CN210394168U - Connector for sintering optical fiber perform - Google Patents
Connector for sintering optical fiber perform Download PDFInfo
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- CN210394168U CN210394168U CN201921291729.3U CN201921291729U CN210394168U CN 210394168 U CN210394168 U CN 210394168U CN 201921291729 U CN201921291729 U CN 201921291729U CN 210394168 U CN210394168 U CN 210394168U
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- sintering
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Abstract
The utility model discloses a connector is used in optical fiber perform sintering, include quartz guide bar, sintering with connector body, go up quartzy handle and sintering with the connector external member, the protruding annular boss that is equipped with of lower extreme of quartz guide bar, the connector external member is hollow structure for the sintering, connector body upper end one side has and supplies the quartzy guide bar lower extreme to incorporate first breach wherein for the sintering, and first breach extends to the upper end of connector body is used in the sintering, is equipped with the step on the inner wall of first breach department, quartzy guide bar lower extreme holding is in the first breach on connector body upper portion is used in the sintering, the connector external member cover is established for the sintering quartz guide bar with the sintering is originally external and pass through the step with the boss cooperation is carried on spacingly. The connector for sintering the optical fiber perform rod is economical and practical, is convenient to operate, and particularly has obvious advantages in the aspects of improving bearing capacity, improving stress and preventing double falling.
Description
The technical field is as follows:
the utility model relates to an optical fiber perform manufacturing technical field especially relates to a connector is used in optical fiber perform sintering.
Background art:
sintering is an important process for the production of optical fiber preforms. Sintering, namely putting the Soot (loose body) manufactured by OVD (over-voltage diode) or VAD (vapor deposition) and other methods into a sintering muffle tube, introducing chlorine and helium in cooperation with a suitable descending speed, and strictly controlling the temperature field distribution in the muffle tube according to the process temperature to remove moisture and hydroxyl from the Soot; then continuously raising the temperature to vitrify the loose body into the optical fiber preform.
At present, the existing rod hanging structure for sintering a large-size optical fiber preform as shown in fig. 2 has the advantages that the supporting force of an upper V-shaped surface of an upper quartz handle and the friction force between a sleeve and the upper quartz handle can be transmitted to the upper quartz handle through a D-shaped bolt to balance the gravity of a Soot rod together, the structure increases the bearing capacity and the stressed contact area, but the structural defect is that 1: if the D-shaped bolt is suddenly broken in the using process, the socket rod falls to damage the muffle tube to cause property loss, and a double anti-falling structure is not provided; 2: arc transition treatment is not carried out at the intersecting line of the V-shaped grooves, so that stress concentration is increased; 3: through stress analysis, the structure simultaneously increases the lateral force and finally transmits the lateral force to the conical table hanging head; 4: go up quartz handle V type groove, sleeve through-hole two and must align, just can insert D type bolt, because go up quartz handle and insert the inside relative position of not being convenient for of sleeve, the operation is not convenient for.
Meanwhile, when the sintering equipment normally operates, the low-temperature region is 1150 ℃, the high-temperature region is 1450 ℃, the process temperature of the high-temperature region can reach about 1550 ℃ during sintering, quartz glass starts to soften at 1200 ℃, when high-purity quartz is used as a sintering connector material, the final descending position of the Soot is away from the high-temperature region by a certain distance, and thus, the upper part of the Soot is provided with a section of unsintered and unsintered region, which causes waste. In combination with the production practice of the company, the original connector material is changed from high-purity quartz glass to Si3N4The heat-resistant temperature of the material is higher, so that the final sintering position of the Soot is lower, and the effective sintering length of the Soot is longer than that of the original upper end; and the wear resistance is higher, and the increasing times are increased.
To this end, how to solve the problem of the connector for sintering the heavy preform; how to solve the problem of adding a secondary anti-falling structure of a Soot rod in a connector; how to solve the problem of reasonable stress of the stress part of the sintering connector; how to hang the convenient problem of stick operation; the problems of improving the effective length of sintering and the like are problems to be solved.
The utility model has the following contents:
the utility model aims to solve the technical problem that a connector is used in optical fiber perform sintering is used in heavy weight optical fiber perform, dual anti falling sintering, and its economical and practical, operation are convenient, especially have obvious advantage in the aspect of improving the bearing, improving the atress, preventing dual anti falling.
The technical solution of the utility model is to provide a connector for sintering an optical fiber perform rod, which comprises a quartz guide rod, a connector body for sintering, an upper quartz handle and a connector kit for sintering, wherein the lower end of the quartz guide rod is convexly provided with an annular boss, the connector kit for sintering is of a hollow structure, one side of the upper end of the connector body for sintering is provided with a first notch for accommodating the lower end of the quartz guide rod, the first notch extends to the upper end of the connector body for sintering, the inner wall of the first notch is provided with a step, the lower end of the quartz guide rod is accommodated in the first notch on the upper part of the connector body for sintering, the step is matched with the boss, the connector kit for sintering is sleeved on the quartz guide rod and the connector body for sintering, the hollow inner wall of the connector kit for sintering is arranged outside and passes through the connector kit for sintering, and the connector body for sintering and the quartz guide rod are matched and limited, the upper part of the quartz guide rod protrudes out of the connector kit for sintering, one side of the lower end of the connector body for sintering is provided with a second notch for accommodating the upper part of the quartz handle, the second notch extends to the lower end part of the connector body for sintering, the inner wall of the second notch is also provided with a first boss, a second boss and a first connecting through hole at intervals, the first connecting through hole is vertical to the central axis of the connector body for sintering, the upper part of the quartz handle is also provided with a second connecting through hole vertical to the direction of the central axis, the upper part of the quartz handle is circumferentially concavely provided with a first groove and a second groove matched with the first boss and the second boss, and the upper part of the quartz handle is inserted into the second notch of the connector body for sintering so that the first groove and the second groove on the upper quartz handle are matched with the first boss and the second boss of the connector body for sintering, and inserted into a first connecting through hole at the lower end of the connector body for sintering and a second connecting through hole at the upper part of the upper quartz handle through a bolt for locking.
Compared with the prior art, the utility model has the following advantages: through above-mentioned structure, have obvious advantage in the aspect of dual anti-drop, balanced atress etc. avoid causing because heavy weight or atress are uneven that the quartz guide rod splits or bolt fracture causes the root stick to drop and smash and wear the muffle tube.
Preferably, the connector kit for sintering comprises a cylindrical sleeve matched with the upper part of the connector body for sintering and a conical sleeve positioned at the top end of the cylindrical sleeve, the inner diameter of the conical sleeve is gradually reduced from bottom to top, the minimum inner diameter of the conical sleeve is matched with the outer diameter of the quartz guide rod, and an expansion joint is further formed in the surface of the connector kit for sintering.
Preferably, the connector body for sintering is further provided with reinforcing ribs protruding outwards on both sides of the second notch at the lower end thereof.
Preferably, the connector body for sintering and the plug are Si4N3The original connector material is improved from high-purity quartz glass to Si3N4Compared with the original sintering position, the sintering position of the Soot is lower, so that the integral sintering of the upper part of the Soot is better, and the effective sintering length of the optical fiber preform is increased finally.
Drawings
FIG. 1 is a schematic diagram of the sintering structure of the present invention;
FIG. 2 is a schematic diagram of an original sintered structure;
FIG. 3 is an axial view of the sintering assembly of the present invention;
the specific implementation mode is as follows:
the invention will be further described with respect to specific embodiments in conjunction with the following drawings:
examples
As shown in fig. 1 and 3, the optical fiber preform sintering connector comprises a quartz guide rod 1, a sintering connector body 10, an upper quartz handle 8 and a sintering connector kit 2, wherein the quartz guide rod 1 is cylindrical, an annular boss 3 is convexly arranged at the lower end of the quartz guide rod along the circumferential direction, the sintering connector kit 2 is of a hollow structure, a first notch 101 for accommodating the lower end of the quartz guide rod is arranged on one side of the upper end of the sintering connector body 10, the first notch 101 extends to the upper end of the sintering connector body, the first notch 101 is formed on the sintering connector body as a cylindrical cavity matched with the quartz guide rod, a step 9 is convexly arranged on the inner wall of the cavity at the first notch 101, the lower end of the quartz guide rod 1 is accommodated in the first notch 101 at the upper part of the sintering connector body, and the step 9 is matched with the boss 3 for limiting, the connector kit for sintering 2 is sleeved outside the quartz guide rod 1 and the connector body for sintering 10 and is matched with the connector body for sintering 10 and the quartz guide rod 1 for limiting through the hollow inner wall of the connector kit for sintering, namely, the boss 3 is limited through the step 9, the quartz guide rod is prevented from being separated from the upper part of the connector body for sintering, the upper part of the quartz guide rod 1 protrudes out of the connector kit for sintering 2, one side of the lower end of the connector body for sintering 10 is provided with a second notch 102 for accommodating the upper part of a quartz handle 8, the second notch 102 extends to the lower end part of the connector body for sintering, the inner wall of the second notch 102 is further provided with a first boss 6, a second boss 7 and a first connecting through hole 12 at intervals, and the first boss 6 and the second boss 7 are semi-annular bosses, the first connecting through hole 12 is perpendicular to the central axis of the connector body for sintering, the upper portion of the upper quartz handle 8 is also provided with a second connecting through hole 13 perpendicular to the direction of the central axis, the upper portion of the upper quartz handle 8 is circumferentially and concavely provided with a first groove 14 and a second groove 15 which are matched with the first boss and the second boss, the upper portion of the upper quartz handle 8 is inserted into a cylindrical cavity formed by the second notch of the connector body for sintering 10, so that the first groove and the second groove on the upper quartz handle are matched with the first boss and the second boss of the connector body for sintering, and are inserted into the first connecting through hole 12 at the lower end of the connector body for sintering and the second connecting through hole 13 at the upper portion of the upper quartz handle through a cylindrical bolt 15 for locking.
Specifically, connector external member 2 for sintering include with the column sleeve pipe of connector body upper portion adaptation for sintering and the taper sleeve pipe that is located column sleeve pipe top, the internal diameter of taper sleeve pipe reduces gradually from bottom to top, and its minimum internal diameter department and the external diameter adaptation of quartzy guide pin, an expansion joint has still been seted up on connector external member surface for sintering. Reinforcing ribs 4 are further arranged on two sides of the second notch 12 at the lower end of the connector body 10 for sintering in a protruding mode. The connector body 10 for sintering and the plug 15 are made of Si4N3And (4) preparing.
The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims.
Claims (4)
1. The utility model provides an optical fiber perform connector for sintering, includes quartz guide rod, sintering and uses connector body, goes up quartz handle and sintering and uses connector external member, the protruding annular boss that is equipped with of lower extreme of quartz guide rod, connector external member is hollow structure for the sintering, its characterized in that: the connector for sintering comprises a connector body for sintering, wherein one side of the upper end of the connector body for sintering is provided with a first notch for accommodating the lower end of a quartz guide rod, the first notch extends to the upper end part of the connector body for sintering, the inner wall of the first notch is provided with a step, the lower end of the quartz guide rod is accommodated in the first notch on the upper part of the connector body for sintering, the step is matched with the boss, a connector kit for sintering is sleeved outside the quartz guide rod and the connector body for sintering and is matched and limited with the connector body for sintering and the quartz guide rod through the hollow inner wall of the connector kit for sintering, the upper part of the quartz guide rod protrudes out of the connector kit for sintering, one side of the lower end of the connector body for sintering is provided with a second notch for accommodating the upper part of a quartz handle, and the second notch extends to the lower end part of the connector body for sintering, the inner wall of the second notch is further provided with a first boss, a second boss and a first connecting through hole at intervals, the first connecting through hole is perpendicular to the central axis of the connector body for sintering, the upper portion of the upper quartz handle is also provided with a second connecting through hole perpendicular to the direction of the central axis, a first groove and a second groove matched with the first boss and the second boss are circumferentially and concavely arranged on the upper quartz handle, the upper portion of the upper quartz handle is inserted into the second notch of the connector body for sintering, so that the first groove and the second groove on the upper quartz handle are matched with the first boss and the second boss of the connector body for sintering, and the first connecting through hole at the lower end of the connector body for sintering and the second connecting through hole at the upper portion of the upper quartz handle are inserted through a bolt for locking.
2. The connector for optical fiber preform sintering of claim 1, wherein: the connector external member for sintering include with the column sleeve pipe of connector body upper portion adaptation for sintering and be located the cone sleeve pipe on column sleeve pipe top, the internal diameter of cone sleeve pipe reduces from bottom to top gradually, and its minimum internal diameter department and the external diameter adaptation of quartz guide pin, an expansion joint has still been seted up on connector external member surface for sintering.
3. The connector for optical fiber preform sintering of claim 1, wherein: and reinforcing ribs are respectively arranged on two sides of the second notch at the lower end of the connector body for sintering in a protruding mode.
4. The connector for optical fiber preform sintering of claim 3, wherein: the connector body for sintering and the plug are Si4N3And (4) preparing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921291729.3U CN210394168U (en) | 2019-08-12 | 2019-08-12 | Connector for sintering optical fiber perform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921291729.3U CN210394168U (en) | 2019-08-12 | 2019-08-12 | Connector for sintering optical fiber perform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210394168U true CN210394168U (en) | 2020-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921291729.3U Active CN210394168U (en) | 2019-08-12 | 2019-08-12 | Connector for sintering optical fiber perform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210394168U (en) |
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2019
- 2019-08-12 CN CN201921291729.3U patent/CN210394168U/en active Active
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