CN216526388U

CN216526388U - MU type grating reflector

Info

Publication number: CN216526388U
Application number: CN202123170305.1U
Authority: CN
Inventors: 罗冰; 韦雪清
Original assignee: Wuhan Zhengqi Communication Technology Co ltd
Current assignee: Wuhan Zhengqi Communication Technology Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-05-13
Anticipated expiration: 2031-12-16

Abstract

The utility model provides an MU type grating reflector, which comprises an outer shell and an inner shell, wherein the outer shell is of a hollow structure, the outer shell is sleeved outside the inner shell, through holes which are oppositely arranged are formed in the side wall of one end of the outer shell, telescopic lock catches which are oppositely arranged are arranged on the inner shell, the lock catches correspond to the through holes one by one, a conical opening is formed in the other end of the outer shell, the inner diameter of the conical opening close to a port part is smaller than the outer diameter of the lock catch in an extending state, when the inner shell is inserted into the conical opening of the outer shell, the lock catches are pressed by the conical opening and then contract, and when the inner shell is completely inserted into the outer shell, the lock catches are ejected out and extend into the through holes to realize the locking of the outer shell and the inner shell. The outer shell and the inner shell are convenient to assemble and disassemble.

Description

MU type grating reflector

Technical Field

The utility model relates to the technical field of grating reflectors, in particular to an MU type grating reflector.

Background

The grating reflector is a key device for monitoring an optical communication link, is widely applied to an optical fiber communication system, is matched with an OTDR (optical time domain reflectometer), reflects a specific wavelength, and monitors the power of the wavelength by the OTDR, so that the quality of the optical communication link is monitored on line by monitoring signals.

MU type grating reflector among the prior art includes shell and inner shell, and the shell is hollow structure, and the shell cup joints outside the inner shell, but traditional shell and inner shell cup joint the back, can not dismantle between shell and the inner shell, when the lock pin that is located in the inner shell needs to be changed, dismantles inconveniently, can't dismantle even and cause this reflector to scrap.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an MU type grating reflector which is convenient to assemble and disassemble.

The utility model provides an MU type grating reflector, which comprises an outer shell and an inner shell, wherein the outer shell is of a hollow structure, the outer shell is sleeved outside the inner shell, through holes which are oppositely arranged are formed in the side wall of one end of the outer shell, telescopic lock catches which are oppositely arranged are arranged on the inner shell, the lock catches correspond to the through holes one by one, a conical opening is formed in the other end of the outer shell, the inner diameter of the conical opening close to a port part is smaller than the outer diameter of the lock catch in an extending state, when the inner shell is inserted into the conical opening of the outer shell, the lock catches are pressed by the conical opening and then contract, and when the inner shell is completely inserted into the outer shell, the lock catches are ejected out and extend into the through holes to realize the locking of the outer shell and the inner shell.

Compared with the prior art, the side wall of one end of the outer shell is provided with the through hole, the inner shell is provided with the corresponding telescopic lock catch, the lock catch is matched with the through hole, namely the lock catch can be inserted into the through hole to realize the connection between the outer shell and the inner shell, specifically, in order to facilitate the insertion of the inner shell into the outer shell, the other end of the outer shell is provided with the conical opening, the inner diameter of the conical opening close to the port is smaller than the outer diameter of the lock catch in an extending state, when the inner shell is inserted into the conical opening of the outer shell, the lock catch is pressed by the conical opening to shrink, and when the inner shell is completely inserted into the outer shell, the lock catch is ejected out and extends into the through hole to realize the locking of the outer shell and the inner shell; when the lock catch is disassembled, the lock catch is pressed and then retracted, and the inner shell can be pulled out of the outer shell. The outer shell and the inner shell are very convenient to assemble and disassemble.

Further, the hasp is including seting up recess on the inner shell, be equipped with locking piece and elastic component in the recess, the one end of elastic component is fixed the inner wall of recess, the other end of elastic component with locking piece fixed connection is when pressing during the locking piece, the locking piece can be compressed and advanced in the recess, when loose hand under the reaction force of elastic component, the locking piece can pop out outside the recess.

Furthermore, the opening both sides of recess all are equipped with the stopper, the stopper with the locking piece offsets, prevents to damage after the locking piece excessively pops out the recess, and the effect of stopper is the protection locking piece, improves the life of locking piece.

Furthermore, one end of the locking block extending out of the groove is provided with an inclined surface. The inclined surface inclines towards the insertion direction of the inner shell, so that the locking block is compressed into the groove after the conical opening of the outer shell abuts against the inclined surface.

Furthermore, a protective sleeve is sleeved at the position of the through hole on the shell. After the shell is assembled with the inner shell, the inner shell is separated from the shell after the protective sleeve is sleeved to prevent the mistaken touch locking piece, and the stable connection of the shell and the inner shell is ensured.

Furthermore, threads are arranged on two sides of the through hole, and the protective sleeve is screwed outside the through hole. And the protective sleeve is convenient and fast to install by adopting a threaded connection mode.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a first schematic structural diagram of the housing of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2;

FIG. 4 is a second schematic structural view of the housing of the present invention;

FIG. 5 is a schematic structural view of the inner shell of the present invention;

fig. 6 is a schematic structural view of the lock catch in a locked state according to the present invention.

Description of reference numerals:

1. a housing; 1.1, a through hole; 1.2, screw thread; 1.3, a conical opening; 2. an inner shell; 3. locking; 3.1, grooves; 3.2, locking blocks; 3.3, an elastic piece; 3.4, a limiting block; 3.5, inclined plane; 4. and (6) a protective sleeve.

Detailed Description

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 to 6, the utility model shows an MU-type grating reflector, which includes an outer shell 1 and an inner shell 2, wherein the outer shell 1 is a hollow structure, the outer shell 1 is sleeved outside the inner shell 2, the side wall of one end of the outer shell 1 is provided with through holes 1.1 which are oppositely arranged, the inner shell 2 is provided with retractable latches 3 which are oppositely arranged, the latches 3 are in one-to-one correspondence with the through holes 1.1, the other end of the outer shell 1 is provided with tapered openings 1.3, the inner diameter of the tapered openings 1.3 near the port openings is smaller than the outer diameter of the latches 3 in the extended state, when the inner shell 2 is inserted from the tapered openings 1.3 of the outer shell 1, the latches 3 are pressed by the tapered openings 1.3 and then contract, and when the inner shell 2 is completely inserted into the outer shell 1, the latches 3 are ejected and extend into the through holes 1.1 to lock the outer shell 1 and the inner shell 2.

The side wall of one end of an outer shell 1 is provided with a through hole 1.1, an inner shell 2 is provided with a corresponding telescopic lock catch 3, the lock catch 3 is matched with the through hole 1.1, namely the lock catch 3 can be inserted into the through hole 1.1 to realize the connection between the outer shell 1 and the inner shell 2, concretely, in order to facilitate the insertion of the inner shell 2 into the outer shell 1, the other end of the outer shell 1 is provided with a conical opening 1.3, the inner diameter of the conical opening 1.3 close to a port part is smaller than the outer diameter of the lock catch 3 in an extending state, when the inner shell 2 is inserted from the conical opening 1.3 of the outer shell 1, the lock catch 3 is pressed by the conical opening 1.3 and then contracts, and when the inner shell 2 is completely inserted into the outer shell 1, the lock catch 3 is popped out and extends into the through hole 1.1 to realize the locking of the outer shell 1 and the inner shell 2; when the lock catch 3 is disassembled, the inner shell 2 can be pulled out from the outer shell 1 only by pressing the lock catch 3 and then retracting. The assembly and disassembly between the outer shell 1 and the inner shell 2 in the utility model are very convenient.

Hasp 3 is equipped with locking piece 3.2 and elastic component 3.3 including seting up recess 3.1 on inner shell 2 in the recess 3.1, the inner wall at recess 3.1 is fixed to elastic component 3.3's one end, elastic component 3.3's the other end and locking piece 3.2 fixed connection, when pressing locking piece 3.2, in locking piece 3.2 can be compressed into recess 3.1, when the hand is loosened, under elastic component 3.3's reaction force, locking piece 3.2 can pop out outside recess 3.1. In this embodiment, the elastic member 3.3 is a spring, but may be other elastic connecting members.

Further, recess 3.1's opening both sides all are equipped with stopper 3.4, and stopper 3.4 offsets with locking piece 3.2, prevent that locking piece 3.2 from excessively popping out damage behind the recess 3.1, and stopper 3.4's effect is protection locking piece 3.2, improves locking piece 3.2's life.

Furthermore, the end of the locking piece 3.2 protruding the groove 3.1 is provided with a bevel 3.5. The inclined surface 3.5 is inclined towards the insertion direction of the inner shell 2, so that the tapered opening 1.3 of the outer shell 1 presses against the inclined surface 3.5 to compress the locking block 3.2 into the groove 3.1.

In the utility model, a protective sleeve 4 is sleeved on the position of the through hole 1.1 on the shell 1. After outer shell 1 and inner shell 2 assembled, sheathe in protective sheath 4 in order to prevent that the mistake from touching behind locking piece 3.2 that inner shell 2 deviates from outer shell 1, guarantee outer shell 1 and inner shell 2's stable connection.

Both sides of the through hole 1.1 are provided with threads 1.2, and the protective sleeve 4 is screwed outside the through hole 1.1. And the protective sleeve 4 is convenient to install by adopting a threaded connection mode.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear, inner and outer … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a MU type grating reflector, includes shell (1) and inner shell (2), shell (1) is hollow structure, shell (1) cup joints outside shell (2), its characterized in that: offer through-hole (1.1) of relative setting on the lateral wall of shell (1) one end, be equipped with telescopic hasp (3) of relative setting on inner shell (2), hasp (3) with through-hole (1.1) one-to-one, shell (1) other end is equipped with toper opening (1.3), the internal diameter that toper opening (1.3) are close to the port department is less than the external diameter under hasp (3) the state of stretching out, works as inner shell (2) are followed when toper opening (1.3) of shell (1) are inserted, hasp (3) quilt toper opening (1.3) are supported and are pressed the back and are shrunk, work as inner shell (2) insert completely when in outer shell (1), hasp (3) are popped out and are stretched into in through-hole (1.1) with the realization in outer shell (1) with the locking of inner shell (2).

2. MU-type grating reflector according to claim 1, characterized in that: hasp (3) are including seting up recess (3.1) on inner shell (2), be equipped with locking piece (3.2) and elastic component (3.3) in recess (3.1), the one end of elastic component (3.3) is fixed the inner wall of recess (3.1), the other end of elastic component (3.3) with locking piece (3.2) fixed connection, when pressing when locking piece (3.2), locking piece (3.2) can be compressed into in recess (3.1), when the hand is loosened under the reaction force of elastic component (3.3), locking piece (3.2) can pop out outside recess (3.1).

3. MU-type grating reflector according to claim 2, characterized in that: both sides of the opening of the groove (3.1) are provided with limit blocks (3.4), and the limit blocks (3.4) are abutted to the locking blocks (3.2).

4. MU-type grating reflector according to claim 3, characterized in that: one end of the locking block (3.2) extending out of the groove (3.1) is provided with an inclined surface (3.5).

5. MU-type grating reflector according to claim 1, characterized in that: and a protective sleeve (4) is sleeved on the position of the through hole (1.1) on the shell (1).

6. MU-type grating reflector according to claim 5, characterized in that: both sides of through-hole (1.1) are equipped with screw thread (1.2), protective sheath (4) spiro union is in outside through-hole (1.1).