CN220353790U - Safety telescopic ladder - Google Patents
Safety telescopic ladder Download PDFInfo
- Publication number
- CN220353790U CN220353790U CN202321732040.6U CN202321732040U CN220353790U CN 220353790 U CN220353790 U CN 220353790U CN 202321732040 U CN202321732040 U CN 202321732040U CN 220353790 U CN220353790 U CN 220353790U
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- CN
- China
- Prior art keywords
- ladder
- rope
- safety
- main
- main ladder
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Links
- 238000004804 winding Methods 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 2
- 241000282326 Felis catus Species 0.000 abstract 1
- 210000000078 claw Anatomy 0.000 description 7
- 230000005484 gravity Effects 0.000 description 3
- 230000009194 climbing Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Ladders (AREA)
Abstract
The utility model discloses a safe telescopic ladder, which belongs to the field of telescopic ladders and is used for adjusting the height of a cat ladder and solving the problem of safe falling prevention.
Description
Technical Field
The utility model belongs to the field of extension ladders, and particularly relates to a safe anti-falling extension ladder.
Background
The telescopic ladder is formed by stacking two single ladders, and the length of the single ladders is prolonged by telescopic movement of one single ladder relative to the other single ladder, so that the purpose of adjusting the climbing height is achieved. The telescopic ladder is applied to high-altitude operation places such as warehouses and the like, and needs to lean against supports such as wall surfaces and the like, so that the telescopic ladder is suitable for occasions with higher ladder heights. The existing telescopic ladder lacks a safety protection device, and once accidents such as slipping, stepping on the sky and the like occur in the process of climbing the ladder, falling risks can be caused.
Disclosure of Invention
The utility model aims to provide a safe telescopic ladder, which achieves the aim of safe falling prevention.
According to one aspect of the utility model, the safety telescopic ladder comprises a main ladder and an auxiliary ladder, wherein the auxiliary ladder is arranged along the length direction of the main ladder, the auxiliary ladder can move and limit relative to the main ladder, and the main ladder is provided with an anti-falling rope.
The anti-falling rope comprises a hanging ring, a lock catch and a safety rope, wherein the hanging ring is arranged on the step of the main ladder, the hanging ring is connected with the lock catch, and the lock catch is connected with the safety rope.
The lifting ring is provided with an opening, two sides of the opening are provided with lug plates, the lug plates are connected through pin shafts, and the pin shafts are connected with lock catches.
The lock catch comprises a chain ring and a rope buckle, wherein the chain ring is sleeved on the pin shaft and connected with the rope buckle, and the rope buckle is connected with the safety rope.
The rope buckle comprises a U-shaped plate, a rope winding column is arranged on the inner wall of one side plate of the U-shaped plate, rope gaps are formed between the other side plate of the U-shaped plate and the rope winding column, and the safety rope is sleeved on the rope winding column through a rope ring.
The ladder further comprises a rear supporting frame, the rear supporting frame comprises two supporting rods, one end of each supporting rod is provided with a hanging plate, the two hanging plates are crossed and connected in a rotating mode, and each hanging plate is hung on the auxiliary ladder step through a hook.
The side support frame is installed on two sides of the main ladder, the side support frame comprises a first support rod and a second support rod, one end of the first support rod is rotationally connected to a first ladder column position of the main ladder, one end of the second support rod is slidingly connected to the middle of the first support rod, and the other end of the second support rod is rotationally connected to a second ladder column position of the main ladder.
The side support frame also comprises a third supporting rod and a fourth supporting rod, one end of the third supporting rod is rotationally connected to the first ladder column position of the main ladder, one end of the fourth supporting rod is slidably connected to the middle of the third supporting rod, and the other end of the fourth supporting rod is rotationally connected to the second ladder column position of the main ladder.
The utility model has the beneficial effects that: the anti-falling rope is arranged on the main ladder, the anti-falling rope is arranged on the safety belt of the operator, when the operator climbs the ladder, the anti-falling rope is used for lifesaving once accidental falling occurs, and meanwhile, the main ladder is tensioned on the ground by the aid of the self gravity of the operator through the anti-falling rope, so that the main ladder is prevented from falling down to generate danger when the operator falls.
Drawings
FIG. 1 is a perspective view of the safety extension ladder of the present utility model;
FIG. 2 is an enlarged view of the safety extension ladder of FIG. 1 at A;
FIG. 3 is an enlarged view of the safety ladder of FIG. 1 at B;
fig. 4 is an enlarged view of the safety extension ladder of fig. 1 at C.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 3, the safety telescopic ladder comprises a main ladder 1 and an auxiliary ladder 2, wherein the auxiliary ladder 2 is arranged along the length direction of the main ladder 1, a groove is formed in the inner side of a main ladder column 3, a groove is formed in the outer side of an auxiliary ladder column 4, a main ladder groove 5 and an auxiliary ladder groove 6 are oppositely arranged, one side of the main ladder groove 5 is hooked on one side of the auxiliary ladder groove 6, a limiting plate 7 is welded and fixed on the outer bottom surface of the main ladder groove 5, a protruding portion of the limiting plate 7 is bent into a sliding groove 8, the other side of the auxiliary ladder groove 6 is arranged on the sliding groove 8, one side of the auxiliary ladder groove 6 slides along the sliding groove 8, the other side of the auxiliary ladder groove 6 slides along one side of the main ladder groove 5, and then the auxiliary ladder 2 slides relative to the main ladder 1, so that the aim of sliding and adjusting the height of the auxiliary ladder is achieved to prolong the height of the main ladder.
In order to realize the limit of the auxiliary ladder and the main ladder, an upper limit claw 9 and a lower limit claw 10 are hinged from high to low on the inner side of the auxiliary ladder column 4, and the upper limit claw 9 and the lower limit claw 10 are symmetrically arranged on the inner side of the auxiliary ladder column 4, wherein the two lower limit claws 10 are connected through a connecting rod. When the adjustment height of the auxiliary ladder is reached, the upper limit claw 9 rotates around the corresponding main ladder step 12 and auxiliary ladder step 13 under the self gravity of the auxiliary ladder until the auxiliary ladder is clamped under the self gravity of the auxiliary ladder so as to limit the auxiliary ladder to the main ladder. Meanwhile, in order to ensure that the auxiliary ladder and the main ladder are firmly limited, the lower limiting claw 10 is also clamped with the corresponding main ladder step 12 and auxiliary ladder step 13.
As shown in fig. 1 and 2, since the main ladder reaches a considerable height after the auxiliary ladder is extended, it is necessary to secure the entire load bearing capacity, and the safety extension ladder is mounted to the auxiliary ladder using the rear support frame to increase the support strength. The rear supporting frame 14 comprises two supporting rods 15, one end of each supporting rod 15 is provided with a hanging plate 16, the two hanging plates 16 are crossed and connected in a rotating mode, and each hanging plate 16 is hung on the corresponding auxiliary ladder step 13 through a hanging hook 17. The opening and closing movement of the two struts 15 enables the two hanging plates 16 to generate hinging shearing force, so that the two hanging plates can be firmly hung on the auxiliary ladder steps, and meanwhile, the two struts can move back and forth to achieve an optimal ground supporting angle, so that the rear supporting frame, the main ladder and the auxiliary ladder form stable herringbone ladder arrangement.
As shown in fig. 1 and 4, it is further necessary to ensure the stability of the bottom of the main ladder, and the safety extension ladder adopts side supporting frames to increase the supporting strength of two sides of the main ladder. The side support frame 18 is installed in the both sides of main ladder 1, and the side support frame 18 includes first branch 19, second branch 20, third branch 21 and fourth branch 22, and the one end of first branch 19 articulates in the first column position 23 of main ladder 1, and the one end sliding connection of second branch 20 is in the middle part of first branch 19, and the other end of second branch 20 articulates in the second column position 24 of main ladder 1, and first branch 19 and second branch 20 form triangle-shaped bearing structure. One end of the third supporting rod 21 is hinged to a first ladder column position 23 of the main ladder 1, one end of the fourth supporting rod 22 is connected to the middle of the third supporting rod 21 in a sliding mode, and the other end of the fourth supporting rod 22 is hinged to a second ladder column position 24 of the main ladder 1. The third strut 21 and the fourth strut 22 form a triangular support structure.
As shown in fig. 1 and 3, the anti-falling rope 25 comprises a hanging ring 26, a lock catch and a safety rope 30, the hanging ring 26 is arranged on the main ladder step 12, an opening is arranged on the hanging ring, lug plates 27 are arranged on two sides of the opening, and the lug plates 27 are connected through a pin shaft. The lock catch comprises a chain ring 28 and a rope buckle, the chain ring 28 is sleeved on the pin shaft, and the bottom of the U-shaped plate 29 is welded and fixed with the chain ring 28. The rope fastener comprises a U-shaped plate 29, a rope winding column is arranged on the inner wall of one side plate of the U-shaped plate 29, a rope gap is formed between the other side plate of the U-shaped plate 29 and the rope winding column, and a safety rope 30 is sleeved on the rope winding column through a rope ring 31.
The safety rope is preferably a steel wire rope, the free end of the safety rope is locked with an operator safety belt through a safety lock catch, when an operator climbs a ladder, once accidental falling occurs, the safety rope can safely suspend the operator in mid-air to wait for rescue, and meanwhile, the operator self-gravity safety rope is utilized to tighten the main ladder on the ground, so that the main ladder is prevented from falling down to generate secondary danger when the operator falls.
What has been described above is but some of the embodiments of the utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.
Claims (8)
1. The utility model provides a safe extension ladder, its characterized in that, includes main ladder (1) and vice ladder (2), vice ladder (2) are installed along the length direction of main ladder (1), vice ladder (2) can move and spacing relative main ladder (1), main ladder (1) are equipped with the anti-falling rope.
2. The safety extension ladder according to claim 1, characterized in that the anti-falling rope comprises a hanging ring (26), a lock catch and a safety rope (30), the main ladder (1) comprises a main ladder step (12), the hanging ring (26) is installed on the main ladder step (12), the hanging ring (26) is connected with the lock catch, and the lock catch is connected with the safety rope (30).
3. The safety extension ladder according to claim 2, characterized in that the suspension ring (26) is provided with an opening, two sides of the opening are provided with ear plates (27), the ear plates (27) are connected by a pin shaft, and the pin shaft is connected with a lock catch.
4. A safety ladder according to claim 3, characterized in that the lock catch comprises a chain link (28) and a rope knot, the chain link (28) being journaled in a pin and connected to the rope knot, the rope knot being connected to the safety rope (30).
5. The safety extension ladder according to claim 4, wherein the rope buckle comprises a U-shaped plate (29), a rope winding column is arranged on the inner wall of one side plate of the U-shaped plate (29), a rope gap is formed between the other side plate of the U-shaped plate (29) and the rope winding column, and the safety rope (30) is sleeved on the rope winding column through a rope ring (31).
6. The safety telescopic ladder according to claim 1, further comprising a rear supporting frame (14), wherein the rear supporting frame (14) comprises two supporting rods (15), one end of each supporting rod (15) is provided with a hanging plate (16), the two hanging plates (16) are crossed and rotationally connected, and each hanging plate (16) is hung on the auxiliary ladder step (13) through a hook (17).
7. The safety telescopic ladder according to claim 1, further comprising a side support frame (18), wherein the side support frame (18) is mounted on two sides of the main ladder (1), the side support frame (18) comprises a first support rod (19) and a second support rod (20), one end of the first support rod (19) is rotatably connected to a first ladder column position (23) of the main ladder (1), one end of the second support rod (20) is slidably connected to the middle part of the first support rod (19), and the other end of the second support rod (20) is rotatably connected to a second ladder column position (24) of the main ladder (1).
8. The safety telescopic ladder according to claim 7, characterized in that the side support frame (18) further comprises a third strut (21) and a fourth strut (22), one end of the third strut (21) is rotatably connected to the first column (23) of the main ladder (1), one end of the fourth strut (22) is slidably connected to the middle part of the third strut (21), and the other end of the fourth strut (22) is rotatably connected to the second column (24) of the main ladder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321732040.6U CN220353790U (en) | 2023-07-03 | 2023-07-03 | Safety telescopic ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321732040.6U CN220353790U (en) | 2023-07-03 | 2023-07-03 | Safety telescopic ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220353790U true CN220353790U (en) | 2024-01-16 |
Family
ID=89504384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321732040.6U Active CN220353790U (en) | 2023-07-03 | 2023-07-03 | Safety telescopic ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220353790U (en) |
-
2023
- 2023-07-03 CN CN202321732040.6U patent/CN220353790U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |