Hand-held reinforcing bar tying device

Abstract

This invention relates to the field of rebar tying technology, and more particularly to a handheld rebar tying device. It includes a handheld rod, a wire storage mechanism, and a tying mechanism. The wire storage mechanism stores tying wires and feeds them one by one to the tying mechanism. The tying mechanism is fixed to the handheld rod and is vertically movable relative to the wire storage mechanism. The handheld rod moves the tying mechanism and the wire storage mechanism synchronously downwards until the wire storage mechanism is against the rebar mesh. Then, the handheld rod lowers the tying mechanism relative to the wire storage mechanism, allowing the tying mechanism to guide the tying wires through and tie the rebar joints. The advantages are that this handheld rebar tying device allows workers to operate upright, reducing labor intensity and preventing injury, enabling workers to work continuously for extended periods and improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of rebar tying technology, and in particular to a handheld rebar tying device. Background Technology

[0002] Rebar tying is an important procedure in the construction industry, and it is currently mostly done manually.

[0003] In existing technologies, there are two methods for manually tying rebar mesh: the first method involves manually tying the rebar nodes by hand using binding wire and tying hooks; the second method involves manually tying each rebar node individually using an electric tying gun. However, both methods require workers to bend over or squat. Due to the large size of the rebar mesh, prolonged bending or squatting while tying all the nodes can easily lead to lower back injuries for workers. Furthermore, workers cannot maintain a bent-over or squatting posture for extended periods and need to stand up and rest intermittently, resulting in low work efficiency. Frequent standing up, squatting, or bending over can also cause knee injuries and increase the workload for workers.

[0004] Therefore, there is an urgent need for a rebar tying device that can reduce the labor intensity of workers, prevent physical injury to workers, and improve tying efficiency. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a handheld rebar tying device, which solves the technical problems of high labor intensity, easy injury to workers and low tying efficiency in the existing manual rebar mesh tying method.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0009] In a first aspect, embodiments of the present invention provide a handheld rebar tying device, comprising a handheld rod, a wire storage mechanism, and a tying mechanism;

[0010] The wire storage mechanism is used to store binding wires and feed them one by one to the binding mechanism;

[0011] The binding mechanism is fixed to the hand handle and is connected to the wire storage mechanism so as to be able to move up and down relative to the wire storage mechanism.

[0012] The hand-held rod drives the binding mechanism and the wire storage mechanism to move down synchronously until the wire storage mechanism is against the steel mesh. Then, the hand-held rod drives the binding mechanism to descend relative to the wire storage mechanism. The binding mechanism is used to drive the binding wire through and bind the steel mesh nodes.

[0013] According to the present invention, the wire storage mechanism includes:

[0014] The wire storage tank has a J-shaped structure that runs vertically through the wire storage tank. The wire storage tank is used to store the binding wires stacked vertically.

[0015] A clamping plate is fixed to the lower part of the wire storage tank, and the clamping plate can clamp a binding wire between itself and the wire outlet at the lower end of the wire storage tank.

[0016] The wire feeding component is located on the wire storage tank and is used to feed the binding wires in the wire storage tank one by one between the clamping plate and the wire outlet.

[0017] According to the present invention, the wire feeder includes:

[0018] A wire storage cover is located inside the wire storage tank and is slidably connected to the wire storage tank body;

[0019] A fixing plate is fixed to the lower part of the wire storage tank and located below the wire storage cover;

[0020] The fixing plate and the wire storage cover are connected by a wire storage spring. The wire storage spring is in a contracted and pre-tightened state, and the wire storage cover is used to push the binding wire in the wire storage tank to move downward.

[0021] According to the present invention, the wire storage mechanism further includes:

[0022] The pressing element is fixed to the bottom of the wire storage tank and is used to press against the steel mesh.

[0023] According to the present invention, the binding mechanism includes:

[0024] A binding and fixing frame is attached to the hand handle.

[0025] Two opposing clamps that can be opened and closed, and the two clamps are connected to the binding and fixing frame for lifting and moving.

[0026] When the hand-held rod lowers the binding and fixing frame and the two clamps, the two clamps are used to lower the binding wire between the clamping plate and the wire outlet until it passes through the rebar node and clamps the binding wire.

[0027] According to the present invention, both clamps include, from top to bottom, a driving section, a rotating section and a clamping section;

[0028] The drive sections of both clamps and the binding and fixing brackets are connected by clamp springs, which extend horizontally.

[0029] The rotating sections of the two clamps are rotatably connected to each other;

[0030] The tying facilities also include:

[0031] The push rod is vertically and movable and is connected to the binding and fixing frame. The push rod is located above the two rotating sections. The push rod is used to push the rotating sections of the two clamps down so that the clamping sections of the two clamps drive the binding wire down.

[0032] According to the present invention, the binding mechanism further includes an opening and closing actuator, the opening and closing actuator comprising:

[0033] Two opening and closing rollers are rotatably connected to the binding and fixing frame, and the two opening and closing rollers are respectively attached to the drive section of the two clamps;

[0034] After the clamping sections of the two clamps drive the binding wire through the rebar node, the binding and fixing frame drives the two opening and closing rollers to descend relative to the two driving sections, so as to drive the two clamping sections to move towards each other and clamp the binding wire.

[0035] According to the present invention, the binding and fixing frame is a hollow structure, and a push rod limiting plate and a push rod are provided inside the binding and fixing frame, with the push rod limiting plate located above the push rod;

[0036] The bottom of the binding and fixing frame is provided with a push rod hole, and the push rod hole is fitted onto the outer periphery of the push rod;

[0037] The putter includes:

[0038] The first push rod has a push rod top plate at its top and a first push rod spring on its outer periphery. The two ends of the first push rod spring abut against the push rod top plate and the bottom of the binding and fixing frame, respectively. The first push rod is a hollow rod.

[0039] The second push rod has its upper part located inside the first push rod, and the top of the second push rod is connected to the top of the inner wall of the first push rod by a second push rod spring.

[0040] According to the present invention, a vertically oriented wire storage slide rail is provided on the outer wall of the wire storage tank, and a slide rail limiting plate is provided on the top of the wire storage slide rail;

[0041] Clamping blocks are installed on the binding and fixing frame, and the clamping blocks hold and slide to the wire storage slide rail.

[0042] According to the present invention, the handheld stick includes:

[0043] Sleeve, which is fixedly connected to the binding mechanism;

[0044] The lower part of the lifting rod is located inside the sleeve and can move up and down relative to the sleeve.

[0045] The handle is rotatably connected to the top of the lifting rod via a universal coupling.

[0046] (III) Beneficial Effects

[0047] The beneficial effects of this invention are:

[0048] The handheld rebar tying device of the present invention allows the worker to hold a handheld rod while standing upright. The handheld rod drives the tying mechanism and the wire storage mechanism to move downwards synchronously. After the wire storage mechanism comes into contact with the rebar mesh, the handheld rod causes the tying mechanism to descend relative to the wire storage mechanism. The tying mechanism then guides the binding wire through and ties the rebar joints, thus achieving the tying of the rebar joints. When tying is complete, the worker holds the handheld rod and moves it upwards to move the tying mechanism and the wire storage mechanism away from the rebar mesh. The worker then walks along the rebar mesh to the next rebar joint to continue tying the next rebar joint.

[0049] As can be seen from the above, this handheld rebar tying device allows workers to operate upright, which reduces the labor intensity of workers and avoids physical injury to workers, enabling workers to work continuously for a long time and improving work efficiency. Attached Figure Description

[0050] Figure 1 This is a perspective view of the handheld rebar tying device of the present invention;

[0051] Figure 2 for Figure 1 Enlarged view of point A in the image;

[0052] Figure 3 for Figure 1 Another perspective illustration;

[0053] Figure 4 for Figure 1 The main view;

[0054] Figure 5 for Figure 1 Side view;

[0055] Figure 6 for Figure 3 A partial schematic diagram;

[0056] Figure 7 for Figure 6 Rear view (the binding and fixing frame is in a semi-sectional state);

[0057] Figure 8 This is a schematic diagram of the push rod (the first push rod is in a semi-sectioned state and the second push rod spring is in an extended state);

[0058] Figure 9 This is a schematic diagram of the push rod (the first push rod is in a semi-sectional state and the second push rod spring is in a retracted state);

[0059] Figure 10 This is a diagram showing the state when the pressing part of the wire storage mechanism abuts against the reinforcing mesh and the two clamps of the binding mechanism enter between the clamping plate and the wire outlet at the lower end of the wire storage tank to clamp the binding wire.

[0060] Figure 11 A diagram showing the state of two clamps pulling the binding wire through the rebar node;

[0061] Figure 12 This is a diagram showing the state when two clamps are tightening the binding wire.

[0062] Figure 13 It is a handheld stick of a certain height;

[0063] Figure 14 For another height of handheld stick.

[0064] [Explanation of Labels in the Attached Image]

[0065] 1: Handheld rod; 11: Sleeve; 111: Sleeve through hole; 12: Lifting rod body; 13: Handle; 14: Telescopic button; 15: Universal coupling; 151: First movable section; 152: Second movable section; 153: Fixed section;

[0066] 2: Binding mechanism; 21: Binding fixing frame; 212: Clamping block; 213: Pulley; 22: Clamp; 221: Drive section; 222: Rotating section; 223: Clamping section; 2231: Clamping protrusion; 224: Clamp limiting block; 23: Push rod; 231: First push rod; 232: First push rod spring; 233: Second push rod; 234: Second push rod spring; 235: Push rod top plate; 24: Opening and closing roller; 25: Push rod limiting plate; 26: Clamp spring;

[0067] 3: Wire storage mechanism; 31: Wire storage tank; 311: Wire storage slide rail; 312: Slide rail limiting plate; 313: Pulley slide rail; 32: Clamping plate; 33: Wire feeding component; 331: Wire storage cover; 332: Fixing plate; 333: Wire storage spring; 34: Pressing component;

[0068] 4: Reinforcing mesh; 41: Reinforcing bar joint;

[0069] 5: Binding wire. Detailed Implementation

[0070] To better explain and facilitate understanding of the present invention, a detailed description of the invention is provided below with reference to the accompanying drawings and specific embodiments. In this document, directional terms such as "upper" and "lower" are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0071] Reference Figure 1-14 The handheld rebar tying device proposed in this embodiment of the invention is used for workers to manually tie rebar nodes 41. The handheld rebar tying device in this embodiment includes a handheld rod 1, a wire storage mechanism 3, and a tying mechanism 2.

[0072] The wire storage mechanism 3 stores the binding wires 5 and feeds them one by one to the binding mechanism 2. The binding mechanism 2 is fixed to the hand-held rod 1 and is movable relative to the wire storage mechanism 3. In use, the worker holds the hand-held rod 1 and remains upright. The hand-held rod 1 moves the binding mechanism 2 and the wire storage mechanism 3 downwards synchronously until the wire storage mechanism 3 is against the reinforcing mesh 4. Then, the hand-held rod 1 lowers the binding mechanism 2 relative to the wire storage mechanism 3, allowing the binding wires 5 to pass through and bind the reinforcing mesh 41, thus achieving the binding of the reinforcing mesh 41. When binding is complete, the worker holds the hand-held rod 1 and moves it upwards to move the binding mechanism 2 and the wire storage mechanism 3 away from the reinforcing mesh 4. The worker then walks along the reinforcing mesh 4 to the next reinforcing mesh 41 to continue binding the next reinforcing mesh 41.

[0073] As can be seen from the above, this handheld rebar tying device allows workers to operate upright, which reduces the labor intensity of workers and avoids physical injury to workers, enabling workers to work continuously for a long time and improving work efficiency.

[0074] Specifically, the binding mechanism 2 is fixed to the bottom of the hand handle 1, and the wire storage mechanism 3 is located on one side of the binding mechanism 2 so that the wire storage mechanism 3 can transport the stored binding wire to the binding mechanism 2.

[0075] Furthermore, the handheld lever 1 includes a sleeve 11, a lifting lever body 12, and a handle 13.

[0076] The sleeve 11 is fixed to the top of the binding mechanism 2. The lower part of the lifting rod 12 is located inside the sleeve 11 and can move up and down relative to the sleeve 11 to adjust the height of the handrail 1, making it convenient for workers of different heights to use. The handle 13 is rotatably connected to the top of the lifting rod 12 via a universal coupling 15, and the handle 13 is used for workers to grip. The handle 13 is rotatable to adjust the angle of the handle 13, making it easy to grip and preventing wrist injuries from prolonged stress.

[0077] Specifically, the side wall of the lifting rod 12 is provided with a telescopic button 14, which can extend and retract in the horizontal direction. The side wall of the sleeve 11 is provided with a plurality of sleeve through holes 111 at intervals in the vertical direction.

[0078] In use, first press the telescopic button 14 on the lifting rod 12 to retract the telescopic button 14. Then, move the lifting rod 12 up and down until the telescopic button 14 on the lifting rod 12 corresponds to a sleeve through hole 111 on the sleeve 11. The telescopic button 14 then extends and passes through the sleeve through hole 111 to fix the position of the lifting rod 12. This allows for convenient adjustment of the height of the handheld rod 1.

[0079] More specifically, the side wall of the lifting rod 12 is provided with a groove to accommodate the telescopic button 14. The telescopic button 14 is connected to the side wall of the groove of the lifting rod 12 by a spring that extends horizontally. When the telescopic button 14 is pressed, the telescopic button 14 enters the groove. At this time, the spring contracts, and the lifting rod 12 can rise and fall relative to the sleeve 11. When the telescopic button 14 is not pressed, the spring rebounds and drives the telescopic button 14 to extend out of the groove on the lifting rod 12, and then pass through the sleeve through hole 111 on the sleeve 11 to fix the position of the lifting rod 12.

[0080] Specifically, the universal coupling 15 includes, from top to bottom, a first movable section 151, a second movable section 152, and a fixed section 153.

[0081] The top of the first movable section 151 is fixed to the handle 13, the bottom of the first movable section 151 is rotatably connected to the second movable section 152, the second movable section 152 is rotatably connected to the top of the fixed section 153, and the bottom of the fixed section 153 is fixed to the lifting rod body 12. Furthermore, the axis of rotation of the first movable section 151 relative to the second movable section 152 is perpendicular to the axis of rotation of the second movable section 152 relative to the fixed section 153. (As shown by the operator facing...) Figure 5 With the orientation of the handle as a reference, the first movable section 151 can rotate in the left and right direction, and the second movable section 152 can rotate in the front and back direction, so that the handle 13 can rotate in different directions, making it easy to adjust the angle of the handle 13.

[0082] More specifically, the first movable section 151 and the second movable section 152 are connected by a pin, and the second movable section 152 and the fixed section 153 are connected by a pin.

[0083] Furthermore, the wire storage mechanism 3 includes a wire storage tank 31, a clamping plate 32, and a wire feeding component 33.

[0084] The wire storage tank 31 has a J-shaped structure that extends vertically. The wire storage tank 31 stores stacked binding wires 5, and the binding wires 5 within the wire storage tank 31 can move downwards along the wire storage tank 31. A clamping plate 32 is fixed to the lower part of the wire storage tank 31, and the clamping plate 32 can clamp a binding wire 5 between itself and the wire outlet at the lower end of the wire storage tank 31. A wire feeding member 33 is provided on the wire storage tank 31, and the wire feeding member 33 is used to feed the binding wires 5 in the wire storage tank 31 one by one between the clamping plate 32 and the wire outlet at the lower end of the wire storage tank 31.

[0085] Specifically, the wire feeding component 33 includes a wire storage cover 331, a fixing plate 332, and a wire storage spring 333.

[0086] The wire storage cover 331 is located inside the wire storage tank 31 and is slidably connected to the wire storage tank 31. The fixing plate 332 is fixed to the lower part of the wire storage tank 31 and is located below the wire storage cover 331. The fixing plate 332 and the wire storage cover 331 are connected by a wire storage spring 333. The wire storage spring 333 is in a contracted and pre-tightened state, and the wire storage cover 331 is used to push the binding wire 5 inside the wire storage tank 31 downward.

[0087] In use, under the preload of the wire storage spring 333, the wire storage cover 331 continuously pushes the binding wire 5 inside the wire storage tank 31 downwards along the wire storage tank 31. Since only one binding wire 5 can be clamped between the clamping plate 32 and the wire outlet at the lower end of the wire storage tank 31, the wire storage cover 331 can only push the binding wire 5 located at the bottom of the wire storage tank 31 to the space between the clamping plate 32 and the wire outlet at the lower end of the wire storage tank 31 each time. After the binding mechanism 2 drives the binding wire 5 between the clamping plate 32 and the wire outlet at the lower end of the wire storage tank 31 to pass through and bind the rebar node 41, the wire storage cover 331 continues to push the binding wire 5 located at the bottom of the wire storage tank 31 to the space between the clamping plate 32 and the wire outlet at the lower end of the wire storage tank 31.

[0088] Specifically, the wire storage mechanism 3 also includes a pressing element 34.

[0089] The pressing member 34 is fixed to the bottom of the wire storage tank 31 and is used to abut against the steel mesh 4.

[0090] When in use, the hand lever 1 drives the binding mechanism 2 and the wire storage mechanism 3 to move down synchronously until the pressing part 34 of the wire storage mechanism 3 abuts against the steel mesh 4. The pressing part 34 can then prevent the wire storage mechanism 3 from moving down further.

[0091] Preferably, the pressing member 34 is a ring structure to stably press against the steel mesh 4.

[0092] Furthermore, the binding mechanism 2 includes a binding and fixing frame 21.

[0093] The binding and fixing frame 21 is fixedly connected to the hand handle 1. Preferably, the binding and fixing frame 21 is a hollow structure.

[0094] Specifically, the binding mechanism 2 also includes two clamps 22.

[0095] Two clamps 22 are positioned opposite each other and can be opened and closed, and are connected to the binding and fixing frame 21 for lifting and lowering. When the hand lever 1 drives the binding and fixing frame 21 and the two clamps 22 to descend, the two clamps 22 are used to drive the binding wire 5 between the clamping plate 32 and the wire outlet at the lower end of the wire storage trough 31 to descend and clamp the binding wire 5 after passing through the rebar node 41.

[0096] Specifically, when the two clamps 22 drive the binding wire 5 to descend, the two clamps 22 and the binding wire 5 can pass through the annular space formed by the pressing member 34.

[0097] When the two clamps 22 move up and down, they can pass through the space between the clamping plate 32 and the wire outlet at the lower end of the wire storage tank 31.

[0098] Specifically, each of the two clamps 22 includes, from top to bottom, a drive section 221, a rotation section 222, and a clamping section 223.

[0099] The drive sections 221 and binding brackets 21 of the two clamps 22 are connected by clamp springs 26, which extend horizontally. The rotating sections 222 of the two clamps 22 are rotatably connected to each other. The clamping sections 223 of the two clamps 22 are used to drive the binding wire 5 through the rebar node 41 and clamp the binding wire 5 to bind the rebar node 41. The rotating sections 222 of the two clamps 22 are preferably connected by pins.

[0100] More specifically, clamping protrusions 2231 are provided on opposite sides of the clamping sections 223 of the two clamps 22. When the clamping sections 223 of the two clamps 22 clamp the binding wire 5, the clamping protrusions 2231 of the two clamps 22 can apply force to the lower part of the binding wire 5 so that the binding wire 5 can form a closed ring.

[0101] More specifically, both clamps 22 have clamp limiting blocks 224 on their drive sections 221. When the clamp spring 26 extends horizontally, the clamp limiting blocks 224 also extend horizontally.

[0102] Specifically, the binding mechanism 2 also includes a push rod 23.

[0103] The push rod 23 is movable and height-adjustable to the binding and fixing frame 21. The push rod 23 is located above the rotating section 222 of the two clamps 22 between the clamping plate 32 and the wire outlet. The push rod 23 is used to push the rotating section 222 of the two clamps 22 to descend so that the clamping section 223 of the two clamps 22 drives the binding wire 5 between the clamping plate 32 and the wire outlet to descend, and drives the binding wire 5 to pass through the rebar node 41.

[0104] When the hand lever 1 drives the binding mechanism 2 to descend until the clamping section 223 of the two clamps 22 is located between the clamping plate 32 and the wire outlet at the lower end of the wire storage trough 31 and clamps the binding wire 5, and the hand lever 1 drives the binding mechanism 2 to continue descending, since the two clamps 22 and the binding fixing frame 21 are connected by a flexible connection through the clamp spring 26, it is difficult for the two clamps 22 to directly apply pressure to the binding wire 5 and drive the binding wire 5 through the rebar node 41. However, the push rod 23 can apply pressure to the rotating section 222 of the two clamps 22 so that the two clamps 22 can drive the binding wire 5 to descend and pass through the rebar node 41.

[0105] Furthermore, the binding and fixing frame 21 is internally provided with a push rod limiting plate 25 and a push rod 23, with the push rod limiting plate 25 located above the push rod 23. The bottom of the binding and fixing frame 21 is provided with a push rod hole, which is fitted around the outer periphery of the push rod 23.

[0106] Specifically, push rod 23 includes a first push rod 231 and a second push rod 233.

[0107] A push rod top plate 235 is provided at the top of the first push rod 231. A first push rod spring 232 is sleeved on the outer periphery of the first push rod 231. The two ends of the first push rod spring 232 abut against the push rod top plate 235 and the bottom of the binding and fixing frame 21, respectively. The first push rod spring 232 is used to support the first push rod 231 and prevent the first push rod 231 from shifting downward due to gravity. The first push rod 231 is a hollow rod. The upper part of the second push rod 233 is located inside the first push rod 231, and the top of the second push rod 233 and the top of the inner wall of the first push rod 231 are connected by a second push rod spring 234. The second push rod 233 is used to apply pressure to the rotating section 222 of the two clamps 22.

[0108] When the hand lever 1 lowers the binding mechanism 2 until the clamping section 223 of the two clamps 22 is located between the clamping plate 32 and the wire outlet at the lower end of the wire storage trough 31 and clamps the binding wire 5, the push rod limiting plate 25 on the binding fixing frame 21 presses against and drives the push rod 23 to descend. The push rod 23 also applies pressure to the rotating section 222 of the two clamps 22 so that the two clamps 22 drive the binding wire 5 through the rebar node 41. After the two clamps 22 drive the binding wire 5 through the rebar node 41, the two clamps 22 cannot move further down due to the restriction of the rebar node 41. The rotating section 222 of the two clamps 22 applies a pushing force to the second push rod 233 of the push rod 23 pressing against it, pushing the second push rod 233 to move upward relative to the first push rod 231. At this time, the second push rod spring 234 contracts.

[0109] Specifically, the binding mechanism 2 also includes an opening and closing actuator, which includes:

[0110] Two opening and closing rollers 24 are rotatably connected to the binding and fixing frame 21, and the two opening and closing rollers 24 are respectively attached to the drive section 221 of the two clamps 22.

[0111] After the clamping sections 223 of the two clamps 22 drive the binding wire 5 through the rebar node 41, the position of the two clamps 22 is fixed and cannot continue to descend due to the restriction of the rebar node 41. The binding fixing frame 21 drives the two opening and closing rollers 24 to descend relative to the driving sections 221 of the two clamps 22, so as to drive the driving sections 221 of the two clamps 22 to move in opposite directions, thereby driving the clamping sections 223 of the two clamps 22 to move towards each other and clamp the binding wire 5.

[0112] More specifically, the contact surfaces between the drive sections 221 of the two clamps 22 and the two opening and closing rollers 24 are inclined surfaces. When the two opening and closing rollers 24 descend relative to the drive sections 221 of the two clamps 22, that is, the two opening and closing rollers 24 move down along the inclined surfaces of the two drive sections 221 and drive the two drive sections 221 to move in opposite directions, thereby driving the two clamping sections 223 to move towards each other and clamp the binding wire 5.

[0113] Furthermore, to facilitate the lifting and lowering movement of the binding mechanism 2 relative to the wire storage mechanism 3, the wire storage mechanism 3 and the binding mechanism 2 also include the following features:

[0114] The outer wall of the wire storage tank 31 of the wire storage mechanism 3 is provided with a vertically oriented wire storage slide rail 311, and a slide rail limiting plate 312 is provided at the top of the wire storage slide rail 311. A clamping block 212 is provided on the binding and fixing frame 21 of the binding mechanism 2, and the clamping block 212 clamps and slides along the wire storage slide rail 311. The binding and fixing frame 21 moves up and down along the wire storage slide rail 311 of the wire storage tank 31 via the clamping block 212, and the slide rail limiting plate 312 at the top of the wire storage slide rail 311 is used to limit the upward movement position of the binding and fixing frame 21. Preferably, wire storage slide rails 311 and slide rail limiting plates 312 are provided on both sides of the outer wall of the wire storage tank 31, and clamping blocks 212 are provided on both sides of the binding and fixing frame 21 to improve the stability of the binding mechanism 2 when moving up and down relative to the wire storage mechanism 3.

[0115] Preferably, a pulley 213 is rotatably connected to the binding and fixing frame 21. The binding and fixing frame 21 slides along the outer wall of the wire storage tank 31 via the pulley 213, facilitating the movement of the binding and fixing frame 21. Preferably, a vertically oriented pulley rail 313 is provided on the outer wall of the wire storage tank 31, and a groove is provided on the circumferential side wall of the pulley 213. When the pulley 213 on the binding and fixing frame 21 rolls along the outer wall of the wire storage tank 31, the groove on the pulley 213 can roll along the pulley rail 313. More preferably, two pulleys 213 are respectively arranged vertically and vertically on both sides of the binding and fixing frame 21, and pulley rails 313 are respectively provided on both sides of the outer wall of the wire storage tank 31 to improve the stability of the binding mechanism 2 when it moves up and down relative to the wire storage mechanism 3.

[0116] Furthermore, the binding wire 5 has an M-shaped structure. When the clamping sections 223 of the two clamps 22 move towards each other and clamp the binding wire 5, the upper part of the clamping sections 223 of the two clamps 22 presses the two top ends of the binding wire 5 and causes the two ends of the binding wire 5 to contract towards each other. The clamping protrusions 2231 of the two clamps 22 apply force to the lower part of the binding wire 5 so that the two ends of the binding wire 5 tighten around the rebar node 41 to form a closed loop, so as to bind the rebar node 41.

[0117] It should be noted that since this handheld rebar tying device is operated manually, it can tie both flat rebar mesh 4 and other shapes such as curved surfaces, making it widely applicable.

[0118] Furthermore, for better explanation, the working principle of the handheld rebar tying device in this embodiment is as follows:

[0119] S1: Adjust the height of the hand lever 1: Press the telescopic button 14 on the lifting lever 12, move the lifting lever 12 to a suitable height and when the telescopic button 14 on the lifting lever 12 corresponds to a sleeve through hole 111 on the sleeve 11, the telescopic button 14 extends and passes through the sleeve through hole 111 to fix the position of the lifting lever 12.

[0120] S2: Adjust the angle of handle 13 by rotating universal coupling 15.

[0121] S3: The worker holds the handle 13 of the hand lever 1 and drives the binding mechanism 2 and the wire storage mechanism 3 to descend synchronously through the hand lever 1. After the pressing part 34 of the wire storage mechanism 3 abuts against the steel mesh 4, the pressing part 34 prevents the wire storage mechanism 3 from moving further down.

[0122] S4: As the hand lever 1 continues to drive the binding mechanism 2 to descend, the binding mechanism 2 descends relative to the wire storage mechanism 3. When the binding mechanism 2 descends to the point where the clamping sections 223 of the two clamps 22 enter between the clamping plate 32 and the wire outlet at the lower end of the wire storage trough 31 of the wire storage mechanism 3 and clamp the binding wire 5, the hand lever 1 continues to drive the binding mechanism 2 to descend. The push rod limiting plate 25 on the binding fixing frame 21 drives the push rod 23 to descend, so that the push rod 23 applies pressure to the rotating sections 222 of the two clamps 22, thereby enabling the two clamps 22 to drive the binding wire 5 to descend and pass through the rebar node 41.

[0123] S5: When the two clamps 22 lower the binding wire 5 away from the clamping plate 32 and the wire outlet at the lower end of the wire storage trough 31, and pass through the rebar node 41, the rebar node 41 prevents the two clamps 22 from continuing to descend. When the hand lever 1 continues to lower the binding mechanism 2, the binding fixing frame 21 descends relative to the two clamps 22, and the clamp spring 26 connecting the two clamps 22 and the binding fixing frame 21 tilts and extends. At the same time, the rotating section 222 of the two clamps 22 applies a pushing force to the second push rod 233 of the push rod 23 pressing against it, pushing the second push rod 233 to move upward relative to the first push rod 231, and the second push rod spring 234 connecting the second push rod 233 and the first push rod 231 retracts. At the same time, the binding and fixing frame 21 drives the two opening and closing rollers 24 to move relative to each other and down along the inclined surface of the driving section 221 of the two clamps 22, so as to drive the driving section 221 of the two clamps 22 to move in opposite directions, thereby driving the clamping section 223 of the two clamps 22 to move towards each other to clamp the binding wire 5.

[0124] S6: When the clamping sections 223 of the two clamps 22 move toward each other, they squeeze the two top ends of the binding wire 5 and cause the two ends of the binding wire 5 to contract toward each other. The clamping protrusions 2231 of the two clamps 22 apply force to the lower part of the binding wire 5 so that the two ends of the binding wire 5 are tightened around the rebar node 41 to form a closed ring, so as to bind the rebar node 41.

[0125] S7: The hand lever 1 drives the binding mechanism 2 to rise. Since the rotating section 222 of the two clamps 22 is clamped by the binding wire 5 and cannot rise, when the binding fixing frame 21 drives the two opening and closing rollers 24 to rise, the two opening and closing rollers 24 rise relative to each other and along the inclined surface of the driving section 221 of the two clamps 22, so as to drive the driving section 221 of the two clamps 22 to move towards each other, thereby driving the clamping section 223 of the two clamps 22 to move away from each other and loosen the binding wire 5.

[0126] S8: After the clamping sections 223 of the two clamps 22 move in opposite directions to loosen the binding wire 5, the hand lever 1 drives the binding mechanism 2 to continue to rise. The clamp spring 26 connecting the two clamps 22 and the binding fixing frame 21 returns and drives the two clamps 22 to rise. At the same time, the upward thrust applied by the rotating section 222 of the two clamps 22 to the second push rod 233 of the push rod 23 disappears. The second push rod spring 234 connecting the second push rod 233 and the first push rod 231 returns and drives the second push rod 233 to return.

[0127] When the binding and fixing frame 21 moves the two opening and closing rollers 24 upwards until the two opening and closing rollers 24 abut against the clamp limit blocks 224 on the two clamps 22, the two opening and closing rollers 24 can drive the two clamps 22 to rise synchronously.

[0128] When the clamping block 212 on the binding and fixing frame 21 rises along the wire storage slide rail 311 of the wire storage tank 31 until the clamping block 212 abuts against the slide rail limit plate 312 set at the top of the wire storage slide rail 311 of the wire storage tank 31, the hand lever 1 drives the binding mechanism 2 to continue to rise, and the clamping block 212 of the binding mechanism 2 applies an upward pushing force to the slide rail limit plate 312 and drives the wire storage mechanism 3 to move upward synchronously.

[0129] S9: The hand lever 1 drives the binding mechanism 2 to continue rising, and the two clamps 22 move upward, passing through the rebar node 41 and leaving the space between the clamping plate 32 and the wire outlet at the lower end of the wire storage tank 31. Subsequently, the wire storage spring 333 of the wire storage mechanism 3 returns and drives the wire storage cover 331 to push the binding wire 5 in the wire storage tank 31 downward along the wire storage tank 31, so as to push the binding wire 5 located at the bottom of the wire storage tank 31 to the space between the clamping plate 32 and the wire outlet at the lower end of the wire storage tank 31.

[0130] S10: The worker moves the handheld pole 1 to the lower rebar node of the steel mesh 4.

[0131] S11: Repeat steps S3-S10 multiple times to complete the binding of the entire steel mesh.

[0132] As can be seen from the above, this handheld rebar tying device does not require a power supply, hydraulic mechanism, air source mechanism or other power supply and drive device. The operator only needs to hold the handheld rod 1 and drive the handheld rod 1 to move up and down to tie the rebar node 41, which saves energy.

[0133] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0134] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0135] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0136] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A handheld rebar tying device, characterized in that, It includes a hand-held rod (1), a wire storage mechanism (3), and a binding mechanism (2); The wire storage mechanism (3) is used to store binding wires (5) and feed the binding wires (5) one by one to the binding mechanism (2); The binding mechanism (2) is fixed to the hand handle (1), and the binding mechanism (2) is connected to the wire storage mechanism (3) in a way that allows it to move up and down relative to the wire storage mechanism (3). The hand-held rod (1) drives the binding mechanism (2) and the wire storage mechanism (3) to move down synchronously until the wire storage mechanism (3) abuts against the steel mesh (4). Then, the hand-held rod (1) drives the binding mechanism (2) to descend relative to the wire storage mechanism (3). The binding mechanism (2) is used to drive the binding wire (5) through and bind the steel bar node (41). The wire storage mechanism (3) includes a wire storage tank (31) and a clamping plate (32); the clamping plate (32) is capable of clamping a binding wire (5) between itself and the wire outlet at the lower end of the wire storage tank (31); The binding mechanism (2) includes a binding fixing frame (21) and two opposing clamps (22) that can be opened and closed. The binding and fixing frame (21) is fixed to the hand handle (1); The two clamps (22) are movable and lifting connected to the binding and fixing frame (21); Each clamp (22) comprises, from top to bottom, a drive section (221), a rotating section (222), and a clamping section (223); the drive sections (221) of the two clamps (22) and the binding and fixing frame (21) are connected by clamp springs (26), which extend horizontally; the rotating sections (222) of the two clamps (22) are rotatably connected to each other; The binding mechanism (2) further includes an opening and closing actuator, the opening and closing actuator comprising: Two opening and closing rollers (24) are rotatably connected to the binding and fixing frame (21), and the two opening and closing rollers (24) are respectively attached to the drive section (221) of the two clamps (22). After the clamping sections (223) of the two clamps (22) drive the binding wire (5) through the rebar node (41), the binding fixing frame (21) drives the two opening and closing rollers (24) to descend relative to the two driving sections (221) so as to drive the two clamping sections (223) to move towards each other and clamp the binding wire (5).

2. The handheld rebar tying device as described in claim 1, characterized in that, The wire storage tank (31) is a J-shaped structure that runs vertically through the wires. The wire storage tank (31) is used to store the binding wires (5) stacked vertically. The clamping plate (32) is fixedly connected to the lower part of the wire storage tank (31); The wire feeding component (33) is disposed on the wire storage tank (31). The wire feeding component (33) is used to feed the binding wires (5) in the wire storage tank (31) one by one into the space between the clamping plate (32) and the wire outlet.

3. The handheld rebar tying device as described in claim 2, characterized in that, The wire feeder (33) includes: A wire storage cover (331) is located inside the wire storage tank (31) and is slidably connected to the wire storage tank (31). A fixing plate (332) is fixedly connected to the lower part of the wire storage tank (31) and located below the wire storage cover (331); The fixing plate (332) and the wire storage cover (331) are connected by a wire storage spring (333). The wire storage spring (333) is in a contracted and pre-tightened state. The wire storage cover (331) is used to push the binding wire (5) in the wire storage groove (31) downward.

4. The handheld rebar tying device as described in claim 2, characterized in that, The wire storage mechanism (3) further includes: A pressing member (34) is fixed to the bottom of the wire storage tank (31) and is used to abut against the steel mesh.

5. The handheld rebar tying device as described in claim 2, characterized in that, The binding mechanism (2) includes: When the hand lever (1) drives the binding and fixing frame (21) and the two clamps (22) to descend, the two clamps (22) are used to drive the binding wire (5) between the clamping plate (32) and the wire outlet to descend and clamp the binding wire (5) after passing through the rebar node (41).

6. The handheld rebar tying device as described in claim 5, characterized in that, The binding mechanism (2) also includes: A push rod (23) is vertically and movablely connected to the binding and fixing frame (21), and the push rod (23) is located above the two rotating sections (222). The push rod (23) is used to push the rotating sections (222) of the two clamps (22) to descend so that the clamping sections (223) of the two clamps (22) drive the binding wire (5) to descend.

7. The handheld rebar tying device as described in claim 6, characterized in that, The binding and fixing frame (21) is a hollow structure. Inside the binding and fixing frame (21) are a push rod limiting plate (25) and a push rod (23). The push rod limiting plate (25) is located above the push rod (23). The bottom of the binding and fixing frame (21) is provided with a push rod hole, and the push rod hole is sleeved on the outer periphery of the push rod (23); The push rod (23) includes: The first push rod (231) has a push rod top plate (235) at its top and a first push rod spring (232) sleeved on its outer periphery. The two ends of the first push rod spring (232) abut against the push rod top plate (235) and the bottom of the binding and fixing frame (21) respectively. The first push rod (231) is a hollow rod. The upper part of the second push rod (233) is located inside the first push rod (231), and the top of the second push rod (233) and the top of the inner wall of the first push rod (231) are connected by a second push rod spring (234).

8. The handheld rebar tying device as described in claim 5, characterized in that, The outer wall of the wire storage tank (31) is provided with a vertically oriented wire storage slide rail (311), and the top of the wire storage slide rail (311) is provided with a slide rail limiting plate (312). The binding and fixing frame (21) is provided with a clamping block (212), which clamps and slides on the wire storage slide rail (311).

9. The handheld rebar tying device as described in claim 1, characterized in that, The handheld lever (1) includes: Sleeve (11), the sleeve (11) is fixedly connected to the binding mechanism (2); The lower part of the lifting rod (12) is located inside the sleeve (11) and can move up and down relative to the sleeve (11); The handle (13) is rotatably connected to the top of the lifting rod (12) via a universal coupling (15).

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