CN111559685B - Top falling prevention device - Google Patents
Top falling prevention device Download PDFInfo
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- CN111559685B CN111559685B CN202010436278.9A CN202010436278A CN111559685B CN 111559685 B CN111559685 B CN 111559685B CN 202010436278 A CN202010436278 A CN 202010436278A CN 111559685 B CN111559685 B CN 111559685B
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- lifting machine
- steel tower
- material lifting
- fixedly connected
- pole
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- 230000002265 prevention Effects 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 148
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 94
- 239000010959 steel Substances 0.000 claims abstract description 94
- 230000003139 buffering effect Effects 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 42
- 238000009434 installation Methods 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 206010057071 Rectal tenesmus Diseases 0.000 description 6
- 208000012271 tenesmus Diseases 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000220317 Rosa Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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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
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a top falling prevention device, and relates to the technical field of safety protection of elevators. Technical scheme is a device falls on scour protection top, including the steel tower frame, material lifting machine is installed to steel tower frame one side, the top of steel tower frame is provided with the buffer who is used for buffering material lifting machine, buffer is including the backup pad that is used for butt material lifting machine top, be connected with a plurality of supporting spring between the upper surface of backup pad and the steel tower frame, supporting spring's both ends difference fixed connection in backup pad and steel tower frame, the top of steel tower frame is the vertical gag lever post of fixedly connected with still, the gag lever post is located outside the range directly over the material lifting machine, and supporting spring cup joints on the gag lever post, the lower extreme of gag lever post passes backup pad and fixedly connected with stopper, and still be provided with the link gear in order to support material lifting machine when the backup pad is. The lifting device is reasonable in structure, and can effectively prevent the falling of the material lifter caused by accidental top rushing when the material lifter ascends.
Description
Technical Field
The invention relates to the technical field of safety protection of elevators, in particular to a top-falling prevention device.
Background
At present, along with the continuous development of economy, can see the building site everywhere, and can use material lifting machine in building, fitment process often, utilize material lifting machine to promote some weights of transport, material lifting machine installs on the steel tower frame to receive and release wire rope in order to control the lift by the hoist engine. When the material hoister is hoisted to the top of the steel tower, the material hoister rigidly collides with the top of the steel tower, so that the stress on the steel wire rope and the reversing wheel is suddenly increased, and the joint of the steel wire rope and the material hoister, the steel wire rope and the reversing wheel are easily broken due to sudden overlarge stress, so that a buffer device is generally designed at the top of the steel tower for buffering.
A novel roof fall prevention device is now proposed.
Disclosure of Invention
The invention aims to provide a top-impact falling prevention device which can prevent a material elevator from accidentally impacting a top to cause falling when the material elevator ascends.
The technical purpose of the invention is realized by the following technical scheme: a top falling prevention device comprises a steel tower frame, a material lifter is arranged on one side of the steel tower frame, the top of the steel tower is provided with a buffer device used for buffering the material hoister, the buffer device comprises a supporting plate used for abutting against the top of the material hoister, a plurality of supporting springs are connected between the upper surface of the supporting plate and the steel tower, two ends of each supporting spring are respectively and fixedly connected with the supporting plate and the steel tower, the top of the steel tower is also fixedly connected with a vertical limiting rod which is positioned outside the range right above the material hoister, the supporting spring is sleeved on the limiting rod, the lower end of the limiting rod penetrates through the supporting plate and is fixedly connected with a limiting block, and a linkage mechanism for supporting the material hoister when the supporting plate is jacked up is further arranged on the steel tower.
Through adopting above-mentioned scheme, the steel tower frame can only set up material lifting machine in one side, also can set up material lifting machine in both sides simultaneously, the steel tower frame can be single tower form also can choose the portal frame form for use, after material lifting machine rises to a take the altitude, material lifting machine's top can the backup pad of jacking, make the backup pad rise thereupon, thereby lead to the supporting spring between backup pad and the steel tower frame to be compressed, the resistance when this moment material lifting machine rises gradually increases, can offset its inertia, accomplish the buffering to material lifting machine, prevent material lifting machine top-flushing, after material lifting machine top-flushing backup pad, set up link gear again in order to support material lifting machine, prevent that material lifting machine from falling this moment, can have a support to material lifting machine, thereby reach the effect that prevents material lifting machine top-flushing and fall.
The invention is further configured to: the steel tower frame is fixedly connected with a plurality of vertical guide rods, the upper side and the lower side of the material hoister are rotatably connected with guide wheels, the guide wheels are respectively connected with two sides of the guide rods in a rolling manner, the linkage mechanism comprises a bending rod driven by the support plate when the support plate ascends, the steel tower frame is fixedly connected with a horizontal installation rod, a bending point of the bending rod is penetrated and rotatably connected onto the installation rod by the installation rod, the upper part of the bending rod is vertically arranged, the lower part of the bending rod is bent towards one side deviating from the material hoister, the upper end of the bending rod faces one side of the material hoister and is attached and fixedly connected with a wedge block, the tip of the wedge block faces downwards, the support plate is slidably connected onto the wedge block back to one side of the bending rod when the support plate ascends, and the lower end of the bending rod faces one side of the material hoister and is fixedly connected with a support block used for supporting the material hoister, still be connected with the restriction lever on the pole of buckling, the restriction lever is located buckle the pole dorsad the material lifting machine one side articulates with luffing motion on the steel tower frame, the lower part of the pole of buckling is provided with the waist type hole that sets up along its length direction, perpendicular fixedly connected with connecting rod on the restriction lever, the connecting rod inserts in the waist type hole, just buckle the upper portion of pole in the connecting rod butt in keep vertical during the upper end in waist type hole, buckle the lower part of pole in the connecting rod butt in keep vertical during the lower extreme in waist type hole.
By adopting the scheme, in the initial state, because the wedge block connected to the upper end of the bending rod is heavier, the upper end of the bending rod inclines towards one side of the material lifting machine, but is limited by the limiting rod at the moment, the connecting rod on the limiting rod is tightly propped against the upper end of the waist-shaped hole, so that the bending rod cannot rotate, the upper part of the bending rod is in a vertical state, the lower part of the bending rod bends towards one side away from the material lifting machine, when the material lifting machine rises and props against the supporting plate, the side edge of the supporting plate props against the inclined plane of one side of the wedge block, which is back to the bending rod, under the guiding action of the inclined plane, so that the upper end of the bending rod is propped against one side of the steel tower frame, the lower end of the bending rod swings towards the material lifting machine, the connecting rod slides in the waist-shaped hole at the moment, so that the supporting block at the lower end of the bending, make the lower extreme of pole of buckling can't be to the pylon side oscillation, at this moment, if material hoist falls in the striking backup pad and the accident, then material hoist can the tenesmus support on the supporting shoe, what the supporting shoe mainly bore is the decurrent gravity of material hoist, the atress of restriction pole and connecting rod is less, guide bar and leading wheel make material hoist can only move in vertical direction, the supporting shoe props material hoist and then can prevent material hoist continuation tenesmus, when the pylon is single tower form, the supporting shoe props material hoist one side, when the pylon is the portal frame, material hoist's both sides all set up the supporting shoe and support.
The invention is further configured to: still be provided with the joint breach on the wedge, the backup pad is in by the joint when jacking in the joint breach.
Through adopting above-mentioned scheme, set up the joint breach on the wedge, the joint breach can block the backup pad after the backup pad rises to the take the altitude to prevent to a certain extent that backup pad and material lifting machine from continuing to rise, prevent to dash the top.
The invention is further configured to: the lower side of the material hoister is fixedly connected with an overhead support, and the material hoister is erected by the overhead support when parked on the ground.
Through adopting above-mentioned scheme, because the ground on the building site is unevenness basically, so set up overhead bracket and make somebody a mere figurehead it when material lifting machine stops on ground.
The invention is further configured to: the utility model discloses a material lifting machine, including buckle pole, connecting rod, limiting rod, material lifting machine, connecting rod butt in perpendicular to during the lower extreme in waist type hole the lower part of pole of buckling, material lifting machine's bottom articulates there is upwards jack-up when the swing the frame-shaped piece of limiting rod, fixedly connected with control lever on the frame-shaped piece, the control lever penetrates in the material lifting machine, just material lifting machine's bottom is provided with the confession the control lever wobbling leads to the groove.
By adopting the above scheme, through the swing control lever in order to drive the swing of frame-shaped spare for the frame-shaped spare is to the swing of restriction lever side, thereby in swing in-process with restriction lever jack-up, make the restriction lever drive the bending lever together swing, make the supporting shoe withdraw from material lifting machine's below, thereby can make things convenient for manual control supporting shoe to withdraw from material lifting machine below when material lifting machine does not fall, can normally descend, prevent that the supporting shoe from causing the influence to material lifting machine's normal decline.
The invention is further configured to: the material hoister is also provided with an anti-falling hand brake mechanism for preventing the material hoister from falling.
The invention is further configured to: prevent weighing down manual brake mechanism includes the brake billet of fixed connection on the steel tower frame, the vertical setting of brake billet, material hoist still rotates outward and is connected with the friction part, be connected with the pin on the friction part and by the pin control is in order to support tightly the brake billet.
Through adopting above-mentioned scheme, when the material lifting machine did not reach steel tower top position and break down, can brake through preventing weighing down manual brake mechanism, remove the pin for the friction part supports tightly on the brake billet, utilizes the frictional force between friction part and the brake billet to move down in order to hinder the material lifting machine, can prevent that the material lifting machine from dropping down fast.
The invention is further configured to: the outer wall fixedly connected with of material elevator articulates the seat, the friction part is including articulating steel overcoat on articulated seat, and fix the clutch blocks in the steel overcoat, the slender pole with the perpendicular fixed connection of articulated arm of steel overcoat stretches into in the material elevator, steel overcoat side is flagging naturally, the side of steel overcoat is obtuse triangle-shaped, the pin joint of steel overcoat is located one of its acute angle end, the hypotenuse side of steel overcoat in pendulum when the slender pole pushes down to the brake billet makes the clutch blocks support tightly on the brake billet.
Through adopting above-mentioned scheme, when the brake, the pin-point is drawn down for the swing of steel overcoat, thereby make steel overcoat and clutch blocks together pendulum to the brake billet, support tightly when the clutch blocks and can brake on the brake billet, if material hoist tenesmus this moment, then because the shape setting of steel overcoat, can make the clutch blocks further support tight brake billet, further improve frictional force, thereby effectively prevent material hoist tenesmus.
In conclusion, the invention has the following beneficial effects: one is capable of effectively preventing the material hoister from directly impacting the top and rigidly impacting the top of the steel tower; the second one can effectively prevent the material lifter from falling when the material lifter moves to the top; and the third step is to effectively prevent the material elevator from falling when the material elevator is in a half-way fault.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is a partial schematic structural view of an embodiment to embody a linkage portion;
FIG. 3 is a partial structural schematic diagram of the embodiment, which is used for embodying the anti-falling hand brake mechanism part.
Reference numerals: 1. a steel tower; 2. a material elevator; 3. a buffer device; 4. a support plate; 5. a support spring; 6. a limiting rod; 7. a limiting block; 8. a linkage mechanism; 9. a guide bar; 10. a guide wheel; 11. a bending rod; 12. mounting a rod; 13. a wedge block; 14. a support block; 15. a restraining bar; 16. a kidney-shaped hole; 17. a connecting rod; 18. clamping the notch; 19. an overhead support; 20. a frame-shaped member; 21. a control lever; 22. a through groove; 23. the anti-falling hand brake mechanism; 24. a brake steel bar; 25. a friction member; 26. a thin rod; 27. a hinged seat; 28. a steel outer sleeve; 29. a friction block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the device for preventing the top from falling comprises a steel tower frame 1, wherein a material hoist 2 is arranged on one side of the steel tower frame 1, the material hoist 2 can be arranged on only one side of the steel tower frame 1, and the material hoist 2 can be arranged on two sides of the steel tower frame; the steel tower frame 1 can be in a single tower shape or a portal frame shape, in the embodiment, the single tower-shaped steel tower frame 1 is selected, and the material lifting machines 2 are arranged on two sides of the steel tower frame 1. Many vertical guide bars 9 of fixedly connected with on steel tower 1, the upper and lower sides of material lifting machine 2 all rotate and are connected with leading wheel 10 to each leading wheel 10 respectively roll connection is in the both sides of guide bar 9, carries out fixed direction to material lifting machine 2 through the cooperation of guide arm and leading wheel 10, makes material lifting machine 2 can go up and down steadily.
Still be provided with buffer 3 that is used for butt material lifting machine 2 in order to cushion at the top of steel tower frame 1, buffer 3 is including the backup pad 4 that is used for butt article lifting machine top, be connected with a plurality of supporting spring 5 between the upper surface of backup pad 4 and the steel tower frame 1, fixed connection is in backup pad 4 and steel tower frame 1 respectively at supporting spring 5's both ends, the vertical gag lever post 6 of fixedly connected with is still gone back at the top of steel tower frame 1, gag lever post 6 is located material lifting machine 2 outside the scope directly over, and supporting spring 5 cup joints the lower extreme that gag lever post 6 passed backup pad 4 and fixedly connected with stopper 7 on gag lever post 6.
When material lifting machine 2 constantly rose, material lifting machine 2 was hit backup pad 4 earlier in order to jack up it upwards for supporting spring 5 is compressed, hinders the power crescent that material lifting machine 2 rose, thereby plays cushioning effect to material lifting machine 2, avoids 2 direct rigidity collisions of material lifting machine 2.
As shown in fig. 2, a linkage mechanism 8 for supporting the material lifter 2 when the supporting plate 4 is jacked up is further disposed on the steel tower frame 1, the linkage mechanism 8 includes a mounting rod 12 fixedly connected to the steel tower frame 1, the mounting rod 12 is horizontally disposed, a bending point of the bending rod 11 is penetrated by the mounting rod 12 and is rotatably connected to the mounting rod 12, an upper portion of the bending rod 11 is vertically disposed in an initial state, a lower portion of the bending rod is bent toward a side away from the material lifter 2, an upper end of the bending rod 11 is attached to and fixedly connected with a wedge 13 toward a side of the material lifter 2, a tip of the wedge 13 faces downward, the supporting plate 4 is slidably connected to a side of the wedge 13 facing away from the bending rod 11 when rising, a side of a lower end of the bending rod 11 facing the material lifter 2 is fixedly connected with a supporting block 14 for supporting the material lifter 2, and a limiting rod 15 is further connected, limiting rod 15 is located and buckles pole 11 and articulates on steel tower 1 dorsad 2 one side of material lifting machine and luffing motion, the lower part of buckling pole 11 is provided with along the waist type hole 16 that its length direction set up, perpendicular fixedly connected with connecting rod 17 on the limiting rod 15, connecting rod 17 inserts in waist type hole 16, the upper portion of buckling pole 11 keeps vertical when connecting rod 17 butt in the upper end in waist type hole 16, the lower part of buckling pole 11 keeps vertical when the lower extreme in waist type hole 16 of connecting rod 17 butt.
In the initial state, since the wedge block 13 connected to the upper end of the bending rod 11 is relatively heavy, the upper end of the bending rod 11 is inclined toward one side of the material lifter 2, but is limited by the limiting rod 15 at this time, the connecting rod 17 on the limiting rod 15 abuts against the upper end of the kidney-shaped hole 16, so that the bending rod 11 cannot rotate, the upper part of the bending rod 11 is in a vertical state, the lower part of the bending rod 11 is bent away from one side of the material lifter 2, when the material lifter 2 rises and abuts against the supporting plate 4, the side edge of the supporting plate 4 abuts against the inclined surface of the wedge block 13, which is away from the bending rod 11, and is guided by the inclined surface, so that the upper end of the bending rod 11 is abutted against one side of the steel tower frame 1, so that the lower end of the bending rod 11 swings toward the material lifter 2, and the connecting rod 17 slides in the kidney-shaped hole 16, so that the supporting block 14 at the, and restriction lever 15 and connecting rod 17 cooperate and prop one side that the lower extreme of pole 11 of buckling dorsad material hoist 2, make the lower extreme of pole 11 of buckling unable normal steel tower frame 1 side swing, at this moment, if material hoist 2 falls in striking backup pad 4 and accident, then material hoist 2 can drop and support on supporting shoe 14, supporting shoe 14 mainly bears the decurrent gravity of material hoist 2, restriction lever 15 and connecting rod 17's atress is less, guide bar 9 and leading wheel 10 make material hoist 2 can only move in vertical direction, supporting shoe 14 props material hoist 2 and then can prevent material hoist 2 from continuing to drop, when steel tower frame 1 is the single tower form, supporting shoe 14 props material hoist 2 one side, when steel tower frame 1 is the portal frame, the both sides of material hoist 2 all set up supporting shoe 14 and support.
Still be provided with joint breach 18 on the wedge 13, backup pad 4 joint is in joint breach 18 when by the jacking, avoids backup pad 4 to rise too much and leads to backup pad 4 and wedge 13 to break away from.
Limiting rod 15 is perpendicular to the lower part of pole 11 of buckling when connecting rod 17 butt in the lower extreme of waist type hole 16, and the bottom of material lifting machine 2 articulates there is the frame-shaped piece 20 that is used for upwards periodic fiber paper pole when swinging, fixedly connected with control on the frame-shaped piece 20, and control lever 21 penetrates in the material lifting machine 2, and the bottom of material lifting machine 2 is provided with the logical groove 22 that supplies the swinging arm wobbling.
The frame-shaped part 20 is driven to swing through the swing control rod 21, the frame-shaped part 20 swings towards the limiting rod 15, the limiting rod 15 is jacked up in the swing process, the limiting rod 15 drives the bending rod 11 to swing together, the supporting block 14 is withdrawn from the lower portion of the material lifting machine 2, the supporting block 14 can be conveniently and manually controlled to be withdrawn from the lower portion of the material lifting machine 2 when the material lifting machine 2 does not fall and can normally descend, and the supporting block 14 is prevented from influencing the normal descending of the material lifting machine 2.
As shown in fig. 3, the material elevator 2 is further provided with a falling prevention hand brake mechanism 23 for preventing falling, the falling prevention hand brake mechanism 23 comprises a brake steel bar 24 fixedly connected to the steel tower frame 1, the brake steel bar 24 is vertically arranged, the material elevator 2 is further rotatably connected with a friction piece 25, and the friction piece 25 is connected with a thin rod 26 and is controlled by the thin rod 26 to abut against the brake steel bar 24. In order to prevent the frame part 20 from bearing against the ground, an overhead support 19 is also fixedly connected to the underside of the material hoist 2, which overhead support 19 supports the material hoist 2 when it is resting on the ground.
Outer wall fixedly connected with of material lifting machine 2 articulates seat 27, friction member 25 is including articulating the steel overcoat 28 on articulated seat 27, and fix the clutch blocks 29 in steel overcoat 28, the hinge bar of slender pole 26 and steel overcoat 28 is perpendicular fixed connection and stretches into in material lifting machine 2, steel overcoat 28 side hangs down naturally, the side of steel overcoat 28 is obtuse triangle-shaped, the pin joint of steel overcoat 28 is located one of its acute angle end, the minor flank of steel overcoat 28 pendulum to brake billet 24 and make clutch blocks 29 support tightly on brake billet 24 when slender pole 26 pushes down.
When the brake, lower draw pin 26 for steel overcoat 28 swings, thereby makes steel overcoat 28 and clutch blocks 29 together swing to brake billet 24, supports tightly to brake billet 24 when clutch blocks 29 and can brake, if material lifting machine 2 tenesmus this moment, then because the shape setting of steel overcoat 28, can make clutch blocks 29 further support tight brake billet 24, further improves frictional force, thereby effectively prevents material lifting machine 2 tenesmus.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a device falls in scour protection top, includes steel tower (1), material lifting machine (2), its characterized in that are installed to steel tower (1) one side: the top of the steel tower frame (1) is provided with a buffer device (3) used for buffering the material hoister (2), the buffer device (3) comprises a support plate (4) used for abutting against the top of the material hoister (2), a plurality of support springs (5) are connected between the upper surface of the support plate (4) and the steel tower frame (1), two ends of each support spring (5) are fixedly connected to the support plate (4) and the steel tower frame (1) respectively, a vertical limiting rod (6) is fixedly connected to the top of the steel tower frame (1), the limiting rod (6) is located outside the range right above the material hoister (2), the support springs (5) are sleeved on the limiting rods (6), and the lower ends of the limiting rods (6) penetrate through the support plate (4) and are fixedly connected with limiting blocks (7), and the steel tower frame (1) is also provided with a linkage mechanism (8) which supports the material hoister (2) when the support plate (4) is jacked up, the steel tower frame (1) is fixedly connected with a plurality of vertical guide rods (9), the upper side and the lower side of the material hoister (2) are rotatably connected with guide wheels (10), each guide wheel (10) is respectively connected with two sides of the guide rod (9) in a rolling way, the linkage mechanism (8) comprises a bending rod (11) which is driven when the support plate (4) rises, the steel tower frame (1) is fixedly connected with a horizontal installation rod (12), the bending point of the bending rod (11) is penetrated and rotatably connected onto the installation rod (12), the upper part of the bending rod (11) is vertically arranged, and the lower part of the bending rod bends towards one side deviating from the material hoister (2), the upper end orientation of pole (11) of buckling a side laminating and fixedly connected with wedge (13) of material lifting machine (2), just the pointed end of wedge (13) is down, when backup pad (4) rise sliding connection in wedge (13) dorsad buckle a side of pole (11), buckle pole (11) lower extreme orientation a side fixedly connected with of material lifting machine (2) is used for supporting shoe (14) of material lifting machine (2), still be connected with restriction lever (15) on buckling pole (11), restriction lever (15) are located buckle pole (11) dorsad material lifting machine (2) one side and luffing motion articulate on steel tower (1), the lower part of buckling pole (11) is provided with waist type hole (16) along its length direction setting, perpendicular fixedly connected with connecting rod (17) on restriction lever (15), the connecting rod (17) is inserted into the waist-shaped hole (16), the upper part of the bending rod (11) keeps vertical when the connecting rod (17) abuts against the upper end of the waist-shaped hole (16), and the lower part of the bending rod (11) keeps vertical when the connecting rod (17) abuts against the lower end of the waist-shaped hole (16).
2. An anti-roof fall device according to claim 1, wherein: still be provided with joint breach (18) on wedge (13), backup pad (4) joint is in when being jacked joint is in joint breach (18).
3. An anti-roof fall device according to claim 1, wherein: the lower side of the material lifting machine (2) is fixedly connected with an overhead support (19), and the material lifting machine (2) is erected by the overhead support (19) when parked on the ground.
4. An anti-roof fall device according to claim 1, wherein: restriction lever (15) in connecting rod (17) butt in perpendicular to during the lower extreme of waist type hole (16) the lower part of pole (11) of buckling, the bottom of material lifting machine (2) articulates there is upwards jack-up when the swing frame-shaped piece (20) of restriction lever (15), fixedly connected with control lever (21) is gone up in frame-shaped piece (20), control lever (21) penetrate in the material lifting machine (2), just the bottom of material lifting machine (2) is provided with the confession control lever (21) wobbling leads to groove (22).
5. An anti-roof fall device according to claim 1, wherein: the material hoist (2) is also provided with an anti-falling hand brake mechanism (23) for preventing the material hoist from falling.
6. An anti-roof fall device according to claim 5, wherein: prevent weighing down manual brake mechanism (23) including brake billet (24) of fixed connection on steel tower frame (1), brake billet (24) vertical setting, material lifting machine (2) still rotate outward and are connected with friction piece (25), be connected with on friction piece (25) slender pole (26) and by slender pole (26) control is in order to support tightly brake billet (24).
7. An anti-roof fall device according to claim 6, wherein: the outer wall fixedly connected with of material lifting machine (2) articulates seat (27), friction piece (25) are including articulating steel overcoat (28) on articulated seat (27), and fix rub block (29) in steel overcoat (28), slender pole (26) with the perpendicular fixed connection of articulated pole of steel overcoat (28) and stretch into in material lifting machine (2), steel overcoat (28) side is flagging naturally, the side of steel overcoat (28) is obtuse triangle-shaped, the pin joint of steel overcoat (28) is located one of its acute angle end, the minor lever side of steel overcoat (28) be in when slender pole (26) pushes down pendulum to brake billet (24) and make rub block (29) support tightly on brake billet (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436278.9A CN111559685B (en) | 2020-05-21 | 2020-05-21 | Top falling prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436278.9A CN111559685B (en) | 2020-05-21 | 2020-05-21 | Top falling prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111559685A CN111559685A (en) | 2020-08-21 |
| CN111559685B true CN111559685B (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010436278.9A Active CN111559685B (en) | 2020-05-21 | 2020-05-21 | Top falling prevention device |
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| CN (1) | CN111559685B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112591652A (en) * | 2020-12-07 | 2021-04-02 | 苏州穗柯智能科技有限公司 | Special hoisting mechanism of two stand stacker |
| CN114408697B (en) * | 2021-12-30 | 2023-07-21 | 北京中冶设备研究设计总院有限公司 | Anti-falling device and anti-falling elevator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008065706A1 (en) * | 2006-11-28 | 2008-06-05 | Mitsubishi Electric Corporation | Buffer of elevator |
| CN204162311U (en) * | 2014-08-30 | 2015-02-18 | 中元建设集团股份有限公司 | A kind of preventing colliding with top drop device |
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| WO2008065706A1 (en) * | 2006-11-28 | 2008-06-05 | Mitsubishi Electric Corporation | Buffer of elevator |
| CN204162311U (en) * | 2014-08-30 | 2015-02-18 | 中元建设集团股份有限公司 | A kind of preventing colliding with top drop device |
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| CN209411677U (en) * | 2018-12-25 | 2019-09-20 | 浙江诚辉建设有限公司 | A kind of preventing colliding with top drop device |
| CN109911737A (en) * | 2019-03-19 | 2019-06-21 | 帕菲特电子科技(江苏)有限公司 | A kind of buffer unit for elevator safety system |
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