Steel bar binding device

Abstract

A reinforcing steel bar binding device comprises a shell, a power assembly and a binding assembly, the shell comprises an assembling cavity, the power assembly and the binding assembly are arranged in the assembling cavity, the power assembly comprises a rotating motor and a connecting rod, the binding assembly comprises a binding rod and a rotating rod, one end of the connecting rod is fixedly connected to an output shaft of the rotating motor, and the other end of the connecting rod is fixedly connected to an output shaft of the rotating motor. The rotating rod is arranged on the connecting rod in a matched mode, the rotating motor rotates, the connecting rod drives the rotating rod and the binding rod to rotate slowly, the binding assembly can stretch during rotation, and binding of the steel wire is completed; according to the steel wire binding device, the rotating motor is installed in the shell, the rotating motor drives the connecting rod to drive the rotating rod and the binding rod to rotate slowly, so that steel wires arranged on the binding rod are bound, and during binding, an operator can conveniently bind the steel wires at narrow positions in a narrow space.

Description

Technical Field

[0001] This utility model relates to the technical field of rebar tying, and in particular to a rebar tying device. Background Technology

[0002] In the construction industry, steel bars are like the skeleton of the human body, playing a role in supporting and connecting the building body. Before pouring concrete, a large number of steel bars need to be fixed in sequence according to the engineering drawings so that the steel bar skeleton can be reliably fixed, which is conducive to concrete construction and other preparatory work. After the steel bars are installed, they need to be tied to make their support more stable.

[0003] In actual binding operations, existing binding devices require workers to rotate the handle 3-5 times for each binding knot due to the relatively large number of knots. Furthermore, the length of the steel wire decreases as binding progresses, making it difficult for operators to extend their hands in confined spaces, thus reducing the efficiency of steel binding. Utility Model Content

[0004] In view of the shortcomings and defects of the existing technology, this utility model provides the following technical solution to achieve the purpose of easily completing the binding in a confined space.

[0005] A rebar tying device includes a housing, a power component, and a tying assembly. The housing includes an assembly cavity, and the power component and the tying assembly are disposed within the assembly cavity. The power component includes a rotating motor and a connecting rod. The tying assembly includes a tying rod and a rotating rod. One end of the connecting rod is fixedly connected to the output shaft of the rotating motor, and the other end is fixedly connected to the tying rod. The rotating rod is fitted onto the connecting rod. When the rotating motor rotates, the connecting rod drives the rotating rod and the tying rod to rotate slowly. During rotation, the tying assembly can extend, thus completing the tying of the steel wire.

[0006] Compared with the prior art, this utility model installs a rotating motor inside the outer shell, which drives the connecting rod to rotate the rotating rod and the binding rod slowly, thereby completing the binding of the steel wire set on the binding rod. During binding, the binding rod can extend synchronously with the binding, making it easier for operators to bind the steel wire in narrow spaces, greatly improving work efficiency.

[0007] Furthermore, the binding rod has a bent portion on the side away from the outer casing.

[0008] With the above improvements, a bending part is provided on the side of the binding rod away from the outer shell. The bending part can be used to hook the steel wire, and then the steel wire can be tied to the steel bar by rotation. At the same time, the bending part can be easily detached from the steel wire after the binding is completed, which improves the work efficiency of the operator.

[0009] Furthermore, the rotating rod and the binding rod are integrated, the rotating rod has a mating groove, the connecting rod is inserted into the mating groove, the connecting rod has a sliding block, the mating groove also has a sliding groove, the sliding block is engaged in the sliding groove, the connecting rod rotates, and the rotating rod rotates through the sliding block.

[0010] Through the above improvements, the binding rod and the rotating rod are integrated, allowing them to rotate synchronously. The rotating rod has a mating groove, and the connecting rod has a sliding block that fits into the sliding groove. The end of the rotating rod is inserted into the insertion groove, enabling the rotating rod to rotate synchronously with the binding rod, thus facilitating the binding operation.

[0011] Furthermore, the outer casing is recessed inward toward the rotating rod to form a mounting groove, and a mating ring is fitted inside the mounting groove. A guide block is provided on the inner wall of the mating ring on the side away from the sliding block. The tip of the guide block is fitted inside the assembly cavity. The outer wall of the rotating rod is provided with external threads, and the guide block is fitted inside the gap of the external threads. When the rotating motor rotates, the rotating rod slides relative to the outer casing in the assembly cavity through the guide block, and the rotating rod and the connecting rod are relatively far apart. The sliding block slides in the sliding groove.

[0012] With the above improvements, a mating ring is provided in the mounting groove, and a guide block is provided on the inner wall of the mating ring on the side away from the sliding block. The guide block is engaged with the external thread of the outer wall of the rotating rod, so that the rotating rod can play a guiding role when rotating, and can achieve horizontal displacement of the rotating rod relative to the connecting rod.

[0013] Furthermore, an elastic element is provided between the mating ring and the mounting groove on the side near the sliding block. The mating ring has a protrusion on its outer wall near the sliding block. When the protrusion is pressed, the elastic element is compressed, the guide block moves away from the assembly cavity, the rotating rod retracts, the protrusion is released, the elastic element drives the mating ring to reset, and the guide block is still engaged with the external thread.

[0014] With the above improvements, the mating ring has a protrusion on its outer wall near the sliding block, which facilitates pressing. An elastic element is provided between the mating ring and the mounting groove on the side near the sliding block. After binding is completed, i.e., when the binding assembly extends to its farthest point, pressing the protrusion compresses the elastic element, causing the guide block on the inner wall of the mating ring away from the sliding block to move away from the assembly cavity. In the assembly cavity, the external thread of the rotating rod has no engagement with the guide block, allowing the rotating rod to slide freely within the assembly cavity. At this point, the binding assembly is retracted for easy binding the next time. Subsequently, the pressed protrusion is released, and the elastic element drives the mating ring to reset. The guide block is then repositioned between the external thread and engages with it, ensuring that the rotating rod can only rotate away from the rotating motor within the assembly cavity.

[0015] Furthermore, the outer shell is provided with a mating hole, and a positioning post is installed in the mating hole. The diameter of the upper end of the positioning post is larger than the diameter of the mating hole. The lower end of the positioning post is provided with an inclined surface, which is set towards the rotating motor. A buffer layer is provided on the side of the rotating rod away from the rotating motor. When the buffer layer abuts against the inclined surface, the positioning post moves upward, and at this time the binding assembly reaches the limit position of sliding.

[0016] With the above improvements, the outer shell is provided with mating holes, and a positioning post is installed in the mating holes. The lower end of the positioning post is provided with an inclined surface, and a buffer layer is provided on the side of the rotating rod away from the rotating motor. When the binding assembly reaches the limit position of sliding, the buffer layer will lift the positioning post, which serves as a reminder and prevents the motor from continuing to work when sliding to the limit, thus preventing damage.

[0017] Furthermore, a switch is provided at the upper end of the rotary motor, and a pressing element is provided on the outer casing. A spring is provided between the pressing element and the switch, with both ends of the spring abutting against the pressing element and the switch respectively. When the pressing element is pressed, the spring is compressed, squeezing the switch and driving the rotary motor to rotate. When the pressing element is pressed again, the rotary motor stops rotating.

[0018] With the above improvements, the rotating motor is a three-phase motor. A toggle switch is installed on the upper end of the rotating motor. When the toggle switch is to one end, the rotating motor rotates forward, driving the binding assembly to rotate forward, thereby realizing the binding work. After completion, the toggle switch is reset. Then the toggle switch is rotated to the other end, driving the rotating motor to reverse so that the binding rod is retracted. After retraction, the toggle switch is reset to facilitate the next operation.

[0019] Furthermore, a protective plate is provided on the side of the rotating rod near the rotating motor.

[0020] Through the above improvements, a protective plate is installed on the side of the rotating rod closest to the rotating motor. The protective plate abuts against the outer side of the rotating rod to prevent the rotating rod from being directly exposed to the outside for a long time, thus preventing wear and tear and improving its service life. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of a rebar tying device;

[0022] Figure 2 A top-view structural diagram of a rebar tying device;

[0023] Figure 3 A schematic cross-sectional view of the AA section of a rebar tying device;

[0024] Figure 4 This is an enlarged cross-sectional view of a rebar tying device at point B.

[0025] Figure 5 This is a cross-sectional structural diagram of a rebar tying device at point AA (after the tying rod is extended).

[0026] Figure 6 This is an enlarged cross-sectional view of point C of a rebar tying device.

[0027] The components include: 1. Outer shell; 1.1 Assembly cavity; 1.2 Mounting groove; 1.3 Mating hole; 1.4 Pressing part; 1.5 Spring; 2. Power assembly; 2.1 Rotating motor; 2.11 Switch; 2.2 Connecting rod; 2.21 Sliding block; 3. Binding assembly; 3.1 Binding rod; 3.11 Bending part; 3.12 Limiting block; 3.2 Rotating rod; 3.21 Mating groove; 3.22 Sliding groove; 3.23 External thread; 3.3 Buffer layer; 4. Mating ring; 4.1 Guide block; 4.2 Elastic element; 4.3 Protrusion; 5. Positioning post; 5.1 Inclined surface; 6. Protective plate. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] like Figures 1 to 6 The illustrated rebar tying device includes a housing 1, a power component 2, and a tying component 3. The housing 1 includes an assembly cavity 1.1, and the power component 2 and the tying component 3 are disposed within the assembly cavity 1.1. The power component 2 includes a rotating motor 2.1 and a connecting rod 2.2. The tying component 3 includes a tying rod 3.1 and a rotating rod 3.2. One end of the connecting rod 2.2 is fixedly connected to the output shaft of the rotating motor 2.1, and the other end is fixedly connected to the tying rod 3.1. The rotating rod 3.2 is threadedly connected to the connecting rod 2.2. When the rotating motor 2.1 rotates, the connecting rod 2.2 drives the rotating rod 3.2 and the tying rod 3.1 to rotate slowly, thus completing the tying of the steel wire.

[0031] The outer casing 1 has an assembly cavity 1.1. The rotating motor 2.1, the elastic element 4.2, the rotating rod 3.2, and the binding rod 3.1 are all located in the assembly cavity 1.1, and the rotating motor 2.1, the connecting rod 2.2, the rotating rod 3.2, and the binding rod 3.1 are arranged in a sequential manner, one end to the other.

[0032] A switch 2.11 is installed on the upper end of the rotating motor 2.1, and a pressing part 1.4 is installed on the outer casing 1. A spring 1.5 is installed between the pressing part 1.4 and the switch 2.11. The two ends of the spring 1.5 abut against the pressing part 1.4 and the switch 2.11 respectively. When the pressing part 1.4 is pressed, the spring 1.5 is compressed, which squeezes the switch 2.11 and drives the rotating motor 2.1 to rotate, thereby realizing the binding work. After the binding is completed, the pressing part 1.4 is pressed again, and the rotating motor 2.1 stops rotating. It is quite convenient to use.

[0033] The binding rod 3.1 has a bent part 3.11 on the side away from the outer casing 1. The bent part 3.11 can be used to hook the steel wire, and then the steel wire can be tied to the steel bar by rotation. At the same time, the bent part 3.11 can be easily detached from the steel wire after the binding is completed, which improves the work efficiency of the operator.

[0034] The outer casing 1 is provided with a mating hole 1.3, and a positioning post 5 is installed in the mating hole 1.3. The lower end of the positioning post 5 is provided with an inclined surface 5.1. The upper diameter of the positioning post 5 is larger than the diameter of the mating hole 1.3, so that in the initial state, the inclined surface 5.1 at the lower end of the positioning post 5 can be positioned in the assembly cavity 1.1. A buffer layer 3.3 is provided on the side of the rotating rod 3.2 away from the rotating motor 2.1. The inclined surface 5.1 on the positioning post 5 is oriented in the direction opposite to the rotating motor 2.1. When the binding component 3 slides in the assembly cavity 1.1, when the binding component 3 reaches the limit position of sliding, the buffer layer 3.3 abuts against the inclined surface 5.1 and lifts the inclined surface 5.1 and the positioning post 5, and the positioning post 5 moves upward as a whole, which serves as a prompt and prevents the motor from running idle when it moves to the limit position, thus preventing damage.

[0035] The rotating rod 3.2 and the binding rod 3.1 are integrated. The rotating rod 3.2 has a mating groove 3.21, and the connecting rod 2.2 is inserted into the mating groove 3.21. The connecting rod 2.2 has a sliding block 2.21, and the mating groove 3.21 also has a sliding groove 3.22. The sliding block 2.21 is engaged in the sliding groove 3.22. When the connecting rod 2.2 rotates, it drives the rotating rod 3.2 to rotate through the sliding block 2.21, so that the rotating rod 3.2 can rotate synchronously with the binding rod 3.1, which facilitates the binding operation.

[0036] The outer casing 1 is recessed inward toward the rotating rod 3.2 to form a mounting groove 1.2. A mating ring 4 is provided inside the mounting groove. A guide block 4.1 is provided on the inner wall of the mating ring 4 away from the sliding block 2.21. The tip of the guide block 4.1 is fitted inside the assembly cavity 1.1. The outer wall of the rotating rod 3.2 is provided with an external thread 3.23. The guide block 4.1 is fitted into the gap of the external thread 3.23. When the rotating motor 2.1 rotates, the rotating rod 3.2 slides relative to the outer casing 1 in the assembly cavity 1.1 through the guide block 4.1, and the rotating rod 3.2 and the connecting rod 2.2 are relatively far apart. The sliding block 2.21 slides in the sliding groove 3.22. The mating ring 4 has a protrusion 4.3 on the outer wall near the sliding block 2.21. The protrusion 4.3 can be easily pressed. The mating ring 4 is fitted into the mounting groove 1.2 on the side near the sliding block 2.21. An elastic element 4.2 is set between the two parts. After the binding is completed, that is, when the binding assembly 3 extends to its farthest point, the elastic element 4.2 is pressed by pressing the protrusion 4.3. The guide block 4.1 on the side of the inner wall of the mating ring 4 away from the sliding block 2.21 moves away from the assembly cavity 1.1. In the assembly cavity 1.1, the external thread 3.23 of the rotating rod 3.2 has no engagement with the guide block 4.1. At this time, the rotating rod 3.2 can slide freely in the assembly cavity 1.1. Then the binding assembly 3 is retracted to facilitate the next binding. Then the pressed protrusion 4.3 is released, the elastic element 4.2 drives the mating ring 4 to reset, and the guide block 4.1 is repositioned between the external thread 3.23 and engages with the external thread 3.23, so that the rotating rod 3.2 can only rotate away from the rotating motor 2.1 in the assembly cavity 1.1.

[0037] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A reinforcing bar tying device characterised by: The assembly includes a housing (1), a power component (2), and a binding component (3). The housing (1) includes an assembly cavity (1.1). The power component (2) and the binding component (3) are disposed in the assembly cavity (1.1). The power component (2) includes a rotating motor (2.1) and a connecting rod (2.2). The binding component (3) includes a binding rod (3.1) and a rotating rod (3.2). One end of the connecting rod (2.2) is fixedly connected to the output shaft of the rotating motor (2.1), and the other end is fixedly connected to the binding rod (3.1). The rotating rod (3.2) is fitted onto the connecting rod (2.2). When the rotating motor (2.1) rotates, the connecting rod (2.2) drives the rotating rod (3.2) and the binding rod (3.1) to rotate slowly. During rotation, the binding component (3) can extend, and the steel wire is bound.

2. A reinforcing tying device according to claim 1, characterised in that: The binding rod (3.1) has a bent portion (3.11) on the side away from the outer shell (1).

3. A reinforcing tying device according to claim 1, wherein: The rotating rod (3.2) and the binding rod (3.1) are integrally formed. The rotating rod (3.2) is provided with a mating groove (3.21). The connecting rod (2.2) is inserted into the mating groove (3.21). The connecting rod (2.2) is provided with a sliding block (2.21). The mating groove (3.21) is also provided with a sliding groove (3.22). The sliding block (2.21) is engaged in the sliding groove (3.22). When the connecting rod (2.2) rotates, the rotating rod (3.2) is driven to rotate through the sliding block (2.21).

4. A rebar tying device according to claim 3, characterized in that: The outer shell (1) is recessed inward toward the rotating rod (3.2) to form a mounting groove (1.2). A mating ring (4) is fitted in the mounting groove (1.2). A guide block (4.1) is provided on the inner wall of the mating ring (4) away from the sliding block (2.21). The tip of the guide block (4.1) is fitted in the assembly cavity (1.1). The outer wall of the rotating rod (3.2) is provided with an external thread (3.22). The guide block (4.1) is fitted in the gap of the external thread (3.22). When the rotating motor (2.1) rotates, the rotating rod (3.2) slides relative to the outer shell (1) in the assembly cavity (1.1) through the guide block (4.1). The rotating rod (3.2) and the connecting rod (2.2) are relatively far apart. The sliding block (2.21) slides in the sliding groove (3.22).

5. A reinforcing tying device according to claim 4, wherein: The mating ring (4) has an elastic element (4.2) between it and the mounting groove (1.2) on the side near the sliding block (2.21). The mating ring (4) has a protrusion (4.3) on its outer wall near the sliding block (2.21). When the protrusion (4.3) is pressed, the elastic element (4.2) is compressed, the guide block (4.1) moves away from the assembly cavity (1.1), the rotating rod (3.2) retracts, the protrusion (4.3) is released, the elastic element (4.2) drives the mating ring (4) to reset, and the guide block (4.1) still engages with the external thread (3.22).

6. A rebar tying device according to claim 1, characterized in that: The outer shell (1) is provided with a mating hole (1.3), and a positioning post (5) is installed in the mating hole (1.3). The diameter of the upper end of the positioning post (5) is larger than the diameter of the mating hole (1.3). The lower end of the positioning post (5) is provided with an inclined surface (5.1). The inclined surface (5.1) is set towards the rotating motor (2.1). A buffer layer (3.3) is provided on the side of the rotating rod (3.2) away from the rotating motor (2.1). When the buffer layer (3.3) abuts against the inclined surface (5.1), the positioning post (5) moves upward, and at this time it reaches the limit position of the sliding of the binding assembly (3).

7. A rebar tying device according to claim 1, characterized in that: A switch (2.11) is provided at the upper end of the rotary motor (2.1), and a pressing member (1.4) is provided on the outer casing (1). A spring (1.5) is provided between the pressing member (1.4) and the switch (2.11). The two ends of the spring (1.5) abut against the pressing member (1.4) and the switch (2.11) respectively. When the pressing member (1.4) is pressed, the spring (1.5) is compressed, squeezing the switch (2.11) and driving the rotary motor (2.1) to rotate. When the pressing member (1.4) is pressed again, the rotary motor (2.1) stops rotating.

8. A reinforcing tying device according to claim 1, wherein: A protective plate (6) is provided on the side of the rotating rod (3.2) near the rotating motor (2.1).

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