Escape ladder

Abstract

The utility model relates to the field of escape equipment, in particular to an escape ladder which comprises two hook assemblies, a connecting rod assembly and a ladder assembly, each hook assembly comprises an upper hook and a lower hook, the upper hook is rotationally connected to the lower hook, the rotating axis of the upper hook is perpendicular to the length direction of the upper hook, and the two hook assemblies are symmetrically distributed along the rotating axis of the upper hook; the connecting rod assembly comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are rotationally connected to the two hook assemblies respectively, the second connecting rod is hinged to the first connecting rod, the ladder assembly comprises connecting belts and step parts, the number of the connecting belts is the same as that of the lower hooks, and the connecting belts and the step parts are in one-to-one correspondence; the step parts are connected to the connecting belt and distributed at intervals in the length direction of the connecting belt. The upper hook and the lower hook are rotationally connected, the size of the escape ladder is reduced in the storage state, carrying and storage are facilitated, the structural strength between the two hook assemblies is improved through the connecting assembly, and the safety of the escape ladder is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of escape equipment, in particular to an escape ladder. BACKGROUND

[0002] With the urbanization of the country, various high-rise residential buildings are increasing, if a fire and various disaster accidents occur, the trapped personnel will be unable to escape due to being in high-rise, and some existing escape ladders are generally heavy in quality, complex in structure, and troublesome to use, which often causes the trapped personnel to miss the escape opportunity, and even causes life danger. CONTENT OF THE UTILITY MODEL

[0003] In order to simplify the structure of the escape ladder and facilitate the storage and use of the escape ladder, the present application provides an escape ladder.

[0004] The escape ladder provided by the present application adopts the following technical scheme:

[0005] An escape ladder comprises a hook assembly, a connecting rod assembly and a ladder assembly, the hook assembly comprises an upper hook and a lower hook, one end of the upper hook is rotatably connected to the lower hook, the rotation axis of the upper hook is perpendicular to the length direction of the upper hook, the hook assembly is provided with two, the two hook assemblies are symmetrically distributed along the rotation axis of the upper hook, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the hook assembly, one end of the second connecting rod is rotatably connected to the other hook assembly, the other end of the second connecting rod is hingedly connected to the first connecting rod, the ladder assembly comprises a connecting belt and a ladder step component, the number of the connecting belts is the same as the number of the lower hooks and corresponds one by one, one end of the connecting belt is connected to the lower hook, the ladder step component is connected to the connecting belt, the ladder step component is provided with a plurality of, and the plurality of ladder step components are spaced apart along the length direction of the connecting belt.

[0006] By adopting the above technical scheme, the upper hook and the lower hook are rotatably connected, which helps to reduce the volume of the escape ladder in the storage state, facilitates carrying and storage, and the connecting assembly improves the structural strength between the two hook assemblies and improves the safety of the escape ladder.

[0007] Preferably, the hook assembly further comprises a connecting seat, a second fixing bolt, a second fixing nut and a second protective sleeve, the connecting seat is provided with a rotating groove, the rotating axis of the upper hook is located in the rotating groove, the rotating groove is provided with a first communication hole at both sides of the groove wall along the rotating axis of the upper hook, the first communication hole is in communication with the outside, the axis of the first communication hole coincides with the rotating axis of the upper hook, the upper hook is provided with a second communication hole, the axis of the second communication hole coincides with the rotating axis of the upper hook, the lower hook is provided with a third communication hole, the axis of the third communication hole coincides with the rotating axis of the lower hook, the rod of the second fixing bolt passes through the first communication hole, the second communication hole, the third communication hole and the first communication hole in sequence, the second fixing nut is threadedly connected to the second fixing bolt, and the second protective sleeve is sleeved on the outer periphery of the second fixing nut.

[0008] By adopting the above technical scheme, the rotating axes of the upper hook and the lower hook are located in the rotating groove, the second fixing bolt and the second fixing nut are threadedly connected, the stability of the connection between the upper hook and the lower hook is improved, the second protective sleeve is sleeved on the outer periphery of the second fixing nut, the possibility of damage to the user caused by the rod of the second fixing bolt is reduced, and the safety of the escape ladder is improved.

[0009] Preferably, the hook assembly further comprises a U-shaped ring, a first fixing nut and a first protective sleeve, two ends of the U-shaped ring pass through the lower hook respectively, one end of the connecting belt is wound around the outer periphery of the U-shaped ring, the first fixing nut is provided with two, the two first fixing nuts are threadedly connected to the two ends of the U-shaped ring respectively, the number of the first protective sleeve is the same as that of the first fixing nut and corresponds one-to-one, and the first protective sleeve is sleeved on the outer periphery of the first fixing nut.

[0010] By adopting the above technical scheme, the U-shaped ring is connected to the lower hook, the first fixing nut is threadedly connected to the U-shaped ring, the relative fixation of the U-shaped ring and the lower hook is realized, the first protective sleeve is sleeved on the outer periphery of the first fixing nut, the possibility of damage to the user caused by the end of the U-shaped ring is reduced, the safety of the escape ladder is improved, one end of the connecting belt is wound around the outer periphery of the U-shaped ring, the connection of the ladder assembly and the hook assembly is realized, the first fixing nut is convenient to loosen, the U-shaped ring is convenient to remove, and the connecting belt is convenient to overhaul or replace.

[0011] Preferably, the ladder step component further comprises a pedal and a support column, the pedal is connected to the two connecting belts at both ends along the length direction of the pedal respectively, and the support column is provided with a plurality of support columns which are distributed at intervals along the length direction of the pedal.

[0012] By adopting the above technical scheme, the plurality of support columns abut against the surface of the building, so that there is a gap between the pedal and the surface of the building, the center of the sole of the user is convenient to step on the pedal, the user is convenient to keep the center of gravity stable, and the safety of the escape ladder is improved.

[0013] Preferably, the ladder component further comprises a first fixing bolt, the step is provided with a cavity, the cavity wall is provided with a mounting hole, the mounting hole is connected with the outside, the number of the mounting hole is the same as the number of the support column and one-to-one correspondence, one end of the support column is inserted into the cavity through the mounting hole, the cavity wall away from the mounting hole is provided with a fixing hole, the number of the fixing hole and the first fixing bolt is the same as the number of the mounting hole and one-to-one correspondence, the first fixing bolt is screwed with the support column through the fixing hole.

[0014] By adopting the above technical scheme, the first fixing bolt is screwed with the support column through the fixing hole, the relative fixation of the support column and the step is realized, the first fixing bolt is convenient to loosen, and the support column is taken out for maintenance or replacement.

[0015] Preferably, the connecting belt is provided with a fixing ring, the number of the fixing ring is the same as the number of the step and one-to-one correspondence, the fixing ring is embedded in the cavity, and the fixing ring is sleeved on the outer periphery of the support column.

[0016] By adopting the above technical scheme, the fixing ring is provided and sleeved on the outer periphery of the support column, the relative fixation of the support column and the connecting belt perpendicular to the axis direction of the support column is realized, the relative fixation of the connecting belt and the step is realized, the stability of the connection between the connecting belt and the step is improved, and the safety of the escape ladder is improved.

[0017] Preferably, the ladder component further comprises a first rubber sleeve, the number of the first rubber sleeve is the same as the number of the support column and one-to-one correspondence, and the first rubber sleeve is connected to one end of the support column away from the step.

[0018] By adopting the above technical scheme, the first rubber sleeve is provided, the abrasion of the support column when contacting with the surface of the building is reduced, the service life of the escape ladder is improved, the friction coefficient of the first rubber sleeve is larger, which helps to increase the friction between the support column and the surface of the building, and the safety of the escape ladder is improved.

[0019] Preferably, one end of the first rubber sleeve away from the step is provided with an anti-skid groove.

[0020] By adopting the above technical scheme, the anti-skid groove is provided, the simplest friction between the first rubber sleeve and the surface of the building is increased, and the safety of the escape ladder is improved.

[0021] Preferably, the ladder assembly further comprises a storage belt and a magic tape, the storage belt is connected to any ladder component, and the magic tape is provided with two, and the two magic tapes are connected to the two ends of the storage belt respectively.

[0022] By adopting the above technical scheme, the storage belt is wound around the outer periphery of the ladder component, and the two magic tapes are adhered to each other, the storage of the escape ladder is realized, when used, the two magic tapes are separated from each other, the escape ladder can be quickly unfolded, and the convenience of the escape ladder is improved.

[0023] Preferably, the hook assembly further comprises a second rubber sleeve and a third rubber sleeve, the second rubber sleeve is connected to the upper hook away from the lower hook, and the third rubber sleeve is connected to the lower hook away from the upper hook.

[0024] By adopting the above technical scheme, the second rubber sleeve and the third rubber sleeve are arranged to reduce the wear of the upper hook and the lower hook when they contact the surface of the building, thereby prolonging the service life of the escape ladder. The second rubber sleeve and the third rubber sleeve have a relatively large friction coefficient, which helps to increase the friction between the upper hook and the lower hook and the surface of the building, thereby improving the safety of the escape ladder.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The upper hook and the lower hook are rotationally connected, which helps to reduce the volume of the escape ladder in the storage state, facilitates carrying and storage, improves the structural strength between the two hook assemblies through the connecting assembly, and improves the safety of the escape ladder.

[0027] 2. The plurality of support columns abut the surface of the building, so that there is a gap between the pedal and the surface of the building, facilitating the user's foot center to step on the pedal above, facilitating the user to keep his / her center of gravity stable, and improving the safety of the escape ladder.

[0028] 3. The first fixing bolt is threadedly connected with the support column after penetrating through the fixing hole, the relative fixation of the support column and the pedal is realized, the first fixing bolt is loosened to remove the support column for maintenance or replacement, the fixing ring is arranged, the fixing ring is sleeved on the outer periphery of the support column to realize the relative fixation of the support column and the connecting belt perpendicular to the axial direction of the support column, thereby realizing the relative fixation of the connecting belt and the pedal, improving the stability of the connection between the connecting belt and the pedal, and improving the safety of the escape ladder. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a partial structure diagram of the escape ladder.

[0030] Figure 2 is a partial sectional view of the escape ladder, mainly showing the connecting seat.

[0031] Figure 3 is an enlarged view of A in Figure 1

[0032] Figure 4 is a partial sectional view of the escape ladder, mainly showing the U-shaped ring.

[0033] Figure 5 is an enlarged view of B in Figure 4

[0034] Figure 6 is an enlarged view of C in Figure 4 ​​Enlarged view at C.

[0035] Figure 7 is a partial structure diagram of the escape ladder, mainly showing the storage belt and the magic tape.

[0036] Figure 8 is a structure diagram of the escape ladder in the storage state.

[0037] BRIEF DESCRIPTION OF DRAWINGS

[0038] 1, hook assembly; 11, upper hook; 1101, second communication hole; 12, lower hook; 121, third communication hole; 122, groove; 123, fourth communication hole; 13, connecting seat; 131, rotating groove; 132, first communication hole; 14, second fixing bolt; 15, second fixing nut; 16, second protective sleeve; 17, second rubber sleeve; 18, third rubber sleeve; 19, U-shaped ring; 191, connecting column; 110, first fixing nut; 111, first protective sleeve;

[0039] 2, connecting rod assembly; 21, first connecting rod; 211, limiting groove; 22, second connecting rod; 221, limiting block;

[0040] 3, ladder assembly; 31, connecting belt; 311, fixing ring; 32, ladder step component; 321, stepping plate; 3211, cavity; 3212, mounting hole; 3213, fixing hole; 3214, communication groove; 322, support column; 323, first fixing bolt; 324, first rubber sleeve; 3241, anti-skid groove; 33, storage belt; 331, pulling hole; 34, magic tape. DETAILED DESCRIPTION

[0041] The application will be further described in detail below with reference to the accompanying drawings.

[0042] REFERENCE Figure 1The embodiment of the application discloses an escape ladder which comprises a hook assembly 1. The hook assembly 1 is provided with two hook assemblies 1 which are symmetrically distributed along the horizontal direction. The hook assembly 1 comprises an upper hook 11, a connecting seat 13, a lower hook 12, a second rubber sleeve 17 and a third rubber sleeve 18. One side of the connecting seat 13 along the width direction of the connecting seat 13 is provided with a rotating groove 131 which penetrates through the connecting seat 13 along the two sides of the length direction of the connecting seat 13. One end of the upper hook 11 is rotatably embedded in the rotating groove 131. The rotating axis of the upper hook 11 is perpendicular to the length direction of the upper hook 11. The other end of the upper hook 11 is bent to the side away from the groove bottom of the rotating groove 131. The second rubber sleeve 17 is fixedly connected to the end of the upper hook 11 away from the connecting seat 13. One end of the lower hook 12 is rotatably embedded in the rotating groove 131. The rotating axis of the lower hook 12 coincides with the rotating axis of the upper hook 11. The lower hook 12 is located on the side of the upper hook 11 close to the other hook assembly 1. The other end of the lower hook 12 is bent to the side away from the groove bottom of the rotating groove 131. The third rubber sleeve 18 is fixedly connected to the end of the lower hook 12 away from the connecting seat 13. In the embodiment, the upper hook 11 and the lower hook 12 are hollow pipes.

[0043] With reference to Figure 2 The rotating groove 131 is provided with a first communication hole 132 at the groove wall along the thickness direction of the connecting seat 13. The first communication hole 132 is in communication with the outside. The upper hook 11 is provided with a second communication hole 1101. The lower hook 12 is provided with a third communication hole 121. The axis of the first communication hole 132, the second communication hole 1101 and the third communication hole 121 coincides with the rotating axis of the upper hook 11. The hook assembly 1 further comprises a second fixing bolt 14, a second fixing nut 15 and a second protective sleeve 16. The rod part of the second fixing bolt 14 penetrates through the first communication hole 132, the second communication hole 1101, the third communication hole 121 and the first communication hole 132 in sequence. The head part of the second fixing bolt 14 abuts against the side surface of the connecting seat 13 away from the other hook assembly 1. The second fixing nut 15 is threadedly connected to the rod part of the second fixing bolt 14. The second fixing bolt 14 abuts against the side surface of the connecting seat 13 close to the other hook assembly 1. The second protective sleeve 16 is sleeved on the outer periphery of the second fixing bolt 14.

[0044] With reference to Figure 1 and Figure 3The escape ladder further comprises a connecting rod assembly 2. The connecting rod assembly 2 comprises a first connecting rod 21 and a second connecting rod 22. One end of the first connecting rod 21 is rotatably connected to a side surface of the upper hook 11 away from the second rubber sleeve 17, and the rotation axis of the first connecting rod 21 is parallel to the width direction of the connecting seat 13. One end of the second connecting rod 22 is rotatably connected to a side surface of the other upper hook 11 away from the other second rubber sleeve 17, and the rotation axis of the second connecting rod 22 is parallel to the rotation axis of the first connecting rod 21. The other end of the second connecting rod 22 is hingedly connected to the first connecting rod 21, and the hinge axis of the second connecting rod 22 and the first connecting rod 21 is parallel to the rotation axis of the first connecting rod 21. The end of the second connecting rod 22 away from the upper hook 11 is fixedly connected with a limiting block 221, and the limiting block 221 is located on the side of the second connecting rod 22 away from the connecting seat 13. The side of the first connecting rod 21 away from the connecting seat 13 is provided with a limiting groove 211 for embedding the limiting block 221.

[0045] With reference to Figure 4 and Figure 5 , the hook assembly 1 further comprises a U-shaped ring 19, a first fixing nut 110 and a first protective sleeve 111. The side surface of the lower hook 12 away from the upper hook 11 is provided with a groove 122, and the two ends of the U-shaped ring 19 extend into the inside of the lower hook 12 through the groove 122. The inner wall of the upper hook 11 is provided with a fourth communication hole 123, and the fourth communication hole 123 is provided with two, and the two fourth communication holes 123 are distributed along the length direction of the lower hook 12. The two ends of the U-shaped ring 19 are fixedly connected with connecting columns 191, and the two connecting columns 191 extend out of the lower hook 12 after passing through the fourth communication hole 123. The number of the first fixing nut 110 and the first protective sleeve 111 is the same as the number of the connecting column 191 and one-to-one correspondence, the first fixing nut 110 is threadedly connected with the connecting column 191, and the first fixing nut 110 abuts against the side surface of the lower hook 12 away from the groove 122. The first protective sleeve 111 is sleeved on the outer periphery of the first fixing nut 110.

[0046] With reference to Figure 1 and Figure 4 , the escape ladder further comprises a ladder assembly 3. The ladder assembly 3 comprises a connecting belt 31 and a ladder step component 32. The number of the connecting belt 31 is the same as the number of the U-shaped ring 19 and one-to-one correspondence, and one end of the connecting belt 31 is wound around the outer periphery of the U-shaped ring 19. The ladder step component 32 is provided with a plurality of, and the plurality of ladder step components are distributed along the length direction of the connecting belt 31. In this embodiment, the ladder step component 32 is provided with eleven, and the eleven ladder step components 32 are uniformly distributed along the length direction of the connecting belt 31.

[0047] With reference to Figure 4 and Figure 6, the ladder component 3 further comprises a storage belt 33 and a magic tape 34, the storage belt 33 is fixedly connected to the side surface of the step plate 321 away from the lower hook 12, the magic tape 34 is provided with two, and the two magic tapes 34 are fixedly connected to the two sides of the storage belt 33 along the length direction of the storage belt 33 respectively. In the embodiment, the magic tape 34 close to the support column 322 is located on the side surface of the storage belt 33 away from the step plate 321, and the other end of the storage belt 33 along the length direction of the storage belt 33 is provided with a pulling hole 331.

[0048] Referring to Figure 1 and Figure 7 , the ladder component 3 further comprises a storage belt 33 and a magic tape 34, the storage belt 33 is fixedly connected to the side surface of the step plate 321 away from the lower hook 12, the magic tape 34 is provided with two, and the two magic tapes 34 are fixedly connected to the two sides of the storage belt 33 along the length direction of the storage belt 33 respectively. In the embodiment, the magic tape 34 close to the support column 322 is located on the side surface of the storage belt 33 away from the step plate 321, and the other end of the storage belt 33 along the length direction of the storage belt 33 is provided with a pulling hole 331.

[0049] Referring to Figure 8, the connecting band 31 between the two adjacent steps 321 is folded, the storage band 33 near the supporting column 322 is attached to the side surface of the step 321 near the supporting column 322, the other storage band 33 is attached to the side surface of the step 321 away from the supporting column 322, the storage band 33 near the lower hook 12 is attached to the side surface of the step 321 near the lower hook 12, and the two magic tapes 34 are attached to each other.

[0050] The implementation principle of the escape ladder is as follows: in use, the upper hook 11 is rotated to move away from the lower hook 12, the two upper hooks 11 are driven to move away from each other, the first connecting rod 21 and the second connecting rod 22 are driven to rotate relative to each other, and the limiting block 221 is embedded into the limiting groove 211. The end of the upper hook 11 away from the connecting seat 13 is hung on the inside of the window sill or the balcony railing, and the third rubber sleeve 18 abuts against the surface of the building. After the palm is inserted into the pulling hole 331, the two magic tapes 34 are pulled away from each other, the storage band 33 is loosened, the steps 321 and the storage band 33 are automatically unfolded under the action of gravity, and the supporting column 322 abuts against the surface of the building.

[0051] In storage, the connecting band 31 between the two adjacent steps 321 is folded, the storage band 33 near the supporting column 322 is attached to the side surface of the step 321 near the supporting column 322, the other storage band 33 is attached to the side surface of the step 321 away from the supporting column 322, the storage band 33 near the lower hook 12 is attached to the side surface of the step 321 near the lower hook 12, the two magic tapes 34 are attached to each other, the ladder assembly 3 is stored, the upper hook 11 is rotated towards the lower hook 12, the two upper hooks 11 are moved close to each other, and the first connecting rod 21 and the second connecting rod 22 are rotated.

[0052] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An escape ladder characterised in that: The utility model provides hook assembly (1), connecting rod assembly (2) and ladder assembly (3) including, hook assembly (1) including upper hook (11) and lower hook (12), one end of upper hook (11) is rotatably connected in lower hook (12), the rotation axis of upper hook (11) is perpendicular to the length direction of upper hook (11), hook assembly (1) is equipped with two, two hook assembly (1) is along the rotation axis of upper hook (11) symmetry distribution, connecting rod assembly (2) including first connecting rod (21) and second connecting rod (22), one end of first connecting rod (21) is rotatably connected in hook assembly (1), one end of second connecting rod (22) is rotatably connected in another hook assembly (1), the other end of second connecting rod (22) is hinged with first connecting rod (21), ladder assembly (3) including connecting band (31) and ladder step component (32), the number of connecting band (31) is same with lower hook (12) and one to one correspondence, one end of connecting band (31) is connected in lower hook (12), ladder step component (32) is connected in connecting band (31), ladder step component (32) is equipped with several, several ladder step component (32) is along the length direction interval distribution of connecting band (31).

2. The escape ladder of claim 1, wherein: Hook assembly (1) still includes connecting seat (13), second fixed bolt (14), second fixed nut (15) and second protective sleeve (16), connecting seat (13) is equipped with rotary groove (131), the rotation axis of upper hook (11) is located in rotary groove (131), rotary groove (131) is along the both sides groove wall of upper hook (11) rotation axis and is equipped with first communication hole (132), first communication hole (132) is connected with the outside, the first communication hole (132) axis coincides with the rotation axis of upper hook (11), upper hook (11) is equipped with second communication hole (1101), the second communication hole (1101) axis coincides with the rotation axis of upper hook (11), lower hook (12) is equipped with third communication hole (121), third communication hole (121) coincides with the rotation axis of lower hook (12), the rod portion of second fixed bolt (14) passes first communication hole (132), second communication hole (1101), third communication hole (121) and first communication hole (132) in proper order, second fixed nut (15) is screwed on second fixed bolt (14), second protective sleeve (16) is sleeved in the outer periphery of second fixed nut (15).

3. The escape ladder of claim 1, wherein: The hook assembly (1) further comprises a U-shaped ring (19), a first fixing nut (110) and a first protective sleeve (111); both ends of the U-shaped ring (19) penetrate the lower hook (12) respectively; one end of the connecting belt (31) is wound on the outer periphery of the U-shaped ring (19); the first fixing nut (110) is provided with two; the two first fixing nuts (110) are respectively threaded on both ends of the U-shaped ring (19); the first protective sleeve (111) is the same as the number of the first fixing nut (110) and one-to-one correspondence; the first protective sleeve (111) is sleeved on the outer periphery of the first fixing nut (110).

4. The escape ladder of claim 1, wherein: The ladder component (32) further comprises a pedal (321) and a support column (322); both ends of the pedal (321) along the length direction of the pedal (321) are connected to two connecting belts (31) respectively; the support column (322) is provided with a plurality of; a plurality of support columns (322) are distributed at intervals along the length direction of the pedal (321).

5. The escape ladder of claim 4, wherein: The ladder component (32) further comprises a first fixing bolt (323); the pedal (321) is provided with a cavity (3211); the cavity wall of the cavity (3211) is provided with a mounting hole (3212); the mounting hole (3212) is connected with the outside; the number of the mounting hole (3212) is the same as the number of the support column (322) and one-to-one correspondence; one end of the support column (322) penetrates the mounting hole (3212) and extends into the cavity (3211); the cavity wall of the side of the cavity (3211) away from the mounting hole (3212) is provided with a fixing hole (3213); the number of the fixing hole (3213) and the first fixing bolt (323) is the same as the number of the mounting hole (3212) and one-to-one correspondence; the first fixing bolt (323) penetrates the fixing hole (3213) and is screwed with the support column (322).

6. The escape ladder of claim 5, wherein: The connecting belt (31) is provided with a fixing ring (311); the number of the fixing ring (311) is the same as the number of the pedal (321) and one-to-one correspondence; the fixing ring (311) is embedded in the cavity (3211); the fixing ring (311) is sleeved on the outer periphery of the support column (322).

7. The escape ladder of claim 4, wherein: The ladder component (32) further comprises a first rubber sleeve (324); the number of the first rubber sleeve (324) is the same as the number of the support column (322) and one-to-one correspondence; the first rubber sleeve (324) is connected to one end of the support column (322) away from the pedal (321).

8. The escape ladder of claim 7, wherein: The end of the first rubber sleeve (324) away from the pedal (321) is provided with an anti-skid groove (3241).

9. The escape ladder of claim 1, wherein: The ladder assembly (3) further comprises a storage belt (33) and a magic tape (34); the storage belt (33) is connected to any ladder component (32); the magic tape (34) is provided with two; two magic tapes (34) are connected to both ends of the storage belt (33) respectively.

10. The escape ladder of claim 1, wherein: The hook assembly (1) further comprises a second rubber sleeve (17) and a third rubber sleeve (18); the second rubber sleeve (17) is connected to one end of the upper hook (11) away from the lower hook (12); and the third rubber sleeve (18) is connected to one end of the lower hook (12) away from the upper hook (11).

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