A reinforcing bar tying device and a method of using the same

Abstract

This invention discloses a rebar tying device and its usage method, relating to the field of construction technology. It can reach into narrow areas that are difficult to access manually and tie rebars there. The tying device includes an upper main rod and a lower clamping end. The top of the main rod has a fixed handle and an adjusting handle. Inside the main rod are a control rod and a guide gear. The control rod is connected to the adjusting handle, and the bottom of the control rod has a spiral control end. The gear has a hollow spiral groove and a connecting tooth at the bottom. The clamping end has retractable guide grooves on both sides. The left retractable guide groove contains a wire pusher block and a wire pusher return spring. The right retractable guide groove contains a tying hook, a tying hook control gear, and a tying hook return spring. This rebar tying device and its usage method allow for single-handed wire wrapping and tying without the need for other tools. It is simple to operate, requires little working space, and is suitable for tying in narrow locations, reducing construction difficulty and improving tying quality.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a rebar tying tool and its usage method. Background Technology

[0002] Currently, construction projects typically require a large amount of steel reinforcement, leading to arduous rebar tying work. Existing rebar tying methods usually involve manual operation of tying hooks or electric tying devices. However, when manually using tying hooks and wires, workers must hold the wire in one hand, insert it below the tying point, and pull it out from the other side. The other hand holds the tying hook, grabs the folded end of the wire, and pulls it out. Both hands work together to rotate and tie the wire, making the operation very inconvenient and prone to causing injuries from other tying points. Electric tying devices are similar to wall structures, but they are large, heavy, and expensive, and in practice, they can only be used for tying some surface nodes. For areas with limited space, where manual tying is difficult to access and where the tying point is deep, neither manual tying hooks nor electric tying devices can effectively tie the nodes. Summary of the Invention

[0003] The technical problem to be solved by this invention is to design a rebar tying tool that can be used for tying rebars in areas with narrow operating spaces, where it is difficult for manual hands to reach deep into the area, and where the tying position is relatively deep. This invention provides a rebar tying tool and its method of use that solve the above problems.

[0004] This invention is achieved through the following technical solution:

[0005] A rebar tying device includes an upper main rod and a lower clamping end. The upper main rod includes a main rod housing, a fixed handle, an adjusting handle, a control rod, a convex structure of the control rod, a spiral control end of the rod, a guide gear, a guide gear return spring, and a wire storage box. A hole is formed in the lower part of the main rod housing. The fixed handle is fixedly connected to the main rod housing. The adjusting handle is located in the plane where the main rod housing and the fixed handle are located and is connected to the upper end of the control rod. The lower end of the control rod is connected to the spiral control end of the rod. The spiral control end of the rod passes through the guide gear return spring and the guide gear, respectively, and the guide gear return spring is fixed in a limiting groove. The wire storage box is located on the lower left side of the main shaft housing of the binding device; the lower clamping end of the binding device includes a left wire feeding mechanism and a right binding mechanism. The left wire feeding mechanism includes a left retractable guide groove, a wire push block return spring, a left upper connecting steel plate, a left lower connecting steel plate, a left connecting steel plate limit pin, a wire push block convex structure, and a wire push groove. The right binding mechanism includes a right retractable guide groove, a binding hook return spring, a right upper connecting steel plate, a right lower connecting steel plate, a right connecting steel plate limit pin, a binding hook, a binding hook control convex structure, and a binding hook control gear.

[0006] Furthermore, the fixed handle is fixed to the outer shell of the main rod of the binding device, with space reserved in the middle for adjusting the movement of the handle. A rectangular hole is opened along the length direction at the lower part of the outer shell of the main rod of the binding device. The length of the hole allows the handle to be moved downward to push and retrieve the steel wire, and the handle to be moved upward to complete the binding of the steel wire. The width of the hole is wide enough to accommodate the convex structure connecting the control web rod.

[0007] Furthermore, along the length of the main rod housing of the binding device, a center hole is opened above the limiting groove where the guide gear return spring is fixed, with a hole diameter of 1.2 times the diameter of the control rod. A groove is opened below the limiting groove to place the guide gear and the guide gear return spring.

[0008] Furthermore, the guide gear has a helical groove inside, the length of which is the same as the height of the guide gear, and the diameter of which is the same as the diameter of the spiral control end of the web rod. The upper part of the guide gear is a plane that connects with the guide gear return spring, and the lower part of the guide gear has a rotating gear.

[0009] Furthermore, the spiral control end of the control rod is located at the lower part of the control rod, the spiral diameter is the same as the diameter of the inner groove of the guide gear, and is 1.2 times the diameter of the control rod, and the moving direction of the control rod is the same as the length direction of the guide gear.

[0010] Furthermore, the left-side wire feeding mechanism includes a left-side retractable guide chute, a wire pusher block return spring, a left-side upper connecting steel plate, a left-side lower connecting steel plate, a left-side connecting steel plate limiting pin, a wire pusher block convex structure, and a wire pusher groove. The left-side retractable guide chute is arc-shaped and has a guide groove inside. The wire pusher block convex structure and the wire pusher block return spring are placed in the groove. The wire pusher block return spring is located to the left of the wire pusher block convex structure. A hole is opened in the left-side plane of the left-side retractable guide chute, with the height of the hole being the height of the wire pusher groove. A hole is also opened in the upper plane, with the height of the hole being the diameter of the wire pusher block convex structure.

[0011] Furthermore, the convex structure of the wire pusher block passes through the hole opened on the upper plane of the left retractable guide slide and the lower circular hole of the left lower connecting steel plate and is fixed thereto. The upper circular hole of the left lower connecting steel plate and the lower circular hole of the left upper connecting steel plate are connected and fixed by the left connecting steel plate limiting pin. The left connecting steel plate limiting pin limits the maximum included angle between the left upper connecting steel plate and the left lower connecting steel plate to 135°. The upper circular hole of the left upper connecting steel plate is fitted onto the convex structure of the control web rod connection and fixed thereto.

[0012] Furthermore, the right-side binding mechanism includes a right-side retractable guide groove, a binding hook return spring, a right-side upper connecting steel plate, a right-side lower connecting steel plate, a right-side connecting steel plate limiting pin, a binding hook, a binding hook control convex structure, and a binding hook control gear. The right-side retractable guide groove is arc-shaped and has a guide groove inside. The binding hook control gear, the binding hook control convex structure, the binding hook, and the binding hook return spring are placed in the groove. The left side of the right-side retractable guide groove has an opening with a height equal to the maximum length of the binding hook tip and the round rod. The upper plane has an opening with a height equal to the diameter of the binding hook control convex structure. The binding hook return spring is located to the left of the binding hook control convex structure in the groove. The binding hook control convex structure and the hollow cube with a round hole on the left and a square hole on the right at the lower part form an integral whole. The binding hook control gear is provided inside the cube so that the binding hook passes through the round hole on the left.

[0013] Furthermore, the binding hook control convex structure passes through the hole opened on the upper plane of the right retractable guide slide and the lower circular hole of the right lower connecting steel plate and is fixed thereto. The upper circular hole of the right lower connecting steel plate and the lower circular hole of the right upper connecting steel plate are connected and fixed by the right connecting steel plate limiting pin. The right connecting steel plate limiting pin limits the maximum included angle between the right upper connecting steel plate and the right lower connecting steel plate to 135°. The upper circular hole of the right upper connecting steel plate is fitted onto the control web rod connecting convex structure for fixation.

[0014] Furthermore, the wire storage box is placed on the left side of the lower end of the main shaft housing of the binding device, and the wire is fed out from the bottom of the storage box so that the bent section of the wire is in the wire pushing groove.

[0015] A method for tying reinforcing bars, using any of the reinforcing bar tying devices described above, includes the following steps:

[0016] S1. Fold the steel wire in half, with one end of the steel wire being the folded end and the other end being the free end including the two wire ends. Place the folded steel wire into the steel wire storage box and make one steel wire extend from the bottom opening of the steel wire storage box, with the extended part of the folded end of the steel wire reaching the steel wire pushing groove.

[0017] S2. Place four fingers into the adjustment handle groove, grasp the fixed handle, and extend the lower clamping end of the binding device toward the binding node. After extending into the binding node, move the adjustment handle at the top of the binding device downward, so that the control bar convex structure moves downward by the same distance. Then, through the drive of the upper left connecting steel plate, the left connecting steel plate limit pin and the lower left connecting steel plate, the wire push block convex structure and the wire push groove move downward along the left retractable guide slide, so that the wire appears at the binding hook hook position, and at the same time, the wire push block reset spring is compressed.

[0018] S3. During the downward movement of the control web rod connecting convex structure, the binding hook controls the convex structure through the driving action of the upper right connecting steel plate, the right connecting steel plate limiting pin and the lower right connecting steel plate. The binding hook and the binding hook control gear move downward along the right retractable guide groove, so that the binding hook extends into the cavity surrounded by the wire pushing groove. At the same time, the binding hook reset spring is compressed.

[0019] S4. Slide the binding hook into the cavity formed by the wire pushing groove. The binding hook hooks the folded end of the wire. At this time, move the adjustment handle upward. As the wire pushing block return spring and the binding hook return spring extend, the binding hook pulls the folded end of the wire back along the right telescopic guide groove to the bottom of the binding device main rod. At this time, the binding node is surrounded by the wire and the binding hook. The binding hook control gear contacts the lower tooth groove of the guide gear.

[0020] S5. Pull the adjustment handle upward. At this time, the adjustment handle is connected to the control rod, so that the spiral control end of the rod moves upward synchronously. As the spiral control end of the rod enters the guide gear hole, the guide gear rotates along the direction of the internal tooth groove, which drives the binding hook control gear and the binding hook to rotate coaxially. At this time, the binding hook, with the folded end and free end of the wire, rotates and wraps around the binding node, thereby binding the wire to the binding node.

[0021] S6. Release the adjustment handle. At this time, the guide gear return spring will extend and cause the web rod helical control end to leave the inside of the guide gear. Move the binding device towards the binding node so that the binding hook comes out from the folded end of the wire. Take back the rebar binding device and complete the binding operation of the binding node.

[0022] The present invention has the following advantages and beneficial effects:

[0023] This invention includes an upper main rod and a lower clamping end of a binding device. The upper main rod is equipped with an adjustment handle to control the main rod and a wire storage box. The lower clamping end includes left and right retractable guide grooves, a wire pushing block, and binding hooks. By moving the adjustment handle downwards, the wire pushing groove pushes the wire extending from the wire storage box downwards along the left retractable guide groove, while the binding hook on the right slides downwards along the right retractable guide groove. At their respective endpoints, the binding hooks extend into the wire pushing groove and hook the folded end of the wire. Then, the adjustment handle is released, and... The binding hook pulls the steel wire back to its initial position as the return spring rebounds. Then, the steel wire is pushed by the steel wire pusher block and hooked by the binding hook, returning to the initial position by winding around the right retractable guide groove. This completes the winding of the steel wire around the binding node position. This invention allows the winding of the steel wire around the binding node position to be completed by simply extending and adjusting the handle, without the need for hands or auxiliary tools. The operation is simple and quick, requires little space, and is convenient for entering narrow spaces, areas where it is difficult for hands to reach, and areas where the binding position is deep, thus improving the binding quality at these locations.

[0024] This invention includes a spiral control end for the web rod, a guide gear, a binding hook control gear, and a binding hook. After the steel wire is wrapped around the rebar binding position, pulling the handle upwards moves the spiral control end of the web rod below the control web rod upwards, causing the guide gear to rotate. This drives the binding hook control gear to rotate coaxially, thereby causing the binding hook to rotate synchronously with the steel wire, thus completing the binding of the rebar binding node. The operation is simple.

[0025] The present invention includes a main rod of a binding device and a fixed handle. After the binding point is completed, the binding hook can be separated from the steel wire simply by moving to the binding point position, thereby completing the binding work of a rebar binding node. Attached Figure Description

[0026] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0027] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0028] Figure 2 This is a top view of an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the handheld terminal according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the right side of the clamping end in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the left side of the clamping end in an embodiment of the present invention;

[0032] Figure 6 This is a positioning diagram before wire binding in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram showing the completion of rebar tying in an embodiment of the present invention;

[0034] Figure 8 This is an assembly diagram of the internal parts of an embodiment of the present invention.

[0035] The attached diagram shows the markings and corresponding component names:

[0036] 1-Fixed grip, 2-Adjustable grip, 3-Binding device main rod, 4-Control web rod, 5-Control web rod convex structure, 6-Left upper connecting steel plate, 7-Right upper connecting steel plate, 8-Left lower connecting steel plate, 9-Right lower connecting steel plate, 10-Left connecting steel plate limiting pin, 11-Right connecting steel plate limiting pin, 12-Wire pusher block convex structure, 13-Binding hook control convex structure, 14-Wire pusher groove, 15-Binding hook, 16-Left retractable guide groove, 17-Right retractable guide groove, 18-Wire pusher block return spring, 19-Binding hook return spring, 20-Binding hook control gear, 21-Web rod spiral control end, 22-Guide gear, 23-Guide gear return spring, 24-Wire storage box. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. Example

[0038] like Figures 1-8As shown, a rebar tying device includes: an upper main rod and a lower clamping end. The upper main rod includes a main rod housing, a fixed handle 1, an adjusting handle 2, a control rod 4, a control rod convex structure 5, a rod spiral control end 21, a guide gear 22, a guide gear return spring 23, and a wire storage box 24. The lower part of the main rod housing has an opening. The top fixed handle 1 is fixedly connected to the main rod housing. The adjusting handle 2 is placed in the plane of the main rod housing and the fixed handle 1 and connected to the upper end of the control rod 4. The lower end of the control rod 4 is connected to the rod spiral control end 21. The spiral control end 21 passes through the guide gear return spring 23 and the guide gear 22, respectively, and... The gear return spring 23 is fixed in the limiting groove, and the wire storage box 24 is placed on the left side of the lower end of the main shaft shell of the binding device. The lower clamping end of the binding device includes a left wire feeding mechanism and a right binding mechanism. The left wire feeding mechanism includes a left retractable guide groove 16, a wire push block return spring 18, a left upper connecting steel plate 6, a left lower connecting steel plate 8, a left connecting steel plate limiting nail 10, a wire push block convex structure 12 and a wire push groove 14. The right binding mechanism includes a right retractable guide groove 17, a binding hook return spring 19, a right upper connecting steel plate 7, a right lower connecting steel plate 9, a right connecting steel plate limiting nail 11, a binding hook 15, a binding hook control convex structure 13 and a binding hook control gear 20.

[0039] Among them, such as Figure 1 As shown, the fixed handle 1 is fixed to the outer shell of the main rod of the binding device, with space reserved in the middle for the adjustment handle 2 to move. A rectangular hole is opened along the length direction at the lower part of the outer shell of the main rod of the binding device. The length of the hole allows the adjustment handle 2 to be moved downward to push and retrieve the steel wire, and the adjustment handle 2 to be moved upward to complete the binding of the steel wire. The width of the hole can accommodate the convex structure 5 of the control web rod.

[0040] In the length direction of the main rod shell of the binding device, a center hole is opened above the limiting groove where the guide gear return spring 23 is fixed, and the diameter of the opening is 1.2 times the diameter of the control web rod 4. A groove is opened below the limiting groove to place the guide gear 22 and the guide gear return spring 23.

[0041] The guide gear 22 has a helical groove inside. The length of the helical groove is the same as the height of the guide gear 22, and the diameter of the helical groove is the same as the diameter of the spiral control end 21 of the web rod. The upper part of the guide gear 22 is a plane that connects with the guide gear return spring 23, and the lower part of the guide gear 22 is provided with a rotating gear.

[0042] The spiral control end 21 of the control rod is located at the lower part of the control rod 4. The spiral diameter is the same as the diameter of the groove inside the guide gear 22 and is 1.2 times the diameter of the control rod 4. The moving direction of the control rod 4 is the same as the length direction of the guide gear 22.

[0043] Among them, such as Figure 4 As shown, the left-side wire feeding mechanism includes a left-side retractable guide groove 16, a wire pusher block return spring 18, a left-side upper connecting steel plate 6, a left-side lower connecting steel plate 8, a left-side connecting steel plate limiting pin 10, a wire pusher block convex structure 12, and a wire pusher groove 14. The left-side retractable guide groove 16 is arc-shaped and has a guide groove inside. The wire pusher block convex structure 12 and the wire pusher block return spring 18 are placed in the groove. The wire pusher block return spring 18 is on the left side of the wire pusher block convex structure 12. The left-side retractable guide groove 16 has an opening in its left plane, the height of which is the height of the wire pusher groove 14. An opening is also made in its upper plane, the height of which is the diameter of the wire pusher block convex structure 12.

[0044] The convex structure 12 of the wire pusher block passes through the hole on the upper surface of the left retractable guide groove 16 and the lower round hole of the left lower connecting steel plate 8 and is fixed therethrough. The upper round hole of the left lower connecting steel plate 8 and the lower round hole of the left upper connecting steel plate 6 are connected and fixed by the left connecting steel plate limiting nail 10. The left connecting steel plate limiting nail 10 limits the maximum included angle between the left upper connecting steel plate 6 and the left lower connecting steel plate 8 to 135°. The upper round hole of the left upper connecting steel plate 6 is fitted onto the convex structure 5 of the control web rod for fixation.

[0045] The right-side binding mechanism includes a right-side retractable guide groove 17, a binding hook return spring 19, a right-side upper connecting steel plate 7, a right-side lower connecting steel plate 9, a right-side connecting steel plate limiting pin 11, a binding hook 15, a binding hook control convex structure 13, and a binding hook control gear 20. The right-side retractable guide groove 17 is arc-shaped and has a guide groove inside. The binding hook control gear 20, the binding hook control convex structure 13, the binding hook 15, and the binding hook return spring 19 are placed in the groove. The right retractable guide groove 17 has an opening in the left plane, the height of which is the maximum length of the tip of the binding hook 15 and the round rod. The upper plane has an opening, the height of which is the diameter of the binding hook control convex structure 13. The binding hook return spring 19 is located on the left side of the binding hook control convex structure 13 in the groove. The binding hook control convex structure 13 and the hollow cube with a round hole on the left and a square hole on the right at the bottom form a whole. Inside it is a binding hook control gear 20 so that the binding hook 15 passes through the round hole on the left.

[0046] The binding hook control convex structure 13 passes through the hole on the upper surface of the right telescopic guide groove 17 and the lower round hole of the right lower connecting steel plate 9 and is fixed therethrough. The upper round hole of the right lower connecting steel plate 9 and the lower round hole of the right upper connecting steel plate 7 are connected and fixed by the right connecting steel plate limiting nail 11. The right connecting steel plate limiting nail 11 limits the maximum included angle between the right upper connecting steel plate 7 and the right lower connecting steel plate 9 to 135°. The upper round hole of the right upper connecting steel plate 7 is fitted onto the control web convex structure 5 for fixation.

[0047] Among them, such as Figure 5 As shown, the wire storage box 24 is placed on the left side of the lower end of the main rod shell of the binding device. The wire is fed out from the bottom of the storage box 24, so that the bent section of the wire is in the wire pushing groove 14.

[0048] In summary, the steps for using this rebar tying tool include:

[0049] S1. Fold the steel wire in half, with one end of the steel wire being the folded end and the other end being the free end including the two wire ends. Place the folded steel wire into the steel wire storage box 24 and make one steel wire extend from the bottom opening of the steel wire storage box 24, with the extended part of the folded end of the steel wire reaching the steel wire pushing groove 14.

[0050] S2. Place four fingers into the groove of the adjustment handle 2, grasp the fixed handle 1 with your hand, and extend the lower clamping end of the strapping device toward the binding node. After extending into the binding node, move the adjustment handle 2 at the top of the strapping device downward, so that the control bar convex structure 5 moves downward by the same distance. Then, through the drive of the upper left connecting steel plate 6, the left connecting steel plate limiting nail 10 and the lower left connecting steel plate 8, the wire pushing block convex structure 12 and the wire pushing groove 14 move downward along the left retractable guide slide 16, so that the wire appears at the hooking position of the binding hook 15, and at the same time, the wire pushing block reset spring 18 is compressed.

[0051] S3. During the downward movement of the control bar convex structure 5, the binding hook control convex structure 13, binding hook 15 and binding hook control gear 20 are moved downward along the right retractable guide groove 17 by the driving action of the upper right connecting steel plate 7, the right connecting steel plate limiting nail 11 and the lower right connecting steel plate 9, so that the binding hook 15 extends into the cavity surrounded by the wire pushing groove 14, and the binding hook return spring 19 is compressed at the same time.

[0052] S4. Slide the binding hook 15 into the cavity formed by the wire pushing groove 14. The binding hook 15 hooks the folded end of the wire. At this time, move the adjustment handle 2 upward. As the wire pushing block return spring 18 and the binding hook return spring 19 extend, the binding hook 15 pulls the folded end of the wire back along the right telescopic guide groove 17 to the bottom of the binding device main rod 3. At this time, the binding node is surrounded by the wire and the binding hook 15. The binding hook control gear 20 contacts the lower tooth groove of the guide gear 22.

[0053] S5. Pull the adjustment handle 2 upward. At this time, the adjustment handle 2 is connected to the control rod 4 so that the spiral control end 21 of the rod moves upward synchronously. As the spiral control end 21 of the rod enters the hole of the guide gear 22, the guide gear 22 rotates along the direction of the internal tooth groove, which drives the binding hook control gear 20 and the binding hook 15 to rotate coaxially. At this time, the binding hook 15, with the folded end and free end of the steel wire, rotates and wraps around the binding node, thereby binding the steel wire to the binding node.

[0054] S6. Release the adjustment handle 2. At this time, the guide gear return spring 23 rebounds and extends, causing the web rod spiral control end 21 to leave the inside of the guide gear 22. Move the binding device towards the binding node so that the binding hook 15 comes out from the folded end of the steel wire. Take back the rebar binding device and complete the binding operation of the binding node.

[0055] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A rebar tying device, comprising an upper main rod and a lower clamping end, characterized in that: The upper main rod of the binding device includes a main rod shell, a fixed handle (1), an adjusting handle (2), a control rod (4), a convex structure of the control rod (5), a spiral control end (21) of the rod, a guide gear (22), a guide gear return spring (23), and a wire storage box (24). The lower part of the main rod shell of the binding device has a hole, and the top fixed handle (1) is fixedly connected to the main rod shell of the binding device. The adjusting handle (2) is set in the plane where the main rod shell of the binding device and the fixed handle (1) are located and is connected to the upper end of the control rod (4). The lower end of the control rod (4) is connected to the spiral control end (21) of the rod. The spiral control end (21) of the rod passes through the guide gear return spring (23) and the guide gear (22) respectively, and the guide gear return spring (23) is fixed in the limiting groove. The wire storage box (24) is set on the left side of the lower end of the main rod shell of the binding device. The lower clamping end of the binding device includes a left wire feeding mechanism and a right binding mechanism. The left wire feeding mechanism includes a left retractable guide groove (16), a wire pusher block return spring (18), a left upper connecting steel plate (6), a left lower connecting steel plate (8), a left connecting steel plate limiting pin (10), a wire pusher block convex structure (12), and a wire pusher groove (14). The right binding mechanism includes a right retractable guide groove (17), a binding hook return spring (19), a right upper connecting steel plate (7), a right lower connecting steel plate (9), a right connecting steel plate limiting pin (11), a binding hook (15), a binding hook control convex structure (13), and a binding hook control gear (20). The left retractable guide groove (16) and the right retractable guide groove (17) are respectively disposed on the left and right sides of the lower clamping end of the binding device and are disposed opposite to each other; the wire pushing groove (14) is used to form a cavity opening towards the right retractable guide groove (17) to accommodate the bent / folded end of the wire sent from the bottom end of the wire storage box (24); the binding hook (15) is disposed in the right retractable guide groove (17) and can extend into the cavity to hook the bent / folded end of the wire; the convex structure (12) of the wire pushing block is in the wire pushing block reset spring Under the action of the spring (18), the wire push groove (14) slides along the left retractable guide groove (16), thereby driving the wire push groove (14) to push the wire to the hooking position of the binding hook (15); the binding hook control convex structure (13) slides along the right retractable guide groove (17) under the action of the binding hook reset spring (19), thereby driving the binding hook (15) to extend into or exit the cavity; the binding hook control gear (20) can mesh with the lower tooth groove of the guide gear (22) to drive the binding hook (15) to rotate, thereby realizing the winding and binding of the wire at the binding node.

2. The rebar tying device according to claim 1, characterized in that: The fixed handle (1) is fixedly connected to the outer shell of the main rod of the binding device. A space is reserved between the fixed handle (1) and the adjusting handle (2) for the adjusting handle (2) to move. A hole is opened at the lower part of the outer shell of the main rod of the binding device along the length direction. The length of the hole allows the adjusting handle (2) to push and retrieve the steel wire when it moves downward, and to complete the steel wire binding when it moves upward. The width of the hole can accommodate the convex structure (5) of the control web rod.

3. The rebar tying device according to claim 1, characterized in that: The main rod housing of the binding device has a central hole above the limiting groove where the guide gear return spring (23) is fixed along its length, and the diameter of the hole is larger than the diameter of the control rod (4); a groove is formed in the part below the limiting groove to accommodate the guide gear (22) and the guide gear return spring (23).

4. The rebar tying device according to claim 1, characterized in that: The guide gear (22) has a spiral tooth groove inside. The length of the spiral tooth groove is the same as the height of the guide gear (22), and the diameter of the spiral tooth groove is the same as the diameter of the spiral control end (21) of the web rod. The upper part of the guide gear (22) is a plane and is connected to the guide gear return spring (23). The lower part of the guide gear (22) has a tooth groove for meshing with the binding hook control gear (20).

5. A rebar tying device according to claim 1, characterized in that: The spiral control end (21) of the control rod is located at the lower part of the control rod (4). Its spiral diameter is the same as the diameter of the groove inside the guide gear (22) and is larger than the diameter of the control rod (4). The moving direction of the control rod (4) is the same as the length direction of the guide gear (22).

6. A rebar tying device according to claim 1, characterized in that: The left retractable guide chute (16) is arc-shaped and has a guide groove inside. A wire push block convex structure (12) and a wire push block reset spring (18) are provided in the guide groove, and the wire push block reset spring (18) is located on the left side of the wire push block convex structure (12). A hole is opened in the left plane of the left retractable guide chute (16), and the height of the hole is the height of the wire push groove (14). A hole is opened in the upper plane of the left retractable guide chute (16), and the height of the hole is the diameter of the wire push block convex structure (12).

7. A rebar tying device according to claim 6, characterized in that: The convex structure (12) of the wire pusher block passes through the hole on the upper plane of the left retractable guide groove (16) and the lower round hole of the left lower connecting steel plate (8) and is fixed thereto; the upper round hole of the left lower connecting steel plate (8) is connected to the lower round hole of the left upper connecting steel plate (6), and the two are connected and fixed by the left connecting steel plate limiting nail (10), the left connecting steel plate limiting nail (10) limits the maximum included angle between the left upper connecting steel plate (6) and the left lower connecting steel plate (8); the upper round hole of the left upper connecting steel plate (6) is sleeved on the convex structure (5) of the control web rod and fixed thereto.

8. A rebar tying device according to claim 1, characterized in that: The right-side retractable guide groove (17) is arc-shaped and has a guide groove inside. The guide groove is provided with a binding hook control gear (20), a binding hook control convex structure (13), a binding hook (15), and a binding hook return spring (19). A hole is opened in the left plane of the right-side retractable guide groove (17), and the height of the hole is the maximum length of the tip of the binding hook (15) and the round rod. A hole is opened in the upper plane of the right-side retractable guide groove (17), and the height of the hole is the diameter of the binding hook control convex structure (13). The binding hook return spring (19) in the guide groove is located on the left side of the binding hook control convex structure (13). The binding hook control convex structure (13) and the hollow cube with a round hole on the lower left and a square hole on the right form an integral whole. The binding hook control gear (20) is provided inside it so that the binding hook (15) can pass through the round hole on the left.

9. A rebar tying device according to claim 8, characterized in that: The binding hook control convex structure (13) passes through the hole opened on the upper plane of the right telescopic guide groove (17) and the lower round hole of the right lower connecting steel plate (9) and is fixed; the upper round hole of the right lower connecting steel plate (9) is connected to the lower round hole of the right upper connecting steel plate (7), and the two are connected and fixed by the right connecting steel plate limiting nail (11). The right connecting steel plate limiting nail (11) limits the maximum included angle between the right upper connecting steel plate (7) and the right lower connecting steel plate (9); the upper round hole of the right upper connecting steel plate (7) is sleeved on the control web convex structure (5) and fixed.

10. A rebar tying device according to claim 1, characterized in that: The wire storage box (24) is located on the left side of the lower end of the main rod shell of the binding device. The wire is fed out from the bottom of the wire storage box (24) so ​​that the bent section of the wire is in the wire pushing groove (14).

11. A method of using a rebar tying tool, characterized in that, The method of using a rebar tying device according to any one of claims 1-10 includes the following steps: S1. Fold the wire in half, with one end of the wire being the folded end and the other end being the free end including the two ends of the wire; put the folded wire into the wire storage box (24) and let one wire extend from the bottom opening of the wire storage box (24) so ​​that the folded end of the wire extends into the wire pushing groove (14); S2. Place four fingers into the groove of the adjusting handle (2), hold the fixed handle (1) with your hand, and extend the lower clamping end of the binding device toward the binding node. After extending into the binding node, move the adjusting handle (2) downward so that the control bar convex structure (5) moves downward by the same distance. Driven by the upper left connecting steel plate (6), the left connecting steel plate limiting pin (10), and the lower left connecting steel plate (8), the wire push block convex structure (12) and the wire push groove (14) move downward along the left retractable guide slide (16) so that the wire appears in the hooking position of the binding hook (15) and the wire push block reset spring (18) is compressed. S3. During the downward movement of the control web convex structure (5), the binding hook control convex structure (13), binding hook (15) and binding hook control gear (20) are driven by the upper right connecting steel plate (7), the right connecting steel plate limiting nail (11) and the lower right connecting steel plate (9), so that the binding hook control convex structure (13), binding hook (15) and binding hook control gear (20) move downward along the right telescopic guide slide (17), so that the binding hook (15) extends into the cavity surrounded by the wire pushing groove (14), and at the same time the binding hook return spring (19) is compressed. S4. After the binding hook (15) hooks the folded end of the wire in the cavity, move the adjusting handle (2) upward. As the wire push block return spring (18) and binding hook return spring (19) extend, the binding hook (15) pulls the folded end of the wire back to the bottom of the binding device main rod along the right telescopic guide groove (17), so that the binding node is surrounded by the wire and the binding hook (15). At the same time, the binding hook control gear (20) contacts the lower tooth groove of the guide gear (22). S5. Continue to pull the adjustment handle (2) upwards. The adjustment handle (2) drives the control rod (4) to move the spiral control end (21) of the rod upwards synchronously. As the spiral control end (21) of the rod enters the hole of the guide gear (22), the guide gear (22) rotates along the direction of the internal spiral tooth groove, driving the binding hook control gear (20) and the binding hook (15) to rotate coaxially, so that the binding hook (15) drives the folded end and free end of the steel wire to rotate and wrap at the binding node, thereby completing the steel wire binding. S6. Loosen the adjustment handle (2), and the guide gear return spring (23) rebounds to make the web rod spiral control end (21) leave the inside of the guide gear (22); move the binding device to the binding node, so that the binding hook (15) comes out from the folded end of the wire, take back the rebar binding device, and complete the binding operation of the binding node.

Images