CN110203768A - Electric power optical cable connects fixed device - Google Patents

Abstract

The invention relates to the technical field of optical cable fixing, and is an electric optical cable connection and fixing device, which includes an outer cylinder, an inner cylinder, a rotating platform, a driving bevel gear, a roller shaft, a connecting rod, a winding roller and a fixing assembly. The outer cylinder is in the form of Cylindrical, the outer cylinder is equipped with an inner cylinder, the inner cylinder is cylindrical, the inner cylinder is equipped with a rotating platform, and the outer cylinder is equipped with a driving device that can make the rotating platform rotate around its own axis, and the upper end of the rotating platform is fixed. A drive bevel gear is installed. The present invention has a reasonable and compact structure and ingenious conception. Through the cooperation of the upper limit block and the limit groove, the winding roller can only rotate in one direction; The components are convenient for sealing the inner space of the outer cylinder, thereby achieving an effective rainproof effect, improving signal transmission, and having the characteristics of stability, safety and reliability.

Description

Power optical cable connection and fixing device

technical field

The invention relates to the technical field of optical cable fixing, and relates to a power optical cable connection and fixing device.

Background technique

Optical cables are manufactured to meet optical, mechanical or environmental performance specifications. It is a communication cable assembly that uses one or more optical fibers placed in a sheath as a transmission medium and can be used individually or in groups. Optical fiber (optical transmission carrier) is a cable formed by a certain process. The basic structure of an optical cable is generally composed of a cable core, a reinforcing steel wire, a filler, and a sheath. In addition, according to actual needs, due to the limited length of a single optical cable, when the connection distance is too long, multiple cables need to be connected end to end, that is, spliced together. The traditional power cable fixing device has single function and poor practicability. It is not convenient to connect and fix multiple optical cables connected together, and the connection is easy to loose or disconnect, and the model transmission cannot be carried out well; in addition, the connection is encountered. Water and tides will also affect signal transmission.

Contents of the invention

The invention provides a connection and fixing device for electric optical cables, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of loosening or disconnection of optical cable connections.

The technical solution of the present invention is achieved through the following measures: a power optical cable connection and fixing device, including an outer cylinder, an inner cylinder, a rotating platform, a driving bevel gear, a roller shaft, a connecting rod, a winding roller and a fixing assembly, The outer cylinder is cylindrical, the outer cylinder is provided with an inner cylinder, the inner cylinder is cylindrical, the inner cylinder is provided with a rotating platform, and the outer cylinder is provided with a driving device that can make the rotating platform rotate around its own axis. The upper end of the platform is fixed with a driving bevel gear; there are at least two sets of fixing components evenly distributed along the circumference of the outer cylinder, and each set of fixing components includes a fixing rod, a driving screw, a driving bevel gear, a driving sleeve, a translation rod and a clamping sleeve There is a fixed rod installed between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and a transmission screw is installed in the inner cylinder corresponding to the position of each fixed rod, and a drive screw is installed on the inner wall of the inner cylinder corresponding to the outer end of the transmission screw. There is a transmission counterbore, the outer end of the transmission screw is located in the transmission counterbore, and the inner end of the transmission screw is fixed with a transmission bevel gear whose lower end can mesh with the outer side of the driving bevel gear; the outer side of the transmission screw is fixed and installed together with the screw The transmission sleeve, the middle part of the upper end of the transmission sleeve is fixedly equipped with a translation rod, and the upper end of the translation rod is fixedly installed with a clamping sleeve located above the inner cylinder body, the axis direction of the clamping sleeve is consistent with the axis direction of the transmission sleeve; The tight sleeve is provided with a clamping cavity through which the axial direction runs through. The clamping cavity is provided with a clamping adjustment device that can move up and down. The transmission long hole that moves inside and outside in the axial direction of the transmission screw rod; the outer wall of the outer cylinder corresponding to the position above each fixed rod is provided with a cable entrance through the inside and outside, and the outer cylinder and the inner cylinder corresponding to each cable entrance position There are roller shafts between them, and the axis of the roller shaft is perpendicular to the axis of the transmission screw rod. The roller is provided with a limiting assembly capable of unidirectional rotation around its axis; a rain-shielding assembly capable of closing the cable entrance is provided in the cable entrance.

Below is the further optimization or/and improvement to above-mentioned technical scheme of the invention:

The above-mentioned limit assembly may include a support rod, an upper limit block, a lower limit block and a support spring, and the middle part of the fixed rod corresponding to the position below the middle of the winding roller is provided with a mounting hole through up and down, and a support rod is fixedly installed in the mounting hole, and the support rod The upper end of the upper end is located above the fixed rod, and the upper end of the support rod is fixed with an upper limit block. The upper limit block is in the shape of an isosceles right-angled triangular prism, and the outer surface of the upper limit block is inclined on the outside and high on the inside. There are at least three limiting grooves that match the shape of the upper end of the upper limit block on the outside of the middle of the roller. The upper end of the upper limit block is located in the corresponding limit groove; The outer side of the upper part is provided with a support spring.

The above-mentioned clamping adjustment device may include an arc-shaped splint, an adjusting bolt and a first bearing, an arc-shaped splint that can match the inner wall of the clamping sleeve is provided on the inner side of the upper end of the clamping sleeve, and a threaded hole through the upper end is provided on the outer side of the clamping sleeve. The upper end of the arc-shaped plate corresponding to the position of the threaded hole is provided with a mounting counterbore, and an adjusting bolt whose lower end is located in the mounting counterbore is fixedly installed in the threaded hole, and a first bearing is fixedly installed in the mounting counterbore corresponding to the outer side of the lower end of the adjusting bolt. The inner side of the bearing is rotationally connected with the outer side of the lower end of the adjusting bolt.

The above-mentioned rain-shielding assembly may include an upper sealing plate, a lower sealing plate and a return spring, and an upper sealing plate and a lower sealing plate capable of closing the cable inlet are arranged in the cable entrance, and both the upper sealing plate and the lower sealing plate are semicircular , the middle part of the outer wall of the outer cylinder corresponding to the position of the cable entrance is provided with an upper door slot that allows the upper sealing plate to go up into it, and the upper part of the upper sealing plate is located in the upper door slot, corresponding to the upper door slot between the upper end of the upper sealing plate and the upper door slot A return spring is fixed inside, and the middle part of the outer wall of the outer cylinder corresponding to the position of the cable entrance is provided with a lower door groove that allows the lower sealing plate to go down and receive it. The lower part of the lower sealing plate is located in the lower door groove, corresponding to the lower end of the lower sealing plate and Back-moving springs are fixedly installed in the lower door slots between the lower door slots.

The above-mentioned driving device may include a geared motor, a battery and a control switch. The outer cylinder is provided with a geared motor located below the middle of the inner cylinder, and the geared motor is provided with a drive shaft. together; a storage battery is provided in the outer cylinder, and a control switch capable of controlling the start and stop of the deceleration motor is provided on the inner side of the upper end of the external cylinder, and the storage battery is electrically connected with the deceleration motor.

The above can also include a second bearing, the second bearing is fixedly installed in the transmission counterbore corresponding to the outer end of the outer end of the driving screw rod, and the inner side of the second bearing is rotatably connected with the outer end of the outer end of the driving screw rod.

The above-mentioned can also include a cylinder cover and a cover opening handle, the outer cylinder body is a cylindrical shape with an upward opening, a cylinder cover is fixedly installed on the outer side of the upper end of the outer cylinder body, and a cover opening handle is fixedly installed on the upper end of the cylinder cover.

The invention has a reasonable and compact structure and ingenious conception. Through the cooperation of the upper limit block and the limit groove, the winding roller can only rotate in one direction; The components are convenient for sealing the inner space of the outer cylinder, thereby achieving an effective rainproof effect, improving signal transmission, and having the characteristics of stability, safety and reliability.

Description of drawings

Accompanying drawing 1 is the front view sectional enlarged structural schematic diagram of the preferred embodiment.

Accompanying drawing 2 is the top view sectional structural schematic diagram of accompanying drawing 1.

The codes in the drawings are: 1 is the outer cylinder, 2 is the inner cylinder, 3 is the rotating platform, 4 is the driving bevel gear, 5 is the roller shaft, 6 is the connecting rod, 7 is the winding roller, 8 is the fixed Rod, 9 is a transmission screw, 10 is a transmission bevel gear, 11 is a transmission sleeve, 12 is a translation rod, 13 is a clamping sleeve, 14 is a support rod, 15 is an upper limit block, 16 is a lower limit block, 17 For the support spring, 18 is the arc splint, 19 is the adjusting bolt, 20 is the first bearing, 21 is the geared motor, 22 is the battery, 23 is the control switch, 24 is the second bearing, 25 is the cylinder cover, 26 is the upper seal Plate, 27 is a lower sealing plate, 28 is a back-moving spring, 29 is an uncap handle, and 30 is a spacing groove.

Detailed ways

The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.

In the present invention, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout of Figure 1 of the specification, such as: the positional relationship of front, rear, top, bottom, left, right, etc. It is determined according to the layout direction of Figure 1 of the specification.

Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:

As shown in Figures 1 and 2, the power optical cable connection and fixing device includes an outer cylinder 1, an inner cylinder 2, a rotating platform 3, a driving bevel gear 4, a roller shaft 5, a connecting rod 6, a winding roller 7 and a fixing assembly , the outer cylinder 1 is cylindrical, the outer cylinder 1 is provided with an inner cylinder 2, the inner cylinder 2 is cylindrical, the inner cylinder 2 is provided with a rotating platform 3, and the outer cylinder 1 is provided with a rotating platform. The driving device that the platform 3 rotates around its own axis, the upper end of the rotating platform 3 is fixedly equipped with a driving bevel gear 4; the outer cylinder body 1 has at least two sets of fixed components evenly distributed along the circumference, and each set of fixed components includes a fixed rod 8, a transmission Screw rod 9, transmission bevel gear 10, transmission sleeve 11, translation rod 12 and clamping sleeve 13, a fixed rod 8 is fixedly installed between the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2, corresponding to each fixed rod 8 The inner cylinder body 2 of position is provided with transmission screw rod 9, and the inner cylinder body 2 inner wall corresponding to the position of the outer end of the transmission screw rod 9 is provided with a transmission counterbore, and the outer end of the transmission screw rod 9 is located in the transmission counterbore. The inner end of the rod 9 is fixedly equipped with a transmission bevel gear 10 whose lower end can mesh with the outer side of the driving bevel gear 4; the outer side of the transmission screw rod 9 is provided with a transmission sleeve 11 fixedly installed together with the screw thread, and the middle part of the upper end of the transmission sleeve 11 is fixedly installed. There is a translation rod 12, and the upper end of the translation rod 12 is fixedly installed with a clamping sleeve 13 located above the inner cylinder body 2. The axial direction of the clamping sleeve 13 is consistent with the axial direction of the transmission sleeve 11; There is a clamping chamber through which the axial direction runs, and a clamping adjustment device that can move up and down is provided in the clamping chamber, and the top surface of the inner cylinder 2 corresponding to the position above the middle part of the transmission screw rod 9 is provided so that the translation rod 12 can move in the direction of the transmission wire. The transmission long hole for the rod 9 to move inside and outside in the axial direction; the outer wall of the outer cylinder 1 corresponding to the position above each fixed rod 8 is provided with a cable entrance through the inside and outside, and the outer cylinder 1 and the inner cylinder corresponding to each cable entrance position Roller shafts 5 are arranged between the bodies 2, the axis of the roller shafts 5 is perpendicular to the axis of the transmission screw 9, and the two ends of the roller shafts 5 are fixedly installed together with the corresponding positions on the inner wall of the outer cylinder body 1 through the connecting rods 6, and the roller shafts 5. A winding roller 7 is set on the outer side, and the winding roller 7 is provided with a limit assembly capable of unidirectional rotation around its axis; the cable entrance is provided with a rain-shielding assembly capable of closing the cable entrance. According to requirements, the limiting component can be a known ratchet pawl, and the driving device can be a known driving motor; in addition, four sets of fixing components are evenly distributed along the circumference of the outer cylinder 1 . During use, the free ends of a plurality of optical cables are introduced into the outer cylinder body 1 from different cable inlets, and then the outer wall of the winding roller 7 at the corresponding position is wound several times, and then the free ends of the optical cables are The end passes through the clamping sleeve 13, and the optical cable is clamped in the clamping sleeve 13 by the clamping adjustment device. At this time, the driving device is turned on to make the rotating platform 3 rotate, and the drive bevel gear 4 is matched with the transmission bevel gear 10. , to realize the simultaneous rotation of a plurality of transmission screw rods 9, and the screw nut pair composed of the transmission screw rod 9 and the transmission sleeve 11 realizes the movement of the translation rod 12 inside and outside the transmission long hole, that is, the clamping sleeve 13 can move with the translation rod 12. Move inward along the transmission long hole, which is convenient to connect the movable ends of multiple cables together; by setting the limit assembly, the free end of the optical cable can only move inward. If there is an external force to pull the optical cable outward, the One-way locking under the action of the limit component, so as to avoid the cable from being pulled loose or broken at the joint; during use, it is convenient to seal the inner space of the outer cylinder 1 by setting the rain-proof component, thereby achieving effective rain-proof Effect, improve signal transmission.

According to actual needs, the above power optical cable connection and fixing device can be further optimized or/and improved:

As shown in Figures 1 and 2, the limit assembly includes a support rod 14, an upper limit block 15, a lower limit block 16, and a support spring 17, and the middle part of the fixed rod 8 corresponding to the position below the middle part of the winding roller 7 is provided with an up and down through installation. hole, the mounting hole is fixedly equipped with a support rod 14, the upper end of the support rod 14 is located above the fixed rod 8, the upper end of the support rod 14 is fixedly installed with an upper limit block 15, the upper limit block 15 is an isosceles right-angled triangular prism, and the upper limit block The outer surface of 15 is the inclined shape that is low on the outside and high on the inside, and there are at least three spacer slots 30 that match the profile of the upper end of the upper limit block 15 along the circumference of the outer side of the winding roller 7 corresponding to the position of the upper limit block 15. The upper end of the block 15 is located in the corresponding limiting groove 30 ; a supporting spring 17 is provided on the outer side of the upper part of the supporting rod 14 corresponding to the position between the upper limiting block 15 and the fixed rod 8 . During use, through such a setting, the free end of the optical cable can only move inward. If there is an external force to pull the optical cable outward, under the action of the upper limit block 15 and the limit groove 30, it can be locked in one direction. , so as to prevent the cable from being loosened or broken by the tension. According to requirements, the outer wall of the winding roller 7 can be a frosted surface, thereby preventing the optical cable wound on the outer wall from slipping.

As shown in Figures 1 and 2, the clamping adjustment device includes an arc splint 18, an adjusting bolt 19, and a first bearing 20. The inner side of the upper end of the clamping sleeve 13 is provided with an arc splint 18 that can match its inner wall. The outer side of the upper end of the sleeve 13 is provided with a threaded hole through up and down, and the upper end of the arc-shaped plate corresponding to the position of the threaded hole is provided with a mounting counterbore. The threaded hole is fixed with an adjusting bolt 19 whose lower end is located in the mounting counterbore. The first bearing 20 is fixedly installed in the mounting counterbore of the outside, and the inside of the first bearing 20 is connected with the outside of the lower end of the adjusting bolt 19 in rotation. During use, the arc-shaped splint 18 can be moved up and down by rotating the adjusting bolt 19. When the arc-shaped splint 18 goes down, it can cooperate with the inner wall of the clamping sleeve 13, and the cable inserted in the clamping sleeve 13 can be freely The ends are clamped so that they can move inward along with the translation rod 12 along the transmission long hole, thereby facilitating the connection of the movable ends of multiple cables.

As shown in accompanying drawings 1 and 2, the rain-shielding assembly includes an upper sealing plate 26, a lower sealing plate 27 and a return spring 28, and an upper sealing plate 26 and a lower sealing plate 27 capable of closing the cable inlet are arranged in the cable entrance. Both the upper sealing plate 26 and the lower sealing plate 27 are semicircular, and the middle part of the outer wall of the outer cylinder 1 corresponding to the position of the cable entrance is provided with an upper door groove that enables the upper sealing plate 26 to go upward and receive therein, and the upper part of the upper sealing plate 26 is located at the upper door. In the groove, a return spring 28 is fixedly installed in the upper door groove corresponding to the position between the upper end of the upper sealing plate 26 and the upper door groove, and the middle part of the outer wall of the outer cylinder 1 corresponding to the position of the cable entrance is provided to make the lower sealing plate 27 descend into it. The lower door slot, the lower sealing plate 27 bottoms are positioned in the lower door slot, and back-moving spring 28 is fixedly installed in the lower door slot between the lower end of the corresponding lower sealing plate 27 and the lower door slot. During use, it is convenient to seal the inner space of the outer cylinder 1 by setting the upper sealing plate 26 , the lower sealing plate 27 and the return spring 28 , thereby achieving an effective rainproof effect and improving signal transmission.

As shown in accompanying drawings 1 and 2, the driving device includes a geared motor 21, a storage battery 22 and a control switch 23. The outer cylinder 1 is provided with a geared motor 21 located below the middle of the inner cylinder 2, and the geared motor 21 is provided with a drive shaft. , the upper end of the drive shaft is fixedly installed together with the central position of the lower end surface of the rotating platform 3; the outer cylinder 1 is provided with a battery 22, and the inner side of the upper end of the outer cylinder 1 is provided with a control switch 23 capable of controlling the start and stop of the reduction motor 21, and the battery 22 It is electrically connected with the reduction motor 21. According to requirements, the geared motor 21 is an existing known technology, including a motor and its motor control circuit, and the control switch 23 is connected with the control circuit of the geared motor 21 to control the start and stop of the geared motor 21 . During use, through such an arrangement, it is convenient for the movable ends of multiple cables to move toward the center of the upper end of the inner cylindrical body 2 at the same time, thereby facilitating the connection of the movable ends of multiple cables together.

As shown in accompanying drawing 1,2, also comprise the second bearing 24, the second bearing 24 is fixedly installed in the transmission counterbore of corresponding transmission screw mandrel 9 outer ends, the inner side of the second bearing 24 and the outer end outer side of the drive screw mandrel 9 Rotate to connect together. During use, by setting the second bearing 24, the frictional force between the outer end of the drive screw 9 and the drive counterbore when the drive screw 9 rotates is reduced.

As shown in accompanying drawing 1,2, also comprise cylinder cover 25 and uncap handle 29, outer cylinder body 1 is the cylindrical shape that opening upwards, outer cylinder body 1 upper end outer side is fixedly installed with cylinder cover 25 by screw thread, cylinder cover 25 The upper end is fixedly equipped with an uncap handle 29. During use, the inner space of the outer cylinder body 1 is conveniently sealed by setting the cylinder cover 25, thereby achieving an effective rainproof effect and improving signal transmission.

The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and non-essential technical features can be increased or decreased according to actual needs to meet the needs of different situations.

Claims (10)

1. An electric optical cable connection and fixing device is characterized in that it comprises an outer cylinder, an inner cylinder, a rotating platform, a driving bevel gear, a roller shaft, a connecting rod, a winding roller and a fixing assembly, and the outer cylinder is cylindrical, The outer cylinder is provided with an inner cylinder, the inner cylinder is cylindrical, the inner cylinder is provided with a rotating platform, and the outer cylinder is provided with a driving device that can make the rotating platform rotate around its own axis, and the upper end of the rotating platform is fixedly installed with a driving cone. Gears; there are at least two sets of fixed components evenly distributed along the circumference of the outer cylinder, each set of fixed components includes a fixed rod, a transmission screw, a transmission bevel gear, a transmission sleeve, a translation rod and a clamping sleeve, and the inner wall of the outer cylinder is connected to the Fixing rods are fixedly installed between the outer walls of the inner cylinder, and transmission screw rods are arranged in the inner cylinder body corresponding to the position of each fixing rod, and transmission sink holes are arranged on the inner wall of the inner cylinder corresponding to the outer end positions of the transmission screw rods, and the transmission wires The outer end of the rod is located in the transmission counterbore, and the inner end of the transmission screw rod is fixedly equipped with a transmission bevel gear whose lower end can mesh with the outer side of the driving bevel gear; the outer side of the transmission screw rod is provided with a transmission sleeve fixedly installed with it through threads, and the transmission sleeve A translation rod is fixedly installed in the middle of the upper end of the cylinder, and a clamping sleeve located above the inner cylinder body is fixedly installed at the upper end of the translation rod. The axis direction of the clamping sleeve is consistent with the axis direction of the transmission sleeve; A clamping cavity that runs through the axial direction. A clamping adjustment device that can move up and down is provided in the clamping cavity. The top surface of the inner cylinder corresponding to the position above the middle of the drive screw rod is provided to enable the translation rod to move in and out in the direction of the drive screw shaft axis. The transmission long hole; the outer wall of the outer cylinder corresponding to the position above each fixed rod is provided with a cable entrance through the inside and outside, and a roller shaft is provided between the outer cylinder and the inner cylinder corresponding to the position of each cable entrance. The axis of the roller shaft is perpendicular to the axis of the transmission screw, and the two ends of the roller shaft are fixedly installed together with the corresponding positions on the inner wall of the outer cylinder through the connecting rod. The limit component is a one-way rotatable component of the axis; a rain-shielding component capable of closing the cable entrance is arranged in the cable entrance. 2. The power optical cable connection and fixing device according to claim 1, characterized in that the limit assembly includes a support rod, an upper limit block, a lower limit block and a support spring, and the middle part of the fixed rod corresponding to the position below the middle of the winding roller is provided with an upper and lower Through the installation hole, a support rod is fixedly installed in the installation hole. The upper end of the support rod is located above the fixed rod. The upper end of the support rod is fixedly installed with an upper limit block. It is inclined on the outside and high on the inside, corresponding to the position of the upper limit block, there are at least three limit grooves that match the shape of the upper end of the upper end of the winding roller along the circumference, and the upper end of the upper limit block is located at the corresponding limit In the groove; the outer side of the upper part of the support rod corresponding to the position between the upper limit block and the fixed rod is provided with a support spring. 3. The power optical cable connection and fixing device according to claim 1 or 2, characterized in that the clamping adjustment device includes an arc-shaped splint, an adjusting bolt and a first bearing, and the inner side of the upper end of the clamping sleeve is provided with a matching inner wall. The arc-shaped splint, the outer side of the upper end of the clamping sleeve is provided with a threaded hole through up and down, and the upper end of the arc-shaped plate corresponding to the position of the threaded hole is provided with a mounting hole, and the threaded hole is fixed with an adjusting bolt whose lower end is located in the mounting hole. A first bearing is fixedly installed in the installation counterbore on the outer side of the lower end of the adjusting bolt, and the inner side of the first bearing is rotatably connected with the outer side of the lower end of the adjusting bolt. 4. The power optical cable connection and fixing device according to claim 1 or 2, characterized in that the rain-shielding assembly includes an upper sealing plate, a lower sealing plate, and a return spring, and an upper sealing plate capable of closing the cable inlet is provided in the cable inlet. The sealing plate and the lower sealing plate, the upper sealing plate and the lower sealing plate are semicircular, and the middle part of the outer wall of the outer cylinder corresponding to the position of the cable entrance is provided with an upper door groove that allows the upper sealing plate to be retracted into it. Located in the upper door slot, a return spring is fixedly installed in the upper door slot corresponding to the position between the upper end of the upper sealing plate and the upper door slot, and the middle part of the outer wall of the outer cylinder corresponding to the position of the cable entrance is provided with a lower sealing plate that can be retracted downward. Door slot, the bottom of the lower sealing plate is located in the lower door slot, and a return spring is fixedly installed in the lower door slot corresponding to the position between the lower end of the lower sealing plate and the lower door slot. 5. The power optical cable connection and fixing device according to claim 3, characterized in that the rain-shielding assembly includes an upper sealing plate, a lower sealing plate, and a return spring, and an upper sealing plate capable of closing the cable inlet is provided in the cable entrance and the lower sealing plate, the upper sealing plate and the lower sealing plate are semicircular, and the middle part of the outer wall of the outer cylinder corresponding to the position of the cable entrance is provided with an upper door groove that allows the upper sealing plate to move upwards into it, and the upper sealing plate is located at the upper door In the groove, a return spring is fixedly installed in the upper door groove corresponding to the position between the upper end of the upper sealing plate and the upper door groove, and the middle part of the outer wall of the outer cylinder corresponding to the position of the cable entrance is provided with a lower door groove that allows the lower sealing plate to move downward into it , the bottom of the lower sealing plate is located in the lower door slot, and a return spring is fixedly installed in the lower door slot corresponding to the position between the lower end of the lower sealing plate and the lower door slot. 6. The power optical cable connection and fixing device according to claim 1, 2 or 5, characterized in that the driving device includes a geared motor, a storage battery and a control switch, and the outer cylinder is provided with a geared motor located below the middle of the inner cylinder, and the geared motor There is a drive shaft on the top, and the upper end of the drive shaft is fixedly installed with the center of the lower end surface of the rotating platform; a battery is installed in the outer cylinder, and a control switch that can control the start and stop of the deceleration motor is provided on the inner side of the upper end of the outer cylinder. electromechanical connection. 7. The power optical cable connection and fixing device according to claim 2, characterized in that the driving device includes a geared motor, a storage battery and a control switch, the outer cylinder is provided with a geared motor located below the middle of the inner cylinder, and the geared motor is provided with a drive Shaft, the upper end of the drive shaft is fixedly installed with the central position of the lower end surface of the rotating platform; a battery is arranged in the outer cylinder, and a control switch capable of controlling the start and stop of the geared motor is arranged on the inner side of the upper end of the outer cylinder, and the battery is electrically connected with the geared motor. 8. The electric optical cable splicing and fixing device according to claim 1, characterized in that the drive device includes a geared motor, a storage battery and a control switch, the outer cylinder is provided with a geared motor located below the middle of the inner cylinder, and the geared motor is provided with a drive Shaft, the upper end of the drive shaft is fixedly installed with the central position of the lower end surface of the rotating platform; a battery is arranged in the outer cylinder, and a control switch capable of controlling the start and stop of the geared motor is arranged on the inner side of the upper end of the outer cylinder, and the battery is electrically connected with the geared motor. 9. The power optical cable connection and fixing device according to claim 1 or 2 or 5 or 7 or 8, characterized in that it also includes a second bearing, and the second bearing is fixedly installed in the drive counterbore corresponding to the outer end of the drive screw rod , the inner side of the second bearing is rotationally connected with the outer side of the outer end of the drive screw; or/and, it also includes a cover and an opening handle, the outer cylinder is cylindrical with an upward opening, and the outer side of the upper end of the outer cylinder is fixed and installed by threads There is a cylinder cover, and a cover opening handle is fixedly installed on the upper end of the cylinder cover. 10. The power optical cable connection and fixing device according to claim 6, characterized in that it also includes a second bearing, a second bearing is fixedly installed in the drive counterbore corresponding to the outer end of the drive screw rod, and the inside of the second bearing is connected to the drive wire The outer ends of the rods are connected together by rotation; or/and, it also includes a cover and a handle for opening the cover. The outer cylinder is cylindrical with an upward opening. A cover opening handle is installed.