Optical fiber clamp

Abstract

The optical fiber clamp comprises a clamping seat, a plurality of elastic clamping pipes and an extrusion mechanism, the clamping seat is provided with a plurality of extrusion channels, the extrusion channels extend linearly, the two ends of each extrusion channel penetrate through the clamping seat respectively, and the channel walls of the extrusion channels are conical surfaces; the elastic clamping pipes are in one-to-one correspondence with the extrusion channels, the outer walls of the elastic clamping pipes are conical surfaces matched with the corresponding extrusion channels, and the elastic clamping pipes are arranged in the corresponding extrusion channels in a sleeved mode; the interior of the elastic clamping tube is a passageway, the passageway is used for the penetration of a to-be-clamped optical fiber, the wall of the passageway is a cylindrical surface, and the diameter of the passageway is larger than that of the to-be-clamped optical fiber. The extrusion mechanism is arranged on the clamping base and used for extruding the elastic clamping pipe in the axial direction so that the elastic clamping pipe can move in the direction from the large-diameter end to the small-diameter end of the corresponding extrusion channel. The optical fiber clamp can solve the problem that a clamped optical fiber is easily separated from the clamp due to the fact that the axial tensile property of an existing optical fiber clamp is not ideal.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber clamping and fixing, and particularly relates to an optical fiber fixture. Background Art

[0002] In the wiring construction of an optical fiber communication system, in order to protect the fragile optical fiber in the pipe, the optical fiber riveting fixture is required to have good axial tensile performance. The existing optical fiber riveting fixtures generally include two symmetrically arranged semi-fixtures in the shape of hoops. The part of the inner surface of the semi-fixture for riveting is provided with polygonal rib grooves. The optical fiber to be clamped is coaxially arranged in the rib grooves, and then the two semi-hoops are clamped together to clamp the optical fiber to be clamped.

[0003] However, the above-mentioned type of optical fiber riveting fixture has poor tensile performance, and the riveted optical fiber is easily pulled off axially from the fixture, which cannot meet the requirements of the optical fiber riveting fixture for axial tensile performance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an optical fiber fixture, which can solve the problem that the existing optical fiber fixture has unsatisfactory axial tensile performance, resulting in the easy pulling-off of the clamped optical fiber from the fixture.

[0005] The utility model is realized by the following technical solutions:

[0006] An optical fiber fixture includes a clamp seat, the clamp seat is provided with a plurality of extrusion channels, the extrusion channels linearly extend and penetrate through the clamp seat at both ends respectively, and the channel wall of the extrusion channel is a conical surface; a plurality of elastic clamping tubes, the elastic clamping tubes correspond to the extrusion channels one by one, the outer wall of the elastic clamping tube is a conical surface matching the corresponding extrusion channel, and the elastic clamping tube is sleeved in the corresponding extrusion channel; the inside of the elastic clamping tube is a clamping channel, the clamping channel is used for threading the optical fiber to be clamped, the channel wall of the clamping channel is a cylindrical surface and the diameter is larger than the diameter of the optical fiber to be clamped; an extrusion mechanism, the extrusion mechanism is arranged on the clamp seat, and the extrusion mechanism is used for axially extruding the elastic clamping tube so that the elastic clamping tube moves along the direction from the large-diameter end to the small-diameter end of the corresponding extrusion channel.

[0007] Optionally, the clamp seat includes two symmetrically arranged semi-clamp seats, the same side of the two semi-clamp seats is axially hinged, and a buckle is arranged on the opposite side to enable the two semi-clamp seats to be closed.

[0008] Optionally, the elastic clamping tube is provided with an avoidance groove along any generatrix, and the width of the avoidance groove is smaller than the diameter of the optical fiber to be clamped.

[0009] Optionally, the inner wall of the elastic clamping tube is provided with convex ribs in a spiral shape.

[0010] Optionally, the extrusion mechanism includes a base, an extrusion member, and a pushing member; the extrusion member is disposed on one side of the clamping seat at the large-diameter end of the extrusion channel, and is slidably connected to the clamping seat, and the sliding direction is parallel to the axial direction of the extrusion channel. The extrusion member is used to extrude the end face of the large-diameter end of the elastic clamping tube; the base is disposed on one side of the clamping seat at the large-diameter end of the extrusion channel; the pushing member is disposed on the base, and the pushing member is used to push the extrusion member along the axial direction of the extrusion channel so that the extrusion member extrudes the elastic clamping tube.

[0011] Optionally, the extrusion member is cylindrical, the inner diameter of the extrusion member is larger than the diameter of the optical fiber to be clamped, and the outer diameter is smaller than the diameter at the middle position of the extrusion channel. The extrusion member is coaxially arranged with the extrusion channel; a plurality of limiting rods are uniformly arranged along the circumference of the extrusion member. The limiting rods are perpendicular to the end face of the extrusion member and are slidably inserted into the clamping seat so that the extrusion member is slidably connected to the clamping seat.

[0012] Optionally, a limiting groove is coaxially opened at the large-diameter end of the extrusion channel, and the diameter of the limiting groove is larger than the maximum diameter of the extrusion channel; a limiting edge extends outward from the end face of the end of the extrusion member away from the extrusion channel, and the diameter of the limiting edge matches the diameter of the limiting groove; the limiting rod is perpendicularly arranged on the limiting edge.

[0013] Optionally, the base is cylindrical, the base is coaxially sleeved outside the extrusion member, a substrate is sealed at the end of the base away from the clamping seat, and a hole is opened in the middle of the substrate. The diameter of the hole is larger than the inner diameter of the extrusion member; the pushing member is disposed on the substrate.

[0014] Optionally, the pushing member is a hydraulic cylinder, and the push rod of the pushing member perpendicularly abuts against the end face of the extrusion member.

[0015] Optionally, the pushing member is cylindrical, an external thread is provided on the outer wall of the pushing member, an internal thread is provided on the inner wall of the base, and the pushing member is coaxially screwed to the base; a plurality of balls are provided on the end face of the pushing member close to the clamping seat and contact and press against the end face of the extrusion member.

[0016] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0017] An optical fiber fixture provided by the utility model takes a clamp seat as the basis of the fixture, and a number of extrusion channels are opened thereon. The extrusion channels are linearly extended, and the channel walls are conical surfaces. On this basis, elastic clamping tubes with matching outer walls are arranged in each extrusion channel, a clamping channel is arranged in the elastic clamping tubes, and an extrusion mechanism is arranged on the clamp seat. When clamping, the optical fiber to be clamped is inserted into the clamping channel, and then the elastic clamping tube is axially extruded through the extrusion mechanism, so that it moves from the large-diameter end to the small-diameter end of the corresponding extrusion channel. During the movement, the conical channel walls of the extrusion channels will gradually squeeze the elastic clamping tube inward. Due to the elasticity of the elastic clamping tube, it will gradually shrink under the action of the extrusion force, so that the diameter of the clamping channel gradually decreases, and the channel walls of the clamping channel gradually approach and contact the side walls of the optical fiber to be clamped. After contact, the pressure between the two gradually increases, so that the friction force between the two gradually increases, so that the optical fiber to be clamped is effectively clamped by the elastic clamping tube. After clamping, the friction force between the two gradually increases under the action of the pressure, so as to effectively improve the axial tensile performance. Through the mutual cooperation of the above features, the optical fiber fixture can effectively solve the problem that the existing optical fiber fixture has an unsatisfactory axial tensile performance, resulting in the optical fiber clamped being easily pulled off from the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation to the embodiments of the present utility model. In the drawings:

[0019] Figure 1 is a schematic diagram of the semi-clamp seat of the optical fiber fixture provided by the embodiment of the present utility model when it is closed;

[0020] Figure 2 is a schematic diagram of the semi-clamp seat of the optical fiber fixture provided by the embodiment of the present utility model when it is opened;

[0021] Figure 3 is a schematic diagram of the extrusion mechanism of the optical fiber fixture provided by the embodiment of the present utility model after inward extrusion;

[0022] Figure 4 is a top view schematic diagram of the elastic clamping tube of the optical fiber fixture provided by the embodiment of the present utility model;

[0023] Figure 5 is a side view schematic diagram of the elastic clamping tube of the optical fiber fixture provided by the embodiment of the present utility model.

[0024] Marks in the drawings and corresponding component names:

[0025] 10 - Clamping seat; 101 - Half clamping seat; 102 - Snap; 11 - Extrusion channel; 111 - Limit groove; 20 - Elastic clamping tube; 21 - Clamping channel; 22 - Avoidance groove; 23 - Convex rib; 30 - Base; 301 - Substrate; 31 - Extrusion member; 311 - Limit rod; 312 - Limit edge; 32 - Pushing member. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the embodiments and the accompanying drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and shall not be construed as a limitation to the present utility model.

[0027] Embodiment

[0028] Please refer to Figures 1 to 5 , this embodiment provides an optical fiber fixture, including a clamping seat 10. The clamping seat 10 is provided with a plurality of extrusion channels 11. The extrusion channels 11 extend linearly and penetrate through the clamping seat 10 at both ends. The channel wall of the extrusion channel 11 is a conical surface. Second, it includes a plurality of elastic clamping tubes 20. The elastic clamping tubes 20 correspond to the extrusion channels 11 one by one. The outer wall of the elastic clamping tube 20 is a conical surface matching the corresponding extrusion channel 11. The elastic clamping tube 20 is sleeved in the corresponding extrusion channel 11. The inside of the elastic clamping tube 20 is a clamping channel 21. The clamping channel 21 is used for threading the optical fiber to be clamped. The channel wall of the clamping channel 21 is a cylindrical surface and has a diameter larger than the diameter of the optical fiber to be clamped. Third, it includes an extrusion mechanism. The extrusion mechanism is arranged on the clamping seat 10. The extrusion mechanism is used to axially extrude the elastic clamping tube 20 so that the elastic clamping tube 20 moves in the direction from the large-diameter end to the small-diameter end of the corresponding extrusion channel 11.

[0029] The optical fiber fixture provided in this embodiment has a clamping seat 10 as the basis of the fixture. A number of extrusion channels 11 are opened thereon. The extrusion channels 11 are linearly extended, and the channel walls are conical surfaces. On this basis, elastic clamping tubes 20 with matching outer walls are arranged in each extrusion channel 11. A clamping channel 21 is arranged in the elastic clamping tube 20, and an extrusion mechanism is arranged on the clamping seat 10. When clamping, the optical fiber to be clamped is inserted into the clamping channel 21, and then the elastic clamping tube 20 is axially extruded through the extrusion mechanism, so that it moves from the large-diameter end to the small-diameter end of the corresponding extrusion channel 11. During the movement, the conical channel walls of the extrusion channels 11 will gradually squeeze the elastic clamping tube 20 inward. Since the elastic clamping tube 20 has elasticity, it will gradually shrink under the action of the extrusion force, so that the diameter of the clamping channel 21 gradually decreases, and the channel walls of the clamping channel 21 gradually approach and contact the side wall of the optical fiber to be clamped. After contact, the pressure between the two gradually increases, so that the friction force between the two gradually increases, so that the optical fiber to be clamped is effectively clamped by the elastic clamping tube 20. And after clamping, the friction force between the two gradually increases under the action of the pressure, so as to effectively improve the axial tensile performance. Moreover, when the optical fiber to be clamped is axially pulled, it also synchronously pulls the elastic clamping tube 20, causing it to further shrink, thereby further increasing the friction force between the two. Through the mutual cooperation of the above features, the optical fiber fixture can effectively solve the problem that the existing optical fiber fixture has an unsatisfactory axial tensile performance, resulting in the optical fiber clamped being easily pulled off from the fixture.

[0030] In order to facilitate the threading of the optical fiber to be clamped, the clamping seat 10 includes two symmetrically arranged half-clamping seats 101. The two half-clamping seats 101 are axially hinged on the same side, and a buckle 102 is provided on the opposite side, so that the two half-clamping seats 101 can be closed.

[0031] With the above settings, during use, the half-clamping seat 101 is opened, the elastic clamping tube 20 is taken out, and then the elastic clamping tube 20 is sleeved outside the optical fiber to be clamped, and then the elastic clamping tube 20 is put back into the extrusion channel 11 and the half-clamping seat 101 is closed.

[0032] In order to further facilitate the threading of the optical fiber to be clamped, the elastic clamping tube 20 is provided with an avoidance groove 22 along any generatrix, and the width of the avoidance groove 22 is smaller than the diameter of the optical fiber to be clamped.

[0033] With the above settings, it is only necessary to open the half-clamping seat 101, and then press the optical fiber to be clamped into the elastic clamping tube 20 along the avoidance groove 22.

[0034] In order to further increase the friction force between the optical fiber to be clamped and the elastic clamping tube 20, the inner wall of the elastic clamping tube 20 is provided with convex ribs 23 in a spiral shape.

[0035] To further explain the specific structure of the extrusion mechanism, the extrusion mechanism includes a base 30, an extrusion member 31, and a pushing member 32; the extrusion member 31 is disposed on one side of the clamping seat 10 at the large-diameter end of the extrusion channel 11, and is slidably connected to the clamping seat 10, and the sliding direction is parallel to the axial direction of the extrusion channel 11. The extrusion member 31 is used to extrude the end face of the large-diameter end of the elastic clamping tube 20; the base 30 is disposed on one side of the clamping seat 10 at the large-diameter end of the extrusion channel 11; the pushing member 32 is disposed on the base 30, and the pushing member 32 is used to push the extrusion member 31 along the axial direction of the extrusion channel 11 so that the extrusion member 31 extrudes the elastic clamping tube 20.

[0036] To further optimize the extrusion effect of the extrusion member 31, the extrusion member 31 is cylindrical, the inner diameter of the extrusion member 31 is larger than the diameter of the optical fiber to be clamped, and the outer diameter is smaller than the diameter at the middle position of the extrusion channel 11. The extrusion member 31 is coaxially arranged with the extrusion channel 11; a plurality of limiting rods 311 are uniformly arranged along the circumference of the extrusion member 31. The limiting rods 311 are perpendicular to the end face of the extrusion member 31 and are slidably inserted into the clamping seat 10 so that the extrusion member 31 is slidably connected to the clamping seat 10.

[0037] To prevent the extrusion member 31 from being over-extruded, a limiting groove 111 is coaxially opened at the large-diameter end of the extrusion channel 11, and the diameter of the limiting groove 111 is larger than the maximum diameter of the extrusion channel 11; a limiting edge 312 extends outward from the end face of the end of the extrusion member 31 away from the extrusion channel 11, and the diameter of the limiting edge 312 matches the diameter of the limiting groove 111; the limiting rods 311 are perpendicularly arranged on the limiting edge 312.

[0038] To further explain the specific structure of the base 30, the base 30 is cylindrical, the base 30 is coaxially sleeved outside the extrusion member 31, a substrate 301 is sealed at one end of the base 30 away from the clamping seat 10, a hole is opened in the middle of the substrate 301, and the diameter of the hole is larger than the inner diameter of the extrusion member 31; the pushing member 32 is disposed on the substrate 301.

[0039] Optionally, the pushing member 32 is a hydraulic cylinder, and the push rod of the pushing member 32 perpendicularly abuts against the end face of the extrusion member 31.

[0040] Optionally, the pushing member 32 is cylindrical, an external thread is provided on the outer wall of the pushing member 32, an internal thread is provided on the inner wall of the base 30, and the pushing member 32 is coaxially screwed to the base 30; a plurality of balls are provided on the end face of the pushing member 32 close to the clamping seat 10 and are in contact with and extrude the end face of the extrusion member 31.

[0041] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present utility model. It should be understood that the above description is only for the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An optical fiber fixture, characterized in that, Comprising: A clamping seat (10), the clamping seat (10) is provided with a plurality of extrusion channels (11), the extrusion channels (11) extend linearly, and both ends penetrate the clamping seat (10) respectively, and the channel wall of the extrusion channel (11) is a conical surface; A plurality of elastic clamping tubes (20), the elastic clamping tubes (20) correspond to the extrusion channels (11) one by one, the outer wall of the elastic clamping tube (20) is a conical surface matching the corresponding extrusion channel (11), and the elastic clamping tube (20) is sleeved in the corresponding extrusion channel (11); the inside of the elastic clamping tube (20) is a clamping channel (21), and the clamping channel (21) is used for threading the optical fiber to be clamped, the channel wall of the clamping channel (21) is a cylindrical surface, and the diameter is larger than the diameter of the optical fiber to be clamped; An extrusion mechanism, the extrusion mechanism is arranged on the clamping seat (10), and the extrusion mechanism is used for axially extruding the elastic clamping tube (20) so that the elastic clamping tube (20) moves along the large-diameter end to the small-diameter end of the corresponding extrusion channel (11).

2. The optical fiber fixture according to claim 1, wherein The clamping seat (10) includes two symmetrically arranged half-clamping seats (101), the same side of the two half-clamping seats (101) is axially hinged, and a buckle (102) is arranged on the opposite side, so that the two half-clamping seats (101) can be closed.

3. The optical fiber fixture according to claim 2, characterized in that, The elastic clamping tube (20) is provided with an avoidance groove (22) along any generatrix, and the width of the avoidance groove (22) is smaller than the diameter of the optical fiber to be clamped.

4. The optical fiber fixture according to claim 3, characterized in that, The inner wall of the elastic clamping tube (20) is provided with convex ribs (23) in a spiral shape.

5. The optical fiber fixture according to any one of claims 1-4, characterized in that, The extrusion mechanism includes a base (30), an extrusion member (31) and a pushing member (32); The extrusion member (31) is arranged on one side of the clamping seat (10) at the large-diameter end of the extrusion channel (11), and is slidably connected to the clamping seat (10), and the sliding direction is parallel to the axial direction of the extrusion channel (11), and the extrusion member (31) is used for extruding the end surface of the large-diameter end of the elastic clamping tube (20); The base (30) is arranged on one side of the clamping seat (10) at the large-diameter end of the extrusion channel (11); The pushing member (32) is arranged on the base (30), and the pushing member (32) is used for axially pushing the extrusion member (31) along the extrusion channel (11) so that the extrusion member (31) extrudes the elastic clamping tube (20).

6. The optical fiber fixture according to claim 5, wherein The extrusion member (31) is in a cylindrical shape, the inner diameter of the extrusion member (31) is larger than the diameter of the optical fiber to be clamped, the outer diameter is smaller than the diameter at the middle position of the extrusion channel (11), and the extrusion member (31) is coaxially arranged with the extrusion channel (11); The extrusion member (31) is evenly provided with a plurality of limiting rods (311) along the circumference, the limiting rods (311) are perpendicular to the end surface of the extrusion member (31), and are slidably inserted into the clamping seat (10) so that the extrusion member (31) is slidably connected to the clamping seat (10).

7. The optical fiber fixture according to claim 6, wherein, A limiting groove (111) is coaxially opened at the large-diameter end of the extrusion channel (11), and the diameter of the limiting groove (111) is larger than the maximum diameter of the extrusion channel (11); One end of the extrusion part (31) away from the extrusion channel (11) extends outward to form a limiting edge (312), and the diameter of the limiting edge (312) matches the diameter of the limiting groove (111); The limiting rod (311) is vertically arranged on the limiting edge (312).

8. The optical fiber fixture according to claim 7, characterized in that, The base (30) is cylindrical, the base (30) is coaxially sleeved outside the extrusion part (31), one end of the base (30) away from the clamping seat (10) is sealed with a base plate (301), a hole is formed in the middle of the base plate (301), and the diameter of the hole is larger than the inner diameter of the extrusion part (31); The pushing part (32) is arranged on the base plate (301).

9. The optical fiber fixture according to claim 8, wherein, The pushing part (32) is a hydraulic cylinder, and the push rod of the pushing part (32) vertically abuts against the end face of the extrusion part (31).

10. The optical fiber fixture according to claim 8, characterized in that, The pushing part (32) is cylindrical, an external thread is arranged on the outer wall of the pushing part (32), an internal thread is arranged on the inner wall of the base (30), and the pushing part (32) is coaxially screwed with the base (30); A plurality of balls are arranged on the end face of the pushing part (32) close to the clamping seat (10), and are in contact with and press against the end face of the extrusion part (31).

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