A steel bar quick rotation connection device

Abstract

The present invention relates to a mechanical device, and in particular to a steel bar fast rotating connection device. The device comprises a motor (10), a universal shaft (11), and a steel bar grabbing and clamping device (12), wherein the output shaft of the motor (10) is connected to one end of the universal shaft (11), and the other end of the universal shaft (11) is connected to the steel bar grabbing and clamping device (12) via a connecting rod (13). The present invention can quickly connect two steel bars via a threaded sleeve, saving time and effort.

Description

Technical Field

[0001] The invention relates to a mechanical device, in particular to a steel bar quick rotation connection device. Background Art

[0002] The underground continuous wall used for the enclosure structure of municipal engineering is usually more than 30 meters long. The main reinforcement needs to be connected by screwing multiple steel bars through the threaded sleeves at the end. In the past, when connecting manually, three people were required to cooperate with each other to tighten the main reinforcement manually, which was very time-consuming and laborious. In addition, the torque of manual tightening usually cannot meet the specification requirements, affecting the connection quality. Summary of the invention

[0003] The purpose of the present invention is to provide a fast rotating connection device for steel bars, so as to solve the problem that the existing steel bar connection is time-consuming and labor-intensive.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A steel bar fast rotating connection device comprises a motor, a universal shaft and a steel bar grabbing and clamping device, wherein the output shaft of the motor is connected to one end of the universal shaft, and the other end of the universal shaft is connected to the steel bar grabbing and clamping device through a connecting rod.

[0006] To connect two steel bars through a threaded sleeve, fix one of the steel bars, and the steel bar grabbing and clamping device grabs the other steel bar. The motor drives the universal shaft to rotate, and through the transmission of the connecting rod, the steel bar grabbing and clamping device drives the grabbed steel bar to rotate, so that the two steel bars are tightened on the threaded sleeve.

[0007] Preferably, the steel bar grasping and fixing device includes an upper fastener and a lower fastener, the upper fastener is connected to the connecting rod, a groove is provided on the side of the upper fastener, and a convex tooth is provided on the bottom surface; the lower fastener includes a connecting part and a buckling part, the lower end of the connecting part is connected to the buckling part, and the upper end of the connecting part is rotatably connected to the upper fastener through a rotating shaft arranged in the groove, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the upper fastener, and the other end is connected to the connecting part; the buckling part is located below the upper fastener, forming a grasping part with the upper fastener, and the upper surface of the buckling part is provided with teeth matching the convex teeth.

[0008] Rotate the lower fastener to open the upper and lower fasteners, and at the same time, the torsion spring accumulates force. After the steel bars are placed between the upper and lower fasteners, the upper and lower fasteners clamp the steel bars under the action of the torsion spring. The cooperation of the convex teeth and the teeth prevents the steel bars from rotating, thereby realizing the rapid grasping and fixing of the steel bars. When the steel bars are to be removed, just pry open the lower fastener.

[0009] The universal shaft is eccentrically connected to the connecting rod; at the end of the universal shaft connected to the connecting rod, the axis of the end of the universal shaft extends through the engagement formed by the buckling part of the steel bar grabbing and clamping device and the upper buckle. With this structure, when working, the axis of the steel bar grabbed by the steel bar grabbing and clamping device is opposite to the axis of the end of the universal shaft, and the steel bar will only rotate on its own, reducing the degree of its swing and vibration, and reducing damage to the steel bar fast rotation connection device, the steel bar, and the threaded sleeve.

[0010] Preferably, the bottom surface of the upper fastener is in an outward convex arc shape, and the upper surface of the buckling portion is in an inward concave arc shape, so as to better grip the steel bar.

[0011] Preferably, when the upper fastener and the lower fastener are fastened together, a gap is left between the end of the fastened portion away from the connecting portion and the bottom surface of the upper fastener. When in use, the steel bar is placed in the gap between the fastened portion and the bottom surface of the upper fastener to spread the upper and lower fasteners apart, eliminating the operation of turning the lower fastener apart.

[0012] Preferably, a top opening portion is further provided at the front end of the buckling portion away from the connecting portion, and the upper fastener and the lower fastener can be opened when the steel bar hits the top opening portion, so that the steel bar can enter the gap between the buckling portion and the bottom surface of the upper fastener.

[0013] Preferably, the lower buckle is also provided with a handle to facilitate lifting and rotating the lower buckle.

[0014] Preferably, dust-proof bristles are provided at the opening of the groove to prevent dust from entering the groove and affecting the rotation of the shaft.

[0015] Preferably, a bracket is further included, on which a hook is provided. The hook is at the same height as the output shaft of the motor, supports the steel bars, reduces the stress on the steel bars, and facilitates the rotation of the steel bars.

[0016] Compared with the prior art, the present invention can produce at least one of the following beneficial effects: the present invention can quickly connect two steel bars through a threaded sleeve, saving time and effort; the present invention can quickly and firmly grasp and clamp the steel bars, and can quickly remove the steel bars; the present invention is easy to operate; the present invention is provided with dust-proof bristles to prevent dust from entering the groove and affecting the rotation of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the steel bar grabbing and fixing device of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] Figure 1 , Figure 2 The structure of this kind of steel bar quick rotation connection device is shown, and several embodiments are listed below in conjunction with the illustrations.

[0021] Embodiment 1:

[0022] A steel bar rapid rotation connection device comprises a motor 10, a universal shaft 11, and a steel bar grabbing and fixing device 12. The universal shaft 11 adopts a Megilla brand 10G single-section universal shaft. The output shaft of the motor 10 is connected to one end of the universal shaft 11, and the other end of the universal shaft 11 is connected to the steel bar grabbing and fixing device 12 through a connecting rod 13.

[0023] The steel bar gripping and fixing device 12 includes an upper fastener 1 and a lower fastener 2. The upper fastener 1 has a groove 3 on its side, a convex arc-shaped bottom surface and a convex tooth 4. The lower fastener 2 includes a connecting portion 2-1 and a buckling portion 2-2. The lower end of the connecting portion 2-1 is connected to the buckling portion 2-2, and the upper end of the connecting portion 2-1 is rotatably connected to the upper fastener 1 through a rotating shaft 5 arranged in the groove 3. A torsion spring 6 is sleeved on the rotating shaft 5, and one end of the torsion spring 6 is connected to the upper fastener 1, and the other end is connected to the connecting portion 2-1. The buckling portion 2-2 is located below the upper fastener 1 and forms a gripping portion with the upper fastener 1. The upper surface of the buckling portion 2-2 is in an inwardly concave arc shape, and the upper surface of the buckling portion 2-2 is provided with teeth 7 that are compatible with the convex tooth 4.

[0024] To connect two steel bars through a threaded sleeve, one of the steel bars is fixed, and the steel bar grabbing and clamping device 12 grabs the other steel bar. The motor 10 drives the universal shaft 11 to rotate, and through the transmission of the connecting rod 13, the steel bar grabbing and clamping device 12 drives the grabbed steel bar to rotate, so that the two steel bars are screwed tightly to the threaded sleeve. When the steel bar is grabbed and clamped, the lower fastener 2 is rotated to open the upper fastener 1 and the lower fastener 2, and the torsion spring 6 is charged. After the steel bar is placed between the upper fastener 1 and the lower fastener 2, the upper fastener 1 and the lower fastener 2 clamp the steel bar under the action of the torsion spring 6, and the cooperation of the convex teeth 4 and the teeth 7 prevents the steel bar from rotating, thereby realizing the rapid grabbing and clamping of the steel bar, and when the steel bar is to be removed, the lower fastener 2 can be opened.

[0025] Embodiment 2:

[0026] A steel bar fast rotating connection device comprises a motor 10, a universal shaft 11, and a steel bar grabbing and clamping device 12, wherein the output shaft of the motor 10 is connected to one end of the universal shaft 11, and the other end of the universal shaft 11 is connected to the steel bar grabbing and clamping device 12 through a connecting rod 13. The universal shaft 11 is eccentrically connected to the connecting rod 13; at one end of the universal shaft 11 connected to the connecting rod 13, the axis of the end of the universal shaft 11 extends through the grabbing part formed by the buckling part 2-2 of the steel bar grabbing and clamping device 12 and the upper fastener 1.

[0027] The steel bar grabbing and fastening device 12 comprises an upper fastener 1 and a lower fastener 2. The upper fastener 1 has a groove 3 on its side, a convex arc shape on its bottom and a convex tooth 4. The lower fastener 2 comprises a connecting portion 2-1 and a buckling portion 2-2. The lower end of the connecting portion 2-1 is connected to the buckling portion 2-2. The upper end of the connecting portion 2-1 is rotatably connected to the upper fastener 1 through a rotating shaft 5 arranged in the groove 3. A torsion spring 6 is sleeved on the rotating shaft 5. One end of the torsion spring 6 is connected to the upper fastener 1 and the other end is connected to the connecting portion 2-1. The buckling portion 2-2 is located below the upper fastener 1 and forms a grabbing position with the upper fastener 1. The upper surface of the buckling portion 2-2 is concave arc shape. The upper surface of the buckling portion 2-2 is provided with teeth 7 that match the convex tooth 4. When the upper fastener 1 and the lower fastener 2 are buckled, a gap is left between the end of the buckling portion 2-2 away from the connecting portion 2-1 and the bottom surface of the upper fastener 1.

[0028] To connect two steel bars through the threaded sleeve, one of the steel bars is fixed, and the steel bar grabbing and clamping device 12 grabs the other steel bar. The motor 10 drives the universal shaft 11 to rotate, and through the transmission of the connecting rod 13, the steel bar grabbing and clamping device 12 drives the grabbed steel bar to rotate, so that the two steel bars are screwed tightly to the threaded sleeve. When the steel bar is grabbed and clamped, the steel bar is placed in the gap between the buckling part 2-2 and the bottom surface of the upper fastener 1, and the upper fastener 1 and the lower fastener 2 can be spread apart. At the same time, the torsion spring 6 accumulates force to clamp the steel bar, and the cooperation of the convex teeth 4 and the teeth 7 prevents the steel bar from rotating, thereby realizing the rapid grabbing and clamping of the steel bar, and when the steel bar is to be removed, the lower fastener 2 can be opened.

[0029] Embodiment 3:

[0030] A steel bar fast rotating connection device comprises a motor 10, a universal shaft 11, and a steel bar grabbing and clamping device 12, wherein the output shaft of the motor 10 is connected to one end of the universal shaft 11, and the other end of the universal shaft 11 is connected to the steel bar grabbing and clamping device 12 through a connecting rod 13. The universal shaft 11 is eccentrically connected to the connecting rod 13; at one end of the universal shaft 11 connected to the connecting rod 13, the axis of the end of the universal shaft 11 extends through the grabbing part formed by the buckling part 2-2 of the steel bar grabbing and clamping device 12 and the upper fastener 1.

[0031] The steel bar grabbing and fastening device 12 comprises an upper fastener 1 and a lower fastener 2. The upper fastener 1 has a groove 3 on its side, a convex arc shape on its bottom and a convex tooth 4. The lower fastener 2 comprises a connecting portion 2-1 and a buckling portion 2-2. The lower end of the connecting portion 2-1 is connected to the buckling portion 2-2. The upper end of the connecting portion 2-1 is rotatably connected to the upper fastener 1 through a rotating shaft 5 arranged in the groove 3. A torsion spring 6 is sleeved on the rotating shaft 5. One end of the torsion spring 6 is connected to the upper fastener 1 and the other end is connected to the connecting portion 2-1. The buckling portion 2-2 is located below the upper fastener 1 and forms a grabbing position with the upper fastener 1. The upper surface of the buckling portion 2-2 is concave arc shape. The upper surface of the buckling portion 2-2 is provided with teeth 7 that match the convex tooth 4. When the upper fastener 1 and the lower fastener 2 are buckled, a gap is left between the end of the buckling portion 2-2 away from the connecting portion 2-1 and the bottom surface of the upper fastener 1. A top opening portion 2-3 is also provided at the front end of one end of the buckling portion 2-2 away from the connecting portion 2-1.

[0032] To connect two steel bars through a threaded sleeve, one of the steel bars is fixed, and the steel bar grabbing and clamping device 12 grabs the other steel bar. The motor 10 drives the universal shaft 11 to rotate, and through the transmission of the connecting rod 13, the steel bar grabbing and clamping device 12 drives the grabbed steel bar to rotate, so that the two steel bars are screwed tightly to the threaded sleeve. When the steel bar is grabbed and clamped, the upper fastener 1 and the lower fastener 2 can be opened by hitting the top opening part 2-3 with the steel bar, so that the steel bar can enter the gap between the buckling part 2-2 and the bottom surface of the upper fastener 1, and the upper fastener 1 and the lower fastener 2 can be opened. At the same time, the torsion spring 6 accumulates force to clamp the steel bar, and the cooperation of the convex teeth 4 and the teeth 7 prevents the steel bar from rotating, thereby realizing the rapid grabbing and clamping of the steel bar, and when the steel bar is to be removed, the lower fastener 2 can be broken open.

[0033] Embodiment 4:

[0034] A steel bar fast rotating connection device comprises a motor 10, a universal shaft 11, and a steel bar grabbing and clamping device 12, wherein the output shaft of the motor 10 is connected to one end of the universal shaft 11, and the other end of the universal shaft 11 is connected to the steel bar grabbing and clamping device 12 through a connecting rod 13. The universal shaft 11 is eccentrically connected to the connecting rod 13; at one end of the universal shaft 11 connected to the connecting rod 13, the axis of the end of the universal shaft 11 extends through the grabbing part formed by the buckling part 2-2 of the steel bar grabbing and clamping device 12 and the upper fastener 1.

[0035] The steel bar gripping and fixing device 12 includes an upper fastener 1 and a lower fastener 2. The upper fastener 1 has a groove 3 on its side, a convex arc on its bottom and a convex tooth 4. The lower fastener 2 is also provided with a handle 8. The lower fastener 2 includes a connecting portion 2-1 and a buckling portion 2-2. The lower end of the connecting portion 2-1 is connected to the buckling portion 2-2, and the upper end of the connecting portion 2-1 is rotatably connected to the upper fastener 1 through a rotating shaft 5 arranged in the groove 3. A torsion spring 6 is sleeved on the rotating shaft 5. One end of the torsion spring 6 is connected to the upper fastener 1, and the other end is connected to the connecting portion 2-1. The buckling portion 2-2 is located below the upper fastener 1 and forms a gripping portion with the upper fastener 1. The upper surface of the buckling portion 2-2 is in a concave arc, and the upper surface of the buckling portion 2-2 is provided with teeth 7 that match the convex tooth 4.

[0036] To connect two steel bars through a threaded sleeve, one of the steel bars is fixed, and the steel bar grabbing and clamping device 12 grabs the other steel bar. The motor 10 drives the universal shaft 11 to rotate, and through the transmission of the connecting rod 13, the steel bar grabbing and clamping device 12 drives the grabbed steel bar to rotate, so that the two steel bars are screwed tightly to the threaded sleeve. When the steel bar is grabbed and clamped, the handle 8 is lifted, and the lower fastener 2 is rotated to open the upper fastener 1 and the lower fastener 2. At the same time, the torsion spring 6 accumulates force. After the steel bar is placed between the upper fastener 1 and the lower fastener 2, the upper fastener 1 and the lower fastener 2 clamp the steel bar under the action of the torsion spring 6. The cooperation of the convex teeth 4 and the teeth 7 prevents the steel bar from rotating, thereby realizing the rapid grabbing and clamping of the steel bar. When the steel bar is to be removed, the lower fastener 2 can be opened.

[0037] Best embodiment:

[0038] A steel bar fast rotating connection device comprises a motor 10, a universal shaft 11, a steel bar grabbing and fastening device 12, and a bracket 14. The output shaft of the motor 10 is connected to one end of the universal shaft 11, and the other end of the universal shaft 11 is connected to the steel bar grabbing and fastening device 12 through a connecting rod 13. The universal shaft 11 is eccentrically connected to the connecting rod 13; at the end of the universal shaft 11 connected to the connecting rod 13, the axis of the end of the universal shaft 11 extends through the grabbing part formed by the buckling part 2-2 of the steel bar grabbing and fastening device 12 and the upper fastener 1. The bracket 14 is provided with a hook 15, and the hook 15 is at the same height as the output shaft of the motor 10.

[0039] The steel bar gripping and fixing device 12 includes an upper fastener 1 and a lower fastener 2. A groove 3 is provided on the side of the upper fastener 1. A dust-proof brush 10 is arranged at the opening of the groove 3. The bottom surface of the upper fastener 1 is in an outward convex arc shape and is provided with convex teeth 4; the lower fastener 2 includes a connecting portion 2-1 and a buckling portion 2-2. The lower end of the connecting portion 2-1 is connected to the buckling portion 2-2. The upper end of the connecting portion 2-1 is rotatably connected to the upper fastener 1 through a rotating shaft 5 arranged in the groove 3. A torsion spring 6 is sleeved on the rotating shaft 5. One end of the torsion spring 6 is connected to the upper fastener 1, and the other end is connected to the connecting portion 2-1; the buckling portion 2-2 is located below the upper fastener 1 and forms a gripping portion with the upper fastener 1. The upper surface of the buckling portion 2-2 is in an inward concave arc shape, and the upper surface of the buckling portion 2-2 is provided with teeth 7 that are compatible with the convex teeth 4. When the upper fastener 1 and the lower fastener 2 are fastened together, a gap is left between the end of the fastening portion 2-2 away from the connecting portion 2-1 and the bottom surface of the upper fastener 1. The front end of the fastening portion 2-2 away from the connecting portion 2-1 is also provided with a top opening portion 2-3.

[0040] To connect two steel bars through a threaded sleeve, one of the steel bars is fixed, and the other steel bar is placed on the hook 15, and the steel bar is grabbed by the steel bar grabbing and clamping device 12, and the motor 10 drives the universal shaft 11 to rotate, and through the transmission of the connecting rod 13, the steel bar grabbing and clamping device 12 drives the grabbed steel bar to rotate, so that the two steel bars are screwed tightly to the threaded sleeve. When the steel bar is grabbed and clamped, the upper fastener 1 and the lower fastener 2 can be opened by hitting the top opening part 2-3 with the steel bar, so that the steel bar can enter the gap between the buckling part 2-2 and the bottom surface of the upper fastener 1, and the upper fastener 1 and the lower fastener 2 can be opened, and at the same time, the torsion spring 6 accumulates force to clamp the steel bar, and the cooperation of the convex teeth 4 and the teeth 7 prevents the steel bar from rotating, thereby realizing the rapid grabbing and clamping of the steel bar, and when the steel bar is to be removed, the lower fastener 2 can be opened.

[0041] When multiple illustrative embodiments are mentioned in this specification, it means that the specific structure described in conjunction with the embodiment is included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when a structure is described in conjunction with any embodiment, it is claimed that the structure is implemented in conjunction with other embodiments within the scope of the present invention.

Claims

1. A steel bar quick rotation connection device, characterized in that: The invention comprises a motor (10), a universal shaft (11), and a steel bar grabbing and fixing device (12), wherein the output shaft of the motor (10) is connected to one end of the universal shaft (11), and the other end of the universal shaft (11) is connected to the steel bar grabbing and fixing device (12) via a connecting rod (13); the steel bar grabbing and fixing device (12) comprises an upper fastener (1) and a lower fastener (2), wherein the upper fastener (1) is connected to the connecting rod (13), a groove (3) is provided on the side of the upper fastener (1), and a convex tooth (4) is provided on the bottom surface; the lower fastener (2) comprises a connecting portion (2-1) and a buckling portion (2-2), wherein the lower end of the connecting portion (2-1) is connected to the buckling portion (2-2), and the upper end of the connecting portion (2-1) is provided in the groove. The rotating shaft (5) in the (3) is rotatably connected to the upper fastener (1), and a torsion spring (6) is sleeved on the rotating shaft (5), one end of the torsion spring (6) is connected to the upper fastener (1), and the other end is connected to the connecting portion (2-1); the locking portion (2-2) is located below the upper fastener (1) and forms a gripping portion with the upper fastener (1), and the upper surface of the locking portion (2-2) is provided with teeth (7) that match the convex teeth (4); the universal shaft (11) is eccentrically connected to the connecting rod (13); at the end of the universal shaft (11) connected to the connecting rod (13), the axis of the end of the universal shaft (11) extends through the gripping portion formed by the locking portion (2-2) of the steel bar gripping and fixing device (12) and the upper fastener (1); When working, the axis of the steel bar grabbed by the steel bar grabbing and clamping device is opposite to the axis of the end of the universal shaft, and the steel bar will only rotate on its own, reducing the degree of its swing and vibration; It also comprises a bracket (14), on which a hook (15) is arranged, and the hook (15) is at the same height as the output shaft of the motor (10).

2. A steel bar quick rotation connection device according to claim 1, characterized in that: The bottom surface of the upper fastener (1) is in an outwardly convex arc shape, and the upper surface of the buckling portion (2-2) is in an inwardly concave arc shape.

3. A steel bar quick rotation connection device according to claim 1, characterized in that: When the upper fastener (1) and the lower fastener (2) are fastened together, a gap is left between an end of the fastened portion (2-2) away from the connecting portion (2-1) and the bottom surface of the upper fastener (1).

4. A steel bar quick rotation connection device according to claim 3, characterized in that: A top opening portion (2-3) is also provided at the front end of one end of the buckling portion (2-2) away from the connecting portion (2-1).

5. A steel bar quick rotation connection device according to claim 1, characterized in that: The lower buckle (2) is also provided with a handle (8).

6. A steel bar quick rotation connection device according to claim 1, characterized in that: Dust-proof brush bristles are arranged at the opening of the groove (3).

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