Telescopic escape ladder stand for balcony

Abstract

The utility model discloses a telescopic escape ladder stand for a balcony, which relates to the technical field of escape fire-fighting articles and comprises a mounting box body, an upper cover body is hinged to the upper side of the mounting box body, and a lower cover body is hinged to the lower side of the mounting box body; the opening and closing connecting rod mechanism is arranged on the mounting box body, and the opening and closing connecting rod mechanism is respectively hinged with the upper cover body and the lower cover body; one end of the telescopic stair is hinged to one side of the mounting box body, and the telescopic stair can be stored in the mounting box body in a contraction state; wherein under the condition that the upper cover body is opened to be in a vertical state, the lower cover body is kept in a downwards inclined state, and the telescopic stairs abut against the side wall of the lower cover body under the action of self weight and are automatically unfolded. The telescopic staircase is in an inclined state after being automatically unfolded, and is good in stability, not prone to falling, convenient to escape and also convenient for special crowds to use.

Description

Technical Field

[0001] The utility model relates to the technical field of escape and fire fighting equipment, in particular to a balcony telescopic escape ladder. Background Art

[0002] Nowadays, various residential buildings are getting taller and more crowded. When a fire occurs, the two main ways for people to escape are safe evacuation and passive waiting for rescue: in the event of a fire, the corridor is often filled with smoke, or it is difficult to evacuate due to the fire, which makes active evacuation impossible, especially when there are elderly people and children, it is even more difficult to escape. People often cannot leave the residential building in time and safely, which leads to tragedies; passive waiting for rescue is limited by rescue conditions, such as traffic jams, fire lanes are blocked, and fire truck deployment time and other objective factors. Passive waiting often causes a large amount of smoke to enter the house because the fire brigade rescue time exceeds the golden rescue time. Many people who died in high-rise fires died from inhaling deadly toxic smoke. It can be seen that time is the most important factor in fires.

[0003] The balcony evacuation ladder refers to a safety escape facility added to the balcony, which is mainly used in fire self-rescue scenarios. When a fire occurs indoors or it is impossible to evacuate through the safety exit due to thick smoke, the people in the house can open the balcony escape device to go to a relatively safe place on the next floor, which makes up for the defect of the single escape means of the original residential building, and is suitable for residential areas. In the prior art, the evacuation ladder used for balcony escape mostly adopts a scissor-type telescopic ladder in a box that opens and closes up and down, so that the telescopic ladder can be automatically unfolded when the upper cover of the box is opened. Although the existing balcony evacuation ladder can quickly open the telescopic ladder, one end of the hinged folding telescopic ladder is fixedly connected to the box, and the other end is in a vertical free state. The upper and lower covers must be unfolded at an angle of 90 degrees, otherwise the telescopic ladder cannot complete the free fall and will be partially stuck by the lower cover. The vertical ladder is prone to shaking, poor stability, and difficult to use without professional training. It is easy to fall and fall during the escape operation. It is especially difficult to escape when there are elderly people and children. Utility Model Content

[0004] In view of the technical problem that the existing balcony evacuation ladder has poor stability in a vertical state after being unfolded, the utility model provides a balcony telescopic escape ladder. The telescopic stairs arranged therein are in an inclined state after being automatically unfolded, have good stability, are not easy to fall, are convenient for escape, and are also easy for special groups to use.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model provides a balcony telescopic escape ladder, comprising: an installation box, an upper cover body hinged on the upper side of the installation box, and a lower cover body hinged on the lower side of the installation box; an opening and closing connecting rod mechanism, the opening and closing connecting rod mechanism is arranged on the installation box, and the opening and closing connecting rod mechanism is hinged to the upper cover body and the lower cover body respectively; a telescopic staircase, one end of the telescopic staircase is hinged to one side of the installation box, and the telescopic staircase can be stored in the installation box in a retracted state; wherein, when the upper cover body is opened to a vertical state, the lower cover body keeps a downwardly inclined state, and the telescopic staircase abuts against the side wall of the lower cover body under its own weight and automatically unfolds.

[0007] The utility model provides a telescopic balcony escape ladder, comprising an installation box, an opening and closing connecting rod mechanism and a telescopic staircase, wherein an upper cover body is hingedly connected to the upper side of the installation box body, and a lower cover body is hingedly connected to the lower side of the installation box body, so that the installation box body can form a passage communicating up and down after the upper cover body and the lower cover body are opened, that is, when the installation box body is installed on the balcony through, the installation box body can be opened to communicate with the space above and below the balcony, the opening and closing connecting rod mechanism is arranged on the installation box body, and the opening and closing connecting rod mechanism is hingedly connected to the upper cover body and the lower cover body respectively, so that the upper cover body and the lower cover body are linked to each other, so that the lower cover body can be opened at the same time as the upper cover body is opened, one end of the telescopic staircase is hingedly connected to one side of the installation box body, and the telescopic staircase can be stored in the installation box body in a retracted state, so that the telescopic staircase can be stored through the installation box body to avoid the ladder protruding out of the balcony floor as a whole, and after the lower cover body is opened, the telescopic staircase rotates downward under the action of its own gravity and automatically unfolds.

[0008] When the upper cover is opened to a vertical state, the lower cover remains in a downwardly inclined state, so that the telescopic stairs are against the side wall of the lower cover under their own weight to maintain an inclined state. Therefore, the telescopic stairs for balcony escape provided by the utility model are in an inclined state after being unfolded, have good stability, are not easy to fall, are convenient for escape, and are also convenient for special people to use.

[0009] In an optional embodiment, the hinges of the upper cover, the lower cover and the telescopic staircase with the installation box are all located at the same end in the length direction of the installation box to ensure that the opening directions of the upper cover and the lower cover are consistent and the opening direction of the telescopic staircase is on the same side as the opening position of the upper cover, thereby facilitating quick escape.

[0010] In an optional embodiment, the opening and closing linkage mechanism includes: a first link, which is a broken line type, and the middle part of the first link is hinged to the installation box; a second link, one end of the second link is hinged to one end of the first link, and the other end of the second link is hinged to the upper cover; a third link, one end of the third link is hinged to the other end of the first link, and the other end of the third link is hinged to the lower cover; wherein, when the upper cover is opened to a vertical state, the distance from the hinge point of the second link and the upper cover to the hinge point of the first link and the installation box is greater than the distance from the hinge point of the third link and the lower cover to the hinge point of the first link and the installation box, so as to ensure that when the upper cover is opened to a vertical state, the lower cover can maintain a downward tilted state.

[0011] In an optional embodiment, the length of the second connecting rod is greater than the length of the third connecting rod, so as to facilitate connecting the opening and closing connecting rod mechanism to the upper cover body and the lower cover body respectively.

[0012] In an optional embodiment, it also includes an opener and retractor, which is fixed on the installation box; the opener and retractor is provided with a winding wheel, and the winding wheel winds up a cable, one end of the cable is connected to the other end of the telescopic staircase, so as to facilitate the use of the folding telescopic staircase.

[0013] In an optional embodiment, the starter and retractor is further provided with a hand wheel, and the hand wheel is transmission-connected with the reel to facilitate manual driving of the reel to rotate.

[0014] In an optional embodiment, the handwheel is provided with a ratchet, and the opener is provided with a pawl mechanism adapted to the handwheel, and the pawl mechanism can release the cooperation between the pawl and the ratchet to ensure that the telescopic stairs can be quickly unfolded while the telescopic stairs will not be automatically unfolded during the folding process.

[0015] In an optional embodiment, the telescopic staircase is a scissor-link folding ladder, so that the telescopic staircase has a sufficient automatic unfolding speed.

[0016] In an optional embodiment, the telescopic staircase is provided with pedals to ensure the safe use of the telescopic staircase.

[0017] In an optional embodiment, the telescopic staircase is a telescopic cylinder folding staircase, so that the telescopic staircase is easy to hold.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0019] The utility model provides a balcony telescopic escape ladder, comprising an installation box, an opening and closing connecting rod mechanism and a telescopic staircase, wherein an upper cover is hingedly connected to the upper side of the installation box, and a lower cover is hingedly connected to the lower side of the installation box, so that the installation box can form a vertically connected passage after the upper cover and the lower cover are opened, that is, when the installation box is installed on the balcony through, the space above and below the balcony can be connected by opening the installation box, the opening and closing connecting rod mechanism is arranged on the installation box, and the opening and closing connecting rod mechanism is respectively hingedly connected to the upper cover and the lower cover, so that the upper cover and the lower cover are linked to each other, so that the lower cover can be opened at the same time when the upper cover is opened. The cover body, one end of the telescopic staircase is hinged to one side of the installation box body, and the telescopic staircase can be stored in the installation box body in a retracted state, so as to store the telescopic staircase through the installation box body to avoid the ladder protruding from the balcony floor as a whole; and after the lower cover body is opened, the telescopic staircase rotates downward under the action of its own gravity and automatically unfolds; because when the upper cover body is opened to a vertical state, the lower cover body maintains a downwardly inclined state, so that the telescopic staircase rests against the side wall of the lower cover body under its own weight to maintain an inclined state, therefore, the ladder has good stability, is not easy to fall, is convenient for escape, and is also convenient for special people to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] In the attached picture:

[0022] Figure 1 The internal structure diagram of the balcony telescopic escape ladder recorded in Example 1 of the utility model;

[0023] Figure 2 A schematic top view of the internal structure of the balcony telescopic escape ladder according to Embodiment 1 of the present utility model;

[0024] Figure 3 It is a schematic structural diagram of the balcony telescopic escape ladder in the unfolded state according to the first embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the balcony telescopic escape ladder after being unfolded as described in Example 2 of the utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the balcony telescopic escape ladder recorded in Example 2 of the utility model after being unfolded.

[0027] Marks and corresponding parts names in the attached drawings:

[0028] 10-installation box, 11-upper cover, 12-lower cover;

[0029] 20-opening and closing connecting rod mechanism, 21-first connecting rod, 22-second connecting rod, 23-third connecting rod;

[0030] 30- telescopic staircase, 31- step board;

[0031] 40-opener and retractor, 41-reeling wheel, 42-hand wheel, 43-ratchet mechanism;

[0032] 50- Cable. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0034] In the description of the embodiments of the present application, the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is conventionally placed when in use, or is the orientation or position relationship conventionally understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] At the same time, the terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0036] Example 1

[0037] Combination Figure 1-Figure 3The present embodiment provides a balcony telescopic escape ladder, comprising: an installation box 10, an upper cover 11 hinged on the upper side of the installation box 10, and a lower cover 12 hinged on the lower side of the installation box 10; an opening and closing connecting rod mechanism 20, the opening and closing connecting rod mechanism 20 is arranged on the installation box 10, and the opening and closing connecting rod mechanism 20 is hinged to the upper cover 11 and the lower cover 12 respectively; a telescopic staircase 30, one end of the telescopic staircase 30 is hinged to one side of the installation box 10, and the telescopic staircase 30 can be stored in the installation box 10 in a retracted state; wherein, when the upper cover 11 is opened to a vertical state, the lower cover 12 remains in a downwardly inclined state, and the telescopic staircase 30 abuts against the side wall of the lower cover 12 under its own weight and automatically unfolds.

[0038] It can be understood that the hinges of the upper cover body 11, the lower cover body 12 and the telescopic staircase 30 with the installation box body 10 are all located at the same end in the length direction of the installation box body 10, so as to ensure that the opening directions of the upper cover body 11 and the lower cover body 12 are consistent, and the opening direction of the telescopic staircase 30 is on the same side as the opening position of the upper cover body 11, so as to facilitate quick escape.

[0039] Combination Figure 1 and Figure 3 Specifically, the opening and closing linkage mechanism 20 includes: a first linkage 21, the first linkage 21 is a broken line type, and the middle part of the first linkage 21 is hinged to the installation box 10; a second linkage 22, one end of the second linkage 22 is hinged to one end of the first linkage 21, and the other end of the second linkage 22 is hinged to the upper cover 11; a third linkage 23, one end of the third linkage 23 is hinged to the other end of the first linkage 21, and the other end of the third linkage 23 is hinged to the lower cover 12; wherein, when the upper cover 11 is opened to a vertical state, the distance from the hinge point of the second linkage 22 and the upper cover 11 to the hinge point of the first linkage 21 and the installation box 10 is greater than the distance from the hinge point of the third linkage 23 and the lower cover 12 to the hinge point of the first linkage 21 and the installation box 10, so as to ensure that when the upper cover 11 is opened to a vertical state, the lower cover 12 can maintain a downward tilted state.

[0040] Generally speaking, the length of the second connecting rod 22 is greater than that of the third connecting rod 23. At the same time, the length of the section where the first connecting rod 21 and the second connecting rod 22 are connected is greater than the length of the section where the first connecting rod 21 and the third connecting rod 23 are connected, so as to facilitate connecting the opening and closing connecting rod mechanism 20 to the upper cover body 11 and the lower cover body 12 respectively.

[0041] On this basis, combined with Figure 1 and Figure 3, further comprising an opening and retracting device 40, the opening and retracting device 40 being fixed on the installation box 10; the opening and retracting device 40 being provided with a reel 41, the reel 41 reeling a cable 50, one end of the cable 50 being connected to the other end of the telescopic staircase 30, so as to facilitate the use of the folding telescopic staircase 30. The cable 50 may be a flexible belt, a steel rope, etc.

[0042] Combination Figure 1 Specifically, the opening and closing device 40 is further provided with a hand wheel 42, and the hand wheel 42 is transmission-connected with the winding wheel 41, so as to facilitate manual driving of the winding wheel 41 to rotate.

[0043] It can be understood that the hand wheel 42 is provided with a ratchet, and the opening and closing device 40 is provided with a pawl mechanism 43 adapted to the hand wheel 42, and the pawl mechanism 43 can release the cooperation between the pawl and the ratchet to ensure that during the process of folding the telescopic staircase 30, the telescopic staircase 30 will not automatically unfold, and the telescopic staircase 30 can be quickly unfolded.

[0044] It should be noted that the pawl mechanism 43 only needs to be able to cooperate with the ratchet on the hand wheel 42 in a natural state and be able to pull the pawl out. In this embodiment, a spring-type pawl mechanism 43 is used to release the pawl by stepping on it, so that when the telescopic staircase 30 needs to be unfolded, the pawl mechanism 43 can be pressed by foot to reverse the hand wheel 42.

[0045] In this embodiment, the telescopic staircase 30 is a telescopic cylinder type folding ladder, so that the telescopic staircase 30 is easy to hold.

[0046] In summary, the balcony telescopic escape ladder provided by the utility model comprises an installation box 10, an opening and closing connecting rod mechanism 20, a telescopic staircase 30 and an opening and closing device 40. An upper cover 11 is hingedly connected to the upper side of the installation box 10, and a lower cover 12 is hingedly connected to the lower side of the installation box 10, so that the installation box 10 can form a vertically connected passage after opening the upper cover 11 and the lower cover 12, that is, when the installation box 10 is installed on the balcony, the space above and below the balcony can be connected by opening the installation box 10. The opening and closing connecting rod mechanism 20 is arranged on the installation box 10, and the opening and closing connecting rod mechanism 20 is respectively hinged with the upper cover body 11 and the lower cover body 12, so that the upper cover body 11 and the lower cover body 12 are linked, so as to realize opening the lower cover body 12 while opening the upper cover body 11, and one end of the telescopic staircase 30 is hinged with one side of the installation box 10, and the telescopic staircase 30 can be stored in the installation box 10 in a retracted state, so as to store the telescopic staircase 30 through the installation box 10 to avoid the ladder protruding from the balcony floor as a whole, and after the lower cover body 12 is opened, the retractor 40 is opened, and the telescopic staircase 30 rotates downward under the action of its own gravity and automatically unfolds.

[0047] When the upper cover 11 is opened to a vertical state, the lower cover 12 remains in a downwardly inclined state, so that the telescopic staircase 30 abuts against the side wall of the lower cover 12 under its own weight to maintain an inclined state.

[0048] Therefore, the balcony telescopic escape ladder provided in this embodiment has a telescopic ladder 30 that is in an inclined state after being unfolded, has good stability, is not easy to fall, is convenient for escape, and is also convenient for special groups of people to use.

[0049] Example 2

[0050] Combination Figure 4 and Figure 5 The present embodiment provides a balcony telescopic escape ladder, which is based on the balcony telescopic escape ladder described in Example 1, except that the telescopic ladder 30 is a scissor-link type folding ladder, so that the telescopic ladder 30 has a sufficient automatic unfolding speed.

[0051] Combination Figure 5 The telescopic staircase 30 is provided with a pedal 31 to ensure the safety of the telescopic staircase 30.

[0052] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A balcony telescopic escape ladder, characterized in that: include: An installation box (10), wherein an upper cover (11) is hingedly connected to the upper side of the installation box (10), and a lower cover (12) is hingedly connected to the lower side of the installation box (10); an opening and closing connecting rod mechanism (20), the opening and closing connecting rod mechanism (20) being arranged on the installation box body (10), and the opening and closing connecting rod mechanism (20) being hingedly connected to the upper cover body (11) and the lower cover body (12) respectively; A telescopic staircase (30), one end of the telescopic staircase (30) being hinged to one side of the installation box (10), and the telescopic staircase (30) being able to be stored in the installation box (10) in a retracted state; Wherein, when the upper cover (11) is opened to a vertical state, the lower cover (12) remains in a downwardly inclined state, and the telescopic staircase (30) abuts against the side wall of the lower cover (12) under its own weight and automatically unfolds; The opening and closing link mechanism (20) comprises a first link (21), a second link (22) and a third link (23); the first link (21) is a broken line type; the middle portion of the first link (21) is hinged to the installation box (10); one end of the second link (22) is hinged to one end of the first link (21); the other end of the second link (22) is hinged to the upper cover (11); one end of the third link (23) is hinged to the other end of the first link (21); and the other end of the third link (23) is hinged to the lower cover (12); Wherein, when the upper cover (11) is opened to a vertical state, the distance from the hinge point between the second connecting rod (22) and the upper cover (11) to the hinge point between the first connecting rod (21) and the installation box (10) is greater than the distance from the hinge point between the third connecting rod (23) and the lower cover (12) to the hinge point between the first connecting rod (21) and the installation box (10).

2. The balcony telescopic escape ladder according to claim 1, characterized in that: The hinged points between the upper cover body (11), the lower cover body (12), the telescopic staircase (30) and the installation box body (10) are all located at the same end in the length direction of the installation box body (10).

3. The balcony telescopic escape ladder according to claim 1, characterized in that: The length of the second connecting rod (22) is greater than the length of the third connecting rod (23).

4. The balcony telescopic escape ladder according to claim 1, characterized in that: It also includes an opener (40), wherein the opener (40) is fixed on the installation box (10); The starter (40) is provided with a reel (41), and the reel (41) reels a cable, one end of the cable being connected to the other end of the telescopic staircase (30).

5. The balcony telescopic escape ladder according to claim 4, characterized in that: The opening and retracting device (40) is further provided with a hand wheel (42), and the hand wheel (42) is transmission-connected to the reel wheel (41).

6. The balcony telescopic escape ladder according to claim 5, characterized in that: The hand wheel (42) is provided with a ratchet, and the opener (40) is provided with a ratchet mechanism (43) adapted to the hand wheel (42), wherein the ratchet mechanism (43) can release the matching between the ratchet and the ratchet.

7. The balcony telescopic escape ladder according to claim 1, characterized in that: The telescopic staircase (30) is a scissor-link type folding staircase.

8. The balcony telescopic escape ladder according to claim 7, characterized in that: The telescopic staircase (30) is provided with a pedal (31).

9. The balcony telescopic escape ladder according to claim 1, characterized in that: The telescopic staircase (30) is a telescopic cylinder type folding staircase.

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