Foldable escape ladder

Abstract

The utility model provides a foldable escape ladder, and belongs to the technical field of fire-fighting escape equipment. The problems that an existing escape ladder is complex in opening operation, low in efficiency and not easy to store are solved. The foldable escape ladder comprises a plurality of escape ladder splicing units which can be spliced in sequence, each escape ladder splicing unit comprises a fixing rod, a connecting rod and a plurality of pedal cross beams, the fixing rods are used for being fixed to a wall, the connecting rods are located on one sides of the fixing rods, and the pedal cross beams are located on the other sides of the fixing rods. The two ends of the pedal cross beams are hinged to the fixing rods and the connecting rods respectively and arranged at intervals in the length direction of the fixing rods, and the escape ladder splicing unit located at the top is further provided with a locking mechanism which enables the escape ladder splicing unit to be kept in a folded locking state and can be unlocked. The escape device is convenient and fast to operate, can save a large amount of escape time, and is smaller in size and more attractive after being stored.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fire escape equipment technical field relates to a kind of foldable escape ladders. BACKGROUND

[0002] With the continuous development of economy, high-rise residential building and office building and other high-rise buildings are also more and more in the city, and the safety of high-rise buildings is also more and more valued by the public.

[0003] Because the power supply will be affected when high-rise buildings have fire and other accidents, in order to avoid the situation of being trapped in the elevator, indoor personnel can only escape through the stairway and other safe passages, and when the safe passage is blocked, the escapee can only approach the outer wall and escape through the escape ladder set on the outer wall. For example, a kind of escape ladder disclosed in Chinese patent application (application number: 202323571311.7) includes a plurality of groups of interlocking climbing ladder assemblies, each group of climbing ladder assemblies includes a fixed climbing ladder mechanism and an adjustable climbing ladder mechanism, the fixed climbing ladder mechanism is provided with a recovery mechanism for controlling the upward movement of the adjustable climbing ladder mechanism, the adjustable climbing ladder mechanism is provided with a limiting mechanism cooperating with the fixed climbing ladder mechanism, and the fixed climbing ladder mechanism is further provided with an anti-falling assembly. Although the escape ladder can be stored when not in use, the entire escape ladder is still completely exposed on the outer wall when stored, which is not aesthetic and does not match the outer wall of high-end buildings. Moreover, each group of climbing ladder assemblies needs to be opened separately when in use, which is low in opening efficiency and thus wastes valuable escape time. SUMMARY

[0004] The utility model aims at the above-mentioned problems existing in the prior art and provides a foldable escape ladder. The technical problem to be solved by the utility model is how to make the escape ladder easier to store and higher in opening efficiency.

[0005] The utility model can be realized by the following technical scheme: a foldable escape ladder, characterized by comprising a plurality of escape ladder connecting units that can be connected in sequence, each escape ladder connecting unit comprising a fixed rod, a connecting rod and a plurality of pedal crossbeams, the fixed rod being used to be fixed to a wall, the connecting rod being located on one side of the fixed rod, the two ends of the pedal crossbeam being hingedly connected to the fixed rod and the connecting rod and being spaced apart along the length direction of the fixed rod, and a locking mechanism being further provided on the escape ladder connecting unit at the top to keep the escape ladder connecting units in a folded and locked state and to be unlocked.

[0006] The utility model discloses a modular design can be selected according to the height of building and storey height and be formed by the splicing of multiple escape ladders splicing units.

[0007] In the foldable escape ladder, the fixed device is arranged between the adjacent connecting rods to connect and separate the adjacent connecting rods.

[0008] In the foldable escape ladder, the fixed device comprises a buckle, and the buckle is fixed to the end of one of the connecting rods.

[0009] In the detachable escape ladder, the escape ladder splicing unit further comprises a guardrail assembly, the guardrail assembly comprises two vertical rods and a plurality of horizontal rods, the vertical rods are arranged in the same direction as the fixed rods, and the horizontal rods are respectively hinged between the two vertical rods, between the fixed rods and the adjacent vertical rods and between the connecting rods and the adjacent vertical rods.

[0010] In the foldable escape ladder, the locking mechanism is a fixed bolt, and the fixed bolt can be arranged on the connecting rod and the adjacent vertical rod at the same time.

[0011] In the foldable escape ladder, the upper surface of the pedal cross beam is provided with a plurality of anti-skid convex patterns arranged along the length direction.

[0012] In the foldable escape ladder, the fixed rod, the connecting rod and the vertical rod each comprise a first support part and a second support part in the shape of a long strip, the first support part and the second support part are connected in the shape of L, the second support part is provided with a third support part, the third support part and the first support part have a gap and form a mounting groove one, the third support part is provided with a fourth support part, the fourth support part and the second support part have a gap and form a mounting groove two.

[0013] In the foldable escape ladder, the fixed rod, the connecting rod, the vertical rod, the pedal cross beam and the cross rod are made of aluminum alloy material.

[0014] In the foldable escape ladder, one end of the cross rod has a positioning protrusion, and the other end of the cross rod has a recessed groove for embedding the positioning protrusion of the adjacent cross rod.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model discloses a fixed rod is fixed on the outer wall and adopts a foldable structure, when not using in ordinary times, is folded and is stored as a long rod, small and more beautiful space is occupied, and the outside does not have a force point after storage, avoids the criminal to climb, and the safety is higher, when needing using, opening is convenient and quick, can save a lot of precious escape time.

[0017] 2. The utility model discloses a splicing structure, can be spliced into different height according to the actual situation of high -rise building, and simple and convenient installation, and the connecting rod between each escape ladder splicing unit is connected through separable fixing device, so that the trapped personnel of each floor can open the escape ladder splicing unit of this floor and below directly, also can directly open the locking device of the top and make all escape ladder splicing units open completely, more flexible, convenient, fast and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram when the utility model is stored;

[0019] Figure 2 It is the structure schematic diagram when the utility model is partially opened;

[0020] Figure 3 It is the structure schematic diagram when the utility model is completely opened;

[0021] Figure 4 It is Figure 1 The partial close -up of A part in it;

[0022] Figure 5 It is Figure 1 The partial close -up of B part in it;

[0023] Figure 6 It is the structure schematic diagram when the connecting rod is connected with the adjacent connecting rod;

[0024] Figure 7 It is the structure schematic diagram of pedal cross beam;

[0025] Figure 8 It is the structure schematic diagram of fixed rod;

[0026] Figure 9Is the folding storage horizontal rod adjacent horizontal rod cooperation structure schematic view.

[0027] In the figure, 1, escape ladder splicing unit; 21, fixed rod; 22, connecting rod; 22a, clamping groove; 23, pedal cross beam; 231, anti-skid convex grain; 24, mounting plate; 31, vertical rod; 32, horizontal rod; 32a, let place slot; 321, positioning protruding block; 4, fixed bolt; 5, buckle; 61, fixed bolt; 62, fixed hole; 71, first support part; 72, second support part; 73, third support part; 74, fourth support part; 7a, installation groove one; 7b, installation groove two. DETAILED DESCRIPTION

[0028] The following is a specific embodiment of the utility model and combining with the drawings, the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0029] A kind of foldable escape ladder, can be installed in the window or balcony of housing outer wall, such as Figure 1 、 Figure 3 And Figure 4 As shown, including several escape ladder splicing units 1, escape ladder splicing unit 1 can select appropriate quantity according to the height of building, then it is sequentially connected along length direction, each escape ladder splicing unit 1 includes climbing assembly and guardrail assembly, climbing assembly and guardrail assembly are designed with foldable storage structure, so that it is folded and stored in long rod shape when not being used, when needing to use, just open it.

[0030] Specifically, as Figures 1 to 4As shown, the climbing assembly includes a fixed rod 21, a connecting rod 22 and a plurality of pedal cross beams 23, a plurality of mounting plates 24 are welded on the fixed rod 21, which can be fixed on the outer wall of different substrates by different types of mounting screws, the connecting rod 22 is arranged in the same direction as the fixed rod 21 and is located on one side of the fixed rod 21, the pedal cross beam 23 is located between the connecting rod 22 and the fixed rod 21 and is arranged in the length direction of the fixed rod 21, and the both ends of the pedal cross beam 23 are hingedly connected with the fixed rod 21 and the connecting rod 22; the guardrail assembly includes two vertical rods 31 and a plurality of horizontal rods 32, wherein the vertical rod 31 is arranged in the same direction as the fixed rod 21 and the horizontal rod 32, and the fixed rod 21, the connecting rod 22 and the two vertical rods 31 are arranged in a square shape, the horizontal rod 32 is located between the two vertical rods 31, the fixed rod 21 and the adjacent vertical rod 31 and the connecting rod 22 and the adjacent vertical rod 31, and the both ends of the horizontal rod 32 are hingedly connected with the adjacent vertical rod 31, the fixed rod 21 or the connecting rod 22, so that the climbing assembly and the guardrail assembly are linked and can be synchronously stored or unfolded. When the utility model is stored, the fixed rod 21, the connecting rod 22, the pedal cross beam 23, the vertical rod 31 and the horizontal rod 32 are close to each other and are in the shape of a long column; when the utility model is unfolded, a square cylindrical escape passage is formed between the pedal cross beam 23 and the horizontal rod 32, so that the trapped personnel can escape from the escape passage through the pedal cross beam 23.

[0031] As shown in Figure 5 The escape ladder splicing unit 1 located at the top is also provided with a locking mechanism, which can keep the escape ladder bottleneck unit in a locked state or unlock it. In the embodiment, the locking mechanism is a fixed bolt 614, which is hung on the top of the fixed rod 21 by a soft rope, and the connecting rod 22 and the adjacent vertical rod 31 are provided with a fixed hole 62 in the transverse direction. When the utility model is stored and folded, the fixed hole 62 on the connecting rod 22 and the fixed hole 62 on the adjacent vertical rod 31 are located on the same axis, and the utility model can be kept in the storage state by only inserting the fixed bolt 614 into the two fixed holes 62.

[0032] As shown in Figure 2 And Figure 6 The connecting rod 22 of the adjacent escape ladder splicing unit 1 is provided with a fixing device, which is used for connecting and separating the adjacent connecting rod 22. In the embodiment, the fixing device is a buckle 5, one end of the buckle 5 is fixedly connected with one of the connecting rods 22, and the other connecting rod 22 is provided with a clamping groove 22a matched with the buckle 5, so that the two connecting rods 22 are clamped and fixed and kept synchronous, and the two connecting rods 22 can be separated by only pressing the buckle 5.

[0033] In the embodiment, the fixed rod 21, the connecting rod 22, the vertical rod 31, the pedal cross beam 23 and the horizontal rod 32 are all made of aluminum alloy material, which is light and waterproof and corrosion-resistant.

[0034] As shown in Figure 8As shown, in the embodiment, the structures of the fixed rod 21, the connecting rod 22 and the vertical rod 31 are basically the same, all including a first support part 71 and a second support part 72 in a long strip plate shape, the first support part 71 and the second support part 72 being connected in an L shape, the second support part 72 further having a third support part 73, the third support part 73 and the first support part 71 having a gap and forming a mounting groove one 7a, the third support part 73 having a fourth support part 74, the fourth support part 74 and the second support part 72 having a gap and forming a mounting groove two 7b, so as to increase the structural strength, and the pedal cross beam 23 and the cross rod 32 can be hinged in the mounting groove one 7a and the mounting groove two 7b, when the utility model is folded and stored, the pedal cross beam 23 and the cross rod 32 can be stored in the mounting groove one 7a and the mounting groove two 7b, so that the whole is in a square long rod shape, more beautiful and more space-saving.

[0035] Further, as shown in the drawings, Figure 7 In the embodiment, the pedal cross beam 23 is in a long rod shape, the upper surface of the pedal cross beam 23 is a plane and the upper surface is provided with a plurality of anti-skid convex patterns 231 along the length direction, so as to avoid slipping when the escape personnel climbs. The two end surfaces of the pedal cross beam 23 are planes perpendicular to the upper surface of the pedal cross beam 23, and the lower corner of the end hinged with the connecting rod 22 and the upper corner of the end hinged with the fixed rod 21 are both arc-shaped, so as to facilitate the storage and unfolding of the pedal cross beam 23, and when the pedal cross beam 23 is unfolded in place, the two end surfaces of the pedal cross beam 23 can abut against the side walls of the fixed rod 21 and the connecting rod 22, so as to keep the horizontal state perpendicular to the fixed rod 21, facilitating the climbing.

[0036] Further, as shown in the drawings, Figure 9 The structures of the two ends of the cross rod 32 are similar to those of the two ends of the pedal cross beam 23, and are also arc-shaped on the side of the rotation direction of the cross rod 32, facilitating the swinging of the cross rod 32 within the unfolding and folding range, and the end surface of the cross rod 32 can abut against the inner wall of the adjacent mounting groove one 7a or mounting groove two 7b when unfolded in place, and the difference lies in that the end surface of one end of the cross rod 32 is provided with a giving slot 32a, and the end surface of the other end of the cross rod 32 is provided with a positioning protrusion 321, the size of the positioning protrusion 321 being matched with the giving slot 32a, so that the positioning protrusion 321 can be embedded in the giving slot 32a of the adjacent cross rod 32 when the utility model is folded and stored, so that the structure is more compact and the stability is better.

[0037] The utility model discloses when installing, the adjacent escape ladder splicing unit 1 is vertically arranged in turn on the outer wall, and the adjacent fixed rod 21 can be fixedly connected into a whole, to improve the reliability of the whole, and the adjacent connecting rod 22 is connected through buckle 5, and the adjacent vertical rod 31 forms upper and lower abutment, and can be opened. When folding and storing, only need to push the fixed rod 21 of bottom and the vertical rod 31 of diagonal position to it to the inside simultaneously to the upward, make pedal crossbeam 23, crossbar 32 and another vertical rod 31 all form linkage and draw together to the inside, and finally fit together, then can be locked through fixed bolt 614. When needing to open completely, only need to open the fixed bolt 614 of top, and all escape ladder splicing unit 1 can be opened automatically under the action of gravity, when only need to open the escape ladder splicing unit 1 of specific floor and below, only need to press the buckle 5 of corresponding floor to make the connecting rod 22 of this floor and the connecting rod 22 above it separate, make the escape ladder splicing unit 1 of this floor and below it open automatically under the action of gravity.

[0038] The specific embodiments described herein merely exemplify the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the specific embodiments described or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the range defined by the attached claims.

[0039] Although the terms such as escape ladder splicing unit 1, fixed rod 21, connecting rod 22, pedal crossbeam 23, fixed bolt 614, buckle 5 are used more in this paper, but the possibility of using other terms is not excluded. Using these terms is only to describe and explain the essence of the utility model more conveniently, and it is contrary to the spirit of the utility model to explain them as any kind of additional limitation.

Claims

1. A collapsible escape ladder, characterised in that, The escape ladder assembly comprises a plurality of escape ladder connecting units (1) which can be connected in sequence, each of the escape ladder connecting units (1) comprises a fixing rod (21), a connecting rod (22) and a plurality of pedal cross beams (23), the fixing rod (21) is used for being fixed to a wall, the connecting rod (22) is located on one side of the fixing rod (21), and the two ends of the pedal cross beam (23) are hingedly connected with the fixing rod (21) and the connecting rod (22) and are arranged at intervals along the length direction of the fixing rod (21), and a locking mechanism is further arranged on the escape ladder connecting unit (1) at the top and is used for keeping the escape ladder connecting unit (1) in a folded and locked state and being capable of being unlocked.

2. The foldable escape ladder of claim 1, wherein, Fixing devices are arranged between the adjacent connecting rods (22) and are used for connecting and separating the adjacent connecting rods (22).

3. The collapsible escape ladder of claim 2, wherein, The fixing device comprises a buckle (5) which is fixed to the end of one of the connecting rods (22), and the end of the other connecting rod (22) is provided with a clamping groove (22a) which is used for clamping the buckle (5).

4. The collapsible escape ladder according to claim 1 or 2 or 3, characterized in that, The escape ladder connecting unit (1) further comprises a guardrail assembly which comprises two vertical rods (31) and a plurality of horizontal rods (32), the vertical rods (31) are arranged in the same direction as the fixing rod (21), and the horizontal rods (32) are hingedly connected between the two vertical rods (31), the fixing rod (21) and the adjacent vertical rod (31) and the connecting rod (22) and the adjacent vertical rod (31) respectively.

5. The collapsible escape ladder of claim 4, wherein, The locking mechanism is a fixed bolt (61) (4) which can be arranged on the connecting rod (22) and the adjacent vertical rod (31) at the same time.

6. The collapsible escape ladder of claim 4, wherein, The upper surface of the pedal cross beam (23) is provided with a plurality of anti-skid convex patterns (231) which are arranged along the length direction.

7. The collapsible escape ladder of claim 4, wherein, The fixing rod (21), the connecting rod (22) and the vertical rod (31) each comprise a first supporting part (71) and a second supporting part (72) which are connected in an L shape, the second supporting part (72) is provided with a third supporting part (73) which has a gap with the first supporting part (71) and forms a mounting groove (7a), and the third supporting part (73) is provided with a fourth supporting part (74) which has a gap with the second supporting part (72) and forms a mounting groove (7b).

8. The collapsible escape ladder of claim 4, wherein, The fixing rod (21), the connecting rod (22), the vertical rod (31), the pedal cross beam (23) and the horizontal rod (32) are all made of aluminum alloy material.

9. The collapsible escape ladder of claim 4, wherein, One end of the horizontal rod (32) is provided with a positioning protrusion (321), and the other end of the horizontal rod (32) is provided with a gap slot (32a) for embedding the positioning protrusion (321) of the adjacent horizontal rod (32).

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