Foldable fire emergency escape ladder

Abstract

The utility model relates to fire emergency equipment technical field, concretely relates to a collapsible fire emergency escape ladder, include: at least two ladder sections, adjacent ladder sections are hinged through folding hinge, and folding hinge includes the hinge leaf fixed in the end of adjacent ladder sections respectively, and two hinge leaves are rotatably connected through the pin shaft, and both sides of ladder section are all provided with handrail subassembly, and folding hinge is equipped with the locking mechanism for limiting the opening angle of ladder section, and the locking mechanism includes the locking plate set on one of ladder sections, and the elastic lock pin set on the other ladder section, and the bottom of ladder section is provided with adjustable support subassembly, and the ladder section design through the hinge connection makes the escape ladder can be folded and stored, and the volume is small after folding, and the space occupied during storage is greatly reduced, and it is convenient to store and use in family, small shopping mall and other places, and the locking mechanism can flexibly adjust the opening angle of ladder section and firmly lock, prevents the accidental folding of ladder section in the process of using, and guarantees the safety during the escape.

Description

Technical Field

[0001] This utility model relates to the field of fire emergency equipment technology, specifically to a foldable fire emergency escape ladder. Background Technology

[0002] Emergency escape ladders are important facilities in buildings for evacuating people in emergencies, especially in sudden events such as fires, when conventional passageways are unusable, escape ladders can provide a safe evacuation route.

[0003] In the event of an emergency such as a fire in a multi-story building, elevators may be unusable and stairwells may be blocked by smoke. In such cases, emergency escape ladders are needed to provide an escape route for people.

[0004] Traditional escape ladders are mostly fixed or non-foldable, which have problems such as large storage space occupation and inconvenience in transportation, making them difficult to popularize in places such as homes and small shopping malls. Therefore, it is of great significance to design a foldable, easy-to-store and structurally stable fire emergency escape ladder. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a foldable fire emergency escape ladder, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a foldable fire emergency escape ladder, comprising: at least two ladder sections, adjacent ladder sections are hinged together by folding hinges, the folding hinges include hinge pieces respectively fixed to the ends of adjacent ladder sections, the two hinge pieces are rotatably connected by a pin, handrail assemblies are provided on both sides of the ladder sections, a locking mechanism is provided at the folding hinge to limit the unfolding angle of the ladder sections, the locking mechanism includes a locking plate provided on one ladder section and an elastic locking pin provided on the other ladder section, and an adjustable support assembly is provided at the bottom of the ladder sections.

[0007] Furthermore, the stair section includes longitudinal bars on both sides and multiple horizontal bars connecting the two longitudinal bars. The horizontal bars are evenly distributed along the length of the longitudinal bars, and the surface of the horizontal bars is provided with anti-slip protrusions.

[0008] Furthermore, the handrail assembly includes a handrail bar arranged parallel to the longitudinal bar, the handrail bar being fixedly connected to the longitudinal bar via a connecting rod, and the handrail bar being fitted with an anti-slip rubber sleeve.

[0009] Furthermore, the elastic locking pin includes sleeves fixed on both sides of the ladder section, with a locking pin slidably connected in the middle of the sleeve, and several locking grooves evenly opened in the middle of the locking plate, with the locking pin matching the locking groove.

[0010] Furthermore, a limiting ring is fixedly connected to the surface of the pin, the limiting ring is slidably connected inside the sleeve, and a pull ring is rotatably connected to the other end of the pin.

[0011] Furthermore, a spring is fitted onto the surface of the locking pin. The spring is located inside the sleeve, with one end of the spring abutting against one end of the sleeve and the other end of the spring abutting against one side of the limiting ring.

[0012] Furthermore, the support assembly includes a threaded rod that is threadedly connected to the bottom end of the ladder section. A fixing nut is threadedly connected to the surface of the threaded rod, and a support foot is rotatably connected to the other end of the threaded rod. An anti-slip pad is fixedly connected to the bottom end of the support foot.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art: 1. The hinged ladder design allows the escape ladder to be folded and stored, resulting in a compact size that significantly reduces the space it occupies during storage, making it convenient for storage and use in homes, small shopping malls, and other similar locations; 2. Through the setting of the support components, the support components adopt the design of threaded rods and adjustable support feet, which can adjust the height and stability of the ladder according to the ground conditions, ensuring stable support in different environments, improving escape safety, and thus adapting to different ground environments, with a wide range of applications; 3. Through the setting of the locking mechanism, the locking mechanism adopts the cooperation of elastic locking pin and locking plate during use, which can flexibly adjust the unfolding angle of the ladder section and lock it firmly, preventing the ladder section from accidentally folding during use and ensuring safety during escape. 4. The anti-slip protrusions on the crossbar surface and the anti-slip rubber sleeves on the handrail effectively increase friction, preventing accidental falls due to slipping hands or feet during escape. The overall structure is simple in design, and the folding and unfolding operations are convenient and quick, making it suitable for rapid deployment and use in emergency situations without the need for complicated tools or professional skills. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A; Figure 3This is a schematic diagram of the ladder segment structure of this utility model; Figure 4 This is a schematic diagram of the elastic locking pin structure of this utility model; Figure 5 This is a schematic diagram of the support component structure of this utility model.

[0016] The labels in the diagram represent: 1. Stair section; 101. Vertical bar; 102. Horizontal bar; 103. Anti-slip protrusion; 2. Handrail assembly; 201. Handrail bar; 202. Connecting rod; 203. Anti-slip rubber sleeve; 3. Locking mechanism; 301. Locking plate; 3011. Locking groove; 302. Elastic locking pin; 3021. Sleeve; 3022. Locking pin; 3023. Limiting ring; 3024. Pull ring; 3025. Spring; 4. Support assembly; 401. Threaded rod; 402. Fixing nut; 403. Support foot; 404. Anti-slip pad. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the embodiments. Example

[0019] Reference Figure 1-5 This is the first embodiment of the present invention, which discloses a foldable fire emergency escape ladder, including: at least two ladder sections 1, adjacent ladder sections 1 are hinged by folding hinges, the folding hinges include hinge pieces respectively fixed to the ends of adjacent ladder sections 1, the two hinge pieces are rotatably connected by pins, handrail assemblies 2 are provided on both sides of ladder sections 1, a locking mechanism 3 is provided at the folding hinge to limit the unfolding angle of ladder sections 1, the locking mechanism 3 includes a locking plate 301 provided on one ladder section 1 and an elastic locking pin 302 provided on the other ladder section 1, and an adjustable support assembly 4 is provided at the bottom of ladder section 1.

[0020] The design of the ladder section 1, which is connected by hinges, allows the escape ladder to be folded and stored. When folded, it has a small volume, which greatly reduces the space occupied during storage and makes it easy to store and use in homes, small shopping malls and other places. Example

[0021] Reference Figure 1-5This is the second embodiment of the present invention, which differs from the first embodiment in that: The stair section 1 includes vertical bars 101 on both sides and multiple horizontal bars 102 connected between the two vertical bars 101. The horizontal bars 102 are evenly distributed along the length of the vertical bars 101. The surface of the horizontal bars 102 is provided with anti-slip protrusions 103. The handrail assembly 2 includes a handrail 201 arranged parallel to the vertical bars 101. The handrail 201 is fixedly connected to the vertical bars 101 through connecting rods 202. The handrail 201 is fitted with an anti-slip rubber sleeve 203.

[0022] By setting the anti-slip protrusions 103 on the surface of the crossbar 102 and the anti-slip rubber sleeves 203 on the handrail 201, the friction is effectively increased to prevent accidental falls caused by slipping hands or feet during escape. The overall structure is simple in design, and the folding and unfolding operations are convenient and quick, making it suitable for rapid deployment and use in emergency situations without the need for complicated tools or professional skills.

[0023] The elastic locking pin 302 includes sleeves 3021 fixed on both sides of the ladder section 1. A locking pin 3022 is slidably connected to the middle of the sleeve 3021. Several locking grooves 3011 are evenly opened in the middle of the locking plate 301. The locking pin 3022 is adapted to the locking grooves 3011. A limiting ring 3023 is fixedly connected to the surface of the locking pin 3022. The limiting ring 3023 is slidably connected inside the sleeve 3021. A pull ring 3024 is rotatably connected to the other end of the locking pin 3022. A spring 3025 is sleeved on the surface of the locking pin 3022. The spring 3025 is located inside the sleeve 3021. One end of the spring 3025 abuts against one end of the sleeve 3021, and the other end of the spring 3025 abuts against one side of the limiting ring 3023.

[0024] With the locking mechanism 3 in place, the locking mechanism 3 uses the elastic locking pin 302 and the locking plate 301 to cooperate during use, which can flexibly adjust the unfolding angle of the ladder section 1 and lock it firmly, preventing the ladder section 1 from folding accidentally during use and ensuring safety during escape.

[0025] The support assembly 4 includes a threaded rod 401, which is threadedly connected to the bottom end of the ladder section 1. A fixing nut 402 is threadedly connected to the surface of the threaded rod 401. A support foot 403 is rotatably connected to the other end of the threaded rod 401. An anti-slip pad 404 is fixedly connected to the bottom end of the support foot 403.

[0026] With the support component 4, which features a threaded rod 401 and adjustable support feet 403, the height and stability of the ladder can be adjusted according to the ground conditions. This ensures stable support in different environments, improves escape safety, and makes it adaptable to various ground conditions with a wide range of applications.

[0027] The remaining structure is the same as that in Example 1.

[0028] The workflow of this utility model is as follows: First, take out the folded escape ladder from the storage location, hold the handrail assembly 2 on both sides of the ladder section 1, and pull the ladder section 1 to unfold it around the folding hinge until the desired angle is reached, usually 180° or the angle can be set according to actual needs. The elastic locking pin 302 automatically engages in the locking groove 3011 of the locking plate 301 under the action of the spring 3025, fixing the unfolded angle of the ladder section 1 and ensuring the ladder is stable. The design of the ladder section 1 connected by the hinge allows the escape ladder to be folded and stored. The folded volume is small, which greatly reduces the space occupied during storage and makes it convenient to store and use in homes, small shopping malls and other places. Secondly, based on the flatness and height requirements of the ground, rotate the threaded rod 401 in the support assembly 4 to adjust the height of the support foot 403, tighten the fixing nut 402 to lock the position of the threaded rod 401, and ensure that the support foot 403 stably supports the ladder. Check whether the anti-slip pad 404 is in full contact with the ground to prevent the ladder from sliding. Through the setting of the support assembly 4, the support assembly 4 adopts the design of threaded rod 401 and adjustable support foot 403, which can adjust the height and stability of the ladder according to the ground conditions, ensuring stable support in different environments, improving escape safety, and thus adapting to different ground environments with a wide range of applications. Finally, the user holds the anti-slip rubber sleeves 203 on the handrail 201 with both hands, steps on the anti-slip protrusions 103 on the crossbar 102, and gradually escapes downwards. After the escape is completed, the user pulls the ring 3024 of the elastic locking pin 302 to release the locking mechanism 3 from fixing the ladder section 1. The ladder section 1 is then rotated around the folding hinge and folded into a compact state for storage. The anti-slip protrusions 103 on the surface of the crossbar 102 and the anti-slip rubber sleeves 203 on the handrail 201 effectively increase friction, preventing accidental falls due to slipping hands or feet during the escape. The overall structure is simple, and the folding and unfolding operations are convenient and quick, making it suitable for rapid deployment and use in emergency situations without the need for complicated tools or professional skills.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A foldable fire emergency escape ladder, characterized in that, include: At least two stair sections (1) are connected by a folding hinge. The folding hinge includes hinge pieces fixed to the ends of adjacent stair sections (1) respectively. The two hinge pieces are rotatably connected by a pin. Handrail assemblies (2) are provided on both sides of each stair section (1). A locking mechanism (3) for limiting the unfolding angle of the stair section (1) is provided at the folding hinge. The locking mechanism (3) includes a locking plate (301) provided on one stair section (1) and an elastic locking pin (302) provided on the other stair section (1). An adjustable support assembly (4) is provided at the bottom of each stair section (1).

2. The collapsible fire emergency escape ladder according to claim 1, wherein, The stair section (1) includes two longitudinal bars (101) on both sides and a plurality of cross bars (102) connected between the two longitudinal bars (101). The cross bars (102) are evenly distributed along the length of the longitudinal bars (101), and the surface of the cross bars (102) is provided with anti-slip protrusions (103).

3. The collapsible fire emergency escape ladder according to claim 2, wherein, The handrail assembly (2) includes a handrail (201) arranged parallel to the longitudinal bar (101). The handrail (201) is fixedly connected to the longitudinal bar (101) through a connecting rod (202). The handrail (201) is fitted with an anti-slip rubber sleeve (203).

4. The collapsible fire emergency escape ladder of claim 1, wherein, The elastic locking pin (302) includes a sleeve (3021) fixed on both sides of the ladder section (1), and a locking pin (3022) is slidably connected in the middle of the sleeve (3021). A plurality of locking grooves (3011) are evenly opened in the middle of the locking plate (301), and the locking pin (3022) is adapted to the locking groove (3011).

5. The collapsible fire emergency escape ladder of claim 4, wherein, The surface of the locking pin (3022) is fixedly connected to a limiting ring (3023), the limiting ring (3023) is slidably connected inside the sleeve (3021), and the other end of the locking pin (3022) is rotatably connected to a pull ring (3024).

6. The collapsible fire emergency escape ladder of claim 5, wherein, A spring (3025) is sleeved on the surface of the locking pin (3022). The spring (3025) is located inside the sleeve (3021). One end of the spring (3025) abuts against one end of the sleeve (3021), and the other end of the spring (3025) abuts against one side of the limiting ring (3023).

7. The collapsible fire emergency escape ladder of claim 1, wherein, The support assembly (4) includes a threaded rod (401), which is threaded to the bottom end of the ladder section (1). A fixing nut (402) is threaded to the surface of the threaded rod (401), and a support foot (403) is rotatably connected to the other end of the threaded rod (401). An anti-slip pad (404) is fixedly connected to the bottom end of the support foot (403).

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