Optical Fiber Drawing Furnace Graphite Component Cleaning Device

Abstract

The present invention relates to the field of optical fiber drawing, specifically to a cleaning device for graphite components of an optical fiber drawing furnace, which is arranged on a platform. The cleaning device includes a lifting rod member coaxially positioned with the graphite placed on the platform. A rotating brush is provided on the lifting rod member, and the rotating brush contacts the inner wall of the graphite. An umbrella support mechanism for collecting impurities is provided at the lower end of the lifting rod member. The umbrella support mechanism is in an inverted state. When the lower end of the lifting rod member extends into the graphite and the umbrella support mechanism extends out of the graphite, the rotating brush is in a rotating state and the umbrella support mechanism is in an open state. The present invention cleans the graphite through the rotating brush and collects the dirt cleaned out by the umbrella support mechanism, which is beneficial to the timely discharge of the dirt, avoids affecting the production of optical fibers, realizes the effective cleaning of the graphite, keeps the graphite clean, reduces manual labor, and improves the cleaning efficiency.

Description

Technical Field

[0001] The present invention relates to the field of optical fiber drawing, and more particularly to a cleaning device for graphite components of an optical fiber drawing furnace. Background Art

[0002] Graphite components are essential equipment components in the optical fiber manufacturing process. For example, graphite sleeves in the process of manufacturing optical fiber preforms. After long-term use, due to the influence of high temperature, scale or graphite attachments are often generated on the inner cavity wall of graphite components under the action of oxidation. The long-term attachment and accumulation of scale or graphite attachments will seriously affect the quality of optical fiber manufacturing. Therefore, in actual production, it is necessary to regularly clean the scale or graphite attachments on the inner cavity wall of such graphite components. At present, the cleaning of scale or graphite attachments on the inner cavity wall of graphite components mostly remains in the stage of manual cleaning. Manual cleaning not only has the problems of low efficiency and high labor cost due to time-consuming and laborious work, but also cannot guarantee the cleaning quality, thus still affecting the quality of optical fiber manufacturing. Moreover, the generation of a large amount of graphite dust during the manual cleaning process will also have a great negative impact on the health of operators.

[0003] The currently disclosed Chinese patent CN202111432948.0, an automatic cleaning device for graphite parts, includes a collection box, a cleaning box and a cleaning component. The cleaning component is arranged in the cleaning box. The collection box includes a horizontal box part and an upright box part located at the rear of the horizontal box part, and the inner cavities of the horizontal box part and the upright box part are communicated to form an integral collection inner cavity. The cleaning box includes a cubic support frame composed of a horizontal cross beam, a horizontal longitudinal beam and columns. The cubic support frame is installed on the horizontal box part. The left side, right side, rear side and top frame plane of the cubic support frame are sealed by a left side plate, a right side plate, a rear side plate and a top plate respectively. A switchable box door is installed on the front frame plane of the cubic support frame. The cleaning component includes a rotary brush, a lifting device and an explosion-proof grinding table with a plurality of through holes for carrying graphite parts. The explosion-proof grinding table is fixedly arranged in the bottom frame plane of the cubic support frame. The internal space of the cleaning box is communicated with the internal space of the bottom horizontal box part through the plurality of through holes of the explosion-proof grinding table. The lifting device can drive the rotary brush to move vertically up and down, so that the rotary brush can extend into the inner cavity of the graphite part carried by the explosion-proof grinding table and contact and rub against the inner cavity wall of the graphite part to complete the surface cleaning of the inner cavity wall.

[0004] According to the above-mentioned patent, the lifting device of the cleaning component of the patent can drive the roller brush to move vertically up and down, so that the roller brush can extend into the inner cavity of the graphite part carried by the explosion-proof grinding table and come into contact with the inner cavity wall of the graphite part to complete the automatic surface cleaning of the inner cavity wall. However, the impurities after graphite cleaning in this patent are not easy to collect. Through the collection of the collection box at the bottom of the graphite part, it still needs to be carried and then used continuously, which is rather inconvenient. Setting a collection box below the graphite part is also inconvenient for the manufacture of optical fibers. Therefore, at present, a cleaning device that can clean the inner wall of the graphite part and immediately discharge the cleaned impurities is needed. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, a cleaning device for the graphite component of an optical fiber drawing furnace is provided. In the present invention, the graphite is cleaned by a rotating brush, and the dirt cleaned out is collected by an umbrella support mechanism, which is beneficial to the timely discharge of the dirt, avoids affecting the production of optical fibers, realizes the effective cleaning of the graphite, keeps the graphite clean, reduces manual labor, and improves the cleaning efficiency.

[0006] To solve the problems of the prior art, the technical solution adopted by the present invention is as follows:

[0007] The present invention provides a cleaning device for the graphite component of an optical fiber drawing furnace, which is arranged on a platform. The cleaning device includes a lifting rod member coaxially positioned with the graphite placed on the platform. A rotating brush is provided on the lifting rod member, and the rotating brush contacts the inner wall of the graphite. An umbrella support mechanism for collecting impurities is provided at the lower end of the lifting rod member. The umbrella support mechanism is in an inverted state. When the lower end of the lifting rod member extends into the graphite and the umbrella support mechanism extends out of the graphite, the rotating brush is in a rotating state and the umbrella support mechanism is in an open state.

[0008] Preferably, the lifting rod member is provided with a first sleeve and a second sleeve. The first sleeve is coaxially sleeved on the upper end of the lifting rod member, and the second sleeve is coaxially sleeved on the lower half of the lifting rod member. A connecting pipe sleeve is rotatably connected between the first sleeve and the second sleeve. Both the first sleeve and the second sleeve are fixedly connected to the lifting rod member. The inner diameters of both the first sleeve and the second sleeve are larger than the outer diameter of the lifting rod member. A water injection joint communicating with its interior is provided on the first sleeve, and a plurality of water holes are opened along the axial direction of the second sleeve.

[0009] Preferably, the rotating brush has a rotating pipe sleeve coaxially sleeved on the second sleeve and a brush part thereon. The rotating pipe sleeve is fixedly connected to the connecting pipe sleeve. Bearings are respectively connected between the two ends of the connecting pipe sleeve and the first sleeve and the second sleeve. A water wheel is fixedly provided in the inner support middle of the connecting pipe sleeve. The inner diameter of the rotating pipe sleeve is larger than the outer diameter of the second sleeve. Both ends of the rotating pipe sleeve are sealed with the second sleeve. A strip-shaped opening is opened along the length direction of the rotating pipe sleeve.

[0010] Preferably, the umbrella support mechanism is provided with a valve, and the valves are multiple, and the multiple valves are evenly distributed along the circumferential direction of the second sleeve, one end of each valve is fixedly connected to the lower end of the second sleeve, a connecting belt is provided between every two adjacent valves, and a resistance component for prompting the valve to open is also provided at the position corresponding to each valve on the second sleeve.

[0011] Preferably, a water inlet is provided at the lower end of the second sleeve for allowing impurities and waste water to enter therein, and the lifting rod is a hollow structure with openings at both ends.

[0012] Preferably, the resistance assembly is provided with a sleeve and an insertion rod, one end of the sleeve is fixed to the lower half of the second sleeve and close to the upper position of the water outlet, the axial direction of the sleeve is perpendicular to the axial direction of the second sleeve, the insertion rod is inserted in the sleeve, the outward end of the insertion rod faces the valve, and a spring mounted on the insertion rod is fixedly connected between the end of the insertion rod and the end of the sleeve.

[0013] Preferably, a through opening communicating with the corresponding sleeve is opened in the lower half of the second sleeve and at the position corresponding to each sleeve, the lower end of the lifting rod is fixedly connected to the second sleeve, and the connection point between the lifting rod and the second sleeve is located between the through opening and the water outlet.

[0014] Preferably, the outward end of the insertion rod is provided with an abutment block which fits with the inner surface of the corresponding valve.

[0015] Preferably, the cleaning device also includes a positioning assembly for fixing the open state of the umbrella support mechanism, and the positioning assembly is arranged on the bottom surface of the platform. When the umbrella support mechanism passes through the graphite and is in an open state, the umbrella support mechanism contacts the positioning assembly and the umbrella support mechanism is in a fixed state.

[0016] Preferably, the positioning assembly is provided with an iron block mounted on the outer surface of each valve, and the positioning assembly is also provided with an electromagnet surrounding the umbrella support mechanism, the electromagnet is fixedly mounted on the platform, and when the valve is in an open state, the iron block and the electromagnet are in contact with each other.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention cleans graphite by a rotating brush and collects the cleaned dirt by an umbrella support mechanism, which is conducive to the timely discharge of dirt and avoids affecting the production of optical fibers. It achieves effective cleaning of graphite, keeps graphite clean, reduces manual labor, and improves cleaning efficiency.

[0019] 2. The present invention opens a water hole on the second sleeve, which enables water to enter between the second sleeve and the lifting rod and then penetrate into the rotating brush through the water hole, thereby wetting the rotating brush, brushing the inner wall of the graphite, improving the cleaning effect, and reducing the generation of graphite dust.

[0020] 3. With the setting of the water wheel in the connecting pipe sleeve in the present invention, as water is injected, the water wheel is driven to rotate, which not only promotes the rotation of the rotating brush, but also promotes the wetting of the rotating brush with water. Without two separate drive sources, the cleaning of graphite by the rotating brush is realized, and the cleaning efficiency is improved. Description of the Drawings

[0021] Figure 1 is a three-dimensional structural schematic diagram of a graphite component cleaning device for an optical fiber drawing furnace;

[0022] Figure 2 is a partial three-dimensional structural cross-sectional view of a graphite component cleaning device for an optical fiber drawing furnace;

[0023] Figure 3 is a right view of a graphite component cleaning device for an optical fiber drawing furnace;

[0024] Figure 4 is Figure 3 a cross-sectional view taken along line A-A of

[0025] Figure 5 is Figure 3 a three-dimensional structural cross-sectional view taken along line A-A of

[0026] Figure 6 is a three-dimensional structural schematic diagram of a cleaning device of a graphite component cleaning device for an optical fiber drawing furnace;

[0027] Figure 7 is a cross-sectional view of a cleaning device of a graphite component cleaning device for an optical fiber drawing furnace;

[0028] Figure 8 is Figure 5 an enlarged view at position B of

[0029] Figure 9 is Figure 7 an enlarged view at position C of

[0030] Figure 10 is Figure 4 an enlarged view at position D of

[0031] The reference numerals in the figure are:

[0032] 1 - Platform;

[0033] 2 - Graphite;

[0034] 3 - Lifting rod;

[0035] 31 - First sleeve; 311 - Water injection joint;

[0036] 32 - Second sleeve; 321 - Water hole; 322 - Water outlet; 323 - Through hole;

[0037] 33-connecting sleeve; 331-bearing; 332-water wheel;

[0038] 4- Rotating brush;

[0039] 41-rotating sleeve; 411-strip opening;

[0040] 42-brush part;

[0041] 5-Umbrella support mechanism;

[0042] 51-valve;

[0043] 52-connecting belt;

[0044] 53-resistance assembly; 531-sleeve; 532-insertion rod; 5321-resistance block; 533-spring;

[0045] 6- Positioning component;

[0046] 61-Iron block;

[0047] 62- Electromagnet. Implementation

[0048] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0049] See also Figures 1 - 5 As shown, a cleaning device for a graphite assembly of an optical fiber drawing furnace is arranged on a platform 1. The cleaning device includes a lifting rod 3 which is in a coaxial position with the graphite 2 placed on the platform 1. A rotating brush 4 is provided on the lifting rod 3. The rotating brush 4 contacts the inner wall of the graphite 2. An umbrella support mechanism 5 for collecting impurities is provided at the lower end of the lifting rod 3. The umbrella support mechanism 5 is in an inverted shape. When the lower end of the lifting rod 3 extends into the graphite 2 and the umbrella support mechanism 5 extends out of the graphite 2, the rotating brush 4 is in a rotating state and the umbrella support mechanism 5 is in an open state.

[0050] When cleaning the inner wall of the graphite 2, first, move the lifting rod member 3 directly above the graphite 2, keeping the lifting rod member 3 and the graphite 2 in a coaxial state. Then, extend the lifting rod member 3 into the graphite 2 until the umbrella support mechanism 5 on the lifting rod member 3 passes through the bottom of the graphite 2, and then the lifting rod member 3 stops descending. At this time, the rotary brush 4 is in contact with the inner wall of the graphite 2. Drive the rotary brush 4 to brush the inner wall of the graphite 2. During the startup process of the rotary brush 4, the umbrella support mechanism 5 is also started simultaneously. The umbrella support mechanism 5 is in an inverted state. The umbrella support mechanism 5 is in a retracted state during the process of extending into the graphite 2, and when the umbrella support mechanism 5 passes through the graphite 2, the umbrella support mechanism 5 opens to collect the fallen impurities and waste water. There is no need to place a collection box below the graphite 2, which does not hinder the manufacture of optical fibers and is convenient for treating dirt. Until the cleaning of the graphite 2 is completed, the lifting rod member 3 is then withdrawn from the graphite 2.

[0051] See Figures 6 - 8 As shown, the lifting rod member 3 is provided with a first sleeve 31 and a second sleeve 32. The first sleeve 31 is coaxially sleeved on the upper end of the lifting rod member 3, and the second sleeve 32 is coaxially sleeved on the lower half of the lifting rod member 3. A connecting pipe sleeve 33 is rotatably connected between the first sleeve 31 and the second sleeve 32. Both the first sleeve 31 and the second sleeve 32 are fixedly connected to the lifting rod member 3. The inner diameters of both the first sleeve 31 and the second sleeve 32 are larger than the outer diameter of the lifting rod member 3. The first sleeve 31 is provided with a water injection joint 311 communicating with its interior, and a plurality of water holes 321 are axially opened on the second sleeve 32.

[0052] After the lifting rod member 3 extends into the graphite 2, it is connected to an external water pump through the water injection joint 311 for water filling. Water enters between the first sleeve 31 and the lifting rod member 3, flows downward into the connecting pipe sleeve 33, and then flows into the space between the second sleeve 32 and the lifting rod member 3. Since the water holes 321 are opened on the second sleeve 32, the water will penetrate through the water holes 321 onto the rotary brush 4 to moisten the rotary brush 4, which is more beneficial for the rotary brush 4 to clean the inner wall of the graphite 2 and also reduces the generation of graphite 2 dust.

[0053] See Figures 7 - 9 As shown, the rotary brush 4 has a rotary sleeve 41 coaxially sleeved on the second sleeve 32 and the brush part 42 thereon. The rotary sleeve 41 is fixedly connected to the connecting pipe sleeve 33. Bearings 331 are respectively connected between the two ends of the connecting pipe sleeve 33 and the first sleeve 31 and the second sleeve 32. A water wheel 332 is fixedly provided in the middle of the inner support of the connecting pipe sleeve 33. The inner diameter of the rotary sleeve 41 is larger than the outer diameter of the second sleeve 32. Both ends of the rotary sleeve 41 and the second sleeve 32 are in a sealed state. A strip-shaped opening 411 is axially opened on the rotary sleeve 41 along its length.

[0054] When water enters the connecting sleeve 33, since the connecting sleeve 33 is connected to the first sleeve 31 and the second sleeve 32 through the bearing 331, and a water wheel 332 is also provided around the lifting rod 3 in the connecting sleeve 33, the water will drive the connecting sleeve 33 to rotate after passing through the water wheel 332, and the lifting rod 3 and the first sleeve 31 and the second sleeve 32 will remain stationary. Since the connecting sleeve 33 and the rotating sleeve 41 are fixedly connected, the rotating sleeve 41 also rotates therewith, so that the brush part 42 on the rotating sleeve 41 can scrub the inner wall of the graphite 2.

[0055] See also Figure 6 , Figure 7 and Figure 10 As shown, the umbrella support mechanism 5 is provided with a valve 51, and the valve 51 has a plurality of valves 51, and the plurality of valves 51 are evenly distributed along the circumferential direction of the second sleeve 32, one end of each valve 51 is fixedly connected to the lower end of the second sleeve 32, a connecting belt 52 is provided between every two adjacent valves 51, and a resistance component 53 for prompting the valve 51 to open is also provided at the position corresponding to each valve 51 on the second sleeve 32.

[0056] When the umbrella support mechanism 5 is at the bottom of the graphite 2, under the action of the resistance component 53, the valve 51 is squeezed outward from the retracted state to the expanded state, all the valves 51 are expanded at the same time, and the connecting belt 52 is also expanded accordingly to form a complete umbrella pocket structure. Since the umbrella pocket structure is inverted, impurities and waste water falling from the graphite 2 are collected therein, which is conducive to the treatment of dirt, does not affect the subsequent production of optical fibers, and does not produce unpleasant odors or dust.

[0057] See also Figure 6 As shown, a water inlet 322 is provided at the lower end of the second sleeve 32 for impurities and waste water to enter therein, and the lifting rod 3 is a hollow structure with openings at both ends.

[0058] When impurities and wastewater are in the umbrella structure composed of multiple valves 51, the impurities and wastewater will flow along the slope to the water outlet 322 opened on the second sleeve 32. As the lifting rod 3 inhales air, the impurities and wastewater are sucked out, achieving the effect of timely discharge.

[0059] See also Figure 7 and Figure 10 As shown, the resistance assembly 53 is provided with a sleeve 531 and an insertion rod 532. One end of the sleeve 531 is fixed to the lower half of the second sleeve 32 and close to the upper position of the water inlet 322. The axial direction of the sleeve 531 is perpendicular to the axial direction of the second sleeve 32. The insertion rod 532 is inserted in the sleeve 531. The outward end of the insertion rod 532 faces the valve 51. A spring 533 mounted on the insertion rod 532 is fixedly connected between the end of the insertion rod 532 and the end of the sleeve 531.

[0060] When the resistance component 53 drives the valve 51, the insertion rod 532 pushes the valve 51 outward, and the valve 51 is unfolded accordingly, and the spring 533 is in a stretched state. When the insertion rod 532 returns to its original position, under the action of the spring 533, the insertion rod 532 returns to its original position to relieve the pressure on the valve 51, and the spring 533 returns to its normal state. Since the valve 51 is flexible, the valve 51 will automatically recover when not under pressure.

[0061] See also Figure 10 As shown, a through opening 323 communicating with the corresponding sleeve 531 is provided in the lower half of the second sleeve 32 and at the position corresponding to each sleeve 531, the lower end of the lifting rod 3 is fixedly connected to the second sleeve 32, and the connection point between the lifting rod 3 and the second sleeve 32 is located between the through opening 323 and the water outlet 322.

[0062] When part of the water enters the water hole 321, part of the water will flow into the through port 323 and then into each sleeve 531, exerting an outward thrust on the insertion rod 532, thereby achieving the effect of pushing the insertion rod 532 without the need for an additional driving source.

[0063] See also Figure 10 As shown, the outward end of the insertion rod 532 is provided with a resistance block 5321 that fits with the inner surface of the corresponding valve 51.

[0064] When the insertion rod 532 presses against the valve 51 , in order to prevent slipping, the resistance block 5321 provided on the surface of the valve 51 is engaged with to keep the valve 51 stable when being pushed open.

[0065] See also Figure 2 As shown, the cleaning device also includes a positioning assembly 6 for fixing the open state of the umbrella support mechanism 5. The positioning assembly 6 is arranged on the bottom surface of the platform 1. When the umbrella support mechanism 5 passes through the graphite 2 and is in an open state, the umbrella support mechanism 5 contacts the positioning assembly 6, and the umbrella support mechanism 5 is in a fixed state.

[0066] When the valve 51 is unfolded, the valve 51 will contact the positioning component 6. Under the action of the positioning component 6, the unfolding range of the valve 51 is limited to prevent the valve 51 from unfolding too much and causing waste water to flow out.

[0067] See also Figure 10 As shown, the positioning assembly 6 is provided with an iron block 61 installed on the outer surface of each valve 51. The positioning assembly 6 is also provided with an electromagnet 62 surrounding the umbrella support mechanism 5. The electromagnet 62 is fixedly installed on the platform 1. When the valve 51 is in an open state, the iron block 61 and the electromagnet 62 are in contact with each other.

[0068] After the valve 51 is deployed, the electromagnet 62 is energized. The iron block 61 on the valve 51 will come into contact with the electromagnet 62, and thus the iron block 61 is adsorbed on the electromagnet 62, maintaining the stability of the deployed valve 51 and also maintaining the degree of deployment of the valve 51, prompting the bottom of the graphite 2 to be in a closed state, preventing wastewater from flowing out and affecting the external environment.

[0069] The present invention cleans the graphite 2 by means of the rotary brush 4 and collects the dirt removed through the umbrella support mechanism 5, which is conducive to the timely discharge of the dirt, avoids affecting the optical fiber production, realizes the effective cleaning of the graphite 2, keeps the graphite 2 clean, reduces the manual labor, and improves the cleaning efficiency.

[0070] The above embodiments only represent one or several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. The cleaning device for the graphite components of the optical fiber drawing furnace is arranged on the platform (1), and is characterized in that, The cleaning device comprises a lifting rod (3) coaxially positioned with the graphite (2) placed on the platform (1); a rotating brush (4) is provided on the lifting rod (3); the rotating brush (4) contacts the inner wall of the graphite (2); an umbrella support mechanism (5) for collecting impurities is provided at the lower end of the lifting rod (3); the umbrella support mechanism (5) is in an inverted state; when the lower end of the lifting rod (3) extends into the graphite (2) and the umbrella support mechanism (5) extends out of the graphite (2), the rotating brush (4) is in a rotating state and the umbrella support mechanism (5) is in an open state; The lifting rod (3) is provided with a first sleeve (31) and a second sleeve (32); The umbrella support mechanism (5) is provided with a valve (51), the valve (51) having a plurality of valves (51), the plurality of valves (51) being evenly distributed along the circumferential direction of the second sleeve (32), one end of each valve (51) being fixedly connected to the lower end of the second sleeve (32), a connecting belt (52) being provided between each two adjacent valves (51), and a resisting component (53) for urging the valve (51) to open is also provided at a position corresponding to each valve (51) on the second sleeve (32); The cleaning device further comprises a positioning assembly (6) for fixing the open state of the umbrella support mechanism (5); the positioning assembly (6) is arranged on the bottom surface of the platform (1); when the umbrella support mechanism (5) passes through the graphite (2) and is in the open state, the umbrella support mechanism (5) contacts the positioning assembly (6), and the umbrella support mechanism (5) is in a fixed state; The positioning assembly (6) is provided with an iron block (61) mounted on the outer surface of each valve (51). The positioning assembly (6) is also provided with an electromagnet (62) surrounding the umbrella support mechanism (5). The electromagnet (62) is fixedly mounted on the platform (1). When the valve (51) is in an open state, the iron block (61) and the electromagnet (62) are in a state of contact with each other.

2. The cleaning device for the graphite component of the optical fiber drawing furnace according to claim 1, wherein The first sleeve (31) is coaxially sleeved on the upper end of the lifting rod (3), and the second sleeve (32) is coaxially sleeved on the lower half of the lifting rod (3). A connecting sleeve (33) is rotatably connected between the first sleeve (31) and the second sleeve (32). Both the first sleeve (31) and the second sleeve (32) are fixedly connected to the lifting rod (3). The inner diameters of the first sleeve (31) and the second sleeve (32) are larger than the outer diameter of the lifting rod (3). The first sleeve (31) is provided with a water injection joint (311) connected to the interior thereof, and the second sleeve (32) is provided with a plurality of water holes (321) along the axial direction thereof.

3. The fiber drawing furnace graphite component cleaning device according to claim 2, characterized in that, The rotating brush (4) comprises a rotating sleeve (41) coaxially sleeved on the second sleeve (32) and a brush portion (42) thereon; the rotating sleeve (41) is fixedly connected to the connecting sleeve (33); bearings (331) are respectively connected between the first sleeve (31) and the second sleeve (32) at both ends of the connecting sleeve (33); a water wheel (332) is also provided in the connecting sleeve (33) around the lifting rod (3); the inner diameter of the rotating sleeve (41) is greater than the outer diameter of the second sleeve (32); both ends of the rotating sleeve (41) and the second sleeve (32) are sealed; and a strip-shaped opening (411) is provided on the rotating sleeve (41) along its length direction.

4. The fiber drawing furnace graphite component cleaning device according to claim 2, wherein, The lower end of the second sleeve (32) is provided with a water inlet (322) for impurities and waste water to enter therein, and the lifting rod (3) is a hollow structure with openings at both ends.

5. The optical fiber drawing furnace graphite component cleaning device according to claim 4, wherein The abutment assembly (53) is provided with a sleeve (531) and an insertion rod (532); one end of the sleeve (531) is fixed to the lower half of the second sleeve (32) and close to the upper position of the water inlet (322); the axial direction of the sleeve (531) is perpendicular to the axial direction of the second sleeve (32); the insertion rod (532) is inserted into the sleeve (531); the outward end of the insertion rod (532) faces the valve (51); and a spring (533) sleeved on the insertion rod (532) is fixedly connected between the end of the insertion rod (532) and the end of the sleeve (531).

6. The optical fiber drawing furnace graphite component cleaning device according to claim 5, characterized in that, A through opening (323) communicating with the corresponding sleeve (531) is provided in the lower half of the second sleeve (32) and at a position corresponding to each sleeve (531); the lower end of the lifting rod (3) is fixedly connected to the second sleeve (32); and the connection point between the lifting rod (3) and the second sleeve (32) is located between the through opening (323) and the water outlet (322).

7. The cleaning device for the graphite component of the optical fiber drawing furnace according to claim 5, characterized in that, The outward end of the insertion rod (532) is provided with a resistance block (5321) that fits with the inner surface of the corresponding valve (51).

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