A rebar tying device for municipal bridges and its application method

Abstract

This invention relates to the field of road and bridge technology, and discloses a rebar tying device for municipal bridges and its usage method. The device includes a sleeve body, with a driver installed on one side inside the sleeve body, and a connecting block fixedly connected to the other side inside the sleeve body. A bearing is fixedly connected to one side of the connecting block, and a rotating shaft is fixedly connected inside the bearing. A first gear is fixedly connected to one end of the rotating shaft, a disc is fixedly connected to one side of the first gear, and a fixing strip is fixedly connected to one side of the disc. This invention has the following advantages and effects: It ties the rebar by using a hook and starting a second motor to rotate the first and second gears, making it convenient and quick for workers to use. After tying the rebar, the worker activates an electric telescopic rod to move the blade towards the pressure block, thereby cutting the thin wire and facilitating further work, thus improving work efficiency.

Description

Technical Field

[0001] This invention relates to a rebar tying device, and more particularly to a rebar tying device for municipal road and bridge engineering and its method of use. Background Technology

[0002] Roads and bridges generally consist of several major parts, including roadbed, pavement, bridge, tunnel engineering, and traffic engineering facilities. In the construction process of concrete structures for roads and bridges, steel reinforcement engineering is one of the most labor-intensive projects, and steel reinforcement binding is one of the most time-consuming and labor-intensive procedures in steel reinforcement engineering. Therefore, there is an urgent need for a steel reinforcement binding device and its usage method for municipal road and bridge engineering.

[0003] Currently, rebar tying construction still mostly uses rebar tying hooks, which are manually tied. The biggest drawback is the slow construction speed, which brings great cost and time pressure to construction companies. In addition, the steel wire needs to be cut manually during the process. Summary of the Invention

[0004] The purpose of this invention is to provide a rebar tying device for municipal bridges and its usage method, which can solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0006] A rebar tying device for municipal bridges includes a sleeve body.

[0007] An actuator is provided on one side inside the sleeve body;

[0008] A connecting block is fixedly connected to the other side of the casing body. A bearing is fixedly connected to one side of the connecting block. A rotating shaft is fixedly connected inside the bearing. A first gear is fixedly connected to one end of the rotating shaft. A disc is fixedly connected to one side of the first gear. A fixing strip is fixedly connected to one side of the disc. An electric telescopic rod is fixedly connected to one side of the fixing strip. A blade is fixedly connected to one end of the electric telescopic rod. A fixing block is fixedly connected to one side of the disc. A pressure block is fixedly connected to one side of the fixing block.

[0009] A hook is provided on one side of the sleeve body;

[0010] A motor is fixedly connected to the lower part of the other side of the connecting block, and a second gear is fixedly connected to one end of the motor. The second gear meshes with the first gear.

[0011] A first grip and a second grip are fixedly connected to both sides of the lower surface of the sleeve body, and a button is provided on one side of the first grip.

[0012] In a preferred embodiment, the hook is provided with a rotating arc segment, which is rotatably mounted on the inner side of the hook. The outer wall of the rotating arc segment is provided with an external toothed part. A stepper motor is mounted on the hook, and the output end of the stepper motor drives the external toothed part to rotate via a gear.

[0013] A limiting groove is provided on the inner wall of the rotating arc segment;

[0014] Two guide posts are symmetrically distributed on the disc, and clamping frames are slidably fitted on the two guide posts. A connecting spring is provided between the clamping frames and the disc. The clamping frames are used to clamp the thin iron wire.

[0015] In a preferred embodiment, the clamping frame has two symmetrically distributed clamping plates that slide together internally. One clamping plate is equipped with a separator to separate the two ends of the thin iron wire, and the other clamping plate is provided with an insertion hole that is compatible with the separator.

[0016] A second stepper motor is mounted on the top of the clamping frame, and a rack plate is mounted on the top of the two clamping plates. The output end of the second stepper motor meshes with the two rack plates through gears.

[0017] In a preferred embodiment, a hinge is fixedly connected to the front of the second handle, and a movable door is fixedly connected to one side of the hinge;

[0018] The second grip has an internal I-beam wheel, which is made of plastic.

[0019] A hinge is fixedly connected to the lower surface of the second grip, and a first stop and a second stop are rotatably connected inside the hinge;

[0020] The second grip has a wire feeding mechanism installed inside.

[0021] In a preferred embodiment, the wire feeding mechanism includes a second motor, which is fixedly connected inside the second handle;

[0022] The output end of the second motor is fixedly connected to a third gear;

[0023] The third gear meshes with the fourth gear;

[0024] Both sides of the fourth gear are rotatably connected to the inner wall of the second grip.

[0025] Both the third and fourth gears have limiting grooves on their exteriors, which allow thin iron wires to pass through.

[0026] In a preferred embodiment, both the surface of the first grip and the second grip are fixedly connected with anti-slip protrusions, and the anti-slip protrusions are circular in shape.

[0027] In a preferred embodiment, the number of anti-slip protrusions is several, and the several anti-slip protrusions are fixedly connected to the surfaces of the first grip and the second grip in a ring array.

[0028] A method for using a rebar tying device for municipal bridges includes:

[0029] Step 1, Install the I-beam wheels

[0030] Rotate the hinges, and the first and second blocks will open the bottom of the movable door. Open the upward movable door via the hinges, and insert the I-beam wheel with the thin iron wire wrapped around it, ensuring that the thin iron wire is in the limit groove.

[0031] Step 2, feeding wire

[0032] The second motor rotates, driving the third and fourth gears to rotate synchronously and conveying the thin iron wire in the limiting groove into the hook until it is in the limiting groove.

[0033] Step 3, tying the reinforcing bars

[0034] 31) Place the hook on one side of the rebar node, and position the hook in the middle between the transverse and longitudinal rebars at the node. Move the hook close to the node position. The stepper motor drives the rotating arc segment to rotate a certain angle through the gear. At the same time as the stepper motor rotates, the second motor is turned on, and the wire feeding speed is less than the rotation speed of the rotating arc segment. It is necessary to ensure that the thin iron wire does not come out of the limiting groove.

[0035] 32) The second motor rotates, driving the third and fourth gears to rotate synchronously and conveying the thin iron wire in the limiting groove into the hook until the free end of the thin iron wire passes out of the clamping frame;

[0036] 33) The stepper motor drives two clamping plates to approach each other via gears and clamp the two ends of the thin iron wire. After clamping, the push head pushes the wire so that the intersection of the thin iron wire is closest to the rebar node.

[0037] 34) The electric telescopic rod drives the blade to cut the thin iron wire. After cutting, the motor starts and drives the second gear and the first gear. The clamping frame rotates and binds the thin iron wire to the node of the horizontal and vertical steel bars. The twisting point of the thin iron wire gradually moves away from the node of the steel bar.

[0038] The beneficial effects of this invention are:

[0039] 1. This invention, by setting up a hook, motor, second gear, first handle, second handle, button, second motor, third gear, fourth gear, and limiting groove, allows the worker to grip the first and second handles tightly when binding rebar. Then, the second motor is started, and the output end of the second motor drives the third and fourth gears to rotate. The thin iron wire on the I-beam is wound around the limiting groove on the first and second handles. The rotation of the third and fourth gears drives the thin iron wire upward, and the thin iron wire is then used to bind the rebar by passing through the hook and the first and second gears driven by the second motor. This is convenient, quick, and easy for workers to use.

[0040] 2. This invention, by setting up a bearing, a rotating shaft, a first gear, a disc, a fixing bar, an electric telescopic rod, a blade, a fixing block, a pressure block, a hook, a motor, and a second gear, allows workers to cut thin iron wires after the reinforcing bars are tied up by activating the electric telescopic rod to move the blades toward the pressure block. This facilitates the next step of the work and improves work efficiency.

[0041] 3. This invention, by setting a clamping plate and a rotating arc segment, clamps and directionally conveys the thin iron wire around the rebar node. After clamping, an α-shaped structure is formed before cutting, preventing the thin iron wire from twisting between the limiting groove and the clamping plate, which could easily lead to over-twisting and breakage during subsequent twisting. If the wire is cut first and then clamped, it may not be able to effectively twist the thin iron wire, resulting in a loose twist.

[0042] 4. This invention, by setting the clamping plate as an axially flexible feeding structure and using a pushing method at the rebar node before twisting, enables automatic feeding towards the rebar node during twisting through the flexible feeding method of the clamping frame. At the same time, because the pushing operation is performed at the rebar node before twisting, it ensures that the twisting point is closer to the rebar node, thus making the twisting direction away from the rebar node. Compared with the previous twisting point which was away from the rebar node and towards the rebar node, this twisting method requires gradually overcoming the resistance in the twisting direction near the rebar node to gradually approach the rebar node, which is more likely to cause the thin iron wire to break due to excessive twisting. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the structure of the present invention;

[0045] Figure 2 This is a front view structural diagram of the present invention;

[0046] Figure 3 This is a schematic diagram of the structure of the motor of the present invention;

[0047] Figure 4 This is a schematic diagram of the structure of the second grip of the present invention;

[0048] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0049] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B;

[0050] Figure 7 For the present invention Figure 5 Front view of the clamping frame;

[0051] Figure 8 for Figure 7 Top view of the middle jacking component;

[0052] Figure 9 for Figure 7 Top view of the gear meshing between the rack plate and the gear;

[0053] Figure 10 This is a structural diagram of the internal structure of the hook in this invention.

[0054] In the picture:

[0055] 1. Sleeve body; 2. Driver; 3. Connecting block; 4. Bearing; 5. Rotating shaft; 6. First gear; 7. Disc; 71. Guide post; 72. Clamping frame; 721. Clamping plate; 722. Clamping block; 723. Pushing component; 724. Stepper motor II; 725. Rack plate; 726. Pushing head; 727. Pushing telescopic rod I; 728. Pushing telescopic rod II; 73. Connecting spring; 8. Fixing strip; 9. Electric telescopic rod; 10. Blade; 11. Fixing block; 12. Pressing block; 13. Hook; 131. Rotating arc segment; 132. Stepper motor one; 133. External gear; 14. Motor; 15. Second gear; 16. First grip; 17. Second grip; 18. Button; 19. Second motor; 20. Third gear; 21. Fourth gear; 22. Limiting groove; 23. Hinge; 24. Sliding door; 25. I-beam wheel; 26. Hinge; 27. First stop block; 28. Second stop block. Detailed Implementation

[0056] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0057] Reference Figure 1-6 A steel bar tying device for municipal bridges includes a sleeve body 1, and a driver 2 (drive control module) is provided on one side inside the sleeve body 1.

[0058] A connecting block 3 is fixedly connected to the other side of the sleeve body 1. A bearing 4 is fixedly connected to one side of the connecting block 3. A rotating shaft 5 is fixedly connected inside the bearing 4. A first gear 6 is fixedly connected to one end of the rotating shaft 5. A disc 7 is fixedly connected to one side of the first gear 6. A fixing strip 8 is fixedly connected to one side of the disc 7. An electric telescopic rod 9 is fixedly connected to one side of the fixing strip 8. A blade 10 is fixedly connected to one end of the electric telescopic rod 9. A fixing block 11 is fixedly connected to one side of the disc 7. A pressure block 12 is fixedly connected to one side of the fixing block 11.

[0059] A hook 13 is provided on one side of the sleeve body 1.

[0060] A motor is fixedly connected to the lower part of the other side of the connecting block 3, and a second gear 15 is fixedly connected to one end of the motor. The second gear 15 meshes with the first gear 6.

[0061] A first grip 16 and a second grip 17 are fixedly connected to both sides of the lower surface of the sleeve body 1, and a button 18 is provided on one side of the first grip 16.

[0062] like Figure 10 As shown, the hook 13 is provided with a rotating arc segment 131, which is rotatably installed on the inner side of the hook 13. The outer wall of the rotating arc segment 131 is provided with an external tooth 133. A stepper motor 132 is installed on the hook 13. The output end of the stepper motor 132 drives the external tooth 133 to rotate via a gear.

[0063] A limiting groove is provided on the inner wall of the rotating arc segment 131;

[0064] like Figure 7 value Figure 10 As shown, two guide posts 71 are symmetrically distributed on the disk 7. Clamping frames 72 are slidably fitted on the two guide posts 71. A connecting spring 73 is provided between the clamping frame 72 and the disk 7. The clamping frame 72 is used to clamp the thin iron wire.

[0065] The clamping frame 72 has two symmetrically distributed clamping plates 721 that slide together internally;

[0066] A second stepper motor 724 is mounted on the top of the clamping frame 72, and a rack plate 725 is mounted on the top of the two clamping plates 721. The output end of the second stepper motor 724 meshes with the two rack plates 725 through gears.

[0067] Two clamping blocks 722 are installed on the opposite side of the clamping plate 721, and both clamping blocks 722 are connected to the clamping plate 721 via elastic columns.

[0068] A pusher 723 is provided in the middle of one side of the two clamping plates 721 facing each other.

[0069] The pusher 723 includes a pusher telescopic rod 727 rotatably mounted in the middle of one of the clamping plates 721 and a pusher telescopic rod 728 rotatably mounted in the middle of the other clamping plate 721. A pusher head 726 is provided on the side of the pusher telescopic rod 727 and the pusher telescopic rod 728 away from the clamping plate 721.

[0070] The stepper motor 724 drives the gear and rack plate 725 to clamp the two clamping plates 721 and the clamping block 722. The push head 726, under the joint action of the push telescopic rod 728 and the push telescopic rod 727 (both of which are elastic telescopic structures), pushes the thin iron wire towards the rebar node. The turning point starts from the position closest to the rebar and gradually turns outward. However, the turning direction of the existing technology is from the outside to the inside, which makes the final turning tightness not meet the requirements and is more likely to cause the thin iron wire to break due to over-turning.

[0071] A hinge 23 is fixedly connected to the front of the second handle 17, and a movable door 24 is fixedly connected to one side of the hinge 23;

[0072] The second grip 17 has an internal I-beam wheel 25 made of plastic; the I-beam wheel 25 is used to hold the wound thin iron wire.

[0073] A hinge 26 is fixedly connected to the lower surface of the second grip 17. The hinge 26 is rotatably connected to a first stop 27 and a second stop 28. By rotating the hinge 26 90° in the opposite direction, the bottom of the movable door 24 can be locked or opened.

[0074] The second grip 17 has a wire feeding mechanism installed inside.

[0075] The wire feeding mechanism includes a second motor 19, which is fixedly connected inside the second handle 17.

[0076] The output end of the second motor 19 is fixedly connected to the third gear 20;

[0077] The third gear 20 meshes with the fourth gear 21;

[0078] Both sides of the fourth gear 21 are rotatably connected to the inner wall of the second grip 17.

[0079] Both the third gear 20 and the fourth gear 21 have limiting grooves 22 on their exteriors, which allow thin iron wires to pass through.

[0080] The surfaces of the first grip 16 and the second grip 17 are both fixedly connected with anti-slip protrusions, and the anti-slip protrusions are circular in shape.

[0081] The number of anti-slip protrusions is several, and the several anti-slip protrusions are fixedly connected to the surfaces of the first grip 16 and the second grip 17 in a ring array.

[0082] The second motor 19 drives the third gear 20 and the fourth gear 21 to rotate, thereby driving the thin iron wire to be conveyed until it enters the inner area of ​​the hook 13, so as to realize the insertion and retraction of the thin iron wire.

[0083] Instructions for use include:

[0084] Step 1, Install the H-beam 25

[0085] Rotate hinge 26, first stop 27 and second stop 28 open the bottom of movable door 24, open the upward movable door 24 via hinge 23, insert the I-beam wheel 25 with thin iron wire wrapped around it, and ensure that the thin iron wire is in the limiting groove 22.

[0086] Step 2, feeding wire

[0087] The second motor 19 rotates, driving the third gear 20 and the fourth gear 21 to rotate synchronously and conveying the thin iron wire in the limiting groove 22 into the hook 13 until it is in the limiting groove.

[0088] Step 3, tying the reinforcing bars

[0089] 35) Place the hook 13 on one side of the rebar node, and position the hook 13 in the middle between the transverse and longitudinal rebars at the node. Move the hook 13 close to the node position. The stepper motor 132 drives the rotating arc segment 131 to rotate a certain angle via the gear. At the same time as the stepper motor 132 rotates, the second motor 19 is turned on, and the wire feeding speed is less than the rotation speed of the rotating arc segment 131. It is necessary to ensure that the thin iron wire does not come out of the limiting groove.

[0090] 36) The second motor 19 rotates, driving the third gear 20 and the fourth gear 21 to rotate synchronously and conveying the thin iron wire in the limiting groove 22 into the hook 13 until the free end of the thin iron wire passes out from the clamping frame 72;

[0091] 37) Stepper motor 724 drives two clamping plates 721 to approach each other via gears and clamp the two ends of the thin iron wire. After clamping, the push head 726 pushes the wire so that the intersection point of the thin iron wire is closest to the rebar node.

[0092] 38) The electric telescopic rod 9 drives the blade 10 to cut the thin iron wire. After cutting, the motor starts and drives the second gear 15 and the first gear 6. The clamping frame 72 rotates and binds the thin iron wire to the node of the horizontal and vertical steel bars. The twisting point of the thin iron wire gradually moves away from the position close to the steel bar node.

Claims

1. A rebar tying device for municipal bridges, comprising a sleeve body (1), characterized in that: A driver (2) is provided on one side inside the sleeve body (1). A connecting block (3) is fixedly connected to the other side of the sleeve body (1). A bearing (4) is fixedly connected to one side of the connecting block (3). A rotating shaft (5) is fixedly connected inside the bearing (4). A first gear (6) is fixedly connected to one end of the rotating shaft (5). A disc (7) is fixedly connected to one side of the first gear (6). A fixing strip (8) is fixedly connected to one side of the disc (7). An electric telescopic rod (9) is fixedly connected to one side of the fixing strip (8). A blade (10) is fixedly connected to one end of the electric telescopic rod (9). A fixing block (11) is fixedly connected to one side of the disc (7). A pressure block (12) is fixedly connected to one side of the fixing block (11). A hook (13) is provided on one side of the sleeve body (1). A motor is fixedly connected to the lower part of the other side of the connecting block (3), and a second gear (15) is fixedly connected to one end of the motor. The second gear (15) meshes with the first gear (6). The lower surface of the sleeve body (1) is fixedly connected to the two sides of the first handle (16) and the second handle (17), respectively. A button (18) is provided on one side of the first handle (16). The hook (13) is provided with a rotating arc segment (131), which is rotatably installed on the inner side of the hook (13). An external toothed part (133) is provided on the outer wall of the rotating arc segment (131). A stepper motor (132) is installed on the hook (13). The output end of the stepper motor (132) drives the external toothed part (133) to rotate via a gear. A limiting groove is provided on the inner wall of the rotating arc segment (131); Two guide posts (71) are symmetrically distributed on the disc (7). A clamping frame (72) is slidably fitted on the two guide posts (71). A connecting spring (73) is provided between the clamping frame (72) and the disc (7). The clamping frame (72) is used to clamp the thin iron wire. The clamping frame (72) has two symmetrically distributed clamping plates (721) that slide inside. A second stepper motor (724) is mounted on the top of the clamping frame (72), and a rack plate (725) is mounted on the top of the two clamping plates (721). The output end of the second stepper motor (724) meshes with the two rack plates (725) through gears. Two clamping blocks (722) are installed on the opposite side of the clamping plate (721), and both clamping blocks (722) are connected to the clamping plate (721) via elastic columns. A pusher (723) is provided in the middle of one side of the two clamping plates (721); The pusher (723) includes a pusher telescopic rod one (727) rotatably mounted in the middle of one of the clamping plates (721) and a pusher telescopic rod two (728) rotatably mounted in the middle of the other clamping plate (721). A pusher head (726) is provided on the side of the pusher telescopic rod one (727) and the pusher telescopic rod two (728) away from the clamping plate (721).

2. The rebar tying device for municipal bridges according to claim 1, characterized in that: A hinge (23) is fixedly connected to the front of the second handle (17), and a movable door (24) is fixedly connected to one side of the hinge (23). The second grip (17) is provided with an I-beam wheel (25) inside, and the I-beam wheel (25) is made of plastic; A hinge (26) is fixedly connected to the lower surface of the second grip (17), and a first stop (27) and a second stop (28) are rotatably connected inside the hinge (26). The second grip (17) has a wire feeding mechanism installed inside.

3. A rebar tying device for municipal bridges according to claim 2, characterized in that: The wire feeding mechanism includes a second motor (19), which is fixedly connected inside the second handle (17); The output end of the second motor (19) is fixedly connected to the third gear (20); The third gear (20) meshes with the fourth gear (21). Both sides of the fourth gear (21) are rotatably connected to the inner wall of the second grip (17); Both the third gear (20) and the fourth gear (21) have a limiting groove (22) on their exterior, which allows the thin iron wire to pass through.

4. A rebar tying device for municipal bridges according to claim 3, characterized in that: The surfaces of the first grip (16) and the second grip (17) are both fixedly connected with anti-slip protrusions, and the anti-slip protrusions are circular in shape.

5. A rebar tying device for municipal bridges according to claim 4, characterized in that: The number of anti-slip protrusions is several, and the several anti-slip protrusions are fixedly connected to the surfaces of the first grip (16) and the second grip (17) in a ring array.

6. The method of using the rebar tying device for municipal bridges according to claim 5, characterized in that, include: Step 1, Install the I-beam wheel (25) Rotate the hinge (26), the first stop (27) and the second stop (28) open the bottom of the movable door (24), open the upturned movable door (24) through the hinge (23), insert the I-beam wheel (25) with the thin iron wire wrapped around it, and ensure that the thin iron wire is in the limiting groove (22); Step 2, feeding wire The second motor (19) rotates, driving the third gear (20) and the fourth gear (21) to rotate synchronously and conveying the thin iron wire in the limiting groove (22) into the hook (13) until it is in the limiting groove; Step 3, tying the reinforcing bars 31) Place the hook (13) on one side of the rebar node, and the hook (13) is located in the middle between the transverse and longitudinal rebars at the node. Place the hook (13) close to the node. The stepper motor (132) drives the rotating arc segment (131) to rotate a certain angle through the gear. At the same time as the stepper motor (132) rotates, the second motor (19) is turned on, and the wire feeding speed is less than the rotation speed of the rotating arc segment (131). It is necessary to ensure that the thin iron wire does not come out of the limiting groove. 32) The second motor (19) rotates, driving the third gear (20) and the fourth gear (21) to rotate synchronously and convey the thin iron wire in the limiting groove (22) into the hook (13) until the free end of the thin iron wire passes out from the clamping frame (72); 33) Stepper motor 2 (724) drives two clamping plates (721) to approach each other via gears and clamp the two ends of the thin wire. After clamping, the push head (726) pushes the wire so that the intersection of the thin wire is closest to the rebar node. The electric telescopic rod (9) drives the blade (10) to cut the thin iron wire. After cutting, the motor starts and drives the second gear (15) and the first gear (6). The clamping frame (72) rotates and binds the thin iron wire to the node of the horizontal and vertical steel bars. The twisting point of the thin iron wire gradually moves away from the position close to the node of the steel bar.

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