CN115092850A - Well entering and lifting device for electric inspection well equipment - Google Patents
Well entering and lifting device for electric inspection well equipment Download PDFInfo
- Publication number
- CN115092850A CN115092850A CN202210829480.7A CN202210829480A CN115092850A CN 115092850 A CN115092850 A CN 115092850A CN 202210829480 A CN202210829480 A CN 202210829480A CN 115092850 A CN115092850 A CN 115092850A
- Authority
- CN
- China
- Prior art keywords
- well
- ring
- holes
- wheels
- wheel
- 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.)
- Granted
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Handcart (AREA)
Abstract
A well entering and lifting device for electric inspection well equipment relates to an electric inspection well equipment in-out device, wherein the left side and the right side of a well ring insert ring (2) are respectively provided with a bottom plate (6), the front upper part and the rear upper part of the two bottom plates are respectively provided with a supporting plate (4), and the upper parts of four sets of supporting plates are respectively provided with a grooved pulley (3); the two grooved wheels on the left side are connected in series by a left side linkage shaft (5), the two grooved wheels on the right side are connected in series by a right side linkage shaft, the front ends of the two linkage shafts are respectively provided with a manual wheel (8), and the two manual wheels are fixed by a wheel locking device (11) when not rotating; the lower ends of the steel wire ropes (1) on the four grooved wheels are respectively connected with the four sides of the lifting plate (15); according to the invention, the two manual wheels respectively control the two linkage shafts to enable the four grooved wheels to synchronously release the steel wire rope, so that equipment placed on the lifting plate can stably enter or exit the well.
Description
Technical Field
The invention relates to an electric inspection well equipment in-out device, in particular to an electric inspection well equipment in-well and well lifting device.
Background
In urban areas or large counties and towns, street beautification is one of important components for improving the life quality of people, and overhead various power lines, communication optical cables, cable television lines and the like can greatly improve the appearance by entering the ground; in order to improve the utilization rate of the underground line, a comprehensive pipe gallery mode is often adopted, namely, a plurality of lines are intensively used by using one inspection well, which puts higher requirements on line erection and maintenance, wherein the cable needs to be manufactured in the inspection well on site; the communication optical cable needs the branching of working a telephone switchboard, the cable television circuit also needs corresponding signal amplifier etc. used equipment is various when carrying out these operations, there is the electric welding roughly, it patrols and examines the dolly, the drying-machine, the electric drill, the electric hammer, waterproof lacquer, concrete, support, metallic structure, cable tractor, cable sleeve etc. the income well of these equipment and the method of rising the well utilize two ropes to be in equipment both sides lower part respectively, hold a rope slowly below by four people respectively, sometimes just can cause equipment to fall to damage carelessly, influence the time limit for a project.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a well entering and lifting device of electric inspection well equipment.
The technical scheme for realizing the invention is as follows:
a well entering and lifting device of electric inspection well equipment comprises a well ring insert ring, bottom plates, supporting plates, grooved wheels, a linkage shaft, a manual wheel, a wheel locking device, a steel wire rope and a lifting plate, wherein the left side and the right side of the well ring insert ring are respectively provided with the bottom plates, the front upper parts and the rear upper parts of the two bottom plates are respectively provided with the supporting plates, and the upper parts of four sets of supporting plates are respectively provided with the grooved wheels; the two grooved wheels on the left side are connected in series by a left side linkage shaft, the two grooved wheels on the right side are connected in series by a right side linkage shaft, the front ends of the two linkage shafts are respectively provided with a manual wheel, and the two manual wheels are fixed by a wheel locking device when not rotating; the lower ends of the steel wire ropes on the four grooved wheels are respectively connected with the four sides of the lifting plate.
The electric inspection well equipment enters the well and lifts the well device, the walling crib insert ring and the lifting plate are of square structures or circular structures; the lower surface of the well ring insert ring is provided with a lower convex ring matched with a well mouth of the inspection well.
The electric inspection well equipment well entering and lifting device is characterized in that two bottom plates which are arranged at intervals are respectively arranged on the left side and the right side of a well ring insert ring, two supporting plates which are arranged at intervals are respectively fixedly connected in front of and behind the upper part of each bottom plate, and round holes are respectively arranged on the upper parts of the eight supporting plates; the hole walls of the shaft holes of the four grooved wheels are respectively provided with a plane A; cutting planes are respectively arranged on the walls of the two linkage shafts, and the left linkage shaft penetrates through circular holes of four supporting plates on the left side of the well ring inserting ring and shaft holes of grooved wheels between every two supporting plates; the right linkage shaft penetrates through round holes of four supporting plates on the right side of the well ring inserting ring and shaft holes of grooved wheels between every two supporting plates, a cotter pin is arranged in a cotter pin hole formed in the rear end of each linkage shaft, and the front ends of the two linkage shafts are fixedly connected with manual wheels.
The electric inspection well equipment goes into well and rises well device, the outer fringe inboard of manual wheel is equipped with the annular slab, and the outer middle part of manual wheel is equipped with convex square, and the square outer end is equipped with the baffle, and the middle part is equipped with the trepanning in the manual wheel, the trepanning cover is at the universal driving shaft other end.
The electric inspection well equipment goes into the well and rises the well device, be equipped with the bulge loop respectively at the shaft hole both ends outer fringe of sheave.
The electric inspection well equipment enters the well and lifts the well device, the lower parts of the two ends of the wheel locking device are respectively provided with a bayonet.
The electric inspection well equipment goes into well and rises well device, be close to limit portion interval at the lifter plate and be equipped with a plurality of perforation, four wire rope's lower extreme is the rope hole of fixed connection rope pole middle part respectively, four rope poles are in fenestrate lower part after passing four perforation that the lifter plate is close to the four sides respectively.
The electric inspection well equipment well entering and lifting device is characterized in that stop rods are respectively arranged in through holes of the lifting plate except for through holes through which the steel wire ropes pass.
The electric inspection well equipment well entering and lifting device is characterized in that a surrounding convex ring is arranged in the middle of the stop lever.
Through the disclosure, the beneficial effects of the invention are as follows:
according to the well entering and lifting device of the electric inspection well equipment, the well ring insert ring is inserted into a well head to ensure that the well ring insert ring cannot slide, and the four grooved wheels are controlled by the two manual wheels, so that the synchronism is guaranteed; the wheel locking device can ensure the stability of articles or equipment placed on the lifting plate, and the stop rod on the lifting plate prevents the equipment from sliding off in the lifting process; the invention ensures the safety of equipment entering and lifting, namely ensures that the equipment cannot be damaged and also ensures that underground personnel cannot be injured by crashing.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a top view of the well curb insert ring, base plate, support plate and sheave of the present invention;
FIG. 3 is a schematic perspective view of a linkage shaft of the present invention;
figure 4 is a schematic perspective view of the sheave of the present invention;
FIG. 5 is a schematic perspective view of the grommets insert ring, base plate and support plate of the present invention;
FIG. 6 is a schematic view of the hand wheel configuration of the present invention;
FIG. 7 is a schematic perspective view of the lifter plate of the present invention;
FIG. 8 is a perspective view of the cord lever of the present invention;
FIG. 9 is a perspective view of the wheel locking device of the present invention;
FIG. 10 is a perspective view of the stop lever of the present invention;
in the figure: 1. a wire rope; 2. inserting a well ring; 3. a grooved wheel; 4. a support plate; 5. a linkage shaft; 6. a base plate; 7. cutting a plane; 8. a hand-operated wheel; 9. a block; 10. a baffle plate; 11. a wheel locking device; 12. a bayonet; 13. a stop lever; 14. perforating; 15. a lifting plate; 16. a rope lever; 17. a split pin hole; 18. a pin hole A; 19. a wheel groove; 20. a plane A; 21. a shaft hole; 22. a projecting ring; 23. a circular hole; 24. trepanning; 25. a plane B; 26. a pin hole B; 27. rope holes; 28. a raised ring.
Detailed Description
The invention will be further illustrated with reference to the following examples; the following examples are not intended to limit the present invention, and are only used as a support for the implementation of the present invention, and any equivalent structure replacement within the technical framework of the present invention is included in the protection scope of the present invention;
the well entering and lifting device of the electric inspection well equipment, which is combined with the attached drawings 1-10, comprises a well ring insert ring 2, a bottom plate 6, a supporting plate 4, a grooved pulley 3, a universal driving shaft 5, a manual wheel 8, a wheel locking device 11, a steel wire rope 1 and a lifting plate 15, wherein the well ring insert ring 2 and the lifting plate 15 are of square structures or circular structures; the lower surface of the well ring insert ring 2 is provided with a lower convex ring matched with a well mouth of the inspection well, namely the thickness of the well ring insert ring 2 is more than one time of that of the bottom plate 6; the left side and the right side of the well ring insert 2 are respectively provided with a bottom plate 6, the front upper surface and the rear upper surface of the two bottom plates 6 are respectively provided with a supporting plate 4, and the upper parts of the four supporting plates 4 are respectively provided with a grooved pulley 3; the two grooved wheels 3 on the left side are connected in series through a left side linkage shaft 5, the two grooved wheels 3 on the right side are connected in series through a right side linkage shaft 5, manual wheels 8 are respectively arranged at the front ends of the two linkage shafts 5, and the two manual wheels 8 are fixed by a wheel locking device 11 when not rotating; the lower ends of the steel wire ropes 1 on the wheel grooves 19 of the four grooved wheels 3 are respectively connected with the four sides of the lifting plate 15.
With reference to fig. 1, 2, 3, 4, 5, 6 or 9, two bottom plates 6 arranged at intervals are respectively arranged on the left side and the right side of the walling crib insert ring 2, the upper part of each bottom plate 6 is fixedly connected with two supporting plates 4 arranged at intervals in front and back, and the upper parts of the eight supporting plates 4 are respectively provided with a round hole 23; the hole walls of the shaft holes 21 of the four grooved wheels 3 are respectively provided with a plane A20; the walls of the two universal driving shafts 5 are respectively provided with a cutting plane 7, the left universal driving shaft 5 penetrates through round holes 23 of four supporting plates 4 on the left side of the well ring inserting ring 2 and a shaft hole 21 of the grooved wheel 3 between every two supporting plates 4, and the outer edges of two ends of the shaft hole 21 of the grooved wheel 3 are respectively provided with a protruding ring 22; the right-side linkage shafts 5 penetrate through circular holes 23 of four supporting plates 4 on the right side of the well ring inserting ring 2 and shaft holes 21 of the grooved wheels 3 between every two supporting plates 4, split pins are arranged in split pin holes 17 formed in the rear ends of the two linkage shafts 5, and the front ends of the two linkage shafts 5 are fixedly connected with manual wheels 8; the outer fringe inboard of manual wheel 8 is equipped with the annular slab, and the outer middle part of manual wheel 8 is equipped with convex square 9, and square 9 outer end is equipped with baffle 10, the both ends lower part of lock wheel ware 11 is equipped with the bayonet 12 of blocking square 9 respectively, and the middle part is equipped with the trepanning 24 of matcing universal driving shaft 5 in the manual wheel 8, is equipped with the plane B25 of matcing universal driving shaft 5 cutting plane 7 on the trepanning 24 wall, and the trepanning 24 cover of manual wheel 8 is back on universal driving shaft 5, passes the outside pin hole B26 to trepanning 24 of manual wheel 8 square 9 and the pin hole A18 that the universal driving shaft 5 other end set up by the pin and acquires the fixed connection of manual wheel 8 and the universal driving shaft 5 other end.
With reference to fig. 1, 7, 8 or 10, a plurality of through holes 14 are formed at intervals at the edge portion of the lifting plate 15, the lower ends of four steel wire ropes 1 are respectively and fixedly connected with rope holes 27 in the middle of rope rods 16, and the four rope rods 16 respectively penetrate through the four through holes 14 at the four edges of the lifting plate 15 and then are positioned at the lower portions of the through holes 14; in the lifting plate 15, stop levers 13 are respectively arranged in the bores 14, with the exception of the bore 14 through which the cable 1 passes, and a circumferential raised ring 28 is arranged in the middle of the stop levers 13.
The electric inspection well equipment well entering and lifting device is implemented by combining the attached drawings 1 to 10, the well ring insert 2, the bottom plate 6 and the support plate 4 are of an integrated structure, and light aluminum alloy and hard plastic with strength meeting requirements can be used; the grooved pulley 3, the manual wheel 8, the lifting plate 15 and the wheel locking device 11 can be made of light aluminum alloy and hard plastic with strength meeting the requirements; the locking gear 11 and the universal driving shaft 5 are preferably made of aluminum alloy materials; the stop rod 13 can be a hollow structure, and the material is preferably aluminum alloy.
When the device is used, a lower convex ring on the lower surface of a well ring insert ring 2 is inserted into a well head, four rope rods 16 at the lower ends of four steel wire ropes 1 are respectively inserted into through holes 14 of a lifting plate 15, two manual wheels 8 are adjusted to enable the upper surface of the lifting plate 15 to be basically level with the well ring insert ring 2, two bayonets 12 of a wheel locking device 11 are respectively used for clamping blocks 9 of the two manual wheels 8, the device is placed on the lifting plate 15, a stop rod 13 is used for being inserted into the residual through holes 14 of the lifting plate 15 to place the device to slide down, then the wheel locking device 11 is taken down, two persons synchronously rotate the manual wheels 8, and when the underground persons confirm that the device is stabilized at the bottom of the well, the underground persons take down the device, and the lifting plate 15 is lifted by the manual wheels 8 to secondarily use conveying devices or other objects; when the device used in the method is used for lifting a well, the empty lifting plate 15 is placed into the well, underground personnel put the device on the lifting plate 15, and the device is taken down after the lifting plate 15 is lifted by the aid of the movable wheels 8.
The present invention is not described in detail in the prior art.
Claims (9)
1. The utility model provides an electric power inspection shaft equipment goes into well and rises well device, includes walling crib insert ring (2), bottom plate (6), backup pad (4), sheave (3), universal driving shaft (5), manual wheel (8), lock wheel ware (11), wire rope (1) and lifter plate (15), characterized by: the left side and the right side of the well ring insert (2) are respectively provided with a bottom plate (6), the front upper part and the rear upper part of the two bottom plates (6) are respectively provided with a supporting plate (4), and the upper parts of the four sets of supporting plates (4) are respectively provided with grooved wheels (3); the two grooved wheels (3) on the left side are connected in series through a left side linkage shaft (5), the two grooved wheels (3) on the right side are connected in series through a right side linkage shaft (5), manual wheels (8) are respectively arranged at the front ends of the two linkage shafts (5), and the two manual wheels (8) are fixed through a wheel locking device (11) when not rotating; the lower ends of the steel wire ropes (1) on the four grooved wheels (3) are respectively connected with the four sides of the lifting plate (15).
2. The electric inspection well equipment well entering and lifting device according to claim 1, wherein: the well ring insert ring (2) and the lifting plate (15) are of square structures or circular structures; the lower surface of the well ring insert ring (2) is provided with a lower convex ring matched with a well mouth of the inspection well.
3. The electric inspection well equipment well entering and lifting device according to claim 1, wherein: the left side and the right side of the walling crib insert ring (2) are respectively provided with two bottom plates (6) which are arranged at intervals, the front part and the rear part of the upper part of each bottom plate (6) are respectively fixedly connected with two supporting plates (4) which are arranged at intervals, and the upper parts of the eight supporting plates (4) are respectively provided with a round hole (23); the hole walls of the shaft holes (21) of the four grooved wheels (3) are respectively provided with a plane A (20); the wall of each of the two universal driving shafts (5) is provided with a cutting plane (7), and the universal driving shaft (5) on the left side penetrates through round holes (23) of four supporting plates (4) on the left side of the well ring inserting ring (2) and shaft holes (21) of grooved wheels (3) between every two supporting plates (4); the right-side linkage shaft (5) penetrates through round holes (23) of four supporting plates (4) on the right side of the well ring inserting ring (2) and a shaft hole (21) of the grooved wheel (3) between every two supporting plates (4), a split pin is arranged in a split pin hole (17) formed in the rear ends of the two linkage shafts (5), and the front ends of the two linkage shafts (5) are fixedly connected with a manual wheel (8).
4. The electric inspection well equipment well entering and lifting device according to claim 1 or 3, characterized in that: the inner side of the outer edge of the manual wheel (8) is provided with an annular plate, the middle part of the outer edge of the manual wheel (8) is provided with a convex square block (9), the outer end of the square block (9) is provided with a baffle (10), the middle part of the inner edge of the manual wheel (8) is provided with a sleeve hole (24), and the sleeve hole (24) is sleeved at the other end of the universal driving shaft (5).
5. The electric inspection well equipment well entering and lifting device according to claim 3, wherein: the outer edges of two ends of the shaft hole (21) of the grooved pulley (3) are respectively provided with a convex ring (22).
6. The electric inspection well equipment well entering and lifting device according to claim 1, wherein: bayonets (12) are respectively arranged at the lower parts of the two ends of the wheel locking device (11).
7. The electric inspection well equipment well entering and lifting device as claimed in claim 1, wherein: a plurality of through holes (14) are formed in the lifting plate (15) close to the edge at intervals, the lower ends of four steel wire ropes (1) are fixedly connected with rope holes (27) in the middle of rope rods (16) respectively, and the four rope rods (16) penetrate through the four through holes (14) in the lifting plate (15) close to the four sides and then are located at the lower portions of the through holes (14).
8. The electric inspection well equipment well entering and lifting device according to claim 7, wherein: stop levers (13) are provided in the through holes (14) of the lifting plate (15) except for the through hole (14) through which the wire rope (1) passes.
9. The electric inspection well equipment well entering and lifting device according to claim 8, wherein: a surrounding raised ring (28) is arranged in the middle of the stop lever (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210829480.7A CN115092850B (en) | 2022-07-15 | 2022-07-15 | Well entering and lifting device for electric power inspection well equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210829480.7A CN115092850B (en) | 2022-07-15 | 2022-07-15 | Well entering and lifting device for electric power inspection well equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115092850A true CN115092850A (en) | 2022-09-23 |
| CN115092850B CN115092850B (en) | 2024-01-26 |
Family
ID=83296582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210829480.7A Active CN115092850B (en) | 2022-07-15 | 2022-07-15 | Well entering and lifting device for electric power inspection well equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115092850B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4029297A (en) * | 1974-10-11 | 1977-06-14 | The General Electric Company Limited | Winches for use with high masts |
| CN202848972U (en) * | 2012-09-13 | 2013-04-03 | 东华大学 | Multi-freedom degree lifting device |
| CN110127551A (en) * | 2019-05-16 | 2019-08-16 | 滁州潍铭扬智能科技有限公司 | A kind of single motor chain conveyer rope hoisting mechanism |
| CN210285175U (en) * | 2019-08-05 | 2020-04-10 | 浙江港发软包装有限公司 | Novel synchronous gold stamping windowing flexible packaging bag |
| CN211056595U (en) * | 2019-11-18 | 2020-07-21 | 青岛康太源建设集团有限公司 | Novel building electrical construction goes up and down device |
| CN214935675U (en) * | 2021-06-08 | 2021-11-30 | 红河鑫胜建设工程有限公司 | Water conservancy construction pipe laying pay-off |
| CN215946617U (en) * | 2021-10-29 | 2022-03-04 | 沈阳市尼克装饰设计有限公司 | Hydraulic lifting platform convenient for buried sand table internal maintenance circuit |
-
2022
- 2022-07-15 CN CN202210829480.7A patent/CN115092850B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4029297A (en) * | 1974-10-11 | 1977-06-14 | The General Electric Company Limited | Winches for use with high masts |
| CN202848972U (en) * | 2012-09-13 | 2013-04-03 | 东华大学 | Multi-freedom degree lifting device |
| CN110127551A (en) * | 2019-05-16 | 2019-08-16 | 滁州潍铭扬智能科技有限公司 | A kind of single motor chain conveyer rope hoisting mechanism |
| CN210285175U (en) * | 2019-08-05 | 2020-04-10 | 浙江港发软包装有限公司 | Novel synchronous gold stamping windowing flexible packaging bag |
| CN211056595U (en) * | 2019-11-18 | 2020-07-21 | 青岛康太源建设集团有限公司 | Novel building electrical construction goes up and down device |
| CN214935675U (en) * | 2021-06-08 | 2021-11-30 | 红河鑫胜建设工程有限公司 | Water conservancy construction pipe laying pay-off |
| CN215946617U (en) * | 2021-10-29 | 2022-03-04 | 沈阳市尼克装饰设计有限公司 | Hydraulic lifting platform convenient for buried sand table internal maintenance circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115092850B (en) | 2024-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105442932B (en) | A kind of power grid electric pole embedded device and construction method | |
| US10385527B2 (en) | Method for electric power construction warning and device thereof | |
| CN202643193U (en) | Movable hydraulic crane tripod | |
| CN105421860A (en) | Electricity grid telegraph pole erecting device and construction method | |
| CN210263850U (en) | Novel building and erecting frame | |
| US3696241A (en) | Light fixture tower | |
| CN115092850A (en) | Well entering and lifting device for electric inspection well equipment | |
| CN212369445U (en) | Underground lifesaving equipment | |
| CN2379090Y (en) | Multi-purpose miniature machine for cleaning windows | |
| CN111632296A (en) | Underground lifesaving equipment | |
| CN205442452U (en) | Convenient hoisting accessory of substation equipment safety | |
| CN209890045U (en) | Lifting equipment for manual hole digging pile | |
| CN114221260A (en) | Insulator maintenance frame of electric power pylon | |
| CN210767753U (en) | Lifting device for building engineering | |
| CN109742655B (en) | Outdoor switch board dismantlement formula hoisting structure | |
| CN211037767U (en) | Hanging basket device for single person | |
| CN220351515U (en) | Small-sized lifting special device based on working face of main transformer | |
| CN209948534U (en) | Light hoisting equipment for power transmission line | |
| CN216512626U (en) | Prefabricated apron is with over-and-under type ann dismouting device | |
| CN210482947U (en) | Construction working frame for constructional engineering | |
| CN218265243U (en) | Rod piece with ladder capable of being provided with lifting lamp panel | |
| CN215254773U (en) | Pit protection safety device for building site | |
| JP2879316B2 (en) | Pole for building pole | |
| CN214659319U (en) | Deep foundation pit omnibearing adjustable protection fence | |
| CN111411810A (en) | Uninterrupted low-voltage telegraph pole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |