Telescopic knob

Abstract

The telescopic knob comprises an outer cover, a shell and a pressing assembly, the pressing assembly comprises a control button and a pressing core, the pressing core comprises a fixing ring and a shaft core, a reset spring is arranged between the shaft core and the fixing ring or the control button, and a sliding groove table protruding in the radial direction is fixed to the arc face of the outer side of the fixing ring. A left sliding groove, a right sliding groove and a middle sliding groove are formed in the surface of the sliding groove table and connected, sliding rods are arranged in the left sliding groove, the right sliding groove and the middle sliding groove, and the sliding rods and the shaft core are fixed together through a connecting rod mechanism. According to the utility model, the plurality of steps are arranged, so that the limitation of the sliding track of the sliding rod is realized, the sliding rod can generate an auditory signal and a tactile signal when the sliding chute is switched, the state of the switch can be clearly transmitted to a user, and meanwhile, the auditory signal and the tactile signal can be transmitted to special crowds such as blind people and the like; and the use of the users is facilitated.

Description

Technical Field

[0001] This utility model relates to a telescopic knob. Background Technology

[0002] Currently, the telescopic knobs for electric ovens available on the market and in published materials consist of a button and a housing. The main body of the telescopic knob is exposed outside the oven, and the housing has slots or buckles that match the thickness of the main panel. This design secures the telescopic knob to the main panel. However, in actual use, these telescopic knobs have the following drawbacks: 1) When the button is pressed to close the switch, the lack of obvious visual, tactile, or auditory signals makes it difficult for unfamiliar users to accurately determine whether the button has been pressed. Furthermore, for blind users, the lack of tactile and auditory signals for button activation renders conventional telescopic knobs unusable; 2) Poor concentricity between the housing and the button assembly significantly affects the lifespan. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a telescopic knob, which effectively solves the problems mentioned in the background art.

[0004] The technical solution adopted in this utility model is:

[0005] A telescopic knob includes an outer cover, a housing, and a pressing assembly disposed within the housing. The outer cover and housing are fixed together by a threaded connection. The pressing assembly includes a control button and a pressing core disposed inside the control button. The pressing core includes a retaining ring fixed to the control button and a shaft disposed within the retaining ring. A return spring is provided between the shaft and the retaining ring or the control button. A radially protruding sliding groove is fixed on the outer arc surface of the retaining ring. The surface of the sliding groove has a left sliding groove and a right sliding groove. The lower ends of the left and right sliding grooves are directly connected, and the upper ends are connected via an intermediate sliding groove. The grooves are connected, and steps are provided between the lower ends of the left and right slide grooves, between the upper ends of the right and middle slide grooves, and between the left and left slide grooves. The steps decrease in a clockwise or counterclockwise direction. A boss is formed at the center of the left, right, and middle slide grooves. A groove is provided on the side of the boss facing the control button. A guide step is provided in the middle of the middle slide groove. The guide step decreases in a clockwise or counterclockwise direction. A sliding rod is provided in the left, right, and middle slide grooves. The sliding rod is fixed to the shaft core by a linkage mechanism.

[0006] Preferably, the linkage mechanism includes an axial connecting rod fixed axially to the outside of the slide table, and a connecting rod bracket that fixes the axial connecting rod to the lower end of the shaft core.

[0007] Preferably, the lower part of the slide table is provided with a sliding groove, the upper end of which is connected to the left slide or the right slide, and the lower end extends through to the bottom of the slide table.

[0008] The sliding groove design allows the sliding rod to slide into the slide table from below along the sliding groove when the fixing ring and shaft are assembled.

[0009] Preferably, the top of the shaft is provided with a spring mounting hole, the inner side of the control button is fixed with a positioning boss that matches the spring mounting hole, and the reset spring is disposed in the gap between the positioning boss and the spring mounting hole.

[0010] The return spring is installed by using the gap between the positioning boss and the spring mounting hole, which ensures accurate installation of the return spring. Furthermore, the return spring will not bend when it contracts due to internal and external constraints, making the installation of the return spring more reasonable and extending its service life.

[0011] Preferably, the inner side of the control button is fixed with a plurality of circumferentially distributed buckles, and the upper outer side of the fixing ring is fixed with a retaining ring that matches the buckles.

[0012] The control button is secured to the retaining ring via clips and retaining rings, making installation easy.

[0013] Preferably, the inner side of the fixing ring is provided with a plurality of guide grooves along the axial direction, and the outer side of the shaft core is fixed with a guide slider that matches the guide grooves.

[0014] The fixed ring and the shaft core slide against each other in the axial direction through the cooperation of the guide slider and the guide groove, while also achieving circumferential positioning, and no relative rotation occurs during sliding.

[0015] The center of the shaft core of this utility model is the mounting hole for the actuator, which is installed inside to realize the switching on and off.

[0016] This invention, by setting multiple steps, not only limits the sliding trajectory of the sliding rod, but also generates auditory and tactile signals when the sliding rod switches slides, which can clearly convey the status of the switch to the user. At the same time, the auditory and tactile signals can be transmitted to special groups such as the blind, making it easier for these users to use.

[0017] The sliding rod of this utility model is fixed by a linkage mechanism. After assembly, since the linkage mechanism is separated from the inner wall of the control button, the concentricity can be improved. The improved concentricity makes it easier to reduce the gap between the control button and the housing, thus improving the aesthetics. Currently, conventional structures have a lower concentricity, and the gap between the control button and the housing is usually larger to avoid the pressing component from being blocked. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 2 This is a longitudinal sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the pressing component;

[0021] Figure 4 This is a schematic diagram of the structure inside the control button;

[0022] Figure 5 This is a schematic diagram of the pressing core structure;

[0023] Figure 6 This is a schematic diagram of the fixed ring structure;

[0024] Figure 7 This is a schematic diagram of the shaft core. Detailed Implementation

[0025] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Furthermore, in the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0032] like Figure 1-7As shown, a telescopic knob includes an outer cover 1, a housing 2, and a pressing assembly 3 disposed within the housing 2. The outer cover 1 and the housing 2 are fixed together by a threaded connection. The pressing assembly 3 includes a control button 31 and a pressing core 32 disposed inside the control button 31. The pressing core 32 includes a retaining ring 321 fixed to the control button 31 and a shaft 322 disposed within the retaining ring 321. The shaft 322 is connected to the retaining ring 321 or the control button. A return spring 323 is provided between 31. A radially protruding sliding platform 324 is fixed on the outer arc surface of the fixing ring 321. The surface of the sliding platform 324 is provided with a left sliding groove 325 and a right sliding groove 326. The lower ends of the left sliding groove 325 and the right sliding groove 326 are directly connected, and their upper ends are connected through a middle sliding groove 327. The lower ends of the left sliding groove 325 and the right sliding groove 326, the upper ends of the right sliding groove 326 and the right ends of the middle sliding groove 327, and the middle sliding groove 326 are connected. A step 328 is provided between the left end of 27 and the upper end of the left slide 325. The step 328 decreases in a clockwise or counterclockwise direction. In this embodiment, the step 328 decreases in a counterclockwise direction. The bottom surface of the left slide 325 is a slope, and the depth of the left slide 325 gradually decreases from top to bottom. A boss 329 is formed at the center of the left slide 325, the right slide 326, and the middle slide 327. The boss 329 has a groove 32 on the side facing the control button 31. 10. In this embodiment, the groove 3210 is a V-shaped groove, and the middle of the intermediate slide groove 327 is provided with a guide step 3211. The guide step 3211 decreases in a clockwise or counterclockwise direction. In this embodiment, the guide step 3211 decreases in a counterclockwise direction. The left slide groove 325, the right slide groove 326 and the intermediate slide groove 327 are provided with a sliding rod 3212. The sliding rod 3212 is fixed together with the shaft core 322 through the linkage mechanism 3213.

[0033] The linkage mechanism 3213 includes an axial connecting rod 32131 fixed axially to the outside of the slide table 324, and a connecting rod bracket 32132 that fixes the axial connecting rod 32131 to the lower end of the shaft core 322. The shaft core connecting rod 32131 has a certain elasticity in the lateral direction, which facilitates the sliding rod 3212 to slide in the left slide groove 325, the right slide groove 326 and the middle slide groove 327.

[0034] The lower part of the slide table 324 is provided with a sliding groove 3214. The upper end of the sliding groove 3214 is connected to the left slide 325 or the right slide 326, and the lower end extends through to the bottom of the slide table 324.

[0035] The top of the shaft core 322 is provided with a spring mounting hole 3215, and the inner side of the control button 31 is fixed with a positioning boss 311 that matches the spring mounting hole 3215. The reset spring 323 is disposed in the gap between the positioning boss 311 and the spring mounting hole 3215.

[0036] Multiple circumferentially distributed buckles 312 are fixed to the inner side of the control button 31, and a retaining ring 3216 matching the buckles 312 is fixed to the upper outer side of the fixing ring 321.

[0037] The inner side of the fixed ring 321 is provided with a plurality of guide grooves 3217 along the axial direction, and the outer side of the shaft core 322 is fixed with a guide slider 3218 that matches the guide grooves 3217.

[0038] This utility model's switch has two positions. A return spring is compressed and installed between the control button and the shaft, generating elastic force between them. When the switch is in use, the working principle of the sliding rod is as follows:

[0039] When the control button 31 pops out, the sliding rod 3212, under the elastic force of the return spring 323, is located in the groove 3210. If it is necessary to press the control button 31 back in, a pressing action can be performed. The specific principle is as follows: When the control button 31 is pressed, since the control button 31 is fixed together with the fixing ring 321, the shaft core 322 remains stationary during pressing, and the sliding platform 324 on the fixing ring 321 moves downwards. Correspondingly, the sliding rod 3212, guided by the guide step 3211, moves along the groove... When the middle slide 327 moves to the left, and the sliding rod 3212 slides past the step 328 between the left end of the middle slide 327 and the upper end of the left slide 325, tactile and auditory signals will be transmitted. At this time, the sliding rod 3212 has slid into the left slide 325 and can be released. After releasing, the sliding rod 3212 will move downward under the elastic force of the return spring 323 until it passes the step 328 between the lower end of the left slide 325 and the lower end of the right slide 326, and the sliding rod 3212 remains in the right slide 326. The lower part of the control button 31 is kept in the engaged state. If it is necessary to press the control button 31 to pop it out, a pressing action can be performed. The specific principle is as follows: When the control button 31 is pressed, since the control button 31 is fixed together with the fixing ring 321, the shaft core 322 remains stationary when pressed. The slide rail 324 on the fixing ring 321 moves downwards, and the sliding rod 3212 moves upwards along the right slide rail 326. When the sliding rod 3212 slides past the right end of the middle slide rail 327 and the right slide rail 326, the sliding rod 3212 moves upwards. When the upper step 328 is reached, tactile and auditory signals are transmitted. At this time, the sliding rod 3212 has slid into the middle groove 327 and can be released. After being released, the sliding rod 3212 will move towards the middle of the middle groove 327 under the elastic force of the return spring 323. When the sliding rod 3212 crosses the guide step 3211, it will also emit tactile and auditory signals. Finally, the sliding rod 3212 returns to the groove 3210 under the elastic force of the return spring 323, keeping the control button 31 in the pop-out state.

[0040] This invention not only emits tactile and audible signals when the switch is pressed to change gears, but also, due to the step design, reminds the user when to release the switch to avoid damage from excessive pressing. At the same time, the tactile and audible signals make the switch easier for blind people and other special groups to use.

[0041] Finally, it should be noted that the above examples are merely specific embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A telescoping knob characterized by, The utility model provides a press button, which comprises an outer cover (1), a shell (2) and a pressing assembly (3) arranged in the shell (2), the outer cover (1) is fixed with the shell (2) through thread rotation cooperation, the pressing assembly (3) comprises a control knob (31) and a pressing core (32) arranged in the inner side of the control knob (31), the pressing core (32) comprises a fixed ring (321) fixed with the control knob (31) and a shaft core (322) arranged in the fixed ring (321), a reset spring (323) is arranged between the shaft core (322) and the fixed ring (321) or the control knob (31), a radial convex sliding groove table (324) is fixed on the outer side arc surface of the fixed ring (321), a left sliding groove (325) and a right sliding groove (326) are formed in the surface of the sliding groove table (324), the lower end of the left sliding groove (325) and the right sliding groove (326) are directly connected, and the upper end is connected through an intermediate sliding groove (327), a step (328) is arranged between the lower end of the left sliding groove (325) and the lower end of the right sliding groove (326), between the upper end of the right sliding groove (326) and the right end of the intermediate sliding groove (327), and between the left end of the intermediate sliding groove (327) and the upper end of the left sliding groove (325), the step (328) is lowered along the clockwise or counterclockwise direction, the center of the left sliding groove (325), the right sliding groove (326) and the intermediate sliding groove (327) forms a convex platform (329), a recess (3210) is formed in the side of the convex platform (329) towards the control knob (31), a guide step (3211) is arranged in the middle of the intermediate sliding groove (327), the guide step (3211) is lowered along the clockwise or counterclockwise direction, a sliding rod (3212) is arranged in the left sliding groove (325), the right sliding groove (326) and the intermediate sliding groove (327), and the sliding rod (3212) is fixed with the shaft core (322) through a connecting rod mechanism (3213).

2. A telescoping knob as defined in claim 1, wherein, The connecting rod mechanism (3213) comprises an axial connecting rod (32131) fixed on the outer side of the sliding groove table (324) along the axial direction and a connecting rod support (32132) for fixing the axial connecting rod (32131) and the lower end of the shaft core (322) together.

3. A telescoping knob as defined in claim 2, wherein, A sliding-in groove (3214) is formed in the lower part of the sliding groove table (324), the upper end of the sliding-in groove (3214) is communicated with the left sliding groove (325) or the right sliding groove (326), and the lower end penetrates to the lower side of the sliding groove table (324).

4. A telescoping knob as defined in claim 1, wherein, A spring mounting hole (3215) is formed in the top of the shaft core (322), a positioning convex platform (311) matched with the spring mounting hole (3215) is fixed on the inner side of the control knob (31), and the reset spring (323) is arranged in the gap between the positioning convex platform (311) and the spring mounting hole (3215).

5. The telescoping knob of claim 1, wherein, A plurality of buckles (312) distributed in the circumferential direction are fixed on the inner side of the control knob (31), and a clasp (3216) matched with the buckle (312) is fixed on the upper outer side of the fixed ring (321).

6. A telescoping knob as defined in claim 1, wherein, The inner side of the fixed ring (321) is provided with a plurality of guide grooves (3217) in the axial direction, and the outer side of the shaft core (322) is fixed with guide sliders (3218) matched with the guide grooves (3217).

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