Automatic heating and cooling device of optical fiber fusion splicer

Abstract

The invention relates to the technical field of optical fiber fusion splicing, in particular to an automatic heating and cooling device of an optical fiber fusion splicer, which comprises a central rotating shaft device and a shell, the device further comprises a lifting device, a rotating device, a heating device, a cover plate and a cooling device. A cover plate capable of being opened and closed is mounted at the upper end of the shell; a heating device, a central rotating shaft device and a lifting device are sequentially installed in the machine shell from top to bottom. The rotating device is mounted below the right of the central rotating shaft device; according to the invention, automatic design of heating and cooling of the optical fiber heat-shrinkable tube is realized, after the optical fiber penetrating through the heat-shrinkable tube is placed, the fusion splicer completes heating within a set time, and the heated fusion-spliced optical fiber is automatically sent to the cooling device for cooling, so that manual operation for fiber taking and cooling is not needed, time is saved for technicians, fiber stripping and fusion splicing can be realized, and the whole optical fiber fusion splicing time is shortened; optical fibers are prevented from being broken during fiber taking, and the welding quality is improved; the welding time of the 12-core optical fiber is shortened by 30-40%, the heating yield of the heater is close to 100%, and the working efficiency is greatly improved when the optical fiber is welded.

Description

Technical Field

[0001] The present invention relates to the technical field of optical fiber fusion splicing, and particularly to an automatic heating and cooling device for an optical fiber fusion splicer. Background Art

[0002] In optical fiber communication, the transmitted signal is very fragile. Once the interface of the optical fiber is unstable or damaged, it may lead to signal interruption or a decrease in transmission quality. Through optical fiber fusion splicing technology, the connection of optical fibers can be made more stable and reliable, thereby improving the reliability of optical fiber communication. Through fusion splicing, the end faces of two optical fibers can be fused together to form a seamless connection, thus ensuring the stable transmission of signals.

[0003] Generally, the heating and cooling of an optical fiber fusion splicer require manual operation. First, the heat shrinkable sleeve and the optical fiber are placed in the heating furnace, and then the cover plate is manually closed. After heating is completed, the cover plate is manually opened again, and the heated heat shrinkable sleeve is taken out and placed in the cooling tray for cooling. During the operation process, the optical fiber is easily broken, reducing the yield. These processes all require manual intervention and operation.

[0004] Therefore, in view of the problem that the optical fiber is easily broken and the yield is reduced during the manual heating and cooling operation, an automatic heating and cooling device for an optical fiber fusion splicer can be designed. Summary of the Invention

[0005] In order to overcome the problems that the optical fiber is easily broken and the yield is reduced during the manual heating and cooling operation.

[0006] The technical solution of the present invention is: an automatic heating and cooling device for an optical fiber fusion splicer, which includes a central rotating shaft device and a machine shell; it also includes a lifting device, a rotating device, a heating device, a cover plate and a cooling device; a switchable cover plate is installed at the upper end of the machine shell; a heating device, a central rotating shaft device and a lifting device are installed in the machine shell from top to bottom in sequence; the rotating device is installed at the lower right of the central rotating shaft device;

[0007] The central rotating shaft device includes a screw hole, a fixed cylinder, a first bearing, a rotating shaft, a rotating disk, a first gear, a nut, a screw, a fixed groove and a support hole; two fixed cylinders are fixed on the fusion splicer skeleton through 4 screw holes; the fixed cylinder is internally embedded with a first bearing and a rotating shaft; the first bearing is fastened through a fixed groove and is in line with the support hole; one end of the rotating shaft on the inner side is fixedly connected with a screw; the outer side of the screw is threadedly connected with a nut for fastening the fixed cylinder; the middle outer side of the rotating shaft is embedded with a rotating disk and a first gear;

[0008] The lifting device includes a Y-shaped bracket, a first motor, an auxiliary limiting device, an e-shaped turntable and a return spring; the first motor is fixed on the rotating disk, the first motor is coaxially fixed with the e-shaped turntable, and two return springs 25 are respectively connected to the Y-shaped bracket and the e-shaped turntable;

[0009] The rotating device includes a second motor, a second gear, a left fixed point, a rotating main shaft, a rotating secondary shaft, and a main-secondary shaft connecting rod; the center line of the left fixed point and the motor shaft of the second motor are on the same horizontal line; the left fixed point is embedded with a second bearing and the rotating secondary shaft; the first motor is fixed on the splicer bracket; the motor shaft of the first motor meshes with the second gear;

[0010] The heating device includes a heating V-groove, a left groove, and a right groove;

[0011] The cover plate includes a third motor, a flying disc, a connecting rod, an L-shaped plate, a rubber pad, and a central hole; the third motor is coaxial with the flying disc; the L-shaped plate is connected to the splicer through the central hole; the connecting rod connects the flying disc and the L-shaped plate;

[0012] The cooling device includes a detachable metal cooling tray, a guiding groove, and a hook; the lower end of the detachable metal cooling tray is provided with guiding grooves symmetrically distributed front and back; the left end of the detachable metal cooling tray is fixedly connected with hooks symmetrically distributed front and back; a slot matching the hook is provided at the right end of the machine shell.

[0013] Preferably, when the heating button is pressed, the system sends an instruction to push the cover plate 5 to open. The third motor rotates to drive the flying disc 52 to rotate. The flying disc 52 drives the L-shaped plate 54 to move around the central hole 56 through the connecting rod, realizing the opening of the cover plate 5. The heating furnace starts to preheat. When the inductor receives the signal confirming that the optical fiber is placed properly, the cover plate 5 automatically flips into place and closes, and the heating furnace starts to heat officially. After heating is completed, the cover plate 5 flips, and the heating furnace enters the preheating state or is turned off. The Y-shaped bracket 21 first swings a very small amplitude through the rotating device 3 to separate the heated heat shrinkable sleeve from the heating furnace. Then the Y-shaped bracket 21 rises. The two Y-shaped brackets 21 are symmetrically distributed. The Y-shaped brackets 21 lift the heated heat shrinkable sleeve out of the heating furnace. The Y-shaped bracket 21 rotates right, rotating about 20 - 30 degrees, and must not cross the middle area of the cooling tray. The e-disk body of the lifting device 2 rotates back to the initial position. After the Y-shaped bracket 21 returns to the initial position, the second motor of the rotating device 3 rotates back to the initial position. The Y-shaped bracket 21 swings left along the bracket groove of the machine shell 7. The Y-shaped bracket 21 coincides with the heating V-groove 41 of the heating furnace, waiting for the next heating. The cover plate 5 automatically closes or opens, waiting for the next fusion heating operation. In the heating state, the Y-shaped bracket 21 stays in the left groove and the right groove to make up for the heat loss caused by the lack of the heating V-groove 41 (since there are fewer notches in the right groove, it can also be ignored). The Y-shaped bracket 21 rises and swings right, and the Y-shaped bracket 21 passes through the right groove and reaches the cooling device 6.

[0014] Preferably, both sides of the rotating shaft are cylindrical, and the middle is a square columnar structure.

[0015] Preferably, the two rotating shafts are connected by a pin.

[0016] Preferably, a groove is formed at the upper end of the rotating disk.

[0017] Preferably, the Y-shaped bracket includes a V-shaped bracket, a heat-insulating connecting pipe, a support rod, a roller and a first hook; the V-shaped bracket and the support rod are provided with studs and are connected by the heat-insulating connecting pipe; the lower end of the support rod is provided with first hooks symmetrically distributed left and right; a roller is installed between the two first hooks.

[0018] Preferably, the e-shaped turntable includes a limit groove, an e-shaped disk hole, an e-shaped disk body and a second hook; the shaft of the first motor is matched and fastened with the e-shaped disk hole; the roller is fitted with the limit groove; the return spring is respectively connected to the first hook and the second hook; the roller moves in the limit groove and cooperates with the fixed groove and the support hole.

[0019] Preferably, the positions where the rotating main shaft and the rotating sub-shaft are engaged with the second gear are square, and the others are cylindrical, and both sides are positioned by limit pins; the main and sub-shaft connecting rod is fastened through the main and sub-shaft holes to realize the linkage of the rotating main shaft and the rotating sub-shaft.

[0020] Preferably, soft hair is used for dust prevention at the slotted position of the rear shell of the machine case.

[0021] The beneficial effects of the present invention: Realize the automatic design of heating and cooling of the optical fiber heat shrinkable tube. After placing the optical fiber through which the heat shrinkable tube is passed, the fusion splicer completes heating within the set time, and automatically sends the heated fused optical fiber to the cooling device for cooling, without manual operation to take the fiber for cooling. Technicians can save time to strip and splice the fiber, shortening the entire optical fiber splicing time; prevent the optical fiber from being broken during fiber taking, improving the splicing quality; the splicing time of 12-core optical fiber is shortened by 30-40%, and the heating yield of the heater is close to 100%. When splicing optical fibers, the working efficiency is greatly improved, the cost is low and the cost performance is high, which is conducive to winning time for the restoration of communication cables in natural disasters such as earthquakes, optical fiber splicing skill competitions and the repair of optical cables in military exercises, and ensuring the lifeline of communication. Description of the Drawings

[0022] Figure 1 Shown is a front structural schematic diagram of the automatic heating and cooling device of the optical fiber fusion splicer of the present invention;

[0023] Figure 2 Shown is a structural schematic diagram of the central rotating shaft device in the automatic heating and cooling device of the optical fiber fusion splicer of the present invention;

[0024] Figure 3 Shown is a structural schematic diagram of the rotating shaft in the automatic heating and cooling device of the optical fiber fusion splicer of the present invention, wherein (a) is a front structural schematic diagram of the rotating shaft, and (b) is a side structural schematic diagram of the rotating shaft;

[0025] Figure 4The figure shows a schematic installation structure diagram of an auxiliary limiting device in the automatic heating and cooling device of the optical fiber fusion splicer of the present invention;

[0026] Figure 5 The figure shows a schematic exploded structure diagram of a lifting device in the automatic heating and cooling device of the optical fiber fusion splicer of the present invention;

[0027] Figure 6 The figure shows a schematic structure diagram of a rotating device in the automatic heating and cooling device of the optical fiber fusion splicer of the present invention;

[0028] Figure 7 The figure shows a schematic installation structure diagram of a rotating main shaft and a rotating sub - shaft in the automatic heating and cooling device of the optical fiber fusion splicer of the present invention;

[0029] Figure 8 The figure shows a schematic structure diagram of a heating device in the automatic heating and cooling device of the optical fiber fusion splicer of the present invention, where (a) is a top view, (b) is a front view, and (c) is a rear view;

[0030] Figure 9 The figure shows a schematic structure diagram of a cover plate of the automatic heating and cooling device of the optical fiber fusion splicer of the present invention, where (a) is a front view and (b) is a top view;

[0031] Figure 10 The figure shows a schematic structure diagram of a cooling device in the automatic heating and cooling device of the optical fiber fusion splicer of the present invention, where (a) is a front view and (b) is a side view.

[0032] Explanation of reference numerals: 1. Central rotating shaft device; 10. Screw hole; 11. Fixed cylinder; 12. First bearing; 13. Rotating shaft; 14. Rotating disk; 15. First gear; 16. Nut; 17. Screw; 18. Fixed groove; 19. Bracket hole;

[0033] 2. Lifting device; 21. Y - shaped bracket; 211. V - shaped bracket; 212. Heat - insulating connecting pipe; 213. Support rod; 214. Roller; 215. First hook; 22. First motor; 23. Auxiliary limiting device; 24. e - shaped turntable; 241. Limiting groove; 242. e - disk hole; 243. e - disk body; 244. Second hook; 25. Return spring;

[0034] 3. Rotating device; 31. Second motor; 32. Second gear; 33. Left fixed point; 34. Rotating main shaft; 35. Rotating sub - shaft; 36. Main - sub - shaft connecting rod; 331. Second bearing;

[0035] 4. Heating device; 41. Heating V - groove; 42. Left groove; 43. Right groove;

[0036] 5. Cover plate; 51. Third motor; 52. Flying disc; 53. Connecting rod; 54. L-shaped plate; 55. Rubber pad; 56. Central hole;

[0037] 6. Cooling device; 61. Removable metal cooling tray; 62. Guide groove; 63. Hook;

[0038] 7. Machine housing. Detailed implementation manner

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0040] Please refer to Figures 1-10 , the present invention provides an embodiment: an automatic heating and cooling device for an optical fiber fusion splicer, including a central rotating shaft device 1 and a machine housing 7; further including a lifting device 2, a rotating device 3, a heating device 4, a cover plate 5 and a cooling device 6; a cover plate 5 that can be opened and closed is installed at the upper end of the machine housing 7; a heating device 4, a central rotating shaft device 1 and a lifting device 2 are installed in the machine housing 7 from top to bottom in sequence; the rotating device 3 is installed at the lower right of the central rotating shaft device 1;

[0041] The central rotating shaft device 1 includes a screw hole 10, a fixed cylinder 11, a first bearing 12, a rotating shaft 13, a rotating disk 14, a first gear 15, a nut 16, a screw 17, a fixed groove 18 and a support hole 19; two fixed cylinders 11 are fixed on the fusion splicer skeleton through 4 screw holes 10; the fixed cylinder 11 is internally embedded with a first bearing 12 and a rotating shaft 13; the first bearing 12 is fastened through a fixed groove 18 and is fitted with the support hole 19; a screw 17 is fixedly connected to the inner side end of the rotating shaft 13; a nut 16 for fastening the fixed cylinder 11 is threadedly connected to the outer side of the screw 17; a rotating disk 14 and a first gear 15 are embedded on the outer side of the middle part of the rotating shaft 13;

[0042] The lifting device 2 includes a Y-shaped bracket 21, a first motor 22, an auxiliary limiting device 23, an e-shaped turntable 24 and a return spring 25; the first motor 22 is fixed on the rotating disk 14, the first motor 22 is coaxially fixed with the e-shaped turntable 24, and two return springs 25 are respectively connected to the Y-shaped bracket 21 and the e-shaped turntable 24;

[0043] The rotating device 3 includes a second motor 31, a second gear 32, a left fixed point 33, a rotating main shaft 34, a rotating auxiliary shaft 35 and a main and auxiliary shaft connecting rod 36; the center line of the left fixed point 33 and the motor shaft of the second motor 31 are on the same horizontal line; the left fixed point 33 is internally embedded with a second bearing 331 and a rotating auxiliary shaft 35; the first motor 22 is fixed on the fusion splicer bracket; the motor shaft of the first motor 22 is engaged with the second gear 32;

[0044] The heating device 4 includes a heating V-groove 41, a left groove 42 and a right groove 43;

[0045] The cover plate 5 includes a third motor 51, a frisbee 52, a connecting rod 53, an L-shaped plate 54, a rubber pad 55 and a central hole 56; the third motor 51 is coaxial with the frisbee 52; the L-shaped plate 54 is connected to the fusion splicer through the central hole 56; the connecting rod 53 connects the frisbee 52 and the L-shaped plate 54 to realize the closing and opening of the cover plate 5, and the keys are arranged in the key area of the fusion splicer;

[0046] The cooling device 6 includes a detachable metal cooling tray 61, a guide groove 62 and a hook 63; symmetrically distributed guide grooves 62 are opened at the lower end of the detachable metal cooling tray 61; symmetrically distributed hooks 63 are fixedly connected to the left end of the detachable metal cooling tray 61; a slot matching the hook 63 is opened at the right end of the machine shell 7. The guide groove 62 is opened in the detachable metal cooling tray 61 mainly to enable the Y-shaped bracket 21 to deliver the heated heat shrinkable tube to the position of the detachable metal cooling tray 61 through the guide groove 62 when the Y-shaped bracket 21 rotates. The Y-shaped bracket 21 maintains the parked angle and retracts (descends). After the Y-shaped bracket 21 retracts, the heated optical fiber heat shrinkable tube remains in the detachable metal cooling tray 61 for cooling. After the Y-shaped bracket 21 retracts in place, the rotating device 3 reverses and returns to the vertical position to wait for the next heating.

[0047] Preferably, the two rotating shafts 13 are connected by a pin; a groove is opened at the upper end of the rotating disc 14, and the nut 16 realizes the integration and reinforcement of the central rotating shaft device 1. The two rotating shafts 13 are ensured to rotate synchronously through the pin. A slot is opened on the rotating disc 14 to reduce the height of the lifting device 2 and save space.

[0048] Please refer to Figures 3-5 , in this embodiment, both sides of the rotating shaft 13 are cylindrical, and the middle is a square columnar structure; the Y-shaped bracket 21 includes a V-shaped bracket 211, a heat insulation connecting pipe 212, a support rod 213, a roller 214 and a first hook 215; the V-shaped bracket 211 and the support rod 213 are provided with studs and are connected through the heat insulation connecting pipe 212. One is to play a heat insulation role, and the other is to make the V-shaped bracket 211 and the support rod 213 a whole structure; symmetrically distributed first hooks 215 are arranged at the lower end of the support rod 213; a roller 214 is installed between the two first hooks 215; the e-shaped turntable 24 includes a limit groove 241, an e-disk hole 242, an e-disk body 243 and a second hook 244; the shaft of the first motor 22 is matched and fastened with the e-disk hole 242; the roller 214 fits with the limit groove 241; the return spring 25 is respectively connected to the first hook 215 and the second hook 244; the roller 214 moves in the limit groove 241 and cooperates with the fixed groove 18 and the bracket hole 19 to jointly ensure the rising or falling of the Y-shaped bracket 21 and play a limiting role.

[0049] Please refer to Figure 1 and Figures 6-7, in this embodiment, the mating positions of the rotating main shaft 34 and the rotating auxiliary shaft 35 with the second gear 32 are square, and the rest are cylindrical. The two sides are positioned by limit pins; the main and auxiliary shaft connecting rod 36 is fastened through the main and auxiliary shaft holes to realize the linkage of the rotating main shaft 34 and the rotating auxiliary shaft 35; the slotted position of the rear shell of the machine case 7 is dust-proofed with soft hair, which is beneficial to the passage of the Y-shaped bracket 21.

[0050] When working, the heating button is activated, and the system sends an instruction to push the cover plate 5 to open. The third motor 51 rotates to drive the flying disc 52 to rotate. The flying disc 52 drives the L-shaped plate 54 to move around the central hole 56 through the connecting rod 53, realizing the opening of the cover plate 5. The heating furnace starts to preheat. When the inductor receives the confirmation signal of the placed optical fiber, the cover plate 5 automatically flips in place and closes, and the heating furnace starts to heat officially; after the heating is completed (the generally set heating time is 30 - 60S), the cover plate 5 flips, and the heating furnace enters the preheating state or is turned off (the preheating mode of the heating furnace is set according to the number of fusions. If the number of fusions required at one time is large, the preheating function is activated; if the number is small, other modes can be selected. It is recommended to turn on the preheating mode for skills competitions or optical cable emergency repairs). The Y-shaped bracket 21 first swings a very small amplitude through the rotating device 3 to separate the heated heat shrinkable sleeve from the heating furnace. The Y-shaped bracket 21 rises. The two Y-shaped brackets 21 are symmetrically distributed. The Y-shaped bracket 21 lifts the heated heat shrinkable sleeve out of the heating furnace. The Y-shaped bracket 21 rotates right, and the rotation angle is about 20 - 30 degrees, and it must not cross the middle area of the cooling tray. The e-disk body 243 of the lifting device 2 rotates back to the initial position. After the Y-shaped bracket 21 returns to the initial position; the second motor 31 of the rotating device 3 rotates back to the initial position. The Y-shaped bracket 21 swings left along the bracket groove of the machine case 7. The Y-shaped bracket 21 is mated with the heating V-groove 41 of the heating furnace and waits for the next heating. The cover plate 5 automatically closes or opens (when the preheating mode of the heating furnace is set, the cover plate 5 can not be closed, reducing the operation process and shortening the time, improving the efficiency), waiting for the next fusion heating operation. In the heating state, the Y-shaped bracket 21 stays in the left groove 42 and the right groove 43 to make up for the heat loss caused by the lack of the heating V-groove 41 (the right side of the Y-shaped bracket 21 can also be a little longer to make up for the position of the right groove 43. Since there are fewer gaps in the right groove 43, it can also be ignored). The Y-shaped bracket 21 rises and swings to the right, and the Y-shaped bracket 21 passes through the right groove 43 and reaches the cooling device 6.

[0051] Through the above steps, the automated design of heating and cooling of fiber optic heat shrinkable sleeves is realized. There is no need for manual fiber extraction and cooling, which shortens the entire fiber optic splicing time; it prevents the fiber from being broken during fiber extraction and improves the splicing quality; the splicing time of 12-core fiber optic is shortened by 30-40%, and the heating yield of the heater is close to 100%. When splicing fiber optic cables, it greatly improves work efficiency, has low cost and high cost performance, which is conducive to winning time for the restoration of communication cables in natural disasters such as earthquakes, fiber optic splicing skills competitions and military exercise cable repair, and ensures the lifeline of communication to solve the problems of easy breakage of fibers during manual heating and cooling operations and low yield.

[0052] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. An automatic heating and cooling device for an optical fiber fusion splicer, comprising a central shaft device (1) and a housing (7); characterized in that: The machine also comprises a lifting device (2), a rotating device (3), a heating device (4), a cover plate (5) and a cooling device (6); an openable and closable cover plate (5) is installed on the upper end of the casing (7); the heating device (4), a central rotating shaft device (1) and a lifting device (2) are installed in the casing (7) in order from top to bottom; the rotating device (3) is installed at the lower right side of the central rotating shaft device (1); The central rotating shaft device (1) comprises a screw hole (10), a fixed cylinder (11), a first bearing (12), a rotating shaft (13), a rotating disk (14), a first gear (15), a nut (16), a screw (17), a fixing groove (18) and a bracket hole (19); the two fixed cylinders (11) are fixed to the welding machine frame through four screw holes (10); the fixed cylinder (11) is embedded with the first bearing (12) and the rotating shaft (13); the first bearing (12) is fastened through the fixing groove (18) and is matched with the bracket hole (19); the inner end of the rotating shaft (13) is fixedly connected with a screw (17); the outer side of the screw (17) is threadedly connected with a nut (16) for fastening the fixed cylinder (11); the rotating disk (14) and the first gear (15) are embedded on the outer side of the middle part of the rotating shaft (13); The lifting device (2) comprises a Y-shaped bracket (21), a first motor (22), an auxiliary limiting device (23), an e-shaped turntable (24) and a return spring (25); the first motor (22) is fixed on the rotating disk (14), the first motor (22) and the e-shaped turntable (24) are coaxially fixed, and two return springs 25 are respectively connected to the Y-shaped bracket (21) and the e-shaped turntable (24); The rotating device (3) comprises a second motor (31), a second gear (32), a left fixed point (33), a rotating main shaft (34), a rotating secondary shaft (35) and a main-secondary shaft connecting rod (36); the center line of the left fixed point (33) and the motor shaft of the second motor (31) are on the same horizontal line; the left fixed point (33) is embedded with a second bearing (331) and a rotating secondary shaft (35); the first motor (22) is fixed on a welding machine bracket; the motor shaft of the first motor (22) is matched with the second gear (32); The heating device (4) comprises a heating V-groove (41), a left groove (42) and a right groove (43); The cover plate (5) comprises a third motor (51), a flying disc (52), a connecting rod (53), an L-shaped plate (54), a rubber pad (55) and a center hole (56); the third motor (51) is coaxial with the flying disc (52); the L-shaped plate (54) is connected to the welding machine through the center hole (56); the connecting rod (53) connects the flying disc (52) and the L-shaped plate (54); The cooling device (6) comprises a detachable metal cooling tray (61), a guide groove (62) and a plug hook (63); the lower end of the detachable metal cooling tray (61) is provided with a guide groove (62) symmetrically distributed frontward and rearward; the left end of the detachable metal cooling tray (61) is fixedly connected with a plug hook (63) symmetrically distributed frontward and rearward; and the right end of the housing (7) is provided with a slot matching the plug hook (63).

2. The automatic heating and cooling device for an optical fiber fusion splicer according to claim 1, characterized in that: The two sides of the rotating shaft (13) are cylinders, and the middle is a square column structure.

3. The automatic heating and cooling device for an optical fiber fusion splicer according to claim 1, characterized in that: The two rotating shafts (13) are connected via a latch.

4. The automatic heating and cooling device for an optical fiber fusion splicer according to claim 1, characterized in that: The upper end of the rotating disk (14) is provided with a groove.

5. The automatic heating and cooling device for an optical fiber fusion splicer according to claim 1, characterized in that: The Y-shaped bracket (21) comprises a V-shaped bracket (211), a heat-insulating connecting pipe (212), a support rod (213), a roller (214) and a first hook (215); the V-shaped bracket (211) and the support rod (213) are provided with studs and are connected via the heat-insulating connecting pipe (212); the lower end of the support rod (213) is provided with first hooks (215) symmetrically distributed on the left and right; and a roller (214) is installed between the two first hooks (215).

6. The automatic heating and cooling device for an optical fiber fusion splicer according to claim 5, characterized in that: The E-type turntable (24) comprises a limiting groove (241), an E-disc hole (242), an E-disc body (243) and a second hook (244); the shaft of the first motor (22) matches and is fastened to the E-disc hole (242); the roller (214) matches the limiting groove (241); the return spring (25) is respectively connected to the first hook (215) and the second hook (244); the roller (214) moves in the limiting groove (241) and cooperates with the fixing groove (18) and the bracket hole (19).

7. The automatic heating and cooling device for an optical fiber fusion splicer according to claim 1, characterized in that: The positions where the rotating main shaft (34) and the rotating secondary shaft (35) match the second gear (32) are square, and the other positions are cylindrical, and the two sides are positioned by limit pins; the main and secondary shaft connecting rods (36) are fastened through the main and secondary shaft holes to realize the linkage of the rotating main shaft (34) and the rotating secondary shaft (35).

8. The automatic heating and cooling device for an optical fiber fusion splicer according to claim 1, characterized in that: Soft fur is used at the slotted position of the rear shell of the casing (7) to prevent dust.

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