Personnel fall-protection elevator pit protection device

Abstract

The application belongs to the elevator field, especially a personnel anti-falling elevator pit protection device. In view of the problem that the existing elevator cannot protect the personal safety of users through the protection assembly during use, is easy to cause secondary injury, and leads to low safety coefficient and poor protection performance, the following scheme is proposed. It comprises an elevator shaft, a through hole is arranged on one side of the elevator shaft, two sleeves are symmetrically arranged and slide through the inside of the through hole, an infrared sensor is arranged on the inner wall of one side of the elevator shaft, and the infrared sensor is located above the sleeve. In the application, the infrared sensor can monitor the falling of personnel, start the electric push rod, release the braking state of the sleeve, and quickly extend the net scoop. The net scoop mainly protects the personnel from falling from the first floor and absorbs the energy of high-level falling, avoids back and forth multiple rebounds, causes secondary injury to the personnel, and the safety air bag can protect the personnel again.

Description

TECHNICAL FIELD

[0001] The present application relates to the elevator technical field, especially personnel anti-falling elevator pit protection device. BACKGROUND

[0002] Elevator is a vertical lift with motor power, with box-shaped cabin, used for multi-storey building passengers or carrying goods. There are also step type, step plate on the continuous operation of the track, commonly known as escalator or moving sidewalk. Service to the specified floor fixed lifting equipment. Vertical lift has a car, running between at least two vertical rigid guide rail. The car size and structure form is convenient for passengers to enter and exit or load and unload goods. Traditionally, regardless of its driving mode, the elevator is used as a general term for vertical transport in buildings. According to the speed, it can be divided into low-speed elevator (1 meter / s below), fast elevator (1-2 meters / s) and high-speed elevator (2 meters / s above). Since the mid-19th century, hydraulic elevators have appeared and are still used in low-rise buildings.

[0003] 1、The existing elevator is easy to cause accidents in use, and only simple airbags can be used to protect the user's personal safety when the personnel falls, which cannot protect the user's personal safety through the protection assembly, is easy to cause secondary injury, and leads to low safety coefficient and poor protection performance of the device.

[0004] In view of the above problems, the personnel anti-falling elevator pit protection device is provided in the present application. SUMMARY

[0005] The personnel anti-falling elevator pit protection device is provided, which solves the problems in the prior art that the elevator is easy to cause accidents in use, and only simple airbags can be used to protect the user's personal safety when the personnel falls, which cannot protect the user's personal safety through the protection assembly, is easy to cause secondary injury, and leads to low safety coefficient and poor protection performance of the device.

[0006] The present application provides the following technical scheme:

[0007] A personnel anti-falling elevator pit protection device, comprising an elevator shaft, a through hole is formed in one side of the elevator shaft, two sleeves symmetrically arranged are slidably penetrated into the through hole, an infrared sensor is arranged on the inner wall of one side of the elevator shaft, the infrared sensor is located above the sleeves, and a same set of primary protection assemblies for realizing first heavy protection is arranged between the two sleeves;

[0008] A re-protection assembly for realizing second heavy protection is arranged on the bottom inner wall of the elevator shaft;

[0009] A third groove is formed in the inner wall of one side of the elevator shaft, and a fixing assembly for fixing the sleeve is arranged in the third groove.

[0010] In one possible design, the primary protection assembly includes two symmetrically arranged reinforcing rods fixedly connected between two sleeves, a common net bag is provided between the two reinforcing rods and the two sleeves, and two symmetrically arranged slots are provided at the bottom of one of the sleeves.

[0011] In one possible design, the re-protection assembly includes a metal frame fixedly connected to the inner wall of the bottom of the elevator shaft, a sponge pad is provided inside the metal frame, and an airbag is provided on the top of the metal frame.

[0012] In a possible design, the fixing assembly includes a horizontal plate slidably connected to the inner wall of the third groove, a fourth groove is provided on the inner wall of one side of the elevator shaft, the fourth groove is located directly below the third groove and is connected to the third groove, the inner wall of the fourth groove is fixedly connected to an electric push rod, the piston rod of the electric push rod is fixedly connected to the bottom of the horizontal plate, a second groove is provided on the inner walls on both sides of the third groove, the second groove is located directly below the first groove and the through hole, both ends of the horizontal plate are fixedly connected to a rectangular plate, the top of the rectangular plate is fixedly connected to a clamping rod, and the clamping rod is engaged with the clamping groove.

[0013] In a possible design, the inner wall of the sleeve is slidably connected to an inner rod, a same compression spring is fixedly connected between one inner wall of the sleeve and one end of the inner rod, and one end of the two inner rods is fixedly connected to the same machine base.

[0014] In one possible design, a reinforcement plate is fixedly connected to one side of the elevator shaft, and one end of the reinforcement plate is fixedly connected to the bottom of the machine base.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0016] In the present invention, when a person falls accidentally, the infrared sensor can detect the person's fall, and at this time the electric push rod can be activated, and the piston rod of the electric push rod drives the horizontal plate to move vertically downward, and the horizontal plate drives the rectangular plate and the clamping rod to move vertically downward, and the clamping rod is no longer engaged with the clamping groove, thereby releasing the braking state of the sleeve;

[0017] In the present invention, the sleeve pops out into the interior of the elevator shaft under the elastic force of the compression spring. At this time, the sleeve drives the reinforcing rod to move horizontally, and the reinforcing rod drives the net bag to move into the interior of the elevator shaft, mainly protecting people from falling from the first-floor door and absorbing the energy of falling from higher floors. The protection net has a certain strength and elastic absorption function, which can absorb the energy of falling people and avoid multiple rebounds back and forth, which may cause secondary injuries to people.

[0018] In the present invention, the electric push rod is started again, so that the piston rod of the electric push rod extends. At this time, the cross plate and the clamping rod move vertically upward, and the clamping rod is again engaged with the two clamping grooves, which can ensure the stability of the sleeve and prevent the sleeve from being retracted. At the same time, the provision of the airbag can again protect the personnel, and the sponge pad can again absorb the energy of the fall, reducing the damage to the personnel.

[0019] In the present invention, an infrared sensor is provided to monitor when a person falls, and the electric push rod is started to release the braking state of the sleeve, and the net bag is quickly extended, mainly to protect people from falling from the first-floor door and absorb the energy of falling from high-rise buildings. The protection net has a certain strength and elastic absorption function, which can absorb the energy of the falling person and avoid multiple rebounds back and forth, which may cause secondary injuries to the person. At the same time, the setting of the airbag can protect the person again, and the sponge pad can absorb the energy of the fall again to reduce the damage to the person. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an elevator pit protection device for preventing personnel from falling provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the explosion structure of an elevator shaft in a personnel fall protection device for an elevator pit provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the three-dimensional structure of a metal skeleton frame in an elevator pit protection device for preventing people from falling provided by an embodiment of the present invention;

[0023] Figure 4 A schematic structural diagram of a net bag and a sleeve in a personnel fall protection device for an elevator pit provided by an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of a sleeve in an elevator pit protection device for preventing personnel from falling provided by an embodiment of the present invention.

[0025] Reference numerals:

[0026] 1. Elevator shaft; 2. First groove; 3. Electric push rod; 4. Airbag; 5. Reinforcement plate; 6. Machine base; 7. Inner rod; 8. Net bag; 9. Sleeve; 10. Second groove; 11. Third groove; 12. Fourth groove; 13. Through hole; 14. Clamping rod; 15. Horizontal plate; 16. Rectangular plate; 17. Metal frame; 18. Sponge pad; 19. Clamping slot; 20. Reinforcement rod; 21. Compression spring; 22. Infrared sensor. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0028] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, 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 the embodiments of the present invention.

[0029] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0030] In the embodiments of the present invention, "and / or" is simply a description of the association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0031] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0032] Example 1

[0033] Reference Figures 1-5A personnel anti-falling elevator pit protection device, comprising an elevator shaft 1, one side of the elevator shaft 1 is provided with a through hole 13, two sleeves 9 symmetrically arranged are slidingly penetrated in the through hole 13, an infrared sensor 22 is arranged on the inner wall of one side of the elevator shaft 1, the infrared sensor 22 is located above the sleeves 9, a same set of primary protection assemblies for realizing first heavy protection is arranged between the two sleeves 9;

[0034] A re-protection assembly for realizing second heavy protection is arranged on the inner wall of the bottom of the elevator shaft 1;

[0035] A third groove 11 is formed in the inner wall of one side of the elevator shaft 1, and a fixing assembly for fixing the sleeve 9 is arranged in the third groove 11.

[0036] Embodiment 2

[0037] Reference Figures 1-5 A personnel anti-falling elevator pit protection device, comprising an elevator shaft 1, one side of the elevator shaft 1 is provided with a through hole 13, two sleeves 9 symmetrically arranged are slidingly penetrated in the through hole 13, an infrared sensor 22 is arranged on the inner wall of one side of the elevator shaft 1, the infrared sensor 22 is located above the sleeves 9, a same set of primary protection assemblies for realizing first heavy protection is arranged between the two sleeves 9, the primary protection assemblies comprise two reinforcing rods 20 symmetrically arranged and fixedly connected between the two sleeves 9, a same net 8 is arranged between the two reinforcing rods 20 and the two sleeves 9, two clamping grooves 19 symmetrically arranged are formed in the bottom of one of the sleeves 9, an inner rod 7 is slidingly connected to the inner wall of the sleeve 9, a compression spring 21 is fixedly connected between the inner wall of one side of the sleeve 9 and one end of the inner rod 7, a same machine base 6 is fixedly connected to one end of the two inner rods 7, a reinforcing plate 5 is fixedly connected to one side of the elevator shaft 1, one end of the reinforcing plate 5 is fixedly connected to the bottom of the machine base 6, at this time, the sleeve 9 is popped out to the inside of the elevator shaft 1 under the elastic force of the compression spring 21, at this time, the sleeve 9 drives the reinforcing rod 20 to move horizontally, the reinforcing rod 20 drives the net 8 to move to the inside of the elevator shaft 1, mainly protecting the personnel from falling from the first floor landing door and absorbing the energy of high-level falling, the protection net has a certain strength and elastic absorption function, can absorb the energy of the falling personnel, avoid back and forth multiple rebounds, and cause secondary injury to the personnel;

[0038] The inner wall of the bottom of the elevator shaft 1 is provided with a re-protection assembly for realizing the second heavy protection, the re-protection assembly comprises a metal skeleton frame 17 fixedly connected to the inner wall of the bottom of the elevator shaft 1, the inside of the metal skeleton frame 17 is provided with a sponge pad 18, and the top of the metal skeleton frame 17 is provided with a safety air bag 4; the electric push rod 3 is started again, so that the piston rod of the electric push rod 3 extends, at this time, the horizontal plate 15 and the clamping rod 14 move vertically upward, the clamping rod 14 is clamped with the two clamping grooves 19 again, the stability of the sleeve 9 can be ensured, the sleeve 9 is prevented from being retracted, and meanwhile, the safety air bag 4 can protect the personnel again, and the sponge pad 18 can absorb the falling energy again, so that the harm to the personnel is reduced;

[0039] The inner wall of one side of the elevator shaft 1 is provided with a third groove 11, the inside of the third groove 11 is provided with a fixing assembly for fixing the sleeve 9, the fixing assembly comprises a horizontal plate 15 slidably connected to the inner wall of the third groove 11, the inner wall of one side of the elevator shaft 1 is provided with a fourth groove 12, the fourth groove 12 is located below the third groove 11 and communicates with the third groove 11, the inner wall of the fourth groove 12 is fixedly connected with an electric push rod 3, the piston rod of the electric push rod 3 is fixedly connected with the bottom of the horizontal plate 15, the inner wall of the third groove 11 is provided with a second groove 10, the second groove 10 is located below the first groove 2 and the through hole 13, the two ends of the horizontal plate 15 are fixedly connected with rectangular plates 16, the top of the rectangular plate 16 is fixedly connected with a clamping rod 14, the clamping rod 14 is clamped with the clamping groove 19, when the personnel falls accidentally, the infrared sensor 22 can monitor the falling of the personnel, at this time, the electric push rod 3 can be started, the piston rod of the electric push rod 3 drives the horizontal plate 15 to move vertically downward, the horizontal plate 15 drives the rectangular plate 16 and the clamping rod 14 to move vertically downward, the clamping rod 14 is no longer clamped with the clamping groove 19, and thus the braking state of the sleeve 9 can be released.

[0040] However, as known to those skilled in the art, the working principle and wiring method of the infrared sensor 22 and the electric push rod 3 are common, which belong to conventional means or common knowledge, and will not be described here again, and those skilled in the art can make any selection according to the needs or convenience.

[0041] The working principle and use process of the technical scheme are as follows:

[0042] When the personnel falls accidentally, the infrared sensor 22 can monitor the falling of the personnel, at this time, the electric push rod 3 can be started, the piston rod of the electric push rod 3 drives the horizontal plate 15 to move vertically downward, the horizontal plate 15 drives the rectangular plate 16 and the clamping rod 14 to move vertically downward, the clamping rod 14 is no longer clamped with the clamping groove 19, and thus the braking state of the sleeve 9 can be released.

[0043] At this time, the sleeve 9 is ejected to the inside of the elevator shaft 1 under the elastic force of the compression spring 21, at this time, the sleeve 9 drives the reinforcing rod 20 to move transversely, the reinforcing rod 20 drives the net bag 8 to move to the inside of the elevator shaft 1, mainly protecting the personnel from falling from the first floor layer door and absorbing the energy of falling from high floors, the protective net has certain strength and elastic absorption function, can absorb the energy of the falling personnel, avoid back and forth multiple rebounds, cause secondary injury to the personnel;

[0044] The electric push rod 3 is started again, so that the piston rod of the electric push rod 3 is extended, at this time, the horizontal plate 15 and the clamping rod 14 move vertically upward, the clamping rod 14 is clamped with the two clamping grooves 19 again, the stability of the sleeve 9 can be ensured, the sleeve 9 is prevented from being retracted, at the same time, the setting of the safety air bag 4 can protect the personnel again, the sponge pad 18 can absorb the falling energy again, reduce the injury of the personnel.

[0045] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application; in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A personnel protection device for preventing people from falling into an elevator pit, characterized in that: include: An elevator shaft (1), wherein a through hole (13) is provided on one side of the elevator shaft (1), two symmetrically arranged sleeves (9) are slidably penetrated inside the through hole (13), an infrared sensor (22) is provided on an inner wall of one side of the elevator shaft (1), the infrared sensor (22) is located above the sleeve (9), and a same group of primary protection components for achieving a first level of protection is provided between the two sleeves (9); The bottom inner wall of the elevator shaft (1) is provided with a secondary protection component for achieving a second level of protection; A third groove (11) is provided on an inner wall of one side of the elevator shaft (1), and a fixing assembly for fixing the sleeve (9) is provided inside the third groove (11); The primary protection assembly comprises two symmetrically arranged reinforcing rods (20) fixedly connected between two sleeves (9), a common net bag (8) is provided between the two reinforcing rods (20) and the two sleeves (9), and two symmetrically arranged slots (19) are provided at the bottom of one of the sleeves (9); The fixing assembly includes a transverse plate (15) slidably connected to the inner wall of the third groove (11); a fourth groove (12) is provided on the inner wall of one side of the elevator shaft (1); the fourth groove (12) is located directly below the third groove (11) and is connected to the third groove (11); an electric push rod (3) is fixedly connected to the inner wall of the fourth groove (12); the piston rod of the electric push rod (3) is fixedly connected to the bottom of the transverse plate (15); second grooves (10) are provided on the inner walls of both sides of the third groove (11); the second grooves (10) are located directly below the first groove (2) and the through hole (13); both ends of the transverse plate (15) are fixedly connected to rectangular plates (16); the top of the rectangular plate (16) is fixedly connected to a clamping rod (14); the clamping rod (14) is engaged with the clamping groove (19); The inner wall of the sleeve (9) is slidably connected to an inner rod (7), a same compression spring (21) is fixedly connected between the inner wall of one side of the sleeve (9) and one end of the inner rod (7), and one end of the two inner rods (7) is fixedly connected to the same machine base (6).

2. The elevator pit protection device for preventing people from falling according to claim 1 is characterized in that: The re-protection assembly comprises a metal frame (17) fixedly connected to the inner wall of the bottom of the elevator shaft (1), a sponge pad (18) is provided inside the metal frame (17), and a safety airbag (4) is provided on the top of the metal frame (17).

3. The elevator pit protection device for preventing people from falling according to claim 1 is characterized in that: A reinforcing plate (5) is fixedly connected to one side of the elevator shaft (1), and one end of the reinforcing plate (5) is fixedly connected to the bottom of the machine base (6).

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