Wireless electric tightening tool

Abstract

The embodiment of the utility model discloses a wireless electric tightening tool which comprises a handle assembly, a motor installed at the top of the handle assembly, a speed reducer connected with the output end of the motor, a screwdriver head installed at the other end of the speed reducer, a sensor installed between the motor and the speed reducer, and a screen display module installed at the rear end of the motor. The screen display module comprises a screen shell, a screen, a PCBA board, a dial wheel and an encoder, the screen shell is installed at the rear end of the motor, the PCBA board is installed in the screen shell, the encoder is installed in an encoder support, the encoder support is installed at the front end of the screen shell, one end of the dial wheel is installed in the encoder, the encoder is connected with the PCBA board through a cable, and the other end of the dial wheel is connected with the PCBA board through a cable. The PCBA board is connected with the screen through a cable, the other end of the dial wheel is located below a microswitch of the PCBA board, portable operations such as screwing results and running states can be directly checked on a tool, and meanwhile, user interface menu operation is faster and more efficient.

Description

Technical Field

[0001] This utility model relates to tools for tightening fasteners, specifically to a wireless electric tightening tool. Background Technology

[0002] Electric tightening tools, also known as electric wrenches, are generally handheld. An electric wrench is a tool that uses electrical energy to tighten or loosen bolts and nuts. It primarily works by transmitting torque from a motor, which is then transmitted to a socket via a reduction gear and other transmission devices. This causes the socket to rotate rapidly, thus tightening or loosening the bolt or nut. Its working principle is based on the rotational motion of the motor, which is transmitted to the working end through an internal mechanical structure. Currently, electric tightening tools require physical buttons for operation. While a few electric wrenches now have screens, they still require physical buttons. However, in practice, physical buttons are numerous and inconvenient to use. Similarly, touchscreens are relatively small and difficult to operate. Utility Model Content

[0003] This utility model provides a wireless electric tightening tool that eliminates a large number of physical buttons, allowing users to directly view tightening results, operating status, and select processes on the tool for convenient operation, while also making user interface menu operation faster and more efficient.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A wireless electric tightening tool includes a sensor, a reducer, a motor, bits, and a handle assembly. The motor is mounted on top of the handle assembly. The reducer is connected to the output end of the motor. The bits are mounted on the other end of the reducer. The sensor is mounted between the motor and the reducer. A screen display module is mounted at the rear end of the motor. The screen display module includes a screen housing, a screen, a PCBA board, a dial wheel, and an encoder. The screen housing is mounted at the rear end of the motor. The PCBA board is mounted inside the screen housing. The encoder is mounted inside an encoder bracket. The encoder bracket is mounted at the front end of the screen housing. One end of the dial wheel is mounted inside the encoder. The encoder is connected to the PCBA board via a cable. The PCBA board is connected to the screen via a cable. The other end of the dial wheel is located below the microswitch on the PCBA board.

[0006] Preferably, the dial includes a dial plate, a first connecting post, and a second connecting post. The first connecting post and the second connecting post are disposed on both sides of the dial plate. The first connecting post is installed in the groove in the middle of the encoder, and the second connecting post is located below the micro switch.

[0007] Preferably, the cross-section of the connecting post is a regular hexagon, and the cross-section of the groove in the middle of the encoder is a regular hexagon.

[0008] Preferably, the bottom of the encoder bracket is provided with an encoder placement slot, the encoder is placed in the encoder placement slot, the encoder is placed vertically, the height of the encoder placement slot is greater than the height of the encoder, and the thickness of the encoder is greater than the thickness of the encoder placement slot.

[0009] Preferably, a wire harness pressure plate is installed on the other side of the encoder bracket. The upper end of the wire harness pressure plate is provided with a wire harness groove, and the lower ends of the wire harness pressure plate are connected to the encoder bracket on both sides by fasteners. The encoder bracket is connected to the screen housing by fasteners.

[0010] Preferably, the PCBA board is connected to the screen housing by three fasteners.

[0011] Preferably, the screen housing has a dial groove, with one end of the dial passing through the dial groove and located on the lower side of the screen housing.

[0012] Preferably, it also includes connecting post three and connecting post four. Connecting post three connects the dial and connecting post one, and connecting post four connects connecting post two and the dial. The dial, connecting post two, connecting post three and connecting post four are all cylinders. The diameter of connecting post two is larger than that of connecting post four. The encoder bracket is provided with a through groove. Connecting post three passes through the through groove. The diameter of the through groove is larger than that of connecting post three.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention improves the installation of the screen by designing a dial. When the dial is rotated, it drives the rotor inside the encoder to rotate, thus achieving the desired movement. When the dial is pushed upward, it contacts the micro switch. This invention makes the user interface menu operation faster and more efficient through the interaction mode of scrolling and pushing the dial. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 This is a cross-sectional view of an embodiment of the present utility model.

[0017] Figure 3 This is a front view of the screen display module in an embodiment of this utility model.

[0018] Figure 4 This is a cross-sectional view of the screen display module according to an embodiment of this utility model.

[0019] Figure 5 This is an exploded view of the screen display module according to an embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the screen casing of an embodiment of this utility model.

[0021] Figure 7This is a schematic diagram of the screen casing from another perspective of an embodiment of this utility model.

[0022] Figure 8 This is a schematic diagram of the encoder bracket according to an embodiment of the present invention.

[0023] Figure 9 This is a schematic diagram of the encoder bracket from another perspective of an embodiment of this utility model.

[0024] Figure 10 This is a schematic diagram of the dial in an embodiment of this utility model.

[0025] Figure 11 This is a schematic diagram of the dial from another perspective in an embodiment of this utility model.

[0026] Figure 12 This is a schematic diagram of the encoder according to an embodiment of the present invention. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] As shown in the figure, this utility model discloses a wireless electric tightening tool, including a sensor 1, a reducer 2, a motor 3, a bit 4, and a handle assembly 5. The motor 3 is installed on the top of the handle assembly 5. The reducer 2 is connected to the output end of the motor 3. The reducer 2 and the motor 3 are connected on the outside by a locking nut 7. The bit 4 is installed on the other end of the reducer 2. The sensor 1 is installed between the motor 3 and the reducer 2. The motor 3 drives the reducer 2 to work, and the reducer 2 drives the bit 4 to work. The sensor is used to collect torque.

[0029] A screen display module 6 is installed at the rear end of the motor 3. The screen display module 6 includes a screen housing 8, a screen 9, a PCBA board 10, a dial 11, and an encoder 12. The encoder 12 is a rotary encoder. The screen housing 8 is installed at the rear end of the motor 3, the PCBA board 10 is installed inside the screen housing 8, the encoder 12 is installed inside an encoder bracket 13, and the encoder bracket 13 is installed at the front end of the screen housing 8. One end of the dial 11 is installed inside the encoder 12. Rotating the dial 11 drives a part inside the encoder 12 to rotate, thus achieving the toggle switching. The encoder 12 is connected to the PCBA board 10 via a cable, and the PCBA board 10 is connected to the screen 9 via a cable. The other end of the dial 11 is located below the microswitch 14 on the PCBA board 10. Driving the dial 11 to rotate or pushing the dial 11 upwards causes the rotor inside the encoder 12 to rotate, thus achieving the toggle. This invention uses a scrolling interaction mode to make the user interface menu operation faster and more efficient.

[0030] In one embodiment of this utility model, the dial 11 includes a dial 15, a first connecting post 16, and a second connecting post 17. The first connecting post 16 and the second connecting post 17 are disposed on both sides of the dial 15. The first connecting post 16 is installed in the groove 121 in the middle of the encoder 12, and the second connecting post 17 is located below the micro switch 14. When the dial 15 is pushed upward, the second connecting post 17 moves upward and contacts the micro switch 14. The micro switch 14 is used to confirm the user interface menu, and rotating the dial 15 is used to select the user interface menu. This utility model does not require touch screen operation on the screen housing 8, nor does it require the installation of operation buttons, making it convenient to operate.

[0031] In one embodiment of this utility model, the cross-section of the connecting post 16 is a regular hexagon, and the cross-section of the groove 121 in the middle of the encoder is also a regular hexagon. The regular hexagonal design eliminates the need for fasteners for connection.

[0032] In one embodiment of this utility model, the bottom of the encoder bracket 13 is provided with an encoder placement groove 131, and the encoder 12 is placed in the encoder placement groove 131. The encoder 12 is placed vertically, and the height of the encoder placement groove 131 is greater than the height of the encoder 12. In this way, when the dial moves upward, the encoder 12 also moves accordingly, so as to avoid preventing the dial from moving upward. The thickness of the encoder 12 is greater than the thickness of the encoder placement groove 131.

[0033] In one embodiment of this utility model, a wire harness pressure plate 18 is installed on the other side of the encoder bracket 13. The encoder 12 is located between the wire harness pressure plate 18 and the encoder placement slot 131, that is, the wire harness pressure plate 18 limits one end of the encoder 12. The upper end of the wire harness pressure plate 18 is provided with a wire harness slot 181, through which the wire harness passes. The lower ends of the wire harness pressure plate 18 are connected to the encoder bracket 13 on both sides by fasteners. The encoder bracket 13 is connected to the screen housing 8 by fasteners.

[0034] In one embodiment of this utility model, the PCBA board 10 is connected to the screen housing 8 by three fasteners.

[0035] In one embodiment of this utility model, the screen housing 8 is provided with a dial groove 81, and one end of the dial 15 passes through the dial groove 81 and is located on the lower side of the screen housing 8. The dial groove 81 also serves to support the dial wheel.

[0036] In one embodiment of this utility model, it further includes a third connecting post 19 and a fourth connecting post 20. The third connecting post 19 connects the dial 15 and the first connecting post 16, and the fourth connecting post 20 connects the second connecting post 17 and the dial 15. The dial 15, the second connecting post 17, the third connecting post 19, and the fourth connecting post 20 are all cylinders. The diameter of the second connecting post 17 is larger than that of the fourth connecting post 20. The encoder bracket 13 is provided with a through groove 132, through which the third connecting post 19 passes. The diameter of the through groove 132 is larger than that of the third connecting post 19, and the third connecting post 19 can move slightly up and down at the through groove 132.

[0037] The rear end of the screen housing 8 is provided with a screen mounting slot 82 and a screen protective cover mounting slot 83. The screen 9 is installed in the screen mounting slot 83, and the screen protective cover 21 is installed in the screen protective cover mounting slot 83. The screen protective cover 21 is located on the outside of the screen 9. The screen protective cover 21 is used to protect the screen.

[0038] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A wireless electric tightening tool, comprising a sensor, a reducer, a motor, a bit, and a handle assembly, characterized in that: The motor is mounted on top of the handle assembly, the reducer is connected to the output end of the motor, the bit is mounted on the other end of the reducer, the sensor is mounted between the motor and the reducer, and a screen display module is mounted at the rear end of the motor. The screen display module includes a screen housing, a screen, a PCBA board, a dial wheel, and an encoder. The screen housing is mounted at the rear end of the motor, the PCBA board is mounted inside the screen housing, the encoder is mounted inside the encoder bracket, the encoder bracket is mounted at the front end of the screen housing, one end of the dial wheel is mounted inside the encoder, the encoder is connected to the PCBA board via a cable, the PCBA board is connected to the screen via a cable, and the other end of the dial wheel is located below the microswitch on the PCBA board.

2. The wireless electric tightening tool according to claim 1, characterized in that: The dial includes a dial plate, a first connecting post, and a second connecting post. The first connecting post and the second connecting post are located on both sides of the dial plate. The first connecting post is installed in the groove in the middle of the encoder, and the second connecting post is located below the micro switch.

3. The wireless electric tightening tool according to claim 2, characterized in that: The cross-section of the connecting post is a regular hexagon, and the cross-section of the groove in the middle of the encoder is also a regular hexagon.

4. The wireless electric tightening tool according to claim 2, characterized in that: The bottom of the encoder bracket is provided with an encoder placement slot. The encoder is placed in the encoder placement slot and is placed vertically. The height of the encoder placement slot is greater than the height of the encoder, and the thickness of the encoder is greater than the thickness of the encoder placement slot.

5. The wireless electric tightening tool according to claim 4, characterized in that: A wire harness pressure plate is installed on the other side of the encoder bracket. The upper end of the wire harness pressure plate is provided with a wire harness groove. The lower ends of the wire harness pressure plate are connected to the encoder bracket on both sides by fasteners. The encoder bracket is connected to the screen housing by fasteners.

6. The wireless electric tightening tool according to claim 1, characterized in that: The PCBA board is connected to the screen housing via three fasteners.

7. The wireless electric tightening tool according to claim 2, characterized in that: The screen housing has a dial groove, with one end of the dial passing through the dial groove and located on the lower side of the screen housing.

8. The wireless electric tightening tool according to claim 3, characterized in that: It also includes connecting post three and connecting post four. Connecting post three connects the dial and connecting post one, and connecting post four connects connecting post two and the dial. The dial, connecting post two, connecting post three and connecting post four are all cylinders. The diameter of connecting post two is larger than that of connecting post four. The encoder bracket is provided with a through slot. Connecting post three passes through the through slot. The diameter of the through slot is larger than that of connecting post three.

9. The wireless electric tightening tool according to claim 1, characterized in that: The rear end of the screen casing has a screen mounting slot and a screen protective cover mounting slot. The screen is installed in the screen mounting slot, and the screen protective cover is installed in the screen protective cover mounting slot. The screen protective cover is located on the outside of the screen.

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