A fiber preform hoisting clamp

Abstract

The present application relates to the field of optical fiber hoisting clamp, in particular to an optical fiber preform hoisting clamp, which comprises a moving vehicle, a hydraulic rod and a rotating disc, the hydraulic rod is arranged on the moving vehicle, the rotating disc is rotatably arranged on the top of the hydraulic rod, and further comprises a clamping mechanism and a stabilizing mechanism; a plurality of placing grooves for accommodating optical fiber preforms are radially arranged on the outer wall of the rotating disc; the clamping mechanism has multiple groups, the clamping mechanism is arranged in the corresponding placing groove and is used for clamping and fixing the upper end of the optical fiber preform; the stabilizing mechanism has multiple groups, the stabilizing mechanism is arranged below the corresponding clamping mechanism; the stabilizing mechanism can clamp and fix the lower end of the optical fiber preform along with the clamping of the corresponding clamping mechanism. Through the cooperation of the clamping mechanism and the stabilizing mechanism, multiple positions of the optical fiber preform can be fixed, thereby improving the stability of the hoisting process; through the cooperation of the rotating disc, the hydraulic rod and the moving vehicle, multiple optical fiber preforms can be hoisted, thereby improving the hoisting efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical fiber hoisting clamp, in particular to an optical fiber preform hoisting clamp. BACKGROUND

[0002] Optical fiber preform (English name: Optical Fiber Preform or Fiber Preform) is a quartz glass rod with a specific refractive index profile and is used to manufacture optical fiber (optical fiber for short). The internal structure of the optical fiber is formed in the preform.

[0003] Because the production of the preform is the most important part of the optical fiber process, since the large-scale production of optical fiber began in the late 1970s, the research and improvement of the optical fiber preform manufacturing technology has never stopped.

[0004] When manufacturing optical fiber, people first make optical fiber preform. There are many methods for making optical rods, and the commonly used manufacturing process is the vapor phase oxidation method. In the vapor phase oxidation method, high-purity metal halide vapor and oxygen react to form some oxide particles, which are deposited on the surface of the glass or quartz body (or the inner wall of the tubular body), and then sintered to form a transparent glass rod (if it is a tube, it also needs to be shrunk to become a rod). At this time, the optical rod has the basic structure of the optical fiber.

[0005] After the optical fiber preform is made, it needs to be hoisted into the drawing machine for drawing. Since the optical fiber preform is heavy, during the hoisting process of the optical fiber preform, due to the instability of the hoisting machine, the optical fiber preform may shake in the air, not only making the whole hoisting process unstable, but also possibly causing the optical fiber preform to collide, resulting in damage to the optical fiber preform. And because each can only hoist a single optical fiber preform, the operation steps are more, greatly reducing the hoisting efficiency. SUMMARY

[0006] In view of the problems existing in the prior art, the present application provides an optical fiber preform hoisting clamp, which can fix multiple positions of the optical fiber preform through the cooperation of the clamping mechanism and the stabilizing mechanism, thereby improving the stability of the hoisting process. Through the cooperation of the rotating disc, the hydraulic rod and the moving vehicle, multiple optical fiber preforms can be hoisted, thereby improving the hoisting efficiency.

[0007] To solve the problems in the prior art, the technical scheme adopted by the present application is as follows:

[0008] The optical fiber preform hoisting clamp comprises a moving vehicle, a hydraulic rod and a rotating disc, the hydraulic rod is arranged on the moving vehicle in a vertical state, the rotating disc is arranged on the top of the hydraulic rod in a horizontal state and can rotate, further comprising a clamping mechanism and a stabilizing mechanism; a plurality of placing grooves for accommodating the optical fiber preform are arranged on the outer wall of the rotating disc in the circumferential direction; the clamping mechanism has multiple groups, the clamping mechanism is arranged in the corresponding placing groove and is used for clamping and fixing the upper end of the optical fiber preform; the stabilizing mechanism has multiple groups, the stabilizing mechanism is arranged at the lower edge of the rotating disc and is located below the corresponding clamping mechanism; the stabilizing mechanism can clamp and fix the lower end of the optical fiber preform along with the clamping of the corresponding clamping mechanism.

[0009] Preferably, each group of clamping mechanisms comprises a contact plate, a guide sliding rail and a sliding bar; the two side inner walls of each placing groove along the length direction are provided with guide grooves, the two ends of each contact plate are provided with guide blocks corresponding to the guide grooves, the guide blocks are slidably arranged in the corresponding guide grooves; a connecting rod extending vertically downward is arranged on each guide block, a strip-shaped avoiding groove for avoiding the connecting rod is arranged on the inner wall at the bottom of each guide groove, and a rack is arranged at the end of each connecting rod away from the guide rod; the guide sliding rail has two, the two guide sliding rails are arranged at the bottom of the rotating disc and are located on the two sides of the corresponding placing groove along the length direction, and the length direction of the guide sliding rail is perpendicular to the length direction of the placing groove; a screw rod is rotatably arranged in each guide sliding rail, one end of each screw rod near the corresponding placing groove protrudes out of the guide sliding rail and is provided with a transmission gear matched with the rack, and the transmission gear is engaged with the corresponding rack; the sliding bar has two, the sliding bar is slidably arranged in the corresponding guide sliding rail in a vertical state and is threadedly connected with the corresponding screw rod, and a horizontal bar is arranged at the bottom of each sliding bar near one side of the placing groove; an arc-shaped clamping plate is arranged at the end of each horizontal bar away from the sliding bar.

[0010] Preferably, an elastic mechanism for resetting the contact plate is arranged in each placing groove.

[0011] Preferably, each elastic mechanism comprises an elastic column and a reset spring; a guide hole is arranged at the center of the inner wall at the bottom of each placing groove, the elastic column is slidably arranged in the corresponding guide hole, and one end of each elastic column away from the guide hole is fixedly connected with the corresponding side of the contact plate; the reset spring is arranged in the corresponding guide hole.

[0012] Preferably, a plurality of fixing mechanisms for preventing the optical fiber preform from being bounced out of the placing groove by the contact plate are arranged on the rotating disc.

[0013] Preferably, each set of fixing mechanism comprises a mounting strip, a rotating shaft and a linear driver; the mounting strip is provided with two mounting strips which are arranged at the top edge of the rotating disc and located at both sides of the length direction of the corresponding placing slot; the end of each mounting strip away from the rotating disc is provided with a rotating hole; the rotating shaft is provided with two rotating shafts which are arranged in the corresponding rotating hole in a vertical state and can rotate; the mounting plate is arranged on each rotating shaft and the length direction of the mounting plate is the same as that of the rotating shaft; the linear driver is provided with two linear drivers which are arranged on the corresponding mounting plate and the execution part of the linear driver passes through the mounting plate and is provided with a push plate; the contact plate is further arranged on each rotating shaft and the length direction of the contact plate is the same as that of the rotating shaft, and the contact plate is arranged at a right angle with the mounting plate.

[0014] Preferably, the end of the top of each mounting strip away from the rotating disc is provided with a U-shaped plate, the top of each U-shaped plate is provided with a mounting hole, the rotating shaft is arranged in the corresponding mounting hole in a vertical upward direction and can rotate, the reset torsional spring is arranged on each rotating shaft and located between the U-shaped plate and the mounting strip; the ratchet wheel is further arranged on each rotating shaft and the pawl matched with the ratchet wheel is arranged on the mounting strip.

[0015] Preferably, each set of stabilizing mechanism comprises an arc-shaped placing plate and an air bag; the arc-shaped placing plate is provided with two arc-shaped placing plates which are arranged below the corresponding guide slide rail in a vertical state; the guide block is arranged at the top center of each arc-shaped placing plate; the guide slot is arranged at the bottom of each horizontal strip; the guide block is arranged in the corresponding guide slot in a sliding manner; the guide rod is arranged on the side of each guide block away from the inner wall of the corresponding arc-shaped placing plate; the guide rod extends in a horizontal state towards the direction away from the placing slot and passes through the guide slot; the compression spring is sleeved on each guide rod and located inside the guide slot; the air bag is provided with two air bags which are arranged on the inner wall of the corresponding arc-shaped placing plate.

[0016] Preferably, the top of the hydraulic rod is provided with a mounting frame, the driving motor is arranged in the mounting frame in a vertical state, and the execution part of the driving motor is arranged at the bottom center of the rotating disc through the mounting frame.

[0017] Preferably, the moving vehicle is provided with a push handle on one side, and the hydraulic rod is provided with a plurality of inclined support rods in a circumferential direction.

[0018] The beneficial effects of the present application compared with the prior art are:

[0019] 1. The present application can move the optical fiber preform to different positions and different heights by the cooperation of the moving vehicle and the hydraulic rod, and can clamp and fix a plurality of optical fiber preforms by the cooperation of the rotating disc, the contact plate, the guide slide rail and the sliding strip, thereby improving the hoisting efficiency.

[0020] 2. The application cooperates the arc-shaped placing plate and the air bag, injects gas into the air bag, the air bag expands under the elastic force of the compression spring, so that the air bag can adaptively fit the optical fiber preform, while reinforcing the optical fiber preform, the collision between the optical fiber preform and external objects can be avoided, and the integrity of the optical fiber preform is ensured.

[0021] 3. The application cooperates the installation strip, the rotating shaft and the linear driver, when the optical fiber preform moves into the corresponding placing groove, the linear driver drives the push plate to move, under the cooperation of the abutting plate and the two push plates, the optical fiber preform can be clamped and fixed, cooperates with the arc-shaped clamping plate, so that the optical fiber preform can be clamped and fixed at multiple positions, cooperates the reset torsional spring, the ratchet and the pawl, so that the position of the optical fiber preform can be limited, and the stability of the moving optical fiber preform is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of an optical fiber preform hoisting clamp Figure 1 ;

[0023] Figure 2 It is a perspective view of an optical fiber preform hoisting clamp Figure 2 ;

[0024] Figure 3 It is Figure 2 a partial enlarged view of A in FIG. 1;

[0025] Figure 4 It is a sectional view of an optical fiber preform hoisting clamp

[0026] Figure 5 It is Figure 4 a partial enlarged view of B in FIG. 1;

[0027] Figure 6 It is Figure 4 a partial enlarged view of C in FIG. 1;

[0028] Figure 7 It is a perspective exploded view of a rotating disc and an elastic mechanism in an optical fiber preform hoisting clamp

[0029] Figure 8 It is a perspective view of a clamping mechanism in an optical fiber preform hoisting clamp

[0030] Figure 9 It is a perspective exploded view of a fixing mechanism in an optical fiber preform hoisting clamp

[0031] Figure 10 It is a perspective view of a stabilizing mechanism and a sliding strip in an optical fiber preform hoisting clamp

[0032] Figure 11 It isFigure 10 Local enlarged view at D.

[0033] Reference signs in the drawings:

[0034] 1 - moving vehicle; 11 - pushing handle;

[0035] 2 - hydraulic rod; 21 - mounting frame; 22 - driving motor; 23 - supporting rod;

[0036] 3 - rotating disc; 31 - placing groove; 311 - guide groove; 312 - strip-shaped avoiding groove; 313 - guide hole; 3131 - limiting groove; 314 - limiting plate; 3141 - limiting hole; 32 - fan-shaped avoiding port;

[0037] 4 - clamping mechanism; 41 - abutting plate; 411 - guide block; 412 - connecting rod; 413 - rack; 414 - arc-shaped notch; 42 - guiding slide rail; 421 - screw rod; 422 - transmission gear; 43 - sliding bar; 431 - horizontal bar; 4311 - guiding groove; 432 - arc-shaped clamping plate;

[0038] 5 - stabilizing mechanism; 51 - arc-shaped placing plate; 511 - guide block; 512 - guide rod; 513 - compression spring; 52 - air bag;

[0039] 6 - elastic mechanism; 61 - elastic column; 611 - limiting block; 62 - return spring;

[0040] 7 - fixing mechanism; 71 - mounting bar; 711 - rotating hole; 712 - U-shaped plate; 7121 - mounting hole; 713 - pawl; 714 - spring sheet; 72 - rotating shaft; 721 - mounting plate; 722 - contact plate; 723 - return torsion spring; 724 - ratchet wheel; 73 - linear driver; 731 - pushing plate; 732 - fan-shaped cutout. DETAILED DESCRIPTION

[0041] In order to further understand the features, technical means and achieved specific purposes and functions of the present application, the present application is described in further detail below in combination with the drawings and specific embodiments.

[0042] Reference signs in the drawings: Figures 1 to 11As shown, a fiber preform lifting clamp, comprising a mobile trolley 1, a hydraulic rod 2 and a rotating disc 3, the hydraulic rod 2 is vertically arranged on the mobile trolley 1, the rotating disc 3 is horizontally arranged on the top of the hydraulic rod 2 and can rotate, further comprising a clamping mechanism 4 and a stabilizing mechanism 5; the outer wall of the rotating disc 3 is radially provided with a plurality of placing grooves 31 for accommodating the fiber preform along the circumferential direction; the clamping mechanism 4 has multiple groups, the clamping mechanism 4 is arranged in the corresponding placing groove 31 and is used for clamping and fixing the upper end of the fiber preform; the stabilizing mechanism 5 has multiple groups, the stabilizing mechanism 5 is arranged at the lower edge of the rotating disc 3 and is located below the corresponding clamping mechanism 4; the stabilizing mechanism 5 can clamp and fix the lower end of the fiber preform along with the clamping of the corresponding clamping mechanism 4.

[0043] The staff adjusts the hydraulic rod 2 to move the position of the rotating disc 3 to a suitable height, moves the fiber preform into the placing groove 31 of the rotating disc 3, then fixes the upper end of the fiber preform through the clamping mechanism 4 arranged in the placing groove 31, at this time, along with the fixing of the clamping mechanism 4, the stabilizing mechanism 5 arranged below the clamping mechanism 4 can be fixed again along with the clamping of the clamping mechanism 4 to further improve the stability of the fiber preform and avoid shaking during the carrying process, then the rotating disc 3 rotates to make the fixed fiber preform rotate along the axis direction of the rotating disc 3, which can clamp and fix the new fiber preform, so that multiple fiber preforms can be clamped on the whole rotating disc 3 at the same time, thereby improving the lifting efficiency, when the clamping is completed, the staff adjusts the mobile trolley 1 to move the position of the whole device, when moving to the required area, the staff adjusts the hydraulic rod 2 and the rotating disc 3 in turn to move the clamped fiber preform to the required height, then adjusts the clamping mechanism 4, the clamping mechanism 4 loosens the fiber preform in the corresponding placing groove 31, along with the loosening of the clamping mechanism 4, the stabilizing mechanism 5 located below it loosens the fiber preform at the same time, so that the staff can easily take out the fiber preform in the corresponding placing groove 31 from the placing groove 31, thereby completing the whole lifting work.

[0044] Referring to Figure 2 , Figure 3 , Figure 7 and Figure 8As shown, each set of clamping mechanism 4 comprises a contact plate 41, a guide slide rail 42 and a sliding bar 43; each placing groove 31 is provided with a guide groove 311 on the inner wall of both sides in the length direction, both ends of each contact plate 41 are provided with a guide block 411 corresponding to the guide groove 311, the guide block 411 is slidably arranged in the corresponding guide groove 311; each guide block 411 is provided with a connecting rod 412 extending vertically downward, the bottom inner wall of each guide groove 311 is provided with a strip-shaped avoiding groove 312 for avoiding the connecting rod 412, one end of each connecting rod 412 away from the guide rod is provided with a rack 413; the guide slide rail 42 has two, the two guide slide rails 42 are arranged at the bottom of the rotating disc 3 and are located on both sides of the corresponding placing groove 31 in the length direction, the length direction of the guide slide rail 42 is perpendicular to the length direction of the placing groove 31; each guide slide rail 42 is rotatably provided with a lead screw 421, one end of each lead screw 421 close to the corresponding placing groove 31 protrudes out of the guide slide rail 42 and is provided with a transmission gear 422 matched with the rack 413, the transmission gear 422 is engaged with the corresponding rack 413; the sliding bar 43 has two, the sliding bar 43 is slidably arranged in the corresponding guide slide rail 42 in a vertical state and is threadedly connected with the corresponding lead screw 421, one side of the bottom of each sliding bar 43 close to the placing groove 31 is provided with a horizontal strip 431, one end of each horizontal strip 431 away from the sliding bar 43 is provided with an arc-shaped clamping plate 432.

[0045] When the hoisting is needed, the staff moves the optical fiber preform into the corresponding placing groove 31 in a vertical state, at this time, the optical fiber preform is in contact with the corresponding abutting plate 41, thereby pushing the abutting plate 41 to move towards the center of the rotating disc 3, the guide blocks 411 at both ends of the abutting plate 41 move along the corresponding guide groove 311, thereby ensuring the stability of the movement of the abutting plate 41, with the movement of the abutting plate 41, the connecting rod 412 at the lower end of the guide block 411 moves along the length direction of the strip-shaped avoiding groove 312, at this time, the rack 413 is engaged with the transmission gear 422 of the corresponding lead screw 421, thereby driving the two transmission gears 422 to rotate, with the rotation of the two transmission gears 422, the lead screw 421 fixedly connected with the transmission gear 422 rotates, the sliding bar 43 is threadedly connected with the corresponding lead screw 421, thereby enabling the two sliding bars 43 to move along the length direction of the corresponding guide sliding rail 42 and approach each other, the horizontal bar 431 is arranged at the bottom of each sliding bar 43, the length direction of the horizontal bar 431 is the same as the length direction of the guide sliding rail 42, one end of the horizontal bar 431 away from the sliding bar 43 is directed towards the corresponding placing groove 31, with the approach of the two sliding bars 43, the arc-shaped clamping plates 432 arranged on the corresponding horizontal bars 431 can approach each other, the inner wall of each arc-shaped clamping plate 432 is provided with a flexible material, thereby avoiding abrasion to the optical fiber preform and ensuring the integrity of the optical fiber preform, the two arc-shaped clamping plates 432 approach each other, thereby being capable of fixing the upper end of the optical fiber preform and ensuring the stability of the optical fiber preform.

[0046] Referring to Figure 4 , Figure 6 and Figure 7 , each placing groove 31 is provided with an elastic mechanism 6 for resetting the abutting plate 41; each elastic mechanism 6 comprises an elastic column 61 and a reset spring 62; the center of the inner wall at the bottom of each placing groove 31 is provided with a guide hole 313, the elastic column 61 is slidably arranged in the corresponding guide hole 313, one end of each elastic column 61 away from the guide hole 313 is fixedly connected with the corresponding side of the abutting plate 41; the reset spring 62 is arranged in the corresponding guide hole 313.

[0047] The inner wall of each guide hole 313 is mirror-symmetrically provided with two limiting grooves 3131, each elastic column 61 is provided with two limiting blocks 611 corresponding to the limiting grooves 3131 on the outer wall of the end close to the guide hole 313, the limiting blocks 611 are slidably arranged in the corresponding limiting grooves 3131, so as to ensure the stability of the movement of the elastic column 61, and the bottom inner wall of each placing groove 31 is further provided with a limiting plate 314, the limiting plate 314 is provided with a limiting hole 3141 through which only the elastic column 61 passes, by arranging the limiting plate 314, the position of the elastic column 61 is limited, so as to avoid being pushed out of the corresponding guide hole 313 due to the elastic force of the reset spring 62, when the optical fiber preform is clamped, the optical fiber preform pushes the abutting plate 41, and the two elastic columns 61 move along the axis direction of the corresponding guide hole 313 towards the direction close to the bottom inner wall of the guide hole 313, at this time, the reset spring 62 is extruded to generate an elastic force, when the optical fiber preform is taken out of the placing groove 31, the abutting plate 41 moves away from the bottom inner wall of the corresponding placing groove 31 under the elastic force of the reset spring 62, when the limiting block 611 contacts the limiting plate 314, the position of the elastic column 61 is limited, so as to reset the abutting plate 41, and facilitate the next hoisting.

[0048] Referring to Figure 2 、 Figure 4 、 Figure 5 and Figure 8 , the rotating disc 3 is provided with a plurality of fixing mechanisms 7 for preventing the optical fiber preform from being pushed out of the placing groove 31 by the abutting plate 41; each fixing mechanism 7 comprises a mounting strip 71, a rotating shaft 72 and a linear driver 73; the mounting strip 71 has two, and the two mounting strips 71 are arranged at the top edge of the rotating disc 3 and located on both sides of the corresponding placing groove 31 along the length direction; each mounting strip 71 is provided with a rotating hole 711 at the end away from the rotating disc 3, the rotating shaft 72 has two, and the rotating shaft 72 is arranged in the corresponding rotating hole 711 in a vertical state and can rotate, each rotating shaft 72 is provided with a mounting plate 721, and the length direction of the mounting plate 721 is the same as that of the rotating shaft 72; the linear driver 73 has two, and the two linear drivers 73 are arranged on the corresponding mounting plate 721, and the execution part of the linear driver 73 penetrates through the mounting plate 721 and is provided with a pushing plate 731; each rotating shaft 72 is further provided with a contact plate 722, and the length direction of the contact plate 722 is the same as that of the rotating shaft 72, and the contact plate 722 is arranged at a right angle with the mounting plate 721.

[0049] The mounting plate 721 and the contact plate 722 are located below the corresponding mounting strip 71, each placing groove 31 is provided with a fan-shaped avoiding opening 32 away from both sides of the center of the rotating disc 3 for avoiding the contact plate 722 and the mounting plate 721, when the optical fiber preform is not clamped, the two contact plates 722 located at the same placing groove 31 are in contact with each other and in the same vertical plane away from one side of the rotating shaft 72, when the optical fiber preform is clamped, the optical fiber preform is in a vertical state and moves towards the direction close to the placing, the optical fiber preform contacts the two contact plates 722, so that the two contact plates 722 can rotate along the axis of the rotating shaft 72, and with the rotation of the rotating shaft 72, the two mounting plates 721 can move close to each other, after the optical fiber preform enters the placing groove 31, the linear drive 73 is adjusted, the two linear drives 73 drive the corresponding push plate 731 to move towards the direction close to the center of the rotating disc 3, the push plate 731 is located between the contact plate 722 and the mounting plate 721, each push plate 731 is provided with a fan-shaped notch 732, with the movement of the push plate 731, the fan-shaped notches 732 on the two push plates 731 can fit the optical fiber preform, so that the optical fiber preform can move towards the direction close to the corresponding abutting plate 41, each abutting plate 41 is provided with an arc-shaped notch 414, the fan-shaped notch 732 and the arc-shaped notch 414 are provided with flexible materials, so as to protect the surface of the optical fiber preform and avoid abrasion, the push plate 731 and the abutting plate 41 cooperate to fix the optical fiber preform again, so as to further improve the stability of the optical fiber preform.

[0050] Referring to Figure 5 and Figure 9 As shown in the figure, each mounting strip 71 is provided with a U-shaped plate 712 at the top away from one end of the rotating disc 3, each U-shaped plate 712 is provided with a mounting hole 7121 at the top, the rotating shaft 72 is vertically upwardly extended and rotatably arranged in the corresponding mounting hole 7121, each rotating shaft 72 is provided with a reset torsion spring 723, and the reset torsion spring 723 is located between the U-shaped plate 712 and the mounting strip 71; each rotating shaft 72 is further provided with a ratchet wheel 724, and the mounting strip 71 is provided with a pawl 713 matched with the ratchet wheel 724.

[0051] When the optical fiber preform is not hoisted, the elastic force of the reset torsion spring 723 can limit the position of the two rotating shafts 72, at this time, the two contact plates 722 located at the same placement slot 31 are in contact with each other and in the same vertical plane. When the optical fiber preform is hoisted, the optical fiber preform moves in a vertical state towards the direction close to the placement slot 31, with the movement of the optical fiber preform, when the optical fiber preform touches the two contact plates 722, the rotating shaft 72 rotates along its axis, with the rotation of the rotating shaft 72, the ratchet wheel 724 rotates synchronously, when the optical fiber preform enters the corresponding placement slot 31, the two mounting plates 721 are in close contact with each other, the spring sheet 714 is also provided on each mounting strip 71, under the action of the spring sheet 714, the pawl 713 can always adhere to the ratchet wheel 724, under the action of the pawl 713, the rotating shaft 72 can be prevented from rotating under the elastic force of the reset torsion spring 723, thereby improving the stability when the optical fiber preform is hoisted, then the optical fiber preform is pushed by the linear actuator 73 to be fixed. When the optical fiber preform needs to be unloaded, the worker pulls the spring sheet 714, then separates the pawl 713 from the ratchet wheel 724, under the elastic force of the reset torsion spring 723, so that the rotating shaft 72 can be reset, thereby taking out the optical fiber preform from the corresponding placement slot 31, after the taking out is completed, the spring sheet 714 is put back to the original position, thereby facilitating the next hoisting.

[0052] Referring to Figure 4 , Figure 10 and Figure 11 , each set of stabilizing mechanism 5 includes an arc-shaped placement plate 51 and an air bag 52; the arc-shaped placement plate 51 has two, the arc-shaped placement plate 51 is arranged in a vertical state below the corresponding guide slide rail 42, a guide block 511 is arranged at the top center of each arc-shaped placement plate 51, a guide groove 4311 is arranged at the bottom of each horizontal strip 431, and the guide block 511 is slidably arranged in the corresponding guide groove 4311; a guide rod 512 is arranged on the side of each guide block 511 away from the inner wall of the corresponding arc-shaped placement plate 51, the guide rod 512 extends in a horizontal state towards the direction away from the placement slot 31 and passes through the guide groove 4311, and a compression spring 513 is sleeved on each guide rod 512 and located inside the guide groove 4311; the air bag 52 has two, and the air bag 52 is arranged on the inner wall of the corresponding arc-shaped placement plate 51.

[0053] With the contact of the optical fiber preform and the abutment plate 41, the abutment plate 41 moves along the length direction of the placing groove 31 towards the direction close to the inner wall of the bottom of the placing groove 31, thereby driving the two arc-shaped clamping plates 432 to move close to each other, at this time, under the elastic force of the compression spring 513, the two arc-shaped placing plates 51 are located at one end of the corresponding guiding groove 4311 close to the corresponding placing groove 31, then, the gas is filled into the two gas bags 52 respectively, with the filling of the gas, the two gas bags 52 expand, thereby contacting the outer wall of the optical fiber preform, at this time, the guide block 511 moves along the guiding groove 4311, thereby making the compression spring 513 generate an elastic force, under the cooperation of the compression spring 513 and the guide rod 512, the gas bags 52 located on both sides of the optical fiber preform can adaptively fit the outer wall of the optical fiber preform, thereby stably supporting the lower end of the optical fiber preform and protecting the optical fiber preform, avoiding the collision between the optical fiber preform and external objects, thereby preventing the damage of the optical fiber preform.

[0054] Referring to Figure 2 As shown in the figure, the hydraulic rod 2 is provided with a mounting frame 21 at the top, and a driving motor 22 is arranged in the mounting frame 21, and the driving motor 22 is arranged in a vertical state, and the driving motor 22 is arranged at the bottom center of the rotating disc 3.

[0055] The staff adjusts the driving motor 22, and the rotating disc 3 is driven to rotate with the rotation of the driving motor 22, so that the optical fiber preform can be clamped and fixed multiple times, thereby improving the carrying efficiency, and through the cooperation with the hydraulic rod 2, the optical fiber preform can be moved to different heights, thereby meeting different needs.

[0056] Referring to Figure 1 and Figure 2 , as shown in the figure, the moving vehicle 1 is provided with a pushing handle 11 on one side, and the hydraulic rod 2 is provided with a plurality of inclined support rods 23 in the circumferential direction.

[0057] The pushing handle 11 is arranged, so that the staff can adjust the position of the moving vehicle 1, and the plurality of support rods 23 are arranged, so as to improve the stability of the connection between the hydraulic rod 2 and the moving vehicle 1, and improve the safety during hoisting.

[0058] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An optical fiber preform hoisting fixture, comprising a moving vehicle (1), a hydraulic rod (2) and a rotating disk (3), wherein the hydraulic rod (2) is arranged on the moving vehicle (1) in a vertical state, and the rotating disk (3) is arranged on the top of the hydraulic rod (2) in a horizontal state and can be rotated, and is characterized in that: It also includes a clamping mechanism (4) and a stabilizing mechanism (5); the outer wall of the rotating disk (3) is radially provided with a plurality of placement grooves (31) for accommodating optical fiber preforms along the circumferential direction; there are multiple groups of clamping mechanisms (4), the clamping mechanisms (4) are arranged in corresponding placement grooves (31) and are used to clamp and fix the upper end of the optical fiber preform; there are multiple groups of stabilizing mechanisms (5), the stabilizing mechanisms (5) are arranged at the lower edge of the rotating disk (3) and are located below the corresponding clamping mechanisms (4); the stabilizing mechanisms (5) can clamp and fix the lower end of the optical fiber preform as the corresponding clamping mechanisms (4) clamp. Each set of clamping mechanisms (4) includes a contact plate (41), a guide rail (42) and a sliding bar (43); each placement slot (31) is provided with a guide slot (311) on both sides of the inner wall along the length direction, and each contact plate (41) is provided with a guide block (411) corresponding to the guide slot (311) at both ends, and the guide block (411) is slidably arranged in the corresponding guide slot (311); each guide block (411) is provided with a connecting rod (412) extending vertically downward, and the inner wall at the bottom of each guide slot (311) is provided with a strip-shaped avoidance groove (312) for avoiding the connecting rod (412), and a rack (413) is provided at one end of each connecting rod (412) away from the guide rod; there are two guide rails (42), and the two guide rails (42) are provided at the bottom of the rotating disk (3) and located at the corresponding placement slot (3 1) Along both sides of the length direction, the length direction of the guide rail (42) is perpendicular to the length direction of the placement groove (31); a screw rod (421) is rotatably provided in each guide rail (42), and each screw rod (421) extends out of the guide rail (42) at one end close to the corresponding placement groove (31) and is provided with a transmission gear (422) that cooperates with the rack (413), and the transmission gear (422) is meshed with the corresponding rack (413); there are two sliding bars (43), and the sliding bars (43) are vertically slidably provided in the corresponding guide rail (42) and are threadedly connected to the corresponding screw rod (421), and a horizontal bar (431) is provided on the side of the bottom of each sliding bar (43) close to the placement groove (31), and an arc-shaped clamping plate (432) is provided at one end of each horizontal bar (431) away from the sliding bar (43); Each set of stabilizing mechanisms (5) includes an arc-shaped placement plate (51) and an airbag (52); there are two arc-shaped placement plates (51), which are arranged vertically below the corresponding guide rails (42); a guide block (511) is provided at the top center of each arc-shaped placement plate (51), and a guide groove (4311) is provided at the bottom of each horizontal bar (431), and the guide block (511) can be slidably arranged in the corresponding guide groove (4311); each guide A guide rod (512) is provided on one side of the block (511) away from the inner wall of the corresponding arc-shaped placement plate (51). The guide rod (512) extends in a horizontal state in a direction away from the placement groove (31) and passes through the guide groove (4311). A compression spring (513) is sleeved on each guide rod (512). The compression spring (513) is located inside the guide groove (4311). There are two airbags (52), and the airbags (52) are arranged on the inner wall of the corresponding arc-shaped placement plate (51).

2. The optical fiber preform hoisting fixture according to claim 1, characterized in that: An elastic mechanism (6) for resetting the contact plate (41) is provided in each placement groove (31).

3. The optical fiber preform hoisting fixture according to claim 2, characterized in that: Each elastic mechanism (6) includes an elastic column (61) and a return spring (62); a guide hole (313) is provided at the center of the inner wall at the bottom of each placement slot (31), and the elastic column (61) is slidably arranged in the corresponding guide hole (313); an end of each elastic column (61) away from the guide hole (313) is fixedly connected to a corresponding side of the contact plate (41); and the return spring (62) is arranged in the corresponding guide hole (313).

4. The optical fiber preform hoisting fixture according to claim 3, characterized in that: The rotating disk (3) is provided with a plurality of fixing mechanisms (7) for preventing the optical fiber preform from being ejected from the placement groove (31) by the resistance plate (41).

5. The optical fiber preform hoisting fixture according to claim 4, characterized in that: Each set of fixing mechanisms (7) includes a mounting bar (71), a rotating shaft (72) and a linear drive (73); there are two mounting bars (71), which are arranged at the top edge of the rotating disk (3) and located on both sides of the corresponding placement groove (31) along the length direction; each mounting bar (71) is provided with a rotating hole (711) at one end away from the rotating disk (3); there are two rotating shafts (72), which are arranged in a vertical state and can be rotated in the corresponding rotating holes (711), and each rotating shaft (72) is provided with a mounting plate (721), the length direction of the mounting plate (721) is the same as the length direction of the rotating shaft (72); there are two linear drivers (73), the two linear drivers (73) are arranged on the corresponding mounting plates (721), the actuators of the linear drivers (73) pass through the mounting plates (721) and are provided with a push plate (731); each rotating shaft (72) is also provided with a contact plate (722), the length direction of the contact plate (722) is the same as the length direction of the rotating shaft (72), and the contact plate (722) is arranged at a right angle to the mounting plate (721).

6. The optical fiber preform hoisting fixture according to claim 5, characterized in that: At one end of the top of each mounting bar (71) away from the rotating disc (3), there is a U-shaped plate (712). At the top of each U-shaped plate (712), there is a mounting hole (7121). The rotating shaft (72) extends vertically upward and is rotatably arranged in the corresponding mounting hole (7121). A return torsion spring (723) is arranged on each rotating shaft (72), and the return torsion spring (723) is located between the U-shaped plate (712) and the mounting bar (71). A ratchet wheel (724) is also arranged on each rotating shaft (72), and a pawl (713) cooperating with the ratchet wheel (724) is arranged on the mounting bar (71).

7. The optical fiber preform hoisting fixture according to claim 1, characterized in that: At the top of the hydraulic rod (2), there is a mounting frame (21). A driving motor (22) is arranged in the mounting frame (21). The driving motor (22) is arranged in a vertical state, and the execution part of the driving motor (22) passes through the mounting frame (21) and is arranged at the center of the bottom of the rotating disc (3).

8. The optical fiber preform hoisting fixture according to claim 1, characterized in that: On one side of the moving vehicle (1), there is a push handle (11). A plurality of inclined support rods (23) are arranged on the hydraulic rod (2) along the circumferential direction.

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