keel. The wall skeleton has high strength. Also, since it does not use a transverse long keel or long tie rod that penetrates multiple vertical keels, it is convenient for the packaging and transportation of such transverse members, reducing the logistics cost. Moreover, there is no need to drill holes and flanging on the vertical keels for installing the transverse long keel or long tie rod, reducing the manufacturing cost. Except that the tie rod support is a special part, the rest of the components can use threaded universal parts, with high versatility and low fitting cost. Of course, this kind of transverse tie rod can also be used for the connection between transverse keels.

[0006] Further, as an implementation manner, the connecting portion is a recess with an opening facing the wall skeleton. A nut is fixed on the inner bottom surface of the recess, and the nut communicates with a hole provided on the inner bottom surface to form the screw hole. The mounting portion is located on both sides of the connecting portion. Through this structure, the screw hole for connecting with the threaded tie rod can be formed at low cost, and the tie rod support can be designed as a stamping part, saving materials and processing costs.

[0007] Further, as an implementation manner for saving materials and installation steps, the connecting portion is an L-shaped step. One side surface of the L-shaped step is connected with the mounting portion, and a nut is fixed on the other side surface. The nut communicates with a hole provided on this side surface to form the screw hole. This connection method can connect the tie rod support to the wall skeleton with only one screw.

[0008] Further, the lock nuts are located at both ends of the threaded tie rod. When the lock nuts fasten the ends of the threaded tie rod, they are closely attached to the outer top surface of the recess.

[0009] Further, for the case where the distance between two wall skeletons is relatively far, as an optimized solution, the threaded tie rod is composed of two coaxial ones connected by an adjusting long nut. The relative ends of the first threaded tie rod and the second threaded tie rod are connected to the adjusting long nut, and the other ends of the two threaded tie rods are respectively connected to the tie rod supports. The adjusting long nut also constitutes a part of the tie rod between the two wall skeletons.

[0010] Further, as an optimized solution, the first threaded tie rod and the second threaded tie rod have the same length, so there is no need to distinguish the part specifications, maintaining the identity of processing, which is beneficial to large-scale production and reduces the production cost.

[0011] Further, the mounting support is made of metal material or non-metal material, and mounting holes are provided on the mounting portion.

[0012] Further, the threaded fastener is a self-tapping screw.

[0013] The beneficial effects of the present utility model are as follows: It can facilitate and quickly assemble and connect between wall skeletons, avoid the problem that the thin wall of the keel is burned through during welding, which affects the strength. The wall skeleton has high strength, and most of them are common threaded parts, with low manufacturing cost, low logistics and transportation costs, and are conducive to large-scale production. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model.

[0015] Figure 2 It is a schematic connection diagram of Embodiment 1 of the present utility model and the wall skeleton.

[0016] Figure 3 It is a schematic connection diagram of Embodiment 1 and the wall skeletons on both sides ( Figure 2 right view direction).

[0017] Figure 4 It is a schematic structural diagram of Embodiment 2 of the present utility model.

[0018] Figure 5 It is a schematic structural diagram of Embodiment 3 of the present utility model.

[0019] Figure 6 It is a schematic structural diagram of Embodiment 4 of the present utility model.

[0020] The present utility model will be further described in detail below with reference to the drawings. Specific Embodiments

[0021] Embodiment 1: As Figures 1 to 3 shown, a horizontal tie rod of a prefabricated building wall skeleton 6 includes a threaded tie rod 1, a tie rod support 2 and a locking nut 3. Both ends of the threaded tie rod 1 are connected to the tie rod support 2. A threaded hole is provided on the tie rod support 2. Both ends of the threaded tie rod 1 are screwed into the threaded hole and fastened by the locking nut 3. The tie rod support 2 includes a connecting portion 21 and a mounting portion 22. The threaded hole is provided on the connecting portion 21. The mounting portion 22 is connected to the vertical wall skeleton 6 through a threaded fastener. A mounting hole is provided on the mounting portion 22. In this embodiment, the threaded fastener is a self-tapping screw 7, and the self-tapping screw 7 can more conveniently connect the tie rod support 2 and the wall skeleton 6.

[0022] In this way, the adjacent wall skeletons 6 are connected by the threaded tie rod 1 through the tie rod supports 2 at both ends. By using the threaded connection method, there will be no problem that the welding burns through due to the thin wall of the keel, which affects the strength of the keel. The wall skeleton 6 has high strength. Also, since it does not use a transverse long keel or long tie rod that penetrates multiple vertical keels, it is convenient for the packaging and transportation of such transverse members, reducing the logistics cost. Moreover, there is no need to drill holes and flanging on the vertical keels for installing the transverse long keel or long tie rod, reducing the manufacturing cost. Of course, this kind of transverse tie rod can also be used for the connection between transverse keels and is installed vertically.

[0023] The connecting portion 21 is a recess with an opening facing the wall skeleton 6. A nut 4 is fixed on the inner bottom surface of the recess. The nut 4 communicates with the hole provided on the inner bottom surface to form the screw hole. The mounting portion 22 is located on both sides of the connecting portion 21. With this structure, the screw hole for connecting with the threaded tie rod 1 can be formed at low cost. The tie rod support 2 can be designed as a stamping part made of multiple materials, saving materials and processing costs. Of course, the tie rod support 2 can also be integrally formed of non-metallic materials. As Figure 2 and Figure 3 shown, the lock nuts 3 are located at both ends of the threaded tie rod 1. When the lock nuts 3 fasten the ends of the threaded tie rod 1, they are closely attached to the outer top surface of the recess.

[0024] Embodiment 2: The structure and connection method of this embodiment are basically the same as those of Embodiment 1. The difference is that, as Figure 4 shown, as an implementation method for saving materials and installation steps, the connecting portion 21 is an L-shaped step. One side of the L-shaped step is connected with the mounting portion 22, and the other side is fixed with a nut 4. The nut 4 communicates with the hole provided on this side to form the screw hole. This connection method can connect the tie rod support 2 and the wall skeleton 6 with only one screw.

[0025] Embodiment 3: The structure and connection method of this embodiment are basically the same as those of Embodiment 1. The difference is that, as Figure 5 shown, for the case where the distance between two wall skeletons 6 is relatively far, the threaded tie rod 1 is composed of two coaxial ones connected by an adjusting long nut. The opposite ends of the first threaded tie rod 11 and the second threaded tie rod 12 are connected with the adjusting long nut 5, and the other ends of the two threaded tie rods are respectively connected with the tie rod support 2. The adjusting long nut 5 also constitutes a part of the support tie rod between the two wall skeletons 6. In this embodiment, the lengths of the first threaded tie rod 1 and the second threaded tie rod 1 are the same, so there is no need to distinguish the part specifications, maintaining the consistency of processing, which is beneficial to large-scale production and reduces the production cost.

[0026] Embodiment 4: The structure and connection method of this embodiment are basically the same as those of Embodiment 2. The difference is that, as Figure 6As shown, the threaded tie rod 1 is composed of two coaxial rods connected by an adjusting long nut. The opposite ends of the first threaded tie rod 11 and the second threaded tie rod 12 are connected to the adjusting long nut 5, and the other ends of the two threaded tie rods are respectively connected to the tie rod supports 2. The adjusting long nut 5 also forms a part of the support tie rod between the two wall skeletons 6.

[0027] The tie rod support 2 of the present utility model is standardized and mass-produced in the factory through special molds and equipment. The remaining accessories can use common threaded parts, with high versatility and low accessory costs, and then transported to the construction site for installation. During installation, first use self-tapping screws 7 to fix a tie rod support 2 on the side wall skeleton 6, i.e., the vertical keel or the side of the vertical steel square tube, at a pre-set position, and then insert one end of the threaded tie rod 1 into the screw hole of the tie rod support 2 until it abuts against the wall skeleton 6 on this side; then insert the other end of the threaded tie rod 2 into the screw hole of another tie rod support 2, and rotate the locking nuts 3 at both ends to fasten the two ends of the threaded tie rod 1 to the top surface of the tie rod support 2, and then fix this tie rod support 2 on the wall skeleton 6 on the other side through self-tapping screws.

[0028] The above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit it. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A horizontal tie rod for a prefabricated building wall frame, characterized in that: It includes a threaded tie rod, a tie rod support and a locking nut, wherein both ends of the threaded tie rod are connected to the tie rod support, the tie rod support is provided with screw holes, and both ends of the threaded tie rod are screwed into the screw holes and fastened by the locking nut; the tie rod support includes a connecting part and an installing part, the connecting part is provided with the screw holes, and the installing part is connected to the vertical wall frame through a threaded fastener.

2. The horizontal tie rod of the assembled building wall frame according to claim 1 is characterized in that: The connecting portion is a recessed portion with an opening toward the wall frame. A nut is fixed on the inner bottom surface of the recessed portion. The nut and the hole arranged on the inner bottom surface are connected to form the screw hole. The mounting portion is located on both sides of the connecting portion.

3. The horizontal tie rod of the assembled building wall frame according to claim 1 is characterized in that: The connecting portion is an L-shaped step, one side of the L-shaped step is connected to the mounting portion, and the other side is fixed with a nut, and the nut is connected with a hole arranged on the side to form the screw hole.

4. The horizontal tie rod of the assembled building wall frame according to claim 2 is characterized in that: The locking nuts are located at both ends of the threaded rod. When the locking nuts tighten the ends of the threaded rod, they are closely attached to the outer top surface of the recess.

5. The horizontal tie rod of the assembled building wall frame according to any one of claims 1 to 4, characterized in that: The threaded pull rods are formed by two coaxial lines connected by adjusting long nuts. The opposite ends of the first threaded pull rod and the second threaded pull rod are connected to the adjusting long nuts, and the other ends of the two threaded pull rods are respectively connected to the pull rod supports.

6. The horizontal tie rod of the assembled building wall frame according to claim 5, characterized in that: The first threaded rod and the second threaded rod have the same length.

7. The horizontal tie rod of the assembled building wall frame according to claim 1 is characterized in that: The pull rod support is made of metal material or non-metal material, and the mounting portion is provided with a mounting hole.

8. The horizontal tie rod of the assembled building wall frame according to claim 5, characterized in that: The threaded fastener is a self-tapping screw.

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