CN211573350U - A scalable automatic locking formula vertical ladder for going up construction platform down - Google Patents
A scalable automatic locking formula vertical ladder for going up construction platform down Download PDFInfo
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- CN211573350U CN211573350U CN201921615824.4U CN201921615824U CN211573350U CN 211573350 U CN211573350 U CN 211573350U CN 201921615824 U CN201921615824 U CN 201921615824U CN 211573350 U CN211573350 U CN 211573350U
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Abstract
The utility model provides a telescopic vertical ladder, this telescopic vertical ladder includes: a fixed ladder and a sliding ladder; the sliding ladder part is clamped on the fixed ladder and can be connected with the fixed ladder in a sliding mode to form a telescopic structure; the sliding ladder is provided with a retraction stopping piece for locking the sliding ladder to prevent the sliding ladder from sliding along a first preset direction; and an unlocking driving piece is arranged on the backspacing stopping piece and used for unlocking the sliding ladder when the telescopic structure is contracted. The utility model discloses telescopic vertical ladder length adjustment is convenient, and the scalable design that can automatic lock makes its upper and lower requirement that can various elevation operation platform personnel in the certain limit well, has improved personnel's operating efficiency and security for the progress of construction has reduced construction cost, solves the problem of the upper and lower platform difficulty of personnel in civil engineering, steel construction, machinery, the electrical installation process.
Description
Technical Field
The utility model relates to a civil engineering technical field particularly, relates to a telescopic vertical ladder.
Background
In the process of steel structure, machinery and electrical installation, constructors need to check construction conditions of various platforms from top to bottom frequently. Generally, for a platform with a height of more than 3 meters, a construction ladder stand is erected by adopting a method of combining a scaffold with a fastener, the ladder stand not only is time-consuming in installation and removal process and heavy in labor-consuming situation, but also occupies a large amount of resources during use (generally, for a certain ladder stand, the use frequency is not high), the construction cost is increased, and meanwhile, the construction efficiency is reduced.
In addition, for platforms with elevation within 4 m, temporary vertical ladders welded by materials such as channel steel, angle steel, reinforcing steel bars and the like on site are often used for people to get on and off. But the ladder stand manufactured on the construction site has different standards, so that the manufacturing quality and the safety can not be ensured. Meanwhile, the temporary vertical ladder welded on site is single and invariable in length and large in weight, and cannot meet the construction requirement on site.
Disclosure of Invention
In view of this, the utility model provides a telescopic vertical ladder aims at solving the problem that current scaffold frame cat ladder ann tears complicacy open and the unsatisfied length variation demand of fixed vertical ladder length.
The utility model provides a telescopic vertical ladder, this telescopic vertical ladder includes: a fixed ladder and a sliding ladder; the sliding ladder part is clamped on the fixed ladder and can be connected with the fixed ladder in a sliding mode to form a telescopic structure; the sliding ladder is provided with a retraction stopping piece for locking the sliding ladder to prevent the sliding ladder from sliding along a first preset direction; and an unlocking driving piece is arranged on the backspacing stopping piece and used for unlocking the sliding ladder when the telescopic structure is contracted.
Further, in the above-described telescopic vertical ladder, the retreat stopper includes: a plurality of stop blocks and buckles; the check blocks are arranged on the sliding ladder and arranged side by side along the length direction of the sliding ladder, and the buckles are arranged on the fixed ladder; the check block is provided with a clamping groove which is connected with the buckle in a matching way, and the buckle is abutted against and pressed on the wall surface of the sliding ladder where the check block is located or on the check block, so that the check block is clamped in the clamping groove when the check block retreats along with the sliding ladder in the extending process, and the check block and the sliding ladder are prevented from retreating.
Furthermore, the buckle is rotatably connected with the fixed ladder and used for rotating along the side wall of the block when the block slides along the second preset direction along with the sliding ladder, so that the block slides through the buckle.
Furthermore, an elastic reset piece is arranged between the buckle and the fixed ladder, and is used for pulling the buckle to reset after the stop block slides from the buckle so as to abut against and press on the sliding ladder.
Furthermore, according to the telescopic vertical ladder, the unlocking driving piece is arranged on the buckle of the retraction stopping piece and used for driving the buckle to rotate, so that the stop block can be abducted when the telescopic structure is retracted.
Furthermore, the sliding ladder is connected with a driving mechanism for driving the sliding ladder to slide along the fixed ladder, so that the telescopic structure can extend or contract.
Further, the retractable vertical ladder described above, wherein the drive mechanism comprises: a sheave assembly and a pull line; the pulley assembly is arranged on the sliding ladder, the fixed end of the traction rope is arranged on the fixed ladder, the free end of the traction rope bypasses the pulley assembly to drive the pulley assembly to slide along the traction rope, and the sliding ladder is driven to slide along the fixed ladder.
Further, the pulley component of the telescopic vertical ladder comprises at least two pulleys which are arranged side by side along the length direction of the sliding ladder.
Further, in the telescopic vertical ladder, the pulley at the sliding end of the pulley assembly, which is close to the sliding ladder, is located between the connecting position of the traction rope on the fixed ladder and the fixed end of the fixed ladder.
Furthermore, according to the telescopic vertical ladder, the free end of the traction rope is connected with the winch and used for retracting the traction rope to drive the sliding ladder to slide along the fixed ladder.
The utility model provides a telescopic vertical ladder, through the fixed ladder and the sliding ladder that are connected slidably, to form a telescopic structure, and then according to the height of the construction platform, the length of the telescopic structure is adjusted, so as to adapt to the height of the construction platform for construction use; meanwhile, the retraction stopping piece arranged on the sliding ladder is combined to lock the sliding ladder, so that the sliding ladder is prevented from sliding along a first preset direction, and the stability and the safety of the telescopic vertical ladder are ensured; and the unblock driving piece that sets up on the backspacing of preventing piece, with unblock when extending structure contracts the ladder that slides to make the ladder that slides slide along first predetermined direction under gravity or other effects, realize the effect of the ladder reciprocating motion that slides promptly, with the shrink that realizes this extending structure, and then the regulation that highly carries out this extending structure of adaptation construction platform, and can pack up the area in order to reduce this telescopic vertical ladder completely after the use, be convenient for telescopic vertical ladder's transport and transportation.
Compared with the prior art, this telescopic vertical ladder length adjustment is convenient, but the scalable design of automatic locking makes it can satisfy high various elevation work platform personnel's in the certain limit upper and lower requirement well, personnel's operating efficiency and security have been improved, the progress of construction has been accelerated, construction cost is reduced, solve civil engineering, the steel construction, machinery, in the electrical installation process, the passageway of construction platform about the personnel is set up and is taken time, take a lot of work, demolish and remove difficult scheduling problem, and optimized the preparation method that is used for all kinds of work platform's cat ladder from top to bottom. Meanwhile, the telescopic vertical ladder has the characteristics of light self weight, convenience in mounting, dismounting and transporting, capability of being operated by two persons, safety in use, strong universality and the like.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of an extended state of a telescopic vertical ladder provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of the telescopic vertical ladder provided by the embodiment of the present invention in a contracted state;
fig. 3 is a schematic structural view of a cross-sectional view of the telescopic vertical ladder at a pulley position according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a pulley provided in an embodiment of the present invention;
fig. 5 is a front view of a fixed ladder according to an embodiment of the present invention;
fig. 6 is a side view of a fixed ladder according to an embodiment of the present invention;
fig. 7 is a front view of the slide ladder according to the embodiment of the present invention;
fig. 8 is a side view of the slide ladder according to the embodiment of the present invention;
fig. 9 is a schematic structural view of a buckle provided in the embodiment of the present invention;
fig. 10 is a schematic structural view of the telescopic vertical ladder provided by the embodiment of the present invention in a sliding state;
fig. 11 is a schematic structural view of a baffle plate in the telescopic vertical ladder provided by the embodiment of the present invention sliding from a buckle;
fig. 12 is a schematic structural view of a baffle plate of the telescopic vertical ladder provided by the embodiment of the present invention being arranged at a buckle;
fig. 13 is the embodiment of the utility model provides a buckle rotates the structure sketch map of stepping down to the baffle in the telescopic vertical ladder.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 13, a preferred structure of the telescopic vertical ladder provided by the embodiment of the invention is shown. As shown in the figures, the telescopic vertical ladder comprises: a fixed ladder 1, a sliding ladder 2, a backspacing preventing piece 3, an unlocking driving piece and a driving mechanism 4; wherein the content of the first and second substances,
the sliding ladder 2 is partially clamped on the fixed ladder 1 and is connected with the fixed ladder in a sliding way to form a telescopic structure. Specifically, the fixed pedals 12 of the fixed ladder 1 are arranged between the fixed main material frameworks 11 on the left side and the right side of the fixed ladder 1 to connect the two fixed main material frameworks 11, and the structure of the sliding ladder 2 can be similar to that of the fixed ladder 1; the solid main material skeleton 11 of the left and right sides of fixed ladder 1 and the smooth main material skeleton 21 of the left and right sides of the ladder 2 that slides can adopt the aluminium alloy I-steel preparation, the solid footboard 12 of fixed ladder 1 and the smooth footboard 22 of the ladder 2 that slides can adopt the aluminium alloy channel-section steel to make, the tip of the solid footboard 12 of fixed ladder 1 can be fixed at the intermediate position between two first flange boards 111 of solid main material skeleton 11 top and bottom, the tip of the smooth footboard 22 of the ladder 2 that slides can be fixed at the intermediate position between two second flange boards 211 of the smooth main material skeleton 21 top and bottom of the ladder 2 that slides. The lengths of the fixed ladder 1 and the sliding ladder 2 can be confirmed according to actual conditions, and preferably, the length of the sliding ladder 2 is smaller than that of the fixed ladder 1 to ensure the safety of the telescopic vertical ladder. The fixed ladder 1 is different with the width of the ladder 2 that slides, so that realize the joint between the two, for example, the width of the ladder 2 that slides is less than the width of the fixed ladder 1, so that the ladder 2 that slides sets up in the top of the fixed ladder 1 (for the position shown in fig. 3), and through the second flange plate 211 of the below of two main material skeletons 21 that slide 2 block respectively in the draw-in groove between the first flange plate 111 of the top of two main material skeletons 11 of the fixed ladder 1 and the solid footboard 12, so that the second flange plate 211 can slide along the draw-in groove between first flange plate 111 and the solid footboard 12, and then realize the slide of the ladder 2 relative fixed ladder 1 length direction, thereby make and form extending structure, realize the regulation of its length, use in order to satisfy the construction of different heights. When the telescopic vertical ladder is used, the fixed end (the upper left end shown in figure 1) of the fixed ladder 1 is supported on the ground or a working surface, and the sliding ladder 2 is positioned above the fixed ladder 1 and is abutted against and pressed on a construction platform.
The slide ladder 2 is provided with a retreat stopper 3 for locking the slide ladder 2 to prevent the slide ladder 2 from sliding in a first preset direction (lower left end as viewed in fig. 2). Specifically, when the telescopic structure is extended, the sliding ladder 2 slides along the length direction of the fixed ladder 1 and according to a second preset direction (the upper right end shown in fig. 2); during the use, the ladder 2 that slides sets up in the top of fixed ladder 1, for the shrink under the effect of gravity when avoiding the ladder 2 that slides to use backs, backs down and stops 3 settings on the ladder 2 that slides to the locking slides ladder 2, and then prevents to slide ladder 2 and slide along first predetermined direction, thereby ensures the stability and the security of this telescopic vertical ladder. The retreat stopper 3 may be two, which are respectively provided at both sides of the slide ladder 2 to avoid the stability of the slide ladder 2.
For realizing this extending structure's shrink, it is provided with the unblock driving piece (not shown in the figure) on the back-off prevention piece 3, be used for unblock slide ladder 2 when extending structure shrinks, so that slide ladder 2 slides along first predetermined direction under gravity or other effects, realize slide ladder 2 reciprocating motion's effect promptly, in order to realize this extending structure's shrink, and then adapt to construction platform's the regulation that highly carries out this extending structure, and can pack up the area in order to reduce this telescopic vertical ladder completely after using, be convenient for telescopic vertical ladder's transport and transportation. The unlocking driving piece and the backspacing stopping piece 3 are arranged in a one-to-one correspondence mode so as to correspondingly unlock the locking of the backspacing stopping piece 3 to the sliding ladder 2. Wherein, the unblock driving piece can set up on the buckle 31 of the stopper 3 that backs for drive buckle 31 rotates, in order to give way the dog 32 of the stopper 3 that backs when extending structure contracts, thereby make dog 32 can slide from buckle 31 department, can avoid buckle 31 to the locking of slide 2. The unlocking driving member may be a connecting rope or other component, one end of the unlocking driving member is fixed on the buckle 31, and the other end of the unlocking driving member is a free end, so as to control the free end through other positions and further control the buckle 31, for example, the unlocking driving member may be pulled on the ground or a working surface to control the buckle 31 to rotate clockwise (relative to the position shown in fig. 13) to the abdicating position (as shown in fig. 13), so that the buckle 31 abdicating position of the stopper 32, and the sliding ladder 2 slides downwards along the fixed ladder 1 under the action of gravity, and the buckle 31 is not in contact with the stopper 32, thereby achieving contraction. The direction of the arrow in fig. 13 is the direction in which the unlocking actuator controls the rotation of the catch 31.
The sliding ladder 2 is connected with a driving mechanism 4 for driving the sliding ladder 2 to slide along the fixed ladder 1 so as to extend or contract the telescopic structure. Specifically, in order to realize the sliding of the sliding ladder 2, the driving mechanism 4 is connected with the sliding ladder 2 and can apply the driving force to the sliding ladder 2 so as to enable the sliding ladder 2 to slide along the fixed ladder 1, wherein the sliding ladder 2 can automatically slide along the first preset direction under the action of gravity, so the driving mechanism 4 is mainly used for applying to the sliding ladder 2 so as to enable the sliding ladder 2 to slide along the second preset direction, so as to realize the extension of the telescopic structure. Of course, the driving mechanism 4 can also apply a driving force to the sliding ladder 2 so as to enable the sliding ladder 2 to slide along the slot of the fixed ladder 1 and retract to the fixed ladder 1, or can respectively drive the telescopic structure to extend and retract through two driving members.
Obviously, the telescopic vertical ladder provided by the embodiment forms a telescopic structure through the fixed ladder 1 and the sliding ladder 2 which are connected in a sliding manner, and further adjusts the length of the telescopic structure according to the height of the construction platform, so that the telescopic vertical ladder is suitable for the height of the construction platform for construction; meanwhile, the backspacing stopping piece 3 arranged on the sliding ladder 2 is combined to lock the sliding ladder 2, so that the sliding ladder 2 is prevented from sliding along a first preset direction, and the stability and the safety of the telescopic vertical ladder are ensured; and, the unblock driving piece that sets up on the backspacing of preventing piece 3, with unblock slide ladder 2 when extending structure contracts, so that slide ladder 2 slides along first predetermined direction under gravity or other effects, realize slide ladder 2 reciprocating motion's effect promptly, with the shrink that realizes this extending structure, and then the regulation that highly carries out this extending structure of adaptation construction platform, and can pack up the area in order to reduce this telescopic vertical ladder completely after the use, be convenient for telescopic vertical ladder's transport and transportation.
Compared with the prior art, this telescopic vertical ladder length adjustment is convenient, the scalable design that can automatic locking makes it can satisfy various elevation operation platform personnel's of high 8 meters within ranges upper and lower requirements well, personnel's operating efficiency and security have been improved, the progress of construction has been accelerated, construction cost is reduced, solve civil engineering, the steel construction, machinery, in the electrical installation process, the passageway of construction platform is set up time-consuming, the work is taken, demolish and remove difficult scheduling problem, and the preparation method of the cat ladder that is used for all kinds of operation platforms from top to bottom has been optimized. Meanwhile, the telescopic vertical ladder has the characteristics of light self weight, convenience in mounting, dismounting and transporting, capability of being operated by two persons, safety in use, strong universality and the like.
With continued reference to fig. 1-8, the drive mechanism 4 includes: pulley assemblies and pull cords 42; wherein the content of the first and second substances,
the pulley assembly sets up on the ladder 2 that slides, and the stiff end setting of haulage rope 42 is on fixed ladder 1 to, the pulley assembly is walked around to the free end of haulage rope 42 for drive pulley assembly slides along haulage rope 51, slide along fixed ladder 1 with the drive ladder 2 that slides. Specifically, the pulley assembly is a fixed pulley block, which is fixed on the sliding ladder 2, so as to drive the sliding ladder 2 to slide along the fixed ladder 1 along with the pulley assembly by the traction of the traction rope 42. The free end of the pull-cord 42 can be pulled manually to slide the pull-cord 42 under the guidance of the pulley assembly, so that the slide ladder 2 slides along the fixed ladder 1. In particular, pulling the pulling rope 42 causes the slide ladder 2 to slide along the second predetermined direction, thereby achieving the extension of the telescopic structure. For the contraction, the free end of the pulling rope 42 can be released, and after use, the telescopic vertical ladder is obliquely leaned on the construction platform, so that the sliding ladder 2 is higher than the fixed ladder 1, the sliding ladder 2 automatically slides along a first preset direction under the action of gravity, and the retraction of the telescopic structure is realized. Certainly, the pulling rope 42 can also be driven by other manners, for example, the free end of the pulling rope 42 can be connected with a winch (not shown in the figure) to wind and unwind the pulling rope 42 to drive the sliding ladder 2 to slide along the fixed ladder 1, the free end of the pulling rope 42 can be wound on a winding drum of the winch, the sliding ladder 2 can slide along the fixed ladder 1 by winding and unwinding the pulling rope 42, namely, the winch drives the sliding ladder 2 to slide along the second preset direction when receiving the pulling rope 42, and the winch drives the sliding ladder 2 to slide along the first preset direction when unwinding the pulling rope 42. Of course, other modes can be adopted, and the present embodiment is not limited in any way.
With continued reference to fig. 1-8, the sheave assembly includes at least two sheaves 41 disposed side-by-side along the length of the ramp 2. Specifically, the pulleys 41 are fixed pulleys, which may be respectively disposed at both ends of the slide ladder 2 to ensure stability of sliding of the slide ladder 2. The pulley 41 of the pulley assembly near the sliding end (the upper left end as shown in fig. 1) of the sliding ladder 2 is located between the connecting position of the traction rope 42 on the fixed ladder 1 and the fixed end of the fixed ladder 1, so that the sliding ladder 2 slides along the second preset direction under the action of the traction rope 42, and the extension of the telescopic structure is realized.
With continued reference to fig. 8, the pulley 41 includes a pulley body 411, a pulley shaft 412, and a pulley yoke 413; the pulley shaft 4112 is fixed to the sliding ladder 2 by the pulley yoke 413, and the pulley body 411 is sleeved on the pulley shaft 412 and slidably connected to the pulley shaft 412, so as to fix the pulley body 411.
With continued reference to fig. 1 to 13, the retreat stopper 3 includes: a plurality of stoppers 31, catches 32 and elastic restoring pieces 33; wherein the content of the first and second substances,
the dog 31 sets up on the ladder 2 that slides and sets up side by side along the length direction of the ladder 2 that slides, and buckle 32 sets up on fixed ladder 1. Specifically, the stoppers 31 are uniformly distributed along the length direction of the sliding ladder 2 and the stoppers 31 are equally spaced apart from each other, so that the sliding ladder 2 can be locked at an expected position, and the length of the telescopic vertical ladder can be controlled to a length suitable for a construction platform.
The stopper 31 is provided with a clamping groove 311 which is connected with the buckle 32 in a matching manner, and the buckle 32 is pressed on the wall surface 23 where the stopper 31 is located on the sliding ladder 2 or the stopper 31 so as to be clamped in the clamping groove 311 when the stopper 31 retracts along with the extension process of the sliding ladder 2, so that the stopper 31 and the sliding ladder 2 are prevented from retracting. Specifically, this extending structure extension in-process or during the use, in order to avoid the ladder 2 that slides to shrink under the effect of gravity when using and roll back, card establishes the groove 321 and sets up on the diapire of dog 31, when the ladder 2 that slides downwards moves along first predetermined direction promptly, dog 31 synchronous motion thereupon for buckle 32 card establishes in calorie establishes the groove 311, in order to stop the downstream of dog 32 through buckle 32. To avoid the interference of the catch 32 with the sliding of the sliding ladder 2 along the second predetermined direction, it is preferable that the catch 32 is rotatably connected with the fixed ladder 1, so that the catch 32 rotates clockwise (relative to the position shown in fig. 9) along with the side wall of the catch 31 when the catch 31 slides along the sliding ladder 2 along the second predetermined direction, so that the catch 31 slides over the catch 32. Specifically, the fixing ladder 1 may be provided with a latch shaft 13, and the latch 32 may be rotatably connected to the latch shaft 13 to enable relative rotation therebetween.
An elastic reset piece 33 is arranged between the buckle 32 and the fixed ladder 1, and is used for pulling the buckle 31 to reset after the stopper 31 slides from the buckle 32 along a first preset direction so as to press on the sliding ladder 2. Specifically, the elastic restoring member 33 may be a spring, one end of which is connected to the catch 32, the other end of which is connected to the catch shaft 13, and the catch 32 is compressed when rotating clockwise along the side wall of the catch 31 when the catch 31 slides along the sliding ladder 2 in the second preset direction, so that when the catch 31 slides along the sliding ladder 2 to above the catch 32 (relative to the position shown in fig. 10), the elastic restoring member 33 applies a restoring force to the catch 32, so that the catch rotates counterclockwise to abut against the wall surface 23, thereby ensuring that the catch 32 always abuts against the wall surface 23 or the catch 31.
In summary, the telescopic vertical ladder provided by the embodiment forms a telescopic structure through the fixed ladder 1 and the sliding ladder 2 which are slidably connected, and further adjusts the length of the telescopic structure according to the height of the construction platform, so as to adapt to the height of the construction platform for construction; meanwhile, the backspacing stopping piece 3 arranged on the sliding ladder 2 is combined to lock the sliding ladder 2, so that the sliding ladder 2 is prevented from sliding along a first preset direction, and the stability and the safety of the telescopic vertical ladder are ensured; and, the unblock driving piece that sets up on the backspacing of preventing piece 3, with unblock slide ladder 2 when extending structure contracts, so that slide ladder 2 slides along first predetermined direction under gravity or other effects, realize slide ladder 2 reciprocating motion's effect promptly, with the shrink that realizes this extending structure, and then the regulation that highly carries out this extending structure of adaptation construction platform, and can pack up the area in order to reduce this telescopic vertical ladder completely after the use, be convenient for telescopic vertical ladder's transport and transportation.
Compared with the prior art, this telescopic vertical ladder length adjustment is convenient, the scalable design that can automatic locking makes it can satisfy various elevation operation platform personnel's of high 8 meters within ranges upper and lower requirements well, personnel's operating efficiency and security have been improved, the progress of construction has been accelerated, construction cost is reduced, solve civil engineering, the steel construction, machinery, in the electrical installation process, the passageway of construction platform is set up time-consuming, the work is taken, demolish and remove difficult scheduling problem, and the preparation method of the cat ladder that is used for all kinds of operation platforms from top to bottom has been optimized. Meanwhile, the telescopic vertical ladder has the characteristics of light self weight, convenience in mounting, dismounting and transporting, capability of being operated by two persons, safety in use, strong universality and the like.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A telescopic vertical ladder, characterized by comprising: a fixed ladder (1) and a sliding ladder (2); wherein the content of the first and second substances,
the sliding ladder (2) is partially clamped on the fixed ladder (1) and can be connected with the fixed ladder in a sliding way to form a telescopic structure;
the sliding ladder (2) is provided with a retraction stopping piece (3) for locking the sliding ladder (2) to stop the sliding ladder (2) from sliding along a first preset direction;
an unlocking driving piece is arranged on the retraction stopping piece (3) and used for unlocking the sliding ladder (2) when the telescopic structure is retracted.
2. A telescopic vertical ladder according to claim 1, characterised in that the back-off preventer (3) comprises: a plurality of stoppers (31) and buckles (32); wherein the content of the first and second substances,
the stop blocks (31) are arranged on the sliding ladder (2) and arranged side by side along the length direction of the sliding ladder (2), and the buckles (32) are arranged on the fixed ladder (1);
the anti-falling device is characterized in that a clamping groove (311) which is connected with the buckle (32) in a matched mode is formed in the stop block (31), in addition, the buckle (32) is pressed on the sliding ladder (2) on the wall surface (23) where the stop block (31) is located or on the stop block (31) in a supported mode, the stop block (31) is clamped in the clamping groove (311) along with the sliding ladder (2) in the extending process of the sliding ladder, and therefore the stop block (31) and the sliding ladder (2) are prevented from returning.
3. The telescopic vertical ladder of claim 2,
the buckle (32) is rotatably connected with the fixed ladder (1) and used for enabling the buckle (32) to rotate along with the side wall of the stop block (31) when the stop block (31) slides along the sliding ladder (2) along the second preset direction, so that the stop block (31) slides through the buckle (32).
4. The telescopic vertical ladder of claim 3,
the buckle (32) and be provided with elasticity piece (33) that resets between fixed ladder (1) for dog (31) certainly buckle (32) department pulls after sliding buckle (32) resets, in order to support press on the ladder (2) that slides.
5. The telescopic vertical ladder of claim 3,
the unlocking driving piece is arranged on a buckle (32) of the retraction stopping piece (3) and used for driving the buckle (32) to rotate so as to enable the stop block (31) to yield when the telescopic structure contracts.
6. Telescopic ladder according to any one of claims 1-5,
the sliding ladder (2) is connected with a driving mechanism (4) for driving the sliding ladder (2) to slide along the fixed ladder (1) so as to extend or contract the telescopic structure.
7. Telescopic ladder according to claim 6, characterized in that the drive mechanism (4) comprises: a sheave assembly and a pull-cord (42); wherein the content of the first and second substances,
the pulley assembly is arranged on the sliding ladder (2), the fixed end of the traction rope (42) is arranged on the fixed ladder (1), the free end of the traction rope (42) bypasses the pulley assembly to drive the pulley assembly to slide along the traction rope (42) so as to drive the sliding ladder (2) to slide along the fixed ladder (1).
8. The telescopic ladder according to claim 7, wherein the pulley assembly comprises at least two pulleys (41) arranged side by side along the length of the ladder (2).
9. The telescopic vertical ladder of claim 8,
and a pulley (41) which is close to the sliding end of the sliding ladder (2) in the pulley assembly is positioned between the connecting position of the traction rope (42) on the fixed ladder (1) and the fixed end of the fixed ladder (1).
10. The telescopic vertical ladder of claim 7,
the free end of the traction rope (42) is connected with a winch and used for retracting the traction rope to drive the sliding ladder (2) to slide along the fixed ladder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615824.4U CN211573350U (en) | 2019-09-26 | 2019-09-26 | A scalable automatic locking formula vertical ladder for going up construction platform down |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615824.4U CN211573350U (en) | 2019-09-26 | 2019-09-26 | A scalable automatic locking formula vertical ladder for going up construction platform down |
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| Publication Number | Publication Date |
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| CN211573350U true CN211573350U (en) | 2020-09-25 |
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| CN201921615824.4U Active CN211573350U (en) | 2019-09-26 | 2019-09-26 | A scalable automatic locking formula vertical ladder for going up construction platform down |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233173A (en) * | 2021-11-18 | 2022-03-25 | 武汉船用机械有限责任公司 | Tower climbing device for offshore wind power tower |
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2019
- 2019-09-26 CN CN201921615824.4U patent/CN211573350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233173A (en) * | 2021-11-18 | 2022-03-25 | 武汉船用机械有限责任公司 | Tower climbing device for offshore wind power tower |
| CN114233173B (en) * | 2021-11-18 | 2023-09-15 | 武汉船用机械有限责任公司 | Tower climbing device for offshore wind power tower |
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