CN208364574U - A kind of colour changing thermal indicutor screw plate group - Google Patents
A kind of colour changing thermal indicutor screw plate group Download PDFInfo
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- CN208364574U CN208364574U CN201820409461.8U CN201820409461U CN208364574U CN 208364574 U CN208364574 U CN 208364574U CN 201820409461 U CN201820409461 U CN 201820409461U CN 208364574 U CN208364574 U CN 208364574U
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- lid
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- heat
- sensitive variable
- screw
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Abstract
The utility model discloses a kind of colour changing thermal indicutor screw plate group, including screw, heat-sensitive variable colour lid is covered on the nut of screw, heat-sensitive variable colour lid, which meets high temperature, to change colour, reflect the superheating phenomenon of power equipment with this, discoloration is obvious, is easy to observe, ensure that people can have found simultaneously handling failure in time, the disassembly of heat-sensitive variable colour lid is simple, is convenient for people to use, structure is simple, production cost is low, can preferably meet the market demand.
Description
Technical field
The utility model relates to electrical equipment technical field, especially a kind of colour changing thermal indicutor screw plate group.
Background technique
The patent document of Publication No. " CN105673658A " discloses " a kind of colour changing thermal indicutor screw ", the technology used
Scheme is: coated one layer of the cap nut upper surface of screw, irreversible temperature indicating allochroic paint can be accomplished in power grid to circuit
The accurate positionin of connector hot spot, convenient for the quick discovery and processing of high and low pressure terminal overheating fault；But in order to make
Coating adhesion-tight, coating generally cannot be coated too thick, this causes coating color-changing unobvious, and coating color-changing is not easy to be observed, separately
Outside, due to being to need again coated coating after coating color-changing using irreversible coating, repeatedly apply the attached coating that will lead to and thicken,
Since the coating being attached on screw is not easy to thoroughly remove, it is coated repeatedly after must just replace screw, it is inconvenient to use and hold
Easily cause the wasting of resources.
Summary of the invention
For overcome the deficiencies in the prior art, the utility model provides that a kind of structure is simple, discoloration is obvious, production cost
Colour changing thermal indicutor screw plate group low, easy to use.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of colour changing thermal indicutor screw plate group, including screw are covered with heat-sensitive variable colour lid on the nut of the screw.
The inner sidewall of the heat-sensitive variable colour lid is provided with several first stripeds, the lateral wall of the nut be provided with it is described
The second striped that first striped matches.
The small 0.02-0.05mm of circumscribed radius of circle of nut described in the circumcircle radius ratio of the heat-sensitive variable colour lid.
The height of the heat-sensitive variable colour lid is 0.05-0.1mm lower than the height of the nut.
Lug boss is provided on the bottom surface of the nut.
The beneficial effects of the utility model are: the utility model can reflect that electric power is set by the discoloration of heat-sensitive variable colour lid
Standby superheating phenomenon, discoloration is obvious, is easy to observe, it is ensured that people can find in time and handling failure, the disassembly of heat-sensitive variable colour lid
Simply, it is convenient for people to use, structure is simple, and production cost is low, can preferably meet the market demand.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural decomposition diagram of the utility model；
Fig. 2 is the side sectional view after the utility model assembly.
Specific embodiment
Referring to Fig.1, Fig. 2, a kind of colour changing thermal indicutor screw plate group, including screw 1 are covered with heat on the nut 2 of the screw 2
Quick discoloration lid 3, the inner sidewall of the heat-sensitive variable colour lid 3 are provided with several first stripeds 4, and the lateral wall of the nut 2 is provided with
The second striped 5 to match with first striped 4, is capable of increasing rubbing between the heat-sensitive variable colour lid 3 and the nut 2
It wipes, the heat-sensitive variable colour lid 3 is effectively prevent to fall off from nut 2, improve product reliability.
The small 0.02-0.05mm of circumscribed radius of circle of nut 2 described in the circumcircle radius ratio of the heat-sensitive variable colour lid 3, it is ensured that
The heat-sensitive variable colour lid 3 can cover conjunction on the nut 2 securely, effectively improve product reliability；The heat-sensitive variable colour lid 3
Height it is 0.05-0.1mm lower than the height of the nut 2, can effectively prevent by screw 1 assembly when on power equipment,
Heat-sensitive variable colour lid 3 is contacted with power equipment, and when avoiding equipment heating, heat-sensitive variable colour lid 3 sticks in the surface of power equipment
And cause disassembly difficult；In addition, in the present embodiment, being provided with lug boss 6 on the bottom surface of the nut 2, screw 1 being mounted on
When on power equipment, there are certain gaps between nut 2 and power equipment, can also further avoid the heat-sensitive variable colour lid 3
It is contacted with power equipment, heat-sensitive variable colour lid 3 is dismantled simply, is convenient for people to use.
The utility model can reflect the superheating phenomenon of power equipment by the discoloration of heat-sensitive variable colour lid, and discoloration is obvious,
It is easy to observe, it is ensured that people can find in time and handling failure, and the disassembly of heat-sensitive variable colour lid is simple, are convenient for people to use, structure
Simply, production cost is low, can preferably meet the market demand.
Above embodiment cannot limit the protection scope of the invention, and the personnel of professional skill field are not departing from
In the case where the invention general idea, the impartial modification and variation done still fall within the range that the invention is covered
Within.
Claims (4)
1. a kind of colour changing thermal indicutor screw plate group, including screw (1), it is characterised in that be covered on the nut (2) of the screw (1)
Heat-sensitive variable colour lid (3), the inner sidewall of the heat-sensitive variable colour lid (3) are provided with several first stripeds (4), the nut (2) it is outer
Side wall is provided with the second striped (5) to match with first striped (4).
2. colour changing thermal indicutor screw plate group according to claim 1, it is characterised in that the circumcircle of the heat-sensitive variable colour lid (3)
The small 0.02-0.05mm of circumscribed radius of circle of nut described in radius ratio (2).
3. colour changing thermal indicutor screw plate group according to claim 1, it is characterised in that the height ratio of the heat-sensitive variable colour lid (3)
The low 0.05-0.1mm of height of the nut (2).
4. colour changing thermal indicutor screw plate group according to claim 1, it is characterised in that be provided on the bottom surface of the nut (2)
Lug boss (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820409461.8U CN208364574U (en) | 2018-03-26 | 2018-03-26 | A kind of colour changing thermal indicutor screw plate group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820409461.8U CN208364574U (en) | 2018-03-26 | 2018-03-26 | A kind of colour changing thermal indicutor screw plate group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364574U true CN208364574U (en) | 2019-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820409461.8U Active CN208364574U (en) | 2018-03-26 | 2018-03-26 | A kind of colour changing thermal indicutor screw plate group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208364574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060379A (en) * | 2021-11-16 | 2022-02-18 | 广东电网有限责任公司 | Cotter pin |
-
2018
- 2018-03-26 CN CN201820409461.8U patent/CN208364574U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060379A (en) * | 2021-11-16 | 2022-02-18 | 广东电网有限责任公司 | Cotter pin |
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