A pull-press knob switch

Abstract

The present invention relates to a pull-press knob switch, which at least includes a base, a pull-press rotation assembly, an elastic assembly, and a plug-in circuit board. By providing a gear slot that can be pulled up and pressed down on the outer circumferential surface of the sleeved portion of the knob bracket, and providing a plurality of radially extending guide cylindrical tubes along the circumferential direction on the outer wall of the cylindrical portion of the base, and arranging an elastic assembly that cooperates with the gear slot in each guide cylindrical tube, when the knob bracket slides up and down, the bullet head in the elastic assembly, under the action of the compression spring, changes with the position of the gear slot, thereby generating a switch feel and bringing a good user experience to customers.

Description

Technical Field

[0001] The present invention relates to the field of control switches and relates to a pull - press knob switch. Background Art

[0002] With the continuous update of science and technology and people's pursuit of the quality of life, traditional household appliances require a simple and fashionable appearance, forcing higher and higher electronic integration, especially in switch control. Most of the existing circular knob switches are a commonly used switch control product, and are applied to products such as treadmills, rowing machines, household appliances, smart homes, automotive air - conditioner controllers, etc. By rotating the knob or pressing the button inside the knob, signals are transmitted to the circuit board to achieve functions such as adjusting the position and direction of the device, turning on or off. Since the push - button knob switch has many internal parts and a complex overall structure, it is inconvenient for installation and processing, with high production costs. At the same time, the pressing structure of the part with a screen in the middle often shows obvious shaking, affecting the control stability and reducing the user experience. Summary of the Invention

[0003] (1) Technical problems to be solved by the present invention

[0004] In order to solve the above - mentioned deficiencies in the prior art, the present invention provides a pull - press knob switch. By providing a gear slot that can be pulled up and pressed down on the outer circumferential surface of the sleeved part of the knob bracket, and providing a number of radially - extending guide cylindrical tubes along the circumferential direction on the outer wall of the base cylindrical part, and providing an elastic component that cooperates with the gear slot in each guide cylindrical tube, when the knob bracket slides up and down, the bullet head in the elastic component, under the action of the compression spring, changes with the position of the gear slot, thereby generating a switch feel and bringing a good user experience to customers.

[0005] (2) Technical solutions adopted by the present invention to solve the technical problems are specifically as follows:

[0006] A pull - press knob switch, comprising a base, a pull - press rotation assembly, an elastic component, a plug - in circuit board, and an encoder, characterized in that:

[0007] -- The base includes a base housing with an open bottom and a receiving space, and a cylindrical part formed at the center of the top surface of the base housing, and the bottom opening of the cylindrical part is communicated with the receiving space of the base housing;

[0008] On the outer wall of the cylindrical part, a number of guiding cylindrical tubes extending radially along its circumferential direction are provided. Each of the guiding cylindrical tubes is provided with one of the elastic components. Each of the elastic components includes a bullet head, a spring and a plug. The plug is fixedly arranged at the outer end of the guiding cylindrical tube. The spring is arranged between the bullet head and the plug. Under the action of the elastic force of the spring, the head of the bullet head extends into the inner cavity of the cylindrical part;

[0009] -- The plug-in circuit board is assembled and fixed in the base housing of the base;

[0010] -- The encoder is fixedly arranged on the plug-in circuit board and is electrically connected to the plug-in circuit board. It includes a rotatable annular cylinder body. The annular cylinder body is concentrically arranged in the cylindrical part of the base. The annular cylinder body rotates to different circumferential positions to generate different position signals and transmits the position signals to the plug-in circuit board;

[0011] -- The tension and compression rotation assembly at least includes a decorative knob ring, a button cover plate, a knob bracket and a rotation bracket, wherein,

[0012] The rotation bracket is an integral cylindrical component and is fixedly sleeved on the outer circular surface of the annular cylinder body of the encoder;

[0013] The knob bracket includes a sleeved part and an annular installation part formed at the upper end of the sleeved part and having an upward flanging at the radial outer edge. The sleeved part is slidably sleeved between the inner wall of the cylindrical part of the base and the outer circular surface of the rotation bracket. A plurality of annular gear grooves are provided on the outer circular surface of the sleeved part along the height direction. The head of the bullet head in each of the elastic components extends into the annular gear groove. When the sleeved part slides up and down, the head of the bullet head can slide along the annular gear groove on the outer circular surface of the sleeved part;

[0014] The button cover plate is an integral cover plate with a downward flanging. The button cover plate is sleeved and installed on the outer wall of the upward flanging of the annular installation part of the knob bracket through its downward flanging; the decorative knob ring is fixedly arranged on the outer wall of the downward flanging of the button cover plate.

[0015] The working principle of the pull-press knob switch of the present invention is as follows: when the button cover plate is rotated through the decorative knob ring, the pull-press assembly rotates together therewith, and then drives the annular cylinder of the encoder to rotate therewith. The annular cylinder rotates to different circumferential positions to generate different position signals, and transmits the position signals to the plug-in circuit board; when the button cover plate is forced to move up and down, it drives the knob bracket and the slider to move up and down along the outer wall of the annular cylinder of the rotating bracket together. Under the action of the compression spring, the bullet head in the elastic component changes with the position change of the gear slot, thereby generating a switch feel and bringing a good user experience to customers.

[0016] Preferably, a cover plate is assembled and arranged at the bottom opening of the base.

[0017] Preferably, at least an LED light source assembly and a Hall device are arranged in the annular area of the annular cylinder of the encoder. The LED light source assembly and the Hall device are fixedly arranged on the plug-in circuit board in an electrically connected manner; the pull-press knob switch further includes a follower assembly, and the follower assembly at least includes a light blocking body, a light guide body, a screen assembly and a slider, wherein,

[0018] The slider includes a first insertion part and a first disc-shaped mounting part formed at the upper end of the first insertion part. The first insertion part is inserted into the annular cylinder of the encoder in a vertically slidable manner, and a plurality of inwardly extending protrusions are formed on the inner wall of the lower end of the first insertion part. A magnetic element is correspondingly arranged on each protrusion. When the slider slides up and down, each magnetic element moves up and down therewith to change the magnetic field magnitude above the Hall device, and the Hall device determines the switch position through the magnetic field change;

[0019] The light guide body includes a second insertion part and a second disc-shaped mounting part formed at the upper end of the second insertion part and having an upward flanging at the radial outer edge. The second insertion part is fixedly inserted into the first insertion part, and the second disc-shaped mounting part is fixedly attached to the first disc-shaped mounting part;

[0020] The light blocking body includes a third insertion part and a mounting panel formed at the upper end of the third insertion part. The third insertion part is fixedly inserted into the second insertion part, the mounting panel is fixedly attached to the second disc-shaped mounting part, and a screen mounting groove is arranged on the top surface of the mounting panel;

[0021] The screen assembly includes a screen panel, and the screen panel is adaptively installed in the screen mounting groove on the mounting panel of the light blocking body and is electrically connected to the plug-in circuit board.

[0022] Further, the area of the button cover plate facing the screen panel is set as a light-transmitting display area, and the area of the button cover plate facing the top surface of the flange of the second disc-shaped mounting portion of the light guide is set as a light-transmitting aperture, and other areas are light-impermeable. When the button cover plate moves up and down under force, under the action of the magnetic element at the lower end of the slider, the corresponding Hall device on the plug-in circuit board is turned on. At this time, the LED light source assembly is in a lighting state under the control of the plug-in circuit board. The light emitted by the LED light source assembly enters the annular cylinder of the encoder. Under the action of the light-blocking body, the light is guided along the light guide and emitted from the aperture of the button cover plate to form a breathing light; and at this time, the plug-in circuit board outputs the position signal generated by the encoder to the screen assembly.

[0023] Preferably, the inner wall of the lower flange of the button cover plate is installed on the outer wall of the upper flange of the annular mounting portion of the knob bracket through the cooperation of a buckle and a rib structure.

[0024] Preferably, the bullet head of the elastic component cooperates with the gear position groove on the outer surface of the sleeved portion of the knob bracket. When the knob bracket slides up and down under force, the gear position groove squeezes the elastic component to move through its gear position change to generate a gear position sense of up and down of the switch. When the knob bracket is not under force, the elastic force of the elastic component makes the knob bracket stable in a fixed position.

[0025] Preferably, the outer periphery of the lower end of the first insertion portion of the slider is in three-section partitioned cooperation with the guide groove provided on the inner hole wall of the annular cylinder of the encoder, including an upper section, a middle section, and a lower section, where: in the upper section and the lower section, the ribs on the slider and the guide groove on the encoder are vertically matched; in the middle section, the ribs on the slider and the guide groove on the encoder are inclinedly matched.

[0026] Preferably, the screen panel of the screen assembly is pasted in the screen installation groove on the installation panel of the light-blocking body through a double-sided adhesive component.

[0027] Preferably, the follower assembly moves up and down with the knob bracket between the button cover plate and the knob bracket without rotating. A circular rib is provided between the aperture and the display area on the button cover plate. A groove is provided on the upper end surface of the installation panel of the light-blocking body. The circular rib and the groove are in frictional movement. A circle of uniformly distributed elastic protrusions is provided in the upper plane of the knob bracket and is in elastic contact with the lower plane of the slider.

[0028] Preferably, the rotating bracket is tightly sleeved on the outer circular surface of the annular cylinder of the encoder through a buckle structure.

[0029] Preferably, a plurality of elastic components are evenly arranged on the base guiding cylinder, and the plug-in circuit board is fixed through bolts and positioning columns.

[0030] (3) Compared with the prior art, the beneficial technical effects of the present invention

[0031] The pull-press knob switch provided by the present invention has a simple and fashionable appearance, high integration, and is easy to clean; at the same time, the use of Hall devices greatly enhances the service life of the product, and the use of the gear position groove structure design provides a feel for the pull-press structure, greatly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the overall structural schematic diagram of the pull-press knob switch of the present invention;

[0033] Figure 2 is the exploded structural schematic diagram of the pull-press knob switch of the present invention;

[0034] Figure 3 is the cross-sectional structural view of the pull-press knob switch of the present invention;

[0035] Figure 4 is the schematic diagram of the breathing light and display area in the pull-press knob switch of the present invention.

[0036] Figure 5 is the schematic diagram of the internal structure of the button in the pull-press knob switch of the present invention.

[0037] Figure 6 is the schematic diagram of the light shielding body structure in the pull-press knob switch of the present invention.

[0038] Figure 7 is the schematic diagram of the knob bracket structure in the pull-press knob switch of the present invention.

[0039] Description of the reference numerals:

[0040] Decorative knob ring 1, button cover plate 2, screen assembly 3, double-sided adhesive part 4, light shielding body 5, light guide body 6, slider 7, knob bracket 8, rotating bracket 9, base 10, magnetic element 11, plug-in circuit board 12, encoder 12-1, screw 13, cover plate 14, bullet head 15, spring 16, plug cover 17. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the following examples are given with reference to the accompanying drawings to further elaborate on the present invention. It should be noted that the implementation manners not depicted or described in the drawings are in the forms known to those of ordinary skill in the art in the relevant technical field.

[0042] As Figures 1-7As shown in the figure, the waterproof push-button rotary switch of the present invention includes a base 10, a cover plate 14, a light guide 6, a button cover plate 2, a rotary knob bracket 8, a pulling and pressing rotary assembly, a follower assembly, an elastic assembly, a screen assembly 3, a magnetic element 11, and a plug-in circuit board 12. The plug-in circuit board 12 is assembled and arranged in the base 10, the cover plate 14 is assembled and arranged at the lower part of the base 11, and the screen assembly 3 is electrically connected to the plug-in circuit board 12 through an electrical performance flexible cable; the rotary bracket 9 is rotatably arranged on the encoder 12-1, the rotary knob bracket 8 is arranged on the rotary bracket 9, the button 2 is arranged on the rotary knob bracket 8, and the pulling and pressing assembly can slide up and down in the rotary bracket 9 and rotate synchronously with the rotation of the rotary bracket 9; among them, the encoder 12-1 is fixedly arranged on the plug-in circuit board 12 and is electrically connected to the plug-in circuit board 12, and includes a rotatable annular cylinder body. The annular cylinder body generates different position signals when rotating to different circumferential positions and transmits the position signals to the plug-in circuit board 11; at least an LED light source assembly and a Hall device are also arranged in the annular area of the annular cylinder body. They are fixedly arranged on the plug-in circuit board 12 in an electrically connected manner. When the magnetic element 11 moves with the slider 7, the magnetic field above the Hall device changes, and the corresponding switch on the plug-in circuit board 12 is turned on by the change of the magnetic field.

[0043] In the pulling and pressing rotary switch of the present invention, the base 10 includes a base shell with a bottom opening and a receiving space, and a cylindrical part formed at the center of the top surface of the base shell. The bottom opening of the cylindrical part is communicated with the receiving space of the base shell; a plurality of radially extending guide cylindrical tubes are arranged along the circumferential direction on the outer wall of the cylindrical part. Each guide cylindrical tube is provided with a set of elastic components. Each elastic component includes a bullet head 15, a spring 16, and a plug 17. The spring 16 is arranged between the bullet head 15 and the plug 17. Under the action of the spring 16, the head of the bullet head 15 extends into the inner cavity of the cylindrical part.

[0044] The follower assembly includes a light blocking body 5, a light guide body 6, a screen assembly 3, and a slider 7. The slider 7 includes a first insertion portion and a first disc-shaped mounting portion formed at the upper end of the first insertion portion. The first insertion portion is inserted into the annular cylinder of the encoder 11-1 in a vertically slidable manner, and an inwardly concave groove is formed on the inner wall of the lower end of the first insertion portion for placing the magnetic element 11. When the follower assembly slides up and down with the pulling and pressing assembly, the magnetic element 11 also moves up and down. The light guide body 6 includes a second insertion portion and a second disc-shaped mounting portion formed at the upper end of the second insertion portion with an upward flanging at the radial outer edge. The light guide body 6 is integrally seated in the slider 7. The second insertion portion is fixedly inserted into the first insertion portion, and the second disc-shaped mounting portion is abutted and fixed in the first disc-shaped mounting portion. The light blocking body 5 includes a third insertion portion and a mounting panel formed at the upper end of the third insertion portion. The light blocking body 5 is integrally seated in the light guide body 6. The third insertion portion is fixedly inserted into the second insertion portion, the mounting panel is abutted and fixed in the second disc-shaped mounting portion, and a screen mounting groove is provided on the top surface of the mounting panel. The screen assembly 3 includes a screen panel and an electrical performance flexible cable connected to the screen panel. The screen panel is adaptively mounted in the screen mounting groove on the mounting panel of the light blocking body 5, and the electrical performance flexible cable passes through the mounting panel of the light blocking body 5 and is electrically connected to the plug-in circuit board 11.

[0045] In the pull-press knob switch of the present invention, the pull-press assembly includes a decorative knob collar 1, a button cover plate 2, and a knob bracket 8. The knob bracket 8 includes a sleeved portion and a ring-shaped mounting portion formed at the upper end of the sleeved portion with an upward flanging at the radial outer edge. The sleeved portion is slidably sleeved on the outer circumferential surface of the annular cylinder of the rotary bracket 9. A circle of gear positions grooves is provided on the outer circumferential surface of the sleeved portion. The upper and lower parts of the gear positions grooves are closely fitted with the cylinder on the base 10 and can slide up and down. The upward flanging of the ring-shaped mounting portion is snap-fixed and assembled with the button cover plate 2. The components of the follower assembly between the button cover plate 2 and the knob bracket 8 are arranged in a non-interfering manner in terms of structure. The button cover plate 2 is a whole cover plate with a downward flanging. The button cover plate 2 is inserted and mounted on the outer wall of the upward flanging of the ring-shaped mounting portion of the knob bracket 8 through its downward flanging. The decorative knob collar 1 is fixedly arranged on the outer wall of the downward flanging of the button cover plate 2. After installation, the convex rib 2-1 on the bottom surface of the button cover plate 2 presses in the top surface groove 5-1 of the mounting panel of the light blocking body 5. The area of the button cover plate 2 facing the screen panel is set as a light-transmitting display area, and the area of the button cover plate 2 facing the top surface of the flanging of the second disc-shaped mounting portion of the light guide body 6 is set as a light-transmitting aperture, and other areas are not light-transmitting.

[0046] In the push-pull rotary switch of the present invention, when the key cover plate 2 is rotated by the decorative knob ferrule 1, the push-pull assembly rotates together, and then drives the annular cylinder body of the encoder 12-1 to rotate. The annular cylinder body rotates to different circumferential positions to generate different position signals, and the position signals are transmitted to the plug-in circuit board 11. When the key cover plate 2 moves up and down under force, it drives the knob bracket 8, the screen assembly 3, the light shielding body 5, the light guide body 6, the slider 7, and the magnetic element 11 to move up and down along the inner hole wall of the annular cylinder body of the rotary bracket 9. Under the action of the magnetic element 11, the corresponding Hall device on the plug-in circuit board 12 is in contact conduction. At this time, the LED light source assembly is in a lighting state under the control of the plug-in circuit board 12. The light emitted by the LED light source assembly enters the annular cylinder body of the encoder 12-1. Under the action of the light shielding body 5, the light is guided along the light guide body 6 and emitted from the aperture of the key cover plate 2 to form a breathing light. And at this time, the plug-in circuit board 12 outputs the position signal generated by the encoder 12-1 to the screen assembly 3 through the electrical performance cable.

[0047] In the push-pull rotary switch of the present invention, the elastic assembly includes a bullet head 15, a spring 16, and a plug 17. The base 10 includes a bottom plug-in circuit board mounting position and a guide cylinder for mounting the elastic assembly.

[0048] More specifically, referring to Figures 1-7 , in the push-pull rotary switch of the present invention, an encoder 12-1, a control ic, and resistors and capacitors are arranged on the plug-in circuit board 12. LEDs and Hall devices are arranged at the inner hole position of the encoder for providing light sources for the breathing aperture and push-pull switch signals.

[0049] The push-pull assembly includes a decorative knob ferrule 1, a key cover plate 2, and a knob bracket 8. The decorative knob ferrule 1 is fixed to the key cover plate 2 by a buckle. The outer circle of the gear position groove of the sleeved part of the knob bracket 8 can slide up and down and rotate along the inner wall of the upper cylinder of the base 10, and the inner circle of the sleeved part slides up and down in the outer circle groove of the knob bracket 9. The rotary bracket 9 is tightly connected to the outer circle of the encoder by three buckles, and drives the encoder 12-1 to rotate through the rotary bracket 9 to achieve the adjustment function.

[0050] The follower assembly includes a light-blocking body 5, a light guide body 6, a screen assembly 3, and a slider 7. The design of the light guide body 6 takes into account the design of uniform light guiding. Then, through an anti-fooling structure and an interference fit, it is arranged inside the slider 7 to prevent the light guide body 6 from shaking. The light-blocking body 5 is arranged inside the light guide body and is tightly connected to the slider 7 through a buckle. The inner groove at the upper end of the light-blocking body 5 fixes the screen assembly 3 through a double-sided adhesive component 4, so as to ensure that the entire follower assembly is an integral whole. The hollow structure of the follower assembly facilitates the passing of the wiring of the screen assembly 3. The follower assembly is arranged between the button cover plate 2 and the knob bracket 8. A circle of evenly distributed elastic protrusions 8-1 is arranged inside the knob bracket 8, which contacts the lower plane of the slider 7 of the follower assembly. The rib 2-1 inside the button cover plate 2 presses the light-blocking body 5 of the follower assembly to ensure that the follower assembly does not shake inside the pulling and pressing assembly. After installing the knob bracket 8, the follower assembly is assembled into the encoder 12-1 of the plug-in circuit board. The outer circumference of the lower end of the slider 7 is in sectional cooperation with the slots arranged on the inner hole wall of the encoder 12-1 through evenly arranged ribs. In the upper and lower sections of the section, the ribs on the slider 7 and the slots on the encoder 12-1 are vertically matched, and in the middle section, the ribs on the slider 7 and the slots on the encoder 12-1 are inclinedly matched, so as to ensure that the entire follower assembly can slide up and down inside the encoder 12-1. The screen assembly 3 is electrically connected to the plug-in circuit board 12.

[0051] Three groups of elastic components are assembled on the base 10. The warhead 15 is matched with the warhead hole on the base 10. Through the elastic force of the spring 16 and the plug 17, the warhead 15 is always in close contact with the gear position groove 8-2 on the outer circle of the sleeved part of the knob bracket 8 and can slide relative to each other. Specifically, by changing the positions of the upper pull gear position groove 8-2 and the lower press gear position groove 8-2 arranged on the outer circle of the sleeved part of the knob bracket 8, the compression amount of the spring 16 compressed by the warhead 15 changes, thereby generating the switch feel.

[0052] When the pulling and pressing assembly moves up and down, it drives the follower assembly and the magnetic element 11 installed at the lower end of the slider 7 to move up and down, causing the magnetic field above the Hall device on the plug-in circuit board 12 to change. Different signal amounts are generated by the Hall device through the magnetic field change, thereby realizing the switch function.

[0053] The surface of the button cover plate 2 is treated so that only the display area and the aperture can transmit light through the spraying and laser engraving process. The structure of the button cover plate 2 refers to Figure 5 As shown, a circular rib 2-1 is arranged between the screen display and the aperture inside it and contacts the groove of the light-blocking body 5 on the follower assembly. The follower assembly makes the button 2 always in contact with the follower assembly through the elastic force of the elastic protrusion 8-1 of the knob bracket 8. The ribs at the lower end of the slider 7 of the follower assembly are inserted into the rib grooves of the inner hole of the encoder, so as to ensure that the pulling and pressing assembly can only drive the follower assembly to slide up and down and cannot rotate with the pulling and pressing assembly.

[0054] In summary, the pull - press function of the rotary switch with built - in breathing light and display is realized. At the same time, non - contact Hall devices are used, which ensures the performance of the product and improves the service life and safety of the rotary switch. At the same time, the structural design of the whole product is very reasonable and compact. Each component plays multiple roles, reducing the number of components and saving costs.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the present invention.

Claims

1. A pull-press knob switch, comprising a base (10), a pull-press rotation assembly, an elastic assembly, a plug-in circuit board (12), and an encoder (12-1). Characterized in that: The base (10) includes a base housing with an open bottom and a receiving space, and a cylindrical portion formed at the center of the top surface of the base housing, and the bottom opening of the cylindrical portion communicates with the receiving space of the base housing; On the outer wall of the cylindrical portion, a plurality of radially extending guiding cylindrical tubes are provided along its circumference. Each guiding cylindrical tube is provided with an elastic assembly. Each elastic assembly includes a bullet head (15), a spring (16), and a plug (17). The plug (17) is fixedly arranged at the outer end of the guiding cylindrical tube. The spring (16) is arranged between the bullet head (15) and the plug (17). Under the elastic force of the spring (16), the head of the bullet head (15) extends into the inner cavity of the cylindrical portion; The plug-in circuit board (12) is assembled and fixed in the base housing of the base (10); The encoder (12-1) is fixedly arranged on the plug-in circuit board (12) and is electrically connected to the plug-in circuit board (12). It includes a rotatable annular cylinder body, and the annular cylinder body is concentrically arranged in the cylindrical portion of the base (10). When the annular cylinder body rotates to different circumferential positions, different position signals are generated and transmitted to the plug-in circuit board (12); The pull-press rotation assembly at least includes a decorative knob sleeve (1), a button cover plate (2), a knob bracket (8), and a rotation bracket (9). Among them, The rotation bracket (9) is an integral cylindrical component and is fixedly sleeved on the outer circular surface of the annular cylinder body of the encoder (12-1); The knob bracket (8) includes a sleeving portion and an annular mounting portion formed at the upper end of the sleeving portion and having an upward flanging at the radial outer edge. The sleeving portion is slidably sleeved between the inner wall of the cylindrical portion of the base (10) and the outer circular surface of the rotation bracket (9). A plurality of annular gear grooves (8-2) are provided on the outer circular surface of the sleeving portion along the height direction. The head of the bullet head (15) in each elastic assembly extends into the annular gear groove (8-2). When the sleeving portion slides up and down, the head of the bullet head (15) can slide along the annular gear groove (8-2) on the outer circular surface of the sleeving portion; The button cover plate (2) is an integral cover plate with a downward flanging. The button cover plate (2) is sleeved and installed on the outer wall of the upward flanging of the annular mounting portion of the knob bracket (8) through its downward flanging; the decorative knob sleeve (1) is fixedly arranged on the outer wall of the downward flanging of the button cover plate (2); And among them, At least an LED light source assembly and a Hall device are arranged in the annular region of the annular cylinder of the encoder (12-1), and the LED light source assembly and the Hall device are fixedly arranged on the plug-in circuit board (12) in an electrically connected manner; the push-pull rotary switch further includes a follower assembly, and the follower assembly at least includes a light-blocking body (5), a light guide body (6), a screen assembly (3) and a slider (7), wherein, The slider (7) includes a first insertion portion and a first disc-shaped mounting portion formed at the upper end of the first insertion portion. Wherein, the first insertion portion is inserted into the annular cylinder of the encoder (12-1) in a vertically slidable manner, and a plurality of inwardly extending protrusions are formed on the inner wall of the lower end of the first insertion portion, and a magnetic element (11) is correspondingly arranged on each protrusion. When the slider (7) slides up and down, each magnetic element (11) moves up and down accordingly to change the magnetic field magnitude above the Hall device, and the Hall device determines the switch position through the magnetic field change; The light guide body (6) includes a second insertion portion and a second disc-shaped mounting portion formed at the upper end of the second insertion portion and having an upward flanging at the radial outer edge. Wherein, the second insertion portion is fixedly inserted into the first insertion portion, and the second disc-shaped mounting portion is fixedly attached to the first disc-shaped mounting portion; The light-blocking body (5) includes a third insertion portion and a mounting panel formed at the upper end of the third insertion portion. Wherein, the third insertion portion is fixedly inserted into the second insertion portion, the mounting panel is fixedly attached to the second disc-shaped mounting portion, and a screen mounting groove is arranged on the top surface of the mounting panel; The screen assembly (3) includes a screen panel, and the screen panel is adaptively mounted in the screen mounting groove on the mounting panel of the light-blocking body (5) and is electrically connected to the plug-in circuit board (12).

2. The push-pull rotary switch according to claim 1, characterized in that: A cover plate (14) is assembled and arranged at the bottom opening of the base (10).

3. The push-pull rotary switch according to claim 1, characterized in that: The area of the key cover plate (2) facing the screen panel is set as a light-transmitting display area, and the area of the key cover plate (2) facing the flanging top surface of the second disc-shaped mounting portion of the light guide body (6) is set as a light-transmitting aperture, and other areas are light-impermeable.

4. The push-pull rotary switch according to claim 1, characterized in that: The inner wall of the downward flanging of the key cover plate (2) is installed on the outer wall of the upward flanging of the annular mounting portion of the knob bracket (8) through a snap and rib structure.

5. The push-pull rotary switch according to claim 1, characterized in that: When the follower component moves up and down with the knob bracket (8) between the button cover plate (2) and the knob bracket, it does not rotate. A circular rib (2-1) is provided between the aperture on the button cover plate (2) and the display area. A groove (5-1) is provided on the upper end surface of the mounting panel of the light blocking body (5). The circular rib and the groove are in frictional movement in cooperation. A circle of evenly distributed elastic bosses (8-1) is provided in the upper plane of the knob bracket (8) and is in elastic contact with the lower plane of the slider (7).

6. The pull-press knob switch according to claim 1, characterized in that: The rotary bracket (9) is tightly sleeved on the outer circumferential surface of the annular cylinder of the encoder (12-1) through a snap structure.

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