CN110498344B - Method for controlling random break point self-locking of same steel wire and safety device thereof - Google Patents
Method for controlling random break point self-locking of same steel wire and safety device thereof Download PDFInfo
- Publication number
- CN110498344B CN110498344B CN201810534769.XA CN201810534769A CN110498344B CN 110498344 B CN110498344 B CN 110498344B CN 201810534769 A CN201810534769 A CN 201810534769A CN 110498344 B CN110498344 B CN 110498344B
- Authority
- CN
- China
- Prior art keywords
- steel wire
- locking
- lifting
- control structure
- locker
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 206
- 239000010959 steel Substances 0.000 title claims abstract description 206
- 238000000034 method Methods 0.000 title abstract description 18
- 230000002457 bidirectional effect Effects 0.000 claims description 21
- 230000001174 ascending effect Effects 0.000 claims description 15
- 230000005484 gravity Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/20—Control systems or devices for non-electric drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/02—Safety gear for retaining load-engaging elements in the event of rope or cable breakage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to a method for controlling random breakpoint self-locking of the same steel wire and a safety device thereof, wherein the method is characterized in that a steel wire locker is arranged on a lifting steel wire, the steel wire locker is arranged on a fixed position of a lifting object, the lifting steel wire is divided into a lifting section steel wire and a descending section steel wire by the steel wire locker, when the lifting section steel wire is in a non-tensioning state or deviates from the original position, the steel wire locker automatically locks the descending section steel wire, otherwise, when the descending section steel wire is in the non-tensioning state or deviates from the original position, the steel wire locker automatically locks the lifting section steel wire, so that the lifting control method with a safe anti-falling function is realized. According to the invention, the other section of steel wire can be automatically locked after the steel wire is broken at any position through the same lifting steel wire, so that the lifting object is effectively prevented from falling, and the potential safety hazard is avoided.
Description
Technical Field
The invention relates to a safety control method for preventing a suspended object of a lifter from falling and a safety controller structure thereof, belonging to the field of mechanical engineering safety structures.
Background
At present, in a lifter realizing lifting function through extending and rolling steel wires, the lifting safety control measure is usually realized by separating a plurality of steel wires, so that one steel wire is prevented from being broken, and the other steel wire is used as a standby scheme for safety guarantee.
Disclosure of Invention
The invention aims to solve the technical problem of anti-falling safety of a hanging object of lifting equipment, and particularly provides a safety control method for preventing the falling of the hanging object of a lifter and a self-locking lifting safety device thereof, which are embodied in the operation of the same steel wire, so that a single steel wire can hang the hanging object and lock the hanging object on the lifting steel wire under any break point in the lifting process, thereby ensuring that the hanging object cannot fall.
The method for achieving the aim of the invention is as follows: the lifting steel wire is provided with a steel wire locker which is arranged at a fixed position of a lifting object, the steel wire locker enables the lifting steel wire to be divided into a lifting section steel wire and a descending section steel wire, when the lifting section steel wire is in a non-tensioning state or deviates from the original position, the steel wire locker automatically locks the descending section steel wire, otherwise, when the descending section steel wire is in a non-tensioning state or deviates from the original position, the steel wire locker automatically locks the lifting section steel wire, so that the lifting control method with a safe anti-falling function is realized.
The self-locking safety device for realizing any break point of the same steel wire in the control method comprises a fixing piece, a lifting steel wire, a double locking device, a pulley and the like, wherein the lifting steel wire is arranged on the fixing piece, penetrates through the double locking device, and is divided into a lifting section steel wire and a descending section steel wire when the steel wire rope is applied to a sliding wheel structure; the double locking device comprises a locking mechanism and a limiting controller, wherein the locking mechanism is a locker for locking the lifting steel wire; the limiting controller is a controller for controlling the locking or unlocking state of the locking mechanism; when the locking mechanism is applied, the limiting controller controls the locking mechanism to automatically lock the ascending section steel wire when the descending section steel wire is in a non-tensioning state or deviates from the original position; when the ascending section steel wire is in a non-tensioning state or deviates from the original position, the limiting controller controls the locking mechanism to automatically lock the descending section steel wire, so that the lifter has a safety anti-falling protection function.
Further, the locking mechanism consists of two unidirectional locking devices, the two unidirectional locking devices are arranged on the fixed body in a straight line in opposite directions, and the lifting steel wire is used for penetrating through the two unidirectional locking devices.
Further, the unidirectional locker comprises a cylindrical shell, a spring and pushing locking heads, the pushing locking heads and the spring are arranged in the cylindrical shell, through holes are formed in two ends of the cylindrical shell, the spring is arranged on the inner side of the pushing locking heads, the pushing locking heads extend out of the cylindrical shell through the through holes, the pushing locking heads are conical bodies formed by more than two locking blocks, the corresponding positions of the matching positions of the locking blocks are provided with arc surfaces, the arc surfaces enable the locking blocks to form locking holes at the positions of the through holes of the cylindrical shell, and the locking holes automatically clamp lifting steel wires to lock under the action of pushing the locking blocks by the spring or automatically loosen the lifting steel wires to realize lifting functions under the action of pushing the locking blocks by a limiting controller.
Further, the unidirectional locker is a steel wire unidirectional locker.
Further, the arc-shaped surface of the locking block is in a thread shape.
Further, the limiting controller comprises a first control structure and a second control structure, the first control structure and the second control structure are respectively two rotating blocks which are installed in a staggered swing mode on the position of the bidirectional locking device, one end of the first control structure and one end of the second control structure are respectively located at the positions of the lifting steel wire inlets and outlets on two sides of the locking mechanism, and the other end of the second control structure is respectively located at the position of the other side of the opposite position of the locking mechanism, so that the first control structure and the second control structure are in staggered swing control.
Further, the bidirectional locking device is mounted on a fixing piece (such as a commonly called lifting hanging scaffold) through a fixing block, grooves for mounting a first control structure and a second control structure are formed in the fixing block, protruding arc-shaped blocks are arranged at the lower ends of the first control structure and the second control structure, and the first control structure and the second control structure are respectively mounted on the grooves through the protruding arc-shaped blocks in a rotating mode to form two rotating blocks which are mutually intersected and oppositely swung.
Further, the rotating block is S-shaped, Z-shaped or T-shaped
Furthermore, one end of the first control structure and one end of the second control structure are provided with lifting steel wire guide wheels, and the other ends of the first control structure and the second control structure are provided with positioning grooves for positioning lifting steel wires.
Furthermore, a sliding wheel is arranged below the controller guide wheel, the sliding wheel is positioned at the front and rear positions of the locking mechanism and is arranged on the fixing piece, and the sliding wheel is positioned at the inner side of the controller guide wheel, so that the lifting steel wires are distributed in a trapezoid shape between the guide wheels on the first control structure and the second control structure and the sliding wheel.
Further, the fixing part is a fixing body for driving the hanging object to lift, and can also be said to be a fitting for driving the connecting hanging object to lift, commonly called a hanging scaffold.
Further, the fixed body is a lifting hanging scaffold, and one or more sliding wheels are arranged on the fixed body.
The invention has the beneficial effects that:
1. The invention discloses a lifting control method, which comprises the steps that a steel wire locker is arranged on a lifting steel wire and is arranged at a fixed position of a lifting object, the steel wire locker enables the lifting steel wire to be divided into a lifting section steel wire and a descending section steel wire, when the lifting section steel wire is in a non-tensioning state or deviates from a original position, the steel wire locker automatically locks the descending section steel wire, otherwise, when the descending section steel wire is in a non-tensioning state or deviates from the original position, the steel wire locker automatically locks the lifting section steel wire, so that the lifting control method with the anti-falling safety protection function of a hanging object is realized. Therefore, the invention can realize that the other section of steel wire can be automatically locked after the steel wire is broken at any position through the same lifting steel wire, thereby effectively preventing the lifting object from falling and avoiding potential safety hazards.
2. The invention relates to a self-locking safety device for any break point of the same steel wire, which comprises a fixing piece, a lifting steel wire and a bidirectional locking device, wherein the lifting steel wire is arranged on the fixing piece, penetrates through the bidirectional locking device and is applied to a sliding wheel structure, so that the lifting steel wire is divided into a lifting section steel wire and a descending section steel wire; the bidirectional locking device comprises a locking mechanism and a limiting controller, wherein the locking mechanism is a locker for locking the lifting steel wire; the limiting controller is a controller for controlling the locking state of the locking mechanism; when the locking mechanism is applied, the limiting controller controls the locking mechanism to automatically lock the ascending section steel wire when the descending section steel wire is in a non-tensioning state or deviates from the original position; when the ascending section steel wire is in a non-tensioning state or deviates from the original position, the limiting controller controls the locking mechanism to automatically lock the descending section steel wire, so that the lifter has the anti-falling safety protection function of the suspended object. Therefore, the lifting safety protection device has a simple structure and low manufacturing cost, lifting safety protection measures can be realized on the same lifting steel wire, and the lifting steel wire is automatically locked at a high speed when any position of the lifting steel wire breaks, so that the potential safety hazard of falling of a suspended object is better avoided.
3. The locking mechanism of the invention consists of two unidirectional locking devices which are fixed on the fixed body in a straight line in opposite directions, and the lifting steel wire penetrates through the two unidirectional locking devices, so that the locking mechanism has a simple structure, can realize the extremely-fast automatic locking of the lifting steel wire when the lifting steel wire breaks at any position, and better ensures the use safety performance of lifting equipment.
4. One end of the first control structure and one end of the second control structure are provided with guide wheels for lifting steel wires, the other end of the first control structure and the second control structure are provided with positioning grooves for positioning the lifting steel wires and pushing locking heads for locking holes, the positioning grooves and the pushing locking heads and the sliding wheels on the fixing pieces form the same horizontal position, and the lifting steel wires are distributed in a trapezoid shape between the two guide wheels and the sliding wheels on the first control structure and the second control structure. Therefore, the sliding performance of the lifting steel wire on the lifter can be effectively guided, the other section of lifting steel wire can be automatically and quickly locked when the lifting steel wire breaks at any position, and the safety protection performance of lifting equipment is improved.
5. The bidirectional locking device is arranged on a fixed piece through a fixed block, grooves for installing a first control structure and a second control structure are formed in the fixed block, protruding arc-shaped blocks are arranged at the lower ends of the first control structure and the second control structure, and the first control structure and the second control structure are respectively arranged on the grooves through the protruding arc-shaped blocks in a rotating mode to form two rotating blocks which are mutually intersected and oppositely swung. Therefore, the structure is simple and reasonable, the first control structure and the second control structure can swing on the locking mechanism better, and the locking function of the locking mechanism can be controlled better.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a use state diagram of the present invention.
Fig. 3 is a schematic view of the unidirectional locker of the present invention.
Fig. 4 is a side view (enlarged) of fig. 3.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The safety control method for the lifter is as shown in fig. 1 to 4, wherein a steel wire locker is arranged on a lifting steel wire, the steel wire locker is arranged on a fixed position of a lifting object, the lifting steel wire is divided into a lifting section steel wire and a descending section steel wire by the steel wire locker, when the lifting section steel wire is in a non-tensioning state or deviates from a original position, the descending section steel wire is automatically locked by the steel wire locker, otherwise, when the descending section steel wire is in a non-tensioning state or deviates from the original position, the lifting section steel wire is automatically locked by the steel wire locker, so that the lifting control method with a safety protection function is realized.
Specifically, the steel wire locker is of a double-head unidirectional wire running and reverse locking structure, the lifting steel wire passes through the steel wire locker on the fixed position of the lifting hanging scaffold hook arranged on the steel wire locker to form a double-steel wire rope hanging state, the steel wire locker divides the lifting steel wire into a lifting section steel wire and a falling section steel wire (namely a winding and unwinding section and a fixed section) under the structure state of a sliding wheel, when the lifting section steel wire is in a non-vertical tensioning state, the steel wire locker automatically locks the falling section steel wire, otherwise, when the falling section steel wire is in a non-vertical tensioning state, the steel wire locker automatically locks the lifting section steel wire,
The self-locking safety device for any break point of the same steel wire in the control method comprises a fixing piece 1, a lifting steel wire 2 and a bidirectional locking device 3, wherein the lifting steel wire 2 and the bidirectional locking device 3 are arranged on the fixing piece 1, the fixing piece 1 is a fixing body for driving a suspended object to lift, and the lifting steel wire 2 penetrates through the bidirectional locking device 3 so that the lifting steel wire 2 is divided into a lifting section steel wire 21 and a descending section steel wire 22; the bidirectional locking device 3 comprises a locking mechanism 31 and a limiting controller 32, wherein the locking mechanism 31 is a locker for locking the lifting steel wire 2; the limiting controller 32 is a controller for controlling the locking or unlocking state of the locking mechanism 31; when the device is applied, the limiting controller 32 controls the locking mechanism 31 to automatically lock the ascending section steel wire 21 when the descending section steel wire 22 is in a non-tensioned state or deviates from the original position; when the ascending wire 21 is in a non-tensioned state or is deviated from the original position, the limit controller 32 controls the locking mechanism 31 to automatically lock the descending wire 22, thereby providing the elevator with a safety protection function.
The locking mechanism 31 is composed of two unidirectional locking devices 311, the two unidirectional locking devices 311 are arranged on the fixed body 1 in a straight line in opposite directions, and the lifting steel wire 2 penetrates through the two unidirectional locking devices 311. Specifically, the two unidirectional lockers 311 are installed on the fixed body 1 in opposite directions, so that when a fracture phenomenon occurs in the ascending section steel wire 21 or the descending section steel wire 22 of the lifting steel wire 2, the unidirectional lockers 311 can automatically lock the other ascending section steel wire 21 or the descending section steel wire 22 which is not fractured, namely, when the fracture phenomenon occurs in the ascending section steel wire 21, the unidirectional lockers 311 can automatically lock the descending section steel wire 22, otherwise, when the fracture phenomenon occurs in the descending section steel wire 22, the unidirectional lockers 311 can automatically lock the ascending section steel wire 21, so that the lifter cannot fracture due to the lifting steel wire, and an accident is caused by falling of an object.
Specifically, the unidirectional locker 311 is composed of a cylindrical casing 3111, a spring 3112 and a pushing locking head 3113, the pushing locking head 3113 and the spring 3112 are disposed in the cylindrical casing 3111, through holes 3114 are disposed at two ends of the cylindrical casing 3111, the spring 3112 is disposed inside the pushing locking head 3113, the pushing locking head 3113 extends out of the cylindrical casing 3111 through the through holes 3114, the pushing locking head 3113 is a conical body composed of more than two locking blocks 3115, the conical body extends out of the through holes 3114 to form a cylinder, for making the pushing locking head 3113 have a good telescopic tightening or loosening function in the through holes 3114, the inner wall of the through holes 3114 is inclined with the outer side of the conical body correspondingly, an arc-shaped surface 3116 is disposed at a corresponding position between the locking blocks 3115, the arc-shaped surface 3116 makes each locking block 3115 form a locking hole 3117 at the position of the through hole 3114 of the cylindrical casing 3111, the locking hole 3117 automatically clamps the pushing and the locking head 3112 under the action of the spring 3112 or automatically clamps the controller 3112 under the action of limiting the controller 3115, and the pushing and the locking head 3112 is better to realize the locking or loosening and loosening of the wire-shaped body by the pushing locking head 3114, and the wire-pushing mechanism 3114 is better, and the wire-pushing body 3112 is better the wire-pushing and the wire-pushing body is in the wire-pushing body 3112 to be fastened to be pulled by the locking body by the locking device 3114.
The limiting controller 32 includes a first control structure 321 and a second control structure 322, the first control structure 321 and the second control structure 322 are respectively two rotating blocks installed in a staggered swing manner in the middle position of the bidirectional locking device 3, one end of the first control structure 321 and one end of the second control structure 322 are respectively located at the positions of the lifting steel wires 2 on two sides of the locking mechanism 31, and the other end of the second control structure 322 is respectively located at the other side of the opposite positions of the locking mechanism 31, so that the first control structure 321 and the second control structure 322 are in staggered swing control.
In order to make the structure more compact and reasonable, the bidirectional locking device 3 is mounted on the fixing piece 1 through a fixing block 4, the fixing block 4 is provided with a groove 41 for mounting a first control structure 321 and a second control structure 322, the lower ends of the first control structure 321 and the second control structure 322 are provided with a convex arc block 5, the first control structure 321 and the second control structure 322 are respectively mounted on the groove 41 through rotation of the convex arc block 5, two mutually-intersected and opposite swinging rotating blocks are formed, and the rotating blocks are S-shaped, Z-shaped or T-shaped.
To increase the sliding and guiding performance of the lifting steel wire 2, one end of the first control structure 321 and one end of the second control structure 322 are provided with a lifting steel wire guide wheel 323, and the other end is provided with a positioning groove 324 for positioning the lifting steel wire, so that the lifting steel wire 2 can stably enter the locking hole 3117 of the unidirectional locker 311. In order to further improve the performance of the bidirectional locking device 3 of the lifter by passing through the lifter by the lifting wire 2, a sliding wheel 325 is arranged below the guide wheel 323, the sliding wheel 325 is positioned at the front and rear positions of the locking mechanism 31, the sliding surface at the lower end of the sliding wheel 325 is flush with the locking hole 3117 and is arranged on the fixed part 1, the sliding wheel 325 is positioned at the inner side position of the guide wheel 323, so that the lifting wire 2 is distributed in a trapezoid between the two guide wheels 323 on the first control structure 321 and the second control structure 323 and the sliding wheel 325, thereby the guide wheel 323 is pressed by the lifting wire 2 better, the locking block 3115 is pressed by the guide wheel 323 in the lifting wire 2, the locking hole 3115 is retracted into the cylindrical shell 3111, at this time, the lifting wire 2 is free to slide in the locking hole 3117, thereby a good lifting function is realized, when a fracture phenomenon occurs in the lifting wire 21, the pushing locking head 3113 pressing the locking block 3115 automatically locks the descending wire 22 under the action of the spring 3112, and accordingly, when the fracture phenomenon occurs in the descending wire 22, the falling wire 3112 automatically, the falling off of the lifting wire is prevented from the lifting wire 3112, and the falling down device is prevented from being broken by the action of the spring body, which causes the falling of the lifting wire 3112.
Further, the limiting controller 32 forms natural vertical direction through the gravity action of the suspended object of the lifting steel wire 2, and presents a tightening state, and the guide wheels at the first port and the second port of the control structure are respectively pressed to enable the locking mechanism 31 to be in a wire running state, when the lifting steel wire 2 is in a non-vertical tightening state, the pressing force of the lifting steel wire 2 is eliminated, and the spring 3112 corresponding to the limiting controller 32 of the locking mechanism 31 pushes the pushing locking head to lock the lifting steel wire 2 to form a protection state.
In another embodiment of the present invention, the unidirectional locker 311 may be a steel wire unidirectional locker.
When the lifting steel wire 2 is used, the guide wheel 323 on one end of the first 321 of the control structure on one side of the bidirectional locking device 3 is guided by the guide wheel 325 on the other side of the locking mechanism 31 to enter the locking hole 3117 of the locking mechanism 31, the guide wheel 323 on one end of the second 322 of the corresponding upper control structure is guided by the guide wheel 325 on the other side of the locking mechanism 31, under lifting stress of the lifter, the lifting steel wire 2 is pressed on the guide wheel 323 because the guide wheel 325 is arranged on the inner side of the guide wheel 323 (that is, the interval between the two guide wheels 325 is smaller than the interval between the two guide wheels 323 by about 5-25 mm), so that the first 321 and the second 322 of the control structure push the pushing locking heads 3113 of the two opposite unidirectional locking devices 311 to retract into the cylindrical shell 3111 of the unidirectional locking devices 311, and thus the locking holes 3117 formed by the locking blocks 3115 in the pushing locking heads 3113 are opened, and therefore, when the first 321 and the second 322 of the control structure simultaneously opens the locking holes 3117 of the two unidirectional locking devices 311, the lifting steel wire 2 can move back and forth on the locking holes 3117 (that can also be said that the lifter can slide back and forth on the lifting steel wire 2).
When a breakage phenomenon occurs in the ascending section steel wire 21 or the descending section steel wire 22 (i.e., any position of the lifting steel wire), one end of the broken lifting steel wire 2 is not pressurized by the guide wheel 323 correspondingly limiting the controller 32 (the first control structure 321 or the second control structure 322), so that the other end of the first control structure 321 or the second control structure 322 is separated from the pushing locking head 3113 of the unidirectional locker 311, the pushing locking head 3113 pushes each locking block 3115 under the action of the spring 3112 and the through holes 3114 at two ends of the cylindrical housing 3111, and the locking holes 3117 formed by each locking block 3115 in the pushing locking head 3113 become smaller to tighten the lifting steel wire 2.
Specifically, when a fracture phenomenon occurs in any position of the descending section steel wire 22 of the lifting steel wire 2, the guide wheel 323 of one end of the broken lifting steel wire 2 corresponding to the first 321 of the control structure is not pressed by the lifting steel wire 2, so that the other end of the first 321 of the control structure leaves the pushing locking head 3113 of the one-way locker 311, the pushing locking head 3113 pushes each locking block 3115 under the action of the spring 3112 and the through holes 3114 at two ends of the cylindrical shell 3111, and the locking holes 3117 formed by each locking block 3115 in the pushing locking head 3113 become smaller to tighten one end of the unbroken ascending section steel wire 21 in the lifting steel wire 2, so that the lifter cannot break due to the lifting steel wire, and an accident is caused by falling of an object. Similarly, when a breakage phenomenon occurs in any position of the rising section steel wire 21 of the lifting steel wire 2, the guide wheel 323 of one end of the broken lifting steel wire 2 corresponding to the second control structure 322 is not pressed by the lifting steel wire 2, so that the other end of the second control structure 322 leaves the pushing locking head 3113 of the other unidirectional locker 311, and the pushing locking head 3113 pushes each locking block 3115 under the action of the spring 3112 and the through holes 3114 at two ends of the cylindrical housing 3111, so that the locking hole 3117 formed by each locking block 3115 in the pushing locking head 3113 becomes smaller to tighten one end of the unbroken rising section steel wire 21 in the lifting steel wire 2. Therefore, no matter the ascending section steel wire 21 and the descending section steel wire 22 are broken at any position, the lifter cannot fall down, and accidents are avoided.
When the self-locking safety device is used, the self-locking safety device is arranged on the lifter, the hook of the lifter is in a natural vertical tensioning state under the action of gravity of a hung object, the two sections of steel wire ropes on the sliding wheels at two sides of the bidirectional locking device 3 also enable the bidirectional locking device 3 of the self-locking safety device to be in a wire running state (namely, the lifter slides on the lifting steel wires), when one section of the lifting steel wires on the sliding wheels is in a breakpoint, namely, in a non-vertical tensioning state or in a non-stressed tensioning state, the bidirectional locking device 3 at the corresponding position is instantaneously changed into a wire locking state from the wire running state, the lifter hung object is pulled by the other section of the vertically tensioned state or the stressed lifting steel wires, the lifter hung object is prevented from falling, and a safety accident is caused, and the lifting control method with a safety protection function is realized in the process.
Claims (6)
1. The random breakpoint self-locking safety device for the same steel wire is characterized in that: the lifting steel wire (2) penetrates through the bidirectional locking device (3), so that the lifting steel wire (2) is divided into a lifting section steel wire (21) and a descending section steel wire (22);
The bidirectional locking device (3) comprises a locking mechanism (31) and a limiting controller (32), wherein the locking mechanism (31) is a locker for locking the lifting steel wire (2); the limiting controller (32) is a controller for controlling the locking or unlocking state of the locking mechanism (31);
when the locking device is applied, when the descending section steel wire (22) is in a non-tensioning state or deviates from the original position, the limiting controller (32) controls the locking mechanism (31) to automatically lock the ascending section steel wire (21); when the ascending section steel wire (21) is in a non-tensioning state or deviates from the original position, the limiting controller (32) controls the locking mechanism (31) to automatically lock the descending section steel wire (22), so that the lifter has a safety anti-falling function;
The locking mechanism (31) consists of two unidirectional locking devices (311), the two unidirectional locking devices (311) are arranged on the fixing piece (1) in a straight line in opposite directions, and the lifting steel wire (2) penetrates through the two unidirectional locking devices (311);
The unidirectional locker (311) is a lifting steel wire unidirectional locker; the unidirectional locker (311) consists of a cylindrical shell (3111), a spring (3112) and a pushing locking head (3113), the pushing locking head (3113) and the spring (3112) are arranged in the cylindrical shell (3111), through holes (3114) are formed in two ends of the cylindrical shell (3111), the spring (3112) is arranged on the inner side of the pushing locking head (3113), the pushing locking head (3113) extends out of the cylindrical shell (3111) through the through holes (3114), the pushing locking head (3113) is a conical body formed by more than two locking blocks (3115), an arc-shaped surface (3116) is arranged at a corresponding position of the matching position between the locking blocks (3115), the arc-shaped surface (3116) enables the locking blocks (3115) to form locking holes (3117) at the positions of the through holes (3114) of the cylindrical shell (3111), and the locking holes (3117) lock the self-lifting steel wire (2) under the action of the pushing of the spring (3112) to push the locking blocks (3115), or the lifting locking function of the self-lifting locking steel wire (2) under the action of a limiting controller (31132).
2. The same steel wire random breakpoint self-locking safety device according to claim 1, wherein: the limiting controller (32) comprises a first control structure (321) and a second control structure (322), wherein the first control structure (321) and the second control structure (322) are respectively two rotating blocks which are installed in a crossed and swinging mode on the middle position of the bidirectional locking device (3), one end of the first control structure (321) and one end of the second control structure (322) are respectively located at the positions of the lifting steel wires (2) on two sides of the locking mechanism (31) in and out, and the other end of the first control structure is respectively located at the other side of the opposite position of the locking mechanism (31), so that the first control structure (321) and the second control structure (322) are in crossed and swinging control.
3. The same steel wire random breakpoint self-locking safety device according to claim 2, wherein: the bidirectional locking device (3) is arranged on the fixing piece (1) through a fixing block (4), a groove (41) is formed in the fixing block (4), a protruding arc-shaped block (5) is arranged at the lower end of a first control structure (321) and a second control structure (322), and the first control structure (321) and the second control structure (322) are respectively arranged on the groove (41) through rotation of the protruding arc-shaped block (5) to form two rotation blocks which are mutually intersected and oppositely swung.
4. The same steel wire random breakpoint self-locking safety device according to claim 2, wherein: one end of the first control structure (321) and one end of the second control structure (322) are provided with guide wheels (323) for lifting steel wires, and the other end of the first control structure is provided with a positioning groove (324) for positioning the lifting steel wires.
5. The same steel wire random breakpoint self-locking safety device according to claim 4, wherein: the lifting steel wire lifting device is characterized in that a sliding wheel (325) is arranged below the guide wheel (323), the sliding wheel (325) is arranged at the front and rear positions of the locking mechanism (31) and is arranged on the fixing piece (1), and the sliding wheel (325) is arranged at the inner side of the guide wheel (323), so that the lifting steel wire (2) is distributed in a trapezoid shape between the two guide wheels (323) and the sliding wheel (325) on the first control structure (321) and the second control structure (322).
6. The same steel wire random breakpoint self-locking safety device according to claim 1, wherein: the fixing piece (1) is a fixing body for driving the suspended object to lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534769.XA CN110498344B (en) | 2018-05-20 | 2018-05-20 | Method for controlling random break point self-locking of same steel wire and safety device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534769.XA CN110498344B (en) | 2018-05-20 | 2018-05-20 | Method for controlling random break point self-locking of same steel wire and safety device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110498344A CN110498344A (en) | 2019-11-26 |
| CN110498344B true CN110498344B (en) | 2024-07-19 |
Family
ID=68584204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810534769.XA Active CN110498344B (en) | 2018-05-20 | 2018-05-20 | Method for controlling random break point self-locking of same steel wire and safety device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110498344B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201102865Y (en) * | 2007-07-17 | 2008-08-20 | 通州建总集团有限公司 | Anti-breaking safety device for lifting hook |
| CN102145853A (en) * | 2011-04-26 | 2011-08-10 | 安徽金钟机电设备有限公司 | Anti-falling hanging hook of crane |
| CN208234402U (en) * | 2018-05-20 | 2018-12-14 | 广州市震泓科技股份有限公司 | Same steel wire break-point self locking safety device |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1470653A1 (en) * | 1987-02-11 | 1989-04-07 | Одесский Государственный Педагогический Институт Им.К.Ушинского | Safety device for holding load-engaging member with cable hanger |
| ES2024259A6 (en) * | 1990-05-16 | 1992-02-16 | Echt Sa | Safety device for preventing the fall of load-lifting hoppers and the like |
| CN2220459Y (en) * | 1993-11-10 | 1996-02-21 | 杨益文 | Anti-drop lifting trackle |
| CN2199178Y (en) * | 1994-07-11 | 1995-05-31 | 哈尔滨飞机制造公司 | Broken wire fall-preventing device for vertical transport plane |
| JP2001139280A (en) * | 1999-11-16 | 2001-05-22 | Sumitomo Constr Mach Co Ltd | Overload preventing device for construction machine |
| JP4933986B2 (en) * | 2007-08-28 | 2012-05-16 | 株式会社キトー | Fall prevention mechanism and winding device using the same |
| CN101337641A (en) * | 2008-08-14 | 2009-01-07 | 贵州建工集团总公司 | Wire rope breaking protector |
| CN201592953U (en) * | 2009-11-16 | 2010-09-29 | 三一集团有限公司 | Steel wire rope breaking protection device |
| CN201756412U (en) * | 2010-07-15 | 2011-03-09 | 天津起重设备有限公司 | Rope breakage preventing device for hoisting mechanism of crane |
| CN104843587B (en) * | 2014-02-17 | 2017-06-30 | 刘德民 | A kind of crane pulley device with breaking rope protecting anti-falling mechanism |
| CN104003310A (en) * | 2014-05-28 | 2014-08-27 | 河南省第二建设集团有限公司 | Broken rope self-locking device |
| NO339695B1 (en) * | 2016-02-25 | 2017-01-23 | Macgregor Norway As | Line tensioner |
| CN106006350B (en) * | 2016-07-08 | 2019-02-05 | 湖南师范大学 | A kind of retarder and the stepless slow discharge mechanism including the retarder |
| CN206553073U (en) * | 2017-03-21 | 2017-10-13 | 河南华北起重吊钩有限公司 | A kind of Novel hook parachute gear |
| CN206904791U (en) * | 2017-05-31 | 2018-01-19 | 广州市震泓光电科技有限公司 | The lifting lamp of adjustable type power connection equipment |
-
2018
- 2018-05-20 CN CN201810534769.XA patent/CN110498344B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201102865Y (en) * | 2007-07-17 | 2008-08-20 | 通州建总集团有限公司 | Anti-breaking safety device for lifting hook |
| CN102145853A (en) * | 2011-04-26 | 2011-08-10 | 安徽金钟机电设备有限公司 | Anti-falling hanging hook of crane |
| CN208234402U (en) * | 2018-05-20 | 2018-12-14 | 广州市震泓科技股份有限公司 | Same steel wire break-point self locking safety device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110498344A (en) | 2019-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102324710B1 (en) | Fall prevention apparatus | |
| US9388018B2 (en) | Supply of rope to an elevator speed limiter | |
| CN110498344B (en) | Method for controlling random break point self-locking of same steel wire and safety device thereof | |
| US9605838B2 (en) | Safe lighting system using wall mounted lift | |
| CN210884918U (en) | Civil engineering is with fixed knot of high-efficient machine of lifting by crane structure | |
| CN208234402U (en) | Same steel wire break-point self locking safety device | |
| KR100862275B1 (en) | Guided clinbing system for skyscraper construction | |
| CN211691536U (en) | Simple lifting mechanism for bare concrete exterior wall cladding | |
| CN110182666A (en) | A kind of nacelle device of fall arrest | |
| CN216153776U (en) | Lifting device for car stopping fence of underground inclined roadway mine car of coal mine | |
| US2282685A (en) | Cable anchor | |
| CN213870939U (en) | Hoisting steel wire rope lock catch | |
| US3970287A (en) | Guide block for a cable | |
| CN107298358B (en) | Anti-falling safety device | |
| CN106988523B (en) | Sliding pin brake wheel type anti-falling device | |
| CN220148931U (en) | Elevator safety maintenance device | |
| CN217054446U (en) | Safety belt fixing device for electric platform of substation | |
| CN219896829U (en) | Universal anti-falling device for communication tower | |
| KR200220765Y1 (en) | Crane hook attached locking device | |
| CN219546595U (en) | Equipment for lifting workpieces | |
| CN103172002A (en) | Self-lock device used for flexible guide rail | |
| CA1157766A (en) | Wire drum for door | |
| CN216471649U (en) | Movable steel band clamp combination device | |
| CN220226981U (en) | Steel wire rope for tunnel top operation | |
| CN217478801U (en) | Elevator safety system |
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 |