CN215666492U

CN215666492U - Car top guardrail with telescopic door

Info

Publication number: CN215666492U
Application number: CN202121938829.8U
Authority: CN
Inventors: 杨悦; 郭勇; 李键
Original assignee: Hitachi Elevator China Co Ltd
Current assignee: Hitachi Elevator China Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-01-28
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a telescopic door-opening type car top guardrail, which comprises a plurality of support rods arranged on a car top, wherein protective guardrails are arranged on the support rods, and gaps for people to enter and exit are formed in the side surfaces of the protective guardrails corresponding to car doors; the notch is provided with a telescopic guardrail, and when the telescopic guardrail is in an extension state, the telescopic guardrail intercepts the notch to prevent people from entering and exiting; and when the telescopic guardrail is in a contraction state, the gap is opened, and people can enter and exit through the gap. Wherein the extended state of the telescopic guardrail is maintained by the locking mechanism to ensure the structural stability of the telescopic guardrail when the telescopic guardrail intercepts the notch. The telescopic guardrail has low requirement on the space of the car top, does not need to rotate, cannot interfere with the parts of the car top, and is more convenient to use; the extension state of the telescopic guardrail is locked by the locking mechanism, so that the protection performance of the telescopic guardrail is ensured, and the life safety of workers is ensured.

Description

Car top guardrail with telescopic door

Technical Field

The utility model relates to the technical field of car top guardrails, in particular to a telescopic door-opening type car top guardrail.

Background

The car top guardrail is a protective facility arranged on the car top of the elevator, and can provide a protective effect for workers when the workers overhaul components in a hoistway on the car top; the common car top guardrail comprises a plurality of support rods arranged on the car top, wherein the support rods are provided with protective guardrails, and the side surfaces of the protective guardrails corresponding to the car doors are provided with gaps for people to enter and exit; generally speaking, most of the protective guardrails only protect three side faces, and a protective structure is not arranged on the side face close to the car door, so that the protective performance of the car top guardrail with three-side protection is not high enough; the car top guardrails with the four-side protection function can protect four sides, but the existing car top guardrails with the four-side protection function are generally car top guardrails with a rotary opening door type structure, namely, a rotary opening and closing guardrail is arranged at a gap, but other parts cannot exist in the rotary space of the guardrail, otherwise, interference can occur; therefore, the requirement on the space of the car roof is caused, and the inconvenience is caused.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a retractable door-opening type car top guardrail, which aims to solve the problem that the conventional rotary door-opening type car top guardrail is inconvenient to use at least to a certain extent.

The technical scheme of the utility model is realized as follows:

the utility model provides a flexible sedan-chair top guardrail of opening door, is including setting up many spinal branchs vaulting poles on the sedan-chair top, be equipped with the protection guardrail on the bracing piece, the protection guardrail is provided with the breach that supplies the people to pass in and out in the side that corresponds the sedan-chair door, still includes:

the telescopic guardrail is arranged at the notch in a telescopic way;

and the locking mechanism enables the telescopic guardrail to keep an extended state so as to intercept the telescopic guardrail at the gap.

As a further alternative of the telescopic door-opening type car top guardrail, the telescopic guardrail comprises a first fixing rod body and a second fixing rod body which are distributed on two sides of the notch, and the first fixing rod body and the second fixing rod body are fixed on the supporting rod or the protective guardrail; a telescopic rod body is arranged on the first fixed rod body; when the end part of the telescopic rod body is connected with the end part of the second fixed rod body, the telescopic guardrail is in an extension state.

As a further alternative of the telescopic door-opening type car top guardrail, a channel is formed in the first fixed rod body, and the telescopic rod body is movably arranged in the channel; the telescopic rod body moves along the axial direction of the channel, so that the telescopic action of the telescopic rod body is realized.

As a further alternative of the telescopic door-opening type car top guardrail, the locking mechanism comprises a first threaded hole arranged on the end part of the telescopic rod body, a second threaded hole arranged on the end part of the second fixed rod body and a threaded rod piece; when the end part of the telescopic rod body is connected with the end part of the second fixing rod body, the first threaded hole and the second threaded hole are arranged in a stacked mode, and the threaded rod piece penetrates through the first threaded hole and the second threaded hole.

As a further alternative of the telescopic door-opening type car top guardrail, the threaded rod is a butterfly bolt.

As a further alternative of the telescopic door-opening type car top guardrail, a safety device is arranged on the telescopic guardrail and comprises an electric switch plug connector and an electric switch main body; the safety device is communicated with the running circuit of the elevator; when the telescopic guardrail keeps the extension state, the electric switch plug is connected with the electric switch main body, and the elevator can run.

As a further alternative of the retractable door-opening type car top guardrail, one of the electric switch plug and the electric switch main body is arranged at the end part of the retractable rod body, and the other is arranged at the end part of the second fixed rod body.

As a further alternative of the telescopic door-opening type car top guardrail, a plurality of telescopic guardrails are arranged, and each telescopic guardrail is provided with a locking mechanism.

The utility model has the following beneficial effects: the telescopic guardrail is arranged at the gap of the protective guardrail, has low requirement on the car top space, does not need to rotate, cannot interfere with parts on the car top, and is more convenient to use; the extension state of the telescopic guardrail is locked by the locking mechanism, so that the protection performance of the telescopic guardrail is ensured, and the life safety of workers is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

FIG. 1 is a schematic structural view of a retractable door-opening type car top guardrail of the present invention;

fig. 2 is a schematic view of the telescopic balustrade in a top view;

fig. 3 is a schematic view of the telescopic balustrade in a front view;

fig. 4 is a schematic view of the locking mechanism in a front view.

In the figure: 1. a support bar; 2. protecting the guard rail; 3. a notch; 4. a telescopic guardrail; 41. a first fixed rod body; 42. a second fixed rod body; 43. a telescopic rod body; 5. a locking mechanism; 51. a first threaded hole; 52. a second threaded hole; 53. a threaded rod member; 6. a safety device; 61. an electrical switch plug; 62. an electrical switch body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments of the utility model.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do 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 thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-4, a telescopic door-opening type car top guardrail is shown, which comprises a plurality of support rods 1 arranged on the car top, wherein protective guardrails 2 are arranged on the support rods 1, and gaps 3 for people to enter and exit are arranged on the side surfaces of the protective guardrails 2 corresponding to car doors; the telescopic guardrail 4 is arranged at the notch 3, and when the telescopic guardrail 4 is in an extension state, the telescopic guardrail 4 intercepts the notch 3 to prevent people from entering and exiting; and when the telescopic guardrail 4 is in a contraction state, the gap 3 is opened, and people can enter and exit through the gap 3. Wherein the extension state of the telescopic guardrail 4 is maintained by the locking mechanism 5 to ensure the structural stability when the telescopic guardrail 4 intercepts the gap 3.

Therefore, the telescopic guardrail 4 has low requirement on the car top space, does not need to rotate, cannot interfere with parts on the car top and is more convenient to use; the extension state of the telescopic guardrail 4 is locked by the locking mechanism 5, so that the protection performance of the telescopic guardrail 4 is ensured, and the life safety of workers is ensured.

In the above embodiment, the telescopic guardrail 4 includes a first fixing rod 41 and a second fixing rod 42 distributed at two sides of the notch 3, and the first fixing rod 41 and the second fixing rod 42 are fixed on the support rod 1 or the protection guardrail 2; the first fixed rod body 41 is provided with a telescopic rod body 43; when the end of the telescopic rod 43 is connected to the end of the second fixed rod 42, the telescopic fence 4 is in an extended state. In other words, when the person needs to go in and out of the notch 3, the locking mechanism 5 releases the locking of the telescopic fence 4, so that the end of the telescopic rod 43 is far away from the end of the second fixed rod 42, that is, the telescopic rod 43 is contracted, and the person can go in and out of the space between the telescopic rod 43 and the second fixed rod 42.

Preferably, referring to fig. 2 to 4, the first fixing rod 41 has a channel (not labeled) therein, and the telescopic rod 43 is movably disposed in the channel; the telescopic rod 43 moves in the axial direction of the passage, thereby realizing the telescopic action of the telescopic rod 43.

In the above embodiment, in order to make the connection between the telescopic rod 43 and the second fixing rod 42 stable, referring to fig. 2-4, the locking mechanism 5 includes a first threaded hole 51 disposed at an end of the telescopic rod 43, a second threaded hole 52 disposed at an end of the second fixing rod 42, and a threaded rod 53; when the end of the telescopic rod 43 is connected to the end of the second fixing rod 42, the first threaded hole 51 and the second threaded hole 52 are stacked, and the threaded rod 53 is inserted into the first threaded hole 51 and the second threaded hole 52. In this way, when the threaded rod 53 is threaded into the first threaded hole 51 and the second threaded hole 52, the telescopic rod 43 and the second fixed rod 42 cannot be separated, so that the telescopic fence 4 can keep an extended state, and the notch 3 is intercepted; when the telescopic rod 43 needs to be moved in and out of the notch 3, the threaded rod 53 can be screwed, so that the threaded rod 53 is disengaged from the first threaded hole 51 and the second threaded hole 52, and the telescopic rod 43 can move along the channel and away from the second fixing rod 42. In order to improve the convenience of opening the door, the threaded rod 53 is a butterfly bolt, so that the threaded rod 53 can be screwed without a tool, and the locking mechanism 5 is conveniently controlled.

In the above embodiment, in order to further improve the safety of the worker during the maintenance, referring to fig. 2 and 3, a safety device 6 is arranged on the telescopic guardrail 4, and the safety device 6 includes an electrical switch plug 61 and an electrical switch main body 62; the safety device 6 is communicated with the running circuit of the elevator; specifically, one of the electrical switch plug 61 and the electrical switch body 62 is disposed at an end of the telescopic rod 43, and the other is disposed at an end of the second fixing rod 42. In brief, when the telescopic guardrail 4 is kept in an extended state, the electrical switch plug 61 is connected with the electrical switch main body 62, and the elevator can only run; when the telescopic rod 43 is separated from the second fixed rod 42, the notch 3 can enter and exit, and the electric switch plug 61 is separated from the electric switch main body 62, so that the elevator cannot run, and the safety of people in and out is ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a flexible sedan-chair top guardrail of opening door, is including setting up many spinal branchs vaulting poles on the sedan-chair top, be equipped with the protection guardrail on the bracing piece, the protection guardrail is provided with the breach that supplies people's business turn over in the side that corresponds the sedan-chair door, and its characterized in that still includes:

the telescopic guardrail is arranged at the notch in a telescopic way;

2. The retractable door-opening type car top guardrail according to claim 1, wherein the retractable guardrail comprises a first fixing rod body and a second fixing rod body which are distributed at two sides of the gap, and the first fixing rod body and the second fixing rod body are fixed on the supporting rod or the protective guardrail; a telescopic rod body is arranged on the first fixed rod body; when the end part of the telescopic rod body is connected with the end part of the second fixed rod body, the telescopic guardrail is in an extension state.

3. The retractable door-opening type car top guardrail as claimed in claim 2, wherein the first fixed rod body is provided with a channel, and the retractable rod body is movably arranged in the channel; the telescopic rod body moves along the axial direction of the channel, so that the telescopic action of the telescopic rod body is realized.

4. The retractable door-opening car top guardrail of claim 2, wherein the locking mechanism comprises a first threaded hole provided on the end of the retractable rod body, a second threaded hole provided on the end of the second fixed rod body, a threaded rod member; when the end part of the telescopic rod body is connected with the end part of the second fixing rod body, the first threaded hole and the second threaded hole are arranged in a stacked mode, and the threaded rod piece penetrates through the first threaded hole and the second threaded hole.

5. The retractable open-door car top guardrail of claim 4, wherein the threaded rod is a butterfly bolt.

6. The retractable door-opening type car top guardrail of claim 2, wherein a safety device is arranged on the retractable guardrail, and the safety device comprises an electric switch plug and an electric switch main body; the safety device is communicated with the running circuit of the elevator; when the telescopic guardrail keeps the extension state, the electric switch plug is connected with the electric switch main body, and the elevator can run.

7. The retractable open-door car top guardrail of claim 6, wherein one of the electrical switch plug and the electrical switch body is arranged at the end of the retractable rod body, and the other is arranged at the end of the second fixed rod body.

8. The retractable door-opening type car top guard according to claim 1, wherein a plurality of retractable guard rails are provided, and each retractable guard rail is provided with a locking mechanism.