CN109633847B - Optical cable take-up - Google Patents

Abstract

The invention provides an optical cable take-up device, belonging to the technical field of electric construction equipment, comprising a base; a support rod, which is arranged on the top of the base; The thread take-up rod includes a vertical support rod arranged on the top of the support rod and a transverse support rod arranged on the upper part of the vertical support rod and vertically connected with the vertical support rod. The top and the free ends of the transverse struts are respectively provided with fixed pulleys for supporting and transmitting the optical cable along the long axis direction of the transverse struts, and the vertical struts and the transverse struts are insulating rods respectively. . The optical cable take-up device provided by the invention aims to solve the technical problem of the lack of optical cable spanning equipment with high safety, convenient operation and guaranteeing the integrity of the optical cable in the current market.

Description

Optical cable take-up

technical field

The invention belongs to the technical field of electric construction equipment, and more particularly relates to an optical cable take-up device.

Background technique

In daily optical cable construction, problems such as crossing various lines, rivers, and obstacles and roads are often encountered. If you use the method of direct throwing, throwing or fixing each wire with insulating ropes, it is easy to short-circuit between phases, the traction wire is easy to be entangled with the wire, and the long-term friction between the optical cable and the wire is easy to damage the wire and the optical cable, and there is a certain safety hazard. And it cannot be operated in wet weather and rainy days. However, the way of crossing the spanning frame requires loading and unloading a large number of sand poles, using a large amount of iron wire, and the operator needs to work at high altitudes. In wet weather and rainy days, electrical conductivity is likely to occur, and external agencies and young crops need to compensate for costs. High altitude cooperation is required.

Therefore, there is an urgent need for an optical cable spanning device with high safety, convenient operation, and guaranteeing the integrity of the optical cable.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an optical cable take-up device, which aims to solve the technical problem of the lack of an optical cable spanning device with high safety, convenient operation, and guaranteeing the integrity of the optical cable in the current market.

In order to achieve the above purpose, the technical solution adopted in the present invention is to provide an optical cable take-up device, comprising: a base;

a support rod, arranged on the top of the base;

The thread take-up rod is arranged on the top of the support rod and is used to support and transmit the optical cable. The horizontal struts are vertically connected to the vertical struts, the top of the vertical struts and the free ends of the lateral struts are respectively provided with fixed devices for supporting and transmitting the optical cable along the long axis direction of the lateral struts. A pulley is provided, and the vertical support rod and the lateral support rod are respectively insulating rods.

Further, the support rod includes a first rod body detachably connected to the base and a second rod body disposed on the top of the first rod body and detachably connected to the first rod body, the vertical support rod It is detachably arranged on the top of the second rod body, and the transverse support rod is detachably connected to the vertical support rod.

Further, the support rod further comprises a first connecting cylinder for connecting the first rod body and the second rod body and a second connecting cylinder for connecting the second rod body and the vertical support rod, The first rod body and the second rod body are respectively inserted at both ends of the first connecting cylinder, and the second rod body and the vertical support rod are respectively inserted at both ends of the second connecting cylinder .

Further, the first connecting cylinder and the second connecting cylinder are respectively detachably connected to the corresponding rod bodies through bolts.

Further, the first rod body, the second rod body and the vertical support rod are respectively provided with at least two mounting holes which are threadedly matched with the bolts.

Further, both sides of the second rod body are respectively provided with pull wire loops for fixing the pull wire, and a handle is also provided on the base.

Further, the optical cable take-up device further includes a fixed guide device for fixing the free end of the optical cable and driving the free end of the optical cable to incline downward, and the fixed guide device includes a roll that is rotatably arranged on the support rod. The reel is wound with a traction rope, and the free end of the traction rope is connected to the gravity block arranged outside the free end of the transverse strut through two fixed pulleys in turn, and the free end of the optical cable passes through the fixing device. Removably connected to the free end of the traction rope.

Further, the fixing device includes a sleeve provided on the free end of the traction rope and used for the optical cable to pass through the hole in the middle, the top of the sleeve is hinged with a backstop for preventing the optical cable from going backwards The free end of the backstop plate is inclined toward the free end of the optical cable, and the free end of the backstop plate is also connected to the bottom of the sleeve through an elastic member, and the elastic member pushes the backstop in a free state The free end of the plate is far away from the bottom of the sleeve, the free end of the backstop plate is provided with a card slot with an opening facing downward and used for accommodating the optical cable, and a card slot is arranged in the card slot for abutting against the optical cable. A one-way drive roller for connecting and forwarding the optical cable.

Further, the one-way transmission rotating roller includes a roller body rotatably connected to the side wall of the card slot, a ratchet wheel sleeved on the outside of the roller body, and a ratchet wheel engaged with the ratchet wheel and used to prevent the ratchet wheel from rotating in the opposite direction. The ratchet pawl, the ratchet wheel and the ratchet pawl are respectively arranged on the outer side of the backstop plate, and the rotating shaft of the roller body is connected to the ratchet wheel through the side wall of the locking groove.

Further, the outer circumference of the fixed pulley is provided with a first accommodating groove for accommodating the optical cable, and the inner wall of the first accommodating groove is provided with a first accommodating groove which communicates with the first accommodating groove and is used for accommodating the traction rope. Two accommodating grooves, and the depth of the second accommodating groove is greater than the diameter of the traction rope.

The beneficial effect of the optical cable take-up provided by the present invention is that compared with the prior art, the optical cable take-up of the present invention is provided with an optical cable take-up that can pick up the optical cable and straddle it to the other side of the obstacle. It is easy to assemble and can be reused. When installing the optical cable, there is no need for the operator to climb to the optical cable take-up for operation, and the safety factor is greatly increased. The vertical support rod and the horizontal support rod are respectively made of insulating rods, so that the optical cable take-up will wear out with the wire sheath in the line in time when it crosses the line, and the optical cable take-up will not lead the current in the wire to the optical cable take-up. This setting greatly improves the safety of the equipment, and at the same time enables the optical cable spanning operation in wet weather and rainy days, ensuring a wide range of applications. The setting of the fixed pulley ensures that the friction coefficient between the optical cable and the optical cable take-up is low, and the outer sheath of the optical cable will not be worn when the optical cable moves on the optical cable take-up, thereby ensuring the integrity of the optical cable. After the device is fixed firmly, only one person can monitor it. In addition, the use of this equipment can effectively reduce the operation time required for the optical cable to cross obstacles, and can save the cost of vehicle transportation, personnel erection, tying steel wire, outsourcing and land occupation compensation required for erecting a shelf, and does not require It will cause the accident of short circuit between phases, avoid the risk of personal electric shock and high drop, and do not damage the wires and optical cables.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present invention. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of an optical cable take-up provided by an embodiment of the present invention;

2 is a schematic structural diagram of an optical cable take-up provided by another embodiment of the present invention;

Fig. 3 is the partial enlarged schematic diagram of A in Fig. 2;

Fig. 4 is the partial enlarged schematic diagram of B in Fig. 3;

5 is a schematic structural diagram of a fixing device adopted in an embodiment of the present invention;

6 is a schematic view of a vertical cross-sectional structure of a fixed pulley used in an embodiment of the present invention.

In the figure: 10, the base; 20, the support rod; 21, the first rod body; 22, the second rod body; 23, the first connecting cylinder; 24, the second connecting cylinder; 25, the bolt; 26, the mounting hole; 27, the cable Ring; 30, thread take-up rod; 31, vertical support rod; 32, horizontal support rod; 33, tee; 40, optical cable; 50, fixed pulley; 60, fixed guide device; 61, reel; 62, traction rope ; 63, gravity block; 70, fixing device; 71, sleeve; 72, stop plate; 73, elastic part; 74, card slot; 80, one-way transmission roller; 81, roller body; 82, ratchet wheel; 83 , pawl; 90, elastic non-slip sleeve; 11, handle; 12, first accommodating groove; 13, second accommodating groove.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Please refer to FIG. 1 and FIG. 2 together, and now the optical cable take-up device provided by the embodiment of the present invention will be described. The optical cable take-up device includes a base 10; a support rod 20 is arranged on the top of the base 10; a wire take-up rod 30 is arranged on the top of the support rod 20 to support and transmit the optical cable 40; 20 The vertical strut 31 at the top of the vertical strut 31 and the transverse strut 32 arranged on the upper part of the vertical strut 31 and vertically connected with the vertical strut 31, the top of the vertical strut 31 and the free end of the lateral strut 32 are respectively provided with useful The fixed pulley 50 is used to support and transmit the optical cable 40 along the long axis direction of the transverse support rod 32 , and the vertical support rod 31 and the transverse support rod 32 are respectively insulating rods.

When laying the optical cable encounters an obstacle that needs to be crossed, install the base 10 to one side of the obstacle (including lines, rivers, roads, etc.), and adjust the orientation of the lateral support rod 32 in the optical cable take-up and the distance from the optical cable take-up The distance of the obstacle is such that the free end of the transverse strut 32 spans from the top of the obstacle to the other side of the obstacle, and then the optical cable 40 is sent to the top of the optical cable take-up device, so that it passes through the two fixed pulleys 50 in turn. Reach the other side of the obstacle. It is also possible to first lay down the optical cable take-up device, install the optical cable 40 on the optical cable take-up device, and fix it with stickers, tapes, etc., and then install the optical cable take-up device. The optical cable 40 can also be installed on the thread take-up rod 30 first, and then the thread take-up rod 30 , the support rod 20 and the base 10 are assembled.

Compared with the prior art, the optical cable take-up provided by the present invention is provided with an optical cable take-up that can pick up the optical cable and straddle it to the other side of the obstacle. There is no need for operators to climb on the cable take-up device for operation when the optical cable is used, and the safety factor is greatly increased. At the same time, in this embodiment, the vertical support rod 31 and the horizontal support rod 32 are respectively made of insulating rods, so that the optical cable take-up will wear out in time with the wire sheath in the line when crossing the line, and the optical cable take-up will not The current in the wire leads to the optical cable take-up device or causes the accident of short circuit between phases. This setting greatly improves the safety of the equipment, and at the same time, the optical cable spanning operation can also be carried out in wet weather and rainy days, ensuring its wider application. scope. The arrangement of the fixed pulley 50 ensures that the friction coefficient between the optical cable 40 and the optical cable take-up is low, and the outer sheath of the optical cable 40 will not be worn when moving on the optical cable take-up, thereby ensuring the integrity of the optical cable 40 . After the device is fixed firmly, only one person can monitor it. In addition, the use of this equipment can effectively reduce the operation time required for the optical cable to cross obstacles, and can save the cost of vehicle transportation, personnel erection, tying steel wire, outsourcing and land occupation compensation required for erecting a shelf, and does not require It will cause the accident of short circuit between phases, avoid the risk of personal electric shock and high drop, and do not damage the wires and optical cables.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 1 and FIG. 2 , the support rod 20 includes a first rod body 21 detachably connected to the base 10 , and a first rod body 21 disposed on the top of the first rod body 21 and connected to the base 10 . The first rod body 21 is detachably connected to the second rod body 22 , the vertical support rod 31 is detachably disposed on the top of the second rod body 22 , and the transverse support rod 32 is detachably connected to the vertical support rod 31 .

The support rod 20 adopts a combination form in which the first rod body 21 and the second rod body 22 are detachably connected, and the lateral support rod 32 and the vertical support rod 31 are detachably connected, which is convenient for the operator to carry out the support rod 20 and the thread take-up rod 30 according to the actual situation. Assembling or disassembling increases the convenience of using and transporting the equipment. At the same time, this setting allows only the corresponding part to be replaced after a certain part of the equipment is worn out, which effectively reduces the maintenance cost of the equipment.

In this embodiment, the detachable connection method of the first rod body 21 and the second rod body 22 and the detachable connection method of the lateral support rod 32 and the vertical support rod 31 can adopt various forms, such as screw connection, plug connection, and fixing connection etc.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 1 and FIG. 2 , the support rod 20 further includes a first connecting cylinder 23 for connecting the first rod body 21 and the second rod body 22 and a The second connecting cylinder 24 connecting the second rod body 22 and the vertical support rod 31, the first rod body 21 and the second rod body 22 are respectively inserted in the two ends of the first connecting cylinder 23, the second rod body 22 and the vertical support rod 31 They are respectively inserted at both ends of the second connecting cylinder 24 .

The first rod body 21 and the second rod body 22 are respectively plugged with the first connecting cylinder 23, and the second rod body 22 and the vertical support rod 31 are respectively plugged with the second connecting cylinder 24, which ensures the convenience of equipment assembly and disassembly, and improves the work efficiency.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 1 and FIG. 2 , the first connecting cylinder 23 and the second connecting cylinder 24 are detachably connected to the corresponding rod bodies through bolts 25 respectively.

The arrangement of the bolts 25 ensures the stability of the connection between the first connecting cylinder 23 and the second connecting cylinder 24 and the corresponding rod bodies respectively, thereby ensuring the smooth and smooth spanning operation of the optical cable.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 1 and FIG. 2 , the first rod body 21 , the second rod body 22 and the vertical support rod 31 are respectively provided with at least two threads threaded with the bolts 25 Matching mounting holes 26.

The installation of the installation holes 26 is convenient for the assembly of the equipment, and at least two installation holes 26 are provided on each rod body, which is convenient for the user to flexibly select the position where the bolts 25 are inserted on each rod body according to the height of the obstacle, thereby realizing the optical cable take-up device. Height adjustment, this setting further improves the convenience of using the device and increases the breadth of its application range.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 1 and FIG. 2 , both sides of the second rod body 22 are respectively provided with pull-wire rings 27 for fixing the pull-wire, and the base 10 is also provided with a handle 11.

When in use, a pull rope is tied to the pull wire loop 27, and after the equipment is placed, the pull rope is fixed on the ground. This setting prevents the equipment from falling over during use, thereby ensuring the smooth operation of the optical cable spanning. The setting of the handle 11 is convenient for the user to lift or move the base 10 as required.

In this embodiment, the number of the first support rods 21 is at least one, and the number of the first support rods 21 can be flexibly set according to the height of the obstacle during use, and two adjacent first support rods 21 can be connected through the first connection The barrel 23 can be detachably connected, so as to realize the adjustment of the height of the optical cable take-up.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 1 and FIG. 2 , the top of the vertical support rod 31 is provided with a tee 33, the fixed pulley 50 is set on the top of the tee 33, and the horizontal support rod 32 is inserted in the side opening of the tee 33 .

The arrangement of the tee 33 realizes the insertion of the lateral support rod 32 and the detachable connection between the fixed pulley 50 and the vertical support rod 31, which further improves the convenience of equipment assembly and maintenance.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 2 , FIG. 3 and FIG. 5 , the optical cable take-up further includes a device for fixing the free end of the optical cable 40 and driving the free end of the optical cable 40 to incline downward. The fixed guide device 60 includes a reel 61 rotatably arranged on the support rod 20, a traction rope 62 is wound on the reel 61, and the free end of the traction rope 62 passes through the two fixed pulleys 50 in turn and is arranged on the lateral support. The gravity block 63 outside the free end of the rod 32 is connected, and the free end of the optical cable 40 is detachably connected to the free end of the traction rope 62 through the fixing device 70 .

When in use, the optical cable 40 is placed on the two fixed pulleys 50, and its free end extends to the outside of the transverse strut 32, and is fixedly connected with the free end of the traction rope 62 through the fixing device 70, and then the optical cable take-up device is assembled. And adjust the position of the optical cable take-up, and then carry out the cable feeding operation. When feeding the cable, first rotate the reel 61 to release the traction rope 62, and the free end of the traction rope 62 drives the free end of the optical cable 40 to move down smoothly under the action of the gravity block 63 until the operator waiting on the other side of the obstacle The free end of the optical cable 40 can be held, and the fixing device 70 is opened, so that the free end of the optical cable 40 is separated from the free end of the pulling rope 62, and then the operator fixes the free end of the optical cable 40 to the winding device for winding operation or diameter dragging the optical cable The free end of 40 performs the wire-up operation. After the optic cable 40 spanning operation is completed, the reel 61 is reversely rotated to make the traction rope 62 return to the initial position, and then the optic cable take-up device is retracted to wait for the next time the optic cable 40 is used across obstacles.

The setting of the fixed guide device 60 in this embodiment realizes the fixing of the free end of the optical fiber cable 40 and the guiding function of the moving direction, and avoids the phenomenon that the optical fiber cable 40 is backward or dropped from the fixed pulley 50 of the optical fiber cable take-up device during the spanning process of the optical fiber cable 40 At the same time, it is convenient for the user to accurately predict the falling area of the free end of the optical cable 40, and to respond to the work in a timely and accurate manner. This setting further improves the convenience of using the device.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 3 to FIG. 5 , the fixing device 70 includes a sleeve disposed on the free end of the pulling rope 62 and used for the optical cable 40 to pass through the central hole 71. The top of the sleeve 71 is hinged with a backstop plate 72 for preventing the optical cable 40 from going backwards. The free end of the backstop plate 72 is inclined towards the free end of the optical fiber cable 40, and the free end of the backstop plate 72 also passes through the elastic member 73 and the sleeve 71. The bottom is connected. In the free state, the elastic member 73 pushes the free end of the backstop plate 72 away from the bottom of the sleeve 71. The free end of the backstop plate 72 is provided with a card slot 74 that opens downward and is used to accommodate the optical cable 40. 74 is provided with a one-way transmission roller 80 for abutting with the optical cable 40 and forwarding the optical cable 40.

When in use, the free end of the optical cable 40 is passed through the gap between the inner wall of the sleeve 71 and the inner wall of the slot 74 in the backstop plate 72. At this time, the one-way transmission roller 80 on the backstop plate 72 is pulled by the elastic member 73. It is in contact with the optical cable 40 at the bottom. When the free end of the optical cable 40 is transmitted forward, that is, when the fixed end of the transverse strut 32 is transmitted to its free end, the one-way transmission roller 80 rotates together with the optical cable 40. When retreating, the one-way transmission roller 80 stops rotating, and the frictional force between it and the optical cable 40 increases, and the free end of the stop plate 72 moves further away from the free end of the optical cable 40 under the action of the elastic member 73, thereby reducing the sleeve. The height of the gap between the inner wall of the barrel 71 and the inner wall of the clamping slot 74 in the backstop plate 72 for the optical cable 40 to pass through, which realizes the clamping of the optical cable 40, avoids its continuous retreat or increases the difficulty of the optical cable 40 retreating, thereby ensuring The normal transmission of the optical fiber cable 40 is ensured.

The arrangement of the elastic member 73 in this embodiment ensures that the one-way transmission roller 80 is always in contact with the optical cable 40 , and the arrangement of the one-way transmission roller 80 reduces the friction between the optical cable 40 and the fixing device 70 when the optical cable 40 is transported in the forward direction. At the same time, the cooperation of the one-way transmission roller 80, the stop plate 72 and the elastic member 73 ensures that the friction force between the fixing device 70 and the optical cable 40 is large enough when the optical cable 40 is transmitted in reverse, thereby preventing the optical cable 40 from retreating or increasing The time for the optical cable 40 to be backed out can gain time for the operator to operate in time, thereby ensuring the normal transmission of the optical cable 40 .

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 4 and FIG. 5 , the one-way transmission roller 80 includes a roller body 81 rotatably connected to the side wall of the clamping slot 74 , and sleeved on the roller body 81 The outer ratchet 82 and the ratchet 82 are engaged with the ratchet 82 and are used to prevent the ratchet 82 from rotating in the opposite direction. The ratchet 82 and the ratchet 83 are respectively arranged on the outer side of the backstop plate 72. The wall is connected to the ratchet 82 .

When the optical cable 40 is conveyed in the forward direction, the roller body 81 rotates normally. When the optical cable 40 is conveyed in the reverse direction, the pawl 83 blocks the ratchet wheel 82, so that the ratchet wheel 82 cannot rotate, thereby making the roller body 81 unable to rotate. The one-way transmission roller 80 is composed of a roller body 81, a ratchet wheel 82 and a pawl 83, and has a simple structure and convenient maintenance.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 5 , the outer sleeve of the roller body 81 is provided with an elastic anti-skid sleeve 90 .

The arrangement of the elastic anti-skid sleeve 90 avoids damage to the outer skin of the optical cable 40 when the roller body 81 is in close contact with the optical cable 40, and at the same time increases the friction between the roller body 81 and the optical cable 40 when the optical cable 40 is retracted, thereby ensuring the fixing device. 70 has a good effect of preventing the optical cable 40 from backing back.

As a specific embodiment of the optical cable take-up provided by the present invention, please refer to FIG. 6 , the outer periphery of the fixed pulley 50 is provided with a first accommodating groove 12 for accommodating the optical cable 40 , and the inner wall of the first accommodating groove 12 is provided with a An accommodating groove 12 communicates with a second accommodating groove 13 for accommodating the traction rope 62 , and the depth of the second accommodating groove 13 is greater than the diameter of the traction rope 62 .

The arrangement of the first accommodating groove 12 and the second accommodating groove 13 realizes the separate placement of the optical cable 40 and the traction rope 62, avoiding contact between the two, thereby reducing the resistance received by the optical cable 40 during the transmission process, reducing the optical cable 40. The risk of fraying of the outer sheath ensures that the spanning operation of the optical cable 40 is carried out properly. The depth of the second accommodating groove 13 is greater than the diameter of the traction rope 62. This arrangement increases the space for the upward movement of the traction rope 62, so that after the optical cable 40 is separated from the traction rope 62, the traction rope 62 is further extended to make the traction rope 62 Keeping the loose state and no longer in close contact with the second accommodating groove 13, this arrangement reduces the risk of abrasion of the traction rope 62 and the inner wall of the second accommodating groove 13, and ensures a longer service life of the equipment.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (8)

1. An optical cable take-up device, characterized in that it includes: base (10); a support rod (20) arranged on the top of the base (10); A thread take-up rod (30) is arranged on the top of the support rod (20) for supporting and transmitting the optical cable (40), and the thread take-up rod (30) comprises a vertical A strut (31) and a transverse strut (32) arranged on the upper part of the vertical strut (31) and vertically connected to the vertical strut (31), the top of the vertical strut (31) and the free ends of the transverse struts (32) are respectively provided with fixed pulleys (50) for supporting and transmitting the optical cables (40) along the long axis direction of the transverse struts (32), and the vertical supports The rod (31) and the transverse strut (32) are respectively insulating rods; The optical cable take-up device further comprises a fixed guide device (60) for fixing the free end of the optical cable (40) and driving the free end of the optical cable (40) to incline downward, the fixed guide device (60) comprising a rotating A reel (61) arranged on the support rod (20), a traction rope (62) is wound on the reel (61), and the free end of the traction rope (62) passes through two fixed pulleys ( 50) is connected with the gravity block (63) arranged outside the free end of the transverse strut (32), the free end of the optical cable (40) is connected to the free end of the traction rope (62) through the fixing device (70) Detachable connection; The fixing device (70) includes a sleeve (71) arranged on the free end of the traction rope (62) and used for the optical cable (40) to pass through the hole in the middle, the sleeve (71) having a sleeve (71). The top is hinged with a backstop plate (72) for preventing the back of the optical cable (40), the free end of the backstop plate (72) is inclined toward the free end of the optical cable (40), and the backstop plate (72) ) The free end is also connected with the bottom of the sleeve (71) through an elastic piece (73), and in a free state, the elastic piece (73) pushes the free end of the backstop plate (72) away from the sleeve (71) ), the free end of the backstop plate (72) is provided with a card slot (74) with an opening facing downward and used for accommodating the optical cable (40). The optical cable (40) abuts against and forwardly transmits the one-way transmission roller (80) of the optical cable (40). 2. The optical cable take-up device according to claim 1, characterized in that: the support rod (20) comprises a first rod body (21) detachably connected with the base (10) and a first rod body (21) arranged on the first A second rod body (22) on top of the rod body (21) and detachably connected to the first rod body (21), the vertical support rod (31) is detachably arranged on the top of the second rod body (22) , and the transverse support rod (32) is detachably connected with the vertical support rod (31). 3. The optical cable take-up device according to claim 2, characterized in that: the support rod (20) further comprises a first rod body (21) for connecting the first rod body (21) and the second rod body (22) A connecting cylinder (23) and a second connecting cylinder (24) for connecting the second rod body (22) and the vertical support rod (31), the first rod body (21) and the second rod body (22) are respectively inserted into both ends of the first connecting cylinder (23), and the second rod body (22) and the vertical support rod (31) are respectively inserted into the second connecting cylinder (24) ) at both ends. 4 . The optical cable take-up device according to claim 3 , wherein the first connecting cylinder ( 23 ) and the second connecting cylinder ( 24 ) are respectively detachably connected to the corresponding rod bodies through bolts ( 25 ). 5 . 5. The optical cable take-up device according to claim 4, characterized in that: the first rod body (21), the second rod body (22) and the vertical support rod (31) are respectively provided with at least Two mounting holes (26) threaded with the bolts (25). 6. The optical cable take-up device according to claim 2, characterized in that: both sides of the second rod body (22) are respectively provided with pull wire loops (27) for fixing the pull wire, and the base (10) is also provided with a pull wire loop (27). A handle (11) is provided. 7. The optical cable take-up device according to any one of claims 1-6, wherein: The one-way transmission roller (80) includes a roller body (81) rotatably connected to the side wall of the clamping groove (74), a ratchet (82) sleeved on the outside of the roller body (81), and The ratchet wheel (82) is engaged with a pawl (83) for preventing reverse rotation of the ratchet wheel (82), the ratchet wheel (82) and the pawl (83) are respectively provided on the backstop plate (72) On the outside of the roller body (81), the rotating shaft of the roller body (81) is connected to the ratchet wheel (82) through the side wall of the card slot (74). 8. The optical cable take-up device according to claim 7, characterized in that: the outer periphery of the fixed pulley (50) is provided with a first accommodating groove (12) for accommodating the optical cable (40). A second accommodating groove (13) communicated with the first accommodating groove (12) and used for accommodating the traction rope (62) is provided on the inner wall of the groove (12), and the second accommodating groove (13) The depth is greater than the diameter of the traction rope (62).

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