Controller and use method

Abstract

The invention belongs to the field of controllers, and particularly relates to a controller and a use method.The controller comprises a control part and an induction part; the control part comprises a shell, a control rod, an elastic piece, a switch trigger disc and a magnet, the control rod is rotatably and slidably arranged on the shell, the control rod forms a control end and a connecting end, the switch trigger disc is fixedly arranged on the connecting end, and the magnet is arranged at the end part of the connecting end; the elastic piece is used for resetting the control rod after the pressing force is removed; the induction part comprises a mechanical switch located on the downward moving path of the outer side of the switch trigger disc and a magnetic induction chip located on the downward moving path of the magnet. According to the controller provided by the invention, the functions of pressing trigger and rotation adjustment are integrated, and the pressing operation and the rotation operation have a synergistic effect and are relatively independent in function, so that the controller has higher flexibility.

Description

Technical Field

[0001] The present invention belongs to the field of controllers, and in particular relates to a controller and a use method thereof. Background Art

[0002] In scenarios requiring both hands and feet, such as instrument performance and effects control, and specialized equipment control consoles, footswitches (commonly known as "pedals") are widely used as essential auxiliary input devices. Traditional footswitches typically offer a single function, either a simple push-to-trigger mechanical switch (which only outputs an on / off signal, has a limited functionality, and cannot adjust parameters) or a rotary encoder (which can only be rotated to switch options or send incremental signals, lacking intuitive, deterministic physical trigger feedback). While some designs have attempted to combine both operations into a single physical control (e.g., through tilting or zoned operation), the core problem lies in their structural inability to effectively achieve functional and logical synergy between the push and rotation actions. Operation is often unintuitive (e.g., requiring different tilt angles to trigger different functions) and functional fragmentation (the push and rotation actions still essentially trigger independent events). Furthermore, simple mechanical integration often results in complex, bulky, or unreliable structures, significantly limiting existing solutions in offering a wide range of flexible operating modes and compactness, failing to meet the urgent demand for multifunctional, integrated input devices. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a controller with a simple and compact structure and high control flexibility and a use method thereof.

[0004] The present invention provides a controller, comprising a control part and a sensing part; The control unit includes a housing, a control rod, an elastic member, a switch trigger disk and a magnet. The control rod is rotatably and slidably arranged on the housing, and one end of the control rod extends out of the housing to form a control end, and the other end extends out of the housing to form a connecting end. The switch trigger disk is fixedly arranged on the connecting end, and the magnet is arranged at the end of the connecting end. The control end is used to apply downward pressure and / or rotational force to make the control lever control the switch trigger disk and the magnet to move downward and / or rotate, and the elastic member is used to reset the control lever after the downward pressure is removed; The induction part includes a mechanical switch located on the downward movement path of the outer side of the switch trigger disk and a magnetic induction chip located on the downward movement path of the magnet.

[0005] Furthermore, the outer shell is a cylindrical structure with a hollow interior and open ends; The control rod is rotatably and slidably arranged in the hollow of the cylinder, and two openings are extended from both ends.

[0006] Furthermore, a limit ring is provided at the opening of the cylinder near the control end; The control rod comprises a control end and a sliding section which are arranged in sequence. The control end is in rotational sliding cooperation with the inner wall of the limiting ring, and the sliding section is in rotational sliding cooperation with the hollow of the cylinder.

[0007] Furthermore, a control head is provided at one end of the control end away from the sliding section, and an outer dimension of the control head is larger than an inner diameter of the limiting ring.

[0008] Furthermore, a bottom cover is provided at the opening of the cylinder near the connecting end, and a through hole having a diameter smaller than the diameter of the hollow is provided on the bottom cover; The connecting end of the control rod is arranged on the side of the sliding section away from the control end, and the connecting end extends out of the opening of the cylinder through the through hole and is rotationally and slidingly matched with the through hole.

[0009] Furthermore, the elastic member is a spring, which is arranged in the hollow of the cylinder and sleeved between the outer wall of the sliding section and the hollow inner wall of the cylinder. One end of the spring abuts the sliding section, and the other end abuts the bottom cover.

[0010] Furthermore, the bottom cover is threadedly connected to the cylinder.

[0011] Furthermore, a notch is provided on the outer side of the switch trigger disk. When the switch trigger disk is rotated until the notch is aligned with the mechanical switch, the mechanical switch cannot be triggered after the switch trigger disk is pressed down.

[0012] Furthermore, when the switch trigger plate moves downward to trigger the mechanical switch, there is a gap between the magnet and the magnetic sensing chip.

[0013] The present invention also provides a method for using the controller, which includes the following steps: Press the control end down, the control rod moves along the shell, the switch trigger disk triggers the mechanical switch, and the magnet approaches or touches the magnetic sensing chip. At this time, the trigger signal corresponding to the induced magnetic field at the corresponding position of the current magnet and the magnetic sensing chip is output; The downward pressure on the control end is canceled, and the elastic member drives the control rod to return to the initial position; When the control end is rotated, the corresponding positions of the magnet and the magnetic sensing chip change, and the corresponding induced magnetic field changes. In the next downward stroke of the control end, a changed trigger signal corresponding to the changed induced magnetic field is output.

[0014] The beneficial effect of the present invention is that the controller provided by the present invention integrates the functions of push-down triggering and rotation adjustment. The push-down and rotation operations are both synergistic and relatively independent in function, making the controller more flexible. The rotation of the magnet can change the magnetic field, which can be configured as different signals (such as mode switching, project selection, or intensity adjustment, etc.) after being sensed by the magnetic sensing chip. At the same time, the rotation is used to select and configure a specific control mode or parameter state (by corresponding different magnetic fields through the rotation angle), and then the push-down is used to activate or confirm the currently selected mode (by triggering a mechanical switch). This provides a clear "set first, then execute" logic. After the user is familiar with the operating logic, they can also rotate during the downward movement, thereby greatly improving the efficiency of the "set first, then execute" operation.

[0015] This invention also cleverly utilizes the coaxial arrangement of the switch trigger disk and magnet. After the magnet rotates to change the magnetic field for adjustment, the switch trigger disk can always align with the mechanical switch and trigger when pressed. This maximizes space utilization and makes the overall structure more compact and suitable for integration into foot pedals or other devices requiring small-volume control.

[0016] In addition, the operation of the present invention is intuitive and efficient, especially for scenarios that require the use of hands and feet (such as keyboardists, guitarists, drummers in music performances, or technicians who need to operate the console). Users can complete multiple control tasks such as selection, execution, and adjustment with just one foot, greatly improving the convenience and efficiency of operation and avoiding the tedious switching of multiple independent controllers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attachment Figure 1 It is a front cross-sectional view of the present invention.

[0018] Attachment Figure 2 It is an explosion diagram of the present invention.

[0019] In the figure, 1-control part; 11-housing; 111-limiting ring; 12-control rod; 121-control end; 122-sliding section; 123-connecting end; 13-elastic member; 14-switch trigger disk; 15-magnet; 16-control head; 17-bottom cover; 171-threaded sleeve; 172-bottom ring; 173-through hole; 18-clamp; 2-sensing part; 21-mechanical switch; 22-magnetic induction chip; 23-mounting plate. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0023] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection, electrical connection, physical connection, or wireless communication connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] As attached Figure 1 -Attached Figure 2 As shown, the present invention provides a controller, comprising a control part 1 and a sensing part 2; The control unit 1 includes a housing 11, a control rod 12, an elastic member 13, a switch trigger disk 14 and a magnet 15. The control rod 12 is rotatably and slidably arranged on the housing 11, wherein the housing 11 is fixed to the position where the controller is installed as a frame, and the control rod 12 can rotate axially on the housing 11 and can also slide back and forth in a specific direction. One end of the control rod 12 extends out of the housing 11 to form a control end 121. The control end 121 is used for human operation, for example, by manipulating the control end 121 with the hand or foot to rotate and / or press the control rod 12 downward (in a single operation, the control rod 12 can be rotated only, pressed only, or rotated and pressed simultaneously). The other end of the control rod 12 extends out of the housing 11 to form a connecting end 123. The switch trigger disk 14 is fixedly mounted on the connecting end 123. The switch trigger disk 14 is coaxially arranged with the control rod 12. The magnet 15 is arranged at the end of the connecting end 123, that is, the magnet 15 is arranged at the axis of the control rod 12. When the control rod 12 rotates, the magnet 15 rotates around the axis of the control rod 12, while the outer side of the switch trigger disk 14 revolves around the axis of the control rod 12. The control end 121 is used to apply downward pressure and / or rotational force to make the control rod 12 control the switch trigger plate 14 and the magnet 15 to move downward and / or rotate. The elastic member 13 is used to reset the control rod 12 after the downward pressure is removed. The sensing portion 2 includes a mechanical switch 21 located on the downward movement path of the outer side of the switch trigger plate 14 and a magnetic sensing chip 22 located on the downward movement path of the magnet 15 .

[0026] The downward movement of the switch trigger plate 14 contacts and triggers the mechanical switch 21 , and the downward movement of the magnet 15 may contact the magnetic sensing chip 22 or may be close to the magnetic sensing chip 22 .

[0027] The rotation of the magnet 15 can change the induced magnetic field after induction with the magnetic sensor chip 22. Therefore, different induced magnetic fields can be configured as different trigger signals. For example, the first induced magnetic field corresponds to the first trigger signal, the second induced magnetic field corresponds to the second trigger signal, and so on, thereby realizing the control of multiple trigger signals. Different induced magnetic fields can also be configured to control different intensities of the same trigger signal. For example, the first induced magnetic field corresponds to light intensity, the second induced magnetic field corresponds to medium intensity, and so on, thereby realizing stepless adjustment control of certain controls (such as volume level or effect depth).

[0028] At this point, although the switch trigger disk 14 also rotates, since its outer side can contact and trigger the mechanical switch 21 during its downward movement, regardless of the angle to which it rotates, the trigger signal can be activated or deactivated. For example, when the magnet 15 and the magnetic sensing chip 22 are in the first induced magnetic field state, the downward movement of the switch trigger disk 14 contacts the mechanical switch 21 once, activating the first trigger signal; contacting the mechanical switch 21 again deactivates the first trigger signal. For another example, when the magnet 15 and the magnetic sensing chip 22 are in the first induced magnetic field state, the downward movement of the switch trigger disk 14 contacts the mechanical switch 21, activating the first trigger signal; and returning the switch trigger disk 14 away from the mechanical switch 21 deactivates the first trigger signal (i.e., pressing the trigger and releasing it deactivates). For example, when the magnet 15 and the magnetic sensing chip 22 are in the first induced magnetic field state, the downward movement of the switch trigger disk 14 contacts the mechanical switch 21 once, thereby activating the first trigger signal. After the switch trigger disk 14 is reset, the magnet 15 is rotated through the control terminal 121, so that the magnet 15 is in the second induced magnetic field state. At this time, the switch trigger disk 14 contacts the mechanical switch 21 again, and the switching from the first trigger signal to the second trigger signal is directly completed.

[0029] The controller provided by the present invention integrates the functions of push-down triggering and rotation adjustment. The push-down and rotation operations are both synergistic and relatively independent in function, making the controller more flexible. The rotation of magnet 15 can change the magnetic field, which, after being sensed by magnetic sensor chip 22, can be configured as different signals (such as mode switching, project selection, or intensity adjustment). At the same time, rotation is used to select and configure specific control modes or parameter states (by corresponding different magnetic fields with the rotation angle), and push-down is used to activate or confirm the currently selected mode (by triggering mechanical switch 21). This provides a clear "set first, then execute" logic. Once the user is familiar with the operating logic, they can also rotate during the downward movement, thereby greatly improving the efficiency of the "set first, then execute" operation.

[0030] The present invention also cleverly utilizes the coaxial arrangement of the switch trigger disk 14 and the magnet 15. After the magnet 15 rotates to change the magnetic field for adjustment, the switch trigger disk 14 can always align with the mechanical switch 21 and trigger when pressed. This maximizes space utilization, making the overall structure more compact and suitable for integration into foot pedals or other devices requiring small-volume control.

[0031] In addition, the operation of the present invention is intuitive and efficient, especially for scenarios that require the use of hands and feet (such as keyboardists, guitarists, drummers in music performances, or technicians who need to operate the console). Users can complete multiple control tasks such as selection, execution, and adjustment with just one foot, greatly improving the convenience and efficiency of operation and avoiding the tedious switching of multiple independent controllers.

[0032] In one embodiment, the housing 11 is a cylindrical structure with a hollow interior and open ends; The control rod 12 is rotatably and slidably arranged in the hollow of the cylinder, and two openings extend out of the two ends.

[0033] In this embodiment, the housing 11 is a cylindrical structure, which can well realize the guide and limitation of the rotation and sliding of the control rod 12 in the housing 11 . At the same time, the cylinder can also provide physical protection for the control rod 12 .

[0034] In one embodiment, a limit ring 111 is provided at the opening of the cylinder near the control end 121, and the inner diameter of the limit ring 111 is smaller than the diameter of the hollow of the cylinder; The control rod 12 includes a control end 121 and a sliding section 122 which are arranged in sequence. The control end 121 is in rotational sliding engagement with the inner wall of the limiting ring 111 , and the sliding section 122 is in rotational sliding engagement with the hollow portion of the cylinder.

[0035] In this embodiment, the two sets of rotational sliding engagement structures, namely, the rotational sliding engagement between the control end 121 and the inner wall of the retaining ring 111, and the rotational sliding engagement between the sliding segment 122 and the hollow interior of the cylinder, ensure the stability of the rotational sliding engagement. This prevents deviation of the control rod 12 during rotation and sliding. Furthermore, because the inner diameter of the retaining ring 111 is smaller than the diameter of the hollow interior of the cylinder, the sliding segment 122 cannot slide out of the retaining ring 111, thereby limiting the movement of the control rod 12 toward the control end 121.

[0036] In one embodiment, a control head 16 is provided at the end of the control end 121 facing away from the sliding section 122. The outer dimensions of the control head 16 are larger than the inner diameter of the retaining ring 111. Specifically, the outer shape of the control head 16 can be circular, rectangular, or other shapes, with a circular shape being preferred for easier rotation by the operator. In this case, the outer diameter of the control head 16 is larger than the inner diameter of the retaining ring 111, thereby limiting the movement of the control rod 12 as it moves downward toward the connecting end 123. This prevents the switch trigger disk 14 from excessively compressing the mechanical switch 21, potentially damaging it, and also prevents the magnet 15 from excessively compressing the magnetic sensor chip 22, potentially damaging it. This protects the control head 16 from structural damage caused by excessive downward pressure on the control rod 12. Preferably, the outer surface of the control head 16 is provided with anti-slip grooves to facilitate rotation. Preferably, the control head 16 is constructed in a bottle cap structure to increase the surface area of ​​the control end 121, further facilitating user operation.

[0037] In one embodiment, a bottom cover 17 is provided at the opening of the cylinder near the connecting end 123 , and a through hole 173 having a diameter smaller than the diameter of the hollow is provided on the bottom cover 17 ; The connecting end 123 of the control rod 12 is disposed on the side of the sliding section 122 facing away from the control end 121. The connecting end 123 extends out of the opening of the cylinder through the through hole 173 and engages in a rotational sliding manner with the through hole 173. In this embodiment, the rotational sliding engagement between the control rod 12 and the housing 11 is achieved through the rotational sliding engagement between the control end 121 and the inner wall of the retaining ring 111, and the sliding section 122 and the hollow interior of the cylinder. Furthermore, the rotational sliding engagement between the connecting end 123 and the through hole 173 is combined to form a three-pronged rotational sliding engagement structure, which greatly ensures the stability of the rotational sliding engagement.

[0038] In one embodiment, the elastic member 13 is a spring disposed within the hollow space of the cylinder and sleeved between the outer wall of the sliding section 122 and the inner wall of the hollow space of the cylinder. One end of the spring abuts the sliding section 122, and the other end abuts the bottom cover 17. In this embodiment, the elastic member 13 is housed within the hollow space of the cylinder and cooperates with the controlled rod 12 to provide comprehensive protection.

[0039] In one embodiment, the bottom cover 17 is threadedly connected to the cylinder. Preferably, the bottom cover 17 includes a threaded sleeve 171 threadedly connected to the outer wall of the cylinder, a bottom ring 172 disposed at the bottom of the threaded sleeve 171, and an inner hole of the bottom ring 172 forms a through hole 173.

[0040] In one embodiment, the switch trigger disk 14 is fixed to the connection end 123 by two clamps 18. Such a configuration facilitates the installation of the switch trigger disk 14, thereby facilitating the assembly of the elastic member 13 and the bottom cover 17.

[0041] In one embodiment, a notch is provided on the outer side of the switch trigger disk 14 . When the switch trigger disk 14 is rotated until the notch is aligned with the mechanical switch 21 , the switch trigger disk 14 cannot trigger the mechanical switch 21 after being pressed down.

[0042] In this embodiment, the controller's "set first, execute later" control logic is rationally utilized. After execution, the switch trigger disk 14 can be rotated to the position corresponding to the notch and the mechanical switch 21. At this time, although the magnetic field of the magnet 15 has changed, the control state of the controller does not change because the mechanical switch 21 is not triggered again. However, since the switch trigger disk 14 has rotated to the position corresponding to the notch and the mechanical switch 21, even if the control lever 12 is pressed down, the encoder cannot be adjusted. Therefore, the controller is locked to prevent accidental touch. That is, the controller's "set first, execute later" control logic is utilized, and through a simple notch setting, an anti-accidental touch locking control is implemented in the mechanical structure.

[0043] The size of the notch can be set as needed, thereby setting the sensitivity of the anti-accidental-touch locking control.

[0044] In one embodiment, when the switch trigger disk 14 moves downward to trigger the mechanical switch 21, a gap is created between the magnet 15 and the magnetic sensing chip 22. This can prevent friction between the magnet 15 and the magnetic sensing chip 22 while ensuring the sensing effect, thereby increasing its service life.

[0045] In one embodiment, the sensing part 2 further includes a mounting plate 23 , which may be a circuit board having a rack structure and is disposed at the mounting position of the controller. The mechanical switch 21 and the magnetic sensing chip 22 are fixed on the mounting plate 23 .

[0046] The present invention also provides a method for using the controller, which includes the following steps: Pressing the control end 121 downward causes the control rod 12 to move along the housing 11, causing the switch trigger disk 14 to trigger the mechanical switch 21. The magnet 15 approaches or contacts the magnetic sensing chip 22, and a trigger signal corresponding to the induced magnetic field at the corresponding position of the magnet 15 and the magnetic sensing chip 22 is output. The downward pressure of the control end 121 is canceled, and the elastic member 13 drives the control rod 12 to return to the initial position; By rotating the control end 121 , the corresponding positions of the magnet 15 and the magnetic sensing chip 22 change, and the corresponding induced magnetic field changes. In the next downward stroke of the control end 121 , a changed trigger signal corresponding to the changed induced magnetic field is output.

[0047] If the switch trigger disk 14 has a notch, the notch can be rotated to align with the mechanical switch 21 via the control terminal 121 after a trigger signal is triggered, thereby achieving an anti-accidental touch lock. Pressing down on the control terminal 121 does not change the trigger state. To re-activate the control, the notch in the switch trigger disk 14 can be rotated to align with the mechanical switch 21 via the control terminal 121.

[0048] The above description is merely an embodiment and does not limit the present invention in any way. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make many possible changes, modifications, or modifications to the technical solution of the present invention into equivalent embodiments with equivalent changes using the technical content disclosed above. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A controller, characterized in that: It includes a control unit (1) and a sensing unit (2); The control portion (1) comprises a housing (11), a control rod (12), an elastic member (13), a switch trigger disk (14) and a magnet (15); the control rod (12) is rotatably and slidably arranged on the housing (11); one end of the control rod (12) extends out of the housing (11) to form a control end (121); the other end extends out of the housing (11) to form a connection end (123); the switch trigger disk (14) is fixedly arranged on the connection end (123); and the magnet (15) is arranged at the end of the connection end (123); The control end (121) is used to apply downward pressure and / or rotational force to make the control rod (12) control the switch trigger disk (14) and the magnet (15) to move downward and / or rotate, and the elastic member (13) is used to reset the control rod (12) after the downward pressure is withdrawn; The sensing portion (2) comprises a mechanical switch (21) located on a downward movement path outside the switch trigger disk (14) and a magnetic sensing chip (22) located on a downward movement path of the magnet (15).

2. The controller according to claim 1, wherein: The outer shell (11) is a cylindrical structure with a hollow interior and open ends; The control rod (12) is rotatably and slidably arranged in the hollow of the cylinder, and two openings extend from both ends.

3. The controller according to claim 2, wherein the cylinder A limit ring (111) is provided at the opening near the control end (121); The control rod (12) comprises a control end (121) and a sliding section (122) which are arranged in sequence. The control end (121) is in rotational sliding engagement with the inner wall of the limiting ring (111), and the sliding section (122) is in rotational sliding engagement with the hollow portion of the cylinder.

4. The controller according to claim 3, wherein: A control head (16) is provided at one end of the control end (121) away from the sliding section (122), and the outer dimension of the control head (16) is larger than the inner diameter of the limiting ring (111).

5. The controller according to claim 3, wherein the cylinder A bottom cover (17) is provided at the opening near one side of the connection end (123), and a through hole (173) having a diameter smaller than the hollow diameter is provided on the bottom cover (17); The connecting end (123) of the control rod (12) is arranged on a side of the sliding section (122) away from the control end (121), and the connecting end (123) extends out of the opening of the cylinder through the through hole (173) and is rotationally and slidingly engaged with the through hole (173).

6. The controller according to claim 5, wherein: The elastic member (13) is a spring, which is arranged in the hollow of the cylinder and sleeved between the outer wall of the sliding section (122) and the hollow inner wall of the cylinder. One end of the spring abuts against the sliding section (122), and the other end abuts against the bottom cover (17).

7. The controller according to claim 6, wherein: The bottom cover (17) is threadedly connected to the cylinder.

8. The controller according to any one of claims 1 to 7, wherein: A notch is provided on the outer side of the switch trigger disk (14). When the switch trigger disk (14) is rotated until the notch is aligned with the mechanical switch (21), the switch trigger disk (14) cannot trigger the mechanical switch (21) after being pressed down.

9. The controller according to any one of claims 1 to 7, wherein When the switch trigger disk (14) moves downward to trigger the mechanical switch (21), a gap exists between the magnet (15) and the magnetic sensing chip (22).

10. A method for using a controller, characterized in that: Using the controller according to any one of claims 1 to 9 comprises the following steps: When the control end (121) is pressed down, the control rod (12) moves along the housing (11), the switch trigger disk (14) triggers the mechanical switch (21), and the magnet (15) approaches or contacts the magnetic sensing chip (22). At this time, a trigger signal corresponding to the induced magnetic field at the corresponding position of the current magnet (15) and the magnetic sensing chip (22) is output; The downward pressure of the control end (121) is canceled, and the elastic member (13) drives the control rod (12) to return to the initial position; The control end (121) is rotated, and the corresponding positions of the magnet (15) and the magnetic sensing chip (22) change, and the corresponding induced magnetic field changes. In the next downward stroke of the control end (121), a changed trigger signal corresponding to the changed induced magnetic field is output.

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