Segmented rotary trigger switch structure

Abstract

The invention relates to a segmented rotary trigger switch structure, and relates to the technical field of trigger switches, the segmented rotary trigger switch structure comprises a control panel, a rotating shaft is rotatably arranged on the control panel, one or more contact pieces are fixed on the side wall of the rotating shaft, and a plurality of contact groups are distributed on the control panel in the circumferential direction; an upper fixing frame is fixedly connected to the control panel, and a plurality of pressing heads are distributed on the upper fixing frame in the circumferential direction. The pressure head is in sliding connection with the fixed frame along the direction close to or away from the contact group, the pressure head can enable the contact piece to abut against the contact group, and when the contact piece abuts against the contact group, the contacts in the contact group are conducted; the upper fixing frame is further provided with a rotating mechanism and a plurality of sliding mechanisms, the rotating mechanism is used for driving the rotating shaft to rotate, and the sliding mechanisms correspond to the pressing heads in a one-to-one mode and are used for driving the pressing heads to slide. The application has the effect of realizing the control function of the sequential action of the corresponding state in different states.

Description

Technical Field

[0001] This application relates to the technical field of trigger switches, and in particular to a segmented rotary trigger switch structure. Background Art

[0002] Switch devices are an important part of modern industrial automation systems and are widely used in various mechanical equipment and control systems. Traditional switch devices mainly rely on manual operation or simple electromechanical control methods, generally having only two functions of closing and conducting, and having many limitations in complex application scenarios.

[0003] In the control of some devices, there is often a need for a general state control function, such as gear adjustment, mode switching, etc., so that the functions that can be enabled are different in different gears or modes. These functions that need to be started only under a specified state are sequential actions for this state.

[0004] Taking a simple paper cutter as an example, it includes a pressing block for pressing paper, a cutting knife for cutting paper, and a pushing block for pushing out the paper; when cutting paper, the pressing block must first press the paper firmly before the cutting knife can cut the paper; after cutting the paper, the pressing block must first lift before the pushing block can push out the paper. Therefore, whether the pressing block presses down is a state, the action of the cutting knife is a sequential action for the state where the pressing block presses down, and the action of the pushing block is a sequential action for the state where the pressing block lifts. However, common switches are difficult to achieve the control function of corresponding sequential actions in different states. Summary of the Invention

[0005] In order to facilitate the realization of the control function of corresponding sequential actions in different states, this application provides a segmented rotary trigger switch structure.

[0006] The segmented rotary trigger switch structure provided by this application adopts the following technical solutions: A segmented rotary trigger switch structure includes a control board. A rotary shaft is rotatably arranged on the control board. One or more contact pieces are fixed on the side wall of the rotary shaft. A number of contact point groups are distributed on the control board in the circumferential direction. The number of the contact point groups is an integral multiple of the number of the contact pieces. The contact pieces are located directly above the corresponding number of the contact point groups, and the contact pieces and the corresponding contact point groups are spaced apart from each other. A upper fixing frame is fixedly connected to the control board. A number of pressing heads are distributed on the upper fixing frame in the circumferential direction. The pressing heads correspond to the contact point groups one by one and are located directly above the contact point groups. The pressing heads are slidably connected to the fixing frame in a direction close to or away from the contact point groups. The pressing heads can press the contact pieces against the contact point groups, and when the contact pieces are pressed against the contact point groups, the contacts in the contact point groups are electrically connected. A rotating mechanism and a number of sliding mechanisms are further arranged on the upper fixing frame. The rotating mechanism is used to drive the rotary shaft to rotate. The sliding mechanisms correspond to the pressing heads one by one, and the sliding mechanisms are used to drive the pressing heads to slide.

[0007] By adopting the above technical solutions, when connecting the circuit, the rotating mechanism is connected to the components or programs for state control (such as the control circuit connecting the pressing block), so that when the state is changed (such as the state change of the pressing block lifting and lowering), the rotating mechanism can drive the rotary shaft to rotate simultaneously. Each sliding mechanism is respectively connected to the control components or programs for sequential actions corresponding to different states (such as for the pressing head directly opposite the contact piece, the corresponding sliding mechanism is connected to the cutter control circuit; for the pressing head not directly opposite the contact piece, the corresponding sliding mechanism is connected to the pusher control circuit), so that after the corresponding control element or program issues an execution instruction, the sliding mechanism can drive the corresponding pressing head to approach the corresponding contact point group. The execution elements for different sequential actions are connected to the contact point groups corresponding to the sliding mechanisms (such as the contact point group directly opposite the contact piece is connected to the cutter action circuit, and the contact point group not directly opposite the contact piece is connected to the pusher action circuit). During the use process, when adjusting the state, the rotating mechanism drives the rotary shaft to rotate, so that the contact piece is aligned with the contact point group corresponding to the sequential action that can be executed in this state. At this time, if the control component or program for the sequential action in this state issues an execution instruction, the corresponding sliding mechanism will drive the pressing head to approach the contact point group, and the pressing head presses the contact piece against the contact point group, making the contacts in the contact point group electrically connected, and then powering on the execution element for the sequential action to achieve the control of the corresponding sequential action. If the control element issues a stop instruction, the sliding mechanism drives the pressing head away from the contact point group, the contact piece is separated from the contact point group, the contact is disconnected, and the execution element for the sequential action is powered off. If the control element for the sequential action in a non-corresponding state issues an execution instruction, there is no contact piece during the pressing process of the pressing head, and the execution element for the sequential action in the non-corresponding state cannot be powered on, so as to facilitate the control of the sequential action in the corresponding state after the state is selected.

[0008] Preferably, a lower fixing frame is fixedly connected below the control board. A plurality of brackets are fixedly arranged on the lower fixing frame. The number of the brackets is equal to and corresponds one by one to the number of the contact groups. A deflection box is rotatably arranged on the brackets. An electromagnetic coil is fixedly arranged in the deflection box. The electromagnetic coil is electrically connected to the contact group. A fixed magnet corresponding to each electromagnetic coil is fixed on the lower fixing frame. The electromagnetic coil can attract the fixed magnet. A metal pressing piece is fixedly arranged at the bottom of the deflection box. A metal contact block is fixedly arranged on the lower fixing frame. The metal pressing piece can contact the metal contact block.

[0009] By adopting the above technical solution, the actuating elements with different sequential actions are connected to the metal contact blocks and the metal pressing pieces corresponding to the original contact groups, so as to realize the indirect connection between the actuating components and the original contact groups. When the control element with sequential action issues an instruction to make the contact group conduct, an electric current is generated in the electromagnetic coil. The electromagnetic coil generates a magnetic field to attract the fixed magnet, drives the deflection box to rotate, makes the metal pressing piece contact the metal contact block, and makes the actuating elements connected to the metal pressing piece and the metal contact block start to work. If the contact group is disconnected, the electromagnetic coil is powered off, the deflection box that loses the attraction resets, the metal pressing piece is separated from the metal contact block, and the actuating element stops working. In this way, the on-off control of the large-voltage circuit of the actuating element is realized by using the smaller current in the coil, and the safety is further improved.

[0010] Preferably, a reset spring is arranged between the control board and the deflection box. One end of the reset spring is fixedly connected to the bottom of the control board, and the other end of the reset spring is fixedly connected to the deflection box. The reset spring is used to drive the deflection box to deflect, so that the electromagnetic coil is away from the fixed magnet.

[0011] By adopting the above technical solution, when the electromagnetic coil is powered off, the attraction of the fixed magnet to the electromagnetic coil disappears. The elastic potential energy existing in the reset spring drives the deflection box to deflect in the direction of making the electromagnetic coil away from the fixed magnet, so as to quickly cut off the circuit of the actuating element and improve the reliability of the on-off control of the actuating element.

[0012] Preferably, the sliding mechanism includes an extension frame, a spur gear, a sliding frame, a rack and a micro motor. The extension frame is fixed below the upper fixing frame. The spur gear is rotatably arranged on the side of the extension plate. The sliding frame is fixed below the upper fixing frame. The rack slides on the sliding frame. The rack meshes with the spur gear. The pressing head is fixedly connected to the pushing rack. The micro motor is used to drive the spur gear to rotate.

[0013] By adopting the above technical solution, when the control element with sequential action issues an instruction, the corresponding micro motor drives the spur gear to rotate. The spur gear drives the rack to make a linear sliding movement on the sliding frame, and further drives the pressing head to approach or move away from the contact group.

[0014] Preferably, the sliding mechanism also includes a mounting shaft, a first bevel gear, and a second bevel gear. The mounting shaft rotates on an extension frame. The second bevel gear and the spur gear are both arranged on the mounting shaft. The second bevel gear is used to drive the spur gear to rotate. The micro motor is fixed on an upper fixed frame. The first bevel gear is coaxially fixed with a driving shaft of the micro motor, and the first bevel gear and the second bevel gear are meshed with each other.

[0015] By adopting the above technical solution, when the sequential action control element issues an execution instruction, the micro motor starts, drives the first bevel gear to rotate synchronously, and drives the second bevel gear to rotate, and the second bevel gear drives the spur gear to rotate synchronously. In this transmission process, the meshing transmission of the bevel gear changes the power transmission direction, so that the micro motor can be more flexibly installed on the upper fixed frame, effectively saving space and optimizing the overall layout.

[0016] Preferably, the spur gear is rotatably matched with the mounting shaft, the second bevel gear is fixedly connected to the mounting shaft, a ratchet is rotatably provided on the mounting shaft, the ratchet is fixedly connected to the spur gear, a pawl is rotatably provided on the end face of the second bevel gear, a clamping torsion spring is provided between the pawl and the second bevel gear, the clamping torsion spring drives the pawl to deflect until it abuts against the ratchet teeth of the ratchet, and a separation lever is also fixedly provided on the pawl.

[0017] By adopting the above technical solution, when the second bevel gear rotates forward under the drive of the first bevel gear, the pawl presses against the ratchet teeth of the ratchet wheel under the action of the torsion spring, thereby driving the ratchet wheel to rotate synchronously. Since the ratchet wheel is fixedly connected to the spur gear, the spur gear is rotated, pushing the pressure head close to the contact group. When the pressure head needs to be separated from the contact group, there are two ways. Method 1: the micro motor drives the second bevel gear to rotate in the opposite direction through the first bevel gear, and the ratchet wheel rotates in the opposite direction with the pawl; Method 2: directly push the separation lever to separate the pawl from the ratchet teeth of the ratchet wheel. At this time, the ratchet wheel and the spur gear can rotate freely, and the contact piece automatically restores its deformation, thereby realizing the emergency separation of the pressure head, the contact group, and the contact piece.

[0018] Preferably, an energy storage torsion spring is provided between the spur gear and the extension frame, one end of the energy storage torsion spring is fixedly connected to the spur gear, and the other end of the energy storage torsion spring is fixedly connected to the extension frame.

[0019] By adopting the above technical solution, when the micro motor drives the spur gear to rotate, the energy storage torsion spring will undergo elastic deformation as the spur gear rotates, thereby storing elastic potential energy. When the second bevel gear rotates in the opposite direction, the energy storage torsion spring gradually recovers its deformation to ensure that the ratchet wheel is still pressed against the pawl, so that the spur gear rotates in the opposite direction with the second bevel gear; when the separation lever is pushed to separate the pawl from the ratchet wheel, the energy storage torsion spring quickly recovers its deformation to drive the spur gear to rotate in the opposite direction, thereby driving the rack to slide in the opposite direction, so that the pressure head is away from the contact group, and the reset is completed.

[0020] Preferably, the rotating mechanism comprises a stepping motor, the stepping motor is fixed on an upper fixing frame, and the stepping motor is used to drive the rotating shaft to rotate.

[0021] By adopting the above technical solution, the stepper motor can convert the electrical pulse signal into angular displacement or linear displacement. When state adjustment is required, the control signal is sent to the stepper motor, and the stepper motor controls the rotation angle and speed of the rotating shaft according to the pulse to ensure the accuracy of the state change.

[0022] Preferably, a hysteresis torsion spring is arranged between the driving shaft and the rotating shaft of the stepper motor, one end of the hysteresis torsion spring is fixedly connected to the driving shaft of the stepper motor, and the other end of the hysteresis torsion spring is fixedly connected to the rotating shaft. A plurality of separation push rods are fixedly arranged on the side wall of the driving shaft of the stepper motor, the separation push rods correspond to the separation lever one by one, and the separation push rods can be against the separation lever and move the separation lever.

[0023] By adopting the above technical solution, the hysteresis torsion spring connects the rotating shaft to the driving shaft of the stepper motor. When the stepper motor outputs torque, the rotating shaft rotates through the transmission of the hysteresis torsion spring. At the same time, due to the deformable characteristics of the hysteresis torsion spring, there can be a torsion difference between the rotating shaft and the driving shaft of the stepper motor. When the pressure head presses the contact piece against the contact group, the contact piece is fixed by the pressure head, and the rotating shaft cannot move directly. At this time, if the stepper motor receives a rotation signal, the driving shaft of the stepper motor can rotate, and the torsion difference between the driving shaft of the stepper motor and the rotating shaft is absorbed by the hysteresis torsion spring. The driving shaft of the stepper motor drives the separation push rod to move first, and the separation push rod toggles the separation lever, so that the pawl is separated from the ratchet teeth of the ratchet wheel, and the spur gear loses its constraint and rotates rapidly under the elastic force of the energy storage torsion spring, and drives the pressure head to move up through the rack to release the contact piece and the rotating shaft. After the contact piece is released, the hysteresis torsion spring drives the rotating shaft to rotate rapidly, eliminating the torsion difference between the rotating shaft and the driving shaft of the stepper motor. This further enables, when adjusting the state, it is not necessary to stop the corresponding sequential actions first, but all sequential actions can be stopped directly through the state change, thus ensuring the highest priority of the state adjustment.

[0024] Preferably, a connecting sleeve is fixedly provided at one end of the driving shaft close to the stepping motor, the driving shaft of the stepping motor is inserted in the connecting sleeve, and the connecting sleeve is rotationally matched with the driving shaft of the stepping motor.

[0025] By adopting the above technical solution, the connecting sleeve plays a role of positioning and stabilization, ensuring that the stepper motor drive shaft and the rotating shaft maintain good coaxiality during the rotation process.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting a rotating shaft, a contact piece, a contact point group, a pressing head, a rotating mechanism, and a sliding mechanism, after state adjustment, the contact piece can be aligned with the contact point group in the corresponding state, and the contact piece is pressed against the contact point group by the pressing head, so that the contacts of the contact point group are conducted, thereby facilitating the control of the sequential actions in the corresponding states under different states; 2. By setting an extension frame, a spur gear, a sliding frame, a rack, a micro motor, a mounting shaft, a first bevel gear, and a second bevel gear, it is convenient to drive the pressing head to slide in the direction close to or away from the contact point group, so as to realize the function of driving the pressing head to press the contact piece against the contact point group; 3. By setting a ratchet wheel, a pawl, a tightening torsion spring, a separating lever, a storage torsion spring, a holding torsion spring, a separating push rod, and a connecting sleeve, it is further realized that when making state adjustments, it is not necessary to first stop the corresponding sequential actions, and all sequential actions can be directly stopped by changing the state, ensuring that the state adjustment has the highest priority. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of a segmented rotary trigger switch structure provided in an embodiment of the present application.

[0028] Figure 2 is a schematic structural diagram of an electromagnetic coil, a fixed magnet, a metal pressing piece, and a metal contact block in an embodiment of the present application.

[0029] Figure 3 is a partial enlarged view of the rotating mechanism and the sliding mechanism in an embodiment of the present application.

[0030] Figure 4 is Figure 2 an enlarged view of part A in

[0031] Description of the Reference Numerals: 1, control board; 11, rotating shaft; 111, contact piece; 112, connecting sleeve; 12, contact point group; 2, upper fixing frame; 21, pressing head; 22, rotating mechanism; 221, stepping motor; 222, holding torsion spring; 223, separating push rod; 3, lower fixing frame; 31, bracket; 32, deflection box; 321, electromagnetic coil; 322, metal pressing piece; 33, fixed magnet; 331, metal contact block; 34, return spring; 4, sliding mechanism; 41, extension frame; 411, storage torsion spring; 42, mounting shaft; 421, spur gear; 422, second bevel gear; 4221, pawl; 4222, separating lever; 4223, tightening torsion spring; 423, ratchet wheel; 43, sliding frame; 431, rack; 44, micro motor; 441, first bevel gear. Detailed Embodiments

[0032] The following further elaborates on the present application in conjunction with the attached Figures 1-4 drawings for a more detailed description.

[0033] This embodiment of the present application discloses a segmented rotary trigger switch structure. Refer to Figure 1 , which includes a control board 1. A rotary shaft 11 is vertically and rotatably arranged at the exact center of the upper surface of the control board 1. One or more contact pieces 111 are fixed on the side wall of the rotary shaft 11. In this embodiment, there are two contact pieces 111 symmetrically arranged on the side wall of the rotary shaft 11. The contact piece 111 has elasticity and conductivity. Specifically, the contact piece 111 can be made of a copper sheet.

[0034] Refer to Figure 1 , a number of contact point groups 12 are distributed on the control board 1 in the circumferential direction. The number of the contact point groups 12 is an integer multiple of the number of the contact pieces 111. The contact piece 111 is located directly above the corresponding number of contact point groups 12, and the contact piece 111 and the corresponding contact point groups 12 are spaced apart from each other. In this embodiment, the number of the contact point groups 12 is four groups, which is twice the number of the contact pieces 111. Each group of contact point groups 12 includes two contact points. The two contact pieces 111 are correspondingly located directly above two of the contact point groups 12, and there are no contact pieces 111 above the other two contact point groups 12.

[0035] Refer to Figure 1 , an upper fixing frame 2 is fixedly connected to the control board 1 through four upper support columns. A number of pressing heads 21 are distributed on the upper fixing frame 2 in the circumferential direction. The number of the pressing heads 21 is four. The pressing heads 21 correspond to the contact point groups 12 one by one and are located directly above the contact point groups 12. The pressing heads 21 are slidably connected to the fixing frame along the direction of approaching or departing from the contact point groups 12. The pressing heads 21 can press the contact piece 111 against the contact point groups 12, and when the contact piece 111 is pressed against the contact point groups 12, the contacts in the contact point groups 12 are electrically connected. A rotating mechanism 22 and a number of sliding mechanisms 4 are further arranged on the upper fixing frame 2. The rotating mechanism 22 is used to drive the rotary shaft 11 to rotate. The number of the sliding mechanisms 4 is four groups. The sliding mechanisms 4 correspond to the pressing heads 21 one by one, and the sliding mechanisms 4 are used to drive the corresponding pressing heads 21 to slide.

[0036] Refer to Figure 1 And Figure 2 , a lower fixing frame 3 is fixedly connected to the lower part of the control board 1 through four lower support columns. A number of brackets 31 are fixedly arranged on the lower fixing frame 3. The number of the brackets 31 is equal to and corresponds to the number of the contact point groups 12 one by one. Specifically, the number of the brackets 31 is four. A deflection box 32 is rotatably arranged on the brackets 31. An electromagnetic coil 321 is fixedly arranged in the deflection box 32. The electromagnetic coil 321 corresponds to the contact point groups 12 one by one and is electrically connected. Specifically, in a corresponding contact point group 12 and an electromagnetic coil 321, one end of the electromagnetic coil 321 is connected to one of the contacts, the other end of the electromagnetic coil 321 is connected to one electrode of the power supply, and the other contact is connected to the other electrode of the power supply. When the contact piece 111 contacts the contact point group 12, the two contacts are connected, the power supply and the electromagnetic coil 321 are electrically connected, and the electromagnetic coil 321 is powered on.

[0037] Refer toFigure 1 and Figure 2 , a fixed magnet 33 corresponding to each electromagnetic coil 321 is also fixed on the lower fixing frame 3. When the electromagnetic coil 321 is powered on, the electromagnetic coil 321 can attract the fixed magnet 33. A metal pressing piece 322 is fixedly arranged at the bottom of the deflection box 32, and a metal contact block 331 is fixedly arranged on the lower fixing frame 3. The metal pressing piece 322 can contact the metal contact block 331. A return spring 34 is arranged between the control board 1 and the deflection box 32. One end of the return spring 34 is fixedly connected to the bottom of the control board 1, and the other end of the return spring 34 is fixedly connected to the deflection box 32. The return spring 34 is used to drive the deflection box 32 to deflect, so that the electromagnetic coil 321 moves away from the fixed magnet 33.

[0038] Referring to Figure 1 and Figure 2 , during the use process, when adjusting the state, the rotating mechanism 22 drives the rotating shaft 11 to rotate. After the contact piece 111 is aligned with the contact point group 12 corresponding to the sequential action that can be executed in the adjusted state. When executing the sequential action corresponding to the current state, the corresponding sliding mechanism 4 drives the pressing head 21 to approach the corresponding contact point group 12. The pressing head 21 presses the contact piece 111 against the contact point group 12, so that the contacts in the contact point group 12 are conducted, the electromagnetic coil 321 generates current, the electromagnetic coil 321 generates a magnetic field to attract the fixed magnet 33, drives the deflection box 32 to rotate, makes the metal pressing piece 322 contact the metal contact block 331, and makes the executing element connected to the metal pressing piece 322 and the metal contact block 331 start to work. If the contact point group 12 is disconnected, the electromagnetic coil 321 is powered off, the deflection box 32 resets under the action of the return spring 34, the metal pressing piece 322 is separated from the metal contact block 331, and the executing element of the sequential action stops working. When executing the sequential action corresponding to a non-current state, even if the pressing head 21 is pressed down, there is no contact piece 111 during the pressing process of the pressing head 21, and the contacts in the corresponding contact point group cannot be conducted. This facilitates the control of the sequential action in the corresponding state after the state selection.

[0039] In order to facilitate driving the pressing head 21 to slide, referring to Figure 3 and Figure 4, the sliding mechanism 4 includes an extension frame 41, a spur gear 421, a carriage 43, a rack 431, a micro motor 44, a mounting shaft 42, a first bevel gear 441, and a second bevel gear 422. The carriage 43 and the extension frame 41 are both located below the upper fixing frame 2 and are fixedly connected to the upper fixing frame 2. The mounting shaft 42 rotates on the extension frame 41, the spur gear 421 rotates on the rotating shaft 11, the rack 431 slides on the carriage 43, the rack 431 meshes with the spur gear 421, and the indenter 21 is fixedly connected to the pushing rack 431. The micro motor 44 is used to drive the spur gear 421 to rotate. Specifically, the second bevel gear 422 is fixed on the mounting shaft 42, and the second bevel gear 422 can drive the spur gear 421 to rotate. The micro motor 44 is fixed on the upper fixing frame 2, the first bevel gear 441 is coaxially fixed with the drive shaft of the micro motor 44, and the first bevel gear 441 meshes with the second bevel gear 422. When the execution instruction is issued by the sequential action program, the micro motor 44 starts, drives the first bevel gear 441 to rotate synchronously, and drives the second bevel gear 422 to rotate. The second bevel gear 422 drives the spur gear 421 to rotate synchronously. The spur gear 421 drives the rack 431 to perform a linear sliding motion on the carriage 43, thereby driving the indenter 21 to approach or move away from the contact group 12.

[0040] In order to realize the emergency separation of the contact group 12 and the contact piece 111, refer to Figure 3 and Figure 4 , a ratchet wheel 423 is rotatably arranged on the mounting shaft 42, the ratchet wheel 423 is fixedly connected to the spur gear 421, and a pawl 4221 is rotatably arranged on the end face of the second bevel gear 422. A tightening torsion spring 4223 is arranged between the pawl 4221 and the second bevel gear 422, and the tightening torsion spring 4223 drives the pawl 4221 to deflect to abut against the ratchet teeth of the ratchet wheel 423. A separation lever 4222 is also fixedly arranged on the pawl 4221. A energy storage torsion spring 411 is arranged between the spur gear 421 and the extension frame 41, one end of the energy storage torsion spring 411 is fixedly connected to the spur gear 421, and the other end of the energy storage torsion spring 411 is fixedly connected to the extension frame 41.

[0041] Refer to Figure 3 and Figure 4 , when the second bevel gear 422 rotates forward under the drive of the first bevel gear 441, under the action of the tightening torsion spring 4223, the pawl 4221 abuts against the ratchet teeth of the ratchet wheel 423, thereby driving the ratchet wheel 423 to rotate synchronously. Since the ratchet wheel 423 is fixedly connected to the spur gear 421, the rotation of the spur gear 421 is realized, and the indenter 21 is pushed to approach the contact group 12, and the energy storage torsion spring 411 will undergo elastic deformation as the spur gear 421 rotates.

[0042] Refer to Figure 3 and Figure 4, when it is necessary to disengage the indenter 21 from the contact group 12, there are two methods. Method 1: The first bevel gear 441 is driven to rotate in the reverse direction by the micro-motor 44, and then the second bevel gear 422 is driven to rotate in the reverse direction. Under the action of the energy storage torsion spring 411, the ratchet wheel 423 rotates in the reverse direction with the ratchet pawl 4221, and the spur gear 421 rotates and drives the indenter 21 to move upward. Method 2: The separation lever 4222 is directly toggled to separate the ratchet pawl 4221 from the ratchet teeth of the ratchet wheel 423. At this time, the ratchet wheel 423 and the spur gear 421 can rotate freely, and the energy storage torsion spring 411 quickly restores its deformation to drive the spur gear 421 to rotate in the reverse direction, and then drives the rack 431 to slide in the reverse direction, so that the indenter 21 moves away from the contact group 12 to complete the reset. In this way, the emergency separation of the indenter 21, the contact group 12, and the contact piece 111 is realized.

[0043] In order to automatically stop all sequential actions during state adjustment, refer to Figure 3 and Figure 4 , the rotating mechanism 22 includes a stepping motor 221, and the stepping motor 221 is fixed on the upper fixing frame 2. The stepping motor 221 is used to drive the rotating shaft 11 to rotate. Specifically, a detent torsion spring 222 is arranged between the drive shaft of the stepping motor 221 and the rotating shaft 11. One end of the detent torsion spring 222 is fixedly connected to the drive shaft of the stepping motor 221, and the other end of the detent torsion spring 222 is fixedly connected to the rotating shaft 11. A plurality of separation push rods 223 are fixedly arranged on the side wall of the drive shaft of the stepping motor 221. Specifically, there are four separation push rods 223, and the separation push rods 223 correspond to the separation lever 4222 one by one. The separation push rods 223 can abut against the separation lever 4222 and toggle the separation lever 4222. A connecting sleeve 112 is fixedly arranged at one end of the drive shaft close to the stepping motor 221. The drive shaft of the stepping motor 221 is inserted into the connecting sleeve 112, and the connecting sleeve 112 is rotationally matched with the drive shaft of the stepping motor 221. The connecting sleeve 112 plays a role of positioning and stabilizing, ensuring good coaxiality between the drive shaft of the stepping motor 221 and the rotating shaft 11 during rotation.

[0044] Refer to Figure 3 and Figure 4When the state adjustment is required, the driving shaft of the stepper motor 221 outputs torque. The rotation shaft 11 is rotated by the transmission of the hysteresis torsion spring 222. Due to the deformable characteristics of the hysteresis torsion spring 222, there can be a torsion difference between the rotation shaft 11 and the driving shaft of the stepper motor 221. Therefore, when the pressure head 21 presses the contact piece 111 against the contact group 12, the contact piece 111 is fixed by the pressure head 21, and the rotation shaft 11 cannot move directly. At this time, if the stepper motor 221 outputs torque, the torsion difference between the drive shaft of the stepper motor 221 and the rotating shaft 11 is absorbed by the hysteresis torsion spring 222, and the drive shaft of the stepper motor 221 drives the separation push rod 223 to move first, and the separation push rod 223 drives the separation lever 4222, so that the pawl 4221 is separated from the ratchet teeth of the ratchet wheel 423, and the spur gear 421 loses its constraint and rotates rapidly under the elastic force of the energy storage torsion spring 411, and drives the pressure head 21 to move upward through the rack 431, so as to release the contact piece 111 and the rotating shaft 11. After the contact piece 111 is released, the hysteresis torsion spring 222 drives the rotating shaft 11 to rotate rapidly after the drive shaft of the stepper motor 221 rotates, thereby eliminating the torsion difference between the rotating shaft 11 and the drive shaft of the stepper motor 221. This further realizes that when adjusting the state, it is not necessary to stop the corresponding sequential actions first, but to stop all sequential actions directly through the state change, so as to ensure the highest priority of the state adjustment.

[0045] The implementation principle of a segmented rotary trigger switch structure in the embodiment of the present application is as follows: when in the adjustment state, the stepper motor 221 receives a control signal, the driving shaft of the stepper motor 221 outputs torque, and drives the rotating shaft 11 to rotate through the hysteresis torsion spring 222. The rotating shaft 11 drives the contact piece 111 to rotate until the contact piece 111 is aligned with the adjustment state, and the contact group 12 corresponding to the sequential action that can be executed.

[0046] When the sequence action corresponding to this state is executed, the corresponding micro motor 44 receives a signal, the micro motor 44 drives the first bevel gear 441 to rotate, the first bevel gear 441 drives the second bevel gear 422 to rotate, the second bevel gear 422 drives the ratchet 423 to rotate through the ratchet teeth, and then drives the spur gear 421 to rotate, the spur gear 421 meshes with the rack 431, so that the rack 431 drives the pressure head 21 to approach the corresponding contact group 12. The pressure head 21 presses the contact sheet 111 against the contact group 12, so that the contacts in the contact group 12 are connected, the power supply is connected to the electromagnetic coil 321, the electromagnetic coil 321 is energized to generate a magnetic field, and attracts the fixed magnet 33, driving the deflection box 32 to rotate, so that the metal pressing sheet 322 contacts the metal contact block 331, and the actuator connected to the metal pressing sheet 322 and the metal contact block 331 starts to work.

[0047] If the sequential action is to be stopped, method 1: drive the pressure head 21 upward through the micro motor 44 to separate the contact group 12 from the contact piece 111. At this time, the electromagnetic coil 321 is powered off, the deflection box 32 is reset under the action of the reset spring 34, the metal pressure piece 322 is separated from the metal contact block 331, and the actuator stops working. Method 2: Make the stepper motor 221 output torque, and the pressure head 21 presses the contact piece 111 against the contact group 12, and the rotating shaft 11 cannot move directly. The driving shaft of the stepper motor 221 drives the separation push rod 223 to move first, and the separation lever 4222 is moved to separate the pawl 4221 from the ratchet 423. The spur gear 421 rotates rapidly under the elastic force of the energy storage torsion spring 411, driving the pressure head 21 to move upward, releasing the contact piece 111 and the rotating shaft 11. The hysteresis torsion spring 222 drives the rotating shaft 11 to rotate rapidly, completing the state adjustment, and stopping all sequential actions at the same time to ensure the highest priority of the state adjustment. It is convenient to realize the control function of sequential actions of corresponding states in different states.

[0048] 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 segmented rotary trigger switch structure, characterized in that: It includes a control board (1), on which a rotating shaft (11) is rotatably arranged. One or more contact pieces (111) are fixed on the side wall of the rotating shaft (11). A number of contact point groups (12) are distributed on the control board (1) in the circumferential direction. The number of the contact point groups (12) is an integer multiple of the number of the contact pieces (111). The contact pieces (111) are located directly above the corresponding number of the contact point groups (12), and the contact pieces (111) and the corresponding contact point groups (12) are spaced apart from each other. A upper fixing frame (2) is fixedly connected to the control board (1). A number of pressing heads (21) are distributed on the upper fixing frame (2) in the circumferential direction. The pressing heads (21) correspond to the contact point groups (12) one by one and are located directly above the contact point groups (12). The pressing heads (21) are slidably connected to the fixing frame along the direction of approaching or departing from the contact point groups (12). The pressing heads (21) can press the contact pieces (111) against the contact point groups (12), and when the contact pieces (111) are pressed against the contact point groups (12), the contacts in the contact point groups (12) are electrically connected. A rotating mechanism (22) and a number of sliding mechanisms (4) are further arranged on the upper fixing frame (2). The rotating mechanism (22) is used to drive the rotating shaft (11) to rotate. The sliding mechanisms (4) correspond to the pressing heads (21) one by one, and the sliding mechanisms (4) are used to drive the pressing heads (21) to slide.

2. The segmented rotary trigger switch structure according to claim 1, wherein: A lower fixing frame (3) is fixedly connected below the control board (1). A number of brackets (31) are fixedly arranged on the lower fixing frame (3). The number of the brackets (31) is equal to and corresponds to the number of the contact point groups (12) one by one. A deflecting box (32) is rotatably arranged on the brackets (31). An electromagnetic coil (321) is fixedly arranged in the deflecting box (32). The electromagnetic coil (321) is electrically connected to the contact point group (12). A fixed magnet (33) corresponding to each electromagnetic coil (321) is fixed on the lower fixing frame (3). The electromagnetic coil (321) can attract the fixed magnet (33). A metal pressing piece (322) is fixedly arranged at the bottom of the deflecting box (32). A metal contact block (331) is fixedly arranged on the lower fixing frame (3). The metal pressing piece (322) can contact the metal contact block (331).

3. The segmented rotary trigger switch structure according to claim 2, wherein: A reset spring (34) is arranged between the control board (1) and the deflecting box (32). One end of the reset spring (34) is fixedly connected to the bottom of the control board (1), and the other end of the reset spring (34) is fixedly connected to the deflecting box (32). The reset spring (34) is used to drive the deflecting box (32) to deflect, so that the electromagnetic coil (321) is away from the fixed magnet (33).

4. A segmented rotary trigger switch structure according to claim 1, characterized in that: The sliding mechanism (4) comprises an extension frame (41), a spur gear (421), a slide frame (43), a rack (431), and a micro motor (44); the extension frame (41) is fixed below the upper fixed frame (2); the spur gear (421) is rotatably arranged on the side of the extension plate; the slide frame (43) is fixed below the upper fixed frame (2); the rack (431) slides on the slide frame (43); the rack (431) and the spur gear (421) are meshed with each other; the pressure head (21) is fixedly connected to the pushing rack (431); and the micro motor (44) is used to drive the spur gear (421) to rotate.

5. A segmented rotary trigger switch structure according to claim 4, characterized in that: The sliding mechanism (4) further comprises a mounting shaft (42), a first bevel gear (441), and a second bevel gear (422); the mounting shaft (42) rotates on the extension frame (41); the second bevel gear (422) and the spur gear (421) are both arranged on the mounting shaft (42); the second bevel gear (422) is used to drive the spur gear (421) to rotate; the micro motor (44) is fixed on the upper fixing frame (2); the first bevel gear (441) is coaxially fixed with a driving shaft of the micro motor (44); and the first bevel gear (441) and the second bevel gear (422) are meshed with each other.

6. A segmented rotary trigger switch structure according to claim 5, characterized in that: The spur gear (421) is rotatably matched with the mounting shaft (42), the second bevel gear (422) is fixedly connected to the mounting shaft (42), a ratchet (423) is rotatably provided on the mounting shaft (42), the ratchet (423) is fixedly connected to the spur gear (421), a pawl (4221) is rotatably provided on the end surface of the second bevel gear (422), a torsion spring (4223) is provided between the pawl (4221) and the second bevel gear (422), the torsion spring (4223) drives the pawl (4221) to deflect until it abuts against the ratchet teeth of the ratchet (423), and a separation lever (4222) is also fixedly provided on the pawl (4221).

7. A segmented rotary trigger switch structure according to claim 6, characterized in that: An energy storage torsion spring (411) is arranged between the spur gear (421) and the extension frame (41); one end of the energy storage torsion spring (411) is fixedly connected to the spur gear (421), and the other end of the energy storage torsion spring (411) is fixedly connected to the extension frame (41).

8. A segmented rotary trigger switch structure according to claim 6, characterized in that: The rotating mechanism (22) comprises a stepping motor (221), the stepping motor (221) is fixed on the upper fixing frame (2), and the stepping motor (221) is used to drive the rotating shaft (11) to rotate.

9. The segmented rotary trigger switch structure according to claim 8, wherein: A hysteresis torsion spring (222) is arranged between the driving shaft of the stepping motor (221) and the rotating shaft (11); one end of the hysteresis torsion spring (222) is fixedly connected to the driving shaft of the stepping motor (221); the other end of the hysteresis torsion spring (222) is fixedly connected to the rotating shaft (11); a plurality of separation push rods (223) are fixedly arranged on the side wall of the driving shaft of the stepping motor (221); the separation push rods (223) correspond to the separation lever (4222) one by one; the separation push rods (223) can abut against the separation lever (4222) and lever the separation lever (4222).

10. A segmented rotary trigger switch structure according to claim 9, characterized in that: One end of the drive shaft close to the stepper motor (221) is fixedly provided with a connecting sleeve (112). The drive shaft of the stepper motor (221) is inserted into the connecting sleeve (112), and the connecting sleeve (112) is rotationally matched with the drive shaft of the stepper motor (221).

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