CN210401522U - Revolution meter - Google Patents
Revolution meter Download PDFInfo
- Publication number
- CN210401522U CN210401522U CN201921147825.0U CN201921147825U CN210401522U CN 210401522 U CN210401522 U CN 210401522U CN 201921147825 U CN201921147825 U CN 201921147825U CN 210401522 U CN210401522 U CN 210401522U
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- tachometer
- light
- display screen
- blocking cover
- light blocking
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Abstract
The utility model discloses a tachometer, belonging to a measuring instrument; the technical scheme is characterized by comprising a tachometer body and a light blocking cover arranged on the tachometer body, wherein a display screen capable of displaying scales is fixedly connected to the tachometer body, and the light blocking cover is positioned at the display screen; the light blocking cover is made of the same material as the corrugated pipe and is corrugated. The utility model provides a problem of the easy reflection of light of the tachometer display screen of chanting conventional, reached and to have avoided the reflection of light, the accurate observation measured value of being convenient for, the effect of the record data that can be accurate.
Description
Technical Field
The utility model relates to a measuring instrument, more specifically the saying so, it relates to a tachometer.
Background
The tachometer (megger) is commonly called as a megger, and most of the tachometers are powered by hand generators, so the tachometer is also called as a megger. Its scale is in mega ohms (M Ω). The instrument is a commonly used measuring instrument for electricians, and is mainly used for checking insulation resistance of electrical equipment, household appliances or electrical circuits to the ground and between phases so as to ensure that the equipment, the appliances and the circuits work in a normal state and avoid accidents such as electric shock casualties, equipment damage and the like.
Now can refer to the chinese utility model patent that the grant bulletin number is CN208999455U, it discloses a non-contact tachometer, which comprises a bod, the positive fixed mounting of organism has the display screen, the middle part fixed mounting on organism top has the laser mouth, the positive movable mounting of organism has the protection film that is located the display screen below.
The tachometer can be used outdoors, and under the illumination of sunshine, the display screen of tachometer can produce the reflection of light, leads to the workman to see the measured value by mistake very easily, leads to the data of record inaccurate.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a tachometer, it can realize preventing the display screen reflection of light through the cover that is in the light, the accurate observed measurement value of being convenient for, and then can be accurate carry out the purpose of record to data.
In order to achieve the above purpose, the utility model provides a following technical scheme: a tachometer comprises a tachometer body and a light shield arranged on the tachometer body, wherein a display screen capable of displaying scales is fixedly connected to the tachometer body, and the light shield is positioned at the display screen;
the light blocking cover is made of the same material as the corrugated pipe and is corrugated.
Through adopting above-mentioned technical scheme, the material that is in the light cover is also the bellows the same, and is the corrugate setting, then the cover that is in the light can be adjusted, carries out the during operation outdoors, can adjust suitable position according to the cover that is in the light of sunshine angle, avoids sunshine to penetrate the display screen directly, prevents the display screen reflection of light, can not lead to the fact the influence to observing the display screen simultaneously, observation measured value that can be accurate, and then can be accurate carry out the record to the measured value.
The utility model discloses further set up to: the surface of the light blocking cover far away from the display screen is provided with grains capable of increasing the surface roughness of the light blocking cover.
By adopting the technical scheme, the lines increase the roughness of the surface of the light blocking cover, and the surface of the light blocking cover can be prevented from generating mirror reflection, so that the influence on human eyes is prevented.
The utility model discloses further set up to: and a light supplementing lamp is arranged on one side of the light blocking cover close to the display screen.
Through adopting above-mentioned technical scheme, use the rotational speed timing in the darker department of light, the light filling lamp can carry out the light filling, makes the luminance of display screen department higher, so also can be accurate observe the measured value in dark department.
The utility model discloses further set up to: the light supplement lamp is an LED lamp bar.
Through adopting above-mentioned technical scheme, LED lamp strip can reduce the waste to the energy, and takes up space still less, can not be to the inner wall that too protrudes the light shield, can not be to the influence that the observation display screen caused.
The utility model discloses further set up to: the light filling lamp is fixedly connected to the vertical side wall of the light blocking cover.
Through adopting above-mentioned technical scheme, the light filling lamp is located the vertical lateral wall that is in the light cover, is that the broadside is not smooth to the display screen, can not penetrate the display screen directly to can avoid light to cause the reflection of light of display screen.
The utility model discloses further set up to: the lower surface of tachometer body is fixed with two fixed belts, and the one end that the tachometer body was kept away from to two fixed belts links together through the plastics eye-splice.
Through adopting above-mentioned technical scheme, can fix the tachometer on workman's arm through the fixed band, need not handheld, portable.
The utility model discloses further set up to: one side of the fixing band, which is contacted with the arm, is fixedly connected with a sponge layer.
Through adopting above-mentioned technical scheme, the sponge layer can reduce the oppression of fixed band to workman's arm portion to the comfort level of arm when increasing fixed band and arm contact can not be because of leaving the trace on the arm too long time.
To sum up, the utility model discloses compare and have following beneficial effect in prior art:
1. the display screen on the tachometer body is provided with the light blocking cover, the light blocking cover can prevent sunlight from directly irradiating the display screen, reflection of light generated by the display screen is avoided, a detection value can be accurately observed, and data can be accurately recorded;
2. the surface of the light blocking cover, which is far away from the display screen, is provided with the lines capable of increasing the surface roughness of the light blocking cover, so that the surface of the light blocking cover is prevented from generating mirror reflection, and the influence on human eyes is avoided.
Drawings
FIG. 1 is a block diagram of an embodiment.
In the figure: 1. a tachometer body; 11. a display screen; 2. a light blocking cover; 21. a light supplement lamp; 22. lines; 3. fixing belts; 31. plastic buckles; 32. a sponge layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example (b): a tachometer, as shown in fig. 1, comprises a tachometer body 1 and a light blocking cover 2 arranged on the tachometer body 1; fixedly connected with display screen 11 on the tachometer body 1, on the display screen 11 was located to the cover 2 that is in the light, the cover 2 that is in the light can shelter from display screen 11, avoids the direct irradiation of sunshine, prevents to produce the reflection of light, and observation measured value that can be accurate is convenient for accurate to data record.
As shown in fig. 1, the light blocking cover 2 is made of the same material as the corrugated pipe, and the light blocking cover 2 is corrugated, so that the light blocking cover 2 can be adjusted at any position, and the sunlight irradiation angle adjustment light blocking cover 2 can be provided, so that sunlight can be shielded, and data on the observation display screen can not be influenced while reflection of light is prevented.
As shown in fig. 1, a light supplement lamp 21 formed by LED light bars is fixedly connected to a side wall of the light blocking cover 2 close to the display screen 11; use the rotational speed timing in the darker department of light, light filling lamp 21 can play the effect of light filling, is convenient for observe the measured value, and light filling lamp 21 is LED lamp strip, can reach resources are saved's purpose, and light filling lamp 21 is not located the top of cover 2 that is in the light, can avoid light to penetrate the display screen directly and cause the reflection of light.
As shown in fig. 1, the surface of the light blocking cover 2 away from the display screen 11 is provided with grains 22, the grains 22 can increase the roughness of the surface of the light blocking cover 2, and the surface of the light blocking cover 2 can generate mirror reflection, so that discomfort to human eyes is avoided.
As shown in fig. 1, the lower surface of the tachometer body 1 is also fixedly connected with two fixing straps 3, and one ends of the two fixing straps 3 away from the tachometer body 1 can be connected together through a plastic buckle 31, so that the tachometer can be fixed on an arm without being held by a hand all the time, and is convenient to carry; the fixed band 3 laminating is still fixedly connected with one deck sponge layer 32 on the surface of arm, can reduce the oppression that fixed band 3 caused the arm, improves the comfort level of fixed rotational speed timing.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A tachometer, characterized by: the device comprises a tachometer body (1) and a light shield (2) arranged on the tachometer body (1), wherein the tachometer body (1) is fixedly connected with a display screen (11) capable of displaying scales, and the light shield (2) is positioned at the display screen (11);
the light blocking cover (2) is made of the same material as the corrugated pipe, and the light blocking cover (2) is corrugated.
2. A tachometer according to claim 1, wherein: the surface of the light blocking cover (2) far away from the display screen (11) is provided with grains (22) capable of increasing the surface roughness of the light blocking cover (2).
3. A tachometer according to claim 1, wherein: and a light supplement lamp (21) is arranged on one side of the light blocking cover (2) close to the display screen (11).
4. A tachometer according to claim 3, wherein: the light supplement lamp (21) is an LED lamp bar.
5. A tachometer according to claim 3, wherein: the light supplementing lamp (21) is fixedly connected to the vertical side wall of the light blocking cover (2).
6. A tachometer according to claim 1, wherein: the lower surface of tachometer body (1) is fixed with two fixed bands (3), and the one end that tachometer body (1) was kept away from in two fixed bands (3) links together through plastics eye-splice (31).
7. A tachometer according to claim 6, wherein: one side of the fixing belt (3) contacting with the arm is fixedly connected with a sponge layer (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921147825.0U CN210401522U (en) | 2019-07-20 | 2019-07-20 | Revolution meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921147825.0U CN210401522U (en) | 2019-07-20 | 2019-07-20 | Revolution meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210401522U true CN210401522U (en) | 2020-04-24 |
Family
ID=70355652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921147825.0U Active CN210401522U (en) | 2019-07-20 | 2019-07-20 | Revolution meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210401522U (en) |
-
2019
- 2019-07-20 CN CN201921147825.0U patent/CN210401522U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |