Steel bar binding tool

Abstract

The utility model discloses a reinforcing steel bar binding tool which comprises a reinforcing steel bar hook mechanism for binding adjacent reinforcing steel bars A through a steel wire B. The reinforcing steel bar binding tool comprises a handle, a fixing rod perpendicular to the center of the bottom of the handle, a binding head spirally connected with the fixing rod, steel wire hooks symmetrically distributed at the bottom of the binding head, and a connecting column arranged between the symmetrical steel wire hooks. The pressing rod comprises a connecting rod penetrating through the handle and the fixing rod, a top ball installed at the top end of the connecting rod and an abutting rod installed at the bottom end of the connecting rod, and the outer side, located in the fixing rod, of the connecting rod is provided with an extrusion round block and a contraction spring; the steel bar hook is provided with a twisting stress point C for tightly pressing the steel wire to be rotationally bound, and a pressing rod and an abutting rod which rotate along with the binding head and move in the same direction abut against the stress point C, so that the twisted steel wire B is stressed, and the steel wire B is firmly bound.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar binding tools, in particular to a steel bar binding tool. Background Art

[0002] Rebar is a commonly used steel material in construction projects. In order to firmly fix the rebars together according to the design requirements and spacing to form a stable structure, adjacent rebars need to be bundled. Commonly used rebar bundling tools include rebar hooks, small crowbars, arch wrenches and electric rebar bundling machines. Rebar hooks are a commonly used rebar bundling tool in rebar bundling (tying). Workers can use rebar hooks to easily hook iron wire (binding wire) and rotate it to tie it to the rebar, thereby firmly connecting the rebar together.

[0003] When the rebar hook is used to tie the rebar with steel wire, the hook head is usually hooked on one end of the wire, and the other end of the wire that passes around the rebar will pass around the hooked wire end, and then the rebar hook is rotated. In the above operation, the twisting point of the steel wire is not subjected to tight pressure. In the case of manual rotation, the twisting and binding of the steel wire is not firm enough.

[0004] When the existing steel bar hook is used to manually tie steel bars, there is a problem in the design of the twisting point where the steel wire is tightly pressed and tied by rotation. For this reason, the present application proposes a steel bar tying tool. Utility Model Content

[0005] The purpose of the utility model is to provide a steel bar binding tool to solve the problem in the background art that the steel bar hook does not have a twisting point where the compression wire is rotatably bound.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: a steel bar binding tool, comprising

[0007] A steel bar hook mechanism for bundling adjacent steel bars A with a steel wire B comprises a handle, a fixing rod at the center of the bottom of the handle, a bundling head spirally connected to the fixing rod, and steel wire hooks symmetrically distributed on the bottom of the bundling head, with connecting columns provided between the symmetrical steel wire hooks;

[0008] The pressing rod comprises a connecting rod passing through the handle and the fixed rod, a top ball installed at the top end of the connecting rod and a pressing rod installed at the bottom end of the connecting rod. The connecting rod is provided with an extrusion round block and a contraction spring on the outer side inside the fixed rod.

[0009] Preferably, an annular spiral groove is provided on the outer surface of the fixing rod, a spiral line cooperating with the spiral groove is provided on the inner surface of the strapping head, and evenly distributed toggle rods are provided on the outer surface of the top end of the strapping head.

[0010] Preferably, the centers of the connecting rod and the fixed rod are on the same axis, the fixed rod is perpendicular to the handle, the pressure rod is perpendicular to the connecting rod, and the handle and the fixed rod are provided with circular holes for the connecting rod to pass through, and the outer diameter of the connecting rod is 1 mm larger than the diameter of the circular hole.

[0011] Preferably, the connecting column is curved, and a through hole for the connecting column to pass through is provided on the surface of the connecting rod close to the pressure rod.

[0012] Preferably, the outer surface of the strapping head is rotatably connected to a rotating ring, and the rotating ring and the center of the strapping head are on the same axis.

[0013] Preferably, a limiting elastic rod is provided on the rotating ring, and the limiting elastic rod is a tilted "V"-shaped structure. A fixing stud penetrating the end of the limiting elastic rod is provided on the outer surface of the rotating ring.

[0014] Preferably, one end of the limiting elastic rod is provided with a circular fixing ring, and the other end of the limiting elastic rod is provided with an outward-warping raised end.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the utility model, a design of a twisted force point C where the compressed steel wire is rotatably tied is provided on the steel bar hook. A compression rod is designed to move in the same direction as the tying head rotates, and the pressure rod presses against the force point C, so that the twisted steel wire B is subjected to pressure and is tied firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the fixing rod of the present invention;

[0019] Figure 3 This is a schematic diagram of the top view of the limiting spring rod of the present utility model;

[0020] In the figure: 2, pressing rod; 3, limiting spring rod; 11, handle; 12, fixing rod; 13, tying head; 14, wire hook; 21, top ball; 22, connecting rod; 23, pressure rod; 31, fixing ring; 32, tilting end; 131, rotating ring; 132, fixing stud; 141, connecting column; 221, extrusion block; 222, contraction spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example

[0023] See also Figures 1 to 3 The utility model provides a technical solution: a steel bar binding tool, including a steel bar hook mechanism for binding adjacent steel bars A through steel wire B, including a handle 11, a fixing rod 12 at the bottom center of the vertical handle 11, a binding head 13 spirally connected to the fixing rod 12, and steel wire hooks 14 symmetrically distributed on the bottom of the binding head 13. The handle 11 and the fixing rod 12 are combined by conventional means (such as welding). The binding head 13 and the fixing rod 12 adopt a conventional spiral rotation method. The binding head 13 rotates and moves along the axial direction of the fixing rod 12. The steel wire hook 14 hooks the steel wire B, thereby achieving the binding effect of the steel wire B binding the steel bars A. A connecting column 141 is provided between the symmetrical steel wire hooks 14. The connecting column 141 is connected to the steel wire hook 14 by welding. The connecting column 141 moves with the binding head 13. 41 also drives the connecting rod 22 to move vertically, and the distance between the connecting column 141 and the bottom end of the fixed rod 12 can be adjusted according to actual conditions, so that the movement of the tying head 13 and the connecting column 141 is not affected by the fixed rod 12; the pressing rod 2 includes a connecting rod 22 that passes through the handle 11 and the fixed rod 12, a top ball 21 installed at the top of the connecting rod 22 and a pressure rod 23 installed at the bottom end of the connecting rod 22. The connecting rod 22 is combined with the top ball 21 and the pressure rod 23 by conventional methods (such as welding or threaded connection). The outside of the connecting rod 22 located inside the fixed rod 12 is provided with an extrusion block 221 and a contraction spring 222. The bottom end of the contraction spring 222 is connected to the extrusion block 221. The twisting point of the tied steel wire B is the force point C, and the pressure rod 23 presses against the force point C, so that the twisted steel wire B is subjected to pressure, so that it is tied firmly.

[0024] In this embodiment, an annular spiral groove is provided on the outer surface of the fixing rod 12, and a spiral wire cooperating with the spiral groove is provided on the inner surface of the bundling head 13. The bundling head 13 and the fixing rod 12 are connected by a conventional spiral rotation method. The bundling head 13 rotates and moves along the axial direction of the fixing rod 12. The wire hook 14 hooks the steel wire B, thereby achieving the bundling effect of the steel wire B binding the steel bar A. The outer surface of the top of the bundling head 13 is provided with evenly distributed toggle rods to facilitate the toggle of the bundling head 13.

[0025] In this embodiment, the centers of the connecting rod 22 and the fixed rod 12 are on the same axis, the fixed rod 12 is perpendicular to the handle 11, and the pressure rod 23 is perpendicular to the connecting rod 22. A circular hole for the connecting rod 22 to pass through is provided on the handle 11 and the fixed rod 12. The outer diameter of the connecting rod 22 is 1 mm larger than the diameter of the circular hole, which allows the connecting rod 22 to move vertically smoothly.

[0026] In this embodiment, the connecting column 141 is curved, and a through hole for the connecting column 141 to pass through is provided on the surface of the connecting rod 22 near the pressure rod 23. The connecting column 141 moves with the strapping head 13, and the connecting column 141 also drives the connecting rod 22 to move vertically, so that the pressure rod 23 moves in coordination with the rotation or upward movement of the strapping head 13. The length of the pressure rod 23 itself can be rotated to an appropriate size according to actual needs without affecting the movement of the pressure rod 23. The pressure rod 23 can always be in a state of pressing the force point C.

[0027] In this embodiment, the outer surface of the bundling head 13 is rotatably connected to a rotating ring 131, and the rotating ring 131 is on the same axis as the center of the bundling head 13. A limiting elastic rod 3 is provided on the rotating ring 131, and the limiting elastic rod 3 serves to limit the steel wire B that passes around the steel bar A. The limiting elastic rod 3 is an inverted "V"-shaped structure. The outer surface of the rotating ring 131 is provided with a fixing stud 132 that passes through the end of the limiting elastic rod 3. One end of the limiting elastic rod 3 is provided with a circular fixing ring 31, and the other end of the limiting elastic rod 3 is provided with an outward-warped end 32, which is conducive to the steel wire B penetrating into the position between the limiting elastic rod 3 and the steel bar A.

[0028] The working principle and use process of this utility model:

[0029] When tying the steel bar A, the wire hook 14 of the tying head 13 hooks one end of the steel wire B that passes around the steel bar A, and the other end of the steel wire B that passes around the steel bar A will pass around the hooked steel wire B and then pass around another wire hook 14;

[0030] The twisting point of the tied steel wires B is the force point C, and the pressure rod 23 presses against the force point C, so that the twisted steel wires B are subjected to pressure, making them tied firmly;

[0031] Then, the binding head 13 is rotated and moves along the axis of the fixing rod 12, and the wire hook 14 hooks the steel wire B, thereby achieving the binding effect of the steel wire B binding the steel bar A;

[0032] During the above operation, the twisting point where the steel wire B is tied by rotation, i.e., the force point C, is always under the pressing action of the pressure rod 23;

[0033] To sum up: the design of the twisted force point C on the steel bar hook where the compressed steel wire is rotated and tied is realized. The compression rod 2 is designed to move in the same direction as the tying head 13 rotates, and the pressure rod 23 presses against the force point C, so that the twisted steel wire B is subjected to pressure and is tied firmly.

[0034] Although embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel bar tying tool, characterized by: include A steel bar hook mechanism for bundling adjacent steel bars A through a steel wire B comprises a handle (11), a fixing rod (12) at a center position perpendicular to the bottom of the handle (11), a bundling head (13) spirally connected to the fixing rod (12), and steel wire hooks (14) symmetrically distributed on the bottom of the bundling head (13), wherein connecting columns (141) are provided between the symmetrical steel wire hooks (14); The pressing rod (2) comprises a connecting rod (22) passing through the handle (11) and the fixing rod (12), a top ball (21) installed at the top end of the connecting rod (22), and a pressing rod (23) installed at the bottom end of the connecting rod (22). The connecting rod (22) is provided with an extrusion round block (221) and a contraction spring (222) on the outer side thereof located inside the fixing rod (12).

2. A steel bar tying tool according to claim 1, characterized in that: The outer surface of the fixing rod (12) is provided with an annular spiral groove, the inner surface of the strapping head (13) is provided with a spiral line that matches the spiral groove, and the outer surface of the top end of the strapping head (13) is provided with evenly distributed toggle rods.

3. The steel bar tying tool according to claim 1, characterized in that: The centers of the connecting rod (22) and the fixed rod (12) are on the same axis. The fixed rod (12) is perpendicular to the handle (11). The pressing rod (23) is perpendicular to the connecting rod (22). The handle (11) and the fixed rod (12) are provided with a circular hole for the connecting rod (22) to pass through. The outer diameter of the connecting rod (22) is 1 mm larger than the diameter of the circular hole.

4. The steel bar tying tool according to claim 1, characterized in that: The connecting column (141) is in a curved shape, and a through hole for the connecting column (141) to pass through is provided on the surface of the connecting rod (22) close to the pressing rod (23).

5. The steel bar tying tool according to claim 1, characterized in that: The outer surface of the strapping head (13) is rotatably connected to a rotating ring (131), and the rotating ring (131) and the center of the strapping head (13) are on the same axis.

6. The steel bar tying tool according to claim 5, characterized in that: A limiting elastic rod (3) is provided on the rotating ring (131), and the limiting elastic rod (3) is a tilted "V"-shaped structure. A fixing stud (132) penetrating the end of the limiting elastic rod (3) is provided on the outer surface of the rotating ring (131).

7. The steel bar tying tool according to claim 6, characterized in that: One end of the limiting elastic rod (3) is provided with a circular ring-shaped fixing ring (31), and the other end of the limiting elastic rod (3) is provided with an outward-warping raised end (32).

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