CN211545507U - Auxiliary device is used in electric power engineering construction - Google Patents

Auxiliary device is used in electric power engineering construction Download PDF

Info

Publication number
CN211545507U
CN211545507U CN202020004769.1U CN202020004769U CN211545507U CN 211545507 U CN211545507 U CN 211545507U CN 202020004769 U CN202020004769 U CN 202020004769U CN 211545507 U CN211545507 U CN 211545507U
Authority
CN
China
Prior art keywords
wall
plate
rotating shaft
arc
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202020004769.1U
Other languages
Chinese (zh)
Inventor
解辉
张少蒙
梁会宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Kaiqiang Construction And Installation Engineering Co ltd
Original Assignee
Hebei Kaiqiang Construction And Installation Engineering Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Kaiqiang Construction And Installation Engineering Co ltd filed Critical Hebei Kaiqiang Construction And Installation Engineering Co ltd
Priority to CN202020004769.1U priority Critical patent/CN211545507U/en
Application granted granted Critical
Publication of CN211545507U publication Critical patent/CN211545507U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The utility model relates to an auxiliary device for electric power engineering construction, which belongs to the technical field of electric power engineering construction equipment and comprises a base, wherein the upper surface of the base is provided with a first fixed plate and a second fixed plate, a rotating shaft is arranged between the first fixed plate and the second fixed plate, the outer wall of the rotating shaft is provided with a winding coil, the inner side wall of the first fixed plate is fixedly provided with a motor, the motor is horizontally arranged, the motor is provided with an output shaft, a first clamping plate is arranged between the output shaft and the rotating shaft, the outer wall of the first clamping plate is fixedly connected with the output shaft, the central line of the first clamping plate is superposed with the central line of the output shaft, a connecting bolt is arranged between the first clamping plate and the rotating shaft, the outer wall of the rotating shaft is provided with a chute, the inner wall of the winding coil is provided with a slide block, the working efficiency of the working personnel is improved.

Description

Auxiliary device is used in electric power engineering construction
Technical Field
The utility model belongs to the technical field of the technique of electric power engineering construction equipment and specifically relates to an auxiliary device is used in electric power engineering construction.
Background
Electric power is energy using electric energy as power, and transmission, distribution and utilization of electric energy constitute the overall functionality of an electric power system, and transmission of electricity is an important embodiment of the superiority of electric energy utilization.
The existing Chinese patent with reference to publication number CN209161196U discloses a cable winding device, which comprises a base, wherein a first fixing plate and a second fixing plate are arranged on two sides of the base, a rotating shaft is arranged between the first fixing plate and the second fixing plate and is rotatably connected with the fixing plates, a winding coil is fixedly arranged on the circumferential outer wall of the rotating shaft, a motor is fixedly arranged on the inner side wall of the fixing plate, the motor comprises an output shaft, and the output shaft drives the rotating shaft to rotate.
The above prior art solutions have the following drawbacks: after the winding coil is wound, if the winding coil needs to be replaced, the rotating shaft in the winding device needs to be detached from the fixing plate, the connection between the motor and the rotating shaft is disconnected, and then the winding coil is detached from the rotating shaft, so that the replacement of the winding coil is difficult, and the workload of workers is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an auxiliary device is used in electric power engineering construction reaches the coil and changes portably, improves staff work efficiency's effect.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a base, a first fixing plate and a second fixing plate are arranged on the upper surface of the base, the first fixing plate and the second fixing plate are symmetrically arranged, the first fixing plate is fixedly connected with the base, a rotating shaft is arranged between the first fixing plate and the second fixing plate, a winding coil is arranged on the outer wall of the rotating shaft and comprises a winding shaft and a winding baffle, a motor is arranged between the first fixing plate and the rotating shaft, the motor is provided with an output shaft, a first clamping plate is arranged between the output shaft and the rotating shaft, the first clamping plate is horizontally arranged and is in a U-shaped plate structure, the outer wall of the first clamping plate is fixedly connected with the output shaft, the central line of the first clamping plate is superposed with the central line of the output shaft, the inner wall of the first clamping plate is abutted against the outer wall of the rotating shaft, a connecting bolt is arranged between the first clamping plate and, the spool cover is established at the pivot outer wall, spout and slider outer wall butt, and first splint one end is kept away from in the pivot rotates with the second fixed plate to be connected, is provided with the carousel between second fixed plate lower surface and the base, and the rotation axis of carousel rotates and connects second fixed plate and base.
By adopting the technical scheme, the connecting bolt is in threaded connection with the first clamping plate and the rotating shaft, the rotating shaft and the first clamping plate can be conveniently detached, the rotating disc arranged below the second fixing plate can drive the second fixing plate to rotate, the rotating shaft fixed on the second fixing plate and the winding coil fixed on the rotating shaft can rotate around the central axis of the rotating disc, in the rotating process of the rotating shaft, the sliding groove on the rotating shaft is matched with the sliding block of the winding shaft for use, so that the relative rotation between the rotating shaft and the winding coil can be prevented, the cable can be ensured to be smoothly wound on the winding coil, the motor drives the rotating shaft to rotate to complete the winding, the winding coil is rotated after the connecting bolt is taken down after the winding is completed, the rotating shaft rotates around the central line of the second fixing plate, because the winding coil is sleeved on the outer wall of the rotating shaft, therefore, the winding wheel can be taken down conveniently, the winding wheel is convenient to replace, the workload of workers can be reduced, and the working efficiency is improved.
The utility model discloses further set up to: the outer side wall of the winding baffle is fixedly provided with a third arc-shaped plate, the third arc-shaped plate is abutted against the outer wall of the rotating shaft, a first bolt is arranged between the third arc-shaped plate and the rotating shaft, and the first bolt is in threaded connection with the third arc-shaped plate and the rotating shaft.
Through adopting above-mentioned technical scheme, the third arc uses with the cooperation of first bolt can fix the lateral position between coil and the pivot, prevents that the coil from sliding in the pivot, guarantees that the winding that the cable can be smooth is on the coil, has guaranteed winding speed, takes off for making things convenient for the coil and provides the guarantee, has improved work efficiency.
The utility model discloses further set up to: the pivot includes circle axle and rectangle axle, circle axle and rectangle axle fixed connection, rectangle off-axial wall and first splint inner wall butt, and the upper surface level of rectangle axle sets up, the central line collineation of the central line of rectangle axle and circle axle.
Through adopting above-mentioned technical scheme, the area of contact of pivot and first splint has been increased to the rectangular shaft, and the stability that pivot and first splint are connected has been improved to fixed first splint and pivot that connecting bolt can be better, has prevented that the accident from taking place to reduce staff's work load, has improved work efficiency.
The utility model discloses further set up to: the outer wall cover of one end of the round shaft close to the first clamping plate is provided with a shaft sleeve, the inner wall of the shaft sleeve abuts against the rotating shaft, the outer wall of the shaft sleeve is fixedly provided with a supporting rod, the supporting rod is vertically arranged, the bottom end of the supporting rod is fixedly provided with a straight plate, a second bolt is arranged between the straight plate and the base, and the second bolt is in threaded connection with the straight plate and the base.
Through adopting above-mentioned technical scheme, the setting up of axle sleeve and bracing piece has played the supporting role to the countershaft, has reduced the pressure of coil to the output shaft, has guaranteed motor moving stability.
The utility model discloses further set up to: the wire winding baffle inside wall is provided with the threading pole, the through wires hole has been seted up on the threading pole, be provided with first arc and second arc in the through wires hole, first arc fixed connection is at the threading hole inner wall, be provided with the spring between second arc and the threading hole inner wall, spring fixed connection second arc and through wires hole, the threading pole is provided with clamping bolt outward, clamping bolt threaded connection is at the threading pole outer wall, the clamping bolt level sets up, and clamping bolt top and second arc outer wall butt.
Through adopting above-mentioned technical scheme, the vertical setting in through wires hole is perpendicular with the coil pivot, has increased the stability of cable in the coil pivot, and clamping bolt butt second arc outer wall can adapt to the cable of different thicknesses and use the threading pole fixed the cable conductor end, prevents that the terminal end from rolling off from the coil, has guaranteed winding efficiency, provides the guarantee for simple and convenient change coil, has improved staff's work efficiency.
The utility model discloses further set up to: a steering piece is arranged between the threading rod and the inner wall of the winding baffle, and the steering piece is rotatably connected with the threading rod and the winding baffle.
Through adopting above-mentioned technical scheme, the setting up of universal pivot enables the threading pole to adapt to different threading angles, prevents that the cable is too hard, and the threading angle is not right, causes the damage to the cable.
The utility model discloses further set up to: the steering part comprises a rotating plate, a second clamping plate and a connecting shaft, the rotating plate is fixedly connected with the inner side wall of the winding baffle, the inner wall of the second clamping plate is abutted to the outer wall of the rotating plate, and the connecting shaft is connected with the rotating plate and the second clamping plate in a rotating mode.
Through adopting above-mentioned technical scheme, commentaries on classics board, second splint and connecting axle enable the threading pole rotate on the plane perpendicular with the pivot, can easily adjust the angle between threading pole and the winding coil lateral wall.
The utility model discloses further set up to: a second bearing is arranged between the rotating shaft and the second fixing plate, and the second bearing is rotatably connected with the rotating shaft and the second fixing plate.
Through adopting above-mentioned technical scheme, the second bearing has reduced the frictional force between pivot and the second fixed plate, has improved motor effective power, has shortened the wire winding time, has improved staff's work efficiency.
To sum up, the utility model discloses a beneficial technological effect does:
1. the arrangement of the turntable and the first clamping plate enables the winding coil to be conveniently replaced when the cable is fully wound, the arrangement of the sliding groove and the sliding block can prevent the rotating shaft and the winding coil from sliding relatively, the third arc-shaped plate and the first bolt prevent the winding coil from sliding in the axial direction of the rotating shaft, and smooth winding of the winding coil is guaranteed;
2. the arrangement of the supporting rod and the shaft sleeve reduces the gravity brought by the winding coil born by the motor, ensures the working stability of the motor, improves the guarantee for replacing the winding coil and effectively improves the working efficiency of workers;
3. the cable wire end can be guaranteed to fix on the winding coil by the setting of threading pole, prevents that in the wire winding in-process, the cable produces relative slip with the winding coil, and first arc, second arc and clamping bolt can guarantee that the fixed cable of different diameters of threading pole, and the steering part can change the angle of threading pole, prevents that the cable from causing the damage because the threading pole is fixed to the cable.
Drawings
Fig. 1 is a schematic view of the overall structure of an auxiliary device for power engineering construction of the present invention;
fig. 2 is a schematic view of the whole structure of the auxiliary device for electric power engineering construction of the present invention showing the support rod;
FIG. 3 is a cross-sectional view of the slide groove and the slide block of the auxiliary device for power engineering construction of the present invention;
fig. 4 is a partially enlarged schematic view of a portion a in fig. 2.
In the figure, 1, a base; 11. a first fixing plate; 12. a second fixing plate; 13. a rotating shaft; 131. a chute; 132. a circular shaft; 133. a rectangular shaft; 134. a second bearing; 14. a shaft sleeve; 2. a motor; 21. an output shaft; 3. a first splint; 31. a connecting bolt; 4. a support bar; 41. a straight plate; 42. a second bolt; 5. winding a coil; 51. a slider; 52. a third arc-shaped plate; 53. a first bolt; 54. a threading rod; 541. threading holes; 542. a first arc-shaped plate; 543. a second arc-shaped plate; 544. A spring; 545. clamping the bolt; 55. a steering member; 551. rotating the plate; 552. a second splint; 553. a connecting shaft; 56. A spool; 57. a winding baffle; 6. a turntable.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses an auxiliary device is used in electric power engineering construction, including base 1, base 1 is rectangle platelike structure, and base 1 upper surface is provided with first fixed plate 11 and second fixed plate 12, and first fixed plate 11 sets up with second fixed plate 12 symmetry, first fixed plate 11 and base 1 fixed connection, is provided with carousel 6 between second fixed plate 12 and the base 1, and carousel 6 rotates and connects second fixed plate 12 and base 1.
Referring to fig. 2, a rotating shaft 13 is arranged between the first fixing plate 11 and the second fixing plate 12, the rotating shaft 13 includes a circular shaft 132 and a rectangular shaft 133, the central line of the circular shaft 132 coincides with the central line of the rectangular shaft 133, a motor 2 is arranged between the rectangular shaft 133 and the first fixing plate 11, the motor 2 is fixedly connected to the side wall of the first fixing plate 11, the motor 2 is horizontally arranged, the motor 2 is provided with an output shaft 21, a first clamping plate 3 is arranged between the output shaft 21 and the rectangular shaft 133, and the output shaft 21 is fixedly connected to the central position of the outer wall of the first clamping plate.
Referring to fig. 1, a connecting bolt 31 is arranged between the first clamping plate 3 and the rotating shaft 13, the connecting bolt 31 is in threaded connection with the rotating shaft 13 and the first clamping plate 3, the connecting bolt 31 facilitates the separation of the first clamping plate 3 and the rectangular shaft 133, the first clamping plate 3 and the rotating shaft 13 are convenient to disassemble, and the work efficiency of workers is improved.
Referring to fig. 2 and 3, a bearing is arranged between the rotating shaft 13 and the second fixing plate 12, the bearing is rotatably connected with the rotating shaft 13 and the second fixing plate 12, the outer wall of the rotating shaft 13 is sleeved with a winding coil 5, the winding coil 5 comprises a winding shaft 56 and a winding baffle 57, the inner wall of the winding shaft 56 is fixedly provided with a sliding block 51, the rotating shaft 13 is provided with a sliding groove 131, the sliding block 51 is abutted to the outer wall of the sliding groove 131, the outer wall of the winding baffle 57 is fixedly provided with a third arc-shaped plate 52, a first bolt 53 is arranged between the third arc-shaped plate 52 and the rotating shaft 13, the first bolt 53 and the third arc-shaped plate 52 jointly act to prevent the winding coil 5 from sliding on the.
Referring to fig. 2 and 4, a threading rod 54 is arranged on the inner side wall of the winding baffle 57, a steering part 55 is arranged between the threading rod 54 and the winding baffle 57, the steering part 55 comprises a rotating plate 551, a second clamping plate 552 and a connecting shaft 553, the rotating plate 551 is fixedly connected to the inner side wall of the winding baffle 57, the inner wall of the second clamping plate 552 abuts against the outer wall of the rotating plate 551, the connecting rod is rotatably connected with the second clamping plate 552 and the rotating plate 551, and the outer wall of the second clamping plate 552 is fixedly connected with the connecting rod. Threading hole 541 has been seted up on threading pole 54, be provided with first arc 542 and second arc 543 in the threading hole 541, first arc 542 sets firmly at threading hole 541 inner wall, be provided with spring 544 in second arc 543 and the threading hole 541, spring 544 fixed connection second arc 543 and threading pole 54, threading pole 54 outer wall is provided with clamp bolt 545, clamp bolt 545 butt second arc 543 outer wall, rotate clamp bolt 545, adjust the distance between first arc 542 and the second arc 543, it is the cable that threading pole 54 can adapt to different thicknesses, the angle between threading pole 54 and the wire end baffle 57 can be adjusted to setting up of steering part 55, prevent threading pole 54 from damaging the cable conductor when fixed cable.
Referring to fig. 2, the cover is equipped with axle sleeve 14 between wire winding baffle 57 and the rectangular shaft 133, axle sleeve 14 inner wall and the butt of pivot 13 outer wall, axle sleeve 14 outer wall has set firmly bracing piece 4, the vertical setting of bracing piece 4, 4 bottom ends of bracing piece have set firmly straight board 41, be provided with second bolt 42 between straight board 41 and the base 1, straight board 41 of second bolt 42 threaded connection and base 1, bracing piece 4's setting can reduce 5 pairs of motor 2 pressures around the coil, motor 2's normal operating has been guaranteed.
The implementation principle of the embodiment is as follows: the hollow winding coil 5 is sleeved on the rotating shaft 13, the third arc-shaped plate 52 is fixed on the rotating shaft 13 by using the first bolt 53, the shaft sleeve 14 is sleeved on the rotating shaft 13, the straight plate 41 is fixed on the upper surface of the base 1, the rotating shaft 13 is rotated to enable the rectangular shaft 133 to be sleeved in the first clamping plate 3, the connecting bolt 31 is used for connecting the rectangular shaft 133 and the first clamping plate 3, a cable is inserted into the threading hole 541 in the threading rod 54, the clamping bolt 545 is rotated to enable the first arc-shaped plate 542 and the second arc-shaped plate 543 to tighten the cable, the cable end is fixed, the motor 2 rotates to complete winding, the first bolt 53 is opened, the connecting bolt 31 and the shaft sleeve 14 are taken down, the rotating shaft 13 is rotated to take down the winding coil 5, the winding coil 5 is more conveniently replaced when the rotary table 6 is arranged, and the working efficiency of workers is improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides an auxiliary device is used in electric power engineering construction, including base (1), base (1) upper surface is provided with first fixed plate (11) and second fixed plate (12), first fixed plate (11) and second fixed plate (12) symmetry set up, and first fixed plate (11) and base (1) fixed connection, be provided with pivot (13) between first fixed plate (11) and second fixed plate (12), pivot (13) outer wall is provided with winding coil (5), winding coil (5) are including spool (56) and wire winding baffle (57), be provided with motor (2) between first fixed plate (11) and pivot (13), motor (2) are provided with output shaft (21), its characterized in that: a first clamping plate (3) is arranged between the output shaft (21) and the rotating shaft (13), the first clamping plate (3) is horizontally arranged, the first clamping plate (3) is of a U-shaped plate-shaped structure, the outer wall of the first clamping plate (3) is fixedly connected with the output shaft (21), the central line of the first clamping plate (3) is superposed with the central line of the output shaft (21), the inner wall of the first clamping plate (3) is abutted against the outer wall of the rotating shaft (13), a connecting bolt (31) is arranged between the first clamping plate (3) and the rotating shaft (13), the connecting bolt (31) is in threaded connection with the rotating shaft (13) and the first clamping plate (3), a sliding groove (131) is formed in the outer wall of the rotating shaft (13), a sliding block (51) is arranged in the inner wall of the winding shaft (56), the winding shaft (56) is sleeved on the outer wall of the rotating shaft (13), the sliding groove (131) is abutted against the outer, a rotary table (6) is arranged between the lower surface of the second fixing plate (12) and the base (1), and the rotary axis of the rotary table (6) is rotatably connected with the second fixing plate (12) and the base (1).
2. The auxiliary device for electric power engineering construction according to claim 1, wherein: the outer side wall of the winding baffle (57) is fixedly provided with a third arc-shaped plate (52), the third arc-shaped plate (52) is abutted to the outer wall of the rotating shaft (13), a first bolt (53) is arranged between the third arc-shaped plate (52) and the rotating shaft (13), and the first bolt (53) is in threaded connection with the third arc-shaped plate (52) and the rotating shaft (13).
3. The auxiliary device for electric power engineering construction according to claim 1, wherein: pivot (13) are including circle axle (132) and rectangle axle (133), circle axle (132) and rectangle axle (133) fixed connection, rectangle axle (133) outer wall and first splint (3) inner wall butt, and the upper surface level of rectangle axle (133) sets up, the central line collineation of the central line of rectangle axle (133) and circle axle (132).
4. The auxiliary device for electric power engineering construction according to claim 3, wherein: the round shaft (132) is close to that first splint (3) one end outer wall cover is equipped with axle sleeve (14), and axle sleeve (14) inner wall and pivot (13) butt, axle sleeve (14) outer wall have set firmly bracing piece (4), and bracing piece (4) vertical setting, bracing piece (4) bottom have set firmly straight board (41), are provided with second bolt (42) between straight board (41) and base (1), and straight board (41) of second bolt (42) threaded connection and base (1).
5. The auxiliary device for electric power engineering construction according to claim 1, wherein: wire winding baffle (57) inside wall is provided with threading pole (54), threading hole (541) has been seted up on threading pole (54), be provided with first arc (542) and second arc (543) in threading hole (541), first arc (542) fixed connection is in threading hole (541) inner wall, be provided with spring (544) between second arc (543) and threading hole (541) inner wall, spring (544) fixed connection second arc (543) and threading hole (541), threading pole (54) are provided with clamp bolt (545) outward, clamp bolt (545) threaded connection is at threading pole (54) outer wall, clamp bolt (545) level sets up, and clamp bolt (545) top and second arc (543) outer wall butt.
6. The auxiliary device for electric power engineering construction according to claim 5, wherein: a steering piece (55) is arranged between the threading rod (54) and the inner wall of the winding baffle (57), and the steering piece (55) is rotatably connected with the threading rod (54) and the winding baffle (57).
7. The auxiliary device for electric power engineering construction according to claim 6, wherein: the steering part (55) comprises a rotating plate (551), a second clamping plate (552) and a connecting shaft (553), the rotating plate (551) is fixedly connected with the inner side wall of the winding baffle plate (57), the inner wall of the second clamping plate (552) is abutted against the outer wall of the rotating plate (551), and the connecting shaft (553) is rotatably connected with the rotating plate (551) and the second clamping plate (552).
8. The auxiliary device for electric power engineering construction according to claim 1, wherein: and a second bearing (134) is arranged between the rotating shaft (13) and the second fixing plate (12), and the second bearing (134) is rotatably connected with the rotating shaft (13) and the second fixing plate (12).
CN202020004769.1U 2020-01-02 2020-01-02 Auxiliary device is used in electric power engineering construction Expired - Fee Related CN211545507U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020004769.1U CN211545507U (en) 2020-01-02 2020-01-02 Auxiliary device is used in electric power engineering construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020004769.1U CN211545507U (en) 2020-01-02 2020-01-02 Auxiliary device is used in electric power engineering construction

Publications (1)

Publication Number Publication Date
CN211545507U true CN211545507U (en) 2020-09-22

Family

ID=72489302

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020004769.1U Expired - Fee Related CN211545507U (en) 2020-01-02 2020-01-02 Auxiliary device is used in electric power engineering construction

Country Status (1)

Country Link
CN (1) CN211545507U (en)

Similar Documents

Publication Publication Date Title
CN216215598U (en) Pipeline fixing device on municipal works scaffold
CN211545507U (en) Auxiliary device is used in electric power engineering construction
CN216918063U (en) Pay-off for electric power construction
CN212387448U (en) Electric power construction kinking device
CN214828100U (en) Cable for electric power construction with multistage regulatory function
CN212982039U (en) Portable pay-off of rural power grids fortune dimension
CN212403023U (en) Can prevent pay-off for electric power installation of moving line
CN213265057U (en) Power cable winding device
CN210682821U (en) Cable manufacture is with anticreep line coiler
CN209973928U (en) Information engineering construction pay-off
CN214298726U (en) Electric power construction support frame
CN219408692U (en) A processingequipment for cable spiral
CN211338304U (en) Quick cable core pulling equipment for power maintenance
CN220884192U (en) Fixing mechanism for power cable rotation
CN215968212U (en) Initiative roller gear adds clamping apparatus with assistance-localization real-time structure
CN210490259U (en) Electric power is maintained with overhauing frame
CN215625866U (en) Electric wire winding device
CN219696253U (en) Coil clamping mechanism for winding machine
CN211083382U (en) Electric power electrical equipment strutting arrangement
CN218301172U (en) Motor stator and rotor assembling mechanism
CN219389636U (en) Plastic part for connecting automobile lamp
CN211615733U (en) Cable protection pipe cutting device
CN210176222U (en) Horizontal take-up and pay-off rack
CN214660176U (en) Subway shield constructs construction with pipeline extension fixture that starts
CN220502249U (en) Cable recovery device for power engineering

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200922

Termination date: 20220102