A power transmission and transformation project line conveying device and conveying method

Abstract

The present application relates to the technical field of line conveying, and provides a power transmission and transformation engineering line conveying device, which comprises a cable reel and a pay-off rack, one side of the pay-off rack is provided with a support frame, the support frame is used for replacing manual support of power transmission lines between adjacent power poles, the inside of the support frame is provided with a limiting roller for limiting the power transmission lines, and the bottom of both ends of the support frame is provided with a base capable of being stacked. The present application can effectively reduce the manual input cost, guarantee the stable conveying of the power transmission lines between the adjacent power poles without manual support, conveniently stack and store the support equipment, greatly reduce the occupied space, facilitate carrying and transportation, further guarantee the stable state of the root position during the pay-off of the power transmission lines, effectively prevent the left and right swinging, accurately control the rotation state of the cable reel during the conveying operation, and effectively prevent the overpay-off of the lines.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of line conveying, more particularly to a power transmission and transformation engineering line conveying device and conveying method. BACKGROUND

[0002] Power transmission and transformation engineering is the general term of power transmission line construction and transformer installation engineering, the higher the voltage level of power transmission and transformation engineering is, the more power is transmitted, and the longer the transmission distance is. The power transmission and transformation engineering with voltage exceeding 330,000 volts is called "ultra-high voltage power transmission and transformation", in which the line cable needs to be arranged and laid during the construction of power transmission line, so that a line conveying device needs to be used. During the erection of the line, due to the influence of geographical position, a high-voltage power transmission line generally faces villages, rivers, highways, railways, gorges and farmland topography, and needs to be erected in the air for operation.

[0003] At present, when the power transmission line is erected in the air, the ground laying device needs to manually pull the power transmission line to the predetermined length and then hang it on one side of the power pole. When the length between adjacent power poles is long, multiple people need to cooperate to support the cable in the middle area. This method undoubtedly occupies a large amount of manpower, and needs to be careful during operation to prevent the power transmission line from swinging greatly, thereby reducing the erection efficiency and prolonging the construction period. The practical performance and work efficiency need to be improved.

[0004] To solve the above problems, the present application provides a power transmission and transformation engineering line conveying device and conveying method. SUMMARY

[0005] The present application aims to provide a power transmission and transformation engineering line conveying device and conveying method to solve the problems in the prior art.

[0006] The object of the present application can be achieved by the following technical solutions:

[0007] The utility model provides a kind of power transmission project line conveying device, including cable reel and pay-off rack, the side of the pay-off rack is provided with support frame, the support frame is used to replace artificial support between adjacent electric pole transmission line, the inside of the support frame is provided with limiting roller for limiting transmission line, the bottom of the both ends of the support frame is provided with the base that can be superimposed, the inside of the one end of the base and the bottom of the both ends of pay-off rack are all opened with positioning slot, the other end of the base is provided with the convex plate for being slidably connected with positioning slot, the inside of the support frame is further provided with extension frame for increasing support range, the both ends of the extension frame are provided with support sleeve for keeping transmission line horizontal state and conveying, the inside of the both ends of the support frame is further provided with side rod for accommodating extension frame, the above of the cable reel is provided with positioning sleeve for forming positioning to pay-off position of transmission line, the both ends of the positioning sleeve are provided with protruding boss, the positioning sleeve is used to prevent transmission line from left and right swing when conveying, the above of the cable reel is further provided with limiting rod and bidirectional transmission screw rod, the bidirectional transmission screw rod is located at the lower end of limiting rod, the inside of the upper end of the cable reel is provided with blocking sleeve for blocking cable reel to make it automatically stop rotating, the inside of the upper end of the cable reel is slidably installed with retaining frame, the both ends of the limiting rod and bidirectional transmission screw rod are all installed to the inside of retaining frame, the inside of the retaining frame is further provided with adapter for moving blocking sleeve, the upper end between the limiting rod and the adapter is slidably connected, the adjacent upper end position between the adapter and the bidirectional transmission screw rod is screw-connected.

[0008] The both ends of the extension frame are fixedly installed with the sleeve, the upper end of the extension frame is provided with the clamping plate for cooperating with the support frame to control the placement position of the support sleeve, the both ends of the side rod are recessed structures for accommodating the extension frame and the support sleeve in transverse state, the inside of the upper end of the support frame is provided with hole groove structure for the rod body rotating connection of the bottom of the clamping plate, the upper end of the hole groove structure is square groove structure, and the extension frame can be fixed in vertical and horizontal state by cooperating with the clamping plate.

[0009] Further, one end of the sleeve is provided with limiting slot, and one end of the support sleeve is provided with stepped shaft slidably connected with the limiting slot.

[0010] Further, the inside of the convex plate is provided with taper pin rod for fixing the support frame, and the inside of the convex plate is further provided with support for accommodating the taper pin rod.

[0011] Further, the support is double-layer structure, and the inside of the upper plate body mechanism of the support is provided with thread hole groove structure for screwing the taper pin rod.

[0012] Further, the inside of the boss is provided with two positioning rollers for clamping transmission line, and the inverted "V" structure of the positioning roller can adapt to transmission lines of various models.

[0013] Further, the inside of the convex seat is provided with elastic telescopic columns for driving the positioning rollers to move inward.

[0014] Further, one end of the elastic telescopic column is provided with a ring sleeve mechanism for rotating connection with the two ends of the positioning roller.

[0015] Further, the inside of the positioning sleeve is provided with a buffer belt for decomposing the swing force of the power transmission line.

[0016] A power transmission and transformation project line conveying method includes four steps S1, S2, S3 and S4:

[0017] S1: First, take out the support frame and place it in the predetermined position between the adjacent power poles, rotate the conical pin shaft to make its lower end sink into the soil to fix the support frame, then pull up the clamping plate and rotate it to the perpendicular state intersecting with the support frame. At this time, the power transmission line can be directly arranged in the inside of the support sleeve. Under the action of the gravity of the power transmission line, the support sleeve automatically rotates to the opening upward, which can cooperate with the clamp sleeve to form the double effect of clamping and supporting the power transmission line. By cooperating with two opposite support sleeves, the power transmission line conveying and laying can be fixed, which can keep the power transmission line in a stable conveying state and avoid the situation of sagging and swinging;

[0018] S2: When the power transmission line conveying operation is completed, rotate the conical pin shaft to move it up and store it in the inside of the support seat, then adjust the extension frame back to the parallel state with the support frame. At this time, the extension frame, clamp sleeve and support sleeve are stored in the recessed area at both ends of the side rod. Further, the convex plate can be directly arranged in the inside of the positioning groove, which can be stacked to make multiple support frames stacked on one side of the cable reel to reduce the occupied space and facilitate carrying and transportation.

[0019] S3: After installing the retaining frame on the top of the rotating shaft fixed frame on the upper end of the cable reel jack, the positioning sleeve can be moved up while the cable reel is moved up. Then, the end of the power transmission line is arranged in the inside of the adjacent positioning roller. At this time, the two positioning rollers are driven by the elastic telescopic column to clamp the power transmission line inward, which limits the swing force during laying. Then, the buffer belt covers the outside of the power transmission line and absorbs the swing force, which can stably convey the power transmission line outward, increase the stable conveying state of the power transmission line in the air, and improve the work efficiency of the laying operation.

[0020] S4: After installing the bidirectional transmission screw rod adjacent to the upper end position of the holder, the adjacent adapter part can be moved by the external motor, and the upper end of the adapter part is limited by the limiting rod to form a sliding connection, and then the adapter part can move inward in parallel, and the blocking sleeve can be brought into abutment against the outer surface of the cable drum, so that the friction resistance of the cable drum is increased to stop rotation when the cable laying is completed or needs to be paused, thereby avoiding the adverse effects of excessive cable laying and ensuring the accuracy of the cable laying distance.

[0021] The beneficial effects of the present application are:

[0022] 1. By setting the support frame on one side of the cable laying frame, the support frame can be fixed between adjacent power poles by the taper pin rod during cable laying operation, and then the extension frame is unfolded to automatically rotate the support sleeve so that the opening faces upward, thereby supporting the power transmission line, and the extension distance of the extension frame increases the support range of the power transmission line, preventing the power transmission line from falling due to excessive suspended distance and hindering the outward laying of the power transmission line. In addition, the two opposite support sleeves can limit the direction of the power transmission line to prevent swinging due to suspension, making the cable laying operation easier to operate and improving work efficiency.

[0023] 2. By setting the positioning slot on the bottom of the base and the cable laying frame, the used support frame can be directly recycled. First, the taper pin rod is recycled into the inside of the base, and then the lug plate is inserted into the inside of the positioning slot to form a stack, so that multiple support frames can be stored on one side of the cable drum, reducing the occupied space and making transportation and carrying more convenient for power transmission line conveying operation.

[0024] 3. By installing the holder on the upper end of the cable drum shaft fixing frame, the positioning sleeve can always be located above the cable drum, and then the power transmission line is inserted into the inside, and the positioning roller is used to form clamping, and the buffer belt can absorb the swinging force of the power transmission line to stabilize the output and ensure the stability of the cable laying operation, which can effectively avoid the swinging of the power transmission line affecting the normal conveying state of the wire pole pulley.

[0025] 4. By adding a bidirectional transmission screw rod inside the holder, the adjacent blocking sleeve can be moved inward, and then the cable drum is blocked when the cable is laid to the predetermined position to prevent continuous rotation of the cable drum and excessive power transmission line conveying, ensuring the accuracy of the power line conveying of the equipment and the practical performance during use. BRIEF DESCRIPTION OF DRAWINGS

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the structure of adjacent support frames in their unfolded state;

[0029] Figure 3 for Figure 1 A schematic diagram of the disassembled structure of the extension frame and support frame rods in the middle;

[0030] Figure 4 for Figure 2 A schematic diagram of the disassembled structure of the support sleeve and jacket;

[0031] Figure 5 for Figure 1 A three-dimensional structural diagram of the adjacent bases and wire feeding frame in disassembled form;

[0032] Figure 6 for Figure 1 A schematic diagram of the planar structure of the connection between adjacent bases and the wire feeding frame;

[0033] Figure 7 for Figure 1 A schematic diagram of the connection between the positioning sleeve and the pay-off frame;

[0034] Figure 8 for Figure 1 A schematic diagram of the internal structure of the positioning sleeve in the middle;

[0035] Figure 9 for Figure 1 A schematic diagram of the connection between the blocking sleeve and the limiting rod in the middle;

[0036] The attached diagram lists the components represented by each number as follows:

[0037] In the diagram: 1. Cable reel; 2. Cable feeder; 3. Support frame; 4. Limiting roller; 5. Base; 6. Positioning groove; 7. Side rod; 8. Positioning sleeve; 9. Boss; 10. Limiting rod; 11. Bidirectional transmission screw; 12. Blocking sleeve; 13. Retainer; 14. Adapter; 15. Extension frame; 16. Jacket; 17. Support sleeve; 18. Boss; 19. Clamping plate; 20. Limiting groove; 21. Stepped shaft; 22. Tapered pin; 23. Support; 24. Positioning roller; 25. Elastic telescopic column; 26. Buffer belt. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with specific examples. It should be understood that the specific examples described herein are only used to explain the present application and not used to limit the present application. Based on the examples in the present application, all other examples obtained by those skilled in the art without creative effort shall fall within the scope of the present application.

[0039] Please refer to Figures 1-2 The power transmission device for power transmission and transformation project comprises a cable reel 1 and a pay-off rack 2, one side of the pay-off rack 2 is provided with a support frame 3, the support frame 3 is used for replacing manual support of the power transmission line between adjacent power poles, the inside of the support frame 3 is provided with a limiting roller 4 for limiting the power transmission line, the bottom of both ends of the support frame 3 is provided with a base 5 which can be stacked, the inside of one end of the base 5 and the bottom of both ends of the pay-off rack 2 are provided with a positioning groove 6, the other end of the base 5 is provided with a convex plate 18 which is used for sliding connection with the positioning groove 6, the inside of the support frame 3 is further provided with an extension frame 15 for increasing the supporting range, both ends of the extension frame 15 are provided with a supporting sleeve 17 for keeping the power transmission line in a horizontal state for transmission, the inside of both ends of the support frame 3 is further provided with a side rod 7 for accommodating the extension frame 15, the upper side of the cable reel 1 is provided with a positioning sleeve 8 for positioning the pay-off position of the power transmission line, both ends of the positioning sleeve 8 are provided with convex seats 9, the positioning sleeve 8 is used for preventing the power transmission line from swinging left and right during transmission, the upper side of the cable reel 1 is further provided with a limiting rod 10 and a bidirectional transmission screw rod 11, the bidirectional transmission screw rod 11 is located at the lower end of the limiting rod 10, the inside of the upper end of the cable reel 1 is provided with a blocking sleeve 12 for blocking the cable reel 1 to make it automatically stop rotating, a retaining frame 13 is slidingly installed at the inside of the upper end of the cable reel 1, both ends of the limiting rod 10 and the bidirectional transmission screw rod 11 are installed at the inside of the retaining frame 13, the inside of the retaining frame 13 is further provided with a switching part 14 for driving the blocking sleeve 12 to move, the upper end of the switching part 14 is in sliding connection with the limiting rod 10, the position adjacent to the upper end of the switching part 14 is in screw connection with the bidirectional transmission screw rod 11, both sides of the convex seat 9 at one end of the positioning sleeve 8 are provided with an axle seat mechanism for rotary connection with the limiting rod 10, through which the positioning sleeve 8 can automatically adapt to the up-and-down inclination angle of the power transmission line during the pay-off operation, so as to prevent the jamming during the transmission operation.

[0040] Please continue to refer to Figures 2-3The two ends of the extension frame 15 are fixedly provided with clamping sleeves 16, the upper end of the extension frame 15 is provided with a clamping plate 19 for cooperating with the support frame 3 to control the placement position of the support sleeve 17, the two ends of the side rod 7 are recessed structures for accommodating the extension frame 15 and the support sleeve 17 in the transverse state, the upper end of the inside of the support frame 3 is provided with a hole groove structure for the rotating connection of the bottom rod body of the clamping plate 19, and the upper end of the hole groove structure is a square groove structure, which can cooperate with the clamping plate 19 to fix the extension frame 15 in the vertical and transverse states.

[0041] Please continue to refer to Figure 4 One end of the clamping sleeve 16 is provided with a limiting groove 20, one end of the support sleeve 17 is provided with a stepped shaft 21 in sliding connection with the limiting groove 20, and the two opposite stepped shafts 21 can make the opening of the support sleeve 17 face upward, thereby guaranteeing the stability during power transmission.

[0042] Please continue to refer to Figures 5-6 The inside of the convex plate 18 is provided with a tapered pin rod 22 for fixing the support frame 3, and the inside of the convex plate 18 is also provided with a support 23 for accommodating the tapered pin rod 22, and the outside of the upper end of the tapered pin rod 22 is a threaded rod body mechanism.

[0043] Please continue to refer to Figures 5-6 The support 23 is a double-layer structure, and the inside of the upper plate body mechanism of the support 23 is provided with a threaded hole groove structure for screwing the tapered pin rod 22.

[0044] Please continue to refer to Figures 7-8 The inside of the convex seat 9 is provided with two positioning rollers 24 for clamping the power transmission line, the inverted “V”-shaped structure of the positioning roller 24 can adapt to power transmission lines of various models, and the circumferential section of the positioning roller 24 is an obtuse angle structure inverted “V”-shaped structure.

[0045] Please continue to refer to Figure 8 Both sides of the inside of the convex seat 9 are provided with elastic telescopic columns 25 for driving the positioning roller 24 to move inward, and the elastic telescopic columns 25 are also used to prevent the formation of pre-damping effect.

[0046] Please continue to refer to Figure 8 One end of the elastic telescopic column 25 is provided with a ring sleeve mechanism for rotating connection with both ends of the positioning roller 24.

[0047] Please continue to refer to Figure 8 The inside of the positioning sleeve 8 is provided with a buffer belt 26 for decomposing the swing force of the power transmission line, and the inside of the buffer belt 26 is filled with buffer particles for decomposing external force.

[0048] Please continue to refer to Figures 1-9 A power transmission and transformation engineering line conveying method, comprising four steps of S1, S2, S3 and S4:

[0049] S1: First, the support frame 3 is taken out and placed in a predetermined position in the area between adjacent power poles, the conical pin shaft 22 is rotated to sink its lower end into the soil to fix the support frame 3, then the clamping plate 19 is pulled up and rotated to a perpendicular state intersecting the support frame 3, at this time the power transmission line can be directly inserted into the inside of the support sleeve 17, under the action of the gravity of the power transmission line, the support sleeve 17 automatically rotates to the opening upward, which can cooperate with the clamp sleeve 16 to form a double effect of clamping and supporting the power transmission line, and in cooperation with the two opposite support sleeves 17, the power transmission line can be fixed, which can keep the power transmission line in a stable conveying state and avoid sagging;

[0050] S2: When the power transmission line conveying operation is completed, the conical pin shaft 22 is rotated to move upward and is accommodated in the inside of the support 23, then the extension frame 15 is adjusted back to a parallel state with the support frame 3, at this time the extension frame 15, the clamp sleeve 16 and the support sleeve 17 are accommodated in the recessed area at both ends of the side rod 7, further the protruding plate 18 is directly inserted into the inside of the positioning groove 6, which can be stacked to make multiple support frames 3, and the stacked support frames 3 are accommodated on one side of the cable reel 1 to reduce the occupied space and facilitate carrying and transportation;

[0051] S3: After the retaining frame 13 is installed on the top of the rotating shaft fixing frame at the upper end of the cable reel 1, the positioning sleeve 8 can be moved upward when the cable reel 1 is moved upward, then the end of the power transmission line is inserted into the inside of the adjacent positioning roller 24, at this time the upper and lower positioning rollers 24 are simultaneously clamped inward by the elastic expansion column 25 to form a limiting position to reduce the swinging force during unwinding, then the buffer belt 26 forms a covering on the outside of the power transmission line to absorb the swinging force, so that the power transmission line can be stably conveyed outward, which increases the stable conveying state of the aerial power transmission line and improves the work efficiency of the laying operation;

[0052] S4: After the bidirectional transmission screw 11 is installed on the inside of the retaining frame 13 adjacent to the upper end position, the adjacent adapter 14 can be moved by the external motor, at this time the upper end of the adapter 14 is limited by the limiting rod 10 to form a sliding connection, then the adapter 14 can move parallel inward and drive the blocking sleeve 12 to resist the outer surface of the cable reel 1, which can increase the friction resistance of the cable reel 1 to stop rotation when the unwinding is completed or needs to be paused, avoid the adverse effects of excessive unwinding, and ensure the accuracy of the unwinding distance to avoid waste.

[0053] It can be understood that the application can effectively reduce the artificial input cost, without artificial support, the stable transmission of the transmission line between the adjacent poles can be guaranteed, secondly, the supporting device can be conveniently stacked and stored, the occupied space is greatly reduced, and the use of transportation and carrying is facilitated, further, the stability of the root position of the transmission line during unwinding can be ensured in real time, the left and right swinging situation can be effectively prevented, finally, the rotation state of the cable reel 1 can be accurately controlled during the transmission operation, and the situation of over-unwinding can be effectively prevented.

[0054] The application can be fixed between adjacent poles by the taper pin rod 22 arranged in the support seat 23 of one end of the base 5, and the support frame 3 can be directly rotated and unfolded to form a perpendicular cross state with the support frame 3 by the clamping plate 19 arranged on the upper end of the extension frame 15, at this time, the support sleeve 17 on one side of the clamping sleeve 16 can be automatically rotated to make the opening upward under the gravity of the stepped shaft 21 at one end and the gravity of the transmission line, thereby replacing the artificial support for the transmission line and preventing the transmission direction from being deviated, further, the extension distance of the extension frame 15 can increase the support range of the transmission line, so that the part of the transmission line in the region adjacent to the support frame 3 remains stable transmission, prevents the transmission line from being suspended for too long to drop and hinder the external transmission of the transmission line, secondly, the two support sleeves 17 on both sides of the support frame 3 can also limit the transmission direction of the transmission line, prevent the transmission line from swinging due to suspension, make the unwinding operation more easy to operate and improve the work efficiency; further, the support frame 3 used can be directly recycled by opening the positioning groove 6 on the bottom side of the base 5 and the bottom of the unwinding frame 2, first, the taper pin rod 22 is rotated upward to move out of the soil to release the limitation of the support frame 3, so that it is recycled to the inside of the support seat 23, and then the lug plate 18 on one side of the base 5 can be arranged in the positioning groove 6 to form a stack, after the treatment, the multiple support frames 3 can be stored on one side of the cable reel 1, so that the occupied space is reduced, the use of transportation and carrying is more convenient, and the number of support frames 3 used can be adjusted according to the site conditions during the laying operation of the transmission line, which is beneficial to the transmission operation of the transmission line.

[0055] The application can make the positioning sleeve 8 move upward together with the cable reel 1 under the action of the jack of the cable reel 1 after the holder 13 is installed on the upper end of the rotating shaft fixing frame of the cable reel 1, and then the positioning sleeve 8 is always located above the cable reel 1, and then the power transmission line is arranged in the inside, the positioning rollers 24 arranged in the inside of the convex base 9 and the elastic telescopic columns 25 arranged on both sides of the inside of the convex base 9 can apply extrusion force to the positioning rollers 24, so that the positioning rollers 24 on the upper and lower positions simultaneously clamp the power transmission line inward, and then the swing force of the power transmission line can be absorbed by the buffer belt 26 arranged in the inside of the positioning sleeve 8, so that the stable output of the power transmission line can guarantee the stability of the pay-off operation, and the left and right swing of the power transmission line due to different winding positions outside the cable reel 1 can be effectively avoided, and the normal conveying state of the wire pole pulley is prevented from being affected; further, the bidirectional transmission screw 11 is additionally arranged on the inside of the adjacent upper end position of the holder 13, so that the adjacent switching part 14 can be driven by the external motor on one side of the holder 13 to move inward under the fixed movement state of the limiting rod 10, and then the blocking sleeve 12 on the inside of the lower end of the switching part 14 can be driven to move inward, so that the cable reel 1 can be blocked when paying off to the predetermined position, and the continuous rotation of the cable reel 1 to cause the power transmission line to be conveyed too much is prevented, and the wire transmission accuracy of the equipment and the practicality during use are guaranteed.

[0056] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0057] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A power transmission line installation device comprising a cable drum (1) and a pay-off stand (2), characterized in that: The side of the pay-off rack (2) is provided with a support frame (3), which is used to replace the artificial support of the power transmission line between adjacent power poles. The inside of the support frame (3) is provided with a limiting roller (4) for limiting the power transmission line. The bottom of the two ends of the support frame (3) is provided with a base (5) that can be stacked. The inside of one end of the base (5) and the bottom of the two ends of the pay-off rack (2) are both provided with a positioning groove (6). The other end of the base (5) is provided with a protruding plate (18) for sliding connection with the positioning groove (6). The inside of the support frame (3) is also provided with an extension frame (15) for increasing the supporting range. The two ends of the extension frame (15) are provided with a support sleeve (17) for keeping the power transmission line in a horizontal state for transmission. The inside of the two ends of the support frame (3) is also provided with a side rod (7) for accommodating the extension frame (15). The upper side of the cable reel (1) is provided with a positioning sleeve (8) for positioning the pay-off position of the power transmission line. The two ends of the positioning sleeve (8) are provided with protruding bosses (9). The positioning sleeve (8) is used to prevent the power transmission line from swinging left and right during transmission. The upper side of the cable reel (1) is also provided with a limiting rod (10) and a bidirectional transmission screw rod (11). The bidirectional transmission screw rod (11) is located at the lower end of the limiting rod (10). The upper end of the cable reel (1) is provided with a blocking sleeve (12) for blocking the cable reel (1) to automatically stop rotating. The upper end of the cable reel (1) is slidingly installed with a retaining frame (13). The two ends of the limiting rod (10) and the bidirectional transmission screw rod (11) are both installed on the inside of the retaining frame (13). The inside of the retaining frame (13) is also provided with a transfer part (14) for moving the blocking sleeve (12). The upper end of the transfer part (14) is slidingly connected with the limiting rod (10). The adjacent upper end position of the transfer part (14) is screw-connected with the bidirectional transmission screw rod (11). The two ends of the extension frame (15) are fixedly installed with a clamping sleeve (16). The upper end of the extension frame (15) is provided with a clamping plate (19) for cooperating with the support frame (3) to control the placement position of the support sleeve (17). The recessed structure of the two ends of the side rod (7) is used to accommodate the extension frame (15) and the support sleeve (17) in the transverse state. The inside of the upper end of the support frame (3) is provided with a hole groove structure for rotating connection of the bottom rod of the clamping plate (19). The upper end of the hole groove structure is a square groove structure. The clamping plate (19) can be used to fix the extension frame (15) in vertical and horizontal states.

2. A power transmission line transmission device of a power transmission project according to claim 1, characterized in that: One end of the clamping sleeve (16) is provided with a limiting groove (20). One end of the support sleeve (17) is provided with a stepped shaft (21) slidingly connected with the limiting groove (20).

3. A power transmission line transmission device of a power transmission project according to claim 1, characterized in that: The inside of the protruding plate (18) is provided with a tapered pin rod (22) for fixing the support frame (3). The inside of the protruding plate (18) is also provided with a support seat (23) for accommodating the tapered pin rod (22).

4. A power transmission line transmission device according to claim 3, wherein: The support (23) is double-layer structure, the upper layer of the support (23) is provided with a threaded hole groove structure for screwing the conical pin (22).

5. A power transmission line transmission device of a power transmission project according to claim 1, characterized in that: The convex seat (9) is provided with two positioning rollers (24) for clamping the power transmission line inside, and the inverted "V" structure of the positioning roller (24) can adapt to various models of power transmission lines.

6. A power transmission line transmission device of a power transmission project according to claim 1, characterized in that: The convex seat (9) is provided with an elastic telescopic column (25) on both sides of the inside for driving the positioning roller (24) to move inward.

7. A power transmission line transmission device according to claim 6, characterized in that: One end of the elastic telescopic column (25) is provided with a ring sleeve mechanism for rotating connection with both ends of the positioning roller (24).

8. A power transmission line transmission device of a power transmission project according to claim 1, characterized in that: The inside of the positioning sleeve (8) is provided with a buffer belt (26) for decomposing the swing force of the power transmission line.

9. The transmission method of the power transmission device according to any one of claims 1-8, comprising four steps S1, S2, S3 and S4, characterized in that: S1: first, the support frame (3) is taken out and placed in the predetermined position between the adjacent power poles, the conical pin (22) is rotated to make the lower end sink into the soil to fix the support frame (3), then the clamping plate (19) is pulled up and rotated to the perpendicular state with the support frame (3), at this time the power transmission line can be directly arranged in the inside of the support sleeve (17), under the action of the gravity of the power transmission line, the support sleeve (17) is automatically rotated to the opening upward, which can cooperate with the clamping sleeve (16) to form the double effect of clamping and supporting the power transmission line, by cooperating with two opposite support sleeves (17), the power transmission line can be fixed, which can keep the power transmission line in stable transmission state and avoid the situation of sagging swing; S2: when the power transmission line transmission operation is completed, the conical pin (22) is rotated to move upward and is accommodated in the inside of the support (23), then the extension frame (15) is adjusted back to the parallel state with the support frame (3), at this time the extension frame (15), the clamping sleeve (16) and the support sleeve (17) are accommodated in the recessed area at both ends of the side rod (7), the convex plate (18) is directly arranged in the inside of the positioning groove (6), which can be stacked to stack multiple support frames (3) on one side of the cable reel (1) to reduce the occupied space and facilitate carrying and transportation; S3: after the retaining frame (13) is installed on the top of the rotating shaft fixing frame on the upper end of the cable reel (1), the positioning sleeve (8) can be driven to move upward when the cable reel (1) is driven to move upward, then the end of the power transmission line is arranged in the inside of the adjacent positioning roller (24), at this time the two positioning rollers (24) are driven to clamp the power transmission line inward by the elastic telescopic column (25), which can limit the swing force when the power transmission line is laid, then the buffer belt (26) can form a coating on the outside of the power transmission line and absorb the swing force, which can stably transmit the power transmission line outward, increase the stable transmission state of the power transmission line in the air, and improve the work efficiency of the laying operation. S4: After the installation of the bidirectional transmission screw (11) on the inner side of the retainer (13) adjacent to the upper end position, the adjacent adapter (14) can be driven to move by an external motor. At this time, the upper end of the adapter (14) is limited by the limiting rod (10) to form a sliding connection, and then the adapter (14) can move inward in parallel, and drive the blocking sleeve (12) to resist the outer surface of the cable drum (1). When the laying operation is completed and needs to be paused, the friction resistance of the cable drum (1) can be increased to stop rotating, avoiding the adverse effects of excessive laying and ensuring the accuracy of the laying distance to avoid waste.

Images