Modularized single-side operation fastener

Abstract

The utility model discloses a modularization unilateral operation fastener, including opposite-pull rod, adjusting screw and opposite-pull nut, opposite-pull rod is cylindrical structure, the one end of opposite-pull rod is provided with internal thread counter bore, adjusting screw is external screw structure, the one end of adjusting screw is fastened in the internal thread counter bore of opposite-pull rod, the opposite-pull rod and adjusting screw are coaxial, and the opposite-pull nut is fixed on the opposite-pull rod. The opposite-pull nut is fastened on the adjusting screw rod through the free end of the adjusting screw rod, the free end of the opposite-pull rod is provided with an overturning block which overturns under the influence of gravity, a rotating shaft of the overturning block is perpendicular to and intersected with the axis of the opposite-pull rod, and the gravity center of the overturning block is not collinear with the rotating shaft of the overturning block. According to the device, a single-side eccentric gravity overturning structure is adopted, the opposite-pull rod directly overturns according to the self weight after penetrating through a hole in a wall body, single-side automatic opposite-pull is achieved, all installation operations can be completed on one side through the fastener, and in the environment where high-altitude operation is needed, repeated high-altitude operation is avoided, and meanwhile the installation efficiency is improved. And automatic eccentric opposite pulling can be directly carried out in the stone veneer.

Description

Technical Field

[0001] The utility model relates to the field of fasteners, in particular to a modular single-side operation fastener. Background Art

[0002] When the distribution box is built on the secondary masonry wall, it needs to be installed and stressed by tension anchor bolts. In actual use, there may be other construction requirements on the wall opposite to the distribution box installation. When using conventional tension anchor bolts, such as hanging stone veneer on the wall, the project needs to be delayed, which leads to an extension of the construction period. At the same time, during the secondary masonry, due to the need to use buried plates, when used at a higher position, the installation of tension bolts requires high-altitude work on both sides of the wall, which undoubtedly increases the workload and repeated high-altitude work will also increase the possibility of accidents.

[0003] At the same time, due to the different wall thicknesses, the general tension bolt structure is difficult to meet the length adjustment requirements. It needs to be cut into multiple specifications such as 200, 240, 300 mm, etc. according to the actual wall thickness, which increases the actual parts processing operation requirements.

[0004] A modular single-side operating fastener is now needed to solve the above problems. Utility Model Content

[0005] The utility model is to solve the problem that in the prior art, a distribution box needs to be installed and stressed by means of tension anchor bolts when it is built on a secondary masonry wall. In actual use, there may be other construction requirements on the wall opposite to the installation of the distribution box. When using conventional tension anchor bolts, for example, projects such as hanging stone veneers on the wall need to be carried out with a lag. At the same time, the fastener structure needs to be an adjustable structure according to various wall requirements. A modular single-sided operating fastener is provided, which realizes single-sided automatic tensioning based on gravity flipping, thereby solving the above-mentioned problem.

[0006] The utility model provides a modular single-side operation fastener, including a tie rod, an adjusting screw and a tie nut. The tie rod is a cylindrical structure. One end of the tie rod is provided with an internal threaded countersunk hole. The adjusting screw is an external screw structure. One end of the adjusting screw is fastened in the internal threaded countersunk hole of the tie rod. The tie rod and the adjusting screw are coaxial. The tie nut is tightened by the free end of the adjusting screw. The rotational freedom of the rotating block is 360 degrees around the rotation axis. The rotation axis of the flip block is perpendicular to and intersects the axis of the tie rod. The center of gravity of the flip block is not colinear with the rotation axis of the flip block.

[0007] The utility model describes a modular single-sided operating fastener, as a preferred embodiment, the tension rod includes a flip block, a structural rod, a mounting screw hole, a receiving groove and a flip axis, the structural rod is a cylindrical rod body, one end of the structural rod is provided with a mounting screw hole along the axis, the mounting screw hole and the structural rod are coaxial, the receiving groove is a through groove, which is provided at the other end of the structural rod, the sum of the receiving groove depth and the mounting screw hole depth is less than or equal to the length of the structural rod, the flip axis is provided in the middle of the receiving groove perpendicular to the direction of the receiving groove, the flip block is a strip-shaped block, the flip block is provided between the receiving grooves through the flip axis, the length from the farthest edge of the flip block to the axis of the flip axis is less than or equal to the depth of the receiving groove and greater than or equal to the radius of the structural rod, and the center of the flip block is not colinear with the rotation center of the flip block.

[0008] The modular single-side operation fastener described in the utility model is preferably configured such that the mounting screw hole is connected to the bottom of the receiving groove, and an expansion tube connected to the mounting screw hole is provided at the bottom of the receiving groove.

[0009] The modular single-side operation fastener described in the utility model is preferably configured such that the flip block is an axisymmetric block, and the position where the flip axis connects the flip block is not colinear with the center of the flip block.

[0010] The modular single-side operation fastener described in the utility model is preferably configured such that the flip block is an axisymmetric block with a counterweight hole, and the flip axis connecting the flip block position is colinear with the flip block center.

[0011] The beneficial effects of the utility model are as follows:

[0012] The device adopts a single-side eccentric gravity flip structure, so that the tie rod can flip directly according to its own weight after passing through the hole in the wall, realizing single-side automatic tensioning. This allows the fastener to complete all installation operations on one side. In an environment where high-altitude operations are required, repeated high-altitude operations can be avoided. At the same time, automatic eccentric tensioning can be directly performed inside the stone veneer, avoiding the problem of using traditional tension bolts and having to wait until the actual installation period has passed before installing the stone veneer.

[0013] At the same time, the device can adjust the actual total length of the device through the tightening adjustment between the screw and the tie rod to meet the needs of various wall thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a modular single-side operated fastener;

[0015] Figure 2 A schematic diagram of a modular single-side operated fastener tie rod.

[0016] Reference numerals:

[0017] 1. Tension rod; 11. Flip block; 12. Structural rod; 13. Mounting screw hole; 14. Accommodating groove; 15. Flip axis; 2. Adjusting screw; 3. Tension nut. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Example 1

[0020] like Figure 1 As shown, a modular single-side operation fastener includes a tension rod 1, an adjusting screw 2 and a tension nut 3. The tension rod 1 is a cylindrical structure, one end of the tension rod 1 is provided with an internal threaded countersunk hole, the adjusting screw 2 is an external screw structure, one end of the adjusting screw 2 is fastened in the internal threaded countersunk hole of the tension rod 1, the tension rod 1 and the adjusting screw 2 are coaxial, the tension nut 3 is fastened to the adjusting screw 2 through the free end of the adjusting screw 2, the free end of the tension rod 1 is provided with a flip block that flips under the influence of gravity, the rotational freedom of the flip block is 360 degrees around the rotation axis, the rotation axis of the flip block is perpendicular to and intersects the axis of the tension rod 1, and the center of gravity of the flip block is not colinear with the rotation axis of the flip block.

[0021] like Figure 2 As shown, the tension rod 1 includes a flip block 11, a structural rod 12, a mounting screw hole 13, a receiving groove 14 and a flip axis 15. The structural rod 12 is a cylindrical rod body. The mounting screw hole 13 is arranged along the axis at one end of the structural rod 12. The mounting screw hole 13 is coaxial with the structural rod 12. The receiving groove 14 is a through groove, which is arranged at the other end of the structural rod 12. The sum of the depth of the receiving groove 14 and the depth of the mounting screw hole 13 is less than or equal to the length of the structural rod 12. The flip axis 15 is arranged in the middle of the receiving groove 14 perpendicular to the direction of the receiving groove 14. The flip block 11 is a strip block. The flip block 11 is arranged between the receiving grooves 14 through the flip axis 15. The length from the farthest edge of the flip block 11 to the axis of the flip axis 15 is less than or equal to the depth of the receiving groove 14 and is greater than or equal to the radius of the structural rod 12. The center of the flip block 11 is not colinear with the rotation center of the flip block 11.

[0022] In this embodiment, the flip block 11 is an axisymmetric block, and the flip axis 15 connecting the flip block 11 is not colinear with the center of the flip block 11 .

[0023] Example 2

[0024] On the basis of Example 1, the mounting screw hole 13 is connected to the bottom of the receiving groove 14 , and an expansion tube connected to the mounting screw hole 13 is provided at the bottom of the receiving groove 14 .

[0025] Example 3

[0026] Different from the first embodiment, in the present embodiment, the flip block 11 is an axisymmetric block with a counterweight hole, and the flip axis 15 connecting the flip block 11 is colinear with the center of the flip block 11 .

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A modular single-side operating fastener, characterized in that: The invention comprises a tension rod (1), an adjusting screw (2) and a tension nut (3); the tension rod (1) is a cylindrical structure; one end of the tension rod (1) is provided with an internal threaded countersunk hole; the adjusting screw (2) is an external screw structure; one end of the adjusting screw (2) is fastened in the internal threaded countersunk hole of the tension rod (1); the tension rod (1) and the adjusting screw (2) are coaxial; the tension nut (3) is fastened to the adjusting screw (2) through the free end of the adjusting screw (2); the free end of the tension rod (1) is provided with a flip block that flips under the influence of gravity; the rotational freedom of the flip block is 360 degrees around the rotation axis; the rotation axis of the flip block is perpendicular to and intersects the axis of the tension rod (1); the center of gravity of the flip block is not colinear with the rotation axis of the flip block.

2. A modular single-side operation fastener according to claim 1, characterized in that: The tension rod (1) comprises a flip block (11), a structural rod (12), a mounting screw hole (13), a receiving groove (14) and a flip shaft (15); the structural rod (12) is a cylindrical rod body; one end of the structural rod (12) is provided with the mounting screw hole (13) along the axis; the mounting screw hole (13) is coaxial with the structural rod (12); the receiving groove (14) is a through groove, which is provided at the other end of the structural rod (12); the sum of the depth of the receiving groove (14) and the depth of the mounting screw hole (13) is less than or equal to the depth of the structural rod ( 12) length, the flip axis (15) is arranged in the middle of the receiving groove (14) perpendicular to the direction of the receiving groove (14), the flip block (11) is a strip-shaped block, the flip block (11) is arranged between the receiving grooves (14) through the flip axis (15), the length from the farthest edge of the flip block (11) to the axis of the flip axis (15) is less than or equal to the depth of the receiving groove (14) and greater than or equal to the radius of the structural rod (12), and the center of the flip block (11) is not colinear with the rotation center of the flip block (11).

3. A modular one-side operation fastener according to claim 2, characterized in that: The mounting screw hole (13) is connected to the bottom of the accommodating groove (14), and an expansion tube connected to the mounting screw hole (13) is provided at the bottom of the accommodating groove (14).

4. A modular single-side operation fastener according to claim 2, characterized in that: The flip block (11) is an axisymmetric block, and the flip axis (15) connecting the flip block (11) is not collinear with the center of the flip block (11).

5. A modular single-side operation fastener according to claim 2, characterized in that: The flip block (11) is an axisymmetric block with a counterweight hole, and the flip axis (15) connects the position of the flip block (11) and is collinear with the center of the flip block (11).

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