A fiber preform hanging device

Abstract

The utility model relates to optical fiber preform technical field proposes a kind of optical fiber preform suspension device, including suspension head, including preform body, the top of preform body is connected with connecting rod, the top of connecting rod is equipped with anti-drop head, the front end of suspension head is equipped with the anti-drop slot matched with anti-drop head and the through slot matched with connecting rod, the front end of suspension head is rotatably connected with protective cover, the inside of suspension head is equipped with two matched control grooves, four oblique through holes are equipped on the inner side wall of two control grooves, the inside of two control grooves is rotatably connected with threaded rod, two threaded rods are all threadedly connected with moving plate, the bottom of two moving plates is rotatably connected with two connecting arms, the bottom of four connecting arms is rotatably connected with bracing bar, one end of four bracing bars is all connected with the clamping plate matched with anti-drop head, to this convenient for the preform of different diameter to be hung, reach the purpose of improving equipment applicability.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber preform technology, specifically to an optical fiber preform suspension device. Background Technology

[0002] Optical fiber preforms are quartz glass rods with a specific refractive index profile used to manufacture optical fibers. During the production process, the preforms need to undergo processes such as deposition, testing, sintering, and degassing. The preforms need to be suspended during the transfer, sintering, annealing, and subsequent fiber drawing processes using the unloading arm.

[0003] A search revealed a patent publication number CN217732975U published on November 4, 2022, for a fiber optic preform suspension device. The device is broadly described as including: an adapter with a first channel at one end and a second channel inside the adapter, the second channel communicating with the first channel; a preform handle with a diameter-changing boss that is engaged within the second channel; two sets of first pin holes symmetrically arranged at one end of the adapter, the first pin holes communicating with the first channel; and two sets of second pin holes arranged on the preform handle, with pins engaged within both the second and first pin holes.

[0004] While the aforementioned existing technical solutions can effectively prevent the preform from slipping during the sintering process, the device is not convenient for suspending preforms of different diameters, which reduces the applicability of the equipment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an optical fiber preform suspension device to solve the problem mentioned in the background technology that it is inconvenient to suspend preforms of different diameters, thus reducing the applicability of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an optical fiber preform suspension device, comprising a suspension head, a preform body, a connecting rod fixedly connected to the top of the preform body, an anti-detachment head at the top of the connecting rod, an anti-detachment groove cooperating with the anti-detachment head and a through groove cooperating with the connecting rod at the front end of the suspension head, a protective cover rotatably connected to the front end of the suspension head, two elastic buckles at the bottom end of the protective cover, two locking grooves cooperating with the elastic buckles at the bottom end of the suspension head, and two cooperating control grooves inside the suspension head. The inner walls of the two control slots have four oblique through holes facing the center of the lower inner wall of the anti-detachment slot. Threaded rods are rotatably connected inside each control slot. The tops of the two threaded rods pass through the control slots and are connected to drive wheels. A drive belt is provided between the two drive wheels. A rotating handle is provided on each drive wheel. Moving plates are threadedly connected to the two threaded rods. Two connecting arms are rotatably connected to the bottom of each of the two moving plates. Support rods that pass through the oblique through holes are rotatably connected to the bottom of each of the four connecting arms. A clamping plate that cooperates with the anti-detachment head is fixedly connected to one end of each of the four support rods.

[0007] By adopting the above technical solution, the protective cover is opened, and the anti-detachment head is inserted into the anti-detachment groove. At this time, the connecting rod is inserted into the through groove. Rotating the rotating handle drives the transmission wheel to rotate. The transmission wheel cooperates with the transmission belt to drive the two threaded rods to rotate synchronously, thereby driving the two moving plates to move synchronously. The moving plates drive the connecting arm and the support rod to move, so that the support rod moves along the inclined through hole, thereby causing the support rod to drive the clamping plate to move, so that one end of the four clamping plates simultaneously presses against the anti-detachment head. This facilitates the equipment to clamp and fix anti-detachment heads of different specifications, thereby effectively preventing the preform from slipping during the sintering process. This also facilitates the suspension of preforms of different diameters, thereby improving the applicability of the equipment.

[0008] Optionally, each of the four clamping plates has an anti-slip pad at the end near the anti-slip head.

[0009] By adopting the above technical solution, the anti-slip pad is used to increase the friction between the clamping plate and the anti-detachment head, thereby improving the stability of the equipment.

[0010] Optionally, the lower inner sidewall of the anti-detachment groove is provided with a positioning groove, and the bottom end of the anti-detachment head is provided with a positioning block that cooperates with the positioning groove.

[0011] By adopting the above technical solution, the positioning groove and the positioning block cooperate to perform preliminary positioning of the anti-detachment head, so as to facilitate the equipment to clamp and fix the anti-detachment head, thereby improving the stability of the equipment.

[0012] Optionally, a receiving groove is provided on each of the two inner sidewalls of the through groove, and a limiting plate is provided inside each of the two receiving grooves. Multiple evenly distributed springs are provided between each of the two limiting plates and the receiving groove.

[0013] By adopting the above technical solution, when the connecting rod is inside the through groove, the spring pushes the limiting plate, so that the two limiting plates cooperate to clamp and limit the connecting rod, reducing the probability of the connecting plate shaking, thereby improving the stability of the equipment.

[0014] Optionally, both of the limiting plates are provided with an arc-shaped guide at one end near the protective cover.

[0015] By adopting the above technical solution, the arc-shaped guide is used to facilitate the insertion of the connecting rod between the two limiting plates when the connecting rod is inserted into the through groove.

[0016] In summary, this utility model has at least one of the following beneficial technical effects:

[0017] This optical fiber preform suspension device works by opening the protective cover and inserting the anti-detachment head into the anti-detachment groove. The connecting rod is then inserted into the through slot. Rotating the rotating handle drives the transmission wheel to rotate. The transmission wheel, in conjunction with the transmission belt, drives two threaded rods to rotate synchronously, which in turn drives two moving plates to move synchronously. The moving plates then move the connecting arm and the support rod, causing the support rod to move along the inclined through hole. This causes the support rod to move the clamping plates, ensuring that one end of each of the four clamping plates simultaneously presses against the anti-detachment head. This allows the device to clamp and fix anti-detachment heads of different specifications, effectively preventing the preform from slipping during sintering. It also facilitates the suspension of preforms of different diameters, thus improving the device's applicability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first side view of the present invention;

[0019] Figure 2 This is a schematic diagram of the second side view of the present invention;

[0020] Figure 3 This is a partial side view of the structure of this utility model;

[0021] Figure 4 This utility model Figure 3 A magnified schematic diagram of the local structure at point A;

[0022] Figure 5 This is a partial cross-sectional view of the present invention.

[0023] Figure 6 This utility model Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0024] In the diagram: 1. Suspension head; 2. Precast bar body; 3. Connecting bar; 4. Anti-detachment head; 5. Protective cover; 6. Elastic buckle; 7. Threaded rod; 8. Transmission wheel; 9. Transmission belt; 10. Rotating handle; 11. Moving plate; 12. Connecting arm; 13. Support rod; 14. Clamping plate; 15. Anti-slip pad; 16. Positioning groove; 17. Positioning block; 18. Limiting plate; 19. Spring; 20. Arc-shaped guide. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figures 1-6An optical fiber preform suspension device includes a suspension head 1 and a preform body 2. A connecting rod 3 is fixedly connected to the top of the preform body 2. The top of the connecting rod 3 is provided with an anti-detachment head 4. The front end of the suspension head 1 has an anti-detachment groove that cooperates with the anti-detachment head 4 and a through groove that cooperates with the connecting rod 3. A protective cover 5 is rotatably connected to the front end of the suspension head 1. The bottom end of the protective cover 5 is provided with two elastic buckles 6. The bottom end of the suspension head 1 is provided with two slots that cooperate with the elastic buckles 6. The interior of the suspension head 1 has two cooperating control grooves. The inner sidewalls of the two control grooves have four oblique through holes facing the center of the inner lower sidewall of the anti-detachment groove. Threaded rods 7 are rotatably connected to the interior of each of the two control grooves. The top ends of the two threaded rods 7 are connected to transmission wheels 8 through the control grooves. A transmission belt 9 is provided between the two transmission wheels 8. A rotating handle 10 is provided on the transmission wheel 8. Moving plates 11 are threadedly connected to the two threaded rods 7. The bottom ends of the two moving plates 11 are... The rotating connection has two connecting arms 12, and the bottom ends of all four connecting arms 12 are rotatably connected to support rods 13 that pass through oblique through holes. One end of each of the four support rods 13 is fixedly connected to a clamping plate 14 that cooperates with the anti-detachment head 4. Open the protective cover 5 and insert the anti-detachment head 4 into the anti-detachment groove. At this time, the connecting rod 3 is inserted into the through groove. Rotate the rotating handle 10 to drive the transmission wheel 8 to rotate. The transmission wheel 8 cooperates with the transmission belt 9 to drive the two threaded rods 7 to rotate synchronously, thereby driving the two moving plates 11 to move synchronously. The moving plates 11 drive the connecting arms 12 and support rods 13 to move, so that the support rods 13 move along the oblique through holes, thereby driving the clamping plates 14 to move, so that one end of each of the four clamping plates 14 simultaneously presses against the anti-detachment head 4. This makes it easy for the equipment to clamp and fix anti-detachment heads 4 of different specifications, thereby effectively preventing the preform from slipping during the sintering process. This also makes it easy to suspend preforms of different diameters, thereby improving the applicability of the equipment.

[0028] Reference Figure 3 and Figure 4 Each of the four clamping plates 14 is provided with an anti-slip pad 15 at the end near the anti-detachment head 4. The anti-slip pad 15 is used to increase the friction between the clamping plate 14 and the anti-detachment head 4, thereby improving the stability of the equipment.

[0029] Reference Figures 3-5 The lower inner side wall of the anti-detachment groove is provided with a positioning groove 16, and the bottom end of the anti-detachment head 4 is provided with a positioning block 17 that cooperates with the positioning groove 16. The positioning groove 16 and the positioning block 17 cooperate to perform preliminary positioning of the anti-detachment head 4, so as to facilitate the equipment to clamp and fix the anti-detachment head 4, thereby improving the stability of the equipment.

[0030] Reference Figure 3 and Figure 5The two inner walls of the through groove are provided with receiving grooves, and the inside of the two receiving grooves is provided with limiting plates 18. Multiple evenly distributed springs 19 are provided between the two limiting plates 18 and the receiving grooves. When the connecting rod 3 is inside the through groove, the springs 19 push the limiting plates 18, so that the two limiting plates 18 cooperate to clamp and limit the connecting rod 3, reduce the probability of the connecting plate shaking, and thus improve the stability of the equipment.

[0031] Reference Figure 3 and Figure 5 Both limiting plates 18 have an arc-shaped guide 20 at one end near the protective cover 5. The arc-shaped guide 20 is used to facilitate the insertion of the connecting rod 3 between the two limiting plates 18 when the connecting rod 3 is inserted into the through groove.

[0032] In summary, the working principle and process of this optical fiber preform suspension device are as follows: First, open the protective cover 5 and insert the anti-detachment head 4 into the anti-detachment groove. At this time, the connecting rod 3 is inserted into the through groove. Rotating the rotating handle 10 drives the transmission wheel 8 to rotate. The transmission wheel 8 cooperates with the transmission belt 9 to drive the two threaded rods 7 to rotate synchronously, thereby driving the two moving plates 11 to move synchronously. The moving plates 11 drive the connecting arm 12 and the support rod 13 to move, causing the support rod 13 to move along the inclined through hole. This causes the support rod 13 to drive the clamping plate 14 to move, so that one end of each of the four clamping plates 14 simultaneously presses against the anti-detachment head 4. This facilitates the equipment to clamp and fix anti-detachment heads 4 of different specifications, effectively preventing the preform from slipping during the sintering process, and facilitating the handling of different specifications. Precast rods of the same diameter are suspended to improve the applicability of the equipment. Anti-slip pads 15 are used to increase the friction between clamping plate 14 and anti-detachment head 4, thereby improving the stability of the equipment. Positioning groove 16 cooperates with positioning block 17 to initially position anti-detachment head 4, so that the equipment can clamp and fix anti-detachment head 4, thereby improving the stability of the equipment. When connecting rod 3 is inside the through groove, spring 19 pushes limiting plate 18, so that the two limiting plates 18 cooperate to clamp and limit connecting rod 3, reducing the probability of connecting plate shaking, thereby improving the stability of the equipment. Arc-shaped guide 20 is used to facilitate the insertion of connecting rod 3 between the two limiting plates 18 when inserting connecting rod 3 into the through groove.

[0033] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A fiber optic preform suspension device, comprising a suspension head (1), characterized in that: The device includes a precast rod body (2), a connecting rod (3) fixedly connected to the top of the precast rod body (2), an anti-detachment head (4) provided at the top of the connecting rod (3), an anti-detachment groove that cooperates with the anti-detachment head (4) and a through groove that cooperates with the connecting rod (3) provided at the front end of the suspension head (1), a protective cover (5) rotatably connected to the front end of the suspension head (1), two elastic buckles (6) provided at the bottom end of the protective cover (5), two slots that cooperate with the elastic buckles (6) provided at the bottom end of the suspension head (1), two cooperating control grooves provided inside the suspension head (1), and four inner lower sidewalls facing the anti-detachment grooves provided on the inner sidewalls of the two control grooves. The oblique through hole at the center position, the two control slots are rotatably connected to threaded rods (7), the top of the two threaded rods (7) are connected to transmission wheels (8) through the control slots, the two transmission wheels (8) are provided with a transmission belt (9), the transmission wheels (8) are provided with a rotating handle (10), the two threaded rods (7) are threadedly connected to moving plates (11), the bottom of the two moving plates (11) are rotatably connected to two connecting arms (12), the bottom of the four connecting arms (12) are rotatably connected to support rods (13) through the oblique through hole, and one end of the four support rods (13) is fixedly connected to a clamping plate (14) that cooperates with the anti-detachment head (4).

2. The optical fiber preform suspension device according to claim 1, characterized in that: Each of the four clamping plates (14) has an anti-slip pad (15) at one end near the anti-detachment head (4).

3. The optical fiber preform suspension device according to claim 1, characterized in that: The lower inner side wall of the anti-detachment groove is provided with a positioning groove (16), and the bottom end of the anti-detachment head (4) is provided with a positioning block (17) that cooperates with the positioning groove (16).

4. The optical fiber preform suspension device according to claim 1, characterized in that: The two inner walls of the through groove are provided with receiving grooves, and the inside of the two receiving grooves is provided with limiting plates (18). The two limiting plates (18) are provided with multiple evenly distributed springs (19) between them and the receiving grooves.

5. The optical fiber preform suspension device according to claim 4, characterized in that: Both of the limiting plates (18) have an arc-shaped guide (20) at one end near the protective cover (5).

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