Folding device of outdoor escape ladder

Abstract

The utility model discloses a folding device of an outdoor escape ladder, and relates to the technical field of escape facilities, the folding device comprises a folding frame and an escape ladder rotatably connected to the inner surface of the folding frame, the inner surface of the folding frame is fixedly connected with a fixed seat, the inner surface of the fixed seat is rotatably connected with a take-up roller, and the take-up roller is fixedly connected with the folding frame. A transverse rod is fixedly connected to the inner surface of the lower side of the escape ladder, the transverse rod is fixedly connected to the outer circle face of a take-up roller through a rope, and a locking mechanism is arranged outside the take-up roller. Compared with an existing folding device of a common outdoor escape ladder, when the folding device of the outdoor escape ladder is used, the locking handle is rotated to be separated from the tooth space position of the first gear, the escape ladder can rapidly descend along with gravity, the escape requirement is met, and when the folding device is folded, the hand wheel rod and the sliding base can slide towards the take-up roller by rotating, so that the folding device of the outdoor escape ladder is convenient to use. The folding mechanism can drive the take-up roller to rotate, the escape ladder is automatically wound, the design does not need hand cranking, and the escape ladder can rapidly and freely fall in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of escape facilities, in particular to a folding device for an outdoor escape ladder. Background Art

[0002] An escape ladder, also known as a fire escape ladder, is a building facility that serves as an escape route in case of fire. The fire laws of many countries have regulations on its installation and include it in the inspection items of building fire licenses. At present, for the folding of foldable outdoor escape ladders, corresponding folding devices are required to fold them so that they can be quickly unfolded and used when escaping.

[0003] For example, the application number is 202122690639.5, which is a folding device for a foldable outdoor escape ladder. This utility model solves the problems of low folding efficiency, high labor intensity of operators, high folding cost, cumbersome folding operation and certain danger in the folding process of the existing foldable outdoor escape ladder. However, after analyzing the above-mentioned comparative patents, it was found that the device is also manually folded, and with reference to the folding methods of most escape ladders, it was found that these folding devices mainly use hand-cranking for folding, and the folding process is more physically demanding, and the folding operation is more troublesome for the elderly or vulnerable groups.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a folding device for an outdoor escape ladder is proposed. Utility Model Content

[0005] The utility model aims to provide a folding device for an outdoor escape ladder to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a folding device for an outdoor escape ladder, comprising a folding frame and an escape ladder rotatably connected to the inner surface of the folding frame, the inner surface of the folding frame is fixedly connected to a fixing seat, the inner surface of the fixing seat is rotatably connected to a take-up roller, the lower inner surface of the escape ladder is fixedly connected to a cross bar, and the cross bar is fixedly connected to the outer cylindrical surface of the take-up roller by a rope, a locking mechanism is arranged on the outside of the take-up roller, and a folding mechanism is arranged on the inner surface and front surface of the fixing seat.

[0007] Preferably, the locking mechanism comprises a first gear fixedly connected to the right end of the take-up roller, a fixing rod is fixedly connected to the right outer surface of the fixing seat, and a locking handle is rotatably connected to the inner surface of the fixing rod.

[0008] Preferably, the folding mechanism comprises a winding motor arranged on the inner surface of the fixed seat, the output end of the winding motor is fixedly connected to the second gear, and the left end of the take-up roller is fixedly connected to the third gear.

[0009] Preferably, the lower surface of the winding motor is fixedly connected to a slide seat, and the slide seat is slidably connected to the inner surface of the fixed seat, the front surface of the slide seat extends to the front surface of the fixed seat and is rotatably connected to a handwheel rod, and the handwheel rod is threadedly connected to the inside of the fixed seat.

[0010] Preferably, the inner surfaces of both sides of the folding frame are fixedly connected with slide rails, and the inner surfaces of the slide rails are slidably connected with sliders.

[0011] Preferably, the front surface of the sliding block is rotatably connected to an auxiliary pull rod, and the auxiliary pull rod is rotatably connected to the outer circumferential surface of the stepping rod of the escape ladder.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a folding frame, an escape ladder, a fixed seat, a take-up roller, a cross bar, a locking mechanism, a first gear, a fixed rod, a locking handle, a folding mechanism, a winding motor, a slide seat, a hand wheel rod, a second gear, and a third gear. When the escape ladder is not in use, the locking handle on the fixed rod is clamped between the teeth of the first gear for locking, and the second gear and the third gear are not meshing. The locking handle is rotated to disengage the position between the teeth of the first gear, and the escape ladder can be rapidly lowered with gravity to meet the escape demand. When folding, the hand wheel rod is rotated, and the slide seat can slide close to the take-up roller, driving the winding motor and the second gear to mesh with the third gear. Turning on the winding motor can drive the take-up roller to rotate, and the rope fixed on the cross bar is wound up, so as to achieve the purpose of automatic folding, and there is no need to wind up by hand cranking, and rapid free fall can be achieved when in use.

[0014] 2. The utility model provides a slide rail, a slider and an auxiliary pull rod. When the escape ladder is descending, the escape ladder pulls the auxiliary pull rod to allow the slider to slide inside the slide rail. When the escape ladder has finished descending, the slider slides to the leftmost side of the slide rail. The auxiliary pull rod can prevent the escape ladder from swinging too much when people are using the escape ladder to escape, thereby affecting the safety of escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a top view of the three-dimensional structure of the fixing seat 3 of the utility model;

[0017] Figure 3 For this utility model Figure 2 An enlarged structural diagram of the middle locking mechanism 6;

[0018] Figure 4 For this utility model Figure 1 A schematic diagram of a partial cross-section three-dimensional structure;

[0019] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of A.

[0020] In the figure: 1. folding frame; 2. escape ladder; 3. fixed seat; 4. take-up roller; 5. cross bar; 6. locking mechanism; 61. first gear; 62. fixed rod; 63. locking handle; 7. folding mechanism; 71. take-up motor; 711. slide seat; 712. handwheel rod; 72. second gear; 73. third gear; 8. slide rail; 9. slider; 10. auxiliary pull rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 4As shown, a folding device for an outdoor escape ladder comprises a folding frame 1 and an escape ladder 2 rotatably connected to the inner surface of the folding frame 1, the inner surface of the folding frame 1 is fixedly connected to a fixing seat 3, the inner surface of the fixing seat 3 is rotatably connected to a take-up roller 4, a cross bar 5 is fixedly connected to the lower inner surface of the escape ladder 2, and the cross bar 5 is fixedly connected to the outer circumferential surface of the take-up roller 4 through a rope, a locking mechanism 6 is arranged on the outside of the take-up roller 4, and a folding mechanism 7 is arranged on the inner surface and the front surface of the fixing seat 3, the locking mechanism 6 comprises a first gear 61 fixedly connected to the right end of the take-up roller 4, a fixing rod 62 is fixedly connected to the right outer surface of the fixing seat 3, and a locking handle 63 is rotatably connected to the inner surface of the fixing rod 62, and the folding mechanism 7 comprises a winding motor 71 arranged on the inner surface of the fixing seat 3, a second gear 72 is fixedly connected to the output end of the winding motor 71, a third gear 73 is fixedly connected to the left end of the take-up roller 4, and a sliding seat is fixedly connected to the lower surface of the winding motor 71 When the cam 711 is in the locked state, the locking cam 73 is in the locked state, and the locking cam 73 is in the locked state, so that the cam 711 can be locked easily and easily.

[0023] like Figure 1-Figure 5 As shown, the inner surfaces of both sides of the folding frame 1 are fixedly connected with slide rails 8, and the inner surface of the slide rails 8 is slidably connected with sliders 9. When the sliders 9 slide to the leftmost side of the slide rails 8, the angle between the auxiliary pull rod 10 and the slide rails 8 is an obtuse angle.

[0024] Furthermore, the front surface of the slider 9 is rotatably connected to an auxiliary pull rod 10, and the auxiliary pull rod 10 is rotatably connected to the outer cylindrical surface of the stepping rod of the escape ladder 2, and the lower end of the auxiliary pull rod 10 is fixedly connected to a ring, which is sleeved on the outer cylindrical surface of the stepping rod of the escape ladder 2.

[0025] Working principle: When using the folding device of the outdoor escape ladder, first, when the escape ladder 2 is not in use, the locking handle 63 on the fixed rod 62 is stuck between the teeth of the first gear 61 for locking, and the second gear 72 and the third gear 73 are not in meshing relationship. The locking handle 63 is turned to disengage it from the position between the teeth of the first gear 61, and the escape ladder 2 can be quickly lowered with gravity to meet the escape needs. When folding, the hand wheel rod 712 is turned, and the slide seat 711 can slide close to the take-up roller 4, driving the winding motor 71 and The second gear 72 meshes with the third gear 73, and turning on the winding motor 71 can drive the winding roller 4 to rotate to wind up the rope fixed on the cross bar 5. During the descent of the escape ladder 2, the escape ladder 2 pulls the auxiliary pull rod 10 to allow the slider 9 to slide inside the slide rail 8. When the escape ladder 2 completes its descent, the slider 9 slides to the leftmost side of the slide rail 8. The auxiliary pull rod 10 can prevent the escape ladder 2 from swinging too much when people are using the escape ladder 2 to escape. This is the working principle of the folding device of the outdoor escape ladder.

Claims

1. A folding device for an outdoor escape ladder, comprising a folding frame (1) and an escape ladder (2) rotatably connected to the inner surface of the folding frame (1), characterized in that: The inner surface of the folding frame (1) is fixedly connected to a fixing seat (3), the inner surface of the fixing seat (3) is rotatably connected to a wire-receiving roller (4), the lower inner surface of the escape ladder (2) is fixedly connected to a crossbar (5), and the crossbar (5) is fixedly connected to the outer circumferential surface of the wire-receiving roller (4) through a rope, a locking mechanism (6) is arranged outside the wire-receiving roller (4), and a folding mechanism (7) is arranged on the inner surface and front surface of the fixing seat (3).

2. The folding device for an outdoor escape ladder according to claim 1, characterized in that: The locking mechanism (6) comprises a first gear (61) fixedly connected to the right end of the take-up roller (4); a fixing rod (62) is fixedly connected to the right outer surface of the fixing seat (3); and a locking handle (63) is rotatably connected to the inner surface of the fixing rod (62).

3. The folding device for an outdoor escape ladder according to claim 1, characterized in that: The folding mechanism (7) comprises a winding motor (71) arranged on the inner surface of the fixing seat (3), the output end of the winding motor (71) is fixedly connected to a second gear (72), and the left end of the wire take-up roller (4) is fixedly connected to a third gear (73).

4. The folding device for an outdoor escape ladder according to claim 3, characterized in that: The lower surface of the winding motor (71) is fixedly connected to a slide seat (711), and the slide seat (711) is slidably connected to the inner surface of the fixed seat (3); the front surface of the slide seat (711) extends to the front surface of the fixed seat (3) and is rotatably connected to a handwheel rod (712), and the handwheel rod (712) is threadedly connected to the inside of the fixed seat (3).

5. The folding device for an outdoor escape ladder according to claim 1, characterized in that: The inner surfaces of both sides of the folding frame (1) are fixedly connected to slide rails (8), and the inner surfaces of the slide rails (8) are slidably connected to sliders (9).

6. The folding device for an outdoor escape ladder according to claim 5, characterized in that: The front surface of the sliding block (9) is rotatably connected to an auxiliary pull rod (10), and the auxiliary pull rod (10) is rotatably connected to the outer circumferential surface of the stepping rod of the escape ladder (2).

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