Novel safety crawling ladder

Abstract

The utility model provides a novel safety crawling ladder which comprises a crawling ladder body capable of being fixedly arranged at the side end of a building, two rail parts arranged at the front end of the crawling ladder body, a plurality of clamping blocks arranged in the two rail parts and a protective cage part arranged in the two rail parts in a sliding mode. The gathering adjusting part is arranged on the protective cage part; a ladder climbing person can be placed in the protective cage part close to the ladder climbing main body, the protective cage part and an operator are fastened through the adjustment work of the collection adjustment part, so that the ladder climbing person drives the protective cage part to synchronously ascend in the process of climbing the ladder climbing main body, and the ladder climbing person can be prevented from leaning backwards to be separated while the construction height of the protective cage part is reduced; in addition, the device is provided with the moving part for limiting the clamping rod part to swing reversely, the clamping rod part cannot swing reversely under the limiting effect of the clamping rod part when descending to extrude each clamping block, and the situation that the ladder climbing personnel vertically fall down in the operation process is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of building equipment, in particular to a novel safety ladder. Background Art

[0002] When installing, testing and maintaining equipment, construction workers need to climb using ladders on the structure. To increase safety, many ladders are equipped with an integrated ladder cage on the outside to avoid the risk of climbers falling off the ladder when leaning back. However, the ladder cannot provide protection when the climber falls vertically due to slipping, and the ladder cage is fixed. When the ladder is too high and too long, the production cost of the ladder cage is relatively high, and the protection effect is limited. Utility Model Content

[0003] The utility model aims to provide a novel safety ladder to solve the above problems.

[0004] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a new type of safety ladder, comprising: a ladder body that can be fixedly arranged at the side end of a building, two track parts arranged at the front end of the ladder body, a plurality of blocks arranged in the two track parts, a protective cage part slidably arranged in the two track parts, and a convergence adjustment part arranged in the protective cage part;

[0005] Adjust the tightening adjustment part, so that the tightening adjustment part can clamp the ladder climber in the protective cage part;

[0006] The protective cage portion includes a slide bar slidably arranged in the track portion, a through slot arranged on the slide bar, a clamping rod portion hingedly arranged in the through slot, a slide slot arranged on the slide bar, a moving portion slidably arranged in the slide slot, and a handrail arranged on the slide bar;

[0007] The moving part can press down against the clamping rod part, and the clamping rod part can be located between the gaps formed by every two clamping blocks, wherein:

[0008] When the handrail is pushed up and the ladder is climbed, the slide bar can drive the clamping rod portion to rise along the track portion, so that the clamping rod portion swings and then resets when contacting each clamping block.

[0009] Optionally, the protective cage portion further comprises two upright posts arranged on the handrail, and two arc-shaped rods arranged on the two upright posts;

[0010] The two arc-shaped rods can prevent ladder climbers from falling backwards.

[0011] Optionally, the convergence adjustment portion includes a threaded hole provided on the handrail, a hand-tightening bolt screwed into the threaded hole, and an arc-shaped frame rotatably provided at one end of the hand-tightening bolt, wherein:

[0012] When the hand-tightening bolt is screwed, the arc frame can move.

[0013] Optionally, the convergence adjustment portion further includes two connecting rods arranged on the arc frame, and two limiting holes arranged on one of the arc rods and capable of being penetrated by the two connecting rods, wherein:

[0014] When the arc frame moves, the two arc rods can move radially along the two limiting holes, so that a ladder climber is clamped between the arc frame and one of the arc rods.

[0015] Optionally, the clamping rod portion includes a movable rod hingedly arranged in the through slot, and a bending spring arranged between the movable rod and the sliding rod;

[0016] When the movable rod rotates, the bending spring can be compressed.

[0017] Optionally, the moving part includes a resistance rod slidably arranged on the sliding groove, and a straight spring arranged on the resistance rod and an end wall of the sliding groove.

[0018] Optionally, the moving part further comprises a square rod hingedly arranged on the handrail, and a traction rope connected between the square rod and the abutment rod;

[0019] The slide bar is provided with a through hole for accommodating the insertion of the traction rope, wherein:

[0020] By rotating the square rod, the traction rope can pull the interference rod away from the movable rod, so that the interference rod compresses the straight spring.

[0021] Compared with the prior art, the embodiments of the utility model have the following beneficial effects: the ladder climber can be placed in the protective cage portion near the ladder body, and the protective cage portion and the operator can be fastened by adjusting the convergence adjustment portion, so that the ladder climber can drive the protective cage portion to rise synchronously in the process of climbing the ladder body, which can reduce the construction height of the protective cage portion while preventing the ladder climber from leaning back and falling off; and in the process of rising of the protective cage portion, it can drive the clamping rod portion to squeeze each clamping block and then swing unidirectionally to reset, so as to meet the hovering protection of the ladder climber at any rising height of the protective cage portion, and the device is provided with a moving portion for limiting the reverse swing of the clamping rod portion. When the clamping rod portion descends and squeezes each clamping block, it cannot swing reversely due to the limiting effect of the clamping rod portion, thereby effectively preventing the ladder climber from falling vertically during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 Shows a stereogram of the utility model;

[0024] Figure 2 A partial schematic diagram of the best embodiment of the utility model is shown;

[0025] Figure 3 The utility model is shown Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 A partial side view schematic diagram of the utility model is shown.

[0027] In the picture

[0028] 1. Ladder body; 2. Track part; 3. Block; 4. Protective cage part; 41. Slide rod; 42. Through slot; 43. Clamp rod part; 431. Movable rod; 432. Bending spring; 44. Slide slot; 45. Moving part; 451. Resistance rod; 452. Straight spring; 453. Square rod; 454. Traction rope; 46. Handrail; 47. Column; 48. Arc rod; 5. Convergence adjustment part; 51. Threaded hole; 52. Hand-tightening bolt; 53. Arc frame; 54. Connecting rod; 55. Limiting hole; 6. Through hole. DETAILED DESCRIPTION

[0029] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0030] like Figure 1-4 As shown, a novel safety ladder comprises: a ladder body 1 that can be fixedly arranged at the side end of a building, two track parts 2 arranged at the front end of the ladder body 1, a plurality of blocks 3 arranged in the two track parts 2, a protection cage part 4 slidably arranged in the two track parts 2, and a convergence adjustment part 5 arranged in the protection cage part 4;

[0031] Adjust the tightening adjustment part 5, so that the tightening adjustment part 5 can clamp the ladder climber in the protective cage part 4;

[0032] The protective cage portion 4 includes a slide bar 41 slidably arranged in the track portion 2, the slide bar 41 is divided into a vertical bar and a horizontal bar, the track portion 2 is divided into a vertical slot and a horizontal slot, the two sides of the vertical bar are fitted with the two sides of the vertical slot, the front end of the vertical bar is spaced apart from one side of the vertical slot, and the three surfaces of the horizontal bar are fitted with the three surfaces of the horizontal slot, so as to ensure the stability of the slide bar 41 during sliding, a through slot 42 is arranged on the slide bar 41, the through slot 42 is close to the vertical slot, a clamping rod portion 43 is hingedly arranged in the through slot 42, a slide slot 44 is arranged on the top surface of the slide bar 41, a moving portion 45 slidably arranged in the slide slot 44, and a support rod 46 is arranged on the slide bar 41;

[0033] The moving portion 45 can push down against the clamping rod portion 43, and the clamping rod portion 43 can be located between the gaps formed by every two clamping blocks 3, wherein:

[0034] When the handrail 46 is pushed up and the ladder is climbed, the slide bar 41 can drive the clamping rod portion 43 to rise along the track portion 2, so that the clamping rod portion 43 swings and resets when it contacts each of the clamping blocks 3. Specifically, the ladder climber can be placed in the protective cage portion 4 near the ladder body 1, and the protective cage portion 4 is fastened to the operator through the adjustment work of the convergence adjustment portion 5, so that the ladder climber can drive the protective cage portion 4 to rise synchronously during the process of climbing the ladder body 1, and it is not easy to separate from the protective cage portion 4, so that the ladder climber can reduce the construction height of the protective cage portion 4 while preventing the ladder climber from falling backwards. and during the rising process of the protective cage portion 4, it can drive the clamping rod portion 43 to squeeze each clamping block 3 and then swing unidirectionally to reset. At this time, the swinging direction of the clamping rod portion 43 is clockwise to meet the hovering protection of the ladder climber with the protective cage portion 4 at any rising height, and the device is provided with a moving portion 45 for limiting the reverse swinging of the clamping rod portion 43. When the clamping rod portion 43 descends and squeezes each clamping block 3, it is restricted by the clamping rod portion 43 and cannot swing in the reverse direction. The counterclockwise swinging direction of the clamping rod portion 43 is blocked, which effectively avoids the vertical fall of the ladder climber during operation, and the ladder is more novel and safer.

[0035] Optionally, the protective cage portion 4 further includes two upright posts 47 disposed on the support rod 46, and two arc-shaped rods 48 disposed on the two upright posts 47;

[0036] The two arc-shaped rods 48 can protect the ladder climber from leaning backward. Specifically, the two upright posts 47 connect the two arc-shaped rods 48 and the handrail 46 into a whole. The ladder climber can complete the overall movement of the protective cage 4 by pushing and pulling the handrail 46. There is a gap between the two arc-shaped rods 48, and the two arc-shaped rods 48 are respectively close to the waist and neck of the ladder climber to prevent the ladder climber from rolling and falling when leaning backward.

[0037] Optionally, the convergence adjustment portion 5 includes a threaded hole 51 provided on the support rod 46, a hand-tightening bolt 52 screwed into the threaded hole 51, and an arc frame 53 rotatably provided at one end of the hand-tightening bolt 52, wherein:

[0038] When the hand-tightening bolt 52 is spirally rotated, the arc frame 53 can move;

[0039] Optionally, the convergence adjustment portion 5 further includes two connecting rods 54 arranged on the arc frame 53, and two limiting holes 55 arranged on one of the arc rods 48 and capable of being penetrated by the two connecting rods 54, wherein:

[0040] When the arc frame 53 moves, the two arc rods 48 can move radially along the two limiting holes 55 so that the ladder climber is clamped between the arc frame 53 and one of the arc rods 48. Specifically, when the ladder climber is pre-climbing the ladder, he can insert into the clamping spacing formed by the arc rod 48 and the arc frame 53, and the arc frame 53 gradually approaches the arc rod 48 to clamp the ladder climber through the spiral rotation of the hand-tightened bolt 52 in the threaded hole 51. The two connecting rods 54 move radially in the two limiting holes 55 to make the moving trajectory of the arc frame 53 a displacement state without deviation angle, thereby facilitating its operation process.

[0041] Optionally, the clamping rod portion 43 includes a movable rod 431 hingedly disposed in the through slot 42, and a bending spring 432 disposed between the movable rod 431 and the sliding rod 41;

[0042] When the movable rod 431 rotates, the bending spring 432 can be compressed. Specifically, when the slide rod 41 drives the through slot 42 to slide up, the contact block 3 on the movable rod 431 rotates clockwise in the through slot 42 to compress the bending spring 432. The bending spring 432 stores energy at this time. When the movable rod 431 passes over the block 3, the bending spring 432 releases the stored energy to allow the movable rod 431 to reset to its initial angle. This process is repeated so that the movement of the slide rod 41 rising along with the ladder is not hindered.

[0043] Optionally, the movable portion 45 includes a resistance rod 451 slidably arranged on the slide groove 44, and a straight spring 452 arranged on the resistance rod 451 and an end wall of the slide groove 44. Specifically, the slide rod 41 rises and drives the movable rod 431 to contact the block 3 and rotate clockwise, and the slide rod 41 descends and drives the movable rod 431 to contact the block 3 and rotate counterclockwise. However, when the resistance rod 451 is at the end of the slide groove 44 opposite to the straight spring 452, it presses down on the movable rod 431. The position setting of the resistance rod 451 prevents the movable rod 431 from rotating counterclockwise, so that the ladder climber cannot fall vertically when moving with the protective cage part 4, thereby increasing the safety protection effect.

[0044] Optionally, the moving part 45 further includes a square rod 453 hingedly arranged on the support rod 46, and a traction rope 454 connected between the square rod 453 and the abutment rod 451;

[0045] The slide bar 41 is provided with a through hole 6 for accommodating the insertion of the traction rope 454, wherein:

[0046] By rotating the square rod 453, the traction rope 454 can pull the resistance rod 451 away from the movable rod 431, so that the resistance rod 451 compresses the straight spring 452. Specifically, when the ladder climber needs to climb down, the square rod 453 can be rotated to make the square rod 453 pull the traction rope 454 to act on the resistance rod 451. The resistance rod 451 is forced to move away from the movable rod 431 in the slide groove 44. At this time, the counterclockwise rotation restriction of the movable rod 431 is cancelled, and the ladder climber can climb down smoothly. The resistance rod 451 compresses the straight spring 452 during the movement process. When the rotation force of the square rod 453 is cancelled, the straight spring 452 can also drive the resistance rod 451 to reset. This operation can be repeated to meet the safety requirements of flexible up and down climbing.

[0047] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A new type of safety ladder, characterized in that: include: A ladder body (1) fixedly arranged at the side end of a building, two track parts (2) arranged at the front end of the ladder body (1), a plurality of clamping blocks (3) arranged in the two track parts (2), a protective cage part (4) slidably arranged in the two track parts (2), and a convergence adjustment part (5) arranged in the protective cage part (4); The constriction adjustment portion (5) is adjusted so that the constriction adjustment portion (5) can clamp the ladder climber in the protective cage portion (4); The protective cage portion (4) comprises a slide bar (41) slidably arranged in the track portion (2), a through groove (42) arranged on the slide bar (41), a clamping rod portion (43) hingedly arranged in the through groove (42), a slide groove (44) arranged on the slide bar (41), a moving portion (45) slidably arranged in the slide groove (44), and a support rod (46) arranged on the slide bar (41); The moving portion (45) can press down against the clamping rod portion (43), and the clamping rod portion (43) can be located between the gaps formed by every two clamping blocks (3), wherein: When the handrail (46) is pushed up and the ladder is climbed, the slide bar (41) can drive the clamping rod portion (43) to rise along the track portion (2), so that the clamping rod portion (43) swings and then returns to its original position when contacting each clamping block (3).

2. A new safety ladder as claimed in claim 1, characterized in that: The protective cage portion (4) further comprises two upright posts (47) arranged on the support rod (46), and two arc-shaped rods (48) arranged on the two upright posts (47); The two arc-shaped rods (48) can prevent ladder climbers from falling backwards.

3. A new safety ladder as claimed in claim 2, characterized in that: The convergence adjustment part (5) comprises a threaded hole (51) arranged on the support rod (46), a hand-tightening bolt (52) screwed into the threaded hole (51), and an arc frame (53) rotatably arranged at one end of the hand-tightening bolt (52), wherein: When the hand-tightening bolt (52) is screwed, the arc frame (53) can move.

4. A new safety ladder as claimed in claim 3, characterized in that: The convergence adjustment portion (5) further comprises two connecting rods (54) arranged on the arc frame (53), and two limiting holes (55) arranged on one of the arc rods (48) and capable of being penetrated by the two connecting rods (54), wherein: When the arc frame (53) moves, the two arc rods (48) can move radially along the two limiting holes (55) so that a ladder climber is clamped between the arc frame (53) and one of the arc rods (48).

5. A new safety ladder as claimed in claim 4, characterized in that: The clamping rod portion (43) comprises a movable rod (431) hingedly arranged in the through slot (42), and a bending spring (432) arranged between the movable rod (431) and the sliding rod (41); When the movable rod (431) rotates, the bending spring (432) can be compressed.

6. A new safety ladder as claimed in claim 5, characterized in that: The moving part (45) comprises a resisting rod (451) slidably arranged on the sliding groove (44), and a straight spring (452) arranged on the resisting rod (451) and an end wall of the sliding groove (44).

7. A new safety ladder as claimed in claim 6, characterized in that: The moving part (45) further comprises a square rod (453) hingedly arranged on the support rod (46), and a traction rope (454) connected between the square rod (453) and the abutment rod (451); The slide bar (41) is provided with a through hole (6) for accommodating the insertion of the traction rope (454), wherein: By rotating the square rod (453), the traction rope (454) can pull the interference rod (451) away from the movable rod (431), so that the interference rod (451) compresses the straight spring (452).

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