Efficient steel bar tying device for building construction

Abstract

The present application relates to the field of steel bar tying, in particular to a high-efficiency steel bar tying and binding device for building construction, comprising a steel bar and a steel wire, which solves the problem that the existing steel wire binding devices have roughly the same size, and it is difficult for the workers to select the applicable binding device according to their own height and the height of the binding operation platform to work, and the effect of reducing labor intensity is not obvious, solves the problem that after the existing binding device finishes tying the wire, the winding and knotting part of the steel wire is often exposed above the steel bar layer, increasing the probability of workers being scuffed when walking on the upper layer of the steel bar, also increasing the unevenness of the steel bar binding layer, affecting the supporting and fitting effect of the template in the later stage.

Description

Technical Field

[0001] This invention relates to the field of rebar tying wire, specifically to a high-efficiency rebar tying wire binding device for building construction. Background Technology

[0002] Construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of structures, or the process of turning the lines on design drawings into physical objects at designated locations. In engineering construction, to ensure the rigidity and stability of the foundation or supporting columns, reinforcing bars are combined to form a complete grid, figuratively called a "reinforcing cage," "reinforcing mesh," or "reinforcing skeleton." A complete reinforcing mesh helps to restrain concrete and improve the overall integrity of concrete components.

[0003] The formation and fixing of a reinforcing steel cage is a complex process. Currently, wire tying is commonly used to connect and fix the reinforcing bars. However, due to the large workload and complexity of tying the wires in the reinforcing steel cage, tying tools are needed to assist in the tying operation and reduce the workload of workers. However, existing wire tying tools often have the following problems in practical use:

[0004] The existing wire tying tools are roughly the same size, making it difficult for workers to select the appropriate tool based on their own height and the height of the tying platform. This results in a lack of significant reduction in labor intensity. Furthermore, after the wire is tied, the knotted part of the existing tying tool is often exposed above the rebar layer, increasing the probability of workers being tripped and scratched when walking on the rebar. It also increases the unevenness of the rebar tying layer, affecting the support and fit of the formwork later. Summary of the Invention

[0005] This invention provides a high-efficiency rebar tying tool for building construction, which solves the technical problem that after the existing tying tool is completed, the knotted part of the steel wire is often exposed above the rebar layer, which increases the probability of workers being bumped and scratched when walking on the upper layer of rebar, and affects the support and bonding effect of the formwork in the later stage.

[0006] The present invention adopts the following technical solution: a high-efficiency rebar tying wire binding device for building construction, comprising rebar and steel wire, wherein guide rods are symmetrically installed above the rebar, and the steel wire is movably installed inside the guide rods;

[0007] The guide rod is vertically installed at two opposing angles at the intersection of the reinforcing bars. A lifting frame is fixedly installed on the upper part of the guide rod, and a guide frame is fixedly installed on the middle part of the guide rod. Both the lifting frame and the guide frame are rectangular frame structures. A winding frame is movably installed on the lower part of the guide rod. An extrusion plate is installed between the guide frame and the lifting frame. The extrusion plate is parallel to the central axis of the guide rod and is located at two opposing corners of the guide frame. A plug-in rod is fixedly installed on the side of the lifting frame. The plug-in rod is located on both sides of the extrusion plate, and the lower end of the extrusion plate is fixedly connected to the plug-in rod. A mounting bracket is slidably installed on the plug-in rod.

[0008] Preferably, the guide rod has a two-section structure, with the upper half of the guide rod being an extension and the lower half being a fixed part. A gap is reserved between the extension and the fixed part to cooperate with the steel wire, and the extension and the fixed part are fixedly connected by a mating piece. The guide frame is located at the connection position between the extension and the fixed part. Hollow cavities that are symmetrically opened in the fixed part and the extension and are mutually connected and slide with the steel wire are provided.

[0009] Preferably, the docking pieces are located on both sides of the central axis of the guide rod. The middle of the docking piece is provided with an annular hole that slides with the steel wire. Guide pieces are symmetrically installed in the hollow cavity of the fixing part and the extension part near the docking piece. The guide pieces are "V" shaped and the tip of the guide piece points to the central axis of the guide rod.

[0010] Preferably, the winding frame includes a fixed rod, a push rod, and a winding ring. The fixed rod is fixedly installed at the lower end of the fixed part. The central axis of the fixed rod is parallel to the central axis of the guide rod. The push rod is perpendicular to the central axis of the fixed rod. A first groove is provided at the front of the push rod. The lower end of the fixed rod slides through the first groove. A first spring is connected between the outer wall of the lower end of the fixed rod and the inner wall of the first groove. A winding ring is movably installed at the front of the push rod.

[0011] Preferably, a push plate is fixedly installed at the front end of the push rod. The push plate has a bow-shaped structure. The winding rings are located at the upper and lower ends of the push plate. A second sliding groove is opened at the rear of the push rod. A tension rod is slidably installed in the second sliding groove. A second spring is connected between the middle of the tension rod and the inner wall of the second sliding groove. Pull rings are installed on both the fixed rod and the push rod. A toggle rod is slidably installed at the upper end of the fixed rod. A pull rope is connected between the toggle rod and the tension rod. The middle part of the pull rope slides through the pull rings on the fixed rod and the push rod, respectively.

[0012] Preferably, all the winding rings are semi-circular ring structures with the same structure. The middle of the winding ring is provided with a groove that cooperates with the steel wire. A guide plate is fixedly installed on the upper end of the push plate. An inclined surface is provided in the upper middle part of the guide plate, and the bottom of the inclined surface points to the groove. Annular grooves are provided on both the upper and lower sides of the winding ring. A locking shaft is provided on the push plate that slides and engages with the annular groove. A permanent magnet block is provided at the end of the annular surface of the winding ring. The end faces of two winding rings located at the same height and facing each other are complementary.

[0013] Preferably, the upper and lower ends of the tension rod are both equipped with crossbars via bearings, and a torsion spring connects the crossbars to the tension rods. The end of the crossbars slides against the side wall of the winding ring, and a half-tooth ring is provided in the middle of the annular surface of the winding ring. The side wall of the crossbars is provided with meshing teeth that mesh with the half-tooth ring.

[0014] Preferably, the mounting frame includes an operating rod, a U-shaped plate, a mounting shaft, and a compression spring. The U-shaped plate is installed between the plug rods on both sides of the extrusion plate through a sliding fit. A connecting block is fixedly installed in the middle of the U-shaped plate. The operating rod has a downward-opening C-shaped structure. The lower part of the operating rod is fixedly connected to the connecting block, and the upper part of the operating rod is located inside the lifting frame. The contact part between the upper part of the operating rod and the lifting frame is provided with mutually attractive permanent magnets. The mounting shaft is installed between the U-shaped plate and the connecting block through a sliding fit. The middle part of the mounting shaft is connected to the U-shaped plate through a compression spring.

[0015] Preferably, a spherical block is fixedly provided at the end of the placement shaft near the extrusion sheet, and the spherical block slides against the side wall of the extrusion sheet, and the upper end of the extrusion sheet is provided with a bent portion moving away from the placement shaft.

[0016] Preferably, the placement shafts are located on both sides of the central axis of the guide rod, and the ends of the two opposing placement shafts are attached to each other. The attached ends of the placement shafts are symmetrically equipped with pressing plates, which have a "V" shaped structure and are attached to the steel wire.

[0017] The beneficial effects of this invention are:

[0018] (1) The high-efficiency rebar tying tool for building construction described in this invention, through the two-section guide rod design, enables workers to complete the rebar wire tying operation at a suitable height, reducing labor intensity. Through the staggered insertion and abutment action around the rebar intersection, the operation stability during the wire delivery and tying process can be enhanced. Through the one-way lifting or pressing operation mode, the operation complexity during the wire tying process can be reduced. At the same time, the tying part of the wire and the rebar is adaptively bent and automatically positioned. The set pressing plate can expand the bending arc of the wire, thereby increasing the contact range when the wire and the rebar are in contact, and improving the stability of the connection part after tying.

[0019] (2) The high-efficiency steel wire binding device for building construction described in this invention can automatically cross and twist the steel wires in the bent state through the butt-joint winding ring, thereby improving the efficiency of steel wire binding operations. By binding the steel wires with the ends pointing downwards, the binding and knotting parts can be directed to the bottom of the steel layer. This not only improves the flatness of the upper layer of steel but also reduces the probability of workers being bumped or scratched when walking on the upper layer of steel. At the same time, it increases the fit between the formwork and the steel during the later pouring process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0021] Figure 1 This is a schematic diagram of the first working state of the present invention;

[0022] Figure 2 This is a schematic diagram of the second working state of the present invention;

[0023] Figure 3 For the present invention Figure 2 A top-down view;

[0024] Figure 4 This is a partial cross-sectional plan view of the present invention;

[0025] Figure 5 This is a schematic diagram showing the positional relationship between the guide rod and the steel wire of the present invention;

[0026] Figure 6 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged view of point A;

[0028] Figure 8 This is a schematic diagram showing the positional relationship between the plug rod, guide frame, and mounting shaft of the present invention;

[0029] Figure 9 This is a schematic diagram showing the positional relationship between the fixing rod, the fixing part, and the steel wire of the present invention;

[0030] Figure 10 For the present invention Figure 9 Enlarged view of point B;

[0031] Figure 11This is a schematic diagram showing the positional relationship between the fixing rod, the pushing rod, and the pushing plate of the present invention;

[0032] In the diagram: 00, reinforcing bar; 01, steel wire; 1, guide rod; 2, lifting frame; 3, guide frame; 4, winding frame; 5, extrusion plate; 6, plug-in rod; 7, mounting frame; 11, extension section; 12, fixing section; 13, connecting plate; 14, guide plate; 41, fixing rod; 42, push rod; 43, winding ring; 421, first chute; 422, first spring; 423, push plate; 424, second chute; 425, tension rod. ; 426. Second spring; 411. Pull ring; 412. Actuating lever; 413. Pull rope; 428. Guide plate; 431. Annular groove; 432. Locking shaft; 433. Permanent magnet block; 427. Crossbar; 434. Half gear ring; 71. Operating lever; 72. "U" shaped plate; 73. Mounting shaft; 74. Compression spring; 721. Connecting block; 711. Permanent magnet sheet; 731. Spherical block; 51. Bending part; 732. Pressing piece. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] An embodiment of the present invention is described below. Figures 1 to 3 A high-efficiency rebar tying wire binder for building construction includes rebar 00 and steel wire 01. Guide rods 1 are symmetrically installed above the rebar 00, and steel wire 01 is movably installed inside the guide rods 1.

[0035] As one embodiment of the present invention, such as Figure 2 , Figure 4 and Figure 5As shown, the guide rod 1 is vertically installed at two opposing angles at the intersection of the reinforcing bars 00. A lifting frame 2 is fixedly installed on the upper part of the guide rod 1, and a guide frame 3 is fixedly installed in the middle of the guide rod 1. Both the lifting frame 2 and the guide frame 3 are rectangular frame structures. A winding frame 4 is movably installed on the lower part of the guide rod 1. An extrusion plate 5 is installed between the guide frame 3 and the lifting frame 2. The extrusion plate 5 is parallel to the central axis of the guide rod 1 and is located at two opposing corners of the guide frame 3. A connecting rod 6 is fixedly installed on the side of the lifting frame 2. The connecting rod 6 is located on both sides of the extrusion plate 5, and the lower end of the extrusion plate 5 is fixedly connected to the connecting rod 6. A mounting bracket 7 is slidably installed on the connecting rod 6. The guide rod 1 has a two-section structure; the upper half of the guide rod 1 is... The lower half of the extension part 11 and the guide rod 1 is the fixing part 12. A gap is reserved between the extension part 11 and the fixing part 12 to cooperate with the steel wire 01. The extension part 11 and the fixing part 12 are fixedly connected by the docking piece 13. The guide frame 3 is located at the connection position between the extension part 11 and the fixing part 12. Hollow cavities that are interconnected and slide with the steel wire 01 are symmetrically opened in the fixing part 12 and the extension part 11. The docking piece 13 is located on both sides of the central axis of the guide rod 1. The middle of the docking piece 13 is provided with an annular hole that slides with the steel wire 01. Guide pieces 14 are symmetrically installed in the hollow cavities of the fixing part 12 and the extension part 11 near the docking piece 13. The guide piece 14 is "V" shaped and the tip of the guide piece 14 points to the central axis of the guide rod 1.

[0036] In practice, the staff first connects the extension part 11 and the fixing part 12 to make the guide rod 1 reach the optimal operating length for the user. After the connection is completed, the connecting part between the extension part 11 and the fixing part 12 is locked by the docking piece 13, thereby locking the overall length of the guide rod 1. Then, the staff pre-cuts the steel wire 01 to be tied into small segments of predetermined length.

[0037] As one embodiment of the present invention, such as Figures 6 to 8As shown, the mounting frame 7 includes an operating rod 71, a U-shaped plate 72, a mounting shaft 73, and a compression spring 74. The U-shaped plate 72 is mounted between the insertion rods 6 on both sides of the compression plate 5 via a sliding fit. A connecting block 721 is fixedly mounted in the middle of the U-shaped plate 72. The operating rod 71 has a downward-opening C-shaped structure. The lower part of the operating rod 71 is fixedly connected to the connecting block 721, and the upper part of the operating rod 71 is located inside the lifting frame 2. Permanent magnet plates 711 that attract each other are provided at the contact points between the upper part of the operating rod 71 and the lifting frame 2. The U-shaped plate 72 and the connecting block 721 are connected via a sliding fit. A common mounting shaft 73 is installed. The middle part of the mounting shaft 73 is connected to the "U"-shaped plate 72 through a compression spring 74. A spherical block 731 is fixedly installed at the end of the mounting shaft 73 near the extrusion plate 5, and the spherical block 731 slides against the side wall of the extrusion plate 5. The upper end of the extrusion plate 5 is provided with a bent part 51 that moves away from the mounting shaft 73. The mounting shafts 73 are located on both sides of the central axis of the guide rod 1, and the ends of the two opposing mounting shafts 73 are in contact with each other. Pressing plates 732 are symmetrically installed at the contacting ends of the mounting shafts 73. The pressing plates 732 have a "V"-shaped structure and are in contact with the steel wire 01.

[0038] In the initial working condition, the "U"-shaped plate 72 is located below the insertion rod 6. At this time, the upper end of the operating rod 71 is in contact with the upper surface of the lifting frame 2, and the permanent magnet plates 711 symmetrically arranged at the contact points of the operating rod 71 and the lifting frame 2 are in a state of mutual attraction. Subsequently, after the preparation work is completed, the operator holds and lifts the operating rod 71. Under the attraction of the permanent magnet plates 711, the lifting frame 2 is lifted synchronously. Through the operator's handling, the guide rod 1 and its accessories are moved to the intersection of the rebar 00 to be tied. Then, the operating rod 71 is lowered, and the lifting frame 2 is lifted. The frame 2 moves the plug rod 6 toward the direction of the rebar 00. When the plug rod 6 descends to the predetermined height, the lower end of the plug rod 6 passes through the intersection of the rebar 00 to the bottom of the rebar 00, and the side walls of the two plug rods 6 abut against the side walls of the two intersecting rebars 00 respectively. During the downward movement of the plug rod 6, the fixing part 12 moves down synchronously and enters the other two included angle positions of the intersecting part of the rebar 00. At this time, under the four-way limiting and blocking action of the fixing part 12 and the plug rod 6, the positions of the fixing part 12, the plug rod 6 and the rebar 00 are in a relatively locked state.

[0039] Subsequently, the operator continued to push the operating lever 71 downwards until the placement shaft 73 abutted against the outer wall of the reinforcing bar 00. Then, the operator inserted a pre-cut section of steel wire 01 into the annular hole in the middle of the connecting piece 13. After entering, the steel wire 01 horizontally passed through the gap between the extension part 11 and the fixing part 12, and exited from the annular hole in the middle of the connecting piece 13 on the other side. Then, the fixing part 12 and the insertion rod 6 were kept vertically positioned in the predetermined position, and the operating lever 71 was pulled up to release the mutual attraction between the permanent magnet 711 between the operating lever 71 and the lifting frame 2. With the operator's pull, the operating lever 71 caused the "U"-shaped plate 72 to slide upwards on the insertion rod 6. At this time, under the elastic force of the compression spring 74, the spherical block 731 at the end of the placement shaft 73... The two mounting shafts 73, which are at the same height and opposite each other, slide against the side wall of the extrusion plate 5 and are in a close-fitting state. When the mounting shaft 73 rises to the connection part between the extension part 11 and the fixing part 12, the pressing plate 732 at the end of the mounting shaft 73 gradually abuts against the middle of the steel wire 01. Then, under the action of the operator pulling the operating rod 71 further, the mounting shaft 73 drives the middle of the steel wire 01 to move upward synchronously through the abutment action. Since the two ends of the steel wire 01 are respectively limited and locked by the two connecting plates 13 on both sides, the middle of the steel wire 01 gradually bends under the upward pushing action of the mounting shaft 73. During the bending process, the two ends of the steel wire 01 gradually enter the hollow cavity of the extension part 11 until the steel wire 01 forms an inverted "U" shaped bend.

[0040] Subsequently, as the placement shaft 73 moves the bent steel wire 01 upwards synchronously, when the spherical block 731 slides to the bending part 51 of the extrusion plate 5, it slides into the bending part 51 under the force of the compression spring 74. At this time, the two placement shafts 73, which are in a close-fitting state, move away from each other and gradually release their bottom support for the steel wire 01. Then, under the action of gravity, the steel wire 01 slides downwards along the hollow cavity of the extension 11 and reaches the position below the placement shaft 73. Subsequently, the operator presses the operating lever 71 downwards again, which drives the placement shaft 73 downwards. During the downward movement of the placement shaft 73, the spherical block 731 moves out of the bending part 51 again, and the two opposing placement shafts 73 move downwards again. Approaching and fitting together, the placement shaft 73 moves closer to the steel wire 01 and gradually abuts against the bent part of the steel wire 01 under the further pushing action of the staff. Then, the placement shaft 73 pushes the steel wire 01 downward synchronously. The guide plate 14 set at the junction of the fixing part 12 and the extension part 11 can guide the end of the steel wire 01, so that it can smoothly transition in the hollow cavity of the fixing part 12 and the extension part 11. When the steel wire 01 descends to the predetermined height position, its bent part abuts against the upper side wall of the steel bar 00. At this time, the operating rod 71 and the lifting frame 2 are again attracted and fixed by the permanent magnet plate 711. The pressing plate 732 can expand the bending arc of the steel wire 01, thereby increasing the contact range when the steel wire 01 and the steel bar 00 fit together.

[0041] As one embodiment of the present invention, such as Figure 3 , Figure 9 , Figure 10 and Figure 11As shown, the winding frame 4 includes a fixed rod 41, a pushing rod 42, and a winding ring 43. The fixed rod 41 is fixedly installed at the lower end of the fixed part 12. The central axis of the fixed rod 41 is parallel to the central axis of the guide rod 1. The pushing rod 42 is perpendicular to the central axis of the fixed rod 41. A first groove 421 is provided at the front of the pushing rod 42. The lower end of the fixed rod 41 slides through the first groove 421, and a first spring 422 connects the outer wall of the lower end of the fixed rod 41 to the inner wall of the first groove 421. The winding ring 43 is movably installed at the front of the pushing rod 42. A pushing plate 423 is fixedly installed at the front end of the pushing rod 42. The pushing plate 423 is a… The "bow" shaped structure and the winding rings 43 are all semi-circular ring structures with the same structure. The winding rings 43 are located at the upper and lower ends of the push plate 423. The upper and lower sides of the winding rings 43 are provided with annular grooves 431. The push plate 423 is provided with a locking shaft 432 that slides and engages with the annular grooves 431. The end of the annular surface of the winding ring 43 is provided with a permanent magnet block 433. The end faces of the two winding rings 43 located at the same height and opposite each other are complementary. The middle part of the winding ring 43 is provided with a slot that cooperates with the steel wire 01. The upper end of the push plate 423 is fixedly installed with a guide plate 428. The upper middle part of the guide plate 428 is provided with an inclined surface, and the bottom of the inclined surface points to the slot.

[0042] A second groove 424 is provided at the rear of the push rod 42. A tension rod 425 is slidably installed in the second groove 424. A second spring 426 is connected between the middle of the tension rod 425 and the inner wall of the second groove 424. Pull rings 411 are installed on both the fixed rod 41 and the push rod 42. A toggle rod 412 is slidably installed at the upper end of the fixed rod 41. A pull rope 413 is connected between the toggle rod 412 and the tension rod 425. The middle part of the pull ring 411 on the fixed rod 41 and the push rod 42 slides through the middle part of the pull rod 425. The upper and lower ends of the pull rod 425 are equipped with crossbars 427 through bearings. A torsion spring is connected between the crossbar 427 and the pull rod 425. The end of the crossbar 427 slides against the side wall of the winding ring 43. A half tooth ring 434 is provided in the middle of the annular surface of the winding ring 43. The side wall of the crossbar 427 is provided with meshing teeth that mesh with the half tooth ring 434.

[0043] In specific operation, under initial conditions, the second spring 426 has better resistance to deformation than the first spring 422. At this time, under the elastic push of the first spring 422, the fixing rod 41 is located at the front end of the first slide groove 421. At this time, the slot in the middle of the winding ring 43 is located on the central axis of the hollow cavity inside the fixing part 12, while the tension rod 425 is located at the rear end of the second slide groove 424 under the elastic push of the second spring 426. When the steel wire 01 moves downward under the push of the placement shaft 73, its end directly enters the slot in the middle of the winding ring 43 under the inclined guidance of the guide plate 428. After the steel wire 01 falls, the operator pulls the actuating rod 412 to move it upward on the fixing rod 41, and then pulls the rope. The connecting action of 413 pulls the tension rod 425. At this time, the deformation of the first spring 422 is greater than that of the second spring 426, causing the push rod 42 to gradually move in the direction of the horizontal tension of the pull rope 413. Then, the push rod 42 drives the push plate 423 and the winding ring 43 to move synchronously. The winding ring 43 causes the steel wire 01 on its moving path to bend twice through the slot until the two opposing winding rings 43 are put together. Through the attraction of the permanent magnet block 433, the two winding rings 43 in the put together state can complement each other to form a complete ring. At this time, the two ends of the steel wire 01 are crossed and locked in the slot in the middle of the winding ring 43. After the winding rings 43 are put together, the relative position between the push rod 42 and the fixed rod 41 is also locked.

[0044] Subsequently, as the operator continues to pull the lever 412, the deformation of the second spring 426 increases significantly. At this time, the tension rod 425 gradually slides from the rear end of the second groove 424 to its front end, and during the sliding process, it drives the crossbar 427 to move synchronously. Simultaneously, during the movement of the crossbar 427, the meshing teeth on its side wall mesh with the half-tooth ring 434 on the winding ring 43, causing the winding ring 43 to rotate within the push plate 423. Through the snap-fit ​​engagement between the annular groove 431 and the locking shaft 432, it can provide... The rotation path of the winding ring 43 is limited and guided. During the rotation of the winding ring 43, the steel wires 01 in the cross state are twisted and intertwined synchronously to complete the binding of the steel bars 00. After the steel wires 01 are bound, the lifting action on the lever 412 is released. Then, under the elastic force of the first spring 422 and the second spring 426, the winding frame 4 is reset. Then, the lifting frame 2 is lifted to the next working position by the staff and the above operation is repeated to complete the binding operation of multiple steel bars 00.

[0045] At work,

[0046] Step 1: First, the staff connects the extension part 11 and the fixing part 12 to make the guide rod 1 reach the optimal operating length for the user. After the connection is completed, the connecting part between the extension part 11 and the fixing part 12 is locked by the docking piece 13, thereby locking the overall length of the guide rod 1. Then, the staff cuts the steel wire 01 to be tied into small segments of predetermined length in advance.

[0047] Step 2: The operator holds and lifts the operating rod 71. Under the attraction of the permanent magnet 711, the lifting frame 2 is lifted simultaneously. The operator moves the guide rod 1 and its accessories to the intersection of the rebars 00 to be tied. Then, the operating rod 71 is lowered. The lifting frame 2 moves the plug rod 6 towards the rebar 00. When the plug rod 6 descends to the predetermined height, the lower end of the plug rod 6 passes through the intersection of the rebars 00 to the bottom of the rebar 00. The side walls of the two plug rods 6 abut against the side walls of the two intersecting rebars 00 respectively. During the downward movement of the plug rod 6, the fixing part 12 moves down simultaneously and enters the other two angle positions of the intersection of the rebars 00. At this time, under the four-way limiting and blocking action of the fixing part 12 and the plug rod 6, the positions of the fixing part 12, the plug rod 6 and the rebar 00 are in a relatively locked state.

[0048] Step 3: The staff inserts the pre-cut short steel wire 01 into the annular hole in the middle of the docking plate 13. After entering, the steel wire 01 passes horizontally through the gap between the extension part 11 and the fixing part 12, and comes out from the annular hole in the middle of the docking plate 13 on the other side. Pulling up the operating rod 71 causes the placement shaft 73 to move the middle of the steel wire 01 upward synchronously through the abutment action. Since the two ends of the steel wire 01 are respectively limited and locked by the docking plates 13 on both sides, the middle of the steel wire 01 gradually bends under the upward pushing action of the placement shaft 73. During the bending process, the two ends of the steel wire 01 gradually enter the hollow cavity of the extension part 11 until the steel wire 01 forms an inverted "U" shape.

[0049] Step 4: When the placement shaft 73 moves the bent steel wire 01 upward synchronously, when the spherical block 731 slides to the bending part 51 of the extrusion plate 5, under the push of the compression spring 74, the spherical block 731 slides into the bending part 51. At this time, the two placement shafts 73 in the attached state move away from each other and gradually release the bottom support of the steel wire 01. Then, under the action of gravity, the steel wire 01 slides down along the hollow cavity of the extension part 11 and reaches the position below the placement shaft 73. Then, the cylinder operator presses the operating rod 71 down again. Then, the placement shaft 73 pushes the steel wire 01 downward synchronously, so that its bent part abuts against the upper side wall of the steel bar 00.

[0050] Step 5: After the steel wire 01 has fallen, the staff pulls the lever 412 to move it upward on the fixed rod 41 until the two opposing winding rings 43 are in contact with each other. Through the attraction of the permanent magnet 433, the two winding rings 43 in the contact state can complement each other to form a complete ring. At this time, the two ends of the steel wire 01 are crossed and locked in the groove in the middle of the winding ring 43. After the winding rings 43 are in contact, the relative position between the push rod 42 and the fixed rod 41 is also locked.

[0051] Step 6: As the operator continues to pull the lever 412, the tension rod 425 gradually slides from the rear end of the second slide groove 424 to its front end, and during the sliding process, it drives the crossbar 427 to move synchronously. At the same time, during the movement of the crossbar 427, the meshing teeth on its side wall mesh with the half-tooth ring 434 on the winding ring 43, and the winding ring 43 rotates in the push plate 423. During the rotation of the winding ring 43, the steel wires 01 in the crossed state twist and intertwine synchronously, thereby completing the binding of the steel bars 00. After the steel wires 01 are bound, the pulling action on the lever 412 is released. Then, under the elastic force of the first spring 422 and the second spring 426, the winding frame 4 is reset. Subsequently, the operator lifts the lifting frame 2 to the next working position and repeats the above operation to complete the binding of multiple steel bars 00.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency rebar tying tool for building construction, comprising rebar and steel wire, characterized in that: Guide rods are symmetrically installed above the reinforcing bars, and steel wires are movably installed inside the guide rods; The guide rod is vertically installed at two opposing angles at the intersection of the reinforcing bars. A lifting frame is fixedly installed on the upper part of the guide rod, and a guide frame is fixedly installed in the middle part of the guide rod. Both the lifting frame and the guide frame are rectangular frame structures. A winding frame is movably installed on the lower part of the guide rod. An extrusion plate is installed between the guide frame and the lifting frame. The extrusion plate is parallel to the central axis of the guide rod and is located at two opposing corners of the guide frame. A plug-in rod is fixedly installed on the side of the lifting frame. The plug-in rod is located on both sides of the extrusion plate, and the lower end of the extrusion plate is fixedly connected to the plug-in rod. A mounting frame is slidably installed on the plug-in rod, and the mounting frame includes a mounting shaft. The winding frame includes a fixed rod, a push rod, and winding rings. A fixed rod is fixedly installed at the lower end of the fixed part, with its central axis parallel to the central axis of the guide rod. The push rod is perpendicular to the central axis of the fixed rod. A first groove is formed at the front of the push rod, through which the lower end of the fixed rod slides. A first spring connects the outer wall of the lower end of the fixed rod to the inner wall of the first groove. A winding ring is movably installed at the front of the push rod. A push plate with an "arch"-shaped structure is fixedly installed at the front end of the push rod. Winding rings are located at the upper and lower ends of the push plate. A second groove is formed at the rear of the push rod, within which a tension rod is slidably installed. A second spring connects the middle of the tension rod to the inner wall of the second groove. Pull rings are installed on both the fixed rod and the push rod. A toggle rod is slidably installed at the upper end of the fixed rod. The toggle rod interacts with the pull ring. A pull rope connects the levers, and the middle part of the pull rope slides through the pull rings on the fixed rod and the push rod respectively. The winding rings are all semi-circular ring structures with the same structure. The middle part of the winding ring has a groove that matches the steel wire. A guide plate is fixedly installed on the upper end of the push plate. An inclined surface is provided in the upper middle part of the guide plate, and the bottom of the inclined surface points to the groove. Annular grooves are provided on both the upper and lower sides of the winding ring. A locking shaft is provided on the push plate that slides and engages with the annular groove. A permanent magnet is provided at the end of the annular surface of the winding ring. The end faces of two winding rings located at the same height and opposite each other are complementary. A crossbar is installed at both the upper and lower ends of the pull rod through bearings. A torsion spring is connected between the crossbar and the pull rod, and the end of the crossbar slides against the side wall of the winding ring. A semi-tooth ring is provided in the middle of the annular surface of the winding ring, and meshing teeth that mesh with the semi-tooth ring are provided on the side wall of the crossbar. The second spring has better resistance to deformation than the first spring. The steel wire is formed into an inverted "U" shape. The shaft pushes the steel wire downward, so that the bent part abuts against the upper side wall of the reinforcing bar. Pulling the lever moves it upward on the fixed rod until the two opposing winding rings fit together. The two ends of the steel wire are crossed and locked in the groove in the middle of the winding ring. Continue to pull the lever, and the tension rod gradually slides from the rear end of the second slide to its front end. During the sliding process, it drives the crossbar to move. The meshing teeth on the side wall of the crossbar mesh with the half-tooth ring on the winding ring. The winding ring rotates in the push plate, and the steel wire twists and intertwines.

2. The high-efficiency rebar tying device for building construction according to claim 1, characterized in that: The guide rod has a two-section structure. The upper half of the guide rod is the extension part, and the lower half of the guide rod is the fixed part. A gap is reserved between the extension part and the fixed part to cooperate with the steel wire. The extension part and the fixed part are fixedly connected by a butt joint. The guide frame is located at the junction of the extension part and the fixed part. Hollow cavities that are symmetrically opened in the fixed part and the extension part and are interconnected and slide with the steel wire are provided.

3. The high-efficiency rebar tying device for building construction according to claim 2, characterized in that: The mating plates are located on both sides of the central axis of the guide rod. The middle of the mating plate is provided with an annular hole that slides with the steel wire. Guide plates are symmetrically installed in the hollow cavity of the fixing part and the extension part near the mating plate. The guide plates are "V" shaped and the tip of the guide plate points to the central axis of the guide rod.

4. The high-efficiency rebar tying device for building construction according to claim 1, characterized in that: The mounting frame includes an operating lever, a "U"-shaped plate, and a compression spring. The "U"-shaped plate is installed between the plug-in levers on both sides of the extrusion plate through a sliding fit. A connecting block is fixedly installed in the middle of the "U"-shaped plate. The operating lever has a downward-opening "U"-shaped structure. The lower part of the operating lever is fixedly connected to the connecting block, and the upper part of the operating lever is located inside the lifting frame. Permanent magnets that attract each other are provided at the contact point between the upper part of the operating lever and the lifting frame. The mounting shaft is installed between the "U"-shaped plate and the connecting block through a sliding fit. The middle part of the mounting shaft is connected to the "U"-shaped plate through a compression spring.

5. The high-efficiency rebar tying device for building construction according to claim 4, characterized in that: A spherical block is fixedly provided at the end of the mounting shaft near the extrusion sheet, and the spherical block slides against the side wall of the extrusion sheet. The upper end of the extrusion sheet is provided with a bent part that moves away from the mounting shaft.

6. The high-efficiency rebar tying device for building construction according to claim 5, characterized in that: The mounting shafts are located on both sides of the central axis of the guide rod, and the ends of the two mounting shafts are attached to each other. The attached ends of the mounting shafts are symmetrically equipped with pressing plates, which have a "V" shaped structure and are attached to the steel wire.

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