Vacuumizing device based on clustered optical fiber melting process

Abstract

The invention discloses a vacuumizing device based on a clustered optical fiber fusion process, and relates to the technical field of clustered optical fibers. The device comprises a quartz sleeve, an optical fiber bundle and a vacuumizing device body, the vacuumizing device body comprises a sealing end mechanism and a vacuumizing end mechanism, the optical fiber bundle penetrates through the quartz sleeve and forms a short fiber section, one end of the vacuumizing end mechanism is arranged at the end, close to the short fiber section, of the quartz sleeve, and the sealing end mechanism is arranged at the other end of the quartz sleeve. The sealing end mechanism is composed of a set of half sleeve bodies which are symmetrically arranged, and the two half sleeve bodies are connected with each other through a fastener. By designing the novel sealing end mechanism and the vacuumizing end mechanism to form the vacuumizing device and the tool, sealing and vacuumizing between the optical fiber bundle and the two ends of the quartz sleeve are facilitated, operation is facilitated, vacuumizing operation between the optical fiber bundle and the quartz sleeve can be achieved, the melting process of the optical fiber bundle is ensured, the problems of cracking and degumming of glued bundled optical fibers are avoided, and the quality of the optical fiber bundle is improved. And the optical fiber quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of optical fiber bundles, and in particular relates to a vacuum pumping device based on a bundled optical fiber melting process. Background Art

[0002] Existing bundled optical fibers are mainly bonded with inorganic or organic glue to encapsulate the optical fiber bundle into a desired shape. However, during the use of the bonded bundled optical fiber, the long-term passage of high-power laser light will cause scattering and reflection at the end face. Part of the high-power laser is reflected back to the glue connection of the optical fiber bundle, which will cause cracking and debonding problems on the end face of the bundled optical fiber, thereby causing damage.

[0003] In view of the above phenomenon, a melting process can be selected to melt the optical fiber bundle and the newly added quartz tube into a whole, which can avoid the glued bundled optical fiber and thus solve the problem of cracking and debonding. The vacuum in the melting process can apply a shrinkage force to the quartz tube for automatic shrinkage and melting after subsequent softening. However, since the optical fiber bundle is composed of several bare optical fibers, it is not conducive to setting a vacuum device between the two ends of the quartz tube and the optical fiber bundle, and the existing vacuum device will have the problem of incompatibility.

[0004] Therefore, designing a vacuum pumping device that is convenient for vacuuming the quartz tube and the optical fiber bundle is a problem that needs to be solved by the personnel in this field. Summary of the invention

[0005] The purpose of the present invention is to provide a vacuum pumping device based on the melting process of bundled optical fibers. By designing a new sealing end mechanism and a vacuum pumping end mechanism to form a vacuum pumping device and a tooling, it is convenient to seal and vacuum pump between the two ends of the optical fiber bundle and the quartz sleeve, which is conducive to operation and can realize the vacuum pumping operation between the two, ensuring the melting process of the optical fiber bundle, avoiding cracking and debonding problems of glued bundled optical fibers, thereby improving the quality of the optical fiber.

[0006] To solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a vacuum pumping device based on a bundled optical fiber melting process, comprising a quartz sleeve, an optical fiber bundle and a vacuum pumping device body; The vacuum pumping device body comprises a sealing end mechanism and a vacuum pumping end mechanism; The optical fiber bundle passes through the quartz sleeve and forms a short fiber segment, one end of the vacuum end mechanism is arranged at one end of the quartz sleeve close to the short fiber segment, and the sealing end mechanism is arranged at the other end of the quartz sleeve; The sealing end mechanism is composed of a group of symmetrically arranged half-shell bodies, the two half-shell bodies are connected to each other by fasteners, a first sealing bag with a semicircular structure is fixed in the half-shell body, and a first air inlet passage communicating with the first sealing bag is provided on the half-shell body; The vacuum end mechanism comprises an air cavity shell with an annular structure, a vacuum end tube is connected to the air cavity shell, a second sealing bag with an annular structure is fixed at the inner hole of the air cavity shell, and a second air inlet passage connected with the second sealing bag is provided in the air cavity shell; The end of the half sleeve body and the end of the air cavity shell are both connected to a clamping sleeve through a tapered portion, the gap of the end of the quartz sleeve is arranged in the clamping sleeve, and the tapered portion of the air cavity shell is provided with a vacuum port connected to the air cavity shell; The bottom of the sealing end mechanism is movably matched with a fixed seat, and the bottom of the vacuum end mechanism is movably matched with a telescopic seat, and the telescopic direction of the telescopic seat is parallel to the quartz sleeve.

[0007] Furthermore, the optical fiber bundle is composed of a plurality of bare optical fibers, and the first sealing capsule and the second sealing capsule are embedded in the gap at the outer edge of the optical fiber bundle after being expanded.

[0008] Furthermore, assembly columns are fixed to the circumferential side surface of a half sleeve body and the circumferential side surface of the air cavity shell that constitute the sealing end mechanism, and the ends of the assembly columns are provided with rounded corners or chamfers.

[0009] Furthermore, both sides of the half-shell are provided with mounting openings, the two half-shells are connected to each other through fasteners and the mounting openings, and the mounting openings and the first air inlet passage and the assembly column are misaligned.

[0010] Furthermore, the fixing seat comprises a first base of an inverted T-shaped structure, a first positioning sleeve is provided on one side of the first base, and the assembly column of the sealing end mechanism is penetrated and arranged in the first positioning sleeve.

[0011] Furthermore, the telescopic seat includes a second base, the structural features of the second base are consistent with those of the first base, a telescopic tube is fixed on one side of the second base, a locking piece is provided at the connection between the inner rod and the tube sleeve of the telescopic tube, a second positioning sleeve is fixed to the end of the telescopic tube, and the assembly column on the vacuum end mechanism is arranged through the second positioning sleeve.

[0012] Furthermore, a reinforcement sleeve is provided on one side of the second base, the rear end of the telescopic tube is fixed in the reinforcement sleeve, and a reinforcing rib is provided between the reinforcement sleeve and the second base.

[0013] Furthermore, recessed portions are provided at the inner hole of the half-sleeve body and the inner hole of the air cavity shell, the first sealing bag is embedded and fixed in the recessed portion of the half-sleeve body, and the second sealing bag is embedded and fixed in the recessed portion of the air cavity shell.

[0014] Furthermore, the vacuum end pipe is connected to a vacuum pipeline, and the vacuum pipeline is provided with an electronic pressure gauge.

[0015] Furthermore, a step surface is formed between the tapered portion and the connection point of the clamping sleeve, and the end surface of the quartz sleeve is in contact with the step surface.

[0016] The present invention has the following beneficial effects: The present invention designs a novel sealing end mechanism and a vacuuming end mechanism to form a vacuuming device and a tooling, which facilitates the sealing and vacuuming between the two ends of the optical fiber bundle and the quartz sleeve, is conducive to operation and can realize the vacuuming operation between the two, ensures the melting process of the optical fiber bundle, avoids the cracking and debonding problems of the glued and bundled optical fibers, and thus improves the quality of the optical fiber.

[0017] The present invention can provide a larger operating space for the entire quartz sleeve while ensuring the position stability of the optical fiber bundle and the quartz sleeve by designing a novel sealing end mechanism and a vacuum end mechanism in conjunction with a fixed seat and a telescopic seat, thereby facilitating the subsequent heating and melting of the quartz sleeve by an oxyhydrogen flame head.

[0018] The present invention can adjust the distance between the sealing end mechanism and the vacuum end mechanism through the design of the telescopic seat, so that it can be suitable for the use of quartz sleeves of different lengths, greatly improving the scope of application.

[0019] The present invention can form a vacuum space at the end of the quartz sleeve through the design of the tapered part and the tube clamping sleeve on the sealing end mechanism and the vacuum end mechanism, without affecting the subsequent melting deformation of the quartz sleeve, thereby ensuring the melting effect of the quartz sleeve.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a vacuum pumping device based on a bundled optical fiber melting process of the present invention; Figure 2 It is a structural cross-sectional view of the present invention; Figure 3 It is a structural schematic diagram of the half sleeve after the assembly column is installed on the sealing end mechanism; Figure 4 It is a structural schematic diagram of the vacuum end mechanism; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-quartz sleeve, 2-optical fiber bundle, 3-sealing end mechanism, 4-vacuum end mechanism, 5-fixed seat, 6-telescopic seat, 201-short fiber segment, 301-half sleeve, 302-first sealing capsule, 303-first air inlet passage, 304-tapered portion, 305-tube sleeve, 306-installation port, 307-recessed portion, 308-step surface, 401-air cavity shell, 402-vacuum end tube, 403-second sealing capsule, 404-second air inlet passage, 405-vacuum port, 406-assembly column, 501-first base, 502-first positioning sleeve, 601-second base, 602-telescopic tube, 603-locking piece, 604-second positioning sleeve, 605-reinforcement sleeve, 606-strengthening rib. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-4 As shown, the present invention is a vacuum pumping device based on a bundled optical fiber melting process, comprising a quartz sleeve 1, an optical fiber bundle 2 and a vacuum pumping device body; The vacuum device body includes a sealing end mechanism 3 and a vacuum end mechanism 4; The optical fiber bundle 2 passes through the quartz sleeve 1 and forms a short fiber segment 201. One end of the vacuum end mechanism 4 is arranged at one end of the quartz sleeve 1 close to the short fiber segment 201, and the sealing end mechanism 3 is arranged at the other end of the quartz sleeve 1. The sealing end mechanism 3 is composed of a group of symmetrically arranged half-casings 301, the two half-casings 301 are connected to each other by fasteners, a first sealing bag 302 of a semicircular structure is fixed in the half-casing 301, and a first air inlet passage 303 communicating with the first sealing bag 302 is provided on the half-casing 301; The vacuum end mechanism 4 comprises an air cavity shell 401 of an annular structure, to which a vacuum end tube 402 is connected, a second sealing bag 403 of an annular structure is fixed at the inner hole of the air cavity shell 401, and a second air inlet passage 404 communicating with the second sealing bag 403 is provided in the air cavity shell 401; The end of the half sleeve 301 and the end of the air cavity shell 401 are both connected to a clamping sleeve 305 through a tapered portion 304. The end gap of the quartz sleeve 1 is set in the clamping sleeve 305. The tapered portion 304 of the air cavity shell 401 is provided with a vacuum port 405 connected to the air cavity shell 401. A fixed seat 5 is movably matched at the bottom of the sealing end mechanism 3 , and a telescopic seat 6 is movably matched at the bottom of the vacuum end mechanism 4 . The telescopic direction of the telescopic seat 6 is parallel to the quartz sleeve 1 .

[0025] Among them Figure 2 As shown, the optical fiber bundle 2 is composed of a plurality of bare optical fibers, and the first sealing capsule 302 and the second sealing capsule 403 are embedded in the gap at the outer edge of the optical fiber bundle 2 after being expanded.

[0026] Among them Figure 1-4 As shown, the side surfaces of a half casing 301 and the air chamber shell 401 constituting the sealing end mechanism 3 are fixed with assembly columns 406, and the ends of the assembly columns 406 are provided with rounded corners or chamfers.

[0027] Among them Figure 1 and Figure 3 As shown, both sides of the half-casing 301 are provided with mounting openings 306 , and the two half-casings 301 are connected to each other through fasteners and the mounting openings 306 , and the mounting openings 306 and the first air inlet passage 303 and the assembly column 406 are misaligned.

[0028] Among them Figure 1 As shown, the fixing seat 5 includes a first base 501 of an inverted T-shaped structure, a first positioning sleeve 502 is provided on one side of the first base 501 , and the assembly column 406 of the sealing end mechanism 3 is penetrated and arranged in the first positioning sleeve 502 .

[0029] Among them Figure 1 As shown, the telescopic seat 6 includes a second base 601. The second base 601 has the same structural features as the first base 501. A telescopic tube 602 is fixed on one side of the second base 601. A locking piece 603 is provided at the connection between the inner rod and the tube sleeve of the telescopic tube 602. A second positioning sleeve 604 is fixed at the end of the telescopic tube 602. The assembly column 406 on the vacuum end mechanism 4 is arranged through the second positioning sleeve 604.

[0030] Among them Figure 1 As shown, a reinforcement sleeve 605 is provided on one side of the second base 601 , the rear end of the telescopic tube 602 is fixed in the reinforcement sleeve 605 , and a reinforcing rib 606 is provided between the reinforcement sleeve 605 and the second base 601 .

[0031] Among them Figure 2-3 As shown, a recess 307 is provided at the inner hole of the half-shell 301 and the inner hole of the air cavity shell 401 , the first sealing bag 302 is embedded and fixed in the recess 307 of the half-shell 301 , and the second sealing bag 403 is embedded and fixed in the recess 307 of the air cavity shell 401 .

[0032] The vacuum end tube 402 is connected to a vacuum pipeline, and an electronic pressure gauge is provided on the vacuum pipeline.

[0033] Among them Figure 2-4 As shown, a step surface 308 is formed between the connection between the tapered portion 304 and the clamping sleeve 305 , and the end surface of the quartz sleeve 1 is in contact with the step surface 308 .

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vacuum pumping device based on a bundled optical fiber melting process, characterized in that: It comprises a quartz sleeve (1), an optical fiber bundle (2) and a vacuum device body; The vacuum pumping device body comprises a sealing end mechanism (3) and a vacuum pumping end mechanism (4); The optical fiber bundle (2) penetrates the quartz sleeve (1) to form a short fiber segment (201), one end of the vacuum end mechanism (4) is arranged at one end of the quartz sleeve (1) close to the short fiber segment (201), and the sealing end mechanism (3) is arranged at the other end of the quartz sleeve (1); The sealing end mechanism (3) is composed of a group of symmetrically arranged half-shell bodies (301), the two half-shell bodies (301) being connected to each other via fasteners, a first sealing bag (302) of a semicircular structure being fixed inside the half-shell body (301), and a first air intake passage (303) communicating with the first sealing bag (302) being provided on the half-shell body (301); The vacuum end mechanism (4) comprises an air cavity shell (401) of an annular structure, a vacuum end tube (402) is connected to the air cavity shell (401), a second sealing bag (403) of an annular structure is fixed at the inner hole of the air cavity shell (401), and a second air inlet passage (404) in communication with the second sealing bag (403) is provided in the air cavity shell (401); The end of the half sleeve (301) and the end of the air cavity shell (401) are both connected to a clamping sleeve (305) via a conical portion (304); the end gap of the quartz sleeve (1) is arranged in the clamping sleeve (305); and the conical portion (304) of the air cavity shell (401) is provided with a vacuum port (405) that is in communication with the air cavity shell (401); The bottom of the sealing end mechanism (3) is movably matched with a fixed seat (5), and the bottom of the vacuum end mechanism (4) is movably matched with a telescopic seat (6), and the telescopic direction of the telescopic seat (6) is parallel to the quartz sleeve (1).

2. A vacuum pumping device based on a bundled optical fiber melting process according to claim 1, characterized in that: The optical fiber bundle (2) is composed of a plurality of bare optical fibers, and the first sealing capsule (302) and the second sealing capsule (403) are embedded in the gap at the outer edge of the optical fiber bundle (2) after being expanded.

3. A vacuum pumping device based on a bundled optical fiber melting process according to claim 1, characterized in that: Assembly columns (406) are fixed to the circumferential side surface of a half sleeve (301) and the circumferential side surface of the air cavity shell (401) constituting the sealing end mechanism (3), and the ends of the assembly columns (406) are provided with rounded corners or chamfers.

4. A vacuum pumping device based on the bundled optical fiber melting process according to claim 3, characterized in that: Both sides of the half-sleeve (301) are provided with mounting openings (306); the two half-sleeves (301) are connected to each other via fasteners and the mounting openings (306); the mounting openings (306) and the first air intake passage (303) are misaligned with the assembly column (406).

5. The vacuum pumping device based on the bundled optical fiber melting process according to claim 3 is characterized in that: The fixing seat (5) comprises a first base (501) of an inverted T-shaped structure, a first positioning sleeve (502) is provided on one side of the first base (501), and an assembly column (406) of the sealing end mechanism (3) is arranged through the first positioning sleeve (502).

6. A vacuum pumping device based on the bundled optical fiber melting process according to claim 5, characterized in that: The telescopic seat (6) comprises a second base (601), the second base (601) having the same structural features as the first base (501), a telescopic tube (602) being fixed on one side of the second base (601), a locking piece (603) being provided at the connection between the inner rod and the tube sleeve of the telescopic tube (602), a second positioning sleeve (604) being fixed at the end of the telescopic tube (602), and an assembly column (406) on the vacuum end mechanism (4) being arranged through the second positioning sleeve (604).

7. A vacuum pumping device based on the bundled optical fiber melting process according to claim 6, characterized in that: A reinforcement sleeve (605) is provided on one side of the second base (601), the rear end of the telescopic tube (602) is fixed in the reinforcement sleeve (605), and a reinforcement rib (606) is provided between the reinforcement sleeve (605) and the second base (601).

8. The vacuum pumping device based on the bundled optical fiber melting process according to claim 1 is characterized in that: A recessed portion (307) is provided at the inner hole of the half-sleeve (301) and the inner hole of the air cavity shell (401); the first sealing bag (302) is embedded and fixed in the recessed portion (307) of the half-sleeve (301); and the second sealing bag (403) is embedded and fixed in the recessed portion (307) of the air cavity shell (401).

9. The vacuum pumping device based on the bundled optical fiber melting process according to claim 1, characterized in that: The vacuum end pipe (402) is connected to a vacuum pipeline, and an electronic pressure gauge is provided on the vacuum pipeline.

10. The vacuum pumping device based on the bundled optical fiber melting process according to claim 1, characterized in that: A step surface (308) is formed between the conical portion (304) and the tube sleeve (305) at the connection point, and the end surface of the quartz sleeve (1) is in contact with the step surface (308).

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