CN213960072U - High-precision optical time domain reflectometer - Google Patents

Abstract

The utility model discloses a high accuracy light time domain reflectometer, including metal casing, the equal fixed mounting in metal casing both sides has the curb plate, the equal fixed mounting in surface of curb plate has the slipmat, the front side of curb plate all is equipped with the curb plate recess, the both sides of metal casing's upper surface all are equipped with the dust groove, one side fixed mounting in dust groove has two pivot draw-in grooves, gap department in the middle of the pivot draw-in groove is equipped with the pivot, the equal fixed mounting in both sides of pivot has the pivot buckle, pivot buckle card goes into the inside of pivot draw-in groove. The utility model discloses a set up the mode in dustproof groove in joint department, make to connect the hole and cover dustproof groove through dustproof top cap under the condition that does not use, prevent that the dust from getting into the inside measuring result error that produces of jack. Through the mode at the internally mounted protective sheath of jack, make each inside gap of jack can be filled in, prevent that the dust from getting into, influence measuring result.

Description

High-precision optical time domain reflectometer

Technical Field

The utility model relates to an optical time domain reflectometer manufacturing technical field specifically is a high accuracy optical time domain reflectometer.

Background

With the rapid development of social economy, the use of the optical time domain reflectometer has become one of the tools commonly used in daily life of people, and the optical time domain reflectometer is an instrument for understanding several performances of optical fiber, such as uniformity, defects, breakage, joint coupling and the like, through the analysis of a measurement curve. The optical fiber attenuation measuring device is manufactured according to the principle of backward scattering and Fresnel reflection of light, obtains attenuation information by utilizing the backward scattering light generated when the light propagates in the optical fiber, can be used for measuring the attenuation of the optical fiber, the joint loss, the positioning of the fault point of the optical fiber, knowing the loss distribution condition of the optical fiber along the length and the like, and is an essential tool in the construction, maintenance and monitoring of the optical cable.

However, the existing optical time domain reflectometer is difficult to protect, and many factors such as dust and the like can generate errors on the measurement result; therefore, the existing requirements are not met, and a high-precision optical time domain reflectometer is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy optical time domain reflectometer to solve the optical time domain reflectometer that proposes in the above-mentioned background art and hardly protect, many factors such as dust all can be to measuring result production error scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision optical time domain reflectometer comprises a metal shell, side plates are fixedly arranged on both sides of the metal shell, the surfaces of the side plates are all fixedly provided with non-slip mats, the front sides of the side plates are all provided with side plate grooves, two sides of the upper surface of the metal shell are respectively provided with a dustproof groove, one side of each dustproof groove is fixedly provided with two rotating shaft clamping grooves, a rotating shaft is arranged at the gap in the middle of the rotating shaft clamping groove, rotating shaft buckles are fixedly arranged on both sides of the rotating shaft, the rotating shaft buckle is clamped in the rotating shaft clamping groove, the other side of the rotating shaft is fixedly provided with a dustproof top cover, the dustproof top cover is clamped into the top end of the dustproof groove, one side of the top end of the metal shell close to the center is fixedly provided with a jack shell, the inside fixed mounting of jack shell has the jack inner shell, the opposite side fixed mounting that the metal casing top is close to the center has the protective sheath.

Preferably, the surface of metal casing is equipped with the display screen, one side of display screen is equipped with a plurality of buttons.

Preferably, a through hole is formed in the dust-proof groove close to the protective sleeve, and a USB interface is arranged in the other dust-proof groove.

Preferably, the surface of the bottom end of the metal shell is provided with a plurality of dustproof grooves.

Preferably, an outer shell buckle is fixedly mounted on the outer side of the inner portion of the protective sleeve, and an inner shell buckle is fixedly mounted on the inner side of the inner portion of the protective sleeve.

Preferably, the gap department between jack outer shell and the jack inner shell is equipped with the shell recess, the inside of jack inner shell is equipped with the inner shell recess, the inside of shell recess is gone into to the shell buckle card, the inside of inner shell recess is gone into to the inner shell buckle card.

Preferably, both sides of the rotating shaft clamping groove are fixedly provided with fixed disks, and the fixed disks are fixedly connected with the rotating shaft buckles.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the mode in dustproof groove in joint department, make to connect the hole and cover dustproof groove through dustproof top cap under the condition that does not use, prevent that the dust from getting into the inside measuring result error that produces of jack. By installing the protective sleeve in the jack, all gaps in the jack can be fully filled, so that dust is prevented from entering and affecting a measurement result;

2. the utility model discloses a set up the mode of slipmat on the surface of curb plate, make the in-process that the device was using reduce because the condition that the hand sweat hand slided and lead to droing, improved the stability of device.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is an overall front view of the present invention;

fig. 3 is a top view of the whole of the present invention;

fig. 4 is a schematic view of a partial structure of the jack of the present invention.

In the figure: 1. a metal housing; 2. a display screen; 3. a button; 4. a side plate; 5. a non-slip mat; 6. a side plate groove; 7. a dust-proof groove; 8. a dust-proof top cover; 9. a USB interface; 10. a rotating shaft clamping groove; 11. a rotating shaft; 12. fixing the disc; 13. a jack housing; 14. a jack inner housing; 15. a protective sleeve; 16. a through hole; 17. a groove of the inner shell; 18. a housing recess; 19. buckling an inner shell; 20. a shell is buckled; 21. the rotating shaft is buckled.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a high accuracy light time domain reflectometer, including metal casing 1, the equal fixed mounting in 1 both sides of metal casing has curb plate 4, the equal fixed mounting in surface of curb plate 4 has slipmat 5, the front side of curb plate 4 all is equipped with curb plate recess 6, the both sides of the upper surface of metal casing 1 all are equipped with dust groove 7, one side fixed mounting of dust groove 7 has two pivot draw-in grooves 10, gap department in the middle of the pivot draw-in groove 10 is equipped with pivot 11, the equal fixed mounting in both sides of pivot 11 has pivot buckle 21, pivot buckle 21 card goes into the inside of pivot draw-in groove 10, the opposite side fixed mounting of pivot 11 has dustproof top cap 8, dustproof top cap 8 card goes into the top of dust groove 7, one side fixed mounting that metal casing 1 top is close to the center has jack outer shell 13, the inboard fixed mounting of jack outer shell 13 has jack inner shell 14, the opposite side fixed mounting that metal casing 1 top is close to the center has protective sheath 15.

Further, the surface of metal casing 1 is equipped with display screen 2, and one side of display screen 2 is equipped with a plurality of buttons 3.

Through adopting above-mentioned technical scheme, carry out accurate control to the device through display screen and button, reduce the maloperation.

Further, a through hole 16 is provided inside the dust-proof slot 7 adjacent to the protective cover 15, and a USB port 9 is provided inside the other dust-proof slot 7.

Through adopting above-mentioned technical scheme, protect the USB interface through the dustproof groove, prevent that the dust from getting into and influencing the measuring result.

Further, the surface of the bottom end of the metal shell 1 is provided with a plurality of dust-proof grooves 7.

Through adopting above-mentioned technical scheme, protect each hole of putting through the dustproof groove, prevent measuring error.

Further, an outer shell buckle 20 is fixedly mounted on the outer side of the inner part of the protective sleeve 15, and an inner shell buckle 19 is fixedly mounted on the inner side of the inner part of the protective sleeve 15.

Through adopting above-mentioned technical scheme, protect the jack through the protective sheath, make and can prevent that the dust from getting into the jack when the device does not use inside to destroy the jack.

Further, a gap between the jack outer shell 13 and the jack inner shell 14 is provided with an outer shell groove 18, an inner shell groove 17 is arranged inside the jack inner shell 14, an outer shell buckle 20 is clamped inside the outer shell groove 18, and an inner shell buckle 19 is clamped inside the inner shell groove 17.

Through adopting above-mentioned technical scheme, fill up the jack inside through the buckle, prevent that the dust from piling up inside the jack, cause the error to the measuring result.

Further, both sides of the rotating shaft clamping groove 10 are fixedly provided with a fixed disc 12, and the fixed disc 12 is fixedly connected with the rotating shaft buckle 21.

Through adopting above-mentioned technical scheme, rotate through pivot buckle control pivot, make dustproof top cap can stabilize on the top of dustproof recess.

The working principle is as follows: during the use, place the assigned position with the device, whether each part of inspection normally works, take up the device through slipmat 5, through jack shell 13, USB interface 9 or through-hole 16 are connected to and wait to detect the article, through display screen 2 and 3 control switch of button and look over data, seal dust proof tank 7 through dustproof top cap 8 when not using, prevent that the dust from getting into the inside of USB interface 9 or through-hole 16, seal jack shell 13 and jack inner shell 14 through protective sheath 15, prevent that the dust from getting into the inside of jack shell 13 and jack inner shell 14, produce the error to device measuring result.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. A high accuracy optical time domain reflectometer, includes metal casing (1), its characterized in that: the dustproof structure is characterized in that side plates (4) are fixedly mounted on two sides of the metal shell (1), anti-slip pads (5) are fixedly mounted on the surfaces of the side plates (4), side plate grooves (6) are arranged on the front sides of the side plates (4), dustproof grooves (7) are arranged on two sides of the upper surface of the metal shell (1), two rotating shaft clamping grooves (10) are fixedly mounted on one sides of the dustproof grooves (7), rotating shafts (11) are arranged at gaps in the middles of the rotating shaft clamping grooves (10), rotating shaft buckles (21) are fixedly mounted on two sides of the rotating shafts (11), the rotating shaft buckles (21) are clamped into the rotating shaft clamping grooves (10), dustproof top covers (8) are fixedly mounted on the other sides of the rotating shafts (11), jacks (13) are fixedly mounted on one side, close to the center, of the top end of the metal shell (1), the inside fixed mounting of jack shell (13) has jack inner shell (14), the opposite side fixed mounting that metal casing (1) top is close to the center has protective sheath (15).

2. A high precision optical time domain reflectometer as in claim 1, wherein: the surface of metal casing (1) is equipped with display screen (2), one side of display screen (2) is equipped with a plurality of buttons (3).

3. A high precision optical time domain reflectometer as in claim 1, wherein: be close to protective sheath (15) the inside of dust protection groove (7) is equipped with through-hole (16), another the inside of dust protection groove (7) is equipped with USB interface (9).

4. A high precision optical time domain reflectometer as in claim 1, wherein: the surface of the bottom end of the metal shell (1) is provided with a plurality of dustproof grooves (7).

5. A high precision optical time domain reflectometer as in claim 1, wherein: the outside fixed mounting of protective sheath (15) inside has shell buckle (20), the inside inboard fixed mounting of protective sheath (15) has inner shell buckle (19).

6. A high accuracy optical time domain reflectometer as in claim 5, wherein: the utility model discloses a socket, including jack inner shell (14), jack outer shell (13) and jack inner shell (14), gap department between jack outer shell (13) and jack inner shell (14) is equipped with shell recess (18), the inside of jack inner shell (14) is equipped with inner shell recess (17), the inside of shell recess (18) is gone into to shell buckle (20), the inside of inner shell recess (17) is gone into to inner shell buckle (19) card.

7. A high precision optical time domain reflectometer as in claim 1, wherein: the two sides of the rotating shaft clamping groove (10) are fixedly provided with fixed disks (12), and the fixed disks (12) are fixedly connected with the rotating shaft buckle (21).

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