CN109057310B - Falling protector for lifting scaffold - Google Patents
Falling protector for lifting scaffold Download PDFInfo
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- CN109057310B CN109057310B CN201810877951.5A CN201810877951A CN109057310B CN 109057310 B CN109057310 B CN 109057310B CN 201810877951 A CN201810877951 A CN 201810877951A CN 109057310 B CN109057310 B CN 109057310B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
- E04G3/32—Hoisting devices; Safety devices
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- Movable Scaffolding (AREA)
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Abstract
The invention discloses a falling protector for a lifting scaffold, which comprises a frame body and a security falling wheel; the anti-falling wheel is characterized by further comprising a sliding block arranged on the anti-falling wheel or the radial support lugs, wherein the anti-falling wheel or the radial support lugs are provided with sliding grooves, the sliding grooves are strip-shaped grooves, the length direction of the sliding grooves is along the radial direction of the anti-falling wheel, the sliding block is arranged on the anti-falling wheel or the radial support lugs through the sliding grooves, and the sliding block can slide along the length direction of the sliding grooves in the rotating process of the anti-falling wheel; the anti-falling device also comprises a stop block arranged on the frame body, and when the rotating speed of the anti-falling wheel exceeds a set threshold value in the process that the sliding block rotates along with the anti-falling wheel, the stop block is locally or completely fallen into the power transmission track of the sliding block; when the slide block and the stop block act, the stop block applies resistance to the slide block to prevent the slide block from further rotating. The falling protector has simple structure and reliable performance.
Description
Technical Field
The invention relates to the technical field of instruments for building construction, in particular to a falling protector for a lifting scaffold.
Background
The lifting scaffold equipment is a novel scaffold which is rapidly developed in the early period of this century, and has important influence on the progress of construction technology in China.
The lifting scaffold is an external scaffold which is erected at a certain height, attached to an engineering structure, can climb or descend along with the engineering structure layer by depending on self lifting equipment and devices, and is provided with an anti-overturning and anti-falling device, wherein the anti-falling device is an important safety accessory on the lifting scaffold, and can restrain a scaffold when the scaffold abnormally falls, so that the aim of avoiding accidents is fulfilled.
Among the prior art, utility model patent for application number 201020668449.2 discloses a concrete attached lift scaffold anti-falling device for construction, and it still has simple structure, sensitive reliable, the short characteristics of distance of preventing falling on the basis that the performance prevented scaffold frame from falling unusually.
The technical problem to be solved urgently by technical personnel in the field is to perform further structural optimization on the existing falling protector for preventing falling of a scaffold so as to further develop the building construction level of China.
Disclosure of Invention
Aiming at the problem that the technical problem to be solved urgently by technical personnel in the field is solved by further optimizing the structure of the conventional falling protector for preventing the scaffold from falling so as to further develop the building construction level in China, the invention provides the falling protector for the lifting scaffold, and the falling protector is simple in structure and reliable in performance.
The invention provides a falling protector for a lifting scaffold, which solves the problems through the following technical key points: the anti-falling device for the lifting scaffold comprises a frame body and anti-falling wheels arranged on the frame body, wherein the anti-falling wheels are arranged on the frame body through wheel shafts and can rotate around the axis of the anti-falling wheels; the anti-falling wheel is characterized by further comprising a sliding block arranged on the anti-falling wheel or the radial support lugs, wherein the anti-falling wheel or the radial support lugs are provided with sliding grooves, the sliding grooves are strip-shaped grooves, the length direction of the sliding grooves is along the radial direction of the anti-falling wheel, the sliding block is arranged on the anti-falling wheel or the radial support lugs through the sliding grooves, and the sliding block can slide along the length direction of the sliding grooves in the rotating process of the anti-falling wheel;
the anti-falling device also comprises a stop block arranged on the frame body, and when the rotating speed of the anti-falling wheel exceeds a set threshold value in the process that the sliding block rotates along with the anti-falling wheel, the stop block is locally or completely fallen into the power transmission track of the sliding block;
when the slide block and the stop block act, the stop block applies resistance to the slide block to prevent the slide block from further rotating.
In the prior art, as the utility model discloses a technique that application number is 201020668449.2 shows, be provided with the guide rail on the lifting foot hand rack, install many horizontal poles on the guide rail, and many horizontal poles arrange along the extending direction of guide rail in proper order, at the lifting foot hand rack in-process of releasing downwards, from last to down, the horizontal pole in proper order with prevent weighing down the epaxial radial journal stirrup contact of taking turns, horizontal pole and radial journal stirrup in-process, the horizontal pole is radial journal stirrup application force, it rotates around self axis to force to prevent weighing down the wheel with last power, lifting foot hand rack falling speed is faster promptly, prevent weighing down the wheel and rotate faster, and the slider receives spout restraint cell wall, rotates along with preventing weighing down the wheel constant.
In this scheme, the spout that sets up is for preventing weighing down the installation station of taking turns or radial journal stirrup top shoe, in the rotation process of preventing weighing down the wheel, because the slider can slide along the length direction of spout, when the slider receives the restraint of chute wall face to rotate to preventing weighing down different positions on the wheel circumferencial direction, according to preventing weighing down the rotational speed difference of wheel, the slider is different in the ascending position of spout length direction, go up the slider in the ascending position decision slider of spout length direction and prevent weighing down the distance of wheel axis, prevent weighing down the rotational speed of wheel promptly and influence the movement track of slider, concrete movement track is corresponding with concrete rotational speed promptly.
Like this, when the rotational speed of preventing weighing down the wheel exceeded and set for the threshold value, promptly the falling speed of scaffold frame exceeded with when setting for the value that the threshold value corresponds, the dog is local or all to fall in the fortune work orbit of slider, and like this, when the slider rotated to dog place position, the accessible dog exerted further pivoted resistance for the slider, and like this, the turned angle of radial journal stirrup slows down or the position of radial journal stirrup in the space is locked, and when horizontal pole on the scaffold frame contacted with radial journal stirrup, further fall through radial journal stirrup and exert the resistance for the scaffold frame, reach the purpose of avoiding the too fast whereabouts of scaffold frame, play the effect of preventing weighing down promptly.
As a person skilled in the art, the above set threshold value can be set to a specific value according to engineering practice in combination with the dimensioning of the present fall arrester. If the descending speed of the track is set to be 1m/s, the specific rotating speed value of the anti-falling wheel is a threshold value. In this way, it is possible to realize: when the rotating speed of the anti-falling wheel exceeds the set threshold value correspondingly, the purpose that the stop block can be contacted with the sliding block is achieved; when the rotating speed of the anti-falling wheel is smaller than or equal to the set threshold value, the stop block is not in contact with the sliding block, namely the anti-falling device does not block the scaffold to release downwards.
In the scheme, the rotation restraint of the anti-falling wheel is realized by influencing the motion track of the sliding block through the rotating speed of the anti-falling wheel and the interaction of the stop block and the sliding block, and the scheme has simple structure and is convenient to process, manufacture and maintain; meanwhile, compared with the anti-falling constraint scheme which utilizes the interaction of the anti-falling swing needle and the anti-falling clamping wheel in the prior art, the anti-falling constraint scheme has the advantages that the interaction between the stop block and the slide block is avoided in the normal falling process of the scaffold, and the stop block interacts with the slide block only when the rotating speed of the anti-falling wheel exceeds a certain value, so that the chance of interaction between the slide block and the stop block in the whole working process of the anti-falling device is small, and the problems of short service life or low reliability caused by fatigue of parts in the scheme can be effectively avoided; meanwhile, although the sliding block can slide along the sliding groove in the rotation process of the anti-falling wheel, when the stop block is not in contact with the sliding block, the falling of the track does not influence the acting force between the sliding block and the sliding groove, so that the situation of severe friction does not exist between the sliding block and the sliding groove.
As the technical personnel in the field, in the process of playing the functions of the anti-falling wheel, the radial support lugs are required to be acted with the cross rods on the guide rails to realize the follow-up between the anti-falling wheel and the rails, so that the movement tracks of the stop blocks and the radial support lugs are required to be staggered in order to avoid the influence of the action of the stop blocks and the radial support lugs on the rotation of the anti-falling wheel. Simultaneously, the dog does not influence the rotation of preventing weighing down the wheel when the rotational speed of preventing weighing down the wheel is less than preset threshold value, as the technical personnel in this field, because the general level setting of horizontal pole on the scaffold frame of prior art, so the shaft of preventing weighing down the wheel is preferably installed to be that the axis lies in the horizontal direction under the user state, like this, above spout owing to extend along the radial direction of preventing weighing down the wheel, as technical personnel in this field, the more the injecing is: in the rotation process of the sliding block along with the anti-falling wheel, when the rotation speed of the anti-falling wheel exceeds a set threshold value, the block partially or completely falls into the power transmission track of the sliding block, and the realization is realized by depending on the specific position of the block actually: when the axis of the anti-falling wheel is located in the horizontal direction, the stop block is preferably arranged to be fixed on the frame body through a fixed end, the free end of the stop block faces the anti-falling wheel, the stop block is located above the axis of the anti-falling wheel, the upper portion comprises the upper portion and the side upper portion, and the sliding block falls back after the rotating speed of the anti-falling wheel is reduced, so that the scaffold can be further released, and the stop block is preferably arranged to be located above the scaffold. However, as a person skilled in the art, if the scaffold is not considered to be released further, for example, the further release is in the form of manually pulling a sliding block or a stop, the stop can also be arranged below the axis of the anti-falling wheel.
The further technical scheme is as follows:
as the technicians in the field, because the position between the radial lugs is required to be matched with the relative position of the cross bar on a specific scaffold, and any radial lug can restrain the scaffold from further rapid falling, in order to ensure that the stop block can apply rotation restraint to the anti-falling wheel in time when the rotating speed of the anti-falling wheel rises, the arrangement is as follows: the slider is a plurality of, and a plurality of sliders are arranged along the circumference direction interval of preventing weighing down the wheel. This scheme of adoption aims at realizing preventing falling the short purpose of distance.
For the horizontal pole that evenly sets up on the adaptation prior art on the track, set up to: a plurality of radial lugs are uniformly distributed in a ring shape relative to the axis of the anti-falling wheel.
As a specific implementation form, the axis direction of the anti-falling wheel is in the horizontal direction, each radial support lug is in a strip shape, and the length direction of each radial support lug is in the radial direction of the anti-falling wheel;
each radial support lug is provided with a sliding chute;
each radial support lug is provided with a sliding block through a sliding groove on the radial support lug;
the check block is positioned right above the anti-falling wheel, the upper end of the check block is connected with the frame body, and the lower end of the check block faces the anti-falling wheel. This scheme of adoption, when preventing weighing down the round rotational speed and improving, correspond the slider and the dog contact of moving to preventing weighing down the round top, then the weight of slider can the maximize the performance make the slider whereabouts break away from with the effect relation of dog for the scaffold frame can be released by further.
N radial lugs are arranged at two ends of the anti-falling wheel;
n is greater than or equal to 2, and all the radial lugs form N mounting stations for mounting the sliding block;
each installation station comprises two radial support lugs, one radial support lug is positioned at one end of the anti-falling wheel, the other radial support lug is positioned at the other end of the anti-falling wheel, and the two radial support lugs are in opposite relation along the axial direction of the anti-falling wheel;
a sliding block is installed on each installation station, and the two ends of each sliding block are embedded into the sliding grooves of the corresponding end radial support lugs. This scheme of adoption, including N sliders in other words, all install a slider on every installation station, in this scheme, to each slider, the both ends of slider all receive the restraint of the spout cell wall on corresponding radial journal stirrup, like this, when slider and dog interact, can make the slider have better shape stability, is retrained by the spout for the slider unilateral simultaneously, and the slider tip atress condition obtains optimizing, can guarantee the reliability of this safety hook in the use like this.
In order to obtain the ideal falling prevention distance, the N is set to be more than or equal to 5.
The invention has the following beneficial effects:
in the scheme, the rotation restraint of the anti-falling wheel is realized by influencing the motion track of the sliding block through the rotating speed of the anti-falling wheel and the interaction of the stop block and the sliding block, and the scheme has simple structure and is convenient to process, manufacture and maintain; meanwhile, compared with the anti-falling constraint scheme which utilizes the interaction of the anti-falling swing needle and the anti-falling clamping wheel in the prior art, the anti-falling constraint scheme has the advantages that the interaction between the stop block and the slide block is avoided in the normal falling process of the scaffold, and the stop block interacts with the slide block only when the rotating speed of the anti-falling wheel exceeds a certain value, so that the chance of interaction between the slide block and the stop block in the whole working process of the anti-falling device is small, and the problems of short service life or low reliability caused by fatigue of parts in the scheme can be effectively avoided; meanwhile, although the sliding block can slide along the sliding groove in the rotation process of the anti-falling wheel, when the stop block is not in contact with the sliding block, the falling of the track does not influence the acting force between the sliding block and the sliding groove, so that the situation of severe friction does not exist between the sliding block and the sliding groove.
Drawings
FIG. 1 is a schematic structural view of one embodiment of a fall arrester for a lifting scaffold according to the present invention;
fig. 2 is a structural schematic diagram of the anti-falling device for the lifting scaffold, which reflects the positions of the anti-falling wheel, the radial support lug, the sliding chute, the sliding block and the stop block relative to each other in use, in an embodiment of the invention.
The numbering in the figure is as follows: 1. the anti-falling device comprises a frame body, 2 anti-falling wheels, 3 radial support lugs, 4 sliding blocks, 5 sliding grooves, 6 stopping blocks.
Detailed Description
The present invention will be described in further detail with reference to examples, but the structure of the present invention is not limited to the following examples.
Example 1:
as shown in fig. 1 and 2, the anti-falling device for the lifting scaffold comprises a frame body 1 and an anti-falling wheel 2 arranged on the frame body 1, wherein the anti-falling wheel 2 is arranged on the frame body 1 through a wheel shaft, and the anti-falling wheel 2 can rotate around the axis of the anti-falling wheel; the anti-falling wheel is characterized by further comprising a sliding block 4 mounted on the anti-falling wheel 2 or the radial support lugs 3, wherein the anti-falling wheel 2 or the radial support lugs 3 are provided with sliding grooves 5, the sliding grooves 5 are strip-shaped grooves, the length direction of the sliding grooves 5 is along the radial direction of the anti-falling wheel 2, the sliding block 4 is mounted on the anti-falling wheel 2 or the radial support lugs 3 through the sliding grooves 5, and in the rotating process of the anti-falling wheel 2, the sliding block 4 can slide along the length direction of the sliding grooves 5;
the anti-falling device also comprises a stop block 6 arranged on the frame body 1, and when the rotating speed of the anti-falling wheel 2 exceeds a set threshold value in the process that the slide block 4 rotates along with the anti-falling wheel 2, the stop block 6 is partially or completely in the power transmission track of the slide block 4;
when the slider 4 interacts with the stop 6, the stop 6 exerts a resistance on the slider 4 that prevents the slider 4 from further rotating.
In the prior art, as the utility model discloses a technique that application number is 201020668449.2 shows, be provided with the guide rail on the lifting foot hand rack, install many horizontal poles on the guide rail, and many horizontal poles arrange along the extending direction of guide rail in proper order, in the lifting foot hand rack in-process of releasing downwards, from last to down, the horizontal pole in proper order with prevent weighing down radial journal stirrup 3 on the wheel 2 and contact, horizontal pole and radial journal stirrup 3 in-process, the horizontal pole is radial journal stirrup 3 and exerts force, force to prevent weighing down the wheel 2 and rotate around self axis with above-mentioned force, the lifting foot hand rack descending speed is faster promptly, prevent weighing down the wheel 2 and rotate faster, and slider 4 receives 5 cell wall restraints of spout, rotates along with preventing weighing down wheel 2.
In this scheme, the spout 5 that sets up is for preventing weighing down the wheel 2 go up or the installation station of slider 4 on the radial journal stirrup 3, in the rotation process of preventing weighing down wheel 2, because slider 4 can slide along the length direction of spout 5, when slider 4 receives the restraint of spout 5 wall to rotate to preventing weighing down different positions on the 2 circumference directions of wheel, according to preventing weighing down the rotational speed difference of wheel 2, slider 4 is different at 5 ascending positions of length direction of spout, the distance of the last slider 4 of position decision slider 4 on 5 length direction of spout and the 2 axes of weighing down wheel, the rotational speed that prevents weighing down wheel 2 promptly influences the motion trail of slider 4, concrete motion trail corresponds with concrete rotational speed promptly.
Thus, when the rotating speed of the anti-falling wheel 2 exceeds a set threshold value, namely the falling speed of the scaffold exceeds a value corresponding to the set threshold value, the stop block 6 partially or completely falls in the power running track of the slide block 4, and thus, when the slide block 4 rotates to the position of the stop block 6, the stop block 6 can apply resistance to further rotation to the slide block 4, so that the rotation angle of the radial support lug 3 is reduced or the position of the radial support lug 3 in the space is locked, and when a cross bar on the scaffold is in contact with the radial support lug 3, the resistance is applied to further falling of the scaffold through the radial support lug 3, so that the purpose of avoiding the scaffold from falling too fast is achieved, and the anti-falling effect is achieved.
As a person skilled in the art, the above set threshold value can be set to a specific value according to engineering practice in combination with the dimensioning of the present fall arrester. If the descending speed of the track is set to be 1m/s, the specific rotating speed value of the anti-falling wheel 2 is a threshold value. In this way, it is possible to realize: when the corresponding rotating speed of the anti-falling wheel 2 exceeds the set threshold value, the purpose that the stop block 6 can be contacted with the slide block 4 is achieved; when the rotating speed of the anti-falling wheel 2 is less than or equal to the set threshold value, the stop block 6 is not contacted with the slide block 4, namely the anti-falling device does not block the scaffold to be released downwards.
In the scheme, the rotation constraint of the anti-falling wheel 2 is realized by influencing the motion track of the sliding block 4 through the rotating speed of the anti-falling wheel 2 and the interaction of the stop block 6 and the sliding block 4, and the scheme has simple structure and is convenient to process, manufacture and maintain; meanwhile, in the working process, compared with the anti-falling constraint scheme which utilizes the interaction of the anti-falling swing needle and the anti-falling clamping wheel in the prior art, the anti-falling constraint scheme has the advantages that the stop block 6 and the slide block 4 have no interaction in the normal falling process of the scaffold, and the stop block 6 interacts with the slide block 4 only when the rotating speed of the anti-falling wheel 2 exceeds a certain value, so that the chance of interaction between the slide block 4 and the stop block 6 in the whole working process of the anti-falling device is small, and the problems of short service life or low reliability of parts in the scheme caused by fatigue can be effectively solved; meanwhile, although the sliding block 4 can slide along the sliding groove 5 in the rotating process of the anti-falling wheel 2, when the stop block 6 is not in contact with the sliding block 4, the falling of the track does not influence the acting force between the sliding block 4 and the sliding groove 5, so that the situation of severe friction does not exist between the sliding block 4 and the sliding groove 5, and compared with the acting force between an anti-falling swinging needle and an anti-falling clamping wheel in the existing anti-falling device, the anti-falling device has the advantages that the severe friction does not exist on parts in the scheme, so that the scheme also has the integrity of keeping the size and the assembly relation for a long time in terms of abrasion, and is favorable for the anti-falling.
As the technical personnel in the field, in the process of playing the function of the anti-falling wheel, the radial support lugs 3 are required to interact with the cross rods on the guide rails to realize the follow-up between the anti-falling wheel 2 and the rails, so that the movement tracks of the stop blocks 6 and the radial support lugs 3 are required to be staggered in order to avoid the influence of the interaction of the stop blocks 6 and the radial support lugs 3 on the rotation of the anti-falling wheel 2. Meanwhile, when the rotating speed of the anti-falling wheel 2 is lower than a preset threshold value, the stop block 6 does not influence the rotation of the anti-falling wheel 2, and as a person skilled in the art, because the transverse rod on the lifting scaffold in the prior art is generally horizontally arranged, the wheel shaft of the anti-falling wheel 2 is preferably installed in a use state to be located on the horizontal direction as the axis, so that the upper chute 5 extends along the radial direction of the anti-falling wheel 2 and is defined as a person skilled in the art: in the process that the sliding block 4 rotates along with the anti-falling wheel 2, when the rotating speed of the anti-falling wheel 2 exceeds a set threshold, the stop block 6 partially or completely falls into the power transmission track of the sliding block 4, and the implementation depends on the specific position of the stop block 6: when the axis of the anti-falling wheel 2 is located in the horizontal direction, the stop block 6 is preferably arranged to be fixed on the frame body 1 at a fixed end, the free end of the stop block 6 faces the anti-falling wheel 2, and the stop block 6 is located above the axis of the anti-falling wheel 2, the upper side comprises the right upper side and the side upper side, but the sliding block 4 falls back after the rotating speed of the anti-falling wheel 2 is reduced, so that the scaffold can be further released, and the stop block 6 is preferably arranged to be located right above. However, as the skilled person, if it is not considered how to achieve further release of the scaffold, for example, if the further release is in the form of manually toggling the slider 4 or the stop 6, the stop 6 may also be arranged below the axis of the anti-falling wheel 2.
Example 2:
as shown in fig. 1 and fig. 2, the present embodiment is further defined on the basis of embodiment 1: as the technicians in the field, because the relative position between the radial lugs 3 needs to be matched with the relative position of the cross bar on a specific scaffold, and any radial lug 3 can restrain the scaffold from further rapid falling, in order to ensure that the stop 6 can timely exert rotation restraint on the anti-falling wheel 2 when the rotating speed of the anti-falling wheel 2 rises, the arrangement is as follows: the slide blocks 4 are multiple, and the slide blocks 4 are arranged at intervals along the circumferential direction of the anti-falling wheel 2. This scheme of adoption aims at realizing preventing falling the short purpose of distance.
For the horizontal pole that evenly sets up on the adaptation prior art on the track, set up to: the radial lugs 3 are distributed uniformly in a ring shape relative to the axis of the anti-falling wheel 2.
As a specific implementation form, the axis direction of the anti-falling wheel 2 is in the horizontal direction, each radial lug 3 is in a strip shape, and the length direction of each radial lug 3 is in the radial direction of the anti-falling wheel 2;
each radial support lug 3 is provided with a sliding chute 5;
each radial support lug 3 is provided with a slide block 4 through a slide groove 5 thereon;
the stop block 6 is positioned right above the anti-falling wheel 2, the upper end of the stop block 6 is connected with the frame body 1, and the lower end of the stop block 6 faces the anti-falling wheel 2. This scheme of adoption, when preventing weighing down 2 rotational speeds of wheel and improving, correspond the slider 4 and the dog 6 contact of moving to preventing weighing down 2 tops of wheel, then the weight of slider 4 can the maximize the performance effect make the slider 4 whereabouts break away from with the effect relation of dog 6 for the scaffold frame can be further released.
The two ends of the anti-falling wheel 2 are provided with N radial lugs 3;
n is greater than or equal to 2, and all the radial lugs 3 form N mounting stations for mounting the sliding block 4;
each installation station comprises two radial support lugs 3, one radial support lug 3 is positioned at one end of the anti-falling wheel 2, the other radial support lug 3 is positioned at the other end of the anti-falling wheel 2, and the two radial support lugs 3 are in a facing relation along the axial direction of the anti-falling wheel 2;
all install a slider 4 on each installation station, and the both ends of slider 4 all imbed in the spout 5 of corresponding end radial journal stirrup 3. This scheme of adoption, including N slider 4 in other words, all install a slider 4 on every installation station, in this scheme, to each slider 4, the both ends of slider 4 all receive the restraint of 5 cell walls of spout on corresponding radial journal stirrup 3, like this, when slider 4 acts on with dog 6 mutually, can make the slider have better shape stability, be retrained by spout 5 for slider 4 unilateral simultaneously, the 4 tip atress condition of slider is optimized, can guarantee the reliability of this safety hook in the use like this.
In order to obtain the ideal falling prevention distance, the N is set to be more than or equal to 5.
The foregoing is a more detailed description of the present invention in connection with specific preferred embodiments thereof, and it is not intended that the specific embodiments of the present invention be limited to these descriptions. For those skilled in the art to which the invention pertains, other embodiments that do not depart from the gist of the invention are intended to be within the scope of the invention.
Claims (4)
1. The anti-falling device for the lifting scaffold comprises a frame body (1) and anti-falling wheels (2) arranged on the frame body (1), wherein the anti-falling wheels (2) are arranged on the frame body (1) through wheel shafts, and the anti-falling wheels (2) can rotate around the axes of the anti-falling wheels; the anti-falling wheel is characterized by further comprising a sliding block (4) arranged on the anti-falling wheel (2) or the radial support lugs (3), wherein the sliding block (5) is arranged on the anti-falling wheel (2) or the radial support lugs (3), the sliding groove (5) is a strip-shaped groove, the length direction of the sliding groove (5) is along the radial direction of the anti-falling wheel (2), the sliding block (4) is arranged on the anti-falling wheel (2) or the radial support lugs (3) through the sliding groove (5), and in the rotating process of the anti-falling wheel (2), the sliding block (4) can slide along the length direction of the sliding groove (5);
the anti-falling device is characterized by further comprising a stop block (6) arranged on the frame body (1), wherein in the process that the sliding block (4) rotates along with the anti-falling wheel (3), when the rotating speed of the anti-falling wheel (3) exceeds a set threshold value, the stop block (6) is partially or completely arranged in the power track of the sliding block (4);
when the sliding block (4) and the stop block (6) act, the stop block (6) applies resistance to the sliding block (4) to prevent the sliding block (4) from further rotating; the number of the sliding blocks (4) is multiple, and the sliding blocks (4) are arranged at intervals along the circumferential direction of the anti-falling wheel (2); the radial lugs (3) are uniformly distributed in a ring shape relative to the axis of the anti-falling wheel (2).
2. The fall arrester for lifting scaffolds according to claim 1, wherein the axis direction of the fall arresting wheel (2) is in the horizontal direction, each radial lug (3) is in the shape of a strip, and the length direction of each radial lug (3) is in the radial direction of the fall arresting wheel (2);
each radial support lug (3) is provided with a sliding chute (5);
each radial support lug (3) is provided with a sliding block (4) through a sliding groove (5) on the radial support lug;
the stop block (6) is positioned right above the anti-falling wheel (2), the upper end of the stop block (6) is connected with the frame body (1), and the lower end of the stop block (6) faces the anti-falling wheel (2).
3. The fall arrester for lifting scaffolds according to claim 2, wherein the fall-arresting wheel (2) is provided with N radial lugs (3) at both ends;
n is more than or equal to 2, and all the radial support lugs (3) form N mounting stations for mounting the sliding block (4);
each installation station comprises two radial support lugs (3), one radial support lug (3) is positioned at one end of the anti-falling wheel (2) and the other radial support lug (3) is positioned at the other end of the anti-falling wheel (2), and the two radial support lugs (3) are in opposite relation along the axial direction of the anti-falling wheel (2);
all install a slider (4) on each installation station, and the both ends of slider (4) all imbed in spout (5) of corresponding end radial journal stirrup (3).
4. A fall arrester for a lifting scaffold according to claim 3 wherein N is greater than or equal to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810877951.5A CN109057310B (en) | 2018-08-03 | 2018-08-03 | Falling protector for lifting scaffold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810877951.5A CN109057310B (en) | 2018-08-03 | 2018-08-03 | Falling protector for lifting scaffold |
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| Publication Number | Publication Date |
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| CN109057310A CN109057310A (en) | 2018-12-21 |
| CN109057310B true CN109057310B (en) | 2020-11-17 |
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| CN201810877951.5A Active CN109057310B (en) | 2018-08-03 | 2018-08-03 | Falling protector for lifting scaffold |
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| CN111706061A (en) * | 2020-05-26 | 2020-09-25 | 深圳市特辰科技股份有限公司 | Anti-falling climbing frame for centrifugal rotating wheel |
| CN112814357A (en) * | 2020-12-31 | 2021-05-18 | 深圳市特辰科技股份有限公司 | Shaft type centrifugal slider rotating wheel anti-falling climbing frame and assembling method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101302890A (en) * | 2008-06-30 | 2008-11-12 | 深圳市特辰科技有限公司 | Runner drop proof positioning type elevating scaffold and working method thereof |
| US20100006373A1 (en) * | 2008-07-14 | 2010-01-14 | Bodnar Jonathon M | Fall protection safety process & apparatus |
| CN104060811A (en) * | 2014-06-27 | 2014-09-24 | 成都嘉泽正达科技有限公司 | Attached multifunctional guide seat |
| CN208884970U (en) * | 2018-08-03 | 2019-05-21 | 四川省第六建筑有限公司 | Conducive to the catching device of construction safety |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302890A (en) * | 2008-06-30 | 2008-11-12 | 深圳市特辰科技有限公司 | Runner drop proof positioning type elevating scaffold and working method thereof |
| US20100006373A1 (en) * | 2008-07-14 | 2010-01-14 | Bodnar Jonathon M | Fall protection safety process & apparatus |
| CN104060811A (en) * | 2014-06-27 | 2014-09-24 | 成都嘉泽正达科技有限公司 | Attached multifunctional guide seat |
| CN208884970U (en) * | 2018-08-03 | 2019-05-21 | 四川省第六建筑有限公司 | Conducive to the catching device of construction safety |
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