CN116462120A - Cable shaft heavy object lifts by crane anti-falling device - Google Patents
Cable shaft heavy object lifts by crane anti-falling device Download PDFInfo
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- CN116462120A CN116462120A CN202310338805.6A CN202310338805A CN116462120A CN 116462120 A CN116462120 A CN 116462120A CN 202310338805 A CN202310338805 A CN 202310338805A CN 116462120 A CN116462120 A CN 116462120A
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- 230000008093 supporting effect Effects 0.000 claims abstract description 54
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 239000003381 stabilizer Substances 0.000 claims description 22
- 230000000087 stabilizing effect Effects 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 208000027418 Wounds and injury Diseases 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/04—Driving gear manually operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/74—Capstans
- B66D1/7442—Capstans having a horizontal rotation axis
- B66D1/7452—Capstans having a horizontal rotation axis driven manually only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/04—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes actuated by centrifugal force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a cable well weight lifting anti-falling device, and relates to the technical field of overhead operation lifting equipment. The device comprises a supporting component, a plurality of groups of edge supporting pieces and a plurality of groups of supporting plates, wherein the supporting component comprises a central supporting piece and an edge supporting piece, one end of the central supporting piece is open, the other end of the central supporting piece is closed, a containing cavity is formed in the central supporting piece, and the edge supporting pieces are connected to the outer wall of the central supporting piece; the lifting assembly comprises a lifting wheel, a lifting rope and a lifting base, wherein the lifting wheel is in rolling connection with the accommodating cavity, the lifting rope is symmetrically wound on the lifting wheel, one end of the lifting rope is fixedly connected to the lifting wheel, the other end of the lifting rope is connected with the lifting base, and the lifting base can be controlled to ascend and descend through the lifting wheel; the speed regulating assembly comprises a speed regulating rod which is inserted into the central supporting piece and is movably connected with the lifting wheel. The invention effectively solves the problems of personnel injury caused by the fact that the existing equipment has high physical consumption on ground staff and the staff loses hands and the mooring rope stalls and falls down.
Description
Technical Field
The invention relates to the technical field of overhead working hoisting equipment, in particular to a cable shaft heavy object hoisting anti-falling device.
Background
Based on the requirements of the company for building an intrinsic safety enterprise, the production line unit shall strengthen management of people, objects and rings in three directions, and the overhead operation is not lost in safety protection, but is an important point for carrying out intrinsic safety management. In previous line work, most of the light is concentrated on towers, steel poles, concrete poles or above ground 2 meters above where safety protection is not lost in connection with overhead operations, without substantial concern for sub-ground operations such as in cable wells.
Further, work in a cable pit often requires the transfer of tools or the encounter of lifting weights (e.g., lifting a remaining cable coiled in a cable pit, etc.). The traditional working mode is that ground staff uses the lifting rope to put down tools and instruments, or ground staff puts down one end of the lifting rope, staff binds the heavy object in a cable duct, the ground uses manpower to pull up the heavy object, if meet the condition that the heavy object is required to be kept at a certain height for a long time, the requirements on the physical strength and the quantity of the ground staff are high, the ground staff can lose hands sometimes, a cable suspending the staff or tools is stalled and falls down, and the injury of the staff is caused.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The invention is provided in view of the problem that the existing lifting equipment can suffer from stalling and falling, so that personnel are injured.
Therefore, the invention aims to provide a cable shaft heavy object lifting anti-falling device, which aims to reduce the rotating speed or the rotating state of a lifting wheel to ensure the falling speed of equipment by controlling the rotating speed and the rotating state of the lifting wheel so as to achieve the aim of protecting normal construction of workers.
In order to solve the technical problems, the invention provides the following technical scheme: a cable pit weight lifting and anti-falling device, the device comprising: the support assembly comprises a central support piece and edge support pieces, one end of the central support piece is open, the other end of the central support piece is closed, a containing cavity is formed in the central support piece, and the edge support pieces are provided with a plurality of groups and are connected to the outer wall of the central support piece; the lifting assembly comprises a lifting wheel, a lifting rope and a lifting base, wherein the lifting wheel is in rolling connection with the accommodating cavity, the lifting rope is symmetrically wound on the lifting wheel, one end of the lifting rope is fixedly connected to the lifting wheel, the other end of the lifting rope is connected with the lifting base, and the lifting base can be controlled to ascend and descend through the lifting wheel; the speed regulating assembly comprises a speed regulating rod, and the speed regulating rod is inserted into the central supporting piece and is movably connected with the lifting wheel.
The cable shaft heavy object lifting anti-falling device is characterized by comprising the following components: the lifting wheel comprises a speed limiting wheel and winding wheels, the winding wheels are symmetrically arranged on two sides of the speed limiting wheel, and the lifting rope is wound on the winding wheels.
The cable shaft heavy object lifting anti-falling device is characterized by comprising the following components: the speed limiting wheel is provided with a friction sleeve, the two sides of the friction sleeve are symmetrically provided with accommodating grooves, a plurality of groups of clamping pieces are rotationally arranged in the accommodating grooves, friction force can be generated between the side walls of the clamping pieces and the side walls of the accommodating grooves, and when the friction force is smaller than the centrifugal force generated by rotation of the speed limiting wheel, the clamping pieces can extend out of the accommodating grooves.
The cable shaft heavy object lifting anti-falling device is characterized by comprising the following components: the speed regulating rod comprises a U-shaped braking part, two ends of the opening of the U-shaped braking part are symmetrically and rotatably connected with a movable part, the other end of the movable part is rotatably connected with a sliding part, and one end, far away from the movable part, of the sliding part is connected with a handle; the side walls at two ends of the U-shaped braking piece are inserted into the side walls of the central supporting piece, two ends of the U-shaped opening extend out of the central supporting piece and are connected with the movable piece, the U-shaped groove of the U-shaped braking piece is arranged in the central supporting piece, and the lifting wheel is matched with the U-shaped groove to rotate; the U-shaped braking piece is provided with a friction block and a braking tooth block on the inner wall and the side wall close to the bottom of the groove respectively, the friction block is movably connected with the friction sleeve, and the braking tooth block is movably engaged and connected with the clamping piece.
The cable shaft heavy object lifting anti-falling device is characterized by comprising the following components: the outer wall of one side of the central supporting piece is provided with a sliding column, the outer wall of one side opposite to the outer wall is provided with a stable telescopic box, the sliding column is sleeved with a spring, one end of the spring is connected with the outer wall of the central supporting piece, the other end of the spring is connected with a sliding piece, and the sliding piece is sleeved on the sliding column in a sliding manner; the stabilizing telescopic box is internally provided with a stabilizing rod which can rotate, stretch and retract and store.
The cable shaft heavy object lifting anti-falling device is characterized by comprising the following components: the edge support comprises a first support rod and a second support rod, and the second support rod can slide and retract into the first support rod; the four corners of the outer wall of the central supporting piece are also provided with angle adjusting blocks, and one end of the second supporting rod extending out of the first supporting rod is rotationally connected in the angle adjusting blocks.
The cable shaft heavy object lifting anti-falling device is characterized by comprising the following components: the first support rod is internally provided with a cavity, the second support rod can be accommodated in the cavity in a matched mode, a limiting groove is formed in the inner wall of the first support rod, a limiting block is connected in a sliding mode in the limiting groove, and a rotating hole is formed in the middle of the limiting groove; a first tooth block is arranged on one side, close to the cavity, of the limiting block, and a worm is rotationally connected to the middle part of the other side of the limiting block and is in threaded connection with the rotating hole; the side wall of one side of the second supporting rod, which is close to the limiting groove, is provided with a second tooth block, and the first tooth block is connected with the second tooth block in a meshed mode.
The cable shaft heavy object lifting anti-falling device is characterized by comprising the following components: the lifting base top is provided with the suspension rod, lifting rope and suspension rod swing joint, the stabilizing hole has been seted up to lifting base bottom.
The cable shaft heavy object lifting anti-falling device is characterized by comprising the following components: the bottom end of the stabilizer bar is fixedly connected with a first stabilizer block and a second stabilizer block, the first stabilizer block can pass through the stabilizer hole in a matched manner, and the distance between the first stabilizer block and the second stabilizer block is equal to the thickness of the bottom end wall body of the lifting base; the stabilizer bar and the symmetrically arranged lifting ropes form an isosceles triangle shape.
The cable shaft heavy object lifting anti-falling device is characterized by comprising the following components: the side wall of one end of the lifting wheel is connected with an L-shaped rocker, and the L-shaped rocker can control the lifting wheel to rotate.
The invention has the beneficial effects that:
the lifting equipment is fixed above the cable shaft through the supporting component, so that the normal and stable operation of the equipment is ensured, and construction accidents caused by inclination are avoided; the operation state of the lifting assembly is controlled by manually operating the speed regulating assembly, constructors can flexibly control the rotating speed of the lifting assembly according to the site condition during construction, the site requirement is adapted, the construction safety and the speed are improved, and the problem that personnel or tools fall when equipment stalls is effectively avoided by the speed regulating assembly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the overall structure of the cable well weight lifting anti-falling device.
Fig. 2 is a partially enlarged view of a certain view angle of the cable shaft weight lifting anti-falling device of the invention.
Fig. 3 is a schematic diagram of a part of the structure of a U-shaped braking member and a winding wheel of the cable shaft weight lifting anti-falling device.
Fig. 4 is a schematic view of a partial structure of a cable well weight lifting anti-falling device according to the present invention at a certain view angle.
Fig. 5 is a schematic diagram of the structure of the stabilizing expansion tank and the speed regulating rod of the cable well weight lifting anti-falling device.
Fig. 6 is a schematic diagram of the edge support structure of the cable well weight lifting anti-falling device.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1, for a first embodiment of the present invention, there is provided a cable well weight lifting and falling preventing device, the device comprising: the support assembly 100 comprises a central support 101 and edge supports 102, wherein one end of the central support 101 is open, the other end is closed, a containing cavity O is formed in the central support, and a plurality of groups of edge supports 102 are arranged and connected to the outer wall of the central support 101; the lifting assembly 200 comprises a lifting wheel 201, a lifting rope 202 and a lifting base 203, wherein the lifting wheel 201 is in rolling connection with the inside of the accommodating cavity O, the lifting rope 202 is symmetrically wound on the lifting wheel 201, one end of the lifting rope is fixedly connected with the lifting wheel 201, the other end of the lifting rope is connected with the lifting base 203, and the lifting base 203 can be controlled to ascend and descend by the lifting wheel 201; the speed regulating assembly 300 comprises a speed regulating rod 301, wherein the speed regulating rod 301 is inserted into the central supporting piece 101 and is movably connected with the lifting wheel 201.
The lifting wheel 201 which is rotationally arranged in the central supporting piece 101 is a main power source of the device, the lifting rope 202 is wound on the lifting wheel 201 and rotates forward and backward along with the lifting wheel 201, so that the purpose of lifting and lowering the lifting base 203 into a cable well is achieved, the material of the lifting rope 202 in the embodiment is preferably a synthetic fiber material, and the lower lifting rope of the material has the characteristics of high strength, good elasticity, wear resistance and corrosion resistance, and greatly meets construction requirements; the edge support 102 has the capability of freely telescoping, and is used for adapting to the rough site terrain environment and guaranteeing the stability of the lifting device.
In addition, the speed regulating rod 301 is slidably inserted on the outer wall of the central supporting piece 101, so that the friction coefficient between the speed regulating rod and the lifting wheel 201 can be flexibly adjusted, the friction force is changed, and the rotation speed of the lifting wheel 201 is controlled; if the lifting wheel 201 stalls and falls, the speed regulating assembly 300 can also effectively clamp the lifting wheel 201 to prevent the lifting wheel from rotating, so that the lifting base 203 is prevented from falling to the bottom of the well, and personnel are prevented from being injured.
Example 2
Referring to fig. 1 to 5, a second embodiment of the present invention, which is different from the first embodiment, further includes: the lifting wheel 201 comprises a speed limiting wheel 201a and a winding wheel 201b, the winding wheel 201b is symmetrically arranged on two sides of the speed limiting wheel 201a, and the lifting rope 202 is wound on the winding wheel 201 b.
Compared with the embodiment 1, further, the friction sleeve 201a-1 is arranged on the speed limiting wheel 201a, the inner side of the friction sleeve 201a-1 is fixedly connected to the outer wall of the speed limiting wheel 201a, a plurality of groups of wear-resistant blocks are arranged on the circumference of the outer wall, the whole material of the friction sleeve 201a-1 is made of the wear-resistant material of the existing special automobile brake, the service life of the material is long, consumption required by the use of the lifting wheel 201 can be met, the accommodating grooves 201a-2 are symmetrically arranged on two sides of the friction sleeve 201a-1, a plurality of groups of clamping pieces 201a-3 are rotationally arranged in the accommodating grooves 201a-2, friction force is generated between the side walls of the clamping pieces 201a-3 and the side walls of the accommodating grooves 201a-2, when the lifting wheel 201 is controlled to rotate, the rotation speed is low, the centrifugal force is small, at the moment, the clamping pieces 201a-3 are influenced by the friction force generated between the side walls of the clamping pieces 201a-3 and the side walls of the accommodating grooves 201a-2, the upper surfaces of the clamping pieces 201a-3 are flush with the outer surfaces of the friction sleeve 201a-1, and when the lifting wheel 201 is stalled, the centrifugal force can be fast, and the friction force is smaller than the friction force generated and the clamping pieces 201a-3 and extend out of the accommodating grooves 201 a-2.
Further, the speed regulating rod 301 includes a U-shaped braking member 301a, two ends of the opening of the U-shaped braking member 301a are symmetrically and rotatably connected with a movable member 301b, the other end of the movable member 301b is rotatably connected with a sliding member 301c, and one end of the sliding member 301c far away from the movable member 301b is connected with a handle 301d; the side walls at two ends of the U-shaped braking piece 301a are inserted into the side wall of the central supporting piece 101 and slide in cooperation with the sliding hole position formed in the central supporting piece 101, two ends of the U-shaped opening extend out of the central supporting piece 101 and are connected with the movable piece 301b, the U-shaped groove of the U-shaped braking piece 301a is arranged in the central supporting piece 101, and the lifting wheel 201 is in cooperation with the U-shaped groove to rotate; the constructor can draw the U-shaped braking piece 301a outwards through pulling the handle 301d by hand, when the handle 301d is pulled outwards, the two ends of the U-shaped braking piece 301a slide in the central supporting piece 101, and because of the limitation of the hole site, the movable piece 301b slightly rotates in the pulling process, so that the aim of convenient operation is fulfilled.
The friction blocks 301a-1 and the brake tooth blocks 301a-2 are respectively arranged on the inner wall and the side wall of the U-shaped brake piece 301a, which are close to the bottom of the groove, the inner wall has a shrinkage trend, the general shape is V-shaped, when the rotation speed of the lifting wheel 201 needs to be controlled, a constructor pulls the U-shaped brake piece 301a outwards, the U-shaped groove moves outwards, because of the shrinkage trend, the outer friction block 301a-1 contacts with the friction sleeve 201a-1 firstly, the purpose of deceleration is achieved, when stall condition is met, the clamp piece 201a-3 extends out of the accommodating groove 201a-2 in a rotating way and is higher than the plane where the friction sleeve 201a-1 is located, at the moment, the brake tooth blocks 301a-2 and the clamp piece 201a-3 can be meshed and connected, the brake tooth blocks 301a-2 are impacted by the clamp piece 201a-3, an outwards impact force is generated, the impact force replaces the pulling force of the constructor, the U-shaped brake piece 301a is further driven to move outwards, and the U-shaped groove can clamp the lifting wheel 201 more firmly.
Still further, a sliding column 101a is arranged on the outer wall of one side of the central supporting member 101, a stable telescopic box 101b is arranged on the outer wall of the side opposite to the outer wall, a spring 101a-1 is sleeved on the sliding column 101a, one end of the spring 101a-1 is connected with the outer wall of the central supporting member 101, the other end of the spring is connected with a sliding member 301c, and the sliding member 301c is sleeved on the sliding column 101a in a sliding manner; a stabilizer bar 101b-1 which can be rotatably and telescopically stored is provided in the stabilizer telescopic case 101 b. The spring 101a-1 rebounds when the constructor releases the handle 301d, and the friction sleeve 201a-1 is separated from the friction block 301a-1 to drive the U-shaped braking piece 301a to reset.
After the stall emergency braking, the clamping piece 201a-3 is still in an ejecting state, at the moment, only the U-shaped braking piece 301a needs to be pulled continuously, so that the tooth block at the rear pushes the upper surface of the clamping piece 201a-3 to retract back to the containing groove 201a-2, the material of the contact position between the inner wall of the U-shaped braking piece 301a and the friction sleeve 201a-1 can be an elastic material, the U-shaped braking piece 301a can be pulled outwards conveniently, a spring can also be arranged in the U-shaped braking piece 301a, the friction block 301a-1 is arranged on the spring, the spring is retracted during extrusion, and the spring is reset during release, so that the condition that the clamping piece 201a-3 is reset by pulling the U-shaped braking piece 301a further can be met.
The rest of the structure is the same as that of embodiment 1.
Example 3
Referring to fig. 4 to 6, a third embodiment of the present invention, which is different from the second embodiment, further includes: the edge support 102 includes a first support bar 102a and a second support bar 102b, the second support bar 102b being slidably retractable into the first support bar 102 a; the four corners of the outer wall of the central supporting piece 101 are also provided with angle adjusting blocks 101c, the middle part of each angle adjusting block 101c is provided with a groove for running and rotating, and one end of each second supporting rod 102b extending out of the corresponding first supporting rod 102a is rotatably connected in the corresponding groove of each angle adjusting block 101 c.
1-3, further, a cavity C is arranged in the first supporting rod 102a, the size of the cavity C is matched with that of the second supporting rod 102b, a sliding piece in sliding fit with the second supporting rod 102b is arranged on the inner wall, the second supporting rod 102b can be slidingly accommodated in the cavity C in terms of expansion and contraction of the second supporting rod 102b, a limiting groove 102a-1 is formed in the inner wall of the first supporting rod 102a, a limiting block 102a-2 is connected in the limiting groove 102a-1 in a matched sliding manner, and a rotating hole 102a-1a is formed in the middle of the limiting groove 102 a-1; one side of the limiting block 102a-2, which is close to the cavity C, is provided with a first tooth block 102a-2a, the middle part of the other side is rotationally connected with a worm 102a-2b, and the worm 102a-2b is in threaded connection with the rotating hole 102a-1a; the worm 102a-2b is rotated to push the limiting block 102a-2 to move inwards, a second tooth block 102b-1 is further arranged on the side wall of one side of the second supporting rod 102b, which is close to the limiting groove 102a-1, and when the limiting block 102a-2 moves to a certain position, the first tooth block 102a-2a is in meshed connection with the second tooth block 102b-1, so that the second supporting rod 102b is fixedly clamped at a required position; when the device is used, the edge support 102 is opened outwards according to the field requirement, the middle part of the device can be folded again after the work is completed, and the device is fixed again by using a fixing belt and the like, so that the occupied space is effectively reduced, and the device is convenient to transport and carry.
The lifting base 203 top is provided with the suspension rod 203a, and lifting rope 202 and suspension rod 203a swing joint can set up a set of couple on lifting rope 202, hangs suspension rod 203a directly on the couple, easy to assemble and dismantlement, and stabilizing hole 203b has been seted up to lifting base 203 bottom.
The bottom end of the stabilizing rod 101b-1 is fixedly connected with a first stabilizing block 101b-1a and a second stabilizing block 101b-1b, the shapes of the first stabilizing block 101b-1a and the second stabilizing block 101b-1b can be set to be special shapes, the first stabilizing block 101b-1a can pass through the stabilizing hole 203b in a matching way, and the distance between the first stabilizing block 101b-1a and the second stabilizing block 101b-1b is equal to the thickness of the bottom end wall body of the lifting base 203; the bottom end wall body of the lifting base 203 can be stably clamped between the first stabilizing block 101b-1a and the second stabilizing block 101b-1b by rotating the stabilizing rod 101 b-1; the stabilizer bar 101b-1 and the symmetrically arranged lifting ropes 202 form an isosceles triangle shape, and the lifting ropes 202 do not have direct supporting and stabilizing effects, so that the stability of the lifting base 203 in the up-and-down running process can be ensured by matching with the stabilizer bar 101b-1.
The L-shaped rocker 201c is connected to the side wall of one end of the lifting wheel 201, the L-shaped rocker 201c can control the lifting wheel 201 to rotate, the L-shaped rocker 201c can greatly save the physical strength of constructors, and the lifting speed can be flexibly adjusted through hand-operated rotation, so that the lifting wheel is convenient to cope with the field environment.
The rest of the structure is the same as that of embodiment 2.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a cable shaft heavy object lifts by crane anti-falling device which characterized in that: comprising the steps of (a) a step of,
the support assembly (100) comprises a central support (101) and edge supports (102), wherein one end of the central support (101) is open, the other end of the central support is closed, a containing cavity (O) is formed in the central support, and a plurality of groups of the edge supports (102) are arranged and connected to the outer wall of the central support (101);
the lifting assembly (200) comprises a lifting wheel (201), a lifting rope (202) and a lifting base (203), wherein the lifting wheel (201) is in rolling connection with the accommodating cavity (O), the lifting rope (202) is symmetrically wound on the lifting wheel (201), one end of the lifting rope is fixedly connected to the lifting wheel (201), the other end of the lifting rope is connected with the lifting base (203), and the lifting base (203) can be controlled to ascend and descend through the lifting wheel (201);
the speed regulating assembly (300) comprises a speed regulating rod (301), wherein the speed regulating rod (301) is inserted into the central supporting piece (101) and is movably connected with the lifting wheel (201).
2. The cable pit weight lifting and anti-falling device according to claim 1, wherein: the hoisting wheel (201) comprises a speed limiting wheel (201 a) and winding wheels (201 b), the winding wheels (201 b) are symmetrically arranged on two sides of the speed limiting wheel (201 a), and the hoisting rope (202) is wound on the winding wheels (201 b).
3. The cable pit weight lifting and anti-falling device according to claim 2, wherein: be provided with friction sleeve (201 a-1) on speed limiting wheel (201 a), holding tank (201 a-2) have been seted up to friction sleeve (201 a-1) bilateral symmetry, holding tank (201 a-2) rotation is provided with multiunit fastener (201 a-3), frictional force can be produced between fastener (201 a-3) lateral wall and holding tank (201 a-2) lateral wall, and when frictional force is less than centrifugal force that speed limiting wheel (201 a) rotated and produces, fastener (201 a-3) can stretch out from holding tank (201 a-2).
4. A cable pit weight lifting fall arrest device according to claim 3, wherein: the speed regulating rod (301) comprises a U-shaped braking piece (301 a), two ends of an opening of the U-shaped braking piece (301 a) are symmetrically connected with a movable piece (301 b) in a rotating mode, the other end of the movable piece (301 b) is connected with a sliding piece (301 c) in a rotating mode, and one end, far away from the movable piece (301 b), of the sliding piece (301 c) is connected with a handle (301 d);
the side walls at two ends of the U-shaped braking piece (301 a) are inserted into the side walls of the central supporting piece (101), two ends of the U-shaped opening extend out of the central supporting piece (101) and are connected with the movable piece (301 b), a U-shaped groove of the U-shaped braking piece (301 a) is arranged in the central supporting piece (101), and the lifting wheel (201) is matched with the U-shaped groove to rotate;
the U-shaped braking piece (301 a) is provided with a friction block (301 a-1) and a braking tooth block (301 a-2) on the inner wall and the side wall close to the bottom of the groove respectively, the friction block (301 a-1) is movably connected with the friction sleeve (201 a-1), and the braking tooth block (301 a-2) is movably engaged and connected with the clamping piece (201 a-3).
5. The cable pit weight lifting and anti-falling device according to claim 4, wherein: a sliding column (101 a) is arranged on the outer wall of one side of the central supporting piece (101), a stable telescopic box (101 b) is arranged on the outer wall of the side opposite to the outer wall, a spring (101 a-1) is sleeved on the sliding column (101 a), one end of the spring (101 a-1) is connected with the outer wall of the central supporting piece (101), the other end of the spring is connected with a sliding piece (301 c), and the sliding piece (301 c) is sleeved on the sliding column (101 a) in a sliding mode;
a stabilizer bar (101 b-1) which can be rotatably, telescopically and stored is arranged in the stabilizer telescopic box (101 b).
6. The cable pit weight lifting and falling prevention device according to any one of claims 1 to 5, wherein: the edge support (102) comprises a first support rod (102 a) and a second support rod (102 b), wherein the second support rod (102 b) can be slidably contracted into the first support rod (102 a);
the four corners of the outer wall of the center support piece (101) are also provided with angle adjusting blocks (101 c), and one end, extending out of the first support rod (102 a), of the second support rod (102 b) is rotatably connected in the angle adjusting blocks (101 c).
7. The cable pit weight lifting and anti-falling device of claim 6, wherein: a cavity (C) is formed in the first supporting rod (102 a), the second supporting rod (102 b) can be accommodated in the cavity (C) in a matched mode, a limiting groove (102 a-1) is formed in the inner wall of the first supporting rod (102 a), a limiting block (102 a-2) is connected in the limiting groove (102 a-1) in a sliding mode, and a rotating hole (102 a-1 a) is formed in the middle of the limiting groove (102 a-1);
a first tooth block (102 a-2 a) is arranged on one side, close to the cavity (C), of the limiting block (102 a-2), a worm (102 a-2 b) is rotatably connected to the middle of the other side, and the worm (102 a-2 b) is in threaded connection with the rotating hole (102 a-1 a);
the side wall of the second support rod (102 b) close to the limiting groove (102 a-1) is provided with a second tooth block (102 b-1), and the first tooth block (102 a-2 a) is connected with the second tooth block (102 b-1) in a meshed mode.
8. The cable pit weight lifting and falling prevention device according to any one of claims 1, 2, 3, 4, 5 and 7, wherein: the lifting base (203) top is provided with hanging rod (203 a), lifting rope (202) and hanging rod (203 a) swing joint, stabilizing hole (203 b) have been seted up to lifting base (203) bottom.
9. The cable pit weight lifting and anti-falling device according to claim 5, wherein: the bottom end of the stabilizer bar (101 b-1) is fixedly connected with a first stabilizer block (101 b-1 a) and a second stabilizer block (101 b-1 b), the first stabilizer block (101 b-1 a) can pass through the stabilizer hole (203 b) in a matched mode, and the distance between the first stabilizer block (101 b-1 a) and the second stabilizer block (101 b-1 b) is equal to the thickness of the bottom end wall body of the lifting base (203);
the stabilizer bar (101 b-1) and the symmetrically arranged lifting ropes (202) form an isosceles triangle shape.
10. The cable well weight lifting and anti-falling device according to any one of claims 1, 2, 3, 4, 5, 7 and 9, wherein: an L-shaped rocker (201 c) is connected to one end side wall of the lifting wheel (201), and the L-shaped rocker (201 c) can control the lifting wheel (201) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310338805.6A CN116462120A (en) | 2023-03-31 | 2023-03-31 | Cable shaft heavy object lifts by crane anti-falling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310338805.6A CN116462120A (en) | 2023-03-31 | 2023-03-31 | Cable shaft heavy object lifts by crane anti-falling device |
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| Publication Number | Publication Date |
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| CN116462120A true CN116462120A (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310338805.6A Pending CN116462120A (en) | 2023-03-31 | 2023-03-31 | Cable shaft heavy object lifts by crane anti-falling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118065381A (en) * | 2024-04-18 | 2024-05-24 | 中铁建电气化局集团第三工程有限公司 | Prefabricated assembled cable well construction device and construction method thereof |
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- 2023-03-31 CN CN202310338805.6A patent/CN116462120A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118065381A (en) * | 2024-04-18 | 2024-05-24 | 中铁建电气化局集团第三工程有限公司 | Prefabricated assembled cable well construction device and construction method thereof |
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