Inward opening type escape ladder

Abstract

The utility model discloses an inward opening type escape ladder which comprises a supporting assembly, a plurality of telescopic assemblies, connecting assemblies and a fixing assembly, the telescopic assemblies are sequentially connected to form a telescopic structure, the number of the connecting assemblies is two, and the connecting assemblies are connected with the two ends of the telescopic structure respectively. The two connecting assemblies are hinged to one end of the fixing assembly and one end of the supporting assembly respectively, the supporting assembly is fixed to the outer side of a wall, and the fixing assembly is detachably installed on the wall. According to the utility model, the preparation time required for escape is greatly shortened, the storage position can be prevented from being forgotten, and precious escape time is won for escapers. In non-emergency situations, the escape ladder can be combined with an anti-theft window to be used together, and the anti-theft function is achieved.

Description

Technical Field

[0001] The utility model relates to an escape ladder, in particular to an inward-opening escape ladder. Background Art

[0002] A suspended escape ladder is a specialized device designed to help people quickly reach safety by being hung from a building's exterior wall or staircase. This type of ladder can be stored in a bag and deployed for the user to climb and escape. Because escape ladders are typically used in emergencies, it can be difficult to immediately locate them. Furthermore, hanging a ladder requires considerable preparation time, potentially causing escapees to miss their prime escape window. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an inward-opening escape ladder.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] An inward-opening escape ladder includes a support assembly, multiple retractable assemblies, a connecting assembly, and a fixed assembly. The multiple retractable assemblies are sequentially connected to form a retractable structure. There are two connecting assemblies, which are respectively connected to the two ends of the retractable structure. The two connecting assemblies are respectively hinged to the fixed assembly and one end of the support assembly. The support assembly is fixed to the outside of the wall, and the fixed assembly is detachably mounted on the wall.

[0006] Furthermore, there are two groups of support components, which are symmetrically arranged on both sides of the connecting component. Each group of support components includes a support base and a connecting rod. The two ends of the connecting rod are respectively hinged to the support base and the connecting component, and the support base is fixed to the outside of the wall.

[0007] Furthermore, the two support seats are connected by a fixing rod.

[0008] Furthermore, two adjacent retractable components are hinged respectively.

[0009] Furthermore, the retractable component includes a support plate, a first connecting member symmetrically fixed on both sides of the support plate, and a second connecting member symmetrically arranged on the outside of the first connecting member, each of the second connecting members is hinged to one of the first connecting members, the two ends of the first connecting member are hinged to one end of the adjacent second connecting member or the connecting component, and the two ends of the second connecting member are hinged to one end of the adjacent first connecting member or the connecting component.

[0010] Furthermore, the first connecting member and the second connecting member respectively include an upper arc portion, a transition portion and a lower arc portion, the upper arc portion and the lower arc portion are connected by the transition portion, the upper arc portion and the lower arc portion respectively protrude outward to form an arc portion, and the support plate is fixed on the transition portion of the first connecting member.

[0011] Furthermore, the connecting assembly includes symmetrically arranged bendable plates, the middle portion of each bendable plate is a bendable portion, and both ends of each bendable plate are hinged to the telescopic structure respectively.

[0012] Each of the bendable plates includes two connecting arc plates, one end of the two connecting arc plates are hinged together to form a hinged part, the other ends of the two connecting arc plates are respectively hinged to the telescopic structure, one end of the connecting rod is hinged to the hinged part of one of the connecting components, and the fixed component is hinged to the hinged part of the other connecting component.

[0013] Furthermore, the fixing assembly includes two flexible rods and two limiting seats, one end of the two flexible rods is hinged to the connecting assembly respectively, and the other end of the two flexible rods is detachably connected to one of the limiting seats respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The present utility model can play an anti-theft function when combined with a retractable structure. Sunlight shines into the house through the gaps in the retractable structure. When an emergency situation requires escape, the fixed component is quickly opened and an outward force is applied to the retractable structure. Under the action of external force and its own gravity, the retractable structure flips with the support seat as the axis, and stretches under the action of its own gravity, quickly turning into an escape ladder to help people in the house enter the next floor. When escaping, the retractable structure is supported by the support seat so that a certain gap is left between it and the outside of the wall, making it convenient for the feet to step on. The present utility model greatly shortens the preparation time required for escape, and can avoid forgetting the storage location, thus buying precious escape time for the escapee. In non-emergency situations, the escape ladder can also play an anti-theft function. Users no longer need to purchase and install anti-theft windows separately, which can also save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the normal use state of the utility model;

[0017] Figure 2 This is a schematic diagram of the escape state of the utility model;

[0018] Figure 3 It is a structural diagram of a scalable component;

[0019] Figure 4 is a schematic diagram of the positional relationship between the support plate and the first connecting member;

[0020] Figure 5 is a structural schematic diagram of the second connecting member;

[0021] In the figure: 1. Support seat; 2. Connecting rod; 3. Retractable component; 31. Support plate; 32. First connecting member; 33. Second connecting member; 4. Connecting assembly; 5. Fixed assembly; 51. Flexible rod; 52. Limiting seat. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1-Figure 2 As shown, an inward-opening escape ladder includes a support assembly, multiple retractable assemblies 3, a connecting assembly 4 and a fixed assembly 5. Multiple retractable assemblies 3 are connected in sequence to form a retractable structure. Two adjacent retractable assemblies 3 are hinged respectively. There are two connecting assemblies 4 and they are respectively connected to the two ends of the retractable structure. The two connecting assemblies 4 are respectively hinged to the fixed assembly 5 and one end of the support assembly. The support assembly is fixed to the outside of the wall, and the fixed assembly 5 is detachably installed on the wall.

[0026] There are two groups of support components, which are symmetrically arranged on both sides of the connecting component 4. Each group of support components includes a support base 1 and a connecting rod 2. The two ends of the connecting rod 2 are hinged to the support base 1 and the connecting component 4 respectively. The support base 1 is fixed to the outside of the wall, and the two support bases 1 are connected by a fixing rod.

[0027] When installing the escape ladder, the retractable structure is in the retracted state, the support base 1 is fixed to the outside of the wall below the window, the fixing component 5 is fixed to the wall above the window, and the other end of the retractable structure is fixed by the fixing component 5. In normal use, such as Figure 1 As shown, the escape ladder can play an anti-theft function. Sunlight shines into the house through the gaps in the retractable structure. When an emergency requires escape, the fixing component 5 is quickly opened and an outward force is applied to the retractable structure. The retractable structure flips around the support base 1 under the action of the external force and its own gravity, and stretches under the action of its own gravity, quickly turning into an escape ladder. Figure 2 As shown, each retractable component 3 can function as a footrest, helping occupants reach the next level. During escape, the retractable structure is supported by the support base 1, leaving a certain gap between it and the outside of the wall for easy access. This utility model significantly shortens the preparation time required for escape and prevents the storage location from being forgotten, giving escapees valuable time to escape. In non-emergency situations, the escape ladder can also serve as an anti-theft function, eliminating the need for users to purchase and install anti-theft windows separately, thus saving costs.

[0028] like Figure 1-Figure 5 As shown, the retractable assembly 3 includes a support plate 31, first connectors 32 symmetrically fixed on either side of the support plate 31, and second connectors 33 symmetrically arranged outside the first connectors 32. Each second connector 33 is hingedly connected to one of the first connectors 32. The ends of a first connector 32 are hingedly connected to one end of an adjacent second connector 33 or to the connector assembly 4. The ends of a second connector 33 are hingedly connected to one end of an adjacent first connector 32 or to the connector assembly 4. To escape, the user steps on the support plate 31 with one foot and grasps the first connector 32 and the second connector 33 with both hands.

[0029] like Figure 4 、 Figure 5As shown, the first connector 32 and the second connector 33 each include an upper arc portion, a transition portion, and a lower arc portion. The upper and lower arc portions are connected by the transition portion, and the upper and lower arc portions each protrude outward to form an arc portion. The support plate 31 is fixed to the transition portion of the first connector 32. By designing the first and second connectors 32 and 33 with a special structure, the retractable distance can be maximized. In the retracted state, the retractable structure is stacked outside the window to provide a theft prevention function. When escaping, the length of the escape ladder can be increased as much as possible, allowing people inside the house to reach the next floor more safely.

[0030] like Figure 1-Figure 2 As shown, the connecting assembly 4 includes symmetrically arranged bendable plates, the middle portion of each bendable plate is a bendable portion, and both ends of each bendable plate are hinged to the telescopic structure respectively.

[0031] Each bendable plate includes two connecting arc plates, one end of the two connecting arc plates are hinged together to form a hinged part, the other ends of the two connecting arc plates are respectively hinged to the telescopic structure, one end of the connecting rod 2 is hinged to the hinged part of one of the connecting components 4, and the fixed component 5 is hinged to the hinged part of the other connecting component 4.

[0032] like Figure 1 As shown, the fixing assembly 5 includes two flexible rods 51 and two limiting seats 52. One end of the two flexible rods 51 is hinged to the hinged part of the connecting assembly 4 respectively, and the other end of the two flexible rods 51 is detachably connected to one of the limiting seats 52.

[0033] When installing a security window, a through-hole is drilled in the wall for the flexible rod 51 to pass through. The rod is then secured with a stopper 52, which is located inside the window. During normal use, the flexible rod 51 cannot be pulled out from the outside of the wall, thus preventing theft. To escape, the stopper 52 is removed from inside the window, and an outward force is applied to the flexible rod 51, protruding it through the through-hole and out of the wall. The method for securing the flexible rod 51 and the stopper 52 can be similar to the knot method or other existing securing methods.

[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An inward-opening escape ladder, characterized in that: It includes a supporting component, multiple telescopic components, a connecting component and a fixing component. The multiple telescopic components are connected in sequence to form a telescopic structure. There are two connecting components, which are respectively connected to the two ends of the telescopic structure. The two connecting components are respectively hinged to the fixing component and one end of the supporting component. The supporting component is fixed to the outside of the wall, and the fixing component is detachably installed on the wall.

2. The inward-opening escape ladder according to claim 1, characterized in that: There are two groups of support components, which are symmetrically arranged on both sides of the connecting component. Each group of support components includes a support base and a connecting rod. The two ends of the connecting rod are hinged to the support base and the connecting component respectively, and the support base is fixed on the outside of the wall.

3. The inward-opening escape ladder according to claim 2, characterized in that: The two support seats are connected via a fixing rod.

4. The inward-opening escape ladder according to claim 1, characterized in that: The two adjacent retractable components are hinged respectively.

5. The inward-opening escape ladder according to claim 4, characterized in that: The retractable component includes a support plate, a first connecting member symmetrically fixed on both sides of the support plate, and a second connecting member symmetrically arranged on the outside of the first connecting member, each of the second connecting members is hinged to one of the first connecting members, the two ends of the first connecting member are hinged to one end of the adjacent second connecting member or the connecting component, and the two ends of the second connecting member are hinged to one end of the adjacent first connecting member or the connecting component.

6. The inward-opening escape ladder according to claim 5, characterized in that: The first connecting member and the second connecting member respectively include an upper arc portion, a transition portion and a lower arc portion, the upper arc portion and the lower arc portion are connected by the transition portion, the upper arc portion and the lower arc portion respectively protrude outward to form arc portions, and the support plate is fixed on the transition portion of the first connecting member.

7. The inward-opening escape ladder according to claim 2, characterized in that: The connecting assembly includes symmetrically arranged bendable plates, the middle portion of each bendable plate is a bendable portion, and both ends of each bendable plate are hinged to the telescopic structure respectively.

8. The inward-opening escape ladder according to claim 1, characterized in that: The fixing assembly includes two flexible rods and two limiting seats. One end of the two flexible rods is hinged to the connecting assembly respectively, and the other end of the two flexible rods is detachably connected to one of the limiting seats respectively.

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