CN210947734U

CN210947734U - Combined fastener

Info

Publication number: CN210947734U
Application number: CN201920353471.9U
Authority: CN
Inventors: 曾令国
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-07-07
Anticipated expiration: 2029-03-20

Abstract

The utility model discloses a combined fastener, which comprises a D-shaped pipe, a fastener and at least two lead screws, wherein the D-shaped pipe is provided with at least two through holes, the number of the lead screws is equal to or less than that of the through holes on the D-shaped pipe, and the lead screws penetrate through the corresponding through holes on the two D-shaped pipes; the fastening piece is matched with the screw rod and arranged on the outer side of the D-shaped pipe, and the plane on the D-shaped pipe is arranged on the inner side face of the D-shaped pipe. The utility model discloses a combination formula fastener, the cost is reduced.

Description

Combined fastener

Technical Field

The utility model relates to a fastener field especially relates to a modular fastener.

Background

In traditional building construction, square timber is used as secondary keel attaching templates for template support of a shear wall or a column body, two steel pipes are connected in a binding mode to be used as main keels, and wall penetrating screw rods are matched to fix the templates. The square timber is as perpendicular thick stick, and 2 steel pipes are as the whippletree, through the support system of wall lead screw and the female fastening of chevron card and chevron, and the support system is promptly to be provided with multilayer bearing structure in the vertical direction of shear force wall or cylinder. Taking a certain middle column wall as an example, the wall surfaces in four directions corresponding to each layer of supporting structure of the column body need 2 steel pipes respectively, each wall surface needs 2 mountain-shaped clamps, then 8 steel pipes, 4 lead screws, 8 mountain-shaped clamps and 8 nuts are needed in total, and each mountain-shaped clamp is used for stably matching the two steel pipes together and locking the two steel pipes through the nuts. The steel pipe fixing device has the advantages that the number of applied steel pipe materials is large, the number of accessories is large, the cost is increased, at least two persons are needed for operation in fixing the steel pipe, time and labor are wasted, and the working efficiency is low; and there is a significant potential safety hazard in the demolition process.

Those skilled in the art have therefore endeavored to develop a cost effective combination fastener.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a combined fastener with reduced cost.

In order to achieve the above object, the present invention provides a combined fastener, which comprises a D-shaped tube, a fastener and at least two lead screws, wherein the D-shaped tube is provided with at least two through holes, the number of the lead screws is equal to or less than the number of the through holes on the D-shaped tube, and the lead screws pass through the corresponding through holes on the two D-shaped tubes; the fastening piece is matched with the screw rod and arranged on the outer side of the D-shaped pipe, and the plane on the D-shaped pipe is arranged on the inner side face of the D-shaped pipe.

Preferably, the screw rod is provided with two fastening pieces, the fastening pieces are nuts, and the two fastening pieces are respectively arranged on the outer sides of the two D-shaped pipes.

Preferably, one end of the screw rod is fixedly provided with an abutting part, and the abutting part is positioned on the outer side of one of the D-shaped pipes; the fastener is arranged on the outer side of the other D-shaped pipe.

Preferably, a non-slip mat is arranged between the fastener and the D-shaped pipe.

Preferably, the minimum radial dimension of the through hole is larger than the outer diameter of the screw rod.

Preferably, the through hole is in a strip shape.

Preferably, a positioning structure is arranged between the fastener and the D-shaped pipe, and the shape of the inner side surface of the positioning structure is matched with the arc shape of the outer side surface of the D-shaped pipe.

Preferably, the positioning structure is integrally formed with the fastener.

The utility model has the advantages that: the combined fastener of the utility model has simpler structure, saves steel, fittings and reduces cost; the installation is more convenient, the scattering is not easy, and the safety is higher; the manpower resource is saved, the working efficiency is improved, and the construction period is advanced by 1-2 months.

Drawings

Fig. 1 is a schematic structural view of a combined fastener according to an embodiment of the present invention.

Fig. 2 is a schematic view of another embodiment of the present invention.

FIG. 3 is a schematic view of the combination fastener positioning structure of FIG. 1.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

example one

As shown in fig. 1, the utility model discloses a combined fastener, which comprises a D-shaped pipe 1, a fastener 2 and at least two lead screws 3, wherein the D-shaped pipe 1 is provided with at least two through holes 4, the number of the lead screws 3 is equal to or less than the number of the through holes 4 on the D-shaped pipe 1, and the lead screws 3 pass through the corresponding through holes 4 on the two D-shaped pipes 1; the fastener 2 is matched with the screw rod 3 and is arranged on the outer side of the D-shaped pipe 1, and the plane on the D-shaped pipe 1 is arranged on the inner side surface 5 of the D-shaped pipe 1. The number of the through holes is set according to actual requirements, so that the number of the screw rods and the fasteners is determined according to the number of the through holes. When the number of the screw rods is equal to that of the through holes in the D-shaped pipe, the D-shaped pipe and the screw rods are configured as required in actual application; when the number of the screw rods is smaller than that of the through holes in the D-shaped pipe, an operator can reasonably select the through holes according to actual needs and then install and connect the screw rods through the through holes. Set to the plane on the medial surface of D type pipe, when fastening, be favorable to with the laminating of square timber fixed die plate, increase area of contact for the fixed die plate is inseparabler with wall body subsides, the thickness of better control wall body. The combined fastener of the utility model can save half of steel, does not need a mountain-shaped clamp, has simpler structure and greatly reduced cost, is more convenient to install, saves time and labor; in the dismantling process, the fasteners are loosened in a rotating mode, the scattering of a plurality of traditional D-shaped pipes in the dismantling process is reduced, and the safety is high.

In this embodiment, two fastening members 2 are disposed on the screw rod 3, the fastening members 2 are nuts, and the two fastening members 2 are disposed on the outer sides of the two D-shaped pipes 1 respectively. This is achieved by fastening the D-tube with two fasteners 2 on the lead screw. In a specific embodiment, the two fasteners 2 are movably connected with the screw rod 3; or one fastener 2 of the two fasteners 2 is fixedly connected with the screw rod 3, and the other fastener 2 is movably connected with the screw rod 3.

In the present embodiment, a non-slip pad 6 is disposed between the fastener 2 and the D-shaped pipe 1. The anti-slip mat is arranged, so that not only can the tight connection between the fastening piece and the D-shaped pipe be realized, but also the slipping between the fastening piece and the D-shaped pipe can be prevented.

In the present embodiment, the minimum radial dimension of the through-hole 4 is larger than the outer diameter of the screw 3. So that the screw rod can pass through the through hole of the D-shaped pipe.

In the present embodiment, the cross-sectional shape of the through-hole 4 is a long strip. In other embodiments, the cross-sectional shape of the through hole 7 may be circular, oval or other figures, but is not limited thereto.

As shown in FIG. 3, a positioning structure 7 is arranged between the fastening member 2 and the D-shaped pipe 1, and the shape of the inner side surface of the positioning structure 7 is matched with the arc shape of the outer side surface of the D-shaped pipe 1.

In this embodiment, the locating structure 7 is made integral with the fastener 2.

In the present embodiment, the fastening member 2 is, for example, a hill nut, a flange nut, a wing nut, or other types of nuts, and is not limited herein.

In the present invention, the inside of the D-shaped pipe means that the space between the two D-shaped pipes in the assembled state in the figure is the inside, and the outside of the D-shaped pipe is the space in the opposite direction to the inside of each D-shaped pipe; the expressions of the inner and outer sides of the other parts correspond to the aforementioned expressions.

Example two

The structural principle of the present embodiment is basically the same as that of the first embodiment, except that the present embodiment does not include the feature that the screw rod 3 is provided with two fastening members 2, and the two fastening members 2 are respectively arranged on the outer sides of the two D-shaped pipes 1. The embodiment is mainly provided with a butting part fixed on the screw rod, and the screw rod is matched through a fastener. Specifically, as shown in fig. 2, one end of the screw rod 3 is fixedly provided with an abutting piece 8, and the abutting piece 8 is located on the outer side of one of the D-shaped pipes 1; the fastening member 2 is arranged outside the other D-shaped pipe 1. The fixed butt piece that sets up in the one end of lead screw, the butt piece can be directly carry out spacing fixed to the adjacent D type pipe that advances on the lead screw, and another D type pipe rethread fastener is fixed, and not only easy to assemble, the quick dismantlement that can also realize just can accomplish the installation and dismantle, labour saving and time saving even alone.

In this embodiment, the inner side surface of the abutting member 8 is a concave card, and the concave portion of the concave card is used for clamping the D-shaped pipe to fix and limit the D-shaped pipe. In other embodiments, the outer side surface of the D-shaped pipe 1 is arc-shaped, and the concave portion of the concave card is arc-shaped.

The combined fastener of the utility model takes a cylinder wall with a square cross section as an example, when a layer of supporting structure is arranged on the cylinder wall, the cylinder wall is limited between two D-shaped pipes by applying the combined fastener of the invention, because the D-shaped pipes are provided with through holes, a screw rod passes through the through holes which are correspondingly arranged on the two D-shaped pipes, and the square wood fixing template is tightly attached to the surface of the cylinder wall by screwing the fastener and the screw rod together, in practical application, taking a cylinder wall with a square or rectangular cross section as an example, the whole surface of the cylinder wall is provided with a plurality of layers of supporting mechanisms from top to bottom, each layer of supporting mechanism needs two groups of combined fasteners to be stacked up and down and arranged in a positive intersection way, for example, two through holes are symmetrically arranged on the D-shaped pipe which is used for fixing each wall, at the moment, each group of combined fasteners comprises two screw rods, 2 fasteners are required); then each layer of supporting mechanism needs 4D-shaped pipes, 8 fasteners and 4 lead screws to stably support the wall body by the square wood fixed template, and 4 steel materials and 8 mountain-shaped clamping parts are saved. The combined fastener of the utility model can also be applied to shear walls or other production and living applications, and is not limited by the application.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A combined fastener is characterized in that: the device comprises a D-shaped pipe (1), a fastener (2) and at least two screw rods (3), wherein at least two through holes (4) are formed in the D-shaped pipe (1), the number of the screw rods (3) is equal to or less than that of the through holes (4) in the D-shaped pipe (1), and the screw rods (3) penetrate through the corresponding through holes (4) in the two D-shaped pipes (1); the fastening piece (2) is matched with the screw rod (3) and arranged on the outer side of the D-shaped pipe (1), and the plane on the D-shaped pipe (1) is arranged on the inner side surface (5) of the D-shaped pipe (1).

2. The combination fastener of claim 1 wherein: the screw rod (3) is provided with two fastening pieces (2), the fastening pieces (2) are nuts, and the two fastening pieces (2) are respectively arranged on the outer sides of the two D-shaped pipes (1).

3. The combination fastener of claim 1 wherein: one end of the screw rod (3) is fixedly provided with an abutting part (8), and the abutting part (8) is positioned on the outer side of one D-shaped pipe (1); the fastening piece (2) is arranged on the outer side of the other D-shaped pipe (1).

4. The combination fastener of claim 1 wherein: and an anti-slip pad (6) is arranged between the fastener (2) and the D-shaped pipe (1).

5. The combination fastener of claim 1 wherein: the minimum radial dimension of the through hole (4) is larger than the outer diameter of the screw rod (3).

6. The combination fastener of claim 5 wherein: the through holes (4) are in a long strip shape.

7. The combination fastener of claim 1 wherein: a positioning structure (7) is arranged between the fastener (2) and the D-shaped pipe (1), and the shape of the inner side surface of the positioning structure (7) is matched with the arc shape of the outer side surface of the D-shaped pipe (1).

8. The combination fastener of claim 7 wherein: the positioning structure (7) and the fastener (2) are integrally manufactured.