阅读说明：本技术 一种输电线路线缆防脱落接线方法 (Anti-drop wiring method for power transmission line cable ) 是由 王文艳 于 2019-05-05 设计创作，主要内容包括：本发明涉及一种输电线路线缆防脱落接线插头,包括插头本体、驱动装置、锁止插头、矫直插板、布线侧腔；所述输电线路线缆防脱落接线插头的使用方法,包括以下步骤：步骤1,调整接线插头；步骤2,插入暗盒本体a；步骤3,锁止接线插头。所述接线插头可以插入暗盒本体并进行固定和矫直：通过转动所述主动转盘带动所述外螺纹管和内螺纹管的相近运动,所述内螺纹管驱动所述锁止插头伸出到防脱插孔内固定,所述外螺纹管驱动所述矫直插板插入所述矫直插孔内进行辅助矫直。本发明所述的一种输电线路线缆防脱落接线插头,所述矫直插板的内置套筒、外置套筒共同作用实现距离放大效应；所述转向链轮实现从动套筒在左右方向上的距离放大效应。(The invention relates to an anti-drop wiring plug for a power transmission line cable, which comprises a plug body, a driving device, a locking plug, a straightening plug board and a wiring side cavity, wherein the plug body is provided with a plug body; the use method of the anti-drop wiring plug of the power transmission line cable comprises the following steps: step 1, adjusting a wiring plug; step 2, inserting the cassette body a; and step 3, locking the wiring plug. The wiring plug can be inserted into the cassette body and fixed and straightened: through rotating the initiative carousel drives the similar motion of external screw thread pipe and internal thread pipe, the internal thread pipe drive the locking plug stretches out the anticreep jack internal fixation, the external screw thread pipe drive the aligning picture peg inserts assist the aligning in the aligning picture peg. According to the anti-drop wiring plug for the power transmission line cable, the built-in sleeve and the built-out sleeve of the straightening plugboard act together to achieve a distance amplification effect; the steering sprocket achieves a distance amplification effect of the driven sleeve in the left-right direction.)

1. An anti-drop wiring method for a power transmission line cable is characterized in that:

inserting a power transmission line cable anti-drop wiring plug into a corresponding power transmission line cable anti-drop wiring cassette;

transmission line cable anti-drop wiring plug includes:

the plug comprises a plug body (1), a driving device (2), a locking plug (3), a straightening inserting plate (4) and a wiring side cavity (5);

the plug body (11) comprises: :

the rectangular main shell (11) is hollow and rectangular, a rear left hole (11a) is formed in the left side of the rear end face of the rectangular main shell (11), a front right hole (11b) is formed in the right side of the front end face of the rectangular main shell (11), and a front left hole (11c) is formed in the left side of the front end face of the rectangular main shell (11);

the transmission auxiliary shell (12) is arranged on the left side of the front end face of the rectangular main shell (11), the transmission auxiliary shell (12) is communicated with the front left hole (11c), and an auxiliary shell right hole (12a) is formed in the right end face of the transmission auxiliary shell (12);

the driving device (2) is used for driving the locking plug (3) and the straightening inserting plate (4) to stretch, and the driving device (2) comprises:

the external threaded pipe assembly (21) comprises a supporting mandrel (21a) arranged in the rectangular main shell (11) along the front-back direction, a supporting longitudinal rod (21b) arranged below the supporting mandrel (21a), an external threaded pipe (21c) slidably sleeved on the supporting mandrel (21a), and a driven sliding hole (21d) which is arranged in the front half part of the lower end of the external threaded pipe (21c) along the front-back direction and is used for accommodating the supporting longitudinal rod (21b), wherein a reset pressure spring (21e) is wound on the outer wall of the external threaded pipe (21c) in front of the supporting longitudinal rod (21 b);

the outer wall of the inner threaded pipe (22) is circumferentially and uniformly provided with first insections (22a) arranged along the front-back direction, and the front end of the outer wall of the inner threaded pipe (22) is provided with a driving groove (22 b);

the driving rotating shaft (23) comprises a driving shaft body (23a) which is rotatably arranged in the rear left hole (11a), a driving turntable (23b) which is arranged behind the driving shaft body (23a), and second insections (23c) which are uniformly distributed in the front of the driving shaft body (23a) in the circumferential direction and are in transmission connection with the first insections (22 a);

the locking plug (3) comprises:

the linkage shifting fork (31) comprises a sliding rod sleeve ring (31a) arranged on the left side of the inner cavity of the rectangular main shell (11), a shifting fork rod body (31b) inserted into the sliding rod sleeve ring (31a) along the front-back direction, and a shifting fork sleeve ring (31c) arranged at the rear end of the shifting fork rod body (31b) and inserted into the lower edge of the driving groove (22b), wherein a driving rack (31d) is arranged at the upper end of the right side of the shifting fork rod body (31 b);

the sliding insertion cylinder (32) comprises a fixed cylinder core (32a) fixed on the inner wall of the left side of the transmission auxiliary shell (12), a driven sleeve (32b) which is slidably inserted on the fixed cylinder core (32a) and inserted into the auxiliary shell right hole (12a), and a driven rack (32c) formed at the upper end of the driven sleeve (32 b); (ii) a

The steering chain wheel (33) is rotatably arranged at the upper half part of the inner cavity of the transmission auxiliary shell (12), and the steering chain wheel (33) at least comprises a pinion gear in transmission connection with the driving rack (31d) and a bull gear coaxially arranged above the pinion gear and in transmission connection with the driven rack (32 c);

the straightening inserting plate (4) comprises:

the cover sealing mandrel (41) is arranged on the right half part of the rear end face of the rectangular main shell (11) along the longitudinal direction;

the built-in sleeve (42) is slidably inserted on the cover mandrel (41), the built-in sleeve (42) penetrates through the front right hole (11b), the left side of the built-in sleeve (42) is connected with the right side of the external threaded pipe (21c) through a spring stop lever (42a), and the spring stop lever (42a) is stopped in front of the reset pressure spring (21 e);

the wiring side cavity (5) is arranged on the left end face of the rectangular main shell (1), a lead is arranged in the wiring side cavity (5), and a movable contact (51) electrically connected with the lead is arranged in front of the left side of the wiring side cavity (5);

transmission line cable anti-drop wiring cassette includes:

the cassette comprises a cassette body (a) which is embedded in advance, a connecting plug block (a1) arranged at the right front of the cassette body (a), an anti-falling jack (a2) arranged at the left side of the connecting plug block (a1) and a straightening jack (a3) arranged at the rear end of the connecting plug block (a1), wherein a fixed contact (a4) is arranged at the left side of the cassette body (a);

the anti-drop wiring method for the power transmission line cable comprises the following steps:

step 1, adjusting a wiring plug:

the driving turntable (23b) is rotated in the forward direction to drive the driving shaft body (23a) and the second gear (23c) to rotate;

the second insection (23c) acts on the first insection (22a) to drive the internal threaded tube (22) to rotate relative to the external threaded tube (21c), and the internal threaded tube (22) and the external threaded tube (21c) make a mutual approaching movement in the front-rear direction:

the first half of the movement:

due to the forward pushing force of the reset pressure spring (21e) on the spring stop rod (42a) and the external threaded pipe (21c), the external threaded pipe (21c) is tightly abutted against the front end of the inner wall of the rectangular main shell (11);

at the moment, the internal threaded pipe (22) and the external threaded pipe (21c) move close to each other in the front-back direction, namely the internal threaded pipe (22) rotates to move forwards until the internal threaded pipe abuts against the back of the supporting longitudinal rod (21b), and meanwhile, the internal threaded pipe (22) and the driving groove (22b) drive the shifting fork lantern ring (31c), the shifting fork rod body (31b) and the driving rack (31d) to move upwards;

the driving rack (31d) goes upward to drive the pinion and the gearwheel of the steering chain wheel (33) to rotate clockwise, and finally drives the driven rack (32c) and the sliding insertion cylinder (32) to retract leftwards;

the second half of the movement:

the internal thread pipe (22) abuts against the rear part of the supporting longitudinal rod (21b) and cannot move upwards continuously, and at the moment, the internal thread pipe (22) and the external thread pipe (21c) move close to each other in the front-rear direction to show that the external thread pipe (21c) and the spring stop lever (42a) overcome the downward movement of the reset pressure spring (21 e);

the built-in sleeve (42) descends along a cover mandrel (41), and the first rotating wheel (44a) rotates clockwise;

the first rotating wheel (44a) drives the second rotating wheel (44b) to rotate clockwise through the transmission rotating wheel (44 c);

the second rotating wheel (44b) drives the external sleeve (43) to move downwards relative to the internal sleeve (42);

the external sleeve (43) and the internal sleeve (42) are all retracted into the rectangular main shell (11);

step 2, insert cassette body (a):

inserting the wiring plug forward into the cassette body (a);

the movable contact (51) is in preliminary contact connection with the fixed contact (a 4);

step 3, locking the wiring plug:

the driving turntable (23b) rotates reversely to drive the driving shaft body (23a) and the second gear (23c) to rotate reversely;

the second insection (23c) acts on the first insection (22a) to drive the internal threaded pipe (22) to rotate relative to the external threaded pipe (21c), and the internal threaded pipe (22) and the external threaded pipe (21c) move away from each other in the front-back direction:

the first half of the movement:

due to the forward pushing force of the reset pressure spring (21e) on the spring stop lever (42a) and the external threaded pipe (21c), the movement of the internal threaded pipe (22) and the external threaded pipe (21c) away from each other in the front-back direction is represented as the upward movement of the external threaded pipe (21c) and the spring stop lever (42a) until the external threaded pipe (21c) abuts against the front of the inner wall of the rectangular main shell (11), and in the process, the external sleeve (43) is inserted into the straightening insertion hole (a3) along with the upward reset of the external sleeve (43);

the second half of the movement:

after the external thread pipe (21c) and the spring stop lever (42a) abut against the front of the inner wall of the rectangular main shell (11), the movement that the internal thread pipe (22) and the external thread pipe (21c) are separated from each other in the front-rear direction is represented as the downward movement of the internal thread pipe (22), and in the process, along with the downward movement of the driving rack (31d) and the rightward protrusion of the driven rack (32c), the driven rack (32c) is inserted into the anti-falling inserting hole (a2) to complete the fixation.

2. The power transmission line cable anti-drop wiring method according to claim 1, characterized in that: the straightening inserting plate (4) further comprises:

the external sleeve (43) is slidably inserted into the internal sleeve (42), and a sleeve side hole (43a) for accommodating the insertion of the spring stop lever (42a) is formed in the rear half part of the left side of the external sleeve (43);

a transmission (44) comprising:

the first rotating wheel (44a) is rotatably arranged at the left rear part of the right part of the built-in sleeve (42) positioned on the cover sealing mandrel (41), and the first rotating wheel (44a) is in transmission connection with the straightening inserting plate (41);

the second rotating wheel (44b) is rotatably arranged at the right front part of the right side part of the sealing core shaft (41) of the internal sleeve (42), and the second rotating wheel (44b) is in transmission connection with the inner wall of the external sleeve (43);

and the transmission rotating wheel (44c) is rotatably arranged on the right side part of the built-in sleeve (42) positioned on the cover mandrel (41), and the transmission rotating wheel (44c) is in transmission connection with the first rotating wheel (44a) and the second rotating wheel (44b) respectively.

3. The power transmission line cable anti-drop wiring method according to claim 2, characterized in that: and a reinforcing rib (41a) connected with the rear end face of the rectangular main shell (11) is further arranged on the right side of the lower end of the sealing cover mandrel (41).

Technical Field

The invention relates to the technical field of plugs, in particular to an anti-drop wiring method for a power transmission line cable.

Background

A plug and socket mating is required at the wire connections to make the physical connection. Taking the network cable connector as an example, the network cable connector (also a crystal head) is arranged at the end part of the network cable, the crystal head is provided with a shaping elastic sheet, and the shaping elastic sheet is popped out and clamped after being inserted into the network cable jack so as to ensure that the network cable connector cannot be separated. At present, the wire plug is directly inserted into the jack of the socket, but in some special occasions, especially occasions needing to ensure that the wire plug can not be separated randomly, the anti-drop wiring plug needs to be designed to avoid separation.

Disclosure of Invention

In order to solve the technical problems in the background technology, the invention provides an anti-drop wiring plug for a power transmission line cable and a using method thereof, wherein the wiring plug can be inserted into a cassette body and is fixed and straightened; the distance amplification effect is realized under the combined action of the internal sleeve and the external sleeve of the straightening inserting plate; the steering sprocket achieves a distance amplification effect of the driven sleeve in the left-right direction.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a transmission line cable anti-drop wiring plug which characterized in that: the plug comprises a plug body, a driving device, a locking plug, a straightening inserting plate and a wiring side cavity;

the plug body includes:

the rectangular main shell is hollow and rectangular, a rear left hole is formed in the left side of the rear end face of the rectangular main shell, a front right hole is formed in the right side of the front end face of the rectangular main shell, and a front left hole is formed in the left side of the front end face of the rectangular main shell;

the transmission auxiliary shell is arranged on the left side of the front end face of the rectangular main shell, the transmission auxiliary shell is communicated with the front left hole, and an auxiliary shell right hole is formed in the right end face of the transmission auxiliary shell;

the drive arrangement is used for the flexible of drive locking plug and straightening picture peg, drive arrangement includes:

the external threaded pipe assembly comprises a supporting mandrel arranged in the rectangular main shell along the front-back direction, a supporting longitudinal rod arranged below the supporting mandrel, an external threaded pipe slidably sleeved on the supporting mandrel, and a driven slide hole arranged in the front half part of the lower end of the external threaded pipe along the front-back direction and used for accommodating the supporting longitudinal rod, wherein a reset pressure spring is wound on the outer wall of the external threaded pipe in front of the supporting longitudinal rod;

the inner threaded pipe is in threaded connection with the rear end of the outer threaded pipe, first insections arranged in the front-back direction are uniformly distributed on the outer wall of the inner threaded pipe in the circumferential direction, and a driving groove is formed in the front end of the outer wall of the inner threaded pipe;

the driving rotating shaft comprises a driving shaft body which is rotatably arranged in the rear left hole, a driving turntable arranged behind the driving shaft body, and second insections which are circumferentially and uniformly distributed in front of the driving shaft body and are in transmission connection with the first insections;

the locking plug includes:

the linkage shifting fork comprises a sliding rod sleeve ring arranged on the left side of the inner cavity of the rectangular main shell, a shifting fork rod body inserted into the sliding rod sleeve ring along the front-back direction, and a shifting fork sleeve ring arranged at the rear end of the shifting fork rod body and inserted into the lower edge of the driving groove, wherein a driving rack is arranged at the upper end of the right side of the shifting fork rod body;

the sliding insertion cylinder comprises a fixed cylinder core fixed on the inner wall of the left side of the transmission auxiliary shell, a driven sleeve which is slidably inserted on the fixed cylinder core and is inserted into the right hole of the auxiliary shell, and a driven rack formed at the upper end of the driven sleeve;

the steering chain wheel is rotatably arranged at the upper half part of the inner cavity of the transmission auxiliary shell and at least comprises a pinion in transmission connection with the driving rack and a bull gear coaxially arranged above the pinion and in transmission connection with the driven rack;

the straightening inserting plate comprises:

the cover sealing mandrel is arranged on the right half part of the rear end face of the rectangular main shell along the longitudinal direction;

the built-in sleeve is slidably inserted on the cover mandrel and penetrates through the front right hole, the left side of the built-in sleeve is connected with the right side of the external threaded pipe through a spring stop lever, and the spring stop lever is stopped in front of the reset pressure spring;

the wiring side cavity is formed in the left end face of the rectangular main shell, a lead is arranged in the wiring side cavity, and a movable contact electrically connected with the lead is arranged in the left front of the wiring side cavity.

Further, the straightening inserting plate further comprises:

the external sleeve is slidably inserted on the internal sleeve, and a sleeve side hole for accommodating the insertion of the spring stop lever is formed in the rear half part of the left side of the external sleeve;

a transmission, comprising:

the first rotating wheel is rotatably arranged at the left rear part of the right part of the built-in sleeve positioned on the cover mandrel, and the first rotating wheel 44a is in transmission connection with the straightening inserting plate;

the second rotating wheel is rotatably arranged on the right front part of the right part of the built-in sleeve positioned on the cover mandrel, and the second rotating wheel 44b is in transmission connection with the inner wall of the external sleeve;

and the transmission rotating wheel is rotatably arranged on the right part of the built-in sleeve positioned on the sealing cover mandrel and is in transmission connection with the first rotating wheel and the second rotating wheel respectively.

Furthermore, a reinforcing rib connected with the rear end face of the rectangular main shell is further arranged on the right side of the lower end of the cover sealing mandrel.

The utility model provides a transmission line cable anti-drop wiring cassette which characterized in that: the novel magnetic field coupling device comprises a pre-buried cassette body, a connecting plug block arranged on the right front side of the cassette body, an anti-falling jack arranged on the left side of the connecting plug block and a straightening jack arranged at the rear end of the connecting plug block, wherein a fixed contact is arranged on the left side of the cassette body.

The invention has the beneficial effects that:

the anti-drop wiring plug for the power transmission line cable can be inserted into a cassette body and fixed and straightened:

through rotating the initiative carousel drives the similar motion of external screw thread pipe and internal thread pipe, the internal thread pipe drive the locking plug stretches out the anticreep jack internal fixation, the external screw thread pipe drive the aligning picture peg inserts assist the aligning in the aligning picture peg.

According to the anti-drop wiring plug for the power transmission line cable, the distance amplification effect in the front-back direction is realized under the combined action of the internal sleeve and the external sleeve of the straightening plugboard:

when built-in sleeve moved ahead along with the external screw thread pipe, transmission drove external sleeve for built-in sleeve moves ahead, promptly external sleeve moves ahead for the rectangle main casing distance far away be greater than the distance of advancing of external screw thread pipe, external sleeve and built-in telescopic effect have realized the enlargements of distance of advancing of external screw thread pipe, can reduce to a certain extent the length of arranging of external screw thread pipe, the final size of this device in front and back direction of gathering.

According to the anti-drop wiring plug for the power transmission line cable, the steering chain wheel achieves the distance amplification effect of the driven sleeve in the left and right directions:

the small gear of the steering chain wheel is driven by the driving rack to rotate, and the driven rack driven sleeve is driven by the large gear to move in the left-right direction; and since the circumference of the large gear is larger than that of the small gear, the moving distance of the driven sleeve in the left-right direction is larger than that of the driving rack in the front-back direction; this setting can be so that the flexible of initiative sleeve in the left and right sides orientation can be realized to the upward small distance of removal in the front and back direction of initiative rack, slip lantern ring, internal thread pipe, finally gathers the size of this device in the front and back orientation.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a top view of one embodiment of the connector plug.

Fig. 2 is a cross-sectional view of one embodiment of the connector plug.

Fig. 3 is a cross-sectional view of another embodiment of the wiring plug.

Fig. 4 is a cross-sectional view of another embodiment of the wiring plug.

Fig. 5 is a sectional view taken along line a-a of fig. 4.

Fig. 6 is a sectional view of one embodiment of the wiring cassette.

Fig. 7 is a schematic view showing a state in which the wiring plug is fitted to the wiring cassette.

FIG. 8 is a cross-sectional view of one embodiment of the diverting sprocket.

In the figure:

a. the cassette comprises a cassette body, a1. a connecting plug block, a2 an anti-falling jack, a a3. straightening jack and a4. a fixed contact;

1. the plug comprises a plug body, 11, a rectangular main shell, 11a, a rear left hole, 11b, a front right hole, 11c, a front left hole, 12, a transmission auxiliary shell and 12a, an auxiliary shell right hole;

2. the device comprises a driving device, 21, an external threaded pipe assembly, 21a, a supporting mandrel, 21b, a supporting longitudinal rod, 21c, an external threaded pipe, 21d, a driven slide hole, 21e, a reset pressure spring, 22, an internal threaded pipe, 22a, a first insection, 22b, a driving groove, 23, a driving rotating shaft, 23a, a driving shaft body, 23b, a driving turntable and 23c, a second insection;

3. the locking device comprises a locking plug, 31, a linkage shift fork, 31a, a sliding sleeve ring, 31b, a shift fork rod body, 31c, a shift fork sleeve ring, 31d, a driving rack, 32, a sliding insert cylinder, 32a, a fixed cylinder core, 32b, a driven sleeve, 32c, a driven rack and 33, a steering chain wheel;

4. the straightening inserting plate comprises 41 parts of a cover sealing core shaft, 42 parts of an internal sleeve, 42a parts of a spring stop lever, 43 parts of an external sleeve, 43a parts of a sleeve side hole, 44 parts of a transmission device, 44a parts of a first rotating wheel, 44b parts of a transmission rotating wheel and 44c parts of a second rotating wheel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

An anti-drop wiring plug for a power transmission line cable comprises a plug body 1, a driving device 2, a locking plug 3, a straightening inserting plate 4 and a wiring side cavity 5;

the plug body 1 includes:

the rectangular main shell 11 is hollow and rectangular, a rear left hole 11a is formed in the left side of the rear end face of the rectangular main shell 11, a front right hole 11b is formed in the right side of the front end face of the rectangular main shell 11, and a front left hole 11c is formed in the left side of the front end face of the rectangular main shell 11;

the transmission auxiliary shell 12 is arranged on the left side of the front end face of the rectangular main shell 11, the transmission auxiliary shell 12 is communicated with the front left hole 11c, and an auxiliary shell right hole 12a is formed in the right end face of the transmission auxiliary shell 12;

the driving device 2 is used for driving the locking plug 3 and the straightening inserting plate 4 to stretch, and the driving device 2 comprises:

the external thread pipe assembly 21 comprises a supporting mandrel 21a arranged in the rectangular main shell 11 along the front-back direction, a supporting longitudinal rod 21b arranged below the supporting mandrel 21a, an external thread pipe 21c slidably sleeved on the supporting mandrel 21a, and a driven slide hole 21d arranged at the front half part of the lower end of the external thread pipe 21c along the front-back direction and used for accommodating the supporting longitudinal rod 21b, wherein a reset pressure spring 21e is wound and connected on the outer wall of the external thread pipe 21c in front of the supporting longitudinal rod 21 b;

the outer wall of the inner threaded pipe 22 is circumferentially and uniformly provided with first insections 22a arranged along the front-back direction, and the front end of the outer wall of the inner threaded pipe 22 is provided with a driving groove 22 b;

the driving rotating shaft 23 comprises a driving shaft body 23a which is rotatably arranged in the rear left hole 11a, a driving turntable 23b which is arranged behind the driving shaft body 23a, and second insections 23c which are uniformly distributed in the front of the driving shaft body 23a in the circumferential direction and are in transmission connection with the first insections 22 a;

the locking plug 3 includes:

the linkage shifting fork 31 comprises a sliding rod lantern ring 31a arranged on the left side of the inner cavity of the rectangular main shell 11, a shifting fork rod body 31b inserted into the sliding rod lantern ring 31a along the front-back direction, and a shifting fork lantern ring 31c arranged at the rear end of the shifting fork rod body 31b and inserted into the lower edge of the driving groove 22b, wherein a driving rack 31d is arranged at the upper end of the right side of the shifting fork rod body 31 b;

a sliding insertion cylinder 32, which comprises a fixed cylinder core 32a fixed on the inner wall of the left side of the transmission auxiliary shell 12, a driven sleeve 32b inserted on the fixed cylinder core 32a in a sliding way and inserted into the auxiliary shell right hole 12a, and a driven rack 32c formed at the upper end of the driven sleeve 32 b;

the steering chain wheel 33 is rotatably arranged at the upper half part of the inner cavity of the transmission auxiliary shell 12, and the steering chain wheel 33 at least comprises a pinion gear in transmission connection with the driving rack 31d and a bull gear coaxially arranged above the pinion gear and in transmission connection with the driven rack 32 c;

the straightening insert plate 4 comprises:

the cover sealing mandrel 41 is arranged on the right half part of the rear end face of the rectangular main shell 11 along the longitudinal direction;

the built-in sleeve 42 is slidably inserted on the cover mandrel 41, the built-in sleeve 42 is arranged through the front right hole 11b, the left side of the built-in sleeve 42 is connected with the right side of the external thread pipe 21c through a spring stop rod 42a, and the spring stop rod 42a is stopped in front of the reset pressure spring 21 e;

the wiring side cavity 5 is arranged on the left end face of the rectangular main shell 1, a lead is arranged in the wiring side cavity 5, and a movable contact 51 electrically connected with the lead is arranged in front of the left side of the wiring side cavity 5.

As a further embodiment, the straightening insert plate 4 further comprises:

the external sleeve 43 is slidably inserted into the internal sleeve 42, and a sleeve side hole 43a for accommodating the spring stop rod 42a to be inserted is formed in the rear half part of the left side of the external sleeve 43;

still further, the front end of the external sleeve 43 is provided with a chamfer, and when the external sleeve 43 is not aligned with the straightening insertion hole a3, the chamfer can guide the external sleeve 43 to be inserted into the straightening insertion hole a3.

A transmission 44 comprising:

the first rotating wheel 44a is rotatably arranged at the left rear part of the right part of the cover sealing mandrel 41 of the built-in sleeve 42, and the first rotating wheel 44a is in transmission connection with the straightening inserting plate 41;

the second rotating wheel 44b is rotatably arranged at the right front part of the right part of the cover mandrel 41 of the internal sleeve 42, and the second rotating wheel 44b is in transmission connection with the inner wall of the external sleeve 43;

and the transmission rotating wheel 44c is rotatably arranged at the right part of the built-in sleeve 42 positioned on the cover mandrel 41, and the transmission rotating wheel 44c is in transmission connection with the first rotating wheel 44a and the second rotating wheel 44b respectively.

As a further embodiment, the first roller 44a, the second roller 44b and the transmission roller 44c are externally provided with anti-slip threads or teeth to ensure a strict transmission relationship. Still further, the straightening inserting plate 41 in transmission connection with the first rotating wheel 44a and the external sleeve 43 in transmission connection with the second rotating wheel 44b are also provided with corresponding anti-skid grains or teeth.

Further, a reinforcing rib 41a connected with the rear end face of the rectangular main shell 11 is further arranged on the right side of the lower end of the cover sealing mandrel 41.

Correspondingly, the anti-drop wiring cassette for the cables of the power transmission lines also comprises a cassette body a which is pre-embedded, a connecting plug block a1 arranged at the right front of the cassette body a, an anti-drop jack a2 arranged at the left side of the connecting plug block a1 and a straightening jack a3 arranged at the rear end of the connecting plug block a1, wherein a fixed contact a4 is arranged at the left side of the cassette body a.

As a further embodiment, the fixed contact a4 and the movable contact 51 are both metal sheets, and when the wiring plug is inserted into the anti-drop wiring cassette, the movable contact 51 is in contact connection with the fixed contact a4.

The anti-drop wiring method for the power transmission line cable comprises the following steps:

step 1, adjusting a wiring plug:

the driving turntable 23b is rotated in the forward direction to drive the driving shaft body 23a and the second gear 23c to rotate;

the second insection 23c acts on the first insection 22a to drive the internal threaded tube 22 to rotate relative to the external threaded tube 21c, and the internal threaded tube 22 and the external threaded tube 21c move closer to each other in the front-rear direction:

the first half of the movement:

the external thread tube 21c is tightly abutted against the front end of the inner wall of the rectangular main shell 11 due to the forward thrust action of the return compressed spring 21e on the spring stop lever 42a and the external thread tube 21 c;

at the moment, the internal threaded pipe 22 and the external threaded pipe 21c move close to each other in the front-rear direction, namely the internal threaded pipe 22 rotates and moves forwards until abutting against the rear part of the supporting longitudinal rod 21b, and meanwhile, the internal threaded pipe 22 and the driving groove 22b drive the shifting fork lantern ring 31c, the shifting fork rod body 31b and the driving rack 31d to move upwards;

the driving rack 31d goes upward to drive the pinion and the bull gear of the steering sprocket 33 to rotate clockwise, and finally drives the driven rack 32c and the sliding insertion cylinder 32 to retract leftwards;

the second half of the movement:

the internal thread tube 22 abuts against the rear of the supporting vertical rod 21b and cannot move upwards continuously, and at the moment, the movement that the internal thread tube 22 and the external thread tube 21c approach each other in the front-rear direction is represented by the downward movement of the external thread tube 21c and the spring stop rod 42a against the reset pressure spring 21 e;

the built-in sleeve 42 descends along the capping mandrel 41, and the first rotating wheel 44a rotates clockwise;

the first rotating wheel 44a drives the second rotating wheel 44b to rotate clockwise through the transmission rotating wheel 44 c;

the second rotating wheel 44b drives the outer sleeve 43 to move downwards relative to the inner sleeve 42;

the external sleeve 43 and the internal sleeve 42 are all retracted into the rectangular main shell 11;

step 2, inserting the cassette body a:

inserting the wiring plug forward into the cassette body a;

the movable contact 51 is in initial contact connection with the fixed contact a 4;

step 3, locking the wiring plug:

the driving turntable 23b rotates reversely to drive the driving shaft body 23a and the second gear 23c to rotate reversely;

the second insection 23c acts on the first insection 22a to drive the internal threaded tube 22 to rotate relative to the external threaded tube 21c, and the internal threaded tube 22 and the external threaded tube 21c move away from each other in the front-rear direction:

the first half of the movement:

due to the forward pushing force of the reset pressure spring 21e on the spring stop lever 42a and the external threaded tube 21c, the movement of the internal threaded tube 22 and the external threaded tube 21c away from each other in the forward and backward direction is represented by the upward movement of the external threaded tube 21c and the spring stop lever 42a until the external threaded tube 21c abuts against the front of the inner wall of the rectangular main shell 11, and in the process, the external sleeve 43 is inserted into the straightening insertion hole a3 along with the upward reset of the external sleeve 43;

the second half of the movement:

after the male screw tube 21c and the spring stopper 42a abut against the front side of the inner wall of the rectangular main housing 11, the movement of the female screw tube 22 and the male screw tube 21c away from each other in the front-rear direction is expressed as the downward movement of the female screw tube 22, and in this process, the driven rack 32c is inserted into the anti-release insertion hole a2 to complete the fixation along with the downward movement of the driving rack 31d and the rightward protrusion of the driven rack 32c.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.