CN219754446U - Movable precast beam construction safety cat ladder - Google Patents
Movable precast beam construction safety cat ladder Download PDFInfo
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- CN219754446U CN219754446U CN202321197901.5U CN202321197901U CN219754446U CN 219754446 U CN219754446 U CN 219754446U CN 202321197901 U CN202321197901 U CN 202321197901U CN 219754446 U CN219754446 U CN 219754446U
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- ladder frame
- support frame
- limiting
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- 238000010276 construction Methods 0.000 title claims abstract description 26
- 241000282326 Felis catus Species 0.000 title claims description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 230000008093 supporting effect Effects 0.000 claims description 45
- 230000000694 effects Effects 0.000 abstract description 15
- 230000009193 crawling Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a movable precast beam construction safety ladder which comprises a support frame, wherein the support frame is rotationally connected with a first ladder frame, the support frame is rotationally connected with a first hydraulic cylinder, and the output end of the first hydraulic cylinder is rotationally connected with the first ladder frame; the first ladder frame is rotationally connected with a plurality of first ladder plates along the length direction, and is provided with a first limiting mechanism for limiting the first ladder plates; the first ladder frame is connected with a second ladder frame in a sliding way, and the support frame is provided with a sliding mechanism for driving the second ladder frame to slide; the second ladder frame rotates along length direction and is connected with the second ladder board, and the second ladder frame is equipped with the second stop gear who carries out spacingly to the second ladder board, and the support frame lower extreme has set firmly a plurality of universal wheels, and the support frame all is equipped with the positioning mechanism that fixes a position the support frame along length direction's both ends. The utility model is convenient for realizing the effect of building the crawling ladder.
Description
Technical Field
The utility model relates to the field of bridge construction devices, in particular to a movable precast beam construction safety cat ladder.
Background
In the bridge engineering construction process, the prefabricated beam can be manufactured in advance and then transported to a construction site to be installed and fixed according to the position required by design, so that the construction efficiency is high, and the prefabricated beam is widely applied to bridge construction. When the precast beam is installed and fixed, constructors need to frequently operate and check the precast beam up and down so as to ensure the construction quality of the precast beam.
To the relevant technique among the above-mentioned, constructor need to carry out the operation to precast beam's different positions and when detecting, adopts the welded mode of reinforcing bar to build the cat ladder generally, or adopts a large amount of bolted connection structures to connect the cat ladder, and the cat ladder adopts steel generally, and the volume is great, and weight is heavier, need to transfer the cat ladder subassembly to predetermineeing the height, carries out the equipment connection to the cat ladder again, builds comparatively inconvenient to the cat ladder.
Disclosure of Invention
In order to facilitate the construction of the cat ladder, the utility model provides the movable precast beam construction safety cat ladder.
The utility model provides a movable precast beam construction safety cat ladder, which adopts the following technical scheme:
the movable precast beam construction safety cat ladder comprises a support frame, wherein the support frame is rotationally connected with a first ladder frame, the support frame is rotationally connected with a first hydraulic cylinder, and the output end of the first hydraulic cylinder is rotationally connected with the first ladder frame; the first ladder frame is rotationally connected with a plurality of first ladder plates along the length direction, and is provided with a first limiting mechanism for limiting the first ladder plates; the first ladder frame is connected with a second ladder frame in a sliding way, and the support frame is provided with a sliding mechanism for driving the second ladder frame to slide; the second ladder frame rotates along length direction and is connected with the second ladder board, and the second ladder frame is equipped with the second stop gear who carries out spacingly to the second ladder board, and the support frame lower extreme has set firmly a plurality of universal wheels.
Through adopting above-mentioned technical scheme, positioning mechanism locks the support frame position, and the output of first pneumatic cylinder stretches out and promotes first ladder frame and rotate, adjusts the angle of first ladder frame, and slide mechanism drives the second ladder frame and moves along the length direction of first ladder frame, adjusts the second ladder frame to preset position, and first stop gear and second stop gear adjust first riser and second riser respectively, make first riser and second riser keep the level, be convenient for realize the effect of building the cat ladder.
Optionally, the first limiting mechanism comprises two first motors, two first screw rods, two first sliding blocks and a plurality of first limiting rods, the two ends of the first ladder frame in the width direction are provided with first sliding grooves, the two first sliding blocks are in sliding connection with the first ladder frame through the corresponding first sliding grooves, and the two first sliding blocks are in contact with the first ladder frame; the two ends of the first limiting rod along the length direction are fixedly connected with the corresponding first sliding blocks respectively, and the first limiting rod is abutted against the corresponding first ladder plate; the two first lead screws are rotationally connected with the first ladder frame and are in threaded connection with the corresponding first sliding blocks, the two first motors are fixedly connected with the first ladder frame, and output shafts of the two first motors are respectively and fixedly connected with the corresponding first lead screws.
Through adopting above-mentioned technical scheme, two first motors drive first slider simultaneously in first spout through the first lead screw that is connected and slide, and two first sliders drive first gag lever post to deviating from the direction motion of first motor, and first gag lever post promotes first riser and rotates, is favorable to realizing the effect of adjusting first riser.
Optionally, two rotation shafts of the first ladder plate are all sleeved with limiting torsion springs, and two connecting ends of the limiting torsion springs are fixedly connected with the first ladder plate and the first ladder frame respectively.
Through adopting above-mentioned technical scheme, spacing torsional spring is spacing to first riser, is favorable to realizing that first riser is inconsistent with first gag lever post effect.
Optionally, the sliding mechanism is provided with two groups along the width direction of the supporting frame, the sliding mechanism comprises a second motor, a reel, a guide wheel, a pull rod and a rope, the second motor is fixedly connected with the supporting frame, an output shaft of the second motor is fixedly connected with the reel, the guide wheel is rotatably connected with one end of the first ladder frame, which is far away from the second motor, and one end of the pull rod, which is close to the second motor, is fixedly connected with the second ladder frame; one end of the rope is fixedly connected with the pull rod, one end of the rope deviating from the pull rod is fixedly connected with the reel, and the rope is abutted against the guide wheel.
Through adopting above-mentioned technical scheme, the output of second motor drives the reel and rotates, and the reel pulls the rope, makes the rope twine to the reel on, and the guide wheel pulls the rope, makes the rope pass through pull rod pulling second ladder frame, is favorable to realizing driving second ladder frame and carries out gliding effect.
Optionally, the support frame is equipped with two sets of supporting mechanism that support the second ladder frame, and supporting mechanism includes first branch, second branch and supporting shoe, and first branch is connected with the support frame, and the one end that first branch deviates from the support frame is connected with the second ladder frame, and supporting shoe and second branch fixed connection, the spacing groove has been seted up to the one end that the supporting shoe deviates from the second branch, and the second ladder frame is inconsistent with the second branch through the spacing groove.
Through adopting above-mentioned technical scheme, first branch is connected with the support frame through the bolt, and second branch is connected with first branch through the bolt, and first branch, second branch and supporting shoe cooperation support the second ladder frame, are favorable to promoting the stability of second ladder frame.
Optionally, two diagonal rods are fixedly arranged on the first supporting rod, the two diagonal rods are oppositely arranged, and one ends of the two diagonal rods, deviating from the first supporting rod, are connected with the supporting frame through bolts.
Through adopting above-mentioned technical scheme, two diagonal members cooperate to support first branch, are favorable to promoting the stability of first branch.
Optionally, the first ladder frame has set firmly a plurality of first guard bars along length direction, and the second ladder frame has set firmly a plurality of second guard bars along length direction, and the radius of second guard bar is greater than the radius of first guard bar.
Through adopting above-mentioned technical scheme, first guard bar and second guard bar are favorable to reducing constructor's probability of dropping from first ladder frame and second ladder frame.
Optionally, the support frame all is equipped with positioning mechanism along length direction's both ends, and positioning mechanism includes first cylinder, locating plate and a plurality of locating lever, first cylinder and support frame fixed connection, the output and the locating plate fixed connection of first cylinder, the locating lever all deviates from the one end fixed connection of first cylinder with the locating plate, and the locating lever lower extreme is equipped with the cone piece, the great one end of cone piece cross-sectional area and locating lever fixed connection.
Through adopting above-mentioned technical scheme, the output of first cylinder stretches out and drives the locating plate and move down, and the locating plate passes through the locating lever and drives the cone piece and move down, makes the cone piece insert ground, and the output of first cylinder continues to stretch out and makes the lower tip of locating lever sink into ground, is favorable to realizing the effect of fixing a position the support frame.
In summary, the utility model comprises at least one of the following beneficial technical effects:
1. the positioning mechanism locks the position of the support frame, the output end of the first hydraulic cylinder stretches out to push the first ladder frame to rotate, the angle of the first ladder frame is adjusted, the sliding mechanism drives the second ladder frame to move along the length direction of the first ladder frame, the second ladder frame is adjusted to a preset position, the first limiting mechanism and the second limiting mechanism respectively adjust the first ladder plate and the second ladder plate, so that the first ladder plate and the second ladder plate are kept horizontal, and the climbing ladder is built more conveniently;
2. the two first motors drive the first sliding blocks to slide in the first sliding grooves simultaneously through the connected first lead screws, the two first sliding blocks drive the first limiting rods to move in the direction deviating from the first motors, and the first limiting rods push the first ladder plates to rotate, so that the effect of adjusting the first ladder plates is achieved;
3. the output end of the second motor drives the reel to rotate, the reel pulls the rope, the rope is wound on the reel, the guide wheel pulls the rope, the rope pulls the second ladder frame through the pull rod, and the effect of driving the second ladder frame to slide is achieved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a movable precast beam construction safety ladder.
Fig. 2 is a schematic view for highlighting the positions of the first screw and the first slider.
Fig. 3 is a schematic view for highlighting the positions of the first ladder plate and the limiting torsion spring.
Reference numerals illustrate: 1. a support frame; 2. a first ladder frame; 3. a second ladder frame; 4. a first limiting mechanism; 5. a sliding mechanism; 6. a second limiting mechanism; 7. a positioning mechanism; 8. a support mechanism; 11. a first hydraulic cylinder; 12. a universal wheel; 21. a first ladder plate; 22. a first chute; 23. limiting torsion springs; 24. a first guard bar; 31. a second step plate; 32. a second guard bar; 41. a first motor; 42. a first screw rod; 43. a first slider; 44. a first stop lever; 51. a second motor; 52. a reel; 53. a guide wheel; 54. a pull rod; 55. a rope; 71. a first cylinder; 72. a positioning plate; 73. a positioning rod; 74. conical blocks; 81. a first strut; 82. a second strut; 83. a support block; 84. a diagonal rod; 831. and a limit groove.
Detailed Description
The present utility model will be described in further detail below with reference to the accompanying drawings.
The embodiment of the utility model discloses a movable precast beam construction safety cat ladder.
Referring to fig. 1 and 2, a movable precast beam construction safety cat ladder, including support frame 1, a plurality of universal wheels 12 have been set firmly to support frame 1 lower extreme portion, and constructor passes through universal wheels 12 with support frame 1 propelling movement to preset position. The two ends of the support frame 1 along the length direction are provided with positioning mechanisms 7, each positioning mechanism 7 comprises a first air cylinder 71, a positioning plate 72 and a plurality of positioning rods 73, and the first air cylinders 71 are fixedly connected with the support frame 1.
Referring to fig. 1 and 2, the output end of the first cylinder 71 is fixedly connected with the positioning plate 72, the output end of the first cylinder 71 extends out to drive the positioning plate 72 to move downwards, the positioning rods 73 are fixedly connected with one end of the positioning plate 72, which is far away from the first cylinder 71, the lower end of each positioning rod 73 is provided with a conical block 74, the positioning plate 72 drives the conical blocks 74 to move downwards through the positioning rods 73, one end with a larger cross section area of each conical block 74 is fixedly connected with the positioning rod 73, the output end of the first cylinder 71 continues to extend out to enable the conical blocks 74 to be inserted into the ground, and the lower end of each positioning rod 73 gradually sinks into the ground, so that the effect of positioning the support frame 1 is achieved.
Referring to fig. 1 and 2, a first ladder frame 2 is rotatably connected to a support frame 1, a first hydraulic cylinder 11 is rotatably connected to the support frame 1, an output end of the first hydraulic cylinder 11 is rotatably connected to the first ladder frame 2, and the output end of the first hydraulic cylinder 11 extends to push the first ladder frame 2 to rotate in a direction away from the support frame 1, so that the first ladder frame 2 is adjusted to a preset position. The first ladder frame 2 is connected with a second ladder frame 3 in a sliding way, and the support frame 1 is provided with a sliding mechanism 5.
Referring to fig. 1 and 2, the sliding mechanism 5 is provided with two groups along the width direction of the supporting frame 1, the sliding mechanism 5 includes a second motor 51, a reel 52, a guiding wheel 53, a pull rod 54 and a rope 55, the second motor 51 is fixedly connected with the supporting frame 1, an output shaft of the second motor 51 is fixedly connected with the reel 52, an output shaft of the second motor 51 drives the reel 52 to rotate, one end of the rope 55 is fixedly connected with the reel 52, and the reel 52 pulls the rope 55 to enable the rope 55 to be wound on the reel 52.
Referring to fig. 1 and 2, the guide wheel 53 is rotatably connected to an end of the first ladder frame 2 facing away from the second motor 51, the pull rod 54 is fixedly connected to an end of the second ladder frame 3 adjacent to the second motor 51, an end of the rope 55 facing away from the reel 52 is fixedly connected to the pull rod 54, and the rope 55 abuts against the guide wheel 53. The guide wheel 53 pulls the rope 55, so that the rope 55 pulls the second ladder frame 3 through the pull rod 54, drives the second ladder frame 3 to slide, and adjusts the second ladder frame 3 to a preset position.
Referring to fig. 1 and 2, a support frame 1 is provided with two sets of supporting mechanisms 8 for supporting a second ladder frame 3, each supporting mechanism 8 comprises a first supporting rod 81, a second supporting rod 82 and a supporting block 83, one end of the first supporting rod 81 is connected with the support frame 1 through a bolt, the second supporting rod 82 is connected with one end, deviating from the support frame 1, of the first supporting rod 81 through a bolt, the supporting blocks 83 are fixedly connected with the second supporting rod 82, a limiting groove 831 is formed in one end, deviating from the second supporting rod 82, of the supporting blocks 83, and the second ladder frame 3 is in contact with the second supporting rod 82 through the limiting groove 831. The first supporting rod 81, the second supporting rod 82 and the supporting block 83 are matched to support the second ladder frame 3, so that the stability of the second ladder frame 3 is improved.
Referring to fig. 1 and 2, the first supporting rod 81 is fixedly provided with two diagonal rods 84, the two diagonal rods 84 are oppositely arranged, one ends of the two diagonal rods 84, which deviate from the first supporting rod 81, are connected with the supporting frame 1 through bolts, and the two diagonal rods 84 are matched to support the first supporting rod 81, so that the stability of the first supporting rod 81 is improved.
Referring to fig. 2 and 3, a plurality of first ladder plates 21 are rotatably connected to the first ladder frame 2 in the length direction, and the first ladder frame 2 is provided with a first stopper mechanism 4. The first limiting mechanism 4 comprises two first motors 41, two first screw rods 42, two first sliding blocks 43 and a plurality of first limiting rods 44, the two ends of the first ladder frame 2 along the width direction are provided with first sliding grooves 22, the two first sliding blocks 43 are in sliding connection with the first ladder frame 2 through the corresponding first sliding grooves 22, and the two first sliding blocks 43 are in abutting contact with the first ladder frame 2.
Referring to fig. 2 and 3, two first motors 41 are fixedly connected to the first ladder frame 2, and output shafts of the two first motors 41 are fixedly connected to corresponding first screw rods 42, respectively. The output shafts of the two first motors 41 drive the two first lead screws 42 to rotate simultaneously, the two first lead screws 42 are both rotationally connected with the first ladder frame 2 and are in threaded connection with the corresponding first sliding blocks 43, and the two first lead screws 42 drive the two first sliding blocks 43 to slide in the first sliding grooves 22 simultaneously.
Referring to fig. 2 and 3, two ends of the first limiting rod 44 along the length direction are fixedly connected with corresponding first sliding blocks 43 respectively, the first limiting rod 44 is in contact with corresponding first ladder plates 21, the two first sliding blocks 43 drive the first limiting rod 44 to move in a direction deviating from the first motor 41, the first limiting rod 44 pushes the first ladder plates 21 to rotate, the first ladder plates 21 are adjusted to be in a horizontal state, and an effect of adjusting the first ladder plates 21 is achieved.
Referring to fig. 2 and 3, two rotation shafts of the first ladder plate 21 are respectively sleeved with a limiting torsion spring 23, two connection ends of the limiting torsion spring 23 are fixedly connected with the first ladder plate 21 and the first ladder frame 2 respectively, the limiting torsion spring 23 limits the first ladder plate 21, and the effect that the first ladder plate 21 is in contact with the first limiting rod 44 can be achieved.
Referring to fig. 2 and 3, the second ladder frame 3 is rotatably connected with a second ladder plate 31 along the length direction, the second ladder frame 3 is provided with a second limiting mechanism 6 for limiting the second ladder plate 31, the second limiting mechanism 6 has the same structure as the first limiting mechanism 4, and the second limiting mechanism 6 adjusts the second ladder plate 31, so that the second ladder plate 31 is in a horizontal state, and the effect of building the crawling ladder is convenient to achieve.
Referring to fig. 1 and 2, the first ladder frame 2 is fixedly provided with a plurality of first guard bars 24 along the length direction, the second ladder frame 3 is fixedly provided with a plurality of second guard bars 32 along the length direction, and the first guard bars 24 and the second guard bars 32 are beneficial to reducing the falling probability of constructors from the first ladder frame 2 and the second ladder frame 3. The radius of the second guard bar 32 is larger than the radius of the first guard bar 24, so that the probability of interference between the first guard bar 24 and the second guard bar 32 can be reduced.
The implementation principle of the movable precast beam construction safety cat ladder provided by the embodiment of the utility model is as follows: the output end of the first hydraulic cylinder 11 stretches out to push the first ladder frame 2 to rotate in the direction away from the supporting frame 1, and the first ladder frame 2 is adjusted to a preset position. The output shaft of the second motor 51 drives the reel 52 to rotate, and the reel 52 pulls the rope 55 to wind the rope 55 onto the reel 52. The guide wheel 53 pulls the rope 55, so that the rope 55 pulls the second ladder frame 3 through the pull rod 54, drives the second ladder frame 3 to slide, and adjusts the second ladder frame 3 to a preset position. The output shafts of the two first motors 41 drive the two first lead screws 42 to rotate simultaneously, and the two first lead screws 42 drive the two first sliding blocks 43 to slide in the first sliding grooves 22 simultaneously. The two first sliding blocks 43 drive the first limiting rod 44 to move in the direction deviating from the first motor 41, the first limiting rod 44 pushes the first ladder plate 21 to rotate, the first ladder plate 21 is adjusted to be in a horizontal state, and the effect of adjusting the first ladder plate 21 is achieved. The second limiting mechanism 6 adjusts the second ladder plate 31, so that the second ladder plate 31 is in a horizontal state, and the effect of building the crawling ladder is convenient to achieve.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. The utility model provides a movable precast beam construction safety cat ladder, includes support frame (1), its characterized in that: the support frame (1) is rotationally connected with a first ladder frame (2), the support frame (1) is rotationally connected with a first hydraulic cylinder (11), and the output end of the first hydraulic cylinder (11) is rotationally connected with the first ladder frame (2); the first ladder frame (2) is rotationally connected with a plurality of first ladder plates (21) along the length direction, and the first ladder frame (2) is provided with a first limiting mechanism (4) for limiting the first ladder plates (21); the first ladder frame (2) is connected with a second ladder frame (3) in a sliding way, and the support frame (1) is provided with a sliding mechanism (5) for driving the second ladder frame (3) to slide; the second ladder frame (3) is rotationally connected with a second ladder plate (31) along the length direction, the second ladder frame (3) is provided with a second limiting mechanism (6) for limiting the second ladder plate (31), and a plurality of universal wheels (12) are fixedly arranged at the lower end part of the supporting frame (1).
2. The movable precast beam construction safety cat ladder according to claim 1, wherein: the first limiting mechanism (4) comprises two first motors (41), two first screw rods (42), two first sliding blocks (43) and a plurality of first limiting rods (44), wherein first sliding grooves (22) are formed in two ends of the first ladder frame (2) along the width direction, the two first sliding blocks (43) are in sliding connection with the first ladder frame (2) through the corresponding first sliding grooves (22), and the two first sliding blocks (43) are in contact with the first ladder frame (2); the two ends of the first limiting rod (44) along the length direction are fixedly connected with the corresponding first sliding blocks (43), and the first limiting rod (44) is abutted against the corresponding first ladder plate (21); the two first screw rods (42) are rotationally connected with the first ladder frame (2) and are in threaded connection with corresponding first sliding blocks (43), the two first motors (41) are fixedly connected with the first ladder frame (2), and output shafts of the two first motors (41) are respectively and fixedly connected with the corresponding first screw rods (42).
3. The movable precast beam construction safety cat ladder according to claim 2, characterized in that: two rotation shafts of the first ladder plate (21) are sleeved with limiting torsion springs (23), and two connection ends of the limiting torsion springs (23) are fixedly connected with the first ladder plate (21) and the first ladder frame (2) respectively.
4. The movable precast beam construction safety cat ladder according to claim 1, wherein: the sliding mechanism (5) is provided with two groups along the width direction of the support frame (1), the sliding mechanism (5) comprises a second motor (51), a reel (52), a guide wheel (53), a pull rod (54) and a rope (55), the second motor (51) is fixedly connected with the support frame (1), an output shaft of the second motor (51) is fixedly connected with the reel (52), the guide wheel (53) is rotatably connected with one end of the first ladder frame (2) deviating from the second motor (51), and the pull rod (54) is fixedly connected with one end of the second ladder frame (3) close to the second motor (51); one end of a rope (55) is fixedly connected with the pull rod (54), one end of the rope (55) deviating from the pull rod (54) is fixedly connected with the reel (52), and the rope (55) is abutted against the guide wheel (53).
5. The movable precast beam construction safety cat ladder according to claim 1, wherein: support frame (1) is equipped with two sets of supporting mechanism (8) that support second ladder frame (3), supporting mechanism (8) are including first branch (81), second branch (82) and supporting shoe (83), first branch (81) are connected with support frame (1), the one end that first branch (81) deviate from support frame (1) is connected with second ladder frame (3), supporting shoe (83) and second branch (82) fixed connection, spacing groove (831) have been seted up to one end that supporting shoe (83) deviate from second branch (82), second ladder frame (3) are inconsistent with second branch (82) through spacing groove (831).
6. The movable precast beam construction safety cat ladder according to claim 5, wherein: the first supporting rod (81) is fixedly provided with two inclined rods (84), the two inclined rods (84) are oppositely arranged, and one ends of the two inclined rods (84) deviating from the first supporting rod (81) are connected with the supporting frame (1) through bolts.
7. The movable precast beam construction safety cat ladder according to claim 1, wherein: the first ladder frame (2) is fixedly provided with a plurality of first guard bars (24) along the length direction, the second ladder frame (3) is fixedly provided with a plurality of second guard bars (32) along the length direction, and the radius of the second guard bars (32) is larger than that of the first guard bars (24).
8. The movable precast beam construction safety cat ladder according to claim 1, wherein: the support frame (1) all is equipped with positioning mechanism (7) along length direction's both ends, positioning mechanism (7) are including first cylinder (71), locating plate (72) and a plurality of locating lever (73), first cylinder (71) and support frame (1) fixed connection, the output and the locating plate (72) fixed connection of first cylinder (71), locating lever (73) all deviate from the one end fixed connection of first cylinder (71) with locating plate (72), locating lever (73) lower extreme portion is equipped with cone piece (74), the great one end of cone piece (74) cross-sectional area and locating lever (73) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321197901.5U CN219754446U (en) | 2023-05-16 | 2023-05-16 | Movable precast beam construction safety cat ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321197901.5U CN219754446U (en) | 2023-05-16 | 2023-05-16 | Movable precast beam construction safety cat ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219754446U true CN219754446U (en) | 2023-09-26 |
Family
ID=88090004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321197901.5U Active CN219754446U (en) | 2023-05-16 | 2023-05-16 | Movable precast beam construction safety cat ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219754446U (en) |
-
2023
- 2023-05-16 CN CN202321197901.5U patent/CN219754446U/en active Active
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