Steel bar binding hook

Abstract

The utility model relates to a steel bar binding hook which comprises a binding hook, a connecting block, a ball, a spring assembly and a handle. A plurality of grooves are formed in the surface of the connecting end; the connecting block rotationally sleeves the connecting end of the binding hook, and a mounting hole penetrating to the connecting end is formed in the top of the connecting block; the lower part of the ball is positioned in the groove, and the upper part is positioned in the mounting hole; the spring assembly is arranged in the mounting hole, and the bottom is connected with the ball to apply pressure to the ball; as the number of rotation turns of the binding hook is increased, torsion between the connecting block and the binding hook is gradually increased, when the torsion exceeds a certain value, the ball moves upwards to extrude the spring assembly, the bottom of the ball is separated from the groove, at the moment, the connecting block and the binding hook can rotate relative to each other, the binding hook cannot be rotated through the connecting block, and binding is finished. In this way, the stability and consistency of the torsion can be guaranteed when the reinforcing steel bars are bound every time, the problem that binding is not firm or binding wires are broken due to the fact that the torsion is too small or too large is solved, and therefore the construction quality and the construction efficiency are guaranteed.

Description

Technical Field

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

[0002] In the field of construction, steel bar tying is a basic and critical task, and its quality is directly related to the stability and safety of the building structure. The operation process of steel bar tying is generally carried out by workers using steel bar tying hooks.

[0003] When using traditional steel bar binding hooks for binding, it is extremely dependent on the workers' operating skills. Unskilled workers may cause loose binding due to insufficient rotation of the steel bar binding hook and too small torque, or fatigue and breakage of the binding wire due to too many rotations and excessive torque. These problems affect the construction quality and efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a steel bar binding hook, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A steel bar tying hook, comprising

[0007] A hook having a connecting end, a surface of which is provided with a plurality of grooves;

[0008] A connecting block is rotatably sleeved on the connecting end of the hook, and a mounting hole is provided on the top thereof which penetrates to the connecting end;

[0009] A round ball, the lower part of which is located in the groove, and the upper part of which is located in the mounting hole;

[0010] A spring assembly is arranged in the mounting hole, the bottom of which is connected to the ball and applies pressure to the ball;

[0011] A handle is fixedly connected to the connecting block.

[0012] Optionally, the groove is a trapezoidal structure.

[0013] Optionally, the mounting hole is a round hole, the size of which is adapted to the round ball.

[0014] Optionally, the mounting hole is a square hole, and the spring assembly includes

[0015] A first cushion block is arranged in the mounting hole, has a shape adapted to the mounting hole, and has a circular groove at the bottom, and the circular groove matches the top of the round ball;

[0016] A second cushion block is arranged in the mounting hole, has a shape adapted to the mounting hole, and is located above the first cushion block;

[0017] A spring, two ends of which are respectively connected to the first cushion block and the second cushion block;

[0018] An adjusting knob is arranged outside the mounting hole and is threadedly connected to the second cushion block through a screw;

[0019] Two limit buckles are fixed on both sides of the top of the mounting hole of the connecting block and are used to limit the top of the adjusting knob.

[0020] Optionally, the handle includes

[0021] A bending rod, one end of which is fixedly connected to the connecting block;

[0022] The handle is rotatably sleeved on one end of the bending rod away from the connecting block.

[0023] Optionally, the tying hook and the connecting block as well as the handle and the bending rod are rotatably connected via bearings.

[0024] The utility model provides a steel bar binding hook, which has the following beneficial effects:

[0025] When the torque between the connecting block and the hook is small, the lower part of the ball is located in the groove and the upper part is located in the mounting hole. The connecting block and the hook are connected through the ball, and the connecting block and the hook rotate synchronously. As the number of rotations of the hook increases, the torque between the connecting block and the hook gradually increases. When the torque exceeds a certain value, the ball moves upward to squeeze the spring assembly, the spring assembly contracts, and the bottom of the ball detaches from the groove. At this time, the connecting block and the hook can rotate with each other, and the hook can no longer be rotated by the connecting block, and the binding is completed. In this way, the stability and consistency of the torque when binding the steel bars each time can be ensured, and the problems of loose binding or broken binding wire caused by too small or too large torque can be avoided, thereby ensuring the construction quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the utility model steel bar binding hook;

[0027] Figure 2 This is a schematic diagram of the internal structure of the connection block of the utility model;

[0028] Figure 3 It is a top view of the connecting block of the utility model.

[0029] In the figure: 1. hook; 11. connecting end; 110. groove; 2. connecting block; 21. mounting hole; 3. round ball; 4. spring assembly; 41. first cushion block; 411. round groove; 42. second cushion block; 43. spring; 44. adjusting knob; 45. limit buckle; 5. handle; 51. bending rod; 52. handle; 6. bearing. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the utility model.

[0031] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Example, see Figure 1-3 , a steel bar tying hook, comprising a tying hook 1, a connecting block 2, a round ball 3, a spring assembly 4 and a handle 5;

[0035] The hook 1 has a connecting end 11, and a plurality of grooves 110 are provided on the surface of the connecting end 11; the connecting block 2 is rotatably sleeved on the connecting end 11 of the hook 1, and a mounting hole 21 penetrating to the connecting end 11 is provided on the top; the lower part of the ball 3 is located in the groove 110, and the upper part is located in the mounting hole 21; the spring assembly 4 is arranged in the mounting hole 21, and the bottom is connected to the ball 3 to apply pressure to the ball 3; the handle 5 is fixedly connected to the connecting block 2.

[0036] When tying steel bars, the hook 1 hooks the tying wire and drives the connecting block 2 to rotate through the handle 5, and the connecting block 2 drives the hook 1 to rotate for tying. When the torque between the connecting block 2 and the hook 1 is small, the lower part of the ball 3 is located in the groove 110, and the upper part is located in the mounting hole 21. The connecting block 2 is connected to the hook 1 through the ball 3, and the connecting block 2 and the hook 1 rotate synchronously. As the number of rotations of the hook 1 increases, the torque between the connecting block 2 and the hook 1 gradually increases. When the torque exceeds a certain value, the ball 3 moves upward to squeeze the spring assembly 4, the spring assembly 4 contracts, and the bottom of the ball 3 disengages from the groove 110. At this time, the connecting block 2 and the hook 1 can rotate with each other, and the hook 1 can no longer be rotated by the connecting block 2, and the tying is completed. In this way, the stability and consistency of the torque when tying steel bars can be ensured, and the problems of loose tying or broken tying wire caused by too small or too large torque can be avoided, thereby ensuring the construction quality and efficiency.

[0037] In a specific embodiment, the groove 110 is a trapezoidal structure.

[0038] In a specific embodiment, the mounting hole 21 is a round hole, the size of which is adapted to the round ball 3 , so that the round ball 3 can only move up and down along the mounting hole 21 .

[0039] In a specific embodiment, the mounting hole 21 is a square hole, and the spring assembly 4 includes a first cushion block 41, a second cushion block 42, a spring 43, an adjustment knob 44, and two limit buckles 45;

[0040] The first cushion block 41 is arranged in the mounting hole 21, and its shape is adapted to the mounting hole 21. A circular groove 411 is provided at the bottom. The circular groove 411 cooperates with the top of the round ball 3. The circular groove 411 limits the round ball 3 so that the round ball 3 can only move up and down in the mounting hole 21; the second cushion block 42 is arranged in the mounting hole 21, and its shape is adapted to the mounting hole 21, and is located above the first cushion block 41; the two ends of the spring 43 are respectively connected to the first cushion block 41 and the second cushion block 42; the adjusting knob 44 is arranged outside the mounting hole 21, and is threadedly connected to the second cushion block 42 through a screw; two limit buckles 45 are fixed on both sides of the top of the mounting hole 21 of the connecting block 2, and are used to limit the top of the adjusting knob 44.

[0041] When the adjusting knob 44 is turned, the second cushion block 42 can be driven to move up and down through the screw, thereby adjusting the compression amount of the spring 43, and then adjusting the pressure of the first cushion block 41 on the ball 3. By adjusting the pressure received by the ball 3, the torque value when the connecting block 2 and the hook 1 can rotate with each other can be adjusted.

[0042] In a specific embodiment, the handle 5 includes a bending rod 51 and a handle 52 ; one end of the bending rod 51 is fixedly connected to the connecting block 2 ; the handle 52 is rotatably sleeved on one end of the bending rod 51 away from the connecting block 2 .

[0043] In a specific embodiment, the hook 1 and the connecting block 2 as well as the handle 52 and the bending rod 51 are rotatably connected via a bearing 6 .

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel bar tying hook, characterized in that: include A hook having a connecting end, a surface of which is provided with a plurality of grooves; A connecting block is rotatably sleeved on the connecting end of the hook, and a mounting hole is provided on the top thereof which penetrates to the connecting end; A round ball, the lower part of which is located in the groove, and the upper part of which is located in the mounting hole; A spring assembly is arranged in the mounting hole, the bottom of which is connected to the ball and applies pressure to the ball; A handle is fixedly connected to the connecting block.

2. A steel bar tying hook according to claim 1, characterized in that: The groove is a trapezoidal structure.

3. A steel bar tying hook according to claim 1, characterized in that: The mounting hole is a round hole, the size of which is adapted to the round ball.

4. A steel bar tying hook according to claim 1, characterized in that: The mounting hole is a square hole, and the spring assembly includes A first cushion block is arranged in the mounting hole, has a shape adapted to the mounting hole, and has a circular groove at the bottom, and the circular groove matches the top of the round ball; A second cushion block is arranged in the mounting hole, has a shape adapted to the mounting hole, and is located above the first cushion block; A spring, two ends of which are respectively connected to the first cushion block and the second cushion block; An adjusting knob is arranged outside the mounting hole and is threadedly connected to the second cushion block through a screw; Two limit buckles are fixed on both sides of the top of the mounting hole of the connecting block and are used to limit the top of the adjusting knob.

5. A steel bar tying hook according to claim 1, characterized in that: The handle includes A bending rod, one end of which is fixedly connected to the connecting block; The handle is rotatably sleeved on one end of the bending rod away from the connecting block.

6. A steel bar tying hook according to claim 5, characterized in that: The tying hook and the connecting block as well as the handle and the bending rod are all rotatably connected via bearings.

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