SUMMERY OF THE UTILITY MODEL
In order to compensate the above deficiency, the utility model provides an integrated form adheres to lift scaffold frame and prevents weighing down protection device with double pendulum shift fork aims at improving the problem that the shift fork resets not be convenient for after current shift fork prevents weighing down protection device's spring breaks down.
The utility model discloses a realize like this:
an integrated double-pendulum shifting fork anti-falling protection device for an attached lifting scaffold comprises an attached wall support assembly, a double-pendulum shifting fork assembly and a rail assembly.
The double-pendulum shifting fork assembly comprises two slideways, a plurality of sliding roller pieces, a first connecting rod, a second connecting rod, a third connecting rod, two mounting plates, a blocking shifting fork piece, a triggering shifting fork piece and a support plate, wherein the two slideways are correspondingly arranged, the sliding roller pieces are respectively and rotatably connected to the upper end and the lower end of the opposite side wall of the two slideways, one sides of the two slideways are respectively and fixedly connected with the third connecting rod through the first connecting rod, the second connecting rod and the third connecting rod from top to bottom, the second connecting rod and the third connecting rod are fixedly connected with the end part of the wall-attached support assembly, the two mounting plates are respectively and fixedly connected to the two sides between the first connecting rod and the second connecting rod, the blocking shifting fork piece comprises two blocking shifting fork plates, two blocking shifting forks, a first limit plate and a second limit plate, and the two blocking shifting forks are respectively and fixedly connected to the upper sides of one ends of the two, the clamping shifting fork plate is provided with a mounting hole at one end close to the clamping shifting fork, the two clamping shifting fork plates are correspondingly arranged, the tail parts and the lower parts of the two clamping shifting fork plates are fixedly connected through the first limiting plate and the second limiting plate respectively, a first connecting pin shaft penetrates between the two mounting plates in a sliding manner, the mounting hole is rotatably connected with the first connecting pin shaft, one end of the trigger shifting fork piece is rotatably connected with the first connecting pin shaft, the other end of the trigger shifting fork piece extends out of the clamping shifting fork plate, the second connecting rod can block the clamping shifting fork plates, the first limiting plate can block the trigger shifting fork piece, the supporting plate is fixedly connected with the upper side of the second connecting rod, the supporting plate can support the second limiting plate, and the track assembly comprises a mounting bracket, two tracks and a plurality of anti-falling cross rods, the two tracks are correspondingly arranged on one side of the mounting support, the two tracks are fixedly connected to the mounting support, the anti-falling cross rods are fixedly connected between the two tracks at equal intervals, the outer sides of the tracks can slide along the sliding roller pieces, and the anti-falling cross rods can press the trigger shifting fork pieces.
The utility model discloses an in one embodiment, attach wall support subassembly includes two dead levers, two bracing pieces and fixed plate, and two bracing pieces correspond the setting, two the bracing piece is fixed connection respectively in two dead lever one side, the bracing piece perpendicular to the dead lever, the fixed plate sets up to the U-shaped, the upside fixed connection of fixed plate inner wall in the bracing piece upside, the second connecting rod with the third connecting rod respectively fixed connection in the upper and lower both sides of fixed plate outer wall.
In an embodiment of the present invention, the second connecting rod and the third connecting rod are fixedly connected to the upper and lower sides of the outer wall of the fixing plate through the second connecting pin.
In an embodiment of the present invention, the support rod and the reinforcement rod are fixedly connected between the fixing rods, and the lower side of the inner wall of the fixing plate is fixedly connected to the side wall of the reinforcement rod.
The utility model discloses an in one embodiment, two fixedly connected with first reinforcing plate, second reinforcing plate and third reinforcing plate from top to bottom in proper order between the dead lever, first reinforcing plate is located the dead lever with the bracing piece junction, the second reinforcing plate is located the dead lever with the bracing piece junction.
The utility model discloses an in one embodiment, the slip roller spare includes slide roller, two thrust ball bearing, pivot and coupling nut, thrust ball bearing peg graft respectively in the inside of slide roller both sides, the pivot rotates in proper order to run through thrust ball bearing the slide roller with the slide, the coupling nut screw thread cup joint in pivot tip, coupling nut compress tightly in the slide, the pivot will thrust ball bearing compress tightly in the slide roller.
In an embodiment of the present invention, the rotating shaft includes a shaft body and a pressing plate fixedly connected to one end of the shaft body.
In an embodiment of the present invention, the blocking fork plate is kept away from one end of the blocking fork plate is slidably penetrated by a third connecting pin, and a counterweight sleeve is sleeved on the third connecting pin.
The utility model discloses an in one embodiment, trigger the shift fork spare including trigger the shift fork board and with fixed connection in trigger the shift fork that triggers shift fork board one end.
The utility model discloses an in an embodiment, trigger the declutch shift board and keep away from trigger the first dog of shift fork one end fixedly connected with, two fixedly connected with second dog between the block declutch shift board, the second dog can block first dog.
The utility model has the advantages that: the utility model discloses an integrated form adheres to double pendulum shift fork anti-falling protection device for lift scaffold who obtains through the design, when the track falls, the track falling speed increases gradually, drive and prevent that the falling speed of horizontal pole increases, and then make card hinder declutch shift plate and card hinder the shift fork and not deflect to the normal position, prevent that the falling speed of horizontal pole just pushes down the card and hinder the shift fork, the card hinders the shift fork and rotates and pushes down the second connecting rod, the card hinders the shift fork and supports and prevent that the falling speed of horizontal pole, and then support the track, reach the purpose that prevents the lift scaffold from falling, the eccentric gravity reset structure that card hinders declutch shift spare and triggers declutch shift spare double shift fork all adopt, realize twisting pendulum reset under the effect of dead weight gravity, thereby avoided traditional shift fork working radius space great, and need the structure of installation spring to realize the reset, simple structure is easy and simple to use, and then after the, the shifting fork is not convenient to reset.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
Referring to fig. 1, the present invention provides an integrated double-pendulum fork anti-falling protection device for attached lifting scaffold, including attaching a wall support assembly 100, a double-pendulum fork assembly 200 and a rail assembly 300, wherein the wall support assembly 100 is used for fixedly supporting the double-pendulum fork assembly 200 and the rail assembly 300, the double-pendulum fork assembly 200 is used for preventing the rail assembly 300 from suddenly falling, and the rail assembly 300 is used for guiding the scaffold to slide.
Referring to fig. 2, the double-pendulum fork assembly 200 includes two slides 210, a plurality of sliding roller members 220, a first connecting rod 230, a second connecting rod 240, a third connecting rod 250, two mounting plates 260, a clamping fork member 270, a triggering fork member 280 and a supporting plate 290, the two slides 210 are correspondingly disposed, the plurality of sliding roller members 220 are respectively rotatably connected to upper and lower ends of opposite sidewalls of the two slides 210, one sides of the two slides 210 are respectively and fixedly connected to the first connecting rod 230, the second connecting rod 240 and the third connecting rod 250 from top to bottom by welding, the second connecting rod 240 and the third connecting rod 250 are fixedly connected to an end of the wall-attached support assembly 100, the two mounting plates 260 are respectively and fixedly connected to two sides between the first connecting rod 230 and the second connecting, the two mounting plates 260 are fixed between the chute 210, the first connecting rod 230, and the second connecting rod 240 by welding.
Referring to fig. 3, the blocking fork 270 includes two blocking fork plates 271, two blocking forks 272, a first limit plate 274 and a second limit plate 275, the two blocking forks 272 are respectively and fixedly connected to the upper sides of one ends of the two blocking fork plates 271, the blocking fork 272 and the blocking fork plates 271 are an integral structure, a mounting hole 273 is formed at one end of the blocking fork plate 271 close to the blocking fork 272, the two blocking fork plates 271 are correspondingly arranged, the tail and the lower portion of the two blocking fork plates 271 respectively pass through the first limit plate 274 and the second limit plate 275, the first limit plate 274 and the second limit plate 275 are fixedly connected between the two blocking fork plates by welding, a first connecting pin shaft penetrates through the two mounting plates 260 in a sliding manner, the mounting hole 273 is rotatably connected to the first connecting pin shaft, one end of the trigger fork 280 is rotatably connected to the first connecting pin shaft, the other end of the trigger fork 280 extends out of the blocking fork plates 271, the second connecting rod 240 can block the blocking fork plate 271, the first limiting plate 274 can block the trigger fork 280, the supporting plate 290 is fixedly connected to the upper side of the second connecting rod 240, the supporting plate 290 and the second connecting rod 240 are fixed by welding, the supporting plate 290 can support the second limiting plate 275, one end, far away from the blocking fork plate 271, of the blocking fork plate 271 is slidably penetrated with a third connecting pin, a counterweight sleeve 276 is sleeved on the third connecting pin, the third connecting pin can be taken out and the counterweight sleeve 276 can be taken out or added, the weight difference at two ends of the blocking fork plate 271 is changed by increasing or decreasing the counterweight sleeve 276, the rotating speed of the blocking fork plate 271 around the first connecting pin shaft is changed, and in the falling process is adjusted, the blocking fork 272 can effectively block the track assembly 300.
Referring to fig. 4, the sliding roller member 220 includes a sliding roller 221, two thrust ball bearings 222, a rotating shaft 223 and a connecting nut 224, the thrust ball bearings 222 are respectively inserted into two sides of the sliding roller 221, the rotating shaft 223 sequentially rotates to penetrate through the thrust ball bearings 222, the sliding roller 221 and the slideway 210, the connecting nut 224 is screwed on the end portion of the rotating shaft 223, the connecting nut 224 is pressed on the slideway 210, the thrust ball bearings 222 are pressed on the sliding roller 221 by the rotating shaft 223, and in the process that the track assembly 300 slides along the outer wall of the sliding roller 221, the sliding roller 221 rotates along with the track assembly 300, so that the resistance between the track assembly 300 and the sliding roller 221 is reduced, and the track assembly 300 can slide conveniently.
Referring to fig. 5, the rotating shaft 223 includes a shaft body 2231 and a pressing plate 2232 fixedly connected to one end of the shaft body 2231, the shaft body 2231 and the pressing plate 2232 are of an integrated structure, and when the sliding roller 221 or the thrust ball bearing 222 needs to be repaired, the connecting nut 224 is rotated, and the connecting nut 224 gradually leaves the shaft body 2231 through a screw transmission principle, so that the connecting nut 224 is released, the shaft body 2231 is drawn out, the sliding roller 221 or the thrust ball bearing 222 can be removed and replaced, and the replacement process is simple because the replacement is performed in the reverse order of the removal direction.
Referring to fig. 6, the trigger fork 280 includes a trigger fork 281 and a trigger fork 282 fixedly connected to one end of the trigger fork 281, the trigger fork 281 and the trigger fork 282 are integrally structured, one end of the trigger fork 281, which is far away from the trigger fork 282, is fixedly connected with a first stop 283, the first stop 283 and the trigger fork 281 are integrally structured, a second stop 277 is fixedly connected between two blocking fork 271, the second stop 277 is fixedly connected between the two blocking fork 271 by welding, and the first stop 283 can be stopped by the second stop 277, so as to reduce the over-deflection of the trigger fork 282, which cannot be reset under the action of gravity.
Referring to fig. 7, the rail assembly 300 includes a mounting bracket 310, two rails 320 and a plurality of anti-falling rails 330, the two rails 320 are correspondingly disposed on one side of the mounting bracket 310, the two rails 320 are fixedly connected to the mounting bracket 310 by bolts or welding, the plurality of anti-falling rails 330 are fixedly connected between the two rails 320 at equal intervals, the anti-falling rails 330 are fixedly connected between the two rails 320 by welding, the outer sides of the rails 320 can slide along the sliding roller 220, the anti-falling rails 330 can press the trigger fork 280, when the rails 320 rise at a constant speed, the anti-falling rails 330 drive the trigger fork 282 to deflect upwards, the trigger fork 282 gradually leaves the anti-falling rails 330, the anti-falling rails 330 can pass through smoothly in sequence, when the rails 320 fall at a constant speed, the anti-falling rails 330 drive the trigger fork 282 to deflect downwards, the trigger fork 282 drives, after the anti-falling cross bar 330 leaves the trigger fork 282 due to deflection, the gravity of one end of the blocking fork plate 271, which is far away from the blocking fork 272, is larger, and the anti-falling cross bar 330 gradually deflects to restore the original position under the action of gravity, so that the rail 320 can smoothly descend through the anti-falling cross bar 330, when the rail 320 falls, the falling speed of the rail 320 is gradually increased, the falling speed of the anti-falling cross bar 330 is increased, and further the anti-falling fork plate 271 and the blocking fork 272 are not deflected to the original position, the anti-falling cross bar 330 presses the blocking fork 272, the blocking fork 272 rotates to press the second connecting rod 240, the blocking fork 272 supports the anti-falling cross bar 330, and further supports the rail 320, thereby achieving the purpose of preventing the lifting scaffold from falling, the eccentric gravity reset structure adopted by the blocking fork 272 and the trigger fork 282 is adopted, the torsional reset is realized under the action of self-weight gravity, and, the structure external force that reaches needs the installation spring realizes reseing, and simple structure is simple to use, and then effectual improvement current shift fork formula prevents weighing down protection device's spring trouble back, the problem that the shift fork resets of being not convenient for.
Referring to fig. 8 and 9, the wall-attached support assembly 100 includes two fixing rods 110, two supporting rods 120 and a fixing plate 140, the two supporting rods 120 are correspondingly disposed, the two supporting rods 120 are respectively and fixedly connected to one side of the two fixing rods 110, the supporting rods 120 and the fixing rods 110 are fixed by welding, the supporting rods 120 are perpendicular to the fixing rods 110, the fixing rods 110 are fixed to the building structure, the fixing plate 140 is U-shaped, the upper side of the inner wall of the fixing plate 140 is fixedly connected to the upper side of the supporting rods 120, the fixing plate 140 and the supporting rods 120 are fixed by welding, second connecting rods 240 and third connecting rods 250 are respectively and fixedly connected to the upper and lower sides of the outer wall of the fixing plate 140, the second connecting rods 240 and the third connecting rods 250 are fixedly connected to the upper and lower sides of the outer wall of the fixing plate 140 by second connecting pins 150, the disassembly process is simple, the reinforcing rod 130 is fixedly connected between the supporting rod 120 and the fixing rods 110 through welding, the lower side of the inner wall of the fixing plate 140 is fixedly connected to the side wall of the reinforcing rod 130, the fixing plate 140 and the reinforcing rod 130 are fixedly connected through welding, the supporting rod 120 can be supported by the reinforcing rod 130, the strength of the supporting rod 120 is improved, the first reinforcing plate 160, the second reinforcing plate 170 and the third reinforcing plate 180 are fixedly connected between the two fixing rods 110 from top to bottom in sequence, the first reinforcing plate 160 is positioned at the joint of the fixing rod 110 and the supporting rod 120, the first reinforcing plate, the fixing rod 110 and the supporting rod 120 are fixed by welding, the second reinforcing plate 170 is positioned at the joint of the fixing rod 110 and the reinforcing rod 130, and the second reinforcing plate 170, the fixing rod 110 and the reinforcing rod 130 are fixed by welding, so that the strength of the fixing rod 110 and the reinforcing rod 130 is improved.
Specifically, this integrated form adheres to lift scaffold and prevents weighing down protection device's theory of operation with double pendulum shift fork: when the rail 320 ascends at a constant speed, the anti-falling cross bar 330 drives the trigger fork 282 to deflect upwards, the trigger fork 282 gradually leaves the anti-falling cross bar 330, the anti-falling cross bar 330 can pass through smoothly in sequence, when the rail 320 descends at a constant speed, the anti-falling cross bar 330 drives the trigger fork 282 to deflect downwards, the trigger fork 282 drives the blocking fork 272 and the blocking fork plate 271 to rotate, after the anti-falling cross bar 330 leaves the trigger fork 282 due to deflection, the gravity of one end, away from the blocking fork 272, of the blocking fork plate 271 is larger, the anti-falling cross bar 330 gradually deflects under the action of gravity to recover to the original position, so that the rail 320 can descend smoothly through the anti-falling cross bar 330, when the rail 320 falls, the falling speed of the rail 320 is gradually increased, the falling speed of the anti-falling cross bar 330 is driven to increase, and the blocking fork plate 271 and the blocking fork 272 are not deflected to the original position, the anti, the card hinders shift fork 272 and supports and live and prevent weighing down horizontal pole 330, and then support track 320, reach the purpose that prevents that lift scaffold from falling, the eccentric gravity reset structure that the card hinders shift fork 272 and triggers the two shift forks of shift fork 282 all adopt, realize the torsion pendulum and reset under the effect of dead weight gravity, thereby it is great to have avoided traditional shift fork working radius space, and the structure external force that needs the installation spring realizes resetting, simple structure is easy and simple to handle, and then the effectual current fork formula of improving is prevented weighing down protection device's spring and is broken down the back, the problem that the shift fork resets is not convenient for.
The third connecting pin is pulled out, the weight sleeve 276 can be removed or added, the weight difference between the two ends of the blocking shift fork plate 271 is changed by increasing or decreasing the weight sleeve 276, the deflection and recovery speed of the blocking shift fork plate 271 and the blocking shift fork 272 is changed, the falling process is further adjusted, the blocking shift fork 272 can effectively block the track assembly 300, and the situation that the blocking shift fork 272 blocks the anti-falling cross rod 330 in the uniform-speed falling process of the track 320 is also reduced.
In the process that the track assembly 300 slides along the outer wall of the sliding roller 221, the sliding roller 221 rotates along with the track assembly 300, resistance between the track assembly 300 and the sliding roller 221 is reduced, sliding of the track assembly 300 is facilitated, when the sliding roller 221 or the thrust ball bearing 222 needs to be maintained, the connecting nut 224 rotates, the connecting nut 224 gradually leaves the shaft body 2231 through the thread transmission principle, then the connecting nut 224 is released, the shaft body 2231 is pulled out, the sliding roller 221 or the thrust ball bearing 222 can be disassembled to be replaced, installation is carried out according to the sequence opposite to the detaching direction, and the replacing process is simple.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.