CN211979259U

CN211979259U - LC yin-yang attenuator

Info

Publication number: CN211979259U
Application number: CN202020954652.XU
Authority: CN
Inventors: 沈淑波
Original assignee: Ningbo Mindray Network Equipment Co ltd
Current assignee: Ningbo Mindray Network Equipment Co ltd
Priority date: 2020-05-30
Filing date: 2020-05-30
Publication date: 2020-11-20
Anticipated expiration: 2030-05-30

Abstract

The utility model discloses a LC yin-yang attenuator, including front cover, back cover and the component subassembly that sets up between front cover and back cover, the component subassembly includes the first pottery lock pin, four directions caudal peduncle, second pottery lock pin, ceramic sleeve pipe and spring that set gradually, first pottery lock pin and second pottery lock pin insert and establish in four directions caudal peduncle, first pottery lock pin and second pottery lock pin all are equipped with central through-hole, the ceramic sleeve pipe cover is established on second pottery lock pin, the spring housing is located four directions caudal peduncle, four directions caudal peduncle includes caudal peduncle sleeve, first joint piece and second joint piece that set gradually from back to front, exhaust hole is vertically provided on the caudal peduncle sleeve, be equipped with the stop in the front cover, stop and first joint piece front end vertical face butt, design the first joint piece into four corners structure, fix a position with the stop cooperation in the front cover, the inclined plane of second joint piece does not participate in size control, the processing is simple, the processing precision is high, and the tail handle can be accurately positioned, so that the stability of data transmission is improved.

Description

LC yin-yang attenuator

Technical Field

The utility model relates to an optic fibre technical field especially relates to a LC yin and yang attenuator.

Background

The optical fiber attenuator is an optical device for reducing the energy of optical signals, is used for attenuating the input optical power, and avoids the distortion generated by an optical receiver due to the ultra-strong input optical power. At present, the design of hexagonal adding inclined plane is adopted to the great majority LC negative and positive attenuator caudal peduncle in the market, and the prowl also adopts such design, and the two is mutually supported and is realized spacing to the position of caudal peduncle, but the design that the hexagonal adds the inclined plane is higher at the in-process degree of difficulty in the course of working, and the precision is difficult to control, and the inclined plane is unstable at the grinding in-process to make caudal peduncle location not accurate enough, and then exert an influence to transmission data's stability.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a not enough to above-mentioned prior art, provide a LC yin-yang attenuator.

In order to solve the above problems, the utility model adopts the following technical proposal:

the utility model provides a LC yin-yang attenuator, includes preceding cover, back cover and sets up the component subassembly between preceding cover and back cover, the preceding cover is inserted and is established on the back cover, the component subassembly is including the first pottery lock pin, four directions caudal peduncle, second pottery lock pin, ceramic sleeve pipe and the spring that set gradually, the central part of four directions caudal peduncle is provided with the first through-hole that runs through along length direction, first pottery lock pin and second pottery lock pin are inserted and are established in the first through-hole, first pottery lock pin and second pottery lock pin all are equipped with central through-hole, and two central through-holes are located same axle center, the ceramic sleeve pipe box is established on second pottery lock pin, the one end and the four directions caudal peduncle butt of ceramic sleeve pipe, the other end extend to the second pottery lock pin outside, the spring box is located the four directions caudal peduncle, the one end and the back cover butt of spring, the four directions caudal peduncle includes the caudal ped, The exhaust hole is communicated with the first through hole, the first clamping block is of a rectangular structure, the second clamping block is of a round table-shaped structure, the diameter of the bottom surface of the round table is as long as the side length of the first clamping block, a stop is arranged in the front sleeve and is abutted against the vertical surface at the front end of the first clamping block, and the vertical surface at the rear end of the first clamping block is abutted against the other end of the spring.

Furthermore, an open slot is formed in the side wall of the ceramic sleeve along the length direction, and the open slot penetrates through two ends of the ceramic sleeve.

Further, there is no contact between the first ferrule and the second ferrule.

Further, the front cover is the rectangle structure, and the roof of front cover is provided with U type groove, the one end in U type groove extends to the one end that is close to the back cover, the back cover includes joint portion and fixed part, joint portion is cascaded structure, the front cover is established in joint portion, the ladder surface butt of front cover and joint portion, the upper surface of joint portion is provided with the shelves of only tearing open, shelves and U type groove looks adaptation are torn open to the end.

Furthermore, two clamping holes are symmetrically formed in two side plates of the front sleeve, two clamping blocks are arranged on two side faces of the clamping portion, and the clamping blocks are clamped in the clamping holes.

Further, the first ferrule and the second ferrule are 6.5mm in length and 1.23mm in diameter.

Furthermore, the length of the square tail handle is 6.85mm, and the side length of the first clamping block is 2.56 mm.

Further, the length of the ceramic bushing is 6.75mm, and the diameter of the ceramic bushing is 1.65 mm.

Further, the length of the spring is 9mm, and the outer diameter of the spring is 2.9 mm.

Furthermore, a front dustproof cap is inserted into the front end of the front sleeve, and a rear dustproof cap is inserted into the rear end of the rear sleeve.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the first clamping blocks on the tail handle are designed into a four-corner structure and are positioned in cooperation with the stop gears in the front sleeve, and the inclined planes of the second clamping blocks do not participate in size control.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

FIG. 4 is a front view of the square tail handle of the present invention;

fig. 5 is a schematic view of the three-dimensional structure of the ceramic bushing of the present invention.

In the figure: the ceramic ferrule comprises a front sleeve 1, a rear sleeve 2, a first ceramic ferrule 3, a square tail handle 4, a second ceramic ferrule 5, a ceramic sleeve 6, a spring 7, an open slot 8, a tail handle sleeve 9, a first clamping block 10, a second clamping block 11, a stop 13, a U-shaped groove 14, a clamping part 15, a fixing part 16, a disassembly stop 17, a clamping hole 18, a clamping block 19, a front dust cap 20, a rear dust cap 21 and an exhaust hole 22.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1-5, an LC yin-yang attenuator comprises a front sleeve 1, a rear sleeve 2, and a component assembly disposed between the front sleeve 1 and the rear sleeve 2, wherein the front sleeve 1 is inserted into the rear sleeve 2, the component assembly comprises a first ferrule 3, a square tail handle 4, a second ferrule 5, a ferrule 6, and a spring 7, which are sequentially disposed, a first through hole 12 is disposed at a central portion of the square tail handle 4 along a length direction, the first ferrule 3 and the second ferrule 5 are inserted into the first through hole 12, the first ferrule 3 and the second ferrule 5 are both provided with central through holes, the two central through holes are disposed on the same axis, an optical fiber is inserted into the central through hole, the ferrule 6 is sleeved on the second ferrule 5, one end of the ferrule 6 abuts against the square tail handle 4, and the other end extends to an outer side of the second ferrule 5, the spring 7 is sleeved on the square tail handle 4, one end of the spring 7 is abutted against the rear sleeve 2, the square tail handle 4 comprises a tail handle sleeve 9, a first clamping block 10 and a second clamping block 11 which are sequentially arranged from back to front, the side wall of the tail handle sleeve 9 is provided with an exhaust hole 22, the exhaust hole 22 is communicated with the first through hole 12, the first clamping block 10 is of a rectangular structure, the second clamping block 11 is of a circular truncated cone-shaped structure, the diameter of the bottom surface of the circular truncated cone is the same as the side length of the first clamping block 10, a stop 13 is arranged in the front sleeve 1, the stop 13 is abutted against the vertical surface at the front end of the first clamping block 10, so that the square tail handle 4 is more accurate compared with the traditional positioning mode, because the first ceramic ferrule 3 is inserted into the square tail handle 4, the length of the first ceramic ferrule 3 exposed out of the front sleeve 1 can be more accurate, and the vertical surface at the rear end of the first clamping block 10 is abutted against the other end of the spring 7.

Furthermore, an open slot 8 is formed in the side wall of the ceramic sleeve 6 along the length direction, the open slot 8 penetrates through the two ends of the ceramic sleeve 6, and the ceramic sleeve 6 has certain elasticity due to the arrangement of the open slot 8, so that the ceramic ferrule can be conveniently inserted.

Further, there is no contact between the first ferrule 3 and the second ferrule 5.

Further, the front cover 1 is the rectangle structure, and the roof of front cover 1 is provided with U type groove 14, the one end in U type groove extends to the one end that is close to back cover 2, back cover 2 includes joint portion 15 and fixed part 16, joint portion 15 is cascaded structure, 1 cover of front cover is established in joint portion 15, the ladder face butt of front cover 1 and joint portion 15, the upper surface of joint portion 15 is provided with ends and tears shelves 17 open, end and tear shelves 17 and U type groove 14 looks adaptation open.

Further, two side plates of the front sleeve 1 are symmetrically provided with two clamping holes 18, two side surfaces of the clamping portion 15 are provided with two clamping blocks 19, and the clamping blocks 19 are clamped in the clamping holes 18.

Further, the first ferrule 3 and the second ferrule 5 have a length of 6.5mm and a diameter of 1.23 mm.

Further, the length of the square tail handle 4 is 6.85mm, and the side length of the first clamping block 10 is 2.56 mm.

Further, the ceramic bushing 6 has a length of 6.75mm and a diameter of 1.65 mm.

Further, the length of the spring 7 is 9mm, and the outer diameter is 2.9 mm.

Further, a front dust cap 20 is inserted into the front end of the front sleeve 1, and a rear dust cap 21 is inserted into the rear end of the rear sleeve 2.

The working principle is as follows: inserting the first ceramic ferrule 3 and the second ceramic ferrule 5 from the front end and the rear end of the square tail handle 4 respectively, because the processing precision is high, the air between the first ceramic ferrule 3 and the second ceramic ferrule 5 is exhausted from the exhaust hole 22, the first ceramic ferrule 3 and the second ceramic ferrule 5 are not contacted, then sleeving the ceramic sleeve 6 on the second ceramic ferrule 5, enabling one end of the ceramic sleeve 6 to be abutted against the tail handle sleeve 9, then sleeving the spring 7 on the tail handle sleeve 9, enabling one end of the spring 7 to be abutted against the first clamping block 10, inserting the square tail handle 4 into the front sleeve 1, enabling the first clamping block 10 to be abutted against the stop 13, then sleeving the front sleeve 1 and the rear sleeve 2 together, enabling the other end of the spring 7 to be abutted against the rear sleeve 2, sleeving the front dust cap 20 and the rear dust cap 21 on the front sleeve 1 and the rear sleeve 2 respectively after the assembly is finished, and pulling out the rear dust cap 21 when two attenuators are required to be assembled together, and inserting the front sleeve 1 of the other attenuator into the rear sleeve 2 of the previous attenuator, and inserting the first ceramic ferrule 3 exposed out of the front sleeve 1 of the other attenuator into the ceramic sleeve 6 of the previous attenuator to finish the assembly of the two attenuators.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. An LC yin-yang attenuator comprises a front sleeve (1), a rear sleeve (2) and a component assembly arranged between the front sleeve (1) and the rear sleeve (2), wherein the front sleeve (1) is inserted on the rear sleeve (2), the component assembly comprises a first ceramic ferrule (3), a square tail handle (4), a second ceramic ferrule (5), a ceramic sleeve (6) and a spring (7) which are sequentially arranged, a first through hole (12) penetrating through the central part of the square tail handle (4) along the length direction is formed in the central part of the square tail handle, the first ceramic ferrule (3) and the second ceramic ferrule (5) are inserted in the first through hole (12), the first ceramic ferrule (3) and the second ceramic ferrule (5) are respectively provided with a central through hole, the two central through holes are positioned on the same axis, the ceramic sleeve (6) is sleeved on the second ceramic ferrule (5), one end of the ceramic sleeve (6) is abutted against the square tail handle (4), the other end of the spring (7) extends to the outer side of the second ceramic ferrule (5), the square tail handle (4) is sleeved with the spring (7), one end of the spring (7) is abutted against the rear sleeve (2), it is characterized in that the square tail handle (4) comprises a tail handle sleeve (9), a first clamping block (10) and a second clamping block (11) which are arranged from back to front in sequence, the side wall of the tail handle sleeve (9) is provided with an exhaust hole (22), the exhaust hole (22) is communicated with the first through hole (12), the first clamping block (10) is of a rectangular structure, the second clamping block (11) is of a circular truncated cone-shaped structure, the diameter of the bottom surface of the circular truncated cone is the same as the side length of the first clamping block (10), a stop (13) is arranged in the front sleeve (1), the stop gear (13) is abutted against the vertical surface of the front end of the first clamping block (10), and the vertical surface of the rear end of the first clamping block (10) is abutted against the other end of the spring (7).

2. The LC yin-yang attenuator according to claim 1, wherein the side wall of the ceramic bushing (6) is opened with an open slot (8) along the length direction, and the open slot (8) penetrates through two ends of the ceramic bushing (6).

3. The LC yin-yang attenuator of claim 1, wherein the first ferrule (3) and the second ferrule (5) are free from contact.

4. The LC yin-yang attenuator of claim 1, wherein the front sleeve (1) is a rectangular structure, the top plate of the front sleeve (1) is provided with a U-shaped groove (14), one end of the U-shaped groove extends to one end close to the rear sleeve (2), the rear sleeve (2) comprises a clamping portion (15) and a fixing portion (16), the clamping portion (15) is a stepped structure, the front sleeve (1) is sleeved on the clamping portion (15), the front sleeve (1) is abutted to the stepped surface of the clamping portion (15), the upper surface of the clamping portion (15) is provided with a stop-open gear (17), and the stop-open gear (17) is matched with the U-shaped groove (14).

5. The LC yin-yang attenuator according to claim 4, wherein two side plates of the front cover (1) are symmetrically provided with two clamping holes (18), two side surfaces of the clamping portion (15) are provided with two clamping blocks (19), and the clamping blocks (19) are clamped in the clamping holes (18).

6. The LC yin-yang attenuator of claim 1, wherein the first and second ferrules (3, 5) are 6.5mm in length and 1.23mm in diameter.

7. The LC yin-yang attenuator of claim 1, wherein the length of the square tail handle (4) is 6.85mm, and the side length of the first clamping block (10) is 2.56 mm.

8. The LC yin-yang attenuator of claim 1, wherein the ceramic bushing (6) has a length of 6.75mm and a diameter of 1.65 mm.

9. The LC yin-yang attenuator of claim 1, wherein the spring (7) has a length of 9mm and an outer diameter of 2.9 mm.

10. The LC yin-yang attenuator according to claim 1, wherein a front dust cap (20) is inserted into the front end of the front sleeve (1), and a rear dust cap (21) is inserted into the rear end of the rear sleeve (2).