Locking thumb dial wheel

Abstract

The invention discloses a locking thumb dial wheel. The locking thumb dial wheel comprises a shell and a controller. The shell defines a mounting space, the mounting space forms an opening in the peripheral wall of the shell, a dial wheel is pivotally mounted in the shell, the end part of the dial wheel penetrates through the opening, an angle detection piece and a touch sensing piece are arranged in the shell, the angle detection piece is used for detecting the rotating angle of the dial wheel, and a touch area opposite to the touch sensing piece is arranged on the peripheral wall of the shell. When the touch area is touched, the touch sensing piece is triggered, the angle detection piece and the touch detection piece are both in communication connection with the controller, and the controller is used for outputting or stopping outputting a control signal according to a detection signal of the angle detection piece. The controller is further used for continuously outputting a control signal according to a detection signal of the touch sensing piece and a detection signal of the angle detection piece. An operator does not need to maintain the thumb wheel at the preset angle for a long time, so that the fatigue degree of the operator in controlling the thumb thumb wheel can be reduced.

Description

Technical Field

[0001] The present application relates to the field of thumbwheel devices, and in particular to a locking thumbwheel. Background Art

[0002] In the related art, the excavator is provided with a thumb wheel, and the operator controls the excavator accessories to work by turning the thumb wheel. However, for special accessories such as breakers, vibratory rammers, rock drills, etc., the special accessories need to continue to work at a preset speed and force. The operator needs to turn the thumb wheel to a preset angle and maintain the thumb wheel at the preset angle for a long time. Such operation method can easily cause fatigue to the operator and reduce the user experience of the thumb wheel. Summary of the invention

[0003] In order to reduce the fatigue of the operator when operating the thumb wheel and improve the user experience of the thumb wheel, the present application provides a locking thumb wheel.

[0004] The present application provides a locking thumb wheel that adopts the following technical solution: A locking thumb wheel comprises: a shell, the shell defines an installation space, the installation space forms an open opening on the outer peripheral wall of the shell, a thumb wheel is pivotally installed in the shell, the end of the thumb wheel passes through the open opening, an angle detection member and a touch sensing member are arranged in the shell, the angle detection member is used to detect the rotation angle of the thumb wheel, the outer peripheral wall of the shell is provided with a touch area opposite to the touch sensing member, and the touch sensing member is triggered when the touch area is touched.

[0005] A controller, wherein the angle detection element and the touch detection element are both communicatively connected to the controller, and the controller is used to output or stop outputting a control signal according to a detection signal of the angle detection element, and the controller is also used to continuously output the control signal according to the detection signal of the touch sensing element and the detection signal of the angle detection element.

[0006] By adopting the above technical solution, the rotation angle of the thumb wheel is detected by the angle detection component, and when the thumb wheel is rotated, the touch sensing component is triggered, and the controller continuously outputs a control signal according to the detection signal of the angle detection component and the detection signal of the touch sensing component. Compared with the prior art, the operator does not need to maintain the thumb wheel at a preset angle for a long time, thereby reducing the operator's fatigue in operating the thumb wheel, thereby improving the user experience of the thumb wheel.

[0007] Preferably, the dial is provided with a magnet, the angle detection member is constructed as a Hall sensor, the angle detection member is opposite to the magnet, and the angle detection member is triggered when the dial is turned.

[0008] By adopting the above technical solution, the magnet has a magnetic field. When the dial is rotated, the dial drives the magnet to rotate, and the position of the magnetic field of the magnet changes. The angle detection component uses the Hall effect to detect the magnetic field of the magnet and generate a detection signal, thereby achieving the technical effect of the angle detection component detecting the rotation angle of the dial.

[0009] Preferably, the locking thumb wheel further comprises: a return spring, a connecting seat fixedly connected in the shell, a side wall of the connecting seat being provided with a pivot protrusion, a first limit portion and a second limit portion, the thumb wheel being pivotally mounted on the connecting seat, the thumb wheel being provided with a first stop portion and a second stop portion, along a first direction of the shell, the first stop portion and the first limit portion being located on one side of the pivot protrusion, the second stop portion and the second limit portion being located on the other side of the pivot protrusion, the return spring being pivotally sleeved on an outer peripheral wall of the pivot protrusion, the return spring being provided with a first driving arm and a second driving arm both suitable for elastic deformation, the first driving arm and the second driving arm being spaced apart along the first direction of the shell, the first driving arm being suitable for stopping with the first stop portion and suitable for limiting cooperation with the first limit portion, the second driving arm being suitable for stopping with the second stop portion and suitable for limiting cooperation with the second limit portion, and when the driving arm is bent, it is suitable for driving the corresponding stop portion to drive the thumb wheel to reset.

[0010] By adopting the above technical solution, the thumbwheel drives the first stop portion to rotate downward and drives the second stop portion to rotate upward, the first stop portion drives the first driving arm to bend and deform downward, the first driving arm separates from the first limiting portion, the second driving arm cooperates with the second limiting portion, and the second driving arm separates from the second stop portion. After the operator's hand separates from the thumbwheel, the first driving arm drives the first stop portion to drive the thumbwheel to rotate backward to the initial position, thereby achieving the technical effect of resetting the thumbwheel.

[0011] Preferably, the connecting seat is provided with a side wall of the pivot protrusion and a first pivot hole, the side wall of the connecting seat away from the pivot protrusion is provided with a second pivot hole, the pivot protrusion, the first pivot hole and the second pivot hole are all coaxially arranged, the thumb wheel comprises a thumb wheel body and a cover body, the side wall of the cover body is provided with a first pivot axis, the first pivot axis is pivotally connected to the first pivot hole, the side wall of the thumb wheel body is provided with a second pivot axis, the second pivot axis is pivotally connected to the second pivot hole, the thumb wheel body and the cover body are connected and cooperated, the reset spring is clamped between the cover body and the connecting seat, and the thumb wheel body is provided with the first stop portion and the second stop portion.

[0012] By adopting the above technical solution, the first pivot shaft is pivotally connected to the first pivot hole and the second pivot shaft is pivotally connected to the second pivot hole, so that the technical effect of pivotally connecting the thumb wheel to the connecting seat can be achieved. In addition, the reset spring is limitedly matched with the left side wall of the cover body and the connecting seat, so that the reset spring can be prevented from being separated from the connecting seat, and the reset spring can be prevented from being unable to drive the thumb wheel to reset, thereby improving the working reliability of locking the thumb wheel.

[0013] Preferably, a guide groove is provided on a side wall of the thumbwheel body close to the cover body, and a guide portion is provided on an end wall of the cover body close to the thumbwheel body, and the guide groove and the guide portion are in guiding cooperation.

[0014] By adopting the above technical solution, when the dial body and the cover body are installed on the connecting seat, the guide groove guides the cover body through the guide part, thereby reducing the connection difficulty between the dial body and the cover body, and further improving the installation efficiency of the dial body and the cover body.

[0015] Preferably, a side wall of the connecting seat is provided with a snap-fitting protrusion, and a side wall of the shell is provided with a snap-fitting hole, and the snap-fitting protrusion and the snap-fitting hole are snap-fitted.

[0016] By adopting the above technical solution, the connection seat extends into the shell and the clamping protrusion extends into the clamping hole to be clamped and matched with the clamping hole, thereby achieving the technical effect of fixedly connecting the connection seat and the shell.

[0017] Preferably, there are a plurality of the clamping protrusions and the clamping holes, and the plurality of the clamping protrusions and the plurality of the clamping holes are arranged at intervals along the circumferential direction of the shell, and the plurality of the clamping protrusions and the plurality of the clamping holes are arranged in a one-to-one correspondence.

[0018] By adopting the above technical solution, by providing a plurality of snap-in protrusions and a plurality of snap-in holes, when the connecting base is installed in the shell, the plurality of snap-in protrusions extend into the corresponding snap-in holes, thereby improving the connection reliability between the connecting base and the shell, and preventing the connecting base from detaching from the shell, causing the operator to be unable to drive the dial to rotate, thereby improving the working reliability of locking the thumb dial.

[0019] Preferably, the top wall of the shell is provided with a third stop portion, the outer peripheral wall of the shell is provided with a clamping portion opposite to the third stop portion, and the clamping portion is located on the side of the third stop portion close to the bottom wall of the shell, the clamping portion includes a first clamping arm and a second clamping arm, both of which are suitable for elastic deformation, the top walls of the first clamping arm and the second clamping arm are connected and cooperated, and there is an angle between the first clamping arm and the second clamping arm, which is suitable for fixing the shell to the installation plane through the first clamping arm and the third stop portion.

[0020] By adopting the above technical scheme, the installation plane first stops against the side wall of the second clamping arm away from the shell, and then the installation plane drives the second clamping arm to move toward the inside of the shell, and the second clamping arm drives the first clamping arm to move toward the inside of the shell. When the installation plane is located above the connection between the first clamping arm and the second clamping arm, the installation plane is separated from the second clamping arm, and driven by elastic force, the second clamping arm drives the first clamping arm to move toward the outside of the shell, and the side wall of the first clamping arm away from the shell stops and limits the installation plane, and the lower end wall of the third stopping part stops and limits the installation plane, thereby achieving the technical effect of fixing the shell to the installation plane.

[0021] Preferably, there are a plurality of the clamping portions, and the plurality of the clamping portions are spaced apart along the circumferential direction of the shell.

[0022] By adopting the above technical solution and providing a plurality of clamping parts, the plurality of clamping parts can improve the connection reliability between the housing and the mounting plane, thereby preventing the housing from being separated from the mounting plane.

[0023] Preferably, an outer wall of the shell is provided with an avoidance hole, and an indicator light opposite to the avoidance hole is provided in the shell. The indicator light is communicatively connected with the controller. When the controller continuously outputs the control signal, the controller controls the indicator light to light up, and when the controller does not continuously transmit the control signal, the controller controls the indicator light to turn off.

[0024] By adopting the above technical solution, the operator can determine whether the controller continues to output the control signal by observing whether the indicator light is on. The operator does not need to observe whether the excavator attachment continues to work to determine whether the controller continues to output the control signal, thereby reducing the operator's work intensity and improving the user experience of locking the thumb wheel.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The rotation angle of the thumb wheel is detected by the angle detection component. When the thumb wheel is rotated, the touch sensing component is triggered, and the controller continuously outputs a control signal according to the detection signal of the angle detection component and the detection signal of the touch sensing component. Compared with the prior art, the operator does not need to maintain the thumb wheel at a preset angle for a long time, thereby reducing the operator's fatigue in operating the thumb wheel, thereby improving the user experience of the thumb wheel; 2. The pivotal connection between the first pivot shaft and the first pivot hole and the pivotal connection between the second pivot shaft and the second pivot hole can achieve the technical effect of pivotal connection between the thumb wheel and the connecting seat. In addition, the reset spring is limitedly matched with the left side wall of the cover body and the connecting seat, so as to prevent the reset spring from being separated from the connecting seat and the reset spring from being unable to drive the thumb wheel to reset, thereby improving the reliability of locking the thumb wheel; 3. When the thumbwheel body and the cover body are installed on the connecting seat, the guide groove guides the cover body through the guide part, thereby reducing the connection difficulty between the thumbwheel body and the cover body, and further improving the installation efficiency of the thumbwheel body and the cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of locking the thumb wheel according to an embodiment of the present application; Figure 2 is a schematic diagram of a partial structure of a locking thumb wheel according to an embodiment of the present application; Figure 3 is a cross-sectional view of a locking thumb wheel according to an embodiment of the present application; Figure 4 is a cross-sectional view at another angle of the locking thumb wheel in the embodiment of the present application; Figure 5 It is a cross-sectional view at another angle of the locking thumb wheel in the embodiment of the present application.

[0027] Description of reference numerals: 100. Lock the thumb wheel; 1. Shell; 11. Installation space; 12. Open mouth; 13. Pedal wheel; 131. Magnet; 132. First stop portion; 133. Second stop portion; 134. Pedal wheel body; 1341. Second pivot axis; 1342. Guide groove; 135. Cover body; 1351. First pivot axis; 1352. Guide portion; 14. Angle detection member; 15. Touch sensing member; 16. Connecting seat; 161. Pivoting protrusion; 162. First limiting portion; 163. Second limiting portion; 164. First pivot hole; 165. Second pivot hole; 166. Clamping protrusion; 17. Clamping hole; 18. Third stop portion; 19. Clamping portion; 191. First clamping arm; 192. Second clamping arm; 20. Avoidance hole; 21. Indicator light; 22. Touch area; 3. Return spring; 31. First drive arm; 32. Second drive arm. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0029] The embodiment of the present application discloses a locking thumb wheel 100 .

[0030] Reference Figure 1-Figure 3 According to the embodiment of the present application, the locking thumb wheel 100 comprises: a housing 1 and a controller. The housing 1 defines an installation space 11, and the installation space 11 forms an opening 12 on the outer peripheral wall of the housing 1. Specifically, along the height direction of the housing 1, the height direction of the housing 1 can be up to Figure 1 In the up-down direction, the open mouth 12 is located at the upper end wall of the shell 1, and a dial wheel 13 is pivotally mounted in the shell 1. The upper end of the dial wheel 13 passes through the open mouth 12. An angle detection member 14 and a touch sensing member 15 are provided in the shell 1. The angle detection member 14 is used to detect the rotation angle of the dial wheel 13. A touch area 22 opposite to the touch sensing member 15 is provided on the outer peripheral wall of the shell 1. Specifically, the touch area 22 is located at the upper end wall of the shell 1. When the touch area 22 is touched by the hand of the operator, the touch sensing member 15 is triggered.

[0031] The angle detection element 14 and the touch detection element are both connected to the controller for communication. The controller is used to output or stop outputting control signals according to the detection signals of the angle detection element 14 . The controller is also used to continuously output control signals according to the detection signals of the touch sensing element 15 and the angle detection element 14 .

[0032] Specifically, along the first direction of the housing 1, the first direction of the housing 1 may refer to Figure 1 In the front-to-back direction, the operator can drive the dial 13 to rotate forward or backward. When the touch sensing element 15 is not triggered, the operator drives the dial 13 to rotate to a preset angle. The angle detection element 14 detects the rotation angle of the dial 13 and generates a detection signal. The controller outputs a control signal according to the detection signal of the angle detection element 14.

[0033] When the operator drives the dial 13 to rotate to a preset angle and the touch sensor 15 is triggered, the controller continuously outputs a control signal according to the detection signal of the angle detection element 14. After the controller continuously outputs the control signal, the operator's hand can be separated from the dial 13. The operator does not need to use his hand to maintain the dial 13 at the preset angle for a long time to control the excavator attachment to work for a long time.

[0034] After the controller continuously outputs the control signal, the operator drives the dial wheel 13 to rotate in the opposite direction, and the controller stops continuously outputting the control signal according to the detection signal of the angle detection component 14. Specifically, after the operator drives the dial wheel 13 to rotate forward and the controller continuously outputs the control signal, the operator drives the dial wheel 13 to rotate backward, the angle detection component 14 detects the rotation angle of the dial wheel 13 and generates a detection signal, and the controller stops continuously outputting the control signal according to the detection signal of the angle detection component 14.

[0035] Furthermore, after the controller continuously outputs the control signal, the operator can drive the dial wheel 13 to rotate in the same direction, and the rotation angle of the dial wheel 13 is greater than the rotation angle of the dial wheel 13 corresponding to the control signal, and the controller stops continuously outputting the control signal according to the detection signal of the angle detection component 14. Specifically, after the operator drives the dial wheel 13 to rotate forward and the controller continuously outputs the control signal, the operator drives the dial wheel 13 to rotate forward, and the rotation angle of the dial wheel 13 is greater than the rotation angle of the dial wheel 13 corresponding to the control signal, the angle detection component 14 detects the rotation angle of the dial wheel 13 and generates a detection signal, and the controller stops continuously outputting the control signal according to the detection signal of the angle detection component 14.

[0036] It should be noted that the control signal is used to control the excavator attachment to work, and when the dial 13 rotates to different angles, the controller transmits different control signals. In some specific embodiments, the control signal can be used to control the movement speed of the excavator attachment. When the rotation angle of the dial 13 is larger, the movement speed of the excavator attachment is larger. In other specific embodiments, the control signal can be used to control the excavation force of the excavator attachment, etc. When the rotation angle of the dial 13 is larger, the excavation force of the excavator attachment is larger. In addition, the rotation direction of the dial 13 can also be used to control the movement direction of the excavator attachment.

[0037] In some specific embodiments, the angle detection element 14 may be a rotary encoder, and the touch sensing element 15 may be a capacitive touch sensor, but the present application is not limited thereto. The angle detection element 14 may be a potentiometer, etc., and the touch sensing element 15 may be a resistive touch sensor, etc.

[0038] Thus, the rotation angle of the thumb wheel 13 is detected by the angle detection member 14, and when the thumb wheel 13 is rotated, the touch sensing member 15 is triggered, and the controller continuously outputs a control signal according to the detection signal of the angle detection member 14 and the detection signal of the touch sensing member 15. Compared with the prior art, the operator does not need to maintain the thumb wheel 13 at a preset angle for a long time, thereby reducing the operator's fatigue in operating the thumb wheel 13, and further improving the user experience of the thumb wheel 13.

[0039] Reference Figure 3 In some embodiments of the present application, the dial 13 is provided with a magnet 131, the angle detection member 14 is constructed as a Hall sensor, the angle detection member 14 is opposite to the magnet 131, and the angle detection member 14 is triggered when the dial 13 is turned.

[0040] Specifically, the magnet 131 has a magnetic field. When the dial 13 is rotated, the dial 13 drives the magnet 131 to rotate, and the magnetic field of the magnet 131 changes position. The angle detection component 14 uses the Hall effect to detect the magnetic field of the magnet 131 and generate a detection signal, thereby achieving the technical effect of the angle detection component 14 detecting the rotation angle of the dial 13.

[0041] Reference Figure 3 and Figure 4 In some embodiments of the present application, the locking thumb wheel 100 may further include: a reset spring 3, a connecting seat 16 is fixedly connected to the shell 1, and a side wall of the connecting seat 16 is provided with a pivot protrusion 161, a first limiting portion 162 and a second limiting portion 163. Specifically, along the second direction of the shell 1, the second direction of the shell 1 can refer to Figure 1 In the left and right directions, the pivot protrusion 161, the first limiting portion 162 and the second limiting portion 163 are all located on the left side wall of the connecting seat 16. Along the height direction of the shell 1, the dial wheel 13 is pivotally installed on the upper end of the connecting seat 16. The dial wheel 13 is provided with a first stop portion 132 and a second stop portion 133. Along the first direction of the shell 1, the first stop portion 132 and the first limiting portion 162 are located on one side of the pivot protrusion 161, and the second stop portion 133 and the second limiting portion 163 are located on the other side of the pivot protrusion 161. Specifically, the first stop portion 132 and the first limiting portion 162 are both located in front of the pivot protrusion 161, and the second stop portion 133 and the second limiting portion 163 are both located behind the pivot protrusion 161.

[0042] In some specific embodiments, the first stop portion 132 is located in front of the first limiting portion 162 , and the second stop portion 133 is located behind the second limiting portion 163 .

[0043] The reset spring 3 is pivotally sleeved on the outer peripheral wall of the pivot protrusion 161. The reset spring 3 is provided with a first driving arm 31 and a second driving arm 32, both of which are suitable for elastic deformation. The first driving arm 31 and the second driving arm 32 are spaced apart along the first direction of the shell 1. The first driving arm 31 is located in front of the pivot protrusion 161, and the second driving arm 32 is located behind the pivot protrusion 161. The first driving arm 31 is suitable for abutting against the first stop portion 132 and for limiting cooperation with the first limit portion 162. The second driving arm 32 is suitable for abutting against the second stop portion 133 and for limiting cooperation with the second limit portion 163. When the driving arm is bent, it is suitable for driving the corresponding stop portion to drive the dial 13 to reset.

[0044] Specifically, when the dial 13 is driven to rotate forward, the dial 13 drives the first stop portion 132 to rotate downward and drives the second stop portion 133 to rotate upward, and the first stop portion 132 drives the first driving arm 31 to bend and deform downward, and the first driving arm 31 is separated from the first limiting portion 162, and the second driving arm 32 is limited and cooperated with the second limiting portion 163, and the second driving arm 32 is separated from the second stop portion 133. After the operator's hand is separated from the dial 13, the first driving arm 31 drives the first stop portion 132 to drive the dial 13 to rotate backward to the initial position, thereby achieving the technical effect of resetting the dial 13, and after the dial 13 rotates to the initial position, the first driving arm 31 is limited and cooperated with the first limiting portion 162.

[0045] The second driving arm 32 cooperates with the second limiting portion 163 to prevent the first stop portion 132 from driving the first driving arm 31 to drive the reset spring 3 to rotate around the central axis of the pivot protrusion 161, and prevent the first stop portion 132 from failing to drive the first driving arm 31 to bend and deform, thereby preventing the first driving arm 31 from failing to drive the dial wheel 13 to reset to the initial position. Moreover, after the dial wheel 13 is reset to the initial position, the first driving arm 31 cooperates with the first limiting portion 162 to prevent the first driving arm 31 from excessively driving the dial wheel 13 to rotate backwards, causing the dial wheel 13 to pass the initial position, thereby improving the reset reliability of the dial wheel 13.

[0046] When the dial 13 is driven to rotate toward the rear, the dial 13 drives the second stop portion 133 to rotate downward and drives the first stop portion 132 to rotate upward, the second stop portion 133 drives the second driving arm 32 to bend and deform downward, the second driving arm 32 is separated from the second limiting portion 163, the first driving arm 31 is limited by the first limiting portion 162, and the first driving arm 31 is separated from the first stop portion 132. After the operator's hand is separated from the dial 13, the second driving arm 32 drives the second stop portion 133 to drive the dial 13 to rotate forward to the initial position, and after the dial 13 rotates to the initial position, the second driving arm 32 is limited by the second limiting portion 163.

[0047] Reference Figure 3In some embodiments of the present application, the side wall of the connecting seat 16 having the pivot protrusion 161 is provided with a first pivot hole 164, the side wall of the connecting seat 16 away from the pivot protrusion 161 is provided with a second pivot hole 165, the pivot protrusion 161, the first pivot hole 164 and the second pivot hole 165 are all coaxially arranged, the dial 13 includes a dial body 134 and a cover body 135, the side wall of the cover body 135 is provided with a first pivot shaft 1351, the first pivot shaft 1351 is pivotally connected to the first pivot hole 164, and the side wall of the dial body 134 is provided with a second The pivot shaft 1341, the second pivot shaft 1341 and the second pivot hole 165 are pivotally connected, and the dial body 134 and the cover body 135 are connected and matched. Specifically, along the second direction of the shell 1, the pivot protrusion 161 and the first pivot hole 164 are both located on the left side wall of the connecting seat 16, the second pivot hole 165 is located on the right side wall of the connecting seat 16, the cover body 135 is located on the left side of the connecting seat 16, and the dial body 134 is located on the right side of the connecting seat 16. In other words, the connecting seat 16 is clamped between the dial body 134 and the cover body 135.

[0048] The first pivot shaft 1351 is pivotally connected to the first pivot hole 164 and the second pivot shaft 1341 is pivotally connected to the second pivot hole 165 , so that the technical effect of pivotally connecting the dial wheel 13 to the connecting seat 16 can be achieved.

[0049] In addition, the reset spring 3 is sandwiched between the cover body 135 and the connecting seat 16, and the left side wall of the thumb wheel body 134 is provided with a first stop portion 132 and a second stop portion 133. The reset spring 3 is limitedly matched with the left side wall of the cover body 135 and the connecting seat 16, thereby preventing the reset spring 3 from detaching from the connecting seat 16 and preventing the reset spring 3 from being unable to drive the thumb wheel 13 to reset, thereby improving the working reliability of locking the thumb thumb wheel 100.

[0050] Reference Figure 3 In some embodiments of the present application, a guide groove 1342 is provided on the side wall of the dial body 134 close to the cover body 135, and a guide portion 1352 is provided on the end wall of the cover body 135 close to the dial body 134. That is to say, along the second direction of the shell 1, the guide groove 1342 is located on the left side wall of the dial body 134, and the guide portion 1352 is located on the right side wall of the cover body 135, and the guide groove 1342 and the guide portion 1352 are guided and matched.

[0051] Through the guiding cooperation between the guide groove 1342 and the guide part 1352, when the dial body 134 and the cover body 135 are both installed on the connecting seat 16, the guide groove 1342 guides the cover body 135 through the guide part 1352, thereby reducing the connection difficulty between the dial body 134 and the cover body 135, and further improving the installation efficiency of the dial body 134 and the cover body 135.

[0052] In some specific embodiments, the shape of the guide groove 1342 and the shape of the guide portion 1352 can both be configured as an arc shape.

[0053] Reference Figure 1 and Figure 4 In some embodiments of the present application, along the first direction of the shell 1, the front side wall or the rear side wall of the connecting seat 16 is provided with a snap-fitting protrusion 166, and the front side wall or the rear side wall of the shell 1 is provided with a snap-fitting hole 17, and the snap-fitting protrusion 166 and the snap-fitting hole 17 are snap-fitted.

[0054] It should be noted that when the snap-fit ​​protrusion 166 is arranged on the front side wall of the connecting seat 16 , the snap-fit ​​hole 17 is arranged on the front side wall of the shell 1 ; when the snap-fit ​​protrusion 166 is arranged on the rear side wall of the connecting seat 16 , the snap-fit ​​hole 17 is arranged on the rear side wall of the shell 1 .

[0055] Specifically, along the height direction of the shell 1, the lower end wall of the shell 1 is provided with a mounting hole connected to the mounting space 11. After the dial 13 and the return spring 3 are installed on the connecting seat 16, the connecting seat 16 extends into the shell 1 through the mounting hole and the snap-fitting protrusion 166 extends into the snap-fitting hole 17 to snap-fit ​​with the snap-fitting hole 17, thereby achieving the technical effect of fixedly connecting the connecting seat 16 and the shell 1.

[0056] When the connection base 16 needs to be removed, the operator drives the engaging protrusion 166 to extend out of the engaging hole 17 to unlock the connection base 16 and the housing 1, and then the operator takes out the connection base 16 through the mounting hole. It should be noted that the engaging hole 17 is constructed as a through hole.

[0057] Reference Figure 4 In some embodiments of the present application, there are multiple snap-fit ​​protrusions 166 and multiple snap-fit ​​holes 17, and the multiple snap-fit ​​protrusions 166 and multiple snap-fit ​​holes 17 are spaced apart along the circumferential direction of the shell 1, and the multiple snap-fit ​​protrusions 166 and the multiple snap-fit ​​holes 17 are arranged one by one.

[0058] By providing a plurality of snap-fit ​​protrusions 166 and a plurality of snap-fit ​​holes 17, when the connecting base 16 is installed in the shell 1, the plurality of snap-fit ​​protrusions 166 extend into the corresponding snap-fit ​​holes 17, thereby improving the connection reliability between the connecting base 16 and the shell 1, and preventing the connecting base 16 from being separated from the shell 1, causing the operator to be unable to drive the dial 13 to rotate, thereby improving the working reliability of locking the thumb dial 100.

[0059] Reference Figure 1 , Figure 4 and Figure 5In some embodiments of the present application, a third stop portion 18 is provided on the top wall of the shell 1, and a clamping portion 19 is provided on the outer peripheral wall of the shell 1 opposite to the third stop portion 18, and the clamping portion 19 is located on the side of the third stop portion 18 close to the bottom wall of the shell 1, and the clamping portion 19 includes a first clamping arm 191 and a second clamping arm 192, both of which are suitable for elastic deformation, and the top walls of the first clamping arm 191 and the second clamping arm 192 are connected and cooperated, that is, along the height direction of the shell 1, the first clamping arm 191 is located above the second clamping arm 192, and the first clamping arm 191 and the second clamping arm 192 are both inclined toward the outside of the shell 1, and there is an angle between the first clamping arm 191 and the second clamping arm 192, which is suitable for fixing the shell 1 to the installation plane through the first clamping arm 191 and the third clamping portion 19.

[0060] Specifically, when the shell 1 is clamped to the installation plane, the installation plane first stops at the side wall of the second clamping arm 192 away from the shell 1, and then the installation plane drives the second clamping arm 192 to move toward the inside of the shell 1, and the second clamping arm 192 drives the first clamping arm 191 to move toward the inside of the shell 1. When the installation plane is located above the connection between the first clamping arm 191 and the second clamping arm 192, the installation plane is separated from the second clamping arm 192, and driven by elastic force, the second clamping arm 192 drives the first clamping arm 191 to move toward the outside of the shell 1, and the side wall of the first clamping arm 191 away from the shell 1 stops and limits the installation plane, and the lower end wall of the third stop portion 18 stops and limits the installation plane, thereby achieving the technical effect of fixing the shell 1 to the installation plane.

[0061] In some specific embodiments, the installation plane may be a workbench of an excavator or the like.

[0062] Reference Figure 1 , Figure 4 and Figure 5 In some embodiments of the present application, there are multiple clips 19, and the multiple clips 19 are arranged at intervals along the circumferential direction of the shell 1, and the shape of the third stop portion 18 is rectangular, and the multiple clips 19 are opposite to the third stop portion 18. By setting multiple clips 19, the multiple clips 19 can improve the connection reliability between the shell 1 and the installation plane, thereby preventing the shell 1 from being separated from the installation plane.

[0063] Reference Figure 1 and Figure 5In some embodiments of the present application, an avoidance hole 20 is provided on the outer wall of the shell 1, and the avoidance hole 20 is constructed as a through hole. An indicator light 21 opposite to the avoidance hole 20 is provided in the shell 1. The indicator light 21 is communicatively connected with the controller. When the controller continuously outputs a control signal, the controller controls the indicator light 21 to light up. When the controller does not continuously transmit a control signal, the controller controls the indicator light 21 to go out.

[0064] The operator can determine whether the controller continues to output control signals by observing whether the indicator light 21 is on. The operator does not need to observe whether the excavator attachment continues to work to determine whether the controller continues to output control signals, thereby reducing the operator's workload and improving the user experience of locking the thumb wheel 100.

[0065] Further, there can be two avoidance holes 20 and two indicator lights 21 , and the two avoidance holes 20 and the two indicator lights 21 are arranged spaced apart along the first direction of the shell 1 , and the two avoidance holes 20 and the two indicator lights 21 are arranged in a one-to-one correspondence.

[0066] In some specific embodiments, the two indicator lights 21 are respectively a first indicator light 21 and a second indicator light 21. When the dial wheel 13 rotates toward the front and the controller continuously outputs a control signal, the first indicator light 21 lights up and the second indicator light 21 goes out. When the dial wheel 13 rotates toward the rear and the controller continuously outputs a control signal, the second indicator light 21 lights up and the first indicator light 21 goes out.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A locking thumb wheel, characterized in that: include: A shell (1), wherein the shell (1) defines an installation space (11), wherein the installation space (11) forms an open opening (12) on the outer peripheral wall of the shell (1), wherein a thumbwheel (13) is pivotally mounted in the shell (1), wherein the end of the thumbwheel (13) passes through the open opening (12), wherein an angle detection member (14) and a touch sensing member (15) are arranged in the shell (1), wherein the angle detection member (14) is used to detect the rotation angle of the thumbwheel (13), wherein the outer peripheral wall of the shell (1) is provided with a touch area (22) opposite to the touch sensing member (15), wherein the touch sensing member (15) is triggered when the touch area (22) is touched; A controller, wherein the angle detection element (14) and the touch detection element are both communicatively connected to the controller, and the controller is used to output or stop outputting a control signal according to a detection signal of the angle detection element (14). The controller is also used to continuously output the control signal according to a detection signal of the touch sensing element (15) and a detection signal of the angle detection element (14).

2. The locking thumb wheel according to claim 1, characterized in that: The dial wheel (13) is provided with a magnet (131), the angle detection member (14) is configured as a Hall sensor, the angle detection member (14) is opposite to the magnet (131), and the angle detection member (14) is triggered when the dial wheel (13) is dialed.

3. The locking thumb wheel according to claim 1, characterized in that: Also includes: A reset spring (3), a connecting seat (16) is fixedly connected inside the shell (1), a side wall of the connecting seat (16) is provided with a pivot protrusion (161), a first limiting portion (162) and a second limiting portion (163), the dial wheel (13) is pivotally mounted on the connecting seat (16), the dial wheel (13) is provided with a first stop portion (132) and a second stop portion (133), along a first direction of the shell (1), the first stop portion (132) and the first limiting portion (162) are located on one side of the pivot protrusion (161), the second stop portion (133) and the second limiting portion (163) are located on the other side of the pivot protrusion (161), the reset spring (3) Pivotally sleeved on the outer peripheral wall of the pivot protrusion (161), the reset spring (3) is provided with a first driving arm (31) and a second driving arm (32) both suitable for elastic deformation, the first driving arm (31) and the second driving arm (32) are spaced apart along the first direction of the shell (1), the first driving arm (31) is suitable for abutting against the first stop portion (132) and suitable for limiting cooperation with the first limiting portion (162), the second driving arm (32) is suitable for abutting against the second stop portion (133) and suitable for limiting cooperation with the second limiting portion (163), and when the driving arm is bent, it is suitable for driving the corresponding stop portion to drive the dial (13) to reset.

4. The locking thumb wheel according to claim 3, characterized in that: The side wall of the connecting seat (16) having the pivot protrusion (161) is provided with a first pivot hole (164), and the side wall of the connecting seat (16) away from the pivot protrusion (161) is provided with a second pivot hole (165). The pivot protrusion (161), the first pivot hole (164) and the second pivot hole (165) are all coaxially arranged. The thumbwheel (13) comprises a thumbwheel body (134) and a cover body (135). The side wall of the cover body (135) is provided with a first pivot shaft (1351). The first pivot shaft (1351) 1351) is pivotally connected to the first pivot hole (164), the side wall of the thumbwheel body (134) is provided with a second pivot shaft (1341), the second pivot shaft (1341) is pivotally connected to the second pivot hole (165), the thumbwheel body (134) and the cover body (135) are connected and matched, the return spring (3) is clamped between the cover body (135) and the connecting seat (16), and the thumbwheel body (134) is provided with the first stop portion (132) and the second stop portion (133).

5. The locking thumb wheel according to claim 4, characterized in that: The side wall of the thumbwheel body (134) close to the cover body (135) is provided with a guide groove (1342), and the end wall of the cover body (135) close to the thumbwheel body (134) is provided with a guide portion (1352), and the guide groove (1342) and the guide portion (1352) are matched for guiding.

6. The locking thumb wheel according to claim 3, characterized in that: The side wall of the connecting seat (16) is provided with a snap-fitting protrusion (166), and the side wall of the housing (1) is provided with a snap-fitting hole (17), and the snap-fitting protrusion (166) and the snap-fitting hole (17) are snap-fitted.

7. The locking thumb wheel according to claim 6, characterized in that: There are a plurality of the snap-fit ​​protrusions (166) and the snap-fit ​​holes (17), and the plurality of the snap-fit ​​protrusions (166) and the plurality of the snap-fit ​​holes (17) are arranged at intervals along the circumferential direction of the shell (1), and the plurality of the snap-fit ​​protrusions (166) and the plurality of the snap-fit ​​holes (17) are arranged in a one-to-one correspondence.

8. The locking thumb wheel according to claim 1, characterized in that: The top wall of the shell (1) is provided with a third stop portion (18), the outer peripheral wall of the shell (1) is provided with a clamping portion (19) opposite to the third stop portion (18), and the clamping portion (19) is located on the side of the third stop portion (18) close to the bottom wall of the shell (1), and the clamping portion (19) comprises a first clamping arm (191) and a second clamping arm (192) both suitable for elastic deformation, the top walls of the first clamping arm (191) and the second clamping arm (192) are connected and matched, and an angle is formed between the first clamping arm (191) and the second clamping arm (192), which are suitable for fixing the shell (1) to the installation plane through the first clamping arm (191) and the third stop portion (18).

9. The locking thumb wheel according to claim 8, characterized in that: There are a plurality of the clamping portions (19), and the plurality of the clamping portions (19) are arranged at intervals along the circumferential direction of the housing (1).

10. The locking thumb wheel according to claim 1, characterized in that: An avoidance hole (20) is provided on the outer peripheral wall of the shell (1), and an indicator light (21) is provided in the shell (1) opposite to the avoidance hole (20). The indicator light (21) is connected to the controller for communication. When the controller continuously outputs the control signal, the controller controls the indicator light (21) to light up, and when the controller does not continuously output the control signal, the controller controls the indicator light (21) to turn off.

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