A steel bar tying device

Abstract

The present invention belongs to the technical field of steel bar binding, and specifically discloses a steel bar binding device, including a horizontal rod, a hollow column is vertically fixed on the lower side of the middle of the horizontal rod, sliding columns are vertically and symmetrically fixed on both sides of the hollow column on the lower side of the horizontal rod, and a lifting rod is vertically slidably provided at the lower position of the hollow column and the sliding column on each horizontal rod, a tension spring is sleeved on the outer side of the sliding column, a twisting shaft is coaxially engaged and rotated in the hollow column, a releasable twisting mechanism is provided after the lower end of the twisting shaft extends out of the hollow column, a walking twisting drive mechanism is provided between the edges of the two horizontal rods, a foot-operated one-way wire feeding mechanism is provided on the sliding column on each horizontal rod away from the walking twisting drive mechanism, and a linkage wire cutting mechanism is provided on the lower side of the lifting rod. The present invention realizes steel wire winding by providing power through pedals, and automatically completes steel wire twisting by providing power through walking structures, effectively improving binding efficiency, reducing labor intensity, and ensuring binding quality through standardized operations.

Description

Technical Field

[0001] The invention belongs to the technical field of steel bar binding, and in particular relates to a steel bar binding device. Background Art

[0002] Rebar tying is an important process in the construction of reinforced concrete structures. Its purpose is to connect the steel bars together before pouring concrete to form an integrated steel skeleton to ensure the strength, rigidity and stability of the concrete structure. Rebar tying generally includes manual tying, that is, manually passing the steel wire through the intersection of the steel bars, and then twisting the wire with a wire hook to form a tying knot; it also includes tying with an electric tying machine, which is a highly automated steel tying equipment that automatically passes the wire through the intersection of the steel bars and uses an electric motor to twist the wire. The existing steel tying technology has the following defects.

[0003] When tying steel bars on a horizontal surface, manual tying requires workers to bend over and lower their heads for a long time, which can easily cause back pain and even occupational diseases such as cervical spondylosis and lumbar disc herniation. At the same time, manual tying is inefficient, especially in dense steel grids, where workers need to hold the steel wires by hand and repeatedly insert the steel wires. The operation is cumbersome and time-consuming, and it is difficult to meet the high efficiency requirements of modern engineering construction. The quality of manual tying depends largely on the workers' operating level and experience, and it is easy to have problems such as loose tying and uneven tying quality.

[0004] Electric strapping machines are driven by electric motors to automatically wrap steel wire around the intersection of steel bars and tighten them with electric tools, which can effectively improve the efficiency of tying and reduce labor intensity. However, existing electric strapping machines usually require workers to bend over to operate, which cannot substantially solve the defects of manual tying. Summary of the invention

[0005] In view of the above situation, the present invention provides a steel bar binding device, which does not require manual bending operation, and realizes steel wire winding by providing power through foot pedals, and automatically completes steel wire twisting by providing power through walking structures, thereby effectively improving binding efficiency, reducing labor intensity, and ensuring binding quality through standardized operations.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a steel bar binding device, including horizontal rods, which are horizontally arranged in pairs, and a hollow column is vertically fixed on the lower side of the middle part of the horizontal rod, and sliding columns are vertically and symmetrically fixed on both sides of the hollow column on the lower side of the horizontal rod. A lifting rod is vertically slidably provided on the lower position of the hollow column and the sliding column on each horizontal rod, and a tension spring is sleeved on the outer side of the sliding column, and the two ends of the tension spring are respectively fixedly connected to the horizontal rod and the lifting rod, and a twisting shaft is coaxially engaged and rotatable in the hollow column, and a releasable twisting mechanism is provided after the lower end of the twisting shaft extends out of the hollow column, and a walking twisting drive mechanism is provided between the edges of the two horizontal rods, and a foot-operated one-way wire feeding mechanism is provided on the sliding column on each horizontal rod away from the walking twisting drive mechanism, and a linkage wire cutting mechanism is provided on the lower side of the lifting rod.

[0007] The cam is an axially extending rod with a first end connected to the guide rail and a second end connected to the guide rail. The cam is fixedly provided with a first gear on the other end, and the first gear is meshed with the rack on both sides of the rack. A groove is opened on the outer side of one end of the first rotating shaft extending into the circular groove, and a first compression spring is fixedly provided at the bottom of the groove. A clamping block is fixedly provided at one end of the first compression spring, and the clamping block is tightly and slidably arranged in the groove. The outer end of the clamping block is arranged in a ratchet structure, and a ratchet tooth is fixedly provided in an array on the inner side of the circular groove. The clamping block and the ratchet tooth are matched and connected to form a ratchet structure. When each first gear moves downward toward one side of the vertical through hole, the clamping block and the ratchet tooth are tightly engaged. When each first gear rotates in the opposite direction, the clamping block and the ratchet tooth slip off and the first compression spring is compressed, so that the guide pressure wheel can only rotate in one direction. One side of the guide pressure wheel extends into the vertical through hole, and the diameter of the guide pressure wheel is larger than the diameter of the first gear, so that the linear speed of the guide pressure wheel is greater than the moving speed of the rack.

[0008] The gear train is connected with the gear shift pin to form a gear rotation, and the gear train is connected with the gear shift pin to form a gear rotation.

[0009] Furthermore, the linked wire cutting mechanism includes a mounting rod, which is vertically fixed on the lower side of the lifting rod, and a blade is horizontally fixed on the lower end of the mounting rod, with the tip of the blade facing upward, and the blade is tightly attached to a sliding column containing a vertical through hole, and the blade is located on the outlet side of the vortex hole and is perpendicular to the lifting rod.

[0010] Furthermore, the releasable twisting mechanism includes a movable groove, which is opened at the lower end of the twisting shaft, and a first limiting shaft is horizontally and symmetrically fixed on the inner edge of the movable groove, and a twisting hook is rotatably provided on the first limiting shaft, and two twisting hooks are symmetrically arranged along the twisting shaft, and a pressure plate is fixed at the upper end of the twisting hook, and a second compression spring is fixed between the two pressure plates. The second compression spring is located in the movable groove, and the lower end of the twisting hook is arranged obliquely downward to achieve the detachment of the steel wire. When the second compression spring is in the initial state, the lower ends of the two twisting hooks are tightly attached to achieve the encirclement of the steel wire.

[0011] Furthermore, a limit ring is coaxially fixed at the lower part of the hollow column, and the lifting rod is located below the limit ring. When the tension spring pulls the lifting rod upward and presses tightly against the limit ring, the blade closes the outlet of the vortex hole upward to cut off the steel wire. A nut is threadedly connected to the hollow column below the lifting rod for adjusting and limiting the descending distance of the lifting rod.

[0012] Furthermore, a bracket is symmetrically fixed on the upper side of one end of the horizontal rod away from the second support rod, a reel is rotatably provided on the bracket, a steel wire is wound on the reel, the steel wire is tightly inserted into the vertical through hole and extends out from the vortex hole outlet, and the guide pressure wheel is tightly arranged to press the steel wire to achieve the pushing of the steel wire.

[0013] Furthermore, a horizontal support foot is fixedly provided at the lower end of the sliding column for maintaining the stability of the sliding column. When the horizontal support foot is in close contact with the ground, the hook is located above the intersection of the steel bars and the outlet of the vortex hole points to the bottom of the intersection of the steel bars.

[0014] Furthermore, when all the horizontal legs are in close contact with the ground, the two hollow columns can face the diagonal intersection of the steel bar grid, so that the two hollow columns can move forward alternately with one steel bar intersection between them and move to the intersection of the steel bars that need to be tied. When the hollow column located forward in the tying direction faces the steel bar intersection, the plane of the two hooks below it is perpendicular to the plane of the extended steel wire, so that the steel wire extended from the vortex hole passes through the steel bar intersection from below under the guidance of the vortex hole, and then returns above the steel bar to pass through the hook.

[0015] Furthermore, a pedal is fixedly provided at one end of the lifting rod located in the vertical through hole, and the length direction of the pedal is arranged parallel to the forward direction of binding, so that it is convenient for workers to press down the lifting rod with their feet. A handle is fixedly provided on the outer side of the upper part of the hollow column, and the handle is arranged on the hollow column at a position facing away from the forward direction of binding, so that workers can hold it and move the hollow column forward alternately.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows:

[0017] (1) The device provides power through the foot pedal to guide the steel wire to extend out of the vortex hole to achieve winding of the steel wire, automatically cut the steel wire through the linked wire cutting mechanism, and provide power through the walking twisting drive mechanism to drive the releasable twisting mechanism to automatically complete the twisting of the steel wire. Workers only need to press down the pedal and hold the handle to move the hollow column without bending over, which effectively avoids the occurrence of occupational diseases such as back pain, cervical spondylosis, and lumbar disc herniation, and greatly reduces labor intensity.

[0018] (2) The pedal-operated one-way wire feeding mechanism uses a ratchet structure to ensure that the steel wire can be pushed downward a fixed distance each time the foot is pedaled, thereby achieving standardization of the number of wire windings, and adjusting the number of wire windings by setting a nut. The walking-type twisting drive mechanism ensures that the steel wire can be twisted a fixed number of times each time it walks through the gear ratio of the second gear and the third gear. Through the above standardized operations, the quality of steel bar binding is ensured, and the problems of loose binding and uneven binding quality in manual binding are avoided, further improving the strength, rigidity and stability of reinforced concrete structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first three-dimensional structural schematic diagram of a steel bar binding device proposed by the present invention.

[0020] Figure 2This is a second three-dimensional structural schematic diagram of a steel bar binding device proposed by the present invention.

[0021] Figure 3 This is a top view of a steel bar binding device proposed by the present invention.

[0022] Figure 4 for Figure 1 Enlarged view of part A.

[0023] Figure 5 for Figure 2 Enlarged view of part B.

[0024] Figure 6 for Figure 1 Enlarged view of part C.

[0025] Figure 7 This is a schematic diagram of the exploded structure of the position relationship between the guide pressure wheel and the through groove of the steel bar binding device proposed by the present invention.

[0026] Figure 8 A schematic diagram of the explosion structure of a releasable twisting mechanism of a steel bar binding device proposed in the present invention.

[0027] Fig. 9 This is a schematic diagram of the exploded structure of a walking twisting drive mechanism of a steel bar binding device proposed by the present invention.

[0028] Among them, 1. horizontal rod, 11. hollow column, 12. sliding column, 13. handle, 14. nut, 15. horizontal support foot, 16. bracket, 17. limit ring, 2. lifting rod, 21. pedal, 3. tension spring, 4. twisting shaft, 5. releasable twisting mechanism, 51. movable groove, 52. first limit shaft, 53. twisting hook, 54. pressure plate, 55. second compression spring, 6. foot-operated one-way wire feeding mechanism, 61. vertical through hole, 62. vortex hole, 63. rack, 64. first gear , 641, the first rotating shaft, 642, the groove, 65, the through groove, 66, the guide pressure wheel, 661, the circular groove, 662, the ratchet, 67, the block, 68, the first compression spring, 7, the walking type twisting drive mechanism, 71, the second support rod, 72, the rotating rod, 73, the second rotating shaft, 74, the first support rod, 75, the second limiting shaft, 76, the connecting rod, 77, the second gear, 78, the third gear, 8, the linkage wire cutting mechanism, 81, the mounting rod, 82, the blade, 9, the reel, 91, the steel wire.

[0029] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it is necessary to understand that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, the present invention proposes a steel bar binding device, including a horizontal rod 1, which is horizontally arranged in pairs, and a hollow column 11 is vertically fixed on the lower middle side of the horizontal rod 1, and sliding columns 12 are vertically and symmetrically fixed on both sides of the hollow column 11 on the lower side of the horizontal rod 1, and a lifting rod 2 is vertically slidably provided at the lower position of the hollow column 11 and the sliding column 12 on each horizontal rod 1, and a tension spring 3 is sleeved on the outer side of the sliding column 12, and the two ends of the tension spring 3 are respectively fixedly connected to the horizontal rod 1 and the lifting rod 2, and a twisting shaft 4 is coaxially engaged and rotatable in the hollow column 11, and a releasable twisting mechanism 5 is provided after the lower end of the twisting shaft 4 extends out of the hollow column 11, and a walking twisting drive mechanism 7 is provided between the edges of the two horizontal rods 1, and a foot-operated one-way wire feeding mechanism 6 is provided on the sliding column 12 on each horizontal rod 1 away from the walking twisting drive mechanism 7, and a linkage wire cutting mechanism 8 is provided on the lower side of the lifting rod 2.

[0033] The pedal-operated one-way wire feeding mechanism 6 includes a vertical through hole 61, a rack 63 and a first rotating shaft 641. The vertical through hole 61 is vertically opened at the axial position of the sliding column 12 away from the walking twisting drive mechanism 7. The upper end of the vertical through hole 61 passes through the sliding column 12. The lower end of the vertical through hole 61 is connected to a vortex hole 62. The vortex hole 62 is a vortex line structure. The lower end of the vortex hole 62 passes through the sliding column 12 obliquely downward on the side facing the hollow column 11. The rack 63 is vertically The rack 63 is fixed on the lower side of the lifting rod 2, and gear segments are arranged on both sides of the rack 63. Through grooves 65 are symmetrically arranged on both sides of the lower part of the vertical through hole 61. The through grooves 65 are vertically opened on the surface of the sliding column 12 and communicated with the vertical through hole 61. A guide pressure wheel 66 is tightly arranged in the through groove 65. One side of the guide pressure wheel 66 is rotatably connected to the sliding column 12. A circular groove 661 is opened in the center of the surface of the other side of the guide pressure wheel 66. One end of the first rotating shaft 641 passes through the sliding column 12 and then vertically extends into the circular groove 66. 1, a first gear 64 is coaxially fixed on the other end of the first rotating shaft 641, and the first gear 64 is meshed with the rack 63 on both sides of the rack 63. A groove 642 is opened on the outer side of one end of the first rotating shaft 641 extending into the circular groove 661, and a first compression spring 68 is fixedly provided at the bottom of the groove 642. A clamping block 67 is fixedly provided at one end of the first compression spring 68. The clamping block 67 is tightly and slidably arranged in the groove 642. The outer end of the clamping block 67 is arranged in a ratchet structure, and ratchet teeth 662 are fixedly arranged in an array on the inner side of the circular groove 661. The clamping block 67 and the ratchet teeth 662 are matched and connected to form a ratchet structure. When each first gear 64 moves downward facing one side of the vertical through hole 61, the clamping block 67 is tightly engaged with the ratchet teeth 662. When each first gear 64 rotates in the opposite direction, the clamping block 67 and the ratchet teeth 662 slip off and the first compression spring 68 is compressed, so that one side of the guide pressure wheel 66 extends into the vertical through hole 61, and the diameter of the guide pressure wheel 66 is larger than that of the first gear 64.

[0034] Among them, the walking twisting drive mechanism 7 includes a second support rod 71, which is fixedly arranged on one side of each horizontal rod 1 above and close to another horizontal rod 1, and the horizontal section of the second support rod 71 is spaced apart from the horizontal rod 1. A rotating rod 72 is horizontally and tightly arranged on the upper side of the second support rod 71, and a second rotating shaft 73 is vertically fixedly arranged on the lower side of the rotating rod 72. After the lower end of the second rotating shaft 73 slides through the second support rod 71, a second gear 77 is coaxially fixedly arranged. The second gear 77 is tightly attached to the second support rod 71 and the horizontal rod 1, and a third gear 78 is arranged on one side of the second gear 77. The third gear 78 is coaxially fixedly connected to the twisting shaft 4 extending from the hollow column 11. A first support rod 74 is symmetrically fixedly arranged at one end of the rotating rod 72 close to the other horizontal rod 1, and a second limiting shaft 75 is horizontally fixedly arranged between the first support rods 74. A connecting rod 76 is arranged between the two rotating rods 72, and both ends of the connecting rod 76 are respectively rotatably connected to the second limiting shaft 75, and the second gear 77 is meshed with the third gear 78. The number of teeth of the second gear 77 is greater than that of the third gear 78.

[0035] The linkage wire cutting mechanism 8 includes a mounting rod 81, which is vertically fixed to the lower side of the lifting rod 2. A blade 82 is horizontally fixed to the lower end of the mounting rod 81. The tip of the blade 82 is set upward. The blade 82 is in close contact with the sliding column 12 containing the vertical through hole 61. The blade 82 is located at the outlet side of the vortex hole 62 and is perpendicular to the lifting rod 2. The releasable twisting mechanism 5 includes a movable groove 51, which is opened at the lower end of the twisting shaft 4. The inner edge of the movable groove 51 is horizontally symmetrically fixed with a first limit shaft 52, and a twisting hook 53 is rotatably provided on the first limit shaft 52. The two twisting hooks 53 are It is symmetrically arranged along the twisting shaft 4, and a pressure plate 54 is fixed on the upper end of the twisting hook 53, and a second compression spring 55 is fixed between the two pressure plates 54. The second compression spring 55 is located in the movable groove 51, and the lower end of the twisting hook 53 is arranged obliquely downward. When the second compression spring 55 is in the initial state, the lower ends of the two twisting hooks 53 are tightly attached, and a limit ring 17 is coaxially fixed on the lower part of the hollow column 11, and the lifting rod 2 is located below the limit ring 17. When the tension spring 3 pulls the lifting rod 2 upward and presses it tightly against the limit ring 17, the blade 82 closes the outlet of the vortex hole 62 upward, and the hollow column 11 is threadedly connected with a nut 14 below the lifting rod 2.

[0036] Among them, a bracket 16 is symmetrically fixed on the upper side of one end of the horizontal rod 1 away from the second support rod 71, a reel 9 is rotatably provided on the bracket 16, a steel wire 91 is wound on the reel 9, the steel wire 91 is tightly inserted into the vertical through hole 61 and extends out from the outlet of the vortex hole 62, the guide pressure wheel 66 is tightly arranged with the steel wire 91, a horizontal support foot 15 is fixed on the lower end of the slide column 12, and when the horizontal support foot 15 is tightly attached to the ground, the hook 53 is located above the intersection of the steel bars and the outlet of the vortex hole 62 points to the bottom of the intersection of the steel bars, all the horizontal support feet When 15 is in close contact with the ground, the two hollow columns 11 can face the diagonal intersection of the steel bar grid. When the hollow column 11 located forward in the direction of forward binding faces the intersection of the steel bars, the plane where the two hooks 53 below it are located is perpendicular to the plane where the extended steel wires 91 are located. The lifting rod 2 is fixedly provided with a pedal 21 at one end located in the vertical through hole 61. The length direction of the pedal 21 is arranged parallel to the forward direction of binding. A handle 13 is fixedly provided on the outer side of the upper part of the hollow column 11. The handle 13 is arranged on the hollow column 11 at a position facing away from the forward direction of binding.

[0037] When in use, the device is placed at the position of the horizontally laid steel mesh. Since there is a distance between the steel bars and the ground, the poured concrete can protect the steel bars. Therefore, the horizontal support leg 15 can be placed on the ground below the steel bars. Before tying, the placement position of the device is first determined. The user holds the handle 13 with both hands in the position opposite to the handle 13. The left hand controls the hollow column 11 on the left to move to the left intersection position of the steel grid and this intersection position is close to the user. The right hand controls the hollow column 11 on the right to move to the right intersection position of the steel grid. The device is then lowered and the horizontal support leg 15 passes through the steel bar and touches the ground. At this time, the left and right pedals 21 are facing the user. Then, the right foot steps on the right pedal 21, which drives the lifting rod 2 to move downward, thereby driving the rack 63 to move downward, driving the gears on both sides to rotate downward on the inside, and then driving the first rotating shaft 641 and the block 67 to rotate in the same direction. The block 67 clamps the ratchet 662 to make the guide pressure wheel 66 rotate in the same direction, so that the inner side of the guide pressure wheel 66 is located at the vertical The portion in the through hole 61 pushes the steel wire 91 downward, so that the steel wire 91 extends out from the vortex hole 62. Since the steel wire 91 has a strong plastic deformation ability, the portion extending after being guided and squeezed by the vortex hole 62 forms a vortex structure similar to a mosquito coil, and it continues. This is the prior art of the electric strapping machine winding the steel wire 91 around the cross position of the steel bars, so it will not be repeated. After the steel wire 91 passes through the steel bars from below, it returns from above and passes between the two hooks 53, and repeats this for many times, thereby achieving multiple turns of winding, until the lifting rod 2 is at a preset height. After the nut 14 contacts, stop pedaling and release it. At this time, the lifting rod 2 is reset under the tension of the tension spring 3, and drives the first rotating shaft 641 to move in the opposite direction, so that the block 67 rotates in the opposite direction. After the block 67 contacts each ratchet tooth 662, it slides down and presses down the first compression spring 68, so that the block 67 cannot drive the guide pressure wheel 66 to rotate, so that the steel wire 91 will not retreat. When the lifting rod 2 contacts the upper limit ring 17 and stops, the installation rod 81 drives the blade 82 to just cut the steel wire 91 and stop, thereby realizing the winding and cutting of the steel bar.

[0038] Then, the right hand does not move, the left hollow column 11 is lifted up with the left hand and moves forward, the left side of the connecting rod 76 is lifted up and is always connected with the second limit shaft 75 on the right side, and the connecting rod 76 will drive the rotating rod 72 to rotate around the second rotating shaft 73 when the left side of the connecting rod 76 moves forward, and the second rotating shaft 73 also rotates to drive the second gear 77 to rotate, thereby driving the third gear 78 and the twisting shaft 4 to rotate, so that the twisting hook 53 hooks the steel wire 91 for twisting, and when the left hollow column 11 crosses an intersection forward and comes to the diagonal position of the intersection on the right side, it stops and falls, at this time the second gear 77 stops rotating, and then the twisting hook 53 stops twisting, and because the number of teeth of the second gear 77 is greater than that of the third gear 78, the steel wire 91 can be twisted multiple times, and then the left side is stepped on. The pedal 21 realizes the winding of the left cross steel bars according to the above-mentioned operating rules. After the left steel wire 91 is wound and cut, the right hollow column 11 is lifted. Since the lower end of the hook 53 is arranged obliquely downward, the steel wire 91 presses down the hook 53 after the hook 53 is lifted, and the hook 53 rotates to both sides and opens. At the same time, the second compression spring 55 is compressed, and the steel wire 91 is separated from the hook 53 and then reset and closed, thereby completely realizing the winding, cutting, twisting and separation of the steel wire 91 at the intersection of a single steel bar. At the same time, the connecting rod 76 can be set to a retractable fixed structure. By adjusting the length of the connecting rod 76, the binding of steel bar grids of different specifications is realized. When the interval binding of two columns of steel bars in one direction is completed, the remaining steel bars in the two columns are bound in the opposite direction.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0041] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A steel bar tying device, comprising a horizontal bar (1), characterized in that: The horizontal rods (1) are arranged in pairs horizontally, a hollow column (11) is vertically fixed on the lower side of the middle of the horizontal rod (1), sliding columns (12) are vertically symmetrically fixed on both sides of the hollow column (11) on the lower side of the horizontal rod (1), and a lifting rod (2) is vertically slidably provided at the lower position of the hollow column (11) and the sliding column (12) on each horizontal rod (1), and a tension spring (3) is sleeved on the outer side of the sliding column (12), and the two ends of the tension spring (3) are respectively connected to the horizontal rod (1). The hollow column (11) is fixedly connected to the lifting rod (2), a twisting shaft (4) is coaxially engaged and rotatable in the hollow column (11), a releasable twisting mechanism (5) is provided after the lower end of the twisting shaft (4) extends out of the hollow column (11), a walking twisting drive mechanism (7) is provided between the edges of the two horizontal rods (1), a foot-operated one-way wire feeding mechanism (6) is provided on a sliding column (12) on each horizontal rod (1) away from the walking twisting drive mechanism (7), and a linked wire cutting mechanism (8) is provided on the lower side of the lifting rod (2); The walking type twisting driving mechanism (7) comprises a second support rod (71), the second support rod (71) being fixedly arranged on one side of each horizontal rod (1) above and close to another horizontal rod (1), the horizontal section of the second support rod (71) being spaced apart from the horizontal rod (1), a rotating rod (72) being horizontally and tightly arranged on the upper side of the second support rod (71), a second rotating shaft (73) being vertically and fixedly arranged on the lower side of the rotating rod (72), a second gear (77) being coaxially fixedly arranged after the lower end of the second rotating shaft (73) slides through the second support rod (71), the second gear (77) being tightly arranged on the second support rod (71) and the horizontal rod (1), the second A third gear (78) is provided on one side of the gear (77), and the third gear (78) is coaxially fixedly connected to a twisting shaft (4) extending from the hollow column (11). A first support rod (74) is symmetrically fixedly provided at one end of the rotating rod (72) close to the other horizontal rod (1), and a second limit shaft (75) is horizontally fixedly provided between the first support rods (74). A connecting rod (76) is provided between the two rotating rods (72), and both ends of the connecting rod (76) are respectively rotatably connected to the second limit shaft (75). The second gear (77) is meshedly connected to the third gear (78), and the number of teeth of the second gear (77) is greater than the number of teeth of the third gear (78).

2. A steel bar tying device according to claim 1, characterized in that: The pedal-type one-way wire feeding mechanism (6) comprises a vertical through hole (61), a rack (63) and a first rotating shaft (641). The vertical through hole (61) is vertically opened at an axial position of a sliding column (12) away from the walking twisting drive mechanism (7). The upper end of the vertical through hole (61) passes through the sliding column (12). The lower end of the vertical through hole (61) is connected to a vortex hole (62). The vortex hole (62) is in a vortex line structure. The lower end of the vortex hole (62) passes through the sliding column (12) obliquely downward on the side facing the hollow column (11). The rack (63) is vertically The rack (63) is fixedly arranged at the lower side of the lifting rod (2), and tooth segments are arranged on both sides of the rack (63). Through grooves (65) are symmetrically arranged on both sides of the lower part of the vertical through hole (61). The through grooves (65) are vertically opened on the surface of the sliding column (12) and communicated with the vertical through hole (61). A guide pressure wheel (66) is tightly arranged in the through groove (65). One side of the guide pressure wheel (66) is rotatably connected to the sliding column (12), and a circular groove (661) is opened at the center of the surface of the other side of the guide pressure wheel (66). One end of the first rotating shaft (641) passes through the sliding column (12) and then vertically extends into the circular groove (66). 61), a first gear (64) is coaxially fixedly disposed at the other end of the first rotating shaft (641), the first gear (64) is meshingly connected with the rack (63) on both sides of the rack (63), a groove (642) is formed on the outer side of one end of the first rotating shaft (641) extending into the circular groove (661), a first compression spring (68) is fixedly disposed at the bottom of the groove (642), a clamping block (67) is fixedly disposed at one end of the first compression spring (68), the clamping block (67) is tightly slidably disposed in the groove (642), the outer end of the clamping block (67) is arranged in a ratchet structure, the A ratchet (662) is fixedly arranged in an array on the inner side of the circular groove (661), and the clamping block (67) and the ratchet (662) are matched and connected to form a ratchet structure. When each first gear (64) moves downward facing one side of the vertical through hole (61), the clamping block (67) and the ratchet (662) are tightly engaged. When each first gear (64) rotates in the opposite direction, the clamping block (67) and the ratchet (662) slip off and the first compression spring (68) is compressed. One side of the guide pressure wheel (66) extends into the vertical through hole (61), and the diameter of the guide pressure wheel (66) is larger than the diameter of the first gear (64).

3. A steel bar tying device according to claim 2, characterized in that: The linked wire cutting mechanism (8) comprises a mounting rod (81), the mounting rod (81) being vertically fixed on the lower side of the lifting rod (2), a blade (82) being horizontally fixed on the lower end of the mounting rod (81), the tip of the blade (82) being arranged upward, the blade (82) being in close contact with a sliding column (12) containing a vertical through hole (61), and the blade (82) being located on the outlet side of the vortex hole (62) and being perpendicular to the lifting rod (2).

4. A steel bar tying device according to claim 3, characterized in that: The releasable twisting mechanism (5) comprises a movable groove (51), the movable groove (51) being formed at the lower end of the twisting shaft (4), a first limit shaft (52) being fixedly provided horizontally and symmetrically on the inner edge of the movable groove (51), a twisting hook (53) being rotatably provided on the first limit shaft (52), two twisting hooks (53) being symmetrically arranged along the twisting shaft (4), a pressing plate (54) being fixedly provided at the upper end of the twisting hook (53), a second compression spring (55) being fixedly provided between the two compression plates (54), the second compression spring (55) being located in the movable groove (51), the lower end of the twisting hook (53) being arranged obliquely downward, and the lower ends of the two twisting hooks (53) being tightly attached when the second compression spring (55) is in an initial state.

5. A steel bar tying device according to claim 4, characterized in that: A limiting ring (17) is coaxially fixedly disposed at the lower part of the hollow column (11), and the lifting rod (2) is located below the limiting ring (17). When the tension spring (3) pulls the lifting rod (2) upward to be in close contact with the limiting ring (17), the blade (82) closes the outlet of the vortex hole (62) upward, and a nut (14) is threadedly connected to the hollow column (11) below the lifting rod (2).

6. A steel bar tying device according to claim 5, characterized in that: A bracket (16) is symmetrically fixedly provided on the upper side of one end of the upper side of the horizontal rod (1) away from the second support rod (71); a reel (9) is rotatably provided on the bracket (16); a steel wire (91) is wound around the reel (9); the steel wire (91) is tightly inserted into the vertical through hole (61) and extends out from the outlet of the vortex hole (62); and the guide pressure wheel (66) is tightly arranged to press the steel wire (91).

7. A steel bar tying device according to claim 6, characterized in that: A horizontal support foot (15) is fixedly provided at the lower end of the sliding column (12); when the horizontal support foot (15) is in close contact with the ground, the hook (53) is located above the intersection of the steel bars and the outlet of the vortex hole (62) points to the bottom of the intersection of the steel bars.

8. A steel bar tying device according to claim 7, characterized in that: When all the horizontal legs (15) are in close contact with the ground, the two hollow columns (11) can face the diagonal intersection of the steel bar grid, and when the hollow column (11) located forward in the direction of tying faces the intersection of the steel bars, the plane where the two hooks (53) below it are located is perpendicular to the plane where the extended steel wire (91) is located.

9. A steel bar tying device according to claim 8, characterized in that: A pedal (21) is fixedly provided at one end of the lifting rod (2) located in the vertical through hole (61), and the length direction of the pedal (21) is arranged parallel to the forward direction of lashing. A handle (13) is fixedly provided on the outer side of the upper part of the hollow column (11), and the handle (13) is arranged at a position on the hollow column (11) facing away from the forward direction of lashing.

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