CN204938806U - Preventing lifting hook from falling device - Google Patents
Preventing lifting hook from falling device Download PDFInfo
- Publication number
- CN204938806U CN204938806U CN201520668272.9U CN201520668272U CN204938806U CN 204938806 U CN204938806 U CN 204938806U CN 201520668272 U CN201520668272 U CN 201520668272U CN 204938806 U CN204938806 U CN 204938806U
- Authority
- CN
- China
- Prior art keywords
- fall
- suspension hook
- hooks
- hook
- falling device
- 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
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Abstract
A kind of preventing lifting hook from falling device, fall from the below of amplitude variation trolley for preventing the suspension hook assembly taking formula hoisting crane when the suspension hook of tower crane is rushed to summit, comprise two anti-fall hooks of the lower bottom part being articulated with amplitude variation trolley, described two anti-fall backs to interval arrange and between two the first stator wheels of amplitude variation trolley, the lower hook head part of two anti-fall hooks can swing to relative direction, described preventing lifting hook from falling device also comprises the upper end that is fixedly arranged on suspension hook assembly and can when suspension hook is rushed to summit and two suspension members closing of described anti-fall hook, when the setting position of described two suspension members resets with the swing of described two anti-fall hooks, the position of two bottom gib heads is corresponding.Above-mentioned preventing lifting hook from falling device, its structure is simple, simple with material, can directly field fabrication, adds the safety performance of hoisting crane, avoids the generation of safety misadventure when suspension hook is rushed to summit.
Description
Technical field
The utility model relates to a kind of preventing lifting hook from falling device for tower crane.
Background technology
Crane is rushed to summit for preventing suspension hook, all height limitator is provided with in lifting mechanism reel side when dispatching from the factory, height limitator effect is: according to code requirement when suspension hook rise to apart from rise double wall about 800mm time power-off, both made operating handle still shift hoisting position suspension hook onto can not rise again, can only shift handle onto lowering position, suspension hook can decline, and this prevents misoperation suspension hook and rushes to summit, hoist rope is broken and is caused suspension hook and weight to fall, and causes safety misadventure.But when height limitator lost efficacy, this accident still can not be avoided.
And as there is misoperation in weight-lifting equipment, height limitator is malfunctioning, and the suspension hook phenomenon that steel rope is pulled off of rushing to summit happens occasionally, and suspension hook or lifting cargo can together fall down from high-altitude, just may cause serious accident, if the safety misadventure of causing, economy has heavy losses.But suspension hook is rushed to summit generally, be sky hook or lifting cargo little compared with light volume, easily occur in zooming situation.Therefore, in the urgent need to designing a kind of structure that can prevent suspension hook from down falling when suspension hook is rushed to summit.
Utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide one can when suspension hook is rushed to summit, and prevents under suspension hook to the tower crane lift hook falling proof device fallen.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: provide a kind of preventing lifting hook from falling device, fall from the below of amplitude variation trolley for preventing the suspension hook assembly taking formula hoisting crane when the suspension hook of tower crane is rushed to summit, comprise two anti-fall hooks of the lower bottom part being articulated with amplitude variation trolley, described two anti-fall backs to interval arrange and between two the first stator wheels of amplitude variation trolley, the lower hook head part of two anti-fall hooks can swing to relative direction, described preventing lifting hook from falling device also comprises the upper end that is fixedly arranged on suspension hook assembly and can when suspension hook is rushed to summit and two suspension members closing of described anti-fall hook, when the setting position of described two suspension members resets with the swing of described two anti-fall hooks, the position of two bottom gib heads is corresponding.
As optimization, also comprise the fixed sturcture for two anti-fall hooks being arranged on the lower bottom part of described amplitude variation trolley, described fixed sturcture comprises installation riser, described installation riser is extended straight down by the bottom surface of amplitude variation trolley, and the left and right sides end of described installation riser is respectively near two the first stator wheels; Be respectively arranged with a pivot pin in the left and right sides of described installation riser, described two anti-fall hooks are arranged on described installation riser dorsad respectively by pivot pin.
As optimization, described installation riser is two pieces, be arranged in parallel before and after them, and two pivot pins are arranged on two pieces and install between riser, and described two anti-fall hooks are arranged on two pieces by two pivot pins and install between riser, and can rotate around the pivot pin of correspondence respectively.
As optimization, also comprise the pressure spring plate between two anti-fall hooks and two recoil press springs, described pressure spring plate has two respectively towards the stage clip attachment face of two anti-fall hooks, one end of two recoil press springs is separately fixed on two stage clip attachment faces, and the top shank of the other end of two recoil press springs hook anti-fall with two is respectively connected.
As optimization, also comprise the collision seat that has vertical cavity, the upper surface of described collision seat is fixed on the bottom surface between two the first stator wheels; Described collision seat has antetheca and the rear wall of T-shaped bulk, is connected to Zuo Bi and You Bi in the both sides of the bottom of antetheca and rear wall, and the lower surface of the first half of described collision seat is lower than the horizontal surface at the nadir place of described first stator wheel; The top shank of two anti-fall hooks is located in vertical cavity, and the top shank of two anti-fall hooks is respectively near corresponding Zuo Bi and You Bi, the bottom gib head of described two anti-fall hooks passes from the lower end of described collision seat, and the vertical plane at the place, outside of the bottom gib head of two anti-fall hooks lays respectively at outside the vertical plane at the place, the left and right sides of the lower end of lower end collision seat; Described pressure spring plate and two recoil press springs are located in the inside cavity of described collision seat.
As optimization, also comprise two pieces of guide plates for leading to suspension hook assembly, the upper end of two pieces of guide plates is fixed with the lower surface of antetheca and rear wall respectively, and lower end respectively down and tilt in the opposite direction.
As optimization, the horizontal surface at the vertex place of the bottom gib head of described two anti-fall hooks is lower than the lower surface of described collision steel.
As optimization, also comprise level to be located in described collision seat and for carrying out two spacing spacing axostylus axostyles to two anti-fall hooks, the two ends, left and right of two spacing axostylus axostyles are connected with right wall is vertical with the Zuo Bi of described collision seat, two spacing axostylus axostyles are spaced to form a spacing space, and described two anti-fall hooks are located in the left and right sides in this spacing space respectively.
As optimization, also comprise an axis of guide, upper end and the described two spacing axostylus axostyles of the described axis of guide are affixed, and lower end extends straight down, and the lower end of the described axis of guide has a downward tapering; The position that the upper surface of described suspension hook assembly is corresponding to the described axis of guide is provided with a guide holder, described guide holder vertically runs through and has a tapered hole mated with the lower end tapering of the described axis of guide.
As optimization, described suspension hook assembly comprises vertical and spaced two clamping plates, and the left and right sides in two clamping plates is respectively arranged with second stator wheel corresponding with described first stator wheel; Described suspension member is door type frame, two door type frames are separately positioned on position corresponding to described two bottom gib heads on the upper end of suspension hook assembly, two facades of described door type frame removably connect with two clamping plate respectively, and the spacing distance between two door type frames is less than two anti-fall hooks not by the distance between the lateral surface of bottom gib head before compression.
Above-mentioned preventing lifting hook from falling device, when suspension hook is rushed to summit, closed by the extension between two anti-fall hooks and the suspension member of two door type structures, can prevent suspension hook assembly from falling below amplitude variation trolley, add the safety performance of hoisting crane, avoid the generation of safety misadventure when suspension hook is rushed to summit.Preventing lifting hook from falling device of the present utility model, its structure is simple, simple with material, can directly make at the scene.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram being positioned at the part-structure of amplitude variation trolley lower bottom part in the utility model tower crane lift hook falling proof device one embodiment.
Fig. 2 is the lateral plan of Fig. 1.
Fig. 3 is the schematic diagram being positioned at the part-structure on suspension hook assembly in the utility model tower crane lift hook falling proof device one embodiment.
Fig. 4 is the lateral plan of Fig. 3.
Fig. 5, Fig. 6 and Fig. 7 are the using state figure of the utility model tower crane lift hook falling proof device.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 to Fig. 7, preventing lifting hook from falling device of the present utility model, fall from the below of amplitude variation trolley 1 for preventing the suspension hook assembly 2 taking formula hoisting crane when the suspension hook of tower crane is rushed to summit, comprise two anti-fall hooks 31 of the lower bottom part being articulated with amplitude variation trolley 1, described two anti-fall hooks 31 dorsad interval arrange and between two the first stator wheels 11 of amplitude variation trolley 1, the bottom gib head 311 of two anti-fall hooks 31 can swing to relative direction, described preventing lifting hook from falling device also comprise the upper end that is fixedly arranged on suspension hook assembly 2 and can when suspension hook is rushed to summit and described anti-fall hook 31 hang two suspension members 32 closed, when the setting position of described two suspension members 32 resets with the swing of described two anti-fall hooks 31, the position of two bottom gib heads 311 is corresponding.
Described anti-fall hook 31 comprises the bottom gib head 311 that top shank 312 is positioned at top shank 312 lower end, and described anti-fall hook 31 is hinged on the lower bottom part of described amplitude variation trolley 1 by top shank 312.
The amplitude variation trolley 1 of the present embodiment comprises vehicle frame 12, be arranged on two of vehicle frame 12 lower bottom part spaced the first stator wheels 11 along vehicle frame 12 length direction, be arranged on the pulley 13(tetra-of vehicle frame 12 upper end), amplitude variation trolley 1 can be moved on the transverse arm 8 of tower crane is reciprocal by four pulleys 13.Wherein:
Described vehicle frame 12 comprises for being combined to form a closed and underframe be the level of state (lower bottom part) by four first transverse axis, and underframe has the limit 121 of two length directions and the limit 122 of two Widths.In underframe, level is provided with two second transverse axis 123 dorsad, the two ends of two second transverse axis 123 are welded with the limit 122 of two Widths of underframe (paralleling with the limit 121 of the length direction of underframe) respectively, two second transverse axis 123 are spaced and parallel, the axis hole worn for pivot pin for a pair is respectively arranged with at the two ends of two the second transverse axis 123, after two the first stator wheels 11 are each passed through two pivot pins, again two pivot pins with the first stator wheel 11 are located in two pairs of axis holes respectively, to make in the gap of two the first stator wheels 11 between two second transverse axis 123.Described two the first stator wheels 11 can respectively around the axis rotation of two pivot pins, now, described pivot pin and two second transverse axis 123 perpendicular, thus make two the first stator wheel 11 axial lines and described second transverse axis 123 perpendicular.Described vehicle frame 12 also comprises four pulley support bars, on four angles that they fixedly stand on underframe respectively, between two often adjacent pulley support bars 14, is connected with a stirrup 15.Four pulleys 13 are separately positioned on the upper end of four pulley support bars 14.
Described suspension hook assembly 2 is positioned at immediately below amplitude variation trolley 1, and this suspension hook assembly 2 comprises vertically and the two clamping plates 21 be parallel to each other, and two clamping plates 21 is fixed by four set pins.Both sides in two clamping plates 21 arrange and are respectively arranged with two second stator wheels 22 corresponding with described first stator wheel 11, and the positive lower end of two clamping plates 21 is provided with hook body 23.Two the second stator wheels 22 are fixed in two clamping plates 21 by two pivot pins, and the radial face of two the second stator wheels 22 is parallel with two clamping plates 21.Suspension hook assembly 2 and amplitude variation trolley 1 carry out connection by a steel cable and coordinate, and namely steel cable 4 is looped around the outer wheel face of four stator wheels, when needs upwards lifting hook assembly 2 time, draw steel cable 4 in, when needs falls downward suspension hook assembly 2, loosen steel cable 4.
Understandable, in other examples, the structure of described amplitude variation trolley 1, suspension hook assembly 2 is not limited only to said structure, the lower bottom part of such as amplitude variation trolley 1 can be one block of whole steel plate, when two the first stator wheels 11 are installed, only need at spaced apart two the bar shaped mounting holes of its length direction, two the first stator wheels 11 are arranged in two bar shaped mounting holes etc.Preventing lifting hook from falling device in the present embodiment can use any a amplitude variation trolley 1 and suspension hook assembly 2 in prior art.
Below using the structure of above-mentioned amplitude variation trolley 1 and suspension hook assembly 2 as a concrete embodiment, in detail explanation is launched to preventing lifting hook from falling device.
In the present embodiment, described preventing lifting hook from falling device also comprises the fixed sturcture also comprised for two anti-fall hooks 31 being arranged on the lower bottom part of described amplitude variation trolley 1.Concrete, described fixed sturcture comprises a base plate 51 and two and installs risers 52, and described base plate 51 is fixedly connected on the bottom surface of amplitude variation trolley 1, is specifically welded on the lower surface of the second transverse axis 123 between two the first stator wheels 11; Two pieces the forward and backward parallel lower surface being fixed on described base plate 51 of riser 52 is installed.In the left side of two pieces of installation risers 52, correspondence is provided with pin hole respectively, the upper end of one of them anti-fall hook 31 is located on a pivot pin, again pivot pin is located in two corresponding pin holes, with make this anti-fall hook 31 be arranged on two pieces install on the left of risers 52 between and can rotate around this pivot pin; The right side of installing riser 52 at two pieces is also respectively arranged with pin hole, the upper end of another anti-fall hook 31 is located on another pivot pin, again pivot pin is located in two corresponding pin holes, is arranged between two pieces of right sides of installing risers 52 to make this anti-fall hook 31 and can rotates around this pivot pin.
Understandable, front and back herein refer to the one side of the length aspect of amplitude variation trolley 1 as front, two the first stator wheels 11 of amplitude variation trolley 1 are arranged on the left and right side of amplitude variation trolley 1, and the one side being positioned at front is then for above, and the one side be positioned at below is then below.
Understandable, said structure is not limited to protection domain of the present utility model, and in other embodiments, described fixed sturcture only can comprise a bottom surface installed riser or directly two anti-fall hooks 31 are directly hinged on amplitude variation trolley 1.
When suspension hook is rushed to summit, the impulsive force produced to prevent suspension hook assembly 2 from moving up rapidly easily damages two the first stator wheels 11, bottom surface between two the first stator wheels 11 is also provided with the collision seat 6 that has vertical cavity, two anti-fall hooks 31 from top to bottom through vertical cavity, and the lower end of two anti-fall hooks 31 is passed by the lower end of colliding seat 6.When suspension hook is rushed to summit, suspension hook assembly 2 is lower mobile rapidly, and this collision seat 6 can prevent suspension hook assembly 2 from colliding the first stator wheel 11, protects the first stator wheel 11 not to be damaged.Particularly:
Described collision seat 6 has antetheca and the rear wall of T-shaped bulk, is connected to Zuo Bi and You Bi in the both sides of the bottom of antetheca and rear wall, and the lower surface of the first half of described collision seat 6 is lower than the horizontal surface at the nadir place of described first stator wheel 11; The top of two anti-fall hooks 31 is located in vertical cavity, and the top shank 312 of two anti-fall hooks 31 is respectively near corresponding Zuo Bi and You Bi, the bottom gib head 311 of described two anti-fall hooks 31 passes from the lower end of described collision seat 6, and the vertical plane at the place, outside of the bottom gib head 311 of two anti-fall hooks 31 lays respectively at outside the vertical plane at the place, the left and right sides of the lower end of lower end collision seat 6.
Enclosing of above-mentioned front, rear, left and right wall, make the shape that the upper space of vertical cavity is large, lower space is little, even if the bottom of collision seat 6 is received short, specifically the bottom of its antetheca and rear wall can be received by the mode of cutting short, form overlapping T-shaped to make front and back walls.In this example, conveniently draw materials, above-mentioned antetheca, rear wall, left wall and right wall are channel-section steel.Make the bottom of collision seat 6 receive short object to be, the inwall of left and right wall can play position-limiting action to two anti-fall bottom gib heads 311 respectively, two anti-fall hooks 31 can not be swung in the opposite direction, when suspension hook is rushed to summit, ensure that two anti-fall hooks 31 are hung right with two suspension members 32 of suspension hook assembly 2.
The bottom surface of amplitude variation trolley 1 to the parallel distance of the lower surface of the first half of collision seat 6 is greater than the parallel distance of the horizontal surface at the nadir place of bottom surface to the first stator wheel 11 of amplitude variation trolley 1, and the left and right lateral surface at bottom gib head 311 place of two anti-fall hooks 31 is all positioned at the vertical plane at the place, the left and right sides of the first half, therefore, when suspension hook is rushed to summit, after suspension hook assembly 2 moves up rapidly, the lower surface of the first half of this collision seat 6 can withstand suspension hook assembly 2, make suspension hook assembly 2 can not continue to move up, prevent the first stator wheel 11 from being clashed into by suspension hook assembly 2.
The upper end also comprising two pieces of guide plates, 91, the two pieces of guide plates 91 for leading to suspension hook assembly 2 is fixed with the lower surface of antetheca and rear wall respectively, and lower end respectively down and tilt in the opposite direction.In this example, the spacing between the upper end of described two pieces of guide plates 91 is a bit larger tham the distance between two pieces of dull and stereotyped alien invasion.
In the present embodiment, described preventing lifting hook from falling device also comprises pressure spring plate 71 between two anti-fall hooks 31 and two recoil press springs 72, described pressure spring plate 71 has two respectively towards the stage clip attachment face of two anti-fall hooks 31, one end of two recoil press springs 72 is separately fixed on two stage clip attachment faces, and the other end of two recoil press springs 72 is connected with adjacent top shank 312 respectively.When tower crane is in normal condition, when being namely in the state that suspension hook do not rush to summit, two recoil press springs 72 are not compressed by two anti-fall hooks 31, therefore recoil press spring 72 is in non-confined state, when suspension hook is rushed to summit, suspension hook assembly 2 rises rapidly, opposite side between two suspension members 32 of suspension hook assembly 2 upper end presses the dip plane of two bottom gib heads 311, therefore two anti-fall hooks 31 swing to relative direction, thus press two recoil press springs 72, now suspension hook assembly 2 continues to move up, until the lower surface of the first half of collision seat 6 is supported in its upper end, now the bottom gib head 311 of two anti-fall hooks 31 is positioned at the below of two suspension members 32, the dip plane of two bottom gib heads 311 is not by any extruding, therefore two recoil press springs 72 return rapidly, the bottom gib head 311 of two anti-fall hooks 31 is made to be positioned at immediately below two suspension members 32, after this, suspension hook assembly 2 can not continue to move up because being subject to resistance, therefore and downwards fall after rise, thus make suspension member 32 and link up with successfully to hang conjunction.
In the present embodiment, the horizontal surface at the vertex place of the bottom gib head 311 of described two anti-fall hooks 31 is lower than the lower surface of described collision steel, design like this, when staff takes out suspension hook assembly 2, can to the top shank 312 of two anti-fall hooks 31 to relative pressuring direction, two bottom gib heads 311 are drawn in relative direction, more up moves suspension hook assembly 2 to take out suspension hook assembly 2.
In the present embodiment, described preventing lifting hook from falling device also comprises level and to be located in described collision seat 6 and for carrying out two spacing spacing axostylus axostyles 92 to two anti-fall hooks 31, the two ends, left and right of two spacing axostylus axostyles 92 are connected with right wall is vertical with the Zuo Bi of described collision seat 6, two spacing axostylus axostyles 92 are spaced to form a spacing space, and described two anti-fall hooks 31 are located in the left and right sides in this spacing space respectively.
Described preventing lifting hook from falling device also comprises an axis of guide 93, and upper end and the described two spacing axostylus axostyles 92 of the described axis of guide 93 are affixed, and lower end extends straight down, and the lower end of the described axis of guide 93 has a downward tapering; The position that the upper surface of described suspension hook assembly 2 is corresponding to the described axis of guide 93 is provided with a guide holder 94, described guide holder 94 vertically runs through and has a tapered hole 95 mated with the lower end tapering of the described axis of guide 93.
In present embodiment, above-mentioned suspension member 32 is door type frame, two door type frames are separately positioned on position corresponding to two bottom gib heads 311 on the upper end of suspension hook assembly 2, two facades of described door type frame removably connect with two clamping plate 21 respectively, particularly, two facades removably connect with the inside face of two clamping plate 21 respectively.Spacing distance between two door type frames is less than two anti-fall hooks 31 not by the distance before compression between their lateral surface.
Specifically in conjunction with example:
In this example, the first channel-section steel plays collision effect, and therefore following is collision channel-section steel.Tower machine preventing lifting hook from falling device in this example, the below of intermediate channel steel structure (the second transverse axis) between two the first stator wheels being arranged on tower machine amplitude variation trolley and the upper end of the clamping plate of tower machine suspension hook assembly, it is made up of the suspension member, recoil press spring etc. of collision seat, two drop resistant hooks, two pieces of door type structures.
One, the structure of preventing lifting hook from falling device
1, with the composition of amplitude variation trolley; The below of channel-section steel (the second transverse axis) in the middle part of amplitude variation trolley, weld with the upper end of collision seat, collision seat be by 2 wide for 180mm, length be 300mm, the bottom, two ends of length direction is received short, lower minister is 200mm, be welded with the termination steel plate (namely above-mentioned left and right wall) of 130mm × 180mm inside the termination of bottom, be welded into framework, form a collision seat.Collision seat inner top, have one piece thick in 14mm, length and width is the base plate of 180mm × 160mm, it is welded on the bottom surface of two channel-section steels (the second transverse axis) of the first stator wheel of amplitude variation trolley, substrate and the first transverse axis are welded with 4 pieces and reinforce triangle gusset, and base plate bottom surface is welded with the parallel installation riser in two pieces of front and back.Anti-fall hook is just arranged on two pieces by jointed shaft and installs between riser, and in the middle part of collision seat, be welded with the stage clip seat board of one piece of 60mm × 180mm, 2 stage clips are just contained between stage clip seat board and anti-fall hook.The both sides, front and back of anti-fall hook are the angle steel of 2 30mm × 30mm, and the two ends of angle steel are welded on the left and right wall at collision seat two ends, and it has been the effect of two anti-fall hook guiding.The middle part of angle steel be welded with 1 φ 35mm and lower end with the axis of guide of tapering, it is that the guide holder through the upper middle part of suspension hook assembly plays location when suspension hook assembly is close to collision seat.Be welded with two pieces on collision seat both sides in addition: thick is 10mm, and length and width is the steel plate of 160mm × 100mm, outward-dipping 40 ° of steel plate, be also when suspension hook is close to collision channel-section steel, play a part to lead (see Fig. 1 and Fig. 2).
2, with the composition of tower machine suspension hook assembly; On the both sides, upper end of suspension hook assembly, two anti-fall door type frames are installed, with 4 M16 bolts below anti-fall door type frame, be connected on suspension hook assembly two clamping plates, it is demolition, installation aspect when being convenient to suspension hook unit repair that bolt connects, spacing between 2 anti-fall door type frames is 250mm, 50mm more than collision seat lower length, is convenient to contact when suspension hook assembly upper end is collided with collision seat top.Guide holder has a φ 65mm with the hole of tapering, it is and the axis of guide of collision seat bottom with tapering, has extended there through the effect of location.Boring ratio is with the large φ 30mm of the axis of guide of tapering, and this makes hole have enough width, allows the axis of guide extend there through, otherwise will go wrong (see Fig. 3 and Fig. 4).
Two, the use procedure of tower machine preventing lifting hook from falling device
When tower machine in use upwards runs fast, as there is tower crane misoperation, height limiting device is malfunctioning, suspension hook total performance can collide by the collision seat directly below up and amplitude variation trolley, at this moment suspension hook assembly is by guide plate below collision seat, direct bearing to, the bottom gib head of anti-fall hook contacts with anti-fall door type frame, utilize the gradient below the gib head of anti-fall bottom, 2 anti-fall bottom gib heads are compressed, when anti-fall door type frame exceeds the bottom gib head of anti-fall hook, 2 anti-fall be hooked in the effect of recoil press spring under, will enter in the anti-fall door type frame above suspension hook assembly fast, suspension hook assembly is blocked on collision seat, steel rope can be broken (see figure 5) by force.
After steel rope is pulled off, suspension hook assembly is understood nature because of weight and is fallen downwards, at this moment the bottom gib head of anti-fall hook has entered in anti-fall door type frame, and suspension hook total performance can be hooked by the bottom gib head of anti-fall hook, so suspension hook assembly can not continue (see figure 6) of falling downwards.
Collision rift slides down due to suspension hook assembly, at this moment collide transverse plane on seat lower plane and suspension hook assembly and will have distance, the spacing between them is 120mm, and we just can utilize this spacing to take out suspension hook assembly, when this namely takes out suspension hook assembly, suspension hook assembly needs upwards movable distance.At this moment amplitude variation trolley can be gone back, play double wall root near tower machine, be convenient to the operation of maintainer, by more change steel rope again, by the method for winch fine motion, slowly crawl hoists suspension hook assembly, and suspension hook assembly is in up distance, more artificial anti-fall hook is pushed down toward centre, allow suspension hook assembly slowly to whereabouts, suspension hook assembly is taken out from anti-fall hook, and tower machine recovers normal and uses, and the object of such falling proof device just reaches (see figure 7).
The effect of preventing lifting hook from falling device is exactly, after weight-lifting equipment main rope is pulled off, suspension hook assembly and goods can not be allowed freely from falling down in the air, suspension hook assembly can only be through the connection of steel rope, under the control of operating personal, directively to run up and down, reach the object of safety in production.
These are only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification sheets and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a preventing lifting hook from falling device, fall from the below of amplitude variation trolley for preventing the suspension hook assembly taking formula hoisting crane when the suspension hook of tower crane is rushed to summit, it is characterized in that: two the anti-fall hooks comprising the lower bottom part being articulated with amplitude variation trolley, described two anti-fall backs to interval arrange and between two the first stator wheels of amplitude variation trolley, the lower hook head part of two anti-fall hooks can swing to relative direction, described preventing lifting hook from falling device also comprises the upper end that is fixedly arranged on suspension hook assembly and can when suspension hook is rushed to summit and two suspension members closing of described anti-fall hook, when the setting position of described two suspension members resets with the swing of described two anti-fall hooks, the position of two bottom gib heads is corresponding.
2. preventing lifting hook from falling device as claimed in claim 1, it is characterized in that: also comprise the fixed sturcture for two anti-fall hooks being arranged on the lower bottom part of described amplitude variation trolley, described fixed sturcture comprises installation riser, described installation riser is extended straight down by the bottom surface of amplitude variation trolley, and the left and right sides end of described installation riser is respectively near two the first stator wheels;
Be respectively arranged with a pivot pin in the left and right sides of described installation riser, described two anti-fall hooks are arranged on described installation riser dorsad respectively by pivot pin.
3. preventing lifting hook from falling device as claimed in claim 2, it is characterized in that: described installation riser is two pieces, be arranged in parallel before and after them, two pivot pins are arranged on two pieces and install between riser, described two anti-fall hooks are arranged on two pieces by two pivot pins and install between riser, and can rotate around the pivot pin of correspondence respectively.
4. preventing lifting hook from falling device as claimed in claim 1, it is characterized in that: also comprise the pressure spring plate between two anti-fall hooks and two recoil press springs, described pressure spring plate has two respectively towards the stage clip attachment face of two anti-fall hooks, one end of two recoil press springs is separately fixed on two stage clip attachment faces, and the top shank of the other end of two recoil press springs hook anti-fall with two is respectively connected.
5. preventing lifting hook from falling device as claimed in claim 4, it is characterized in that: also comprise the collision seat that has vertical cavity, the upper surface of described collision seat is fixed on the bottom surface between two the first stator wheels;
Described collision seat has antetheca and the rear wall of T-shaped bulk, is connected to Zuo Bi and You Bi in the both sides of the bottom of antetheca and rear wall, and the lower surface of the first half of described collision seat is lower than the horizontal surface at the nadir place of described first stator wheel;
The top shank of two anti-fall hooks is located in vertical cavity, and the top shank of two anti-fall hooks is respectively near corresponding Zuo Bi and You Bi, the bottom gib head of described two anti-fall hooks passes from the lower end of described collision seat, and the vertical plane at the place, outside of the bottom gib head of two anti-fall hooks lays respectively at outside the vertical plane at the place, the left and right sides of the lower end of lower end collision seat;
Described pressure spring plate and two recoil press springs are located in the inside cavity of described collision seat.
6. preventing lifting hook from falling device as claimed in claim 5, it is characterized in that: also comprise two pieces of guide plates for leading to suspension hook assembly, the upper end of two pieces of guide plates is fixed with the lower surface of antetheca and rear wall respectively, and lower end respectively down and tilt in the opposite direction.
7. preventing lifting hook from falling device as claimed in claim 5, is characterized in that: the horizontal surface at the vertex place of the bottom gib head of described two anti-fall hooks is lower than the lower surface of described collision steel.
8. preventing lifting hook from falling device as claimed in claim 5, it is characterized in that: also comprise level and to be located in described collision seat and for carrying out two spacing spacing axostylus axostyles to two anti-fall hooks, the two ends, left and right of two spacing axostylus axostyles are connected with right wall is vertical with the Zuo Bi of described collision seat, two spacing axostylus axostyles are spaced to form a spacing space, and described two anti-fall hooks are located in the left and right sides in this spacing space respectively.
9. preventing lifting hook from falling device as claimed in claim 8, it is characterized in that: also comprise an axis of guide, upper end and the described two spacing axostylus axostyles of the described axis of guide are affixed, and lower end extends straight down, and the lower end of the described axis of guide has a downward tapering;
The position that the upper surface of described suspension hook assembly is corresponding to the described axis of guide is provided with a guide holder, described guide holder vertically runs through and has a tapered hole mated with the lower end tapering of the described axis of guide.
10. the preventing lifting hook from falling device any one of claim 1 to 9 as described in claim, it is characterized in that: described suspension hook assembly comprises vertical and spaced two clamping plates, the left and right sides in two clamping plates is respectively arranged with second stator wheel corresponding with described first stator wheel;
Described suspension member is door type frame, two door type frames are separately positioned on position corresponding to described two bottom gib heads on the upper end of suspension hook assembly, two facades of described door type frame removably connect with two clamping plate respectively, and the spacing distance between two door type frames is less than two anti-fall hooks not by the distance between the lateral surface of bottom gib head before compression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520668272.9U CN204938806U (en) | 2015-08-31 | 2015-08-31 | Preventing lifting hook from falling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520668272.9U CN204938806U (en) | 2015-08-31 | 2015-08-31 | Preventing lifting hook from falling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204938806U true CN204938806U (en) | 2016-01-06 |
Family
ID=55006249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520668272.9U Active CN204938806U (en) | 2015-08-31 | 2015-08-31 | Preventing lifting hook from falling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204938806U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499252A (en) * | 2016-12-16 | 2017-03-15 | 重庆旺德福金属结构有限公司 | Safety hook climbed by a kind of spring-piece type steel tower |
| CN107128824A (en) * | 2017-06-15 | 2017-09-05 | 合肥海腾软件科技有限公司 | The anti-suspension hook of derrick crane is rushed to summit falling protecting device |
| CN107986164A (en) * | 2017-09-27 | 2018-05-04 | 河南省大方重型机器有限公司 | A kind of steel wire rope overload protection arrangement |
| CN113697678A (en) * | 2021-09-01 | 2021-11-26 | 山东中诚机械租赁有限公司 | Broken rope anti-falling system of lifting hook |
-
2015
- 2015-08-31 CN CN201520668272.9U patent/CN204938806U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499252A (en) * | 2016-12-16 | 2017-03-15 | 重庆旺德福金属结构有限公司 | Safety hook climbed by a kind of spring-piece type steel tower |
| CN106499252B (en) * | 2016-12-16 | 2018-11-27 | 重庆旺德福金属结构有限公司 | A kind of spring-piece type steel tower climbing safety hook |
| CN107128824A (en) * | 2017-06-15 | 2017-09-05 | 合肥海腾软件科技有限公司 | The anti-suspension hook of derrick crane is rushed to summit falling protecting device |
| CN107986164A (en) * | 2017-09-27 | 2018-05-04 | 河南省大方重型机器有限公司 | A kind of steel wire rope overload protection arrangement |
| CN107986164B (en) * | 2017-09-27 | 2018-11-23 | 河南省大方重型机器有限公司 | A kind of wirerope overload protection arrangement |
| CN113697678A (en) * | 2021-09-01 | 2021-11-26 | 山东中诚机械租赁有限公司 | Broken rope anti-falling system of lifting hook |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204938806U (en) | Preventing lifting hook from falling device | |
| CN110528863B (en) | Hanging basket device for outer inclined plane construction and construction method | |
| CN203699606U (en) | Lifter and iron tower | |
| CN105003082A (en) | Glass curtain wall mounting equipment and glass curtain mounting method | |
| CN111720124A (en) | Derrick for installing vertical shaft pipeline | |
| CN209815484U (en) | Hoist device is used in building engineering construction | |
| CN215212267U (en) | Pulling-up hanging basket for construction of constructional engineering | |
| CN205034980U (en) | A lifting hook anti -falling device for hoist | |
| CN210260959U (en) | Stable lifting equipment | |
| CN210340141U (en) | House building engineering lifting device | |
| CN203877807U (en) | Rope loosening protective device of winding type hoister | |
| CN101934994A (en) | Building high-altitude vertical hoisting double-guide cable system and assisting method | |
| CN211037771U (en) | Hanging basket device for outer slope construction | |
| CN210366715U (en) | Bridge-building portal crane | |
| CN211619794U (en) | Low-space simple gantry hoisting device | |
| CN201793342U (en) | Double guide cable system for overhead vertical lifting of building | |
| CN211644414U (en) | Lifting device for electromechanical engineering | |
| CN205034985U (en) | Tower crane lifting hook anti -falling device | |
| CN213112252U (en) | Limiting device for crane trolley | |
| CN205472287U (en) | Suspension type single -beam crane | |
| CN210176031U (en) | Ceramic tile stacker | |
| CN204549892U (en) | A kind of high-rise building external wall cleaning machine crane | |
| CN109335989B (en) | Dam runner maintenance platform with mechanical arm | |
| CN207061681U (en) | Lift by crane weight-limiting apparatus | |
| CN204474108U (en) | A kind of steel wire rope type equalizing gear of building hoist |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |