Elevator car top safety escape device

Abstract

The present application provides a car top safety escape device for an elevator car, comprising a car body, the car body comprising a rectangular car body formed by a plurality of side panels, and a top plate and a bottom plate arranged at the upper and lower ends of the rectangular car body, an escape through hole being arranged on the top plate, a closing plate being hingedly mounted on the escape through hole, a retractable ladder assembly being arranged at the outer end of the closing plate, and a first locking mechanism, a second locking mechanism and a brake mechanism being further arranged on the top plate; the retractable ladder assembly is retractable so that the ladder can be extended as far as possible downward, so that passengers can climb up the ladder to escape, and in addition, when the closing plate is opened, the brake mechanism can be driven to work by the transmission mechanism, and the brake mechanism can contact the wall of the elevator shaft, thereby locking the car body to prevent the car body from accidentally falling and allowing passengers to escape quickly.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and in particular to a car top safety escape device for an elevator car. Background Art

[0002] During the operation of the elevator, the elevator may fall or get stuck due to aging of the equipment or interference from external factors. At this time, since the elevator door cannot be opened normally, in order to quickly save themselves or be rescued, the trapped people can escape from the trapped car through the escape structure installed on the top of the car.

[0003] However, there are still some problems with the existing elevator car ceiling escape structure. The specific problems are as follows: 1. The general elevator car ceiling escape structure has a simple structure, and an escape hole is set on the top of the car. It is difficult for one person to climb up the escape hole; 2. Since vibration is easily generated during the escape process, the car may fall accidentally, which has low safety. Summary of the invention

[0004] The purpose of the present application is to provide a car top safety escape device for an elevator car to solve at least one of the problems in the above-mentioned background technology.

[0005] This application is implemented through the following technical solutions:

[0006] An elevator car roof safety escape device includes a car body, the car body includes a rectangular car body formed by a plurality of side panels, and a top plate and a bottom plate arranged at the upper and lower ends of the rectangular car body, an escape through hole is arranged on the top plate, a closing plate is hingedly installed on the escape through hole, a retractable ladder assembly is arranged at the outer end of the closing plate, a first locking mechanism, a second locking mechanism and a brake mechanism are also arranged on the top plate, the first locking mechanism is used to lock the closing plate in a horizontal state of closing the escape through hole, the second locking mechanism is used to lock the closing plate in a vertical state of opening the escape through hole, the brake mechanism can contact the wall of the elevator shaft, and a transmission mechanism is also arranged between the brake mechanism and the closing plate, and when the closing plate is in the opening process, the transmission mechanism can drive the brake mechanism to work.

[0007] In some embodiments, the retractable ladder assembly includes a first ladder disposed on an outer end wall surface of a closing plate, and a second ladder is slidably disposed on the first ladder along a length direction of the closing plate.

[0008] In some embodiments, there are stoppers symmetrically arranged on the left and right outer end wall of the closing plate, a slide groove is arranged on the inner side of the stopper, a limiting groove is arranged on the slide groove, guide blocks are arranged on the left and right sides of the second ladder, a limiting block is arranged on the guide block, the guide block is slidably arranged in the slide groove, and the limiting block is slidably arranged in the limiting groove.

[0009] In some embodiments, the first locking mechanism includes a micro push rod motor arranged on the top plate, the push rod of the micro push rod motor is provided with a moving seat, the lower end of the moving seat is movably extended into the car body and is connected to a gear rod, one end of the gear rod extends to the lower end of the closing plate.

[0010] In some embodiments, a rope is provided at the end of the closing plate away from the hinged end, and a one-way swing limit plate is provided on the movable seat. Both ends of the rope are connected to the closing plate, and the rope is fixed to the movable seat through the one-way swing limit plate. When the movable seat drives the one-way swing limit plate to move, the rope can be detached from the one-way swing limit plate.

[0011] In some embodiments, the second locking mechanism includes a groove arranged on the lower wall surface of the closing plate, a locking block is movably arranged in the groove, a spring is connected between the locking block and the groove, and the upper side of the outer end of the locking block is a first inclined surface.

[0012] In some embodiments, the brake mechanism is provided with two groups, which are symmetrically arranged on the upper end of the top plate. The brake mechanism includes a guide seat arranged on the top plate, a moving rod sliding left and right in the guide seat, the inner end of the moving rod is an arc structure, and a brake plate is arranged at the outer end.

[0013] In some embodiments, the transmission mechanism includes an extension seat disposed on the hinged end of the closing plate, and both sides of the extension seat are provided with a second inclined surface capable of pushing the inner end of the moving rod.

[0014] In some embodiments, a rubber convex strip is provided at the outer end of the brake plate.

[0015] In some embodiments, a tension spring is connected between the guide seat and the brake plate.

[0016] Compared with the prior art, the present application has the following advantages: when an accident occurs in the car body and escape is required, the closing plate can be unlocked by the first locking mechanism first, the closing plate can be flipped to open the escape hole, and the closing plate can be locked in a vertical state by the second locking mechanism, and then the retractable ladder assembly can be set, and the retractable ladder assembly can be retracted so that the ladder can be extended as far as possible, making it convenient for passengers to climb up the ladder to escape. In addition, when the closing plate is opened, the brake mechanism can be driven to work by the transmission mechanism, and the brake mechanism can contact the wall of the elevator shaft, thereby locking the car body, preventing the car body from falling accidentally, and allowing passengers to escape quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a three-dimensional schematic diagram of the escape through hole of the present application when it is closed.

[0019] Figure 2 This is a cross-sectional schematic diagram of the escape through hole of the present application when it is closed.

[0020] Figure 3 This is a three-dimensional schematic diagram of the escape through hole of the present application when it is opened.

[0021] Figure 4 This is a cross-sectional schematic diagram of the escape through hole of the present application when it is opened.

[0022] Figure 5 This is one of the partial schematic diagrams of this application.

[0023] Figure 6 This is the second partial schematic diagram of this application.

[0024] Figure 7 This is a schematic diagram of the retractable ladder assembly of the present application when it is retracted.

[0025] Figure 8 This is a schematic diagram of the retractable ladder assembly of the present application when extended.

[0026] Fig. 9 For this application Figure 8 An enlarged schematic diagram of point B.

[0027] Fig.10 For this application Figure 4 An enlarged schematic diagram of point A. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] like Figures 1 to 10As shown, the embodiment of the present application proposes a car top safety escape device for an elevator car, including a car body 1, the car body 1 includes a rectangular car body 2 formed by a plurality of side panels, and a top plate 3 and a bottom plate 4 arranged at the upper and lower ends of the rectangular car body 2, an escape through hole 5 is arranged on the top plate 3, a closing plate 6 is hingedly installed on the escape through hole 5, a retractable ladder assembly is arranged on the outer end of the closing plate 6, a first locking mechanism, a second locking mechanism and a brake mechanism are also arranged on the top plate 3, the first locking mechanism is used to lock the closing plate 6 in a horizontal state of closing the escape through hole 5, the second locking mechanism is used to lock the closing plate 6 in a vertical state of opening the escape through hole 5, the brake mechanism can contact the wall of the elevator shaft, and a transmission mechanism is also arranged between the brake mechanism and the closing plate 6, and when the closing plate 6 is in the opening process, the transmission mechanism can drive the brake mechanism to work.

[0030] When an accident occurs in the car body 1 and escape is required, the closing plate 6 can be unlocked by the first locking mechanism first, the closing plate 6 can be flipped to open the escape through hole 5, and the closing plate 6 can be locked in a vertical state by the second locking mechanism. Then, the retractable ladder assembly can be set, and the retractable ladder assembly can be retracted so that the ladder can be extended as far as possible to facilitate passengers to climb up the ladder to escape. In addition, when the closing plate 6 is opened, the brake mechanism can be driven to work by the transmission mechanism, and the brake mechanism can contact the wall of the elevator shaft, thereby locking the car body 1 to prevent the car body from falling accidentally and allowing passengers to escape quickly.

[0031] See also Figure 7-Figure 9 As shown, the retractable ladder assembly includes a first ladder 21 arranged on the outer end wall of the closing plate 6, and a second ladder 22 is slidably arranged on the first ladder 21 along the length direction of the closing plate 6.

[0032] A stopper 31 is symmetrically arranged on the outer end wall of the closing plate 6, a slide groove 32 is arranged on the inner side of the stopper 31, a limiting groove 33 is arranged on the slide groove 32, and a guide block 34 is arranged on the left and right sides of the second ladder 22, a limiting block 36 is arranged on the guide block 34, the guide block 34 is slidably arranged in the slide groove 32, and the limiting block 36 is slidably arranged in the limiting groove 33, so that the second ladder 22 can be extended and retracted.

[0033] See also Figure 5-7As shown, the first locking mechanism includes a micro push rod motor 41 arranged on the top plate 3, and the push rod of the micro push rod motor 41 is provided with a moving seat 42. The lower end of the moving seat 42 is movably extended into the car body 1 and is connected to a gear rod 43. One end of the gear rod 43 extends to the lower end of the closing plate 6. Of course, an emergency button (not shown in the drawings) is provided in the car body 1. The micro push rod motor 41 is driven by the emergency button to work, so that the gear rod 43 is separated from the closing plate 6, and the closing plate 6 can be opened.

[0034] Furthermore, a rope 51 is provided at the end of the closing plate 6 away from the hinged end, and a one-way swing limit plate 52 is provided on the moving seat 42. Both ends of the rope 51 are connected to the closing plate 6, and the rope 51 is fixed to the moving seat 42 through the one-way swing limit plate 52. When the moving seat 42 drives the one-way swing limit plate 52 to move, the rope 51 can be detached from the one-way swing limit plate 52. It should be noted that the hinge of the closing plate 6 has a damping structure, so that when the gear lever 43 is detached from the closing plate 6, the closing plate 6 will not fall down immediately, but through the falling of the rope 51, the passenger can open the closing plate 6 by pulling the rope 51.

[0035] See also Figure 4 , Fig.10 As shown, the second locking mechanism includes a groove 61 arranged on the lower wall surface of the closing plate 6, a locking block 62 is movably arranged in the groove 61, a spring 63 is connected between the locking block 62 and the groove 61, and the upper side of the outer end of the locking block 62 is a first inclined surface 64, so that when the closing plate 6 is flipped downward to open, the first inclined surface 64 abuts against a side wall of the through hole 5 and can pass through, so that the closing plate 6 can be in a vertical state. When the closing plate 6 is in a vertical state, one side of the closing plate 6 abuts against one side of the sleeve through hole 5, and at the same time, the lower end of the locking block 62 abuts against the top plate 3, thereby locking the closing plate 6.

[0036] See also Figure 1 , Figure 3 As shown, the brake mechanism is provided with two groups, which are symmetrically arranged at the upper end of the top plate 3. The brake mechanism includes a guide seat 71 arranged on the top plate 3, and a moving rod 72 slides left and right in the guide seat 71. The inner end of the moving rod 72 is an arc structure, and a brake plate 73 is arranged at the outer end.

[0037] The transmission mechanism includes an extension seat 81 disposed on the hinged end of the closing plate 6 , and both sides of the extension seat 81 are provided with second inclined surfaces 82 capable of pushing the inner end of the moving rod 72 .

[0038] When the closing plate 6 drives the extension seat 81 to flip, the second inclined surfaces 82 on both sides of the extension seat 81 push against the inner end of the moving rod 72, and move the moving rod 72 outward, so that the brake plate 73 remains against the inner wall of the elevator shaft.

[0039] Furthermore, a rubber convex strip 91 is provided at the outer end of the brake plate 73. The provision of the rubber convex strip 91 can increase the friction force and enable the brake plate 73 to stably rest against the inner wall of the elevator shaft.

[0040] Furthermore, a tension spring 92 is connected between the guide seat 71 and the brake plate 73 , so that when the closing plate 6 is in the closed state, the brake plate 73 is kept disengaged from the elevator shaft, thereby ensuring the normal use of the car body 1 .

[0041] It should be understood that the terms "first", "second", etc. are used in this application to describe various information, but this information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying 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 this application.

[0042] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of this application is not limited to these descriptions. Any similarity or similarity with the method, structure, etc. of this application, or some technical deductions or replacements made based on the concept of this application should be considered as the protection scope of this application.

Claims

1. A car top safety escape device for an elevator car, comprising a car body (1), wherein the car body (1) comprises a rectangular car body (2) surrounded by a plurality of side panels, and a top plate (3) and a bottom plate (4) arranged at upper and lower ends of the rectangular car body (2), characterized in that: An escape hole (5) is provided on the top plate (3), a closing plate (6) is hingedly mounted on the escape hole (5), a retractable ladder assembly is provided at the outer end of the closing plate (6), a first locking mechanism, a second locking mechanism and a brake mechanism are also provided on the top plate (3), the first locking mechanism is used to lock the closing plate (6) in a horizontal state of closing the escape hole (5), the second locking mechanism is used to lock the closing plate (6) in a vertical state of opening the escape hole (5), the brake mechanism can contact the wall surface of the elevator shaft, and a transmission mechanism is also provided between the brake mechanism and the closing plate (6), and when the closing plate (6) is in the process of opening, the transmission mechanism can drive the brake mechanism to work; The first locking mechanism comprises a micro push rod motor (41) arranged on the top plate (3), the push rod of the micro push rod motor (41) is provided with a movable seat (42), the lower end of the movable seat (42) movably extends into the car body (1) and is connected to a shift rod (43), and one end of the shift rod (43) extends to the lower end of the closing plate (6); A rope (51) is arranged at one end of the closing plate (6) away from the hinged end, and a one-way swing limit plate (52) is arranged on the movable seat (42). Both ends of the rope (51) are connected to the closing plate (6), and the rope (51) is fixed to the movable seat (42) through the one-way swing limit plate (52). When the movable seat (42) drives the one-way swing limit plate (52) to move, the rope (51) can be separated from the one-way swing limit plate (52).

2. The elevator car top safety escape device according to claim 1, characterized in that: The telescopic ladder assembly comprises a first ladder (21) arranged on the outer end wall surface of the closing plate (6), and a second ladder (22) is slidably arranged on the first ladder (21) along the length direction of the closing plate (6).

3. The elevator car top safety escape device according to claim 2, characterized in that: A stopper (31) is symmetrically arranged on the outer end wall of the closing plate (6), a slide groove (32) is arranged inside the stopper (31), a limit groove (33) is arranged on the slide groove (32), a guide block (34) is arranged on the left and right sides of the second ladder (22), a limit block (36) is arranged on the guide block (34), the guide block (34) is slidably arranged in the slide groove (32), and the limit block (36) is slidably arranged in the limit groove (33).

4. The elevator car top safety escape device according to claim 1, characterized in that: The second locking mechanism comprises a groove (61) arranged on the lower wall surface of the closing plate (6), a locking block (62) is movably arranged in the groove (61), a spring (63) is connected between the locking block (62) and the groove (61), and the upper side of the outer end of the locking block (62) is a first inclined surface (64).

5. The elevator car top safety escape device according to claim 1, characterized in that: The brake mechanism is provided with two groups, which are symmetrically arranged at the upper end of the top plate (3) respectively. The brake mechanism comprises a guide seat (71) arranged on the top plate (3), a moving rod (72) sliding left and right in the guide seat (71), the inner end of the moving rod (72) is an arc structure, and the outer end is provided with a brake plate (73).

6. The elevator car top safety escape device according to claim 5, characterized in that: The transmission mechanism comprises an extension seat (81) arranged on the hinged end of the closing plate (6), and second inclined surfaces (82) capable of pushing the inner end of the moving rod (72) are arranged on both sides of the extension seat (81).

7. The elevator car top safety escape device according to claim 5, characterized in that: The outer end of the brake plate (73) is provided with a rubber convex strip (91).

8. The elevator car top safety escape device according to claim 5, characterized in that: A tension spring (92) is connected between the guide seat (71) and the brake plate (73).

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