Device for electrically tightening reinforcing steel bar sleeve

Abstract

The utility model relates to a device for electrically tightening a reinforcing steel bar sleeve. The device comprises a C-shaped handle, a rotating shaft, a connecting frame, a left fixing sleeve for fastening a reinforcing steel bar, a rotating sleeve for fastening the sleeve and a right fixing sleeve for fastening the reinforcing steel bar, the left fixing sleeve is installed on the left nut sleeve, the right fixing sleeve is installed on the right nut sleeve, the rotating sleeve is rotatably installed in the supporting base, the connecting frame is fixedly installed on the handle, and the lower half portions of the left fixing sleeve, the supporting base and the right fixing sleeve are sequentially arranged on the connecting frame from left to right. The left fixing sleeve and the right fixing sleeve can slide on the connecting frame, the supporting seat is fixedly installed on the connecting frame, and the middle of the rotating shaft drives the rotating sleeve to rotate through the transmission assembly. The motor is used for driving the fixing sleeve to advance, exposed screw threads of steel bars on the two sides can be identical, and the tightening efficiency and the qualified rate of the steel bar sleeve are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of civil engineering reinforcing bar construction tools, and particularly relates to a device for electrically tightening reinforcing bar sleeves. BACKGROUND

[0002] For reinforcing bar and mechanical connection sleeve assembly, currently, a person basically uses a torque wrench to tighten, this mode has obvious disadvantages, since two persons are needed to operate when reinforcing bars are connected through mechanical connection sleeves, one person aligns the two reinforcing bars needing to be connected with the mechanical connection sleeve and simply fixes, and the other person needs to use a torque wrench to tighten, this mode needs two persons to cooperate to complete, and cannot guarantee that the exposed threads at the two ends of the mechanical connection sleeve are the same and meet the design requirements, and is time-consuming and laborious. SUMMARY

[0003] In order to solve the above problems, the utility model provides a device for electrically tightening reinforcing bar sleeves, which can continuously and uniformly tighten sleeves, and is operated by a single person, and the technical scheme adopted by the utility model is as follows:

[0004] A device for electrically tightening reinforcing bar sleeves, comprising a C-shaped handle, a rotating shaft, a connecting frame, a left fixing sleeve for tightening reinforcing bars, a rotating sleeve for tightening sleeves and a right fixing sleeve for tightening reinforcing bars, the rotating shaft is installed at the two ends of the handle, the left end of the rotating shaft is connected with a forward rotation speed reducer, the right end is connected with a reverse rotation speed reducer, the left end of the rotating shaft is screwed with a left nut sleeve, the right end is screwed with a right nut sleeve, the thread rotation directions of the left nut sleeve and the right nut sleeve on the rotating shaft are opposite, the left fixing sleeve is installed on the left nut sleeve, the right fixing sleeve is installed on the right nut sleeve, and the rotating sleeve is rotatably installed in the supporting seat.

[0005] The left fixing sleeve, the right fixing sleeve, the supporting seat and the rotating sleeve are all two detachable semicylindrical parts, the upper and lower parts of the left fixing sleeve, the right fixing sleeve and the supporting seat are connected by bolts, and the upper and lower parts of the rotating sleeve are connected by magnetic attraction and gap fit.

[0006] The connecting frame is fixed on the handle, the lower halves of the left fixing sleeve, the supporting seat and the right fixing sleeve are arranged in sequence from left to right on the connecting frame, the left fixing sleeve and the right fixing sleeve are slidable on the connecting frame, the supporting seat is fixed on the connecting frame, and the middle part of the rotating shaft drives the rotating sleeve to rotate through the transmission assembly.

[0007] The device for electrically tightening reinforcing bar sleeves, the transmission assembly is a synchronous belt transmission assembly.

[0008] The utility model has the advantages that:

[0009] 1) Single-person operation of the connection between the rebar and the sleeve saves labor costs. Electric tightening improves work efficiency and speeds up project progress.

[0010] 2) By using a motor to drive the fixed sleeve forward, the exposed threads of the steel bars on both sides can be made the same. The traditional method of using a torsion plate has a low pass rate. Using this device can greatly improve the tightening efficiency and pass rate of the steel bar sleeve. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of the drive shaft according to an embodiment of the present utility model;

[0013] Figure 3 This is a schematic diagram of the support base according to an embodiment of the present utility model.

[0014] In the diagram: 1 is the handle, 2 is the drive shaft, 3 is the left nut sleeve, 4 is the right nut sleeve, 5 is the synchronous belt drive assembly, 6 is the rotating sleeve, 7 is the left column, 8 is the left fixed sleeve, 9 is the right column, 10 is the right fixed sleeve, 11 is the fastening bolt, 12 is the connecting frame, 13 is the support base, 14 is the forward button, 15 is the reverse button, 16 is the forward geared motor, and 17 is the reverse geared motor. Detailed Implementation

[0015] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] This embodiment is an electric tightening device for steel bar sleeves, including a C-shaped handle 1, a rotating shaft 2, a connecting frame 12, a left fixed sleeve 8 for placing steel bars, a rotating sleeve 6 for installing sleeves, and a right fixed sleeve 10 for placing steel bars.

[0017] like Figure 1 As shown, both ends of the rotating shaft 2 are mounted on the handle 1, and combined with... Figure 2 The left end of the rotating shaft 2 is connected to a forward-rotating reduction motor 16, and the right end is connected to a reverse-rotating reduction motor 17. Both the forward-rotating reduction motor 16 and the reverse-rotating reduction motor 17 are located inside the handle 1. The handle 1 is equipped with a forward-rotating button 14 for starting and stopping the forward-rotating reduction motor 16 and a reverse-rotating button 15 for controlling the reverse-rotating reduction motor 17. A left nut sleeve 3 is screwed to the left side of the rotating shaft 2, and a right nut sleeve 4 is screwed to the right side. The threads of the left nut sleeve 3 and the right nut sleeve 4 on the rotating shaft 2 have opposite directions.

[0018] like Figure 3As shown, the left fixing sleeve 8 is composed of two half-cylindrical parts, and is connected by the ear plates and fastening bolts 11. The right fixing sleeve 10 is also composed of two half-cylindrical parts, and is connected by at least one pair of fastening bolts 11. The lower half of the left fixing sleeve 8 is installed on the left nut sleeve 3 through the left vertical column 7, and the lower half of the right fixing sleeve 10 is installed on the right nut sleeve 4 through the right vertical column 9. The power supply of the forward rotation reduction motor 16 and the reverse rotation reduction motor 17 can be integrated with the installation of the battery in the handle 1.

[0019] The connecting frame 12 is in the shape of C, and is fixed on the handle 1. The left fixing sleeve 8 (left vertical column 7), the support seat 13, and the right fixing sleeve 10 (right vertical column 9) are sequentially connected in series on the beam of the connecting frame 12 from left to right. The left fixing sleeve 8 (left vertical column 7) and the right fixing sleeve 10 (right vertical column 9) are slidable on the connecting frame 12. The support seat 13 is also composed of two half-cylindrical parts, and is connected by the ear plates and fastening bolts 11. The support seat 13 is used for installing the rotating sleeve 6, which is rotatable in the support seat 13. The support seat 13 can be made of non-magnetic materials such as aluminum alloy, and the contact surfaces of the two can be coated with lubricating oil. The rotating sleeve 6 is also composed of two half-cylindrical parts, and both the upper half and the lower half have magnetism. The two can be connected by magnetic attraction, which is convenient for disassembly and assembly, and can also magnetically attract the sleeve to avoid sliding during rotation. In order to further fasten the sleeve in the rotating sleeve 6, the two half-cylindrical parts of the rotating sleeve 6 are gap-fitted after the sleeve is sleeved on the rotating sleeve 6. After the rotating sleeve 6 is installed in the support seat 13, the clamping force of the support seat 13 further increases the friction between the rotating sleeve 6 and the sleeve, thereby further avoiding the sliding of the sleeve during rotation.

[0020] The middle part of the rotating shaft 2 is driven and connected to the rotating sleeve 6 through the transmission assembly. Specifically, the transmission assembly is selected from a belt transmission assembly, a chain transmission assembly, or a synchronous belt transmission assembly 5. The synchronous belt pulleys are respectively installed on the rotating sleeve 6 and the middle part of the rotating shaft 2, and the two are connected by a synchronous belt to achieve transmission. The synchronous belt pulley on the rotating sleeve 6 is divided into two half-circular parts and is fixed on the rotating sleeve 6. When the rotating shaft 2 rotates, the sleeve in the rotating sleeve 6 also rotates, and the left nut sleeve 3 and the right nut sleeve 4 can move towards or away from each other, driving the two steel bars in the left fixing sleeve 8 and the right fixing sleeve 10 to move closer to or away from the rotating sleeve 6.

[0021] In use, ① after the sleeve is installed into the rotating sleeve 6, the synchronous belt for transmission is sleeved between the rotating shaft 2 and the rotating sleeve 6, the rotating sleeve 6 is placed into the support base 13 and the fastening bolts 11 are tightened correspondingly, the two steels are installed into the left fixing sleeve 8 and the right fixing sleeve 10 respectively and the fastening bolts 11 are tightened correspondingly, at this time, the two steels are aligned with the sleeve; ② the forward rotation reduction motor 16 is started, the rotating shaft 2 rotates clockwise, the left fixing sleeve 8 and the right fixing sleeve 10 move towards each other and approach the rotating sleeve 6, the rotating sleeve 6 rotates and drives the sleeve to rotate, so that the sleeve is gradually tightened with the two steels; ③ after the tightening is completed, the forward rotation reduction motor 16 is turned off, the fastening bolts 11 on the left fixing sleeve 8 and the right fixing sleeve 10 are unscrewed, the semicylindrical pieces on the upper half of the left fixing sleeve 8 and the right fixing sleeve 10 are disassembled; ④ the reverse rotation reduction motor 17 is started to move the left fixing sleeve 8 and the right fixing sleeve 10 away from the rotating sleeve 6, then the reverse rotation reduction motor 17 is turned off; ⑤ the fastening bolts 11 on the support base 13 are unscrewed, the rotating sleeve 6 is removed and the synchronous belt is disassembled, the rotating sleeve 6 is knocked open by hand or a soft hammer, the completed steel sleeve is obtained, the device is powered off and stopped, and waits for the next use.

Claims

1. An apparatus for electrically tightening a steel reinforcement sleeve, characterised in that: The utility model relates to a reinforcing steel bar fastening device, including handle (1) of C type, pivot (2), connecting frame (12), left fixed sleeve (8) for fastening reinforcing steel bar, rotating sleeve (6) for fastening sleeve and right fixed sleeve (10) for fastening reinforcing steel bar, pivot (2) both ends are installed on handle (1), the left end of pivot (2) is connected with positive rotation speed reducing motor (16), and the right end is connected with reverse rotation speed reducing motor (17), the left part of pivot (2) is screwed with left nut sleeve (3), and the right part is screwed with right nut sleeve (4), and the thread rotation direction of left nut sleeve (3) and right nut sleeve (4) on pivot (2) is opposite, left fixed sleeve (8) is installed in left nut sleeve (3), right fixed sleeve (10) is installed in right nut sleeve (4), and rotating sleeve (6) can be rotatably installed in support base (13); Left fixed sleeve (8), right fixed sleeve (10), support base (13) and rotating sleeve (6) are all two detachable semicylindrical parts, and the upper and lower parts of left fixed sleeve (8), right fixed sleeve (10) and support base (13) are all connected with bolt, and the upper and lower parts of rotating sleeve (6) are connected with magnetic attraction and gap fit; Connecting frame (12) is fixed on handle (1), and the lower half of left fixed sleeve (8), support base (13) and right fixed sleeve (10) are arranged on connecting frame (12) from left to right in proper order, left fixed sleeve (8) and right fixed sleeve (10) are slidable on connecting frame (12), support base (13) is fixed on connecting frame (12), and the middle part of pivot (2) drives rotating sleeve (6) to rotate through transmission assembly.

2. A device for electrically tightening a sleeve according to claim 1, characterized in that: Transmission assembly is synchronous belt transmission assembly (5).

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