CN215910832U - Anti-drop knob cap - Google Patents
Anti-drop knob cap Download PDFInfo
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- CN215910832U CN215910832U CN202121654748.5U CN202121654748U CN215910832U CN 215910832 U CN215910832 U CN 215910832U CN 202121654748 U CN202121654748 U CN 202121654748U CN 215910832 U CN215910832 U CN 215910832U
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- knob cap
- hole
- drop
- connecting shaft
- cap body
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Abstract
The utility model discloses an anti-drop knob cap, which is used for being assembled on a connecting shaft and is characterized by comprising the following components: the knob cap comprises a knob cap body (1), wherein the knob cap body (1) is provided with an assembling hole (2) matched with the connecting shaft, the assembling hole (2) and the connecting shaft can be limited relatively along the circumferential direction to prevent mutual rotation, the assembling hole (2) is a step hole, and the connecting shaft can be assembled in the assembling hole (2) in a limiting manner along the axial direction; the side surface of the knob cap main body (1) is provided with a mounting hole for assembling the ejector pin component, and the ejector pin component is abutted against the connecting shaft through the mounting hole. Through the spacing of pilot hole and connecting axle and the butt of thimble assembly to the connecting axle, realize guaranteeing the stability of connecting from two aspects, can effectively prevent not hard up, lead to the problem that the knob cap drops.
Description
Technical Field
The utility model relates to the technical field of electrical equipment, in particular to an anti-falling knob cap.
Background
The electrical technology is widely applied to various industries, and knob caps of related electrical equipment on a digital special instrument control system of a nuclear power station are required to be stably fixed under working conditions of earthquake, impact, vibration and the like.
At present, in the prior art, the knob cap is opened by reducing the knob cap, so that the opening of the knob cap and the cylindrical shaft of the encoder are in interference fit, and the knob cap is fixed on the encoder. But the knob cap is easy to loosen in the long-term use process, especially under the working conditions of earthquake, impact, vibration and the like, and the knob cap is directly caused to fall off.
Therefore, how to provide an anti-drop knob cap to ensure the stable fixation of the knob cap is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an anti-drop knob cap to ensure the stable fixation of the knob cap.
In order to achieve the purpose, the utility model provides the following technical scheme:
an anti-drop knob cap for being assembled on a connecting shaft, comprising:
the knob cap body is provided with an assembling hole matched with the connecting shaft, the assembling hole and the connecting shaft can be relatively limited along the circumferential direction to prevent mutual rotation, the assembling hole is a step hole, and the connecting shaft can be axially limited and assembled in the assembling hole;
the side surface of the knob cap main body is provided with a mounting hole for assembling the thimble assembly, and the thimble assembly is abutted against the connecting shaft through the mounting hole.
Preferably, in the anti-falling knob cap, the assembly hole is a rectangular hole, and the section of the connecting shaft is a rectangular surface.
Preferably, in the anti-falling knob cap, the assembly hole is an elliptical hole, and the section of the connecting shaft is elliptical.
Preferably, in the anti-falling knob cap, the assembly hole includes an arc section and a straight section connected to the arc section, and the connecting shaft is adapted to the assembly hole.
Preferably, in the above anti-falling knob cap, the thimble assembly includes two set screws respectively connected to the knob cap main body by threads.
Preferably, in the above anti-drop knob cap, two of the set screws are disposed opposite to each other in a radial direction of the knob cap body.
Preferably, in the anti-falling knob cap, a groove for installing an external surface sticker is arranged at an end of the knob cap body, and the external surface sticker is a PC piece.
Preferably, in the above anti-drop knob cap, the knob cap body is provided with an indication mark for indicating a rotation direction.
Preferably, in the anti-falling knob cap, a straight knurling is formed on an outer surface of the knob cap body.
Preferably, in the anti-falling knob cap, the knob cap body is an aluminum profile.
The utility model provides an anti-falling knob cap, which can ensure the connection stability from two aspects by limiting an assembly hole and a connecting shaft and abutting a thimble assembly on the connecting shaft, and can effectively prevent the problem that the knob cap falls off due to looseness.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a disassembled structural schematic view of the anti-drop knob cap disclosed in the embodiment of the present invention;
fig. 2 is a plan view of the falling-off preventive knob cap disclosed in the embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line AA in FIG. 2;
fig. 4 is a schematic structural view of the anti-drop knob cap disclosed in the embodiment of the present invention.
Detailed Description
The utility model discloses an anti-falling knob cap, which is used for ensuring the stable fixation of the knob cap.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, the application discloses an anti-drop knob cap, which is used for being assembled on a connecting shaft and comprises a knob cap main body 1 and a thimble assembly. The knob cap body 1 is provided with an assembly hole 2 used for being matched with the connecting shaft, the assembly hole 2 and the connecting shaft can be limited relatively along the circumferential direction to prevent mutual rotation, the assembly hole 2 is a step hole, and the connecting shaft can be assembled in the assembly hole 2 along the axial direction in a limiting mode. Specifically, the assembled knob cap main body 1 and the connecting shaft are limited along the circumferential direction through the set shape of the assembling hole 2 and the connecting shaft, and axial limitation is realized through a step structure.
And the thimble assembly is installed in the mounting hole of the side of knob cap main part 1, and can offset with the connecting axle after the thimble assembly assembles, further prevents connecting axle and pilot hole 2 relative rotation. Through the spacing of pilot hole 2 and connecting axle and the butt of thimble assembly to the connecting axle, realize guaranteeing the stability of connecting from two aspects, can effectively prevent not hard up, lead to the problem that the knob cap drops.
In another embodiment, the cross section of the connecting shaft is a rectangular surface, and the corresponding mounting hole 2 is a rectangular hole. Also can all set up connecting axle and pilot hole 2 into triangle-shaped structure or hexagon structure etc. in reality, it is spacing each other through polygonal setting accessible polygon promptly, realize that pilot hole 2 is spacing with the relative of connecting axle.
In addition, the cross section of the connecting shaft can be oval, and the corresponding assembling hole 2 is an oval hole. It can be understood by those skilled in the art that the connecting shaft and the assembling hole 2 may also be in a drop shape, i.e. a shape that can limit the connecting shaft and the assembling hole 2 relative to each other is within a protection range.
In practice, pilot hole 2 includes the straight section of circular arc section and connection circular arc section, connecting axle and pilot hole 2 adaptation. After the arc section and the straight section of the assembling hole 2 are connected, the assembling hole 2 forms a D-shaped hole. It can be known from the above, the core of this application lies in setting up connecting axle and assembly hole 2 shape to non-cylindrical to avoid connecting axle and assembly hole 2 relative rotation, guaranteed the stability of connecting.
The thimble assembly comprises two set screws 3 which are respectively in threaded connection with the knob cap main body 1. Specifically, through the mounting hole threaded connection of holding screw 3 and knob cap main part 1, guarantee holding screw 3's connection stability, in addition, combine above-mentioned embodiment, because the connecting axle is non-circular structure to still can increase holding screw 3 and the area of contact of connecting axle, can improve the effort of butt, and then further guarantee the stability after knob cap main part 1 assembles. It will be understood by those skilled in the art that the number of the set screws 3 can be set according to different needs and is within the protection scope.
In a preferred embodiment, the two set screws 3 are oppositely arranged along the radial direction of the knob cap body 1, so that the two sides of the knob cap body 1 can be ensured to be both subjected to the abutting force, the knob cap body 1 can be clamped while the stress balance is ensured, and the mounting stability of the knob cap is ensured. A specific position of the set screw 3 on the knob cap body 1 is defined here, and in practice, the specific position of the set screw 3 can be set according to different requirements.
In a further embodiment, the end of the knob cap body 1 is provided with a groove 5 for mounting the outer label 4, and the outer label 4 is a PC piece. The size and shape of the groove 5 can be set according to the size and shape of the outer label 4, and the outer label 4 can be provided with a character mark and/or a picture mark.
In addition, the knob cap body 1 is provided with the indicating mark 6 for indicating the rotating direction, so that the knob cap body can be operated by an operator conveniently, misoperation is prevented, and the use safety is ensured.
In order to increase the frictional force of the knob cap body 1, a straight groove knurling is provided on the outer surface of the knob cap body 1, and in practice, other types of knurling may be provided as long as the frictional force of the knob cap body 1 can be increased to reduce the external force applied to the knob cap body 1 by the operator. Preferably, the knob cap body 1 disclosed above is an aluminum profile, but the knob cap body 1 in the present application is not limited to the aluminum profile.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an anti-drop knob cap for the assembly is on the connecting axle, its characterized in that includes:
the knob cap comprises a knob cap body (1), wherein the knob cap body (1) is provided with an assembling hole (2) matched with the connecting shaft, the assembling hole (2) and the connecting shaft can be limited relatively along the circumferential direction to prevent mutual rotation, the assembling hole (2) is a step hole, and the connecting shaft can be assembled in the assembling hole (2) in a limiting manner along the axial direction;
the side surface of the knob cap main body (1) is provided with a mounting hole for assembling the ejector pin component, and the ejector pin component is abutted against the connecting shaft through the mounting hole.
2. The anti-drop knob cap according to claim 1, wherein the fitting hole (2) is a rectangular hole, and the section of the connecting shaft is a rectangular surface.
3. The anti-drop knob cap according to claim 1, wherein the fitting hole (2) is an elliptical hole, and the section of the connection shaft is elliptical.
4. The anti-drop knob cap according to claim 1, wherein the fitting hole (2) includes a circular arc section and a straight section connecting the circular arc section, the connecting shaft being fitted with the fitting hole.
5. The anti-drop knob cap according to claim 1, wherein said thimble assembly comprises two set screws (3) respectively screwed with said knob cap body (1).
6. The anti-drop knob cap according to claim 5, characterized in that two said set screws (3) are arranged oppositely in a radial direction of said knob cap body (1).
7. The anti-drop knob cap according to any one of claims 1 to 6, wherein the end of the knob cap body (1) is provided with a groove (5) for mounting an external surface sticker (4), the external surface sticker (4) being a PC piece.
8. A drop-proof knob cap according to any one of claims 1-6, characterized in that an indication mark (6) for indicating a rotation direction is provided on the knob cap body (1).
9. A drop-proof knob cap according to any one of claims 1-6, wherein the outer surface of the knob cap body (1) is provided with straight knurling.
10. The anti-drop knob cap according to any one of claims 1 to 6, wherein the knob cap body (1) is an aluminum profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654748.5U CN215910832U (en) | 2021-07-20 | 2021-07-20 | Anti-drop knob cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121654748.5U CN215910832U (en) | 2021-07-20 | 2021-07-20 | Anti-drop knob cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215910832U true CN215910832U (en) | 2022-02-25 |
Family
ID=80289555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121654748.5U Active CN215910832U (en) | 2021-07-20 | 2021-07-20 | Anti-drop knob cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215910832U (en) |
-
2021
- 2021-07-20 CN CN202121654748.5U patent/CN215910832U/en active Active
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