CN220256282U - Knob connection structure and egg boiler - Google Patents
Knob connection structure and egg boiler Download PDFInfo
- Publication number
- CN220256282U CN220256282U CN202321802307.4U CN202321802307U CN220256282U CN 220256282 U CN220256282 U CN 220256282U CN 202321802307 U CN202321802307 U CN 202321802307U CN 220256282 U CN220256282 U CN 220256282U
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- knob
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- limiting
- limiting structure
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- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008602 contraction Effects 0.000 abstract description 8
- 239000000243 solution Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model provides a knob connecting structure and an egg boiler, wherein the knob connecting structure comprises: a knob cover; the knob shaft is arranged in the knob cover and is used for being connected with the adjusting shaft; the first limiting structure is arranged on the knob shaft and is used for limiting and connecting with the shell. According to the utility model, the first limit structure is in limit connection with the shell, so that the knob formed by the knob cover and the knob shaft is connected with the shell through the knob shaft on the basis of the assembly connection of the knob shaft and the adjusting shaft, when the connecting structure between the knob shaft and the adjusting shaft fails due to expansion caused by heat and contraction caused by cold, the knob is not separated from the timer, namely, the knob shaft and the adjusting shaft are not separated due to expansion caused by heat and contraction caused by cold, and the safety is high.
Description
Technical Field
The utility model relates to the technical field of knob connecting structures, in particular to a knob connecting structure and an egg boiler.
Background
The knob is a common structure for adjusting in the existing electrical equipment, and the knob and the structure to be adjusted (adjusting shaft) are installed in a tight fit mode. For example, a timer provided in an egg boiler, the adjustment shaft of which extends outwardly through the housing of the egg boiler when assembled, and which is inserted in a knob provided on the outside of the housing, and which are in a tight fit. In use, the adjustment shaft of the timer is rotated by the knob to reduce the adjustment torque of the timer. However, the knob is deformed to a certain extent due to expansion and contraction when the external temperature changes, so that the tight-fit knob and the adjusting shaft have the risk of loosening and separating when in use.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a knob connecting structure, wherein a knob is connected with a shell through a knob shaft, so that the knob shaft and an adjusting shaft of a timer cannot be separated due to thermal expansion and cold contraction.
Another object of the present utility model is to provide an egg boiler, in which the timer and the knob are firmly assembled, and the safety is high.
The embodiment of the utility model is realized by the following technical scheme:
a knob connection structure, comprising: a knob cover; the knob shaft is arranged in the knob cover and is used for being connected with the adjusting shaft; the first limiting structure is arranged on the knob shaft and is used for limiting and connecting with the shell.
According to a preferred embodiment, the first limiting structure is arranged around the circumference of the knob shaft.
According to a preferred embodiment, the first limit structure extends radially outwardly of the knob shaft.
According to a preferred embodiment, the first limiting structure is an annular limiting groove formed on the knob shaft.
According to a preferred embodiment, the casing is provided with a through hole for penetrating the adjusting shaft, and a second limiting structure in limiting connection with the first limiting structure is arranged on the periphery of the through hole.
According to a preferred embodiment, the second limiting structure is arranged on the outer side wall of the casing; at least two second limit structures are arranged at intervals along the circumferential direction of the through hole; the second limiting structure comprises an elastic sheet arranged on the outer side wall of the shell, and the elastic sheet extends towards the knob cover; the elastic piece is provided with a hooking part extending inwards along the radial direction of the through hole; when the knob shaft is connected with the adjusting shaft, the first limiting structure is positioned on one side of the hooking part far away from the knob cover, and the projection of the first limiting structure in the axial direction of the knob shaft is at least partially overlapped with the projection of the hooking part in the axial direction of the knob shaft.
According to a preferred embodiment, a mounting surface is provided on a side of the first limiting structure remote from the knob cover, the mounting surface being inclined toward the knob cover.
According to a preferred embodiment, the end face of the rotary knob shaft facing the adjusting shaft is provided with an assembly hole for inserting the adjusting shaft.
According to a preferred embodiment, a first limiting plane is arranged on the peripheral side surface of the adjusting shaft, and a second limiting plane matched with the first limiting plane is arranged on the inner side wall of the assembly hole; when the adjusting shaft is inserted into the assembly hole, the first limiting plane is attached to the second limiting plane.
The utility model provides an egg boiler, includes casing, timer and foretell knob connection structure, the timer set up in the casing, the knob axle of timer passes the casing extends to outside the casing, the knob axle is connected to the regulating spindle.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
according to the utility model, the first limit structure is in limit connection with the shell, so that the knob formed by the knob cover and the knob shaft is connected with the shell through the knob shaft on the basis of the assembly connection of the knob shaft and the adjusting shaft, when the connecting structure between the knob shaft and the adjusting shaft fails due to expansion caused by heat and contraction caused by cold, the knob is not separated from the timer, namely, the knob shaft and the adjusting shaft are not separated due to expansion caused by heat and contraction caused by cold, and the safety is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a knob connection structure according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a knob connection structure according to an embodiment of the present utility model;
fig. 3 is a schematic perspective view of a housing and a knob of an egg boiler according to an embodiment of the present utility model.
Icon: 100. a timer; 101. an adjusting shaft; 102. a screw; 103. the first limiting plane; 200. a housing; 201. a second limit structure; 2011. an elastic sheet; 2012. a hooking part; 202. a through hole; 203. a guide structure; 300. a knob cover; 301. a knob shaft; 302. a first limit structure; 3021. a mounting surface; 303. and (5) assembling holes.
Detailed Description
For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1 to 3, a knob connecting structure includes a knob cover 300, a knob shaft 301 and a first limiting structure 302, wherein: the knob shaft 301 is coaxially disposed in the knob cover 300 and is used for being connected with the adjusting shaft 101; the first limiting structure 302 is disposed on the knob shaft 301 and is used for limiting connection with the casing 200. In this embodiment, in use, turning knob cover 300 causes knob shaft 301 to turn, thereby driving adjustment shaft 101 to turn. The first limiting structure 302 is in limiting connection with the casing 200, so that the knob formed by the knob cover 300 and the knob shaft 301 is connected with the casing 200 through the knob shaft 301 on the basis of assembling and connecting the knob shaft 301 and the adjusting shaft 101, and therefore the knob and the timer 100 are not separated when the connecting structure between the knob shaft 301 and the adjusting shaft 101 fails due to expansion and contraction, namely, the knob shaft 301 and the adjusting shaft 101 are not separated due to expansion and contraction, and the safety is high.
Further, the first limiting structure 302 is circumferentially looped along the knob shaft 301.
Specifically, in the present embodiment, the first limiting structure 302 extends radially outward of the knob shaft 301. As shown in fig. 3, a through hole 202 for penetrating the adjusting shaft 101 is provided on the casing 200, and a second limiting structure 201 in limiting connection with the first limiting structure 302 is provided on the peripheral side of the through hole 202. Further, the second limiting structure 201 is disposed on the outer side wall of the casing 200; at least two second limiting structures 201 are arranged at intervals along the circumferential direction of the through hole 202; the second limiting structure 201 includes an elastic piece 2011 disposed on an outer sidewall of the casing 200, and the elastic piece 2011 extends toward the knob cover 300; the elastic piece 2011 is provided with a hooking portion 2012 extending inward in the radial direction of the through hole 202; when the knob shaft 301 is connected to the adjusting shaft 101, the first limiting structure 302 is located on a side of the hook 2012 away from the knob cover 300, and the projection of the first limiting structure 302 in the axial direction of the knob shaft 301 is at least partially overlapped with the projection of the hook 2012 in the axial direction of the knob shaft 301.
As shown in fig. 1 and 2, the second limiting structure 201 is integrally injection molded with the casing 200. In use, the knob shaft 301 of the knob is aligned to the through hole 202, then the knob is moved in a direction towards the timer 100 so that the knob shaft 301 is located between the at least two second limiting structures 201, and when the first limiting structure 302 abuts against the hook portion 2012, the elastic piece 2011 is elastically bent and deformed outwards along the radial direction of the through hole 202 so that the first limiting structure 302 can follow the knob shaft 301 to move to one side of the hook portion 2012 far away from the knob cover 300, and at the moment, the elastic piece 2011 is reset so as to enable the hook portion 2012 shown in fig. 1 to cooperate with the first limiting structure 302 to limit the knob in the axial direction of the knob shaft 301.
In this embodiment, the number of the second limiting structures 201 is four. In other embodiments, the number of the second limiting structures 201 may be set as required, and is not particularly limited herein.
Further, in order to facilitate the assembly of the first limiting structure 302 and the second limiting structure 201, an assembling surface 3021 is disposed on a side, away from the knob cover 300, of the first limiting structure 302, and the assembling surface 3021 is disposed obliquely toward the knob cover 300. A guide structure 203 is provided on the hook 2012 toward the knob cover 300, and the guide structure 203 is an arc surface or an inclined surface. Specifically, as shown in fig. 1, the guide structure 203 is engaged with the mounting surface 3021, so that the first limiting structure 302 applies a force to the elastic piece 2011 radially outward of the through hole 202 when being inserted between the second limiting structures 201 in the axial direction of the knob shaft 301.
In other embodiments, the first limiting structure 302 may also be an annular limiting groove formed on the knob shaft 301. In use, the catch 2012 is at least partially inserted into the annular limiting groove.
As shown in fig. 2 and 3, the end face of the knob shaft 301 facing the adjustment shaft 101 is provided with an assembly hole 303 for inserting the adjustment shaft 101. Preferably, the fitting hole 303 is tightly fitted with the adjustment shaft 101.
Further, a first limiting plane 103 is arranged on the peripheral side surface of the adjusting shaft 101, and a second limiting plane matched with the first limiting plane 103 is arranged on the inner side wall of the assembly hole 303; when the adjusting shaft 101 is inserted into the assembly hole 303, the first limiting plane 103 is attached to the second limiting plane. The first limiting plane 103 here cooperates with the second limiting plane to limit the knob in the circumferential direction of the adjustment shaft 101, so that the knob can drive the adjustment shaft 101 when rotated.
The embodiment also provides an egg boiler, which comprises the casing 200, the timer 100 and the knob connecting structure, wherein the timer 100 is arranged in the casing 200 and fixedly installed with the casing 200 through the screw 102, the knob shaft 301 of the timer 100 extends out of the casing 200 through the casing 200, and the knob shaft 301 is connected to the adjusting shaft 101. The knob of the egg boiler has high stability and is not easy to separate from the timer 100.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (10)
1. A knob connecting structure, characterized by comprising:
a knob cover (300);
a knob shaft (301) disposed in the knob cover (300) and connected to the adjustment shaft (101);
the first limiting structure (302) is arranged on the knob shaft (301) and is used for limiting connection with the shell (200).
2. The knob connecting structure according to claim 1, wherein the first limiting structure (302) is looped along a circumference of the knob shaft (301).
3. The knob connecting structure according to claim 2, wherein the first limit structure (302) extends radially outwardly of the knob shaft (301).
4. The knob connecting structure according to claim 2, wherein the first limiting structure (302) is an annular limiting groove formed on the knob shaft (301).
5. The knob connecting structure according to claim 3 or 4, wherein a through hole (202) for penetrating the adjusting shaft (101) is provided in the casing (200), and a second limiting structure (201) in limiting connection with the first limiting structure (302) is provided on a peripheral side of the through hole (202).
6. The knob connecting structure according to claim 5, wherein the second limiting structure (201) is provided at an outer side wall of the casing (200);
at least two second limit structures (201) are arranged at intervals along the circumferential direction of the through hole (202);
the second limiting structure (201) comprises an elastic sheet (2011) arranged on the outer side wall of the casing (200), and the elastic sheet (2011) extends towards the knob cover (300);
a hooking portion (2012) extending inward in the radial direction of the through hole (202) is provided on the elastic piece (2011);
when the knob shaft (301) is connected with the adjusting shaft (101), the first limiting structure (302) is located on one side, far away from the knob cover (300), of the hooking portion (2012), and the projection of the first limiting structure (302) in the axial direction of the knob shaft (301) is at least partially overlapped with the projection of the hooking portion (2012) in the axial direction of the knob shaft (301).
7. The knob connecting structure according to claim 3, wherein an assembling surface (3021) is provided on a side of the first limiting structure (302) away from the knob cover (300), and the assembling surface (3021) is inclined toward the knob cover (300).
8. The knob connection structure according to claim 1, characterized in that an end face of the knob shaft (301) facing the adjustment shaft (101) is provided with an assembly hole (303) for inserting the adjustment shaft (101).
9. The knob connecting structure according to claim 8, wherein a first limit plane (103) is provided on a peripheral side surface of the adjusting shaft (101), and a second limit plane adapted to the first limit plane (103) is provided on an inner side wall of the fitting hole (303);
when the adjusting shaft (101) is inserted into the assembly hole (303), the first limiting plane (103) is attached to the second limiting plane.
10. Egg boiler, characterized by comprising a housing (200), a timer (100) and a knob connection structure according to any of claims 1-9, wherein the timer (100) is arranged in the housing (200), a knob shaft (301) of the timer (100) extends out of the housing (200) through the housing (200), and the knob shaft (301) is connected to the adjustment shaft (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321802307.4U CN220256282U (en) | 2023-07-10 | 2023-07-10 | Knob connection structure and egg boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321802307.4U CN220256282U (en) | 2023-07-10 | 2023-07-10 | Knob connection structure and egg boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220256282U true CN220256282U (en) | 2023-12-29 |
Family
ID=89303246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321802307.4U Active CN220256282U (en) | 2023-07-10 | 2023-07-10 | Knob connection structure and egg boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220256282U (en) |
-
2023
- 2023-07-10 CN CN202321802307.4U patent/CN220256282U/en active Active
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