阅读说明：本技术 电动扳手及电动扳手装置 (Electric wrench and electric wrench device ) 是由 吴年潮 王成 武群山 陈晓东 涂瑞荣 于 2021-07-12 设计创作，主要内容包括：本发明提供了一种电动扳手及电动扳手装置。电动扳手包括：壳体、控制器、检测装置、输入装置和夹持装置；输入装置设置于壳体的外壁,用于接收拧紧指令；夹持装置可转动地设置于壳体,用于夹紧钢筋套筒；控制器设置于壳体内且与输入装置和夹持装置均电性连接,用于接收拧紧指令,并根据拧紧指令控制夹持装置转动,以带动钢筋套筒转动进而与钢筋相拧紧；检测装置设置于壳体内且与夹持装置相连接,用于检测夹持装置的转动程度；控制器还与检测装置电性连接,用于根据转动程度确定钢筋套筒与钢筋是否拧紧,并在拧紧后控制夹持装置停止转动。本发明可实现钢筋套筒与钢筋自动拧紧,不仅能准确控制拧紧程度,保证连接质量,还能节约安装时间,省时省力。(The invention provides an electric wrench and an electric wrench device. The electric wrench comprises: the device comprises a shell, a controller, a detection device, an input device and a clamping device; the input device is arranged on the outer wall of the shell and used for receiving a tightening command; the clamping device is rotatably arranged on the shell and used for clamping the steel bar sleeve; the controller is arranged in the shell, electrically connected with the input device and the clamping device, and used for receiving a tightening instruction and controlling the clamping device to rotate according to the tightening instruction so as to drive the steel bar sleeve to rotate and further tighten the steel bar; the detection device is arranged in the shell, is connected with the clamping device and is used for detecting the rotation degree of the clamping device; the controller is further electrically connected with the detection device and used for determining whether the steel bar sleeve and the steel bar are screwed down according to the rotation degree and controlling the clamping device to stop rotating after the steel bar sleeve and the steel bar are screwed down. The automatic screwing device can realize automatic screwing of the steel bar sleeve and the steel bar, can accurately control the screwing degree, ensures the connection quality, and can save the installation time and labor.)

1. An electric wrench, comprising: the device comprises a shell (1), a controller (2), a detection device (3), an input device (4) and a clamping device (5); wherein the content of the first and second substances,

the input device (4) is arranged on the outer wall of the shell (1) and used for receiving a tightening command;

the clamping device (5) is rotatably arranged on the shell (1) and is used for clamping the steel bar sleeve;

the controller (2) is arranged in the shell (1), is electrically connected with the input device (4) and the clamping device (5), and is used for receiving the tightening instruction and controlling the clamping device (5) to rotate according to the tightening instruction so as to drive the steel bar sleeve to rotate and further tighten the steel bar;

the detection device (3) is arranged in the shell (1), is connected with the clamping device (5) and is used for detecting the rotation degree of the clamping device (5);

the controller (2) is electrically connected with the detection device (3) and is further used for determining whether the steel bar sleeve and the steel bar are screwed down according to the rotation degree and controlling the clamping device (5) to stop rotating after the steel bar sleeve and the steel bar are screwed down.

2. Electric wrench according to claim 1, characterized in that said gripping means (5) comprise: the driving motor (51) is arranged in the shell (1), the transmission piece (52) is arranged outside the shell (1), and the clamping mechanism (53) is used for clamping the reinforcing steel bar sleeve; wherein the content of the first and second substances,

the driving shaft of the driving motor (51) penetrates through the shell (1) and is connected with the transmission piece (52), and the transmission piece (52) is connected with the clamping mechanism (53);

the control end of the driving motor (51) is electrically connected with the controller (2) and is used for driving the transmission piece (52) to rotate under the control of the controller (2) so as to drive the clamping mechanism (53) to rotate;

the detection device (3) is connected with the transmission piece (52) and is used for detecting the rotation degree of the transmission piece (52).

3. Electric wrench according to claim 2, characterized in that said clamping mechanism (53) comprises: a first arc-shaped body (531), a second arc-shaped body (532) and at least three clamping pieces (533); wherein the content of the first and second substances,

the first arc-shaped body (531) and the second arc-shaped body (532) are relatively detachably connected to form an annular structure, and the annular structure is connected with the transmission piece (52);

the first end of each clamping piece (533) is detachably connected with the annular structure, and the second end of each clamping piece (533) is used for clamping the steel bar sleeve.

4. The power wrench as claimed in claim 3, wherein the end face of the second end of each clamping member (533) is provided with an engagement tooth (534).

5. Electric wrench according to claim 3, characterised in that said clamping mechanism (53) further comprises: a first arcuate housing (535) and a second arcuate housing (536); wherein the content of the first and second substances,

the first arc-shaped shell (535) and the second arc-shaped shell (536) are hollow inside and U-shaped in cross section, and the first arc-shaped shell (535) and the second arc-shaped shell (536) are detachably connected oppositely to form a ring-shaped shell;

the ring structure is rotatably disposed at the open end of the housing;

the transmission piece (52) is arranged in the shell and is arranged at the lower part of the annular structure.

6. The power wrench as claimed in claim 5, wherein the first end of the first arc housing (535) is rotatably coupled to the first end of the second arc housing (536), and the second end of the first arc housing (535) is locked to the second end of the second arc housing (536) by a locking element.

7. The electric wrench of claim 2,

the detection device (3) is a torsion sensor and is used for detecting the torsion of the transmission part;

the controller (2) is used for determining that the steel bar sleeve is screwed with the steel bar when the torsion reaches a preset torsion.

8. The electric wrench as claimed in claim 1,

the input device (4) is also used for inputting a relaxation instruction;

the controller (2) is also used for receiving the loosening instruction and controlling the clamping device (5) to rotate reversely according to the loosening instruction so as to drive the steel bar sleeve to rotate and further separate from the steel bar.

9. An electric wrench device, comprising: a connection piece (6) and two electric wrenches according to any one of claims 1 to 8; wherein the content of the first and second substances,

the two ends of the connecting piece (6) are detachably connected with the shell (1) of the two electric wrenches respectively.

10. Electric wrench device according to claim 9, in which the coupling member (6) comprises: a flexible cylinder (61) and a spring (62); wherein the content of the first and second substances,

the spring (62) is arranged in the cylinder body (61);

each end of the barrel (61) is provided with a protruding part (611), and each protruding part (611) is provided with a clamping groove (612);

every casing (1) all is provided with fastener (63), two fastener (63) and two fastener groove (612) looks joint one-to-one.

Technical Field

The invention relates to the technical field of wrenches, in particular to an electric wrench and an electric wrench device.

Background

In recent years, with the rapid development of the building industry, more and more urban bridges are used. Generally, the length of the bridge engineering pile is relatively long, which requires a reinforcement cage with a relatively long length. The installation time is particularly important when the steel reinforcement cage is installed, because the installation time has certain influence on the thickness of the sediment after the pile foundation is formed into a hole and whether the hole collapses or not. However, the existing pile foundation reinforcement cage adopts the straight thread steel bar sleeve mechanical connection to replace the welding construction, although the mechanical connection can save some installation time, the installation time is still long, and the installation quality can not be well guaranteed.

Disclosure of Invention

In view of the above, the invention provides an electric wrench, and aims to solve the problems that in the prior art, when a straight-thread steel bar sleeve is mechanically connected with a pile foundation steel bar cage, the installation time is long and the installation quality cannot be guaranteed. The invention also provides an electric wrench device with the electric wrench.

In one aspect, the present invention provides an electric wrench, including: the device comprises a shell, a controller, a detection device, an input device and a clamping device; the input device is arranged on the outer wall of the shell and used for receiving a tightening command; the clamping device is rotatably arranged on the shell and used for clamping the steel bar sleeve; the controller is arranged in the shell, electrically connected with the input device and the clamping device, and used for receiving a tightening instruction and controlling the clamping device to rotate according to the tightening instruction so as to drive the steel bar sleeve to rotate and further tighten the steel bar; the detection device is arranged in the shell, is connected with the clamping device and is used for detecting the rotation degree of the clamping device; the controller is further electrically connected with the detection device and is used for determining whether the steel bar sleeve and the steel bar are screwed down according to the rotation degree and controlling the clamping device to stop rotating after the steel bar sleeve and the steel bar are screwed down.

Further, in the above electric wrench, the clamping device includes: the driving motor is arranged in the shell, the transmission part is arranged outside the shell, and the clamping mechanism is used for clamping the steel bar sleeve; wherein, the driving shaft of the driving motor is arranged in the shell in a penetrating way and is connected with the transmission piece, and the transmission piece is connected with the clamping mechanism; the control end of the driving motor is electrically connected with the controller and is used for driving the transmission piece to rotate under the control of the controller so as to drive the clamping mechanism to rotate; the detection device is connected with the transmission member and used for detecting the rotation degree of the transmission member.

Further, in the above electric wrench, the clamping mechanism includes: the clamping device comprises a first arc-shaped body, a second arc-shaped body and at least three clamping pieces; the first arc-shaped body and the second arc-shaped body are detachably connected relatively to form an annular structure, and the annular structure is connected with the transmission piece; the first end of every holder all can dismantle with loop configuration and be connected, and the second end of every holder all is used for pressing from both sides tight steel bar sleeve.

Further, in the electric wrench, an end surface of the second end of each clamping member is provided with engaging teeth.

Further, in the electric wrench, the clamping mechanism further includes: a first arcuate housing and a second arcuate housing; the first arc-shaped shell and the second arc-shaped shell are hollow, the cross sections of the first arc-shaped shell and the second arc-shaped shell are U-shaped, and the first arc-shaped shell and the second arc-shaped shell are detachably connected relatively to form an annular shell; the annular structure is rotatably arranged at the open end of the shell; the transmission part is arranged in the shell and is arranged at the lower part of the annular structure.

Further, in the electric wrench, the first end of the first arc-shaped housing is rotatably connected with the first end of the second arc-shaped housing, and the second end of the first arc-shaped housing is locked with the second end of the second arc-shaped housing by the locking element.

Further, in the electric wrench, the detecting device is a torque sensor for detecting the torque of the transmission member; the controller is used for determining that the steel bar sleeve is screwed with the steel bar when the torsion reaches the preset torsion.

Further, in the electric wrench, the input device is further configured to input a loosening instruction; the controller is also used for receiving the loosening instruction and controlling the clamping device to rotate reversely according to the loosening instruction so as to drive the steel bar sleeve to rotate and further separate from the steel bar.

According to the invention, the controller controls the clamping device to rotate according to the tightening instruction received by the input device to drive the steel bar sleeve to rotate, so that the steel bar sleeve and the steel bar are tightened, the controller also determines whether the steel bar sleeve and the steel bar are tightened according to the rotation degree of the clamping device, the clamping device is controlled to stop rotating after the steel bar sleeve and the steel bar are tightened, manual operation is not needed, the steel bar sleeve and the steel bar can be tightened only through input of the input device 4, the tightening degree can be accurately controlled, the connection quality between the steel bar sleeve and the steel bar is ensured, the installation time can be saved, time and labor are saved, the operation is simple, and the problems that the installation time is long and the installation quality cannot be ensured when the straight-thread steel bar sleeve is mechanically connected with the pile foundation steel bar cage in the prior art are solved.

In another aspect, the present invention further provides an electric wrench apparatus, including: a connector and two electric wrenches of any one of the above; wherein, the both ends of connecting piece can be dismantled with the casing among two electric spanner respectively and be connected.

Further, in the electric wrench apparatus, the coupling member includes: a flexible barrel and spring; wherein, the spring is arranged in the cylinder body; each end of the barrel is provided with a convex part, and each convex part is provided with a clamping groove; each shell is provided with a clamping piece, and the two clamping pieces are clamped with the two clamping grooves in a one-to-one corresponding mode.

In the invention, each electric wrench does not need manual operation, not only can the screwing degree be accurately controlled, the connection quality between the steel bar sleeve and the steel bar is ensured, but also the installation time is saved, time and labor are saved, the operation is simple, in addition, the two electric wrenches are connected through the connecting piece, the two electric wrenches can work simultaneously, the screwing construction of the two steel bar sleeves with different intervals is realized, the construction speed is improved, and the installation time is saved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural diagram of an electric wrench according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a clamping mechanism of the electric wrench according to the embodiment of the present invention;

fig. 3 is a schematic structural view of a first arc-shaped body of the electric wrench according to the embodiment of the present invention;

fig. 4 is a rear view of the electric wrench according to the embodiment of the present invention, illustrating a first arc-shaped body;

FIG. 5 is a schematic cross-sectional view of a ring structure of the electric wrench according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a housing of the electric wrench according to the embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a clamping mechanism of an electric wrench according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an electric wrench device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a connecting member in the electric wrench device according to the embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Embodiment of the electric wrench:

referring to fig. 1, fig. 1 is a schematic structural diagram of an electric wrench according to an embodiment of the present invention. As shown, the electric wrench includes: the device comprises a shell 1, a controller 2, a detection device 3, an input device 4 and a clamping device 5. Wherein, the inside of the case 1 is hollow, and both ends of the case 1 are closed ends. An input device 4 is provided on an outer wall of the housing 1, the input device 4 being configured to receive a tightening command. In particular, the input device 4 may be a switch, which the user presses, i.e. inputs a tightening command.

The clamping device 5 is rotatably disposed on the housing 1, specifically, the clamping device 5 can be disposed at an end of the housing 1, and the clamping device 5 is used for clamping the steel bar sleeve.

The controller 2 is disposed inside the housing 1, the controller 2 is electrically connected to the input device 4 and the clamping device 5, the controller 2 is configured to receive a tightening command sent by the input device 4, and control the clamping device 5 to rotate according to the tightening command, so that the clamping device 5 rotates to drive the steel bar sleeve to rotate, and the steel bar sleeve and the steel bar are tightened.

The detection device 3 is arranged inside the shell 1, the detection device 3 is connected with the clamping device 5, and the detection device 3 is used for detecting the rotation degree of the clamping device 5. The controller 2 is also electrically connected with the detection device 3, and the controller 2 is also used for receiving the rotation degree of the clamping device 5 detected by the detection device 3, determining whether the reinforcing steel bar sleeve and the reinforcing steel bar are screwed up according to the rotation degree, and controlling the clamping device 5 to stop rotating after the determination of the screwing up.

Preferably, the input device 4 is further configured to input a release instruction, and the controller 2 is further configured to receive the release instruction, and control the clamping device 5 to rotate in the reverse direction according to the release instruction, so that the reverse rotation of the clamping device 5 drives the reinforcing steel bar sleeve to rotate, so that the reinforcing steel bar sleeve is separated from the reinforcing steel bar.

In an implementation, the number of the input devices 4 may be two, wherein one input device 4 is used for inputting a tightening command, and the other input device 4 is used for inputting a loosening command. In specific implementation, an on switch and an off switch may be further disposed on the outer wall of the housing 1, and the on switch controls the rotation and stop of the clamping device 5.

During specific implementation, a power supply can be further arranged in the shell 1, and the power supply is electrically connected with the input device 4, the controller 2, the detection device 3 and the clamping device 5 and is used for supplying power to all the parts. The power supply can guarantee continuous work of the electric wrench for the detachable rechargeable battery, can effectively avoid the damage of a direct current power supply to a human body, and has certain safety and stability.

In specific implementation, the controller 2 may also be configured to control the power supply to stop supplying power after the tightening is determined, so as to implement a function of power-off during tightening.

It can be seen that, in this embodiment, controller 2 rotates according to the tightening instruction control clamping device 5 that input device 4 received, drive the steel bar sleeve and rotate, make steel bar sleeve and reinforcing bar screw up mutually, whether controller 2 still confirms steel bar sleeve and reinforcing bar according to clamping device 5's rotation degree and screw up, control clamping device 5 stall after screwing up, accomplish steel bar sleeve and reinforcing bar and screw up promptly, need not manual operation, only need can realize steel bar sleeve and reinforcing bar screw up through input device 4's input, not only can accurate control screw up the degree, guarantee the connection quality between steel bar sleeve and the reinforcing bar, can also practice thrift installation time, time saving and labor saving, and the operation is simple, the problem of the long and unable installation quality of guaranteeing of installation time that easily leads to of straight thread steel bar sleeve mechanical connection pile foundation steel reinforcement cage among the prior art is solved.

Referring to fig. 1, in the above embodiment, the holding device 5 may include: a drive motor 51, a transmission 52 and a gripping mechanism 53. The driving motor 51 is disposed inside the housing 1, and the transmission member 52 and the clamping mechanism 53 are disposed outside the housing 1. The driving shaft of the driving motor 51 penetrates through the casing 1, the driving shaft of the driving motor 51 is connected with the transmission piece 52, the transmission piece 52 is connected with the clamping mechanism 53, and the clamping mechanism 53 is used for clamping the reinforcing steel bar sleeve.

The control end of the driving motor 51 is electrically connected to the controller 2, and the driving motor 51 is used for driving the transmission member 52 to rotate under the control of the controller 2, so as to drive the clamping mechanism 53 to rotate.

The detection device 3 is connected with the transmission member 52, and the detection mechanism is used for detecting the rotation degree of the transmission member 52. Preferably, the detecting device 3 is a torsion sensor for detecting the torsion of the transmission member 52. The controller 2 is further configured to determine that the sleeve is screwed with the reinforcing steel bar when the detected torque reaches a preset torque. In specific implementation, the preset torque may be determined according to actual conditions, and this embodiment does not limit this.

Referring to fig. 2 to 5, in the above embodiment, the clamping mechanism 53 may include: a first arcuate body 531, a second arcuate body 532, and at least three clamps 533. The first arc-shaped body 531 and the second arc-shaped body 532 are detachably connected with each other, so that the first arc-shaped body 531 and the second arc-shaped body 532 are connected with each other to form an annular structure, the annular structure is connected with the transmission member 52, and the transmission member 52 drives the annular structure to rotate.

Preferably, the transmission member 52 is a transmission gear, and the bottom of the annular structure is provided with gears, that is, the bottom surface of the first arc-shaped body 531 and the bottom surface of the second arc-shaped body 532 are both provided with gears, and the gears on the annular structure are engaged with the transmission gear, so that the transmission gear drives the annular structure to rotate under the driving of the driving motor 51.

The first end of each clamping member 533 is detachably connected to the annular structure, the second end of each clamping member 533 is a free end, and the second end of each clamping member 533 is used for clamping the steel bar sleeve. Specifically, each clamping member 533 is disposed at an inner peripheral wall of the annular structure, and a second end of each clamping member 533 extends toward a center of the annular structure, so that the three clamping members 533 cooperate to clamp the sleeve of reinforcing bars.

Preferably, the clamping members 533 are uniformly distributed along the inner circumference of the ring structure, and then the clamping members 533 are disposed on the inner circumferential wall of the first arc-shaped body 531 or the inner circumferential wall of the second arc-shaped body 532 according to practical situations.

More preferably, the end surface of the second end of each clamping member 533 is provided with an engaging tooth 534, and the engaging tooth 534 is in contact with the steel bar sleeve, so as to improve the clamping effect on the steel bar sleeve.

In specific implementation, the inner portions of the first arc-shaped body 531 and the second arc-shaped body 532 are both hollow, that is, the inner portion of the ring-shaped structure is hollow. The first end of every holder 533 is all worn to locate the loop configuration and the inside of loop configuration is arranged in to the part, and first screw hole has all been seted up to the tip that the first end in the loop configuration was arranged in to every holder 533, and the second screw hole has all been seted up at the position department corresponding to every holder 533 at the top of loop configuration, and reinforcement screw 57 wears to locate second screw hole and first screw hole in proper order and with second screw hole and first screw hole homogeneous phase spiro union, has realized the dismantlement between every holder 533 and the loop configuration promptly and has been connected. Thus, the number of the reinforcing screws 57 is the same as the number of the clamping members 533, and one clamping member 533 corresponds to one reinforcing screw 57.

It can be seen that, in this embodiment, driving motor 51 drives driving medium 52 and rotates under the control of controller 2, and then drives the loop configuration and rotate, and each holder 533 presss from both sides tight the steel bar sleeve, make steel bar sleeve and loop configuration relatively fixed, can drive the steel bar sleeve when the loop configuration rotates like this and rotate, moreover, each holder 533 can be dismantled with the loop configuration and be connected, can change not unidimensional holder 533 according to the telescopic diameter of steel bar, guarantee that the steel bar sleeve is stably pressed from both sides tightly by each holder 533, the commonality of electric wrench has been realized.

Referring to fig. 2 to 7, in the above embodiment, the clamping mechanism 53 may further include: a first arcuate housing 535 and a second arcuate housing 536. The first arc-shaped shell 535 is hollow and has a U-shaped cross section. The second arcuate housing 536 is hollow in its interior and also U-shaped in cross-section. The first arc-shaped housing 535 is detachably connected to the second arc-shaped housing 536, so that the first arc-shaped housing 535 and the second arc-shaped housing 536 form a ring-shaped hollow housing after being butted.

The ring-shaped structure is rotatably provided at the open end of the housing, in particular, inside the housing, and both the inner circumferential wall and the outer circumferential wall at the open end of the housing are provided with annular grooves 58, and both the inner circumferential wall and the outer circumferential wall of the ring-shaped structure near the bottom are provided with annular protrusions 59, and the protrusions 59 are rotatably disposed in the grooves 58. More specifically, inside the first arc-shaped shell 535, both the inner circumferential wall and the outer circumferential wall at the open end of the first arc-shaped shell 535 are provided with arc-shaped first grooves; inside the second arc shell 536, the inner peripheral wall and the outer peripheral wall at the open end of the second arc shell 536 are both provided with an arc-shaped second groove, and the first groove and the second groove are butted to form an annular groove 58. First arc body 531 all is provided with curved first arch near the internal perisporium and the periphery wall of bottom, and the internal perisporium and the periphery wall that second arc body 532 is close to the bottom all are provided with curved second arch, and first arch forms annular arch 59 after documenting mutually with the second arch.

In specific implementation, the first arc-shaped body 531 is disposed in the first arc-shaped housing 535, and the arc length of the first arc-shaped body 531 is matched with the arc length of the first arc-shaped housing 535. The second arcuate body 532 is disposed within a second arcuate housing 536, the arcuate length of the second arcuate body 532 matching the arcuate length of the second arcuate housing 536.

The transmission member 52 is disposed inside the housing, and the transmission member 52 is disposed at a lower portion of the ring structure. Specifically, the annular structure is disposed at and seals off the open end of the housing, and the transmission member 52 is disposed inside the housing and below the annular structure.

In specific implementation, the driving shaft of the driving motor 51 sequentially penetrates through the bottom walls of the casing 1 and the housing and is connected with the transmission member 52.

In particular, referring to fig. 6, the outer peripheral wall of the first arc shell 535 extends away from the bottom of the first arc shell 535, and the outer peripheral wall of the first arc shell 535 has a length greater than the inner peripheral wall. Accordingly, the outer peripheral wall of the second arcuate housing 536 extends away from the bottom of the second arcuate housing 536, and the outer peripheral wall of the second arcuate housing 536 has a greater length than the inner peripheral wall. Therefore, the length of the outer peripheral wall of the housing is greater than the length of the inner peripheral wall.

Preferably, a first end of the first arc housing 535 is rotatably connected to a first end of the second arc housing 536, and a second end of the first arc housing 535 is locked to a second end of the second arc housing 536 by a locking element. Specifically, the first end of the first arc-shaped housing 535 is rotatably connected with the first end of the second arc-shaped housing 536 through a rotating shaft, the outer peripheral wall at the second end of the first arc-shaped housing 535 is provided with a first insertion barrel 54 with a preset length, and the outer peripheral wall at the second end of the second arc-shaped housing 536 is provided with a second insertion barrel 55 with a preset length. When the first arc-shaped housing 535 is butted with the second arc-shaped housing 536, the first inserting cylinder 54 is butted with and corresponds to the second inserting cylinder 55, the locking element may be a latch 56, and the latch 56 is sequentially inserted into the first inserting cylinder 54 and the second inserting cylinder 55, so that the first arc-shaped housing 535 and the second arc-shaped housing 536 can be fixed. The predetermined length of the first insertion tube 54 and the predetermined length of the second insertion tube 55 are equal to the height of the outer peripheral wall of the housing.

It can be seen that in this embodiment, the first arc-shaped housing 535 and the second arc-shaped housing 536 are butted to form an annular housing, and the annular structure can be shielded and protected by the housing, so as to avoid dust pollution.

The use of the electric wrench will be described with reference to fig. 1 to 7: in use, the first arc-shaped shell 535 and the second arc-shaped shell 536 are opened, the steel bar sleeve is placed between the clamping pieces 533, the first arc-shaped shell 535 and the second arc-shaped shell 536 are inserted into the corresponding first insertion barrel 54 and the second insertion barrel 55 through the latch pin 56, and at this time, the clamping mechanism 53 clamps the steel bar sleeve. The user presses down input device 4, and input device 4 sends the instruction of screwing up to controller 2, and controller 2 controls driving motor 51 according to the instruction of screwing up and rotates, drives whole loop configuration through driving medium 52 and rotates, and then makes the reinforcing bar sleeve rotate, and then the reinforcing bar sleeve can screw up with the reinforcing bar. The torque sensor detects the torque of the transmission member 52, the controller 2 determines that the steel bar sleeve and the steel bar are in a screwing state when the detected torque reaches a preset torque, the driving motor 51 is controlled to stop rotating, namely the steel bar sleeve stops rotating, the steel bar sleeve and the steel bar stop continuously screwing, meanwhile, the controller 2 controls the power supply to stop supplying power to the driving motor 51, and automatic power off during screwing is achieved.

To sum up, in this embodiment, the controller 2 controls the clamping device 5 to rotate according to the tightening instruction received by the input device 4, so as to drive the steel bar sleeve to rotate, so that the steel bar sleeve is tightened with the steel bar, the controller 2 further determines whether the steel bar sleeve and the steel bar are tightened according to the rotation degree of the clamping device 5, and controls the clamping device 5 to stop rotating after tightening, so as to complete the tightening of the steel bar sleeve and the steel bar, without manual operation, the tightening of the steel bar sleeve and the steel bar can be realized only by the input of the input device 4, not only can the tightening degree be accurately controlled, the connection quality between the steel bar sleeve and the steel bar can be ensured, but also the installation time can be saved, time and labor can be saved, the operation is simple, moreover, the detection of the detection device 3 realizes the automatic stopping of the tightening, the manual labor force is reduced, and the tightening degree of the steel bar sleeve and the steel bar can be strictly controlled by the detection device 3, the quality of mechanical connection of the steel bar sleeve is ensured.

Electric wrench device embodiment:

the embodiment also provides an electric wrench device. Referring to fig. 8 and 9, the electric wrench apparatus includes: a connecting piece 6 and two electric wrenches of any one of the above. Wherein, the both ends of connecting piece 6 can dismantle with casing 1 in two electric spanner respectively and be connected. The specific implementation process of the electric wrench can be found in the above description, and the detailed description of the embodiment is omitted here.

Referring to fig. 8 and 9, the connection member 6 may include: a cylinder 61 and a spring 62. Wherein, barrel 61 is flexible material, and spring 62 sets up in barrel 61 for barrel 61 can buckle wantonly, and can reach different crooked degree, realizes the control to two electric spanner different intervals. Each end of the cylinder 61 is provided with a protruding part 611, and each protruding part 611 is provided with a clamping groove 612. Each electric wrench middle shell 1 is provided with two engaging pieces 63, the two engaging pieces 63 correspond to the two engaging grooves 612 one by one, and each engaging piece 63 is engaged with the corresponding engaging groove 612.

Specifically, referring to fig. 9, the two ends of the cylinder 61 are provided with protrusions 611, the engaging groove 612 on each protrusion 611 may be annular, the cross section of the engaging groove 612 is a right triangle, one of the right-angled sides is an opening of the engaging groove 612, and the oblique side and the other right-angled side form an inner wall of the engaging groove 612. Notch 7 has all been seted up to the tip of the first end of every electric wrench's casing 1, and the second end of every casing 1 all rotationally sets up clamping device 5. The case 1 is connected to one end of the cylinder 61: the storage tank has all been seted up at corresponding position department to two lateral walls that the notch 7 is relative, all be provided with elastic component 631 in every storage tank, the tip of elastic component 631 is provided with the engaging body 632, the cross-section of engaging body 632 is right angled triangle, one of them right-angle side of engaging body 632 is connected with elastic component 631, another right-angle side and the hypotenuse of engaging body 632 all outwards are outstanding, the engaging body 632 inserts in the block groove 612 under elastic component 631's effect, the right-angle side and the hypotenuse of engaging body 632 just in time laminate with the right-angle side and the hypotenuse of block groove 612 mutually, the block body 632 is steadily inserted under the promotion of elastic component 631 and is located in the block groove 612, can effectively guarantee the compactness of block. The engaging body 632 and the elastic member 631 form the engaging member 63.

Furthermore, the elasticity of the elastic member 631 is adjustable, so that the engaging body 632 can be inserted into the engaging groove 612 or the engaging body 632 can be taken out from the engaging groove 612 by changing the degree of tightness of the elastic member 631, that is, the connection or separation between the connecting member 6 and the housing 1 of the electric wrench can be realized. In one embodiment, the elastic member 631 may be a spring with adjustable elasticity.

Of course, the engaging structure between the engaging member 63 and the engaging groove 612 may adopt other embodiments, and this embodiment does not limit this.

It can be seen that, in this embodiment, every electric spanner all need not manual operation, not only can accurate control screw up the degree, guarantees the connection quality between steel bar sleeve and the reinforcing bar, can also practice thrift installation time, labour saving and time saving, easy operation to, two electric spanners pass through connecting piece 6 and connect, but then two electric spanners simultaneous working have realized the telescopic screw up construction of reinforcing bar of two different intervals, have improved the construction speed, practice thrift installation time.

It should be noted that the electric wrench and the electric wrench device of the present invention have the same principle, and the related points can be referred to each other.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.