CN111719836A - Safe lifting device for high-voltage power grid line detection - Google Patents
Safe lifting device for high-voltage power grid line detection Download PDFInfo
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- CN111719836A CN111719836A CN202010660166.1A CN202010660166A CN111719836A CN 111719836 A CN111719836 A CN 111719836A CN 202010660166 A CN202010660166 A CN 202010660166A CN 111719836 A CN111719836 A CN 111719836A
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- lifting device
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- power grid
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/18—Scaffolds primarily resting on the ground adjustable in height
- E04G1/22—Scaffolds having a platform on an extensible substructure, e.g. of telescopic type or with lazy-tongs mechanism
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/02—Scaffold feet, e.g. with arrangements for adjustment
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/14—Railings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
- E04G2001/242—Scaffolds movable on wheels or tracks
Abstract
The invention discloses a safe lifting device for detecting a high-voltage power grid line, which relates to the technical field of high-voltage power grid operation, and is provided with a lateral anti-swing unit for resisting lateral force, when the lateral anti-swing unit is used, the top end of a rope is connected with a platform carrying workers in a hanging mode, the other end of the rope controls the tension degree of the rope through a winding structure, when the whole lifting device is changed from a folded state to an unfolded state, the winding structure releases the rope along with the rising of the platform, when the height of the platform reaches a detection requirement, the whole rope is in a tight state through the blocking treatment of the winding structure, a pulling force can be applied to the platform, when the platform swings, the rope can limit the position of the platform, so that the platform can be prevented from swinging laterally, and further the lifting device can be ensured to be unfolded, the safety system of the working personnel on the platform is improved, and safety accidents are prevented.
Description
Technical Field
The invention relates to the technical field of high-voltage power grid operation, in particular to a safe lifting device for detecting a high-voltage power grid line.
Background
The line maintenance refers to the work of the power transmission line aiming at eliminating defects, improving the health level of equipment, preventing accidents and ensuring the safe operation of the line according to the problems discovered by inspection, detection and test, and is a term in the power industry. The maintenance of the overhead distribution line is generally divided into three projects of improvement, overhaul and maintenance. The maintenance work of improving or dismantling the line for improving the safe operation performance of the line, improving the transmission capacity of the line and improving the labor condition is classified as an improved project. For example, the method is characterized in that the method comprises the following steps of replacing the common insulator with a large-section lead, an additional overhead ground wire, an additional insulator piece number or a pollution-resistant insulator, and replacing a wood pole with a reinforced concrete pole (concrete pole for short) or an iron tower and the like; the major repair engineering is repair engineering for repairing the existing running line or maintaining the original mechanical or electrical performance of the line and prolonging the service life of the line, such as replacing wires, fittings, metal members or anticorrosion treatment of the same type; the maintenance work refers to all the work for maintaining the normal operation of the line except major repair and improvement projects, such as cleaning the dirt of the insulator, testing the insulator, treating the line defect and the like.
When the staff is detecting high voltage electric network circuit, because high voltage electric network is higher apart from the height on ground, consequently need assist the staff to accomplish whole high voltage electric network's detection achievement with the help of elevating gear, but when high voltage electric network detected at present, the elevating gear that the staff used, when the in-service use, had following problem:
because the high-voltage power grid line is erected highly, therefore the elevating gear that uses must reach corresponding height, the staff need take the elevating gear, go to the height at high-voltage power grid fault point and carry out corresponding work, current elevating gear is after expandeing completely, the gravity point can rise thereupon, if meet strong wind environment, combine the staff to need the activity when detecting on it again, and the knuckle department of elevating gear is articulated, make the elevating gear after the expansion, in the horizontal direction, can appear the swing phenomenon of certain range, to the personal safety of staff in the testing process, bring the threat, consequently, the urgent need for one kind can resist the elevating gear of transverse stress, solve above-mentioned problem, for this reason, technical personnel in the field have proposed a high-voltage power grid line and have detected and used safe elevating gear.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a safe lifting device for detecting a high-voltage power grid line, which solves the problem that after the lifting device is completely unfolded, the gravity center of the lifting device can be lifted along with the lifting device, if the lifting device meets a strong wind environment, the lifting device needs to move in combination with a worker during detection, and joints of the lifting device are hinged, so that the unfolded lifting device can swing to a certain extent in the horizontal direction, and the safety of the worker in the detection process is threatened.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a high voltage electric network line detects uses safe elevating gear, includes and expandes and folding lift unit along vertical direction, lift unit is the bearing structure that stabilizes and can follow the locomotive removal that equipment load-carrying unit through its bottom fixed connection formed common erection joint has two sets of side directions to prevent the pendulum unit between equipment load-carrying unit's the top and lift unit's the top, and is two sets of the side direction is prevented the pendulum unit and is the symmetry setting in lift unit's both sides.
The lateral swing-proof unit comprises a support plate fixedly arranged on the end surface of the top of the equipment bearing unit, a motor base is fixedly welded on one side of the top of the support plate, a servo motor is fixedly arranged on the end surface of the top of the motor base, two sides of the top of the support plate are respectively and fixedly welded with a limit plate, a rope winding drum is rotatably connected between the two limiting discs, the driven end of the rope winding drum penetrates through the inside of one limiting disc and is connected with the driving end of the servo motor in series, the upper portions of two sides of the support plate are respectively and fixedly provided with a support plate, positioning insertion holes are formed in the inner portions of the support plates, the inner portions of the edges of the two limiting discs and the inner portions of two ends of the rope winding drum, and a positioning shaft rod is inserted into the inner portions of the positioning insertion holes on the same straight line.
Two the common fixed welding of top end face of backup pad has a crossbeam pole and the adjacent terminal surface fixed mounting of lift unit have a linear guide's slip terminal surface sliding connection has a slide fixed mounting has two sets of spacing gyro wheels on the slide towards lift unit's the terminal surface.
The rope winding drum is characterized in that a main rope is wound outside the rope winding drum, the free end of the main rope penetrates through the two groups of limiting rollers and extends towards the top of the lifting unit, a rope connecting piece is fixedly connected to the top end of the extending section, a branch rope A and a branch rope B are fixedly connected to the top end of the rope connecting piece respectively, and a hook is fixedly connected to the top ends of the branch rope A and the branch rope B respectively.
Preferably, the number of the positioning insertion holes formed in the two support plates is one, the number of the positioning insertion holes formed in the two ends of the limiting disc and the rope winding drum is several, the number of the positioning insertion holes is the same, the positioning insertion holes are distributed in an annular shape at the two ends of the limiting disc and the rope winding drum, and the inner diameter of each positioning insertion hole is larger than the outer diameter of each positioning shaft rod.
Preferably, the equipment bearing unit comprises a vehicle body bearing frame for bearing the weight of the whole device, a plurality of travelling wheels are fixedly mounted at the bottom of the vehicle body bearing frame, two carrier plates are symmetrically mounted on the top end face of the vehicle body bearing frame, and a set of extension bearing mechanisms are respectively and fixedly mounted at four corners of the vehicle body bearing frame.
Preferably, the extension bearing mechanism comprises a first section supporting beam fixedly connected with the vehicle body bearing frame, a second section supporting beam with a matched size is slidably connected inside the first section supporting beam, the extension and contraction of the second section supporting beam are driven by a first electric hydraulic rod, the non-extension section of the first electric hydraulic rod is fixedly installed on the lateral end face of the first section supporting beam, and the extension end of the first electric hydraulic rod is fixedly connected with the lateral end face of the second section supporting beam.
Preferably, a hydraulic rod mounting sleeve is fixedly welded to the outer end portion of the two-section supporting beam, a second electric hydraulic rod is fixedly mounted inside the hydraulic rod mounting sleeve, and the telescopic end of the second electric hydraulic rod faces the ground and is fixedly provided with a bearing disc.
Preferably, the lifting unit comprises a bearing base which is fixedly installed on the top end face of the equipment bearing unit and is integrally H-shaped, two lower sliding rails are symmetrically installed on one side of the top of the bearing base, two upper sliding rails are symmetrically arranged above the bearing base and opposite to the lower sliding rails, and two groups of lower sliding rails and two groups of upper sliding rails are connected with a group of foldable supporting frames in a rotating mode.
Preferably, the bottom end and the middle section inside the foldable support frame are rotatably connected with a third electric hydraulic rod in a hinged mode, and the two third electric hydraulic rods are always kept parallel in a telescopic state.
Preferably, the top end of the foldable support frame is connected with a bearing platform in a hinged mode, the periphery of the top end face of the bearing platform is fixedly provided with guardrails, and the bottom end face of the bearing platform is symmetrically provided with four suspension loops which are matched with the lateral anti-swing units for use.
Advantageous effects
The invention provides a safe lifting device for detecting a high-voltage power grid line. Compared with the prior art, the method has the following beneficial effects:
1. a safety lifting device for detecting high-voltage power network lines is characterized in that a lateral anti-swing unit for resisting lateral stress is additionally arranged in the existing lifting device for detecting the high-voltage power network lines, wherein the lateral anti-swing unit is connected with a platform carrying workers in a hanging mode in practical use, the other end of a rope controls the tension degree of the rope through a winding structure, when the whole lifting device is changed from a folding state to an unfolding state, the winding structure releases the rope along with the lifting of the platform, when the height of the platform reaches a detection requirement, the whole rope is in a tight state through clamping treatment of the winding structure, a pulling force can be applied to the platform, when the platform swings, the rope can limit the position of the platform, and therefore the platform can be prevented from swinging laterally, and further, after the lifting device is unfolded, the safety system of workers on the platform can be improved, and safety accidents can be prevented.
2. A safe lifting device for detecting a high-voltage power grid line is provided with an equipment bearing unit, wherein an extension bearing mechanism for increasing the bottom stability is arranged in the equipment bearing unit, the extension bearing mechanism comprises a first section supporting beam fixedly connected with a vehicle body bearing frame, a second section supporting beam with matched size is connected inside the first section supporting beam in a sliding manner, the extension of the second section supporting beam is driven by a first electric hydraulic rod, the non-extension section of the first electric hydraulic rod is fixedly arranged on the lateral end face of the first section supporting beam, the extension end of the first electric hydraulic rod is fixedly connected with the lateral end face of the second section supporting beam, the structure is characterized in that when the safety lifting device is actually used, the first electric hydraulic rod is started, so that the second section supporting beam extends out of the first section supporting beam, when four corners of the whole equipment bearing unit extend outwards together, this moment, the whole equipment bears the area grow of unit to combine the electronic hydraulic stem of second to drive and bear the dish and directly touch to ground, make whole elevating gear by jack-up, the walking wheel breaks away from ground, thereby improves the stability of whole elevating gear when the operation, safe and reliable more.
Drawings
FIG. 1 is a schematic structural view of the present invention in an unfolded state;
FIG. 2 is a schematic view of the present invention in a folded state;
FIG. 3 is a schematic structural diagram of a carrying unit of the apparatus of the present invention;
FIG. 4 is a schematic view of the extension carriage of the present invention;
FIG. 5 is a top view of the extension carriage of the present invention;
FIG. 6 is a schematic structural diagram of the lifting unit of the present invention;
FIG. 7 is a front view of the lift unit of the present invention;
FIG. 8 is a side view of the lift unit of the present invention;
FIG. 9 is a schematic structural view of the lateral swing-preventing unit according to the present invention;
FIG. 10 is a front view of the lateral swing prevention unit of the present invention;
fig. 11 is a side view of the lateral swing-prevention unit of the present invention.
In the figure: 1. an equipment carrying unit; 11. a vehicle body carrying frame; 12. a traveling wheel; 13. a carrier plate; 14. an extension bearing mechanism; 141. a section support beam; 142. the two sections support the beam; 143. a first electro-hydraulic lever; 144. the hydraulic rod is provided with a sleeve; 145. a second electro-hydraulic ram; 146. a carrier tray; 2. a lifting unit; 21. a load bearing base; 22. a lower slide rail; 23. an upper slide rail; 24. a collapsible support frame; 25. a third electro-hydraulic ram; 26. a load-bearing platform; 27. a guardrail; 28. hanging a ring; 3. a lateral swing prevention unit; 31. a mounting plate; 32. a motor base; 33. a servo motor; 34. a limiting disc; 35. hooking; 36. a cord winding reel; 37. positioning the jack; 38. positioning the shaft lever; 39. a support plate; 310. a beam rod; 311. a linear guide rail; 312. a slide base; 313. limiting the idler wheel; 314. a main rope; 315. a rope attachment; 316. a branch rope A; 317. and a branch rope B.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a high voltage electric network line detects uses safe elevating gear, includes and expandes and folding lift unit 2 along vertical direction, lift unit 2 is the firm bearing structure who just can follow the locomotive removal that forms through its bottom fixed connection's equipment load-bearing unit 1, and common erection joint has two sets of side directions to prevent putting unit 3 between the top of equipment load-bearing unit 1 and lift unit 2, and two sets of side directions are prevented putting unit 3 and are the symmetry setting in lift unit 2's both sides.
Referring to fig. 9-11, the lateral swing-preventing unit 3 includes a support plate 31 fixedly installed on the top end surface of the equipment bearing unit 1, a motor base 32 is fixedly welded on one side of the top of the support plate 31, a servo motor 33 is fixedly installed on the top end surface of the motor base 32, two limit disks 34 are respectively fixedly welded on two sides of the top of the support plate 31, a rope winding drum 36 is rotatably connected between the two limit disks 34, a driven end of the rope winding drum 36 penetrates through the inside of one of the limit disks 34 and is connected in series with a driving end of the servo motor 33, a support plate 39 is respectively fixedly installed above two sides of the support plate 31, positioning insertion holes 37 are respectively formed inside the two support plates 39, inside the edges of the two limit disks 34 and inside the two ends of the rope winding drum 36, a positioning shaft rod 38 is commonly inserted inside a plurality of positioning insertion holes 37 located on a straight line, the number of the positioning insertion holes 37 formed in the two support plates 39 is one, the number of the positioning insertion holes 37 formed in the two ends of the two limiting discs 34 and the two ends of the rope winding drum 36 is several, and the number of the positioning insertion holes 37 is the same, the several positioning insertion holes 37 are distributed annularly at the two ends of the limiting discs 34 and the rope winding drum 36, the inner diameter size of the positioning insertion holes 37 is larger than the outer diameter size of the positioning shaft rod 38, the top end surfaces of the two support plates 39 are fixedly welded with a cross beam rod 310 together, the end surface of the cross beam rod 310 adjacent to the lifting unit 2 is fixedly provided with a linear guide rail 311, the sliding end surface of the linear guide rail 311 is connected with a sliding seat 312 in a sliding manner, the end surface of the sliding seat 312 facing the lifting unit 2 is fixedly provided with two groups of limiting rollers 313, the outer part of the rope winding drum 36 is wound, and extends toward the top of the lifting unit 2, a rope connecting member 315 is fixedly connected to the top end of the extending section, a branch rope a316 and a branch rope B317 are respectively fixedly connected to the top end of the rope connecting member 315, and a hook 35 is fixedly connected to each of the top ends of the branch rope a316 and the branch rope B317.
Referring to fig. 3, the equipment carrying unit 1 includes a vehicle body carrying frame 11 for carrying the weight of the whole apparatus, a plurality of traveling wheels 12 are fixedly installed at the bottom of the vehicle body carrying frame 11, two carrier plates 13 are symmetrically installed on the top end surface of the vehicle body carrying frame 11, and a set of extension carrying mechanisms 14 are respectively and correspondingly and fixedly installed at four corners of the vehicle body carrying frame 11.
Referring to fig. 4-5, the extension supporting mechanism 14 includes a first section supporting beam 141 fixedly connected to the body supporting frame 11, a second section supporting beam 142 with a suitable size is slidably connected to the inside of the first section supporting beam 141, the extension and contraction of the second section supporting beam 142 is driven by a first electric hydraulic rod 143, a non-extension section of the first electric hydraulic rod 143 is fixedly installed on a lateral end surface of the first section supporting beam 141, an extension end of the first electric hydraulic rod 143 is fixedly connected to a lateral end surface of the second section supporting beam 142, a hydraulic rod installing sleeve 144 is fixedly welded to an outer end portion of the second section supporting beam 142, a second electric hydraulic rod 145 is fixedly installed inside the hydraulic rod installing sleeve 144, and an extension end of the second electric hydraulic rod 145 faces the ground and is fixedly installed with a supporting plate 146.
Referring to fig. 6-8, the lifting unit 2 includes a bearing base 21 fixedly installed on the top end surface of the equipment bearing unit 1 and having an overall H shape, two lower slide rails 22 are symmetrically installed on one side of the top of the bearing base 21, two upper slide rails 23 are symmetrically installed above the bearing base 21 and opposite to the lower slide rails 22, a set of foldable support frame 24 is connected between the two sets of lower slide rails 22 and the two sets of upper slide rails 23 in a common rotating manner, a third electric hydraulic rod 25 is connected to the bottom end and the middle section inside the foldable support frame 24 in a rotating manner in a hinged manner, the two third electric hydraulic rods 25 are always parallel in a telescopic state, a bearing platform 26 is connected to the top end of the foldable support frame 24 in a hinged manner, and guard rails 27 are fixedly installed around the top end surface of the bearing platform 26, four suspension loops 28 matched with the lateral swing-proof unit 3 are symmetrically arranged on the bottom end face of the bearing platform 26.
When the lifting device is used, the traction trailer head is utilized to pull the whole lifting device to a position where a high-voltage power network circuit needs to be overhauled, then the first electric hydraulic rod 143 is started to push the two-section supporting beam 142 to extend out of the inside of the one-section supporting beam 141, so that the bearing area of the whole vehicle body bearing frame 11 is increased, when the two-section supporting beam 142 completely extends out of the inside of the one-section supporting beam 141, the second electric hydraulic rod 145 is started to enable the second electric hydraulic rod 145 to drive the bearing disc 146 to be in contact with the ground until the whole lifting device is jacked up, and after the travelling wheels 12 are completely separated from the ground, the stability of the whole lifting device in the vertical direction during operation can be ensured, and the phenomenon of side turning is avoided;
then, the worker enters the guardrail 27 and is positioned on the bearing platform 26, at this time, two third electro-hydraulic rods 25 are started to enable the whole foldable support frame 24 to be unfolded, so that the bearing platform 26 is lifted to a certain height, and the purpose of conveying the worker to a high place is achieved, in the lifting process, the hooks 35 are all hung on the hanging rings 28, so that tension is generated on a rope structure formed by the branch ropes A316, the branch ropes B317 and the main rope 314, and the main rope 314 is released from the rope winding drum 36;
when the height of the bearing platform 26 reaches the detection requirement of the high-voltage power grid, the whole foldable support frame 24 stops unfolding, then the total rope 314 is not released from the rope winding drum 36, then the servo motor 33 is started to enable the rope winding drum 36 to rotate reversely, the total rope 314 is wound until the rope structure formed by the branch rope A316, the branch rope B317 and the total rope 314 is in a tight state, in the process of rotating the rope winding drum 36, the positioning jacks 37 arranged at the two ends of the rope winding drum 36 rotate along with the rotation of the two limiting discs 34, so that when the positioning jacks 37 at the two ends of the rope winding drum 36, the positioning jacks 37 arranged on the two limiting discs 34 and the positioning jacks 37 arranged on the two support plates 39 are all in the same straight line, the positioning shaft rods 38 are inserted into the positioning jacks 37, the rope winding drum 36 can not rotate, that is, the main rope 314 can not be released, so that the rope structure is always in a tight state, the problem that the bearing platform 26 swings greatly due to lateral force can be effectively prevented, and the safety of workers during operation is ensured.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A safe lifting device for detecting a high-voltage power grid line comprises a lifting unit (2) which is unfolded and folded along the vertical direction, and is characterized in that the lifting unit (2) is a stable supporting structure which is formed by fixedly connecting equipment bearing units (1) at the bottom of the lifting unit and can move along with a trailer head, two groups of lateral swing prevention units (3) are jointly installed and connected between the top of the equipment bearing units (1) and the top of the lifting unit (2), and the two groups of lateral swing prevention units (3) are symmetrically arranged on two sides of the lifting unit (2);
the lateral swing-proof unit (3) comprises a support plate (31) fixedly installed on the top end face of the equipment bearing unit (1), a motor base (32) is fixedly welded on one side of the top of the support plate (31), a servo motor (33) is fixedly installed on the top end face of the motor base (32), two limiting discs (34) are fixedly welded on two sides of the top of the support plate (31) respectively, a rope winding drum (36) is rotatably connected between the two limiting discs (34), the driven end of the rope winding drum (36) penetrates through the inside of one limiting disc (34) and is connected with the driving end of the servo motor (33) in series, a support plate (39) is fixedly installed above two sides of the support plate (31) respectively, and positioning insertion holes (37) are formed in the insides of the two support plates (39), the edge insides of the two limiting discs (34) and the insides of the two ends of the rope winding drum (36), a positioning shaft lever (38) is inserted into the positioning insertion holes (37) which are positioned on the same straight line;
the top end faces of the two supporting plates (39) are fixedly welded with a beam rod (310) together, the end face, adjacent to the lifting unit (2), of the beam rod (310) is fixedly provided with a linear guide rail (311), the sliding end face of the linear guide rail (311) is connected with a sliding seat (312) in a sliding mode, and the end face, facing the lifting unit (2), of the sliding seat (312) is fixedly provided with two groups of limiting idler wheels (313);
a main rope (314) is wound outside the rope winding drum (36), the free end of the main rope (314) penetrates through two groups of limiting rollers (313) and extends towards the top of the lifting unit (2), a rope connecting piece (315) is fixedly connected to the top end of the extending section, a branch rope A (316) and a branch rope B (317) are respectively fixedly connected to the top end of the rope connecting piece (315), and a hook (35) is fixedly connected to the top ends of the branch rope A (316) and the branch rope B (317).
2. The safety lifting device for detecting the high-voltage power grid line as claimed in claim 1, wherein the two supporting plates (39) are provided with one positioning jack (37), the two limiting discs (34) and the two ends of the rope winding drum (36) are provided with a plurality of positioning jacks (37) which are the same in number, the plurality of positioning jacks (37) are annularly distributed at the two ends of the limiting discs (34) and the two ends of the rope winding drum (36), and the inner diameter of each positioning jack (37) is larger than the outer diameter of each positioning shaft rod (38).
3. The safety lifting device for detecting the high-voltage power grid line according to claim 1, wherein the equipment bearing unit (1) comprises a vehicle body bearing frame (11) for bearing the weight of the whole device, a plurality of travelling wheels (12) are fixedly mounted at the bottom of the vehicle body bearing frame (11), two carrier plates (13) are symmetrically mounted on the top end face of the vehicle body bearing frame (11), and a group of extension bearing mechanisms (14) are respectively and correspondingly and fixedly mounted at four corners of the vehicle body bearing frame (11).
4. The safety lifting device for detecting the high-voltage power grid line according to claim 3, wherein the extension bearing mechanism (14) comprises a first section supporting beam (141) fixedly connected with the vehicle body bearing frame (11), a second section supporting beam (142) with a matched size is slidably connected inside the first section supporting beam (141), the extension and contraction of the second section supporting beam (142) are driven by a first electric hydraulic rod (143), the non-extension section of the first electric hydraulic rod (143) is fixedly arranged on the lateral end face of the first section supporting beam (141), and the extension and contraction end of the first electric hydraulic rod (143) is fixedly connected with the lateral end face of the second section supporting beam (142).
5. The safety lifting device for detecting the high-voltage power grid line according to claim 4, wherein a hydraulic rod mounting sleeve (144) is fixedly welded at the outer end part of the two-section supporting beam (142), a second electric hydraulic rod (145) is fixedly mounted inside the hydraulic rod mounting sleeve (144), the telescopic end of the second electric hydraulic rod (145) faces the ground, and a bearing disc (146) is fixedly mounted.
6. The safety lifting device for detecting the lines of the high-voltage power grid is characterized in that the lifting unit (2) comprises a bearing base (21) which is fixedly installed on the top end surface of the equipment bearing unit (1) and is integrally H-shaped, two lower sliding rails (22) are symmetrically installed on one side of the top of the bearing base (21), two upper sliding rails (23) are symmetrically arranged above the bearing base (21) and opposite to the lower sliding rails (22), and a group of foldable supporting frames (24) are connected between the two groups of lower sliding rails (22) and the two groups of upper sliding rails (23) in a rotating mode.
7. The safety lifting device for detecting the lines of the high-voltage power grid is characterized in that a third electro-hydraulic rod (25) is rotatably connected to the bottom end and the middle section inside the foldable supporting frame (24) in a hinged mode, and the two third electro-hydraulic rods (25) are always parallel in a telescopic state.
8. The safety lifting device for detecting the high-voltage power grid line as claimed in claim 7, wherein a bearing platform (26) is connected to the top end of the foldable supporting frame (24) in a hinged manner, guardrails (27) are fixedly installed around the top end face of the bearing platform (26), and four suspension loops (28) used with the lateral anti-swing unit (3) are symmetrically installed on the bottom end face of the bearing platform (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660166.1A CN111719836A (en) | 2020-07-10 | 2020-07-10 | Safe lifting device for high-voltage power grid line detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660166.1A CN111719836A (en) | 2020-07-10 | 2020-07-10 | Safe lifting device for high-voltage power grid line detection |
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| Publication Number | Publication Date |
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| CN111719836A true CN111719836A (en) | 2020-09-29 |
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|---|---|---|---|
| CN202010660166.1A Pending CN111719836A (en) | 2020-07-10 | 2020-07-10 | Safe lifting device for high-voltage power grid line detection |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114421250A (en) * | 2022-01-20 | 2022-04-29 | 湘西同富电力建设有限公司 | High-rise building engineering electric power cable termination |
| CN115303982A (en) * | 2022-09-14 | 2022-11-08 | 北京环境特性研究所 | Lifting platform for target electromagnetic characteristic test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112281915A (en) * | 2020-10-28 | 2021-01-29 | 未来都市（苏州工业园区）规划建筑设计事务所有限公司 | City utility tunnel |
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| CN113062577A (en) * | 2021-04-02 | 2021-07-02 | 湖北省工业建筑集团有限公司 | Power suspension self-lifting scaffold |
| CN114421250A (en) * | 2022-01-20 | 2022-04-29 | 湘西同富电力建设有限公司 | High-rise building engineering electric power cable termination |
| CN115303982A (en) * | 2022-09-14 | 2022-11-08 | 北京环境特性研究所 | Lifting platform for target electromagnetic characteristic test |
| CN115303982B (en) * | 2022-09-14 | 2023-11-07 | 北京环境特性研究所 | Lifting platform for testing electromagnetic characteristics of target |
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