CN221503188U

CN221503188U - Platform maintenance ladder

Info

Publication number: CN221503188U
Application number: CN202323319837.6U
Authority: CN
Inventors: 白玮; 于丽琴; 刘龙; 谢世超; 王刚; 贺永明; 贾彩玲; 陈会龙; 高博远; 张永强; 何春天; 高远; 张琳琳; 杜柳青
Original assignee: Pinggao Group Co Ltd; Henan Pinggao Electric Co Ltd
Current assignee: Pinggao Group Co Ltd; Henan Pinggao Electric Co Ltd
Priority date: 2023-12-06
Filing date: 2023-12-06
Publication date: 2024-08-09
Anticipated expiration: 2033-12-06

Abstract

The utility model relates to the technical field of maintenance ladders, in particular to a platform maintenance ladder. The working platform comprises a polygonal fixed platform and an expansion platform arranged on the polygonal fixed platform, wherein the ladder frame is arranged at one side position of the polygonal fixed platform, overhaul guardrails are arranged at other side positions of the polygonal fixed platform except for the side where the ladder frame is arranged, the overhaul guardrails corresponding to one side of the polygonal fixed platform are connected with the expansion platform and are hinged around a vertical axis, the side, adjacent to the expansion platform, of the polygonal fixed platform is hinged with the expansion guardrails, and when the expansion platform is used, the overturning guardrails and the expansion guardrails are respectively overturned to two sides of the expansion platform, so that the protection effect of the expansion platform is achieved, the safety of staff is guaranteed, the protection rail is not required to be independently installed on the expansion platform, and the structure is simple and easy to operate.

Description

Platform maintenance ladder

Technical Field

The utility model relates to the technical field of maintenance ladders, in particular to a platform maintenance ladder.

Background

When various devices such as a switch and the like in a conventional transformer substation have defects or faults, workers are required to overhaul and replace the devices on the platform overhaul ladder, and when an overhaul environment is complex, the workers are often required to constantly adjust an overhaul position for overhaul in an overhaul process. However, because the area of the working platform of the platform maintenance ladder is limited, the working personnel are required to continuously move the platform maintenance ladder to reach the designated maintenance position, and great inconvenience is caused to the working personnel. And during maintenance, the staff not only needs to pay attention to maintenance faults, but also needs to pay attention to the state of the staff by dispersing part of energy, so that the danger caused by large-scale movement of the staff on the maintenance platform is prevented, the operator is tired easily due to long-term distraction, and finally accidents are easily caused.

Chinese patent document CN215485831U discloses an aircraft engine maintenance work ladder, it includes scalable ladder frame and installs the work platform on scalable ladder frame, work platform includes first work platform and the second work platform of stack installation on first work platform, and work space is extensible, and the guardrail is still installed to first work platform both sides. When the worker needs to work on the second working platform, the second working platform extends out and is used for the worker to stand on to carry out maintenance work. However, the utility model has the following defects: the guardrails are arranged on the two sides of the first working platform, but no protective measures are taken on the second working platform, so that workers do not protect the second working platform during working, and potential safety hazards still exist; meanwhile, if the guard rail is independently installed on the second working platform, the structure is complex.

Disclosure of utility model

The utility model aims to provide a platform maintenance ladder so as to solve the problems that the operation of an expanded working platform in the prior art has potential safety hazards and the structure is complex due to the independent installation of a protective guard.

In order to solve the problems, the technical scheme of the platform maintenance ladder is as follows:

The utility model provides a platform overhauls ladder, includes the ladder frame and installs the work platform on the ladder frame, the work platform includes polygon fixed platform and disposes the extension platform on polygon fixed platform, and the ladder frame sets up in polygon fixed platform's a side position department, and other side positions department except that ladder frame place side of polygon fixed platform are equipped with the maintenance guardrail, its characterized in that, polygon fixed platform be connected with the maintenance guardrail that one side of extension platform corresponds is around vertical axis articulated upset guardrail, polygon fixed platform is last on with the one side of extending the platform adjacent articulates there is the extension guardrail, when using and extends the platform, upset guardrail with extend the guardrail and overturn respectively to the both sides of extending the platform.

Further, the expansion platform is hinged at the side edge of the polygonal fixed platform.

Further, a holding structure for holding the expansion platform in a vertical retracted and horizontal extended state is arranged between the expansion platform and the polygonal fixed platform.

Further, the polygonal fixed platform is a quadrangular fixed platform, and the expansion platform is configured on the quadrangular fixed platform at the side edge adjacent to the ladder frame.

Further, two expansion platforms are arranged, and the two expansion platforms are respectively arranged at two side edges adjacent to the ladder frame on the quadrangular fixed platform.

Further, the expansion guardrail is arranged at the side edge of the quadrangular fixed platform opposite to the ladder frame, and two ends of the expansion guardrail are detachably hinged to the quadrangular fixed platform.

Further, the expansion fence is hinged to the polygonal fixed platform about a vertical axis.

Further, the expansion guard rail is hinged to the outer side of the overhaul guard rail which is positioned at the same side of the polygonal fixed platform.

Further, the lower end of the ladder frame is provided with a roller.

The beneficial effects are that: the utility model improves on the basis of the maintenance working ladder in the prior art, the maintenance guardrail corresponding to one side, connected with the expansion platform, of the polygonal fixed platform on the platform maintenance ladder is a turnover guardrail hinged around a vertical axis, and the turnover guardrail can be turned to one side of the expansion platform to form maintenance protection on one side of the expansion platform; the polygonal fixed platform is hinged with the expansion guardrail on one side adjacent to the expansion platform, the expansion guardrail can be turned to the other side of the expansion platform to form maintenance protection on the other side of the expansion platform, operation protection can be formed on the expansion platform, and operation safety of staff is guaranteed.

According to the platform maintenance ladder, the original maintenance guardrail arranged on the polygonal fixed platform is used as the overturning guardrail, the expansion guardrail is additionally arranged on the polygonal fixed platform, when the expansion platform is used, the original overturning guardrail and the newly-added expansion guardrail are simply and respectively overturned to the two sides of the expansion platform, the operation protection is formed on the expansion platform, the operation safety of workers is guaranteed, the protective railing is not required to be independently arranged on the expansion platform, and the platform maintenance ladder is simple in structure and easy to operate.

Drawings

FIG. 1 is a front view of the platform access ladder of embodiment 1 of the present utility model in use;

FIG. 2 is a right side view of the use of example 1 of the platform access ladder of the present utility model;

FIG. 3 is a top view of the platform access ladder of the present utility model in an unexpanded state;

FIG. 4 is a top view of the platform access ladder of FIG. 2;

In the figure: 1. the device comprises a ladder frame, a quadrilateral fixed platform, an expanding platform, a turnover guardrail, an expanding guardrail, a fixed guardrail, a product to be overhauled, a vertical frame, a horizontal base and rollers.

Detailed Description

The features and capabilities of the present utility model are described in further detail below.

The maintenance ladder in the prior art as cited in the background art has no protective measures on the second working platform, and workers have no protection when the second working platform works, so that potential safety hazards exist; meanwhile, if the guard rail is independently installed on the second working platform, the structure is complex. Therefore, the utility model provides a platform maintenance ladder, which comprises a ladder frame and a working platform arranged on the ladder frame, wherein the working platform comprises a polygonal fixed platform and an expanding platform arranged on the polygonal fixed platform, and the polygonal fixed platform forms a fixed maintenance platform for a worker to carry out maintenance operation on the maintenance platform; the expansion platform is configured on the polygonal fixed platform and used for expanding the maintenance platform and increasing the maintenance space. The ladder frame sets up in polygon fixed platform's a side position department, and polygon fixed platform's other side positions department except that the side that the ladder frame was located are equipped with the maintenance guardrail for the staff forms the protection when polygon fixed platform operation. The maintenance guardrail corresponding to one side of the polygonal fixed platform connected with the expansion platform is a turnover guardrail hinged around a vertical axis, the side of the polygonal fixed platform adjacent to the expansion platform is hinged with the expansion guardrail, when the expansion platform is used, the original turnover guardrail is turned around the vertical axis to one side of the expansion platform to form the maintenance guardrail on one side of the expansion platform, the newly added expansion guardrail is turned to the other side of the expansion platform to form the maintenance guardrail on the other side of the expansion platform, and further maintenance protection is formed on two sides of the expansion platform, so that the operation safety of workers is guaranteed, and the maintenance guardrail is simple in structure and easy to operate.

Example 1 of a platform access ladder of the present utility model:

As shown in fig. 1, 2, 3 and 4, the platform maintenance ladder of this embodiment 1 includes a ladder frame 1 and a working platform mounted on the ladder frame 1, the working platform includes a polygonal fixed platform and an expanding platform 3 configured on the polygonal fixed platform, the ladder frame 1 is fixedly connected to a side position of the polygonal fixed platform, maintenance guardrails are provided at other side positions of the polygonal fixed platform except for a side of the ladder frame 1, the maintenance guardrails corresponding to the side of the polygonal fixed platform connected with the expanding platform 3 are turning guardrails 4 hinged around a vertical axis, and an expanding guardrail 5 is hinged to the side of the polygonal fixed platform adjacent to the expanding platform 3, when the expanding platform 3 is used, the turning guardrails 4 and the expanding guardrails 5 are turned to two sides of the expanding platform 3 respectively.

In this embodiment, the extension platform 3 is configured on the polygonal fixed platform, so as to facilitate installation and operation, and simplify the structure, and in this embodiment, it is preferable that the extension platform 3 is hinged at a side of the polygonal fixed platform along a horizontal axis. Through articulated connection, the vertical folding and horizontal unfolding of the expansion platform 3 are convenient, and the structure is simple and easy to operate. Of course, in other embodiments, the expansion platform 3 and the polygonal fixed platform may be fixedly connected by bolts, and the connection mode needs to form a through hole on the plane of the expansion platform 3 and the polygonal fixed platform, and fix the expansion platform 3 and the polygonal fixed platform by connecting bolts, so that the expansion platform 3 is horizontally fixed relative to the polygonal fixed platform, and the expansion platform is directly detached and placed on the fixed platform when not used.

Example 2 of a platform access ladder of the present utility model:

On the basis of the technical idea of the present utility model described above or on the basis of the specific embodiment of the present utility model described above, another embodiment is provided below.

In this embodiment, the expansion platform 3 is hinged to the side of the polygonal fixed platform along the horizontal axis, as shown in fig. 2, when the maintenance operation needs to be performed by using the expansion platform 3, the expansion platform 3 is horizontally unfolded and placed on the product 7 to be maintained, and the horizontal fixation of the expansion platform 3 is maintained. However, when the position and the height of the product 7 to be overhauled are not matched with the horizontally unfolded position and the height of the expansion platform 3, the expansion platform 3 cannot be fixedly placed on the product 7 to be overhauled to keep a horizontal state, so that workers cannot overhaul on the expansion platform 3.

Therefore, in this embodiment, preferably, a retaining mechanism for retaining the extension platform 3 in the vertical retracted and horizontal extended states is disposed between the extension platform 3 and the polygonal fixed platform, and the extension platform 3 can be horizontally extended at any time according to the position and the height of the product 7 to be overhauled, so that overhauling operation on the extension platform 3 is facilitated. The retaining structure in this embodiment includes a stop structure for maintaining the horizontally deployed state of the expansion platform 3 and a hooking structure for maintaining the vertically retracted state of the expansion platform 3. In the embodiment, the hooking structure is a hook, when the expanding platform 3 is not used, the expanding platform 3 keeps vertically retracted outside the overturning guardrail 4, the hook is arranged at the upper end of the expanding platform 3 and is used for hooking with the upper end of the overturning guardrail 4, and the vertically retracted state of the expanding platform 3 is kept, at the moment, the expanding platform 3 and the overturning guardrail 4 can jointly play a role of strengthening and protecting the polygonal fixed platform, and the structure is simple, so that the space is saved; the expansion platform and the polygon fixed platform are hinged through hinges connected to the upper side surfaces of the expansion platform 3, when the expansion platform 3 is used, the expansion platform 3 is horizontally unfolded, the edge side surfaces of the expansion platform 3 and the edge side surfaces of the polygon fixed platform, which are connected with the expansion platform 3, are attached and blocked, the expansion platform 3 and the polygon fixed platform are further kept at the same horizontal height, a new maintenance platform is formed, the transverse maintenance space is increased, meanwhile, the occurrence of dangers caused by excessive inclination of the expansion platform 3 is prevented, and the structure is simple and easy to operate.

In other embodiments, the stopping structure may be a fixed block, where the fixed block is fixed at a lower end surface position of a side edge of the polygonal fixed platform where the extended platform is located, and the fixed block portion extends along a horizontal extending direction of the extended platform 3, and when the extended platform 3 is extended to a horizontal position, the extended portion of the fixed block limits the extended platform 3 to continue to extend downwards, so as to limit the extended platform 3 to be at the same horizontal height as the polygonal fixed platform. In other embodiments, the hooking structure may be a rope, and the expanding platform 3 and the overturning guard rail 4 are fixed together through the rope, so as to keep the vertically retracted state of the expanding platform 3.

Example 3 of the platform access ladder of the present utility model:

In this embodiment, since the fixed platform is polygonal, the extension platform 3 can be configured on any side of the polygonal fixed platform, but when the extension platform 3 is configured at a side position opposite to the ladder frame 1, the transverse operation area cannot be increased, and the operation efficiency is low, so in this embodiment, the polygonal fixed platform is preferably a quadrangular fixed platform 2, and the platform structure is simple; the expanding platform 3 is arranged on the side edge of the quadrangular fixed platform 2 adjacent to the ladder frame 1, so that the transverse operation area is increased, workers can overhaul products without moving the overhaul ladder leftwards or rightwards, the operation is convenient, and the overhaul efficiency is improved.

As shown in fig. 1, the platform maintenance ladder further comprises a maintenance ladder body, the maintenance ladder body is composed of a vertical frame 8 and a horizontal base 9, the quadrangular fixed platform 2 is formed by the top plane of the vertical frame 8, and the upper end of the ladder frame 1 is fixedly connected with one end of the top plane of the vertical frame 8 to form a stable quadrangular fixed platform 2. Of course, in other embodiments, the polygonal fixed platform may be a pentagonal fixed platform, and the expansion platform 3 may be disposed on a side edge of the pentagonal fixed platform adjacent to the ladder frame 1, so that the transverse working surface may be increased during use.

Example 4 of a platform access ladder of the present utility model:

In this embodiment, the extension platform 3 may be configured on the quadrangular fixed platform 2 on the left side of the ladder frame 1, or may be configured on the quadrangular fixed platform 2 on the right side of the ladder frame 1, but if the maintenance product and the maintenance area are large, the worker needs to move leftwards or rightwards at any time during maintenance, if the extension platform 3 is configured on the left side or the right side of the ladder frame 1, at this time, the worker still needs to move the maintenance ladder to reach the maintenance position, which is inconvenient for operation, and the maintenance efficiency is still not high enough. Therefore, in this embodiment, preferably, there are two expansion platforms 3, and two expansion platforms 3 are respectively configured at two sides of the quadrangular fixed platform 2 adjacent to the ladder frame 1, so as to further increase the transverse operation area, when the overhauling product and the overhauling area are larger, the staff does not need to move the overhauling ladder left and right, and can randomly adjust the positions of the staff on the quadrangular fixed platform 2 and the expansion platforms 3 at two sides according to the overhauling position, thereby being convenient to operate and further improving the overhauling efficiency.

Example 5 of a platform access ladder of the present utility model:

In this embodiment, the expansion fence 5 can only turn to the expansion platform 3 on one side around the hinge axis of one end, and after both the expansion platforms 3 on two sides of the quadrangular fixed platform 2 adjacent to the ladder frame 1 are unfolded, the expansion fence 5 can only form protection on the expansion platform 3 on one side, and the expansion platform 3 on the other side is still not protected, so that potential safety hazards still exist when workers work. Therefore, in this embodiment, the expansion fence 5 is preferably disposed at the side opposite to the ladder frame 1, and both ends of the expansion fence are detachably hinged to the quadrangular fixed platform 2. The two ends of the expansion guardrail 5 are provided with rotating shafts, through holes for installing the rotating shafts are formed in positions, corresponding to the rotating shafts, on the quadrilateral fixed platforms 2, the two ends of the expansion guardrail 5 are detachably connected with the quadrilateral fixed platforms 2 through the rotating shafts, when the two side expansion platforms 3, adjacent to the ladder frame 1, on the quadrilateral fixed platforms 2 are unfolded, and when a worker works on one side expansion platform 3, the rotating shafts, far away from the side expansion platform 3, on the expansion guardrail 5 are detached, are turned over to the expansion platform 3 on the working side around the rotating shafts, adjacent to the side expansion platform 3, and are fixed through hooks, so that protection is formed; when a worker needs to move to the other side of the expansion platform 3 to operate, the rotating shaft on the expansion guardrail 5 far away from one side of the expansion platform 3 is detached, the expansion guardrail 5 is turned over to the expansion platform 3 on one side of the operation around the rotating shaft adjacent to the side of the expansion platform 3 and fixed through hooks, and the expansion guardrail 5 forms protection on the expansion platform 3 on the other side, so that the safety of the operation of the worker on the two sides of the expansion platform 3 can be ensured.

Of course, in other embodiments, pin holes are formed at bottoms of two ends of the expansion guard rail 5, pin holes are also formed on the quadrangular fixed platform 2 corresponding to the pin holes, the two ends of the expansion guard rail 5 and the quadrangular fixed platform 2 are detachably connected together through pin shafts, and the two ends of the expansion guard rail 5 are rotatable relative to the quadrangular fixed platform 2 through pin shafts. In the use process, the pin shaft at one end of the expansion guardrail 5 is detached, the expansion guardrail 5 is turned to one side of the expansion platform 3 by taking the pin shaft at the other end as the shaft, meanwhile, the pin holes are also formed in the position, corresponding to the pin hole position at the bottom of the expansion guardrail 5, of the expansion platform 3, and the expansion guardrail 5 and the expansion platform 3 are fixedly connected together through the pin shaft to form protection.

Example 6 of a platform access ladder of the present utility model:

In this embodiment, the expansion fence 5 can be hinged on the polygon fixed platform around the horizontal axis, but when the expansion fence 5 turns around the horizontal axis, a stop structure is required to be set, the expansion fence 5 is limited to turn around the horizontal axis by 90 degrees, so that the lower end face of the expansion fence 5 turned around is positioned at the same horizontal position with the expansion platform 3 to form protection.

Example 7 of a platform access ladder of the present utility model:

In this embodiment, in order to save installation space and further enhance the operation protection of the quadrangular fixed platform 2, it is preferable that the expansion fence 5 is hinged to the outside of the service fence at the same side as it is at the quadrangular fixed platform 2. As shown in fig. 3 and 4, the overhaul guardrail hinged with the expansion guardrail 5 at the same side of the quadrangular fixed platform 2 is a fixed guardrail 6, when the expansion guardrail 5 is not used, the expansion guardrail 5 and the fixed guardrail 6 form protection on the quadrangular fixed platform 2 together, so that the installation space of the expansion guardrail is saved, and meanwhile, the protection of the quadrangular fixed platform 2 is further enhanced; after the expansion guardrail 5 is rotated to the expansion platform 3, the expansion guardrail 5 forms protection on the expansion platform 3, and the fixed guardrail 6 forms protection on the quadrangular fixed platform 2, so that the protection effect of the expansion platform 3 and the quadrangular fixed platform 2 can be ensured at the same time, and the protection performance is enhanced. Of course, in other embodiments, the expansion fence 5 can also be hinged on the inner side of the service fence at the same side as it is on the quadrangular fixed platform 2, in which case the expansion fence 5 is turned over in the direction of the ladder frame 1 when turned over.

Example 8 of a platform access ladder of the present utility model:

The platform maintenance ladder of this embodiment 8 includes ladder frame 1 and the work platform of installing on ladder frame 1, work platform includes quadrilateral fixed platform 2 and disposes extension platform 3 on quadrilateral fixed platform 2, ladder frame 1 fixed connection is in the one side position department of quadrilateral fixed platform 2, other side positions department except for the side that ladder frame 1 is located of quadrilateral fixed platform 2 are equipped with the maintenance guardrail, extension platform 3 disposes on quadrilateral fixed platform 2 and is adjacent both sides limit department with ladder frame 1, the maintenance guardrail on the quadrilateral fixed platform 2 with be connected with extension platform 3 both sides be around vertical axis articulated upset guardrail 4, quadrilateral fixed platform 2 is articulated with extension guardrail 5 around vertical axis in the side department opposite to ladder frame 1, extension guardrail 5 sets up the outside of the maintenance guardrail of being in its same side department of quadrilateral fixed platform 2, and both ends all detachable articulates on quadrilateral fixed platform 2, when using extension platform 3, upset guardrail 4 and guardrail 5 overturn to the both sides of platform 3 respectively.

In this embodiment, in order to increase the working flexibility, it is preferable that the lower end of the ladder frame 1 is provided with rollers 10. As shown in fig. 1, the maintenance ladder body includes riser 8 and horizontal base 9, and ladder 1 lower extreme and horizontal base 9 fixed connection, and gyro wheel 10 is installed to the bottom of horizontal base 9, when the maintenance product, can be according to the position of waiting to examine the product 7, remove the platform maintenance ladder and fix the maintenance position at waiting to examine the product 7 through gyro wheel 10, increase work flexibility and convenience. Of course, in other embodiments, the lower end of the ladder frame 1 may not be provided with the roller 10, and the platform maintenance ladder may be manually moved to a position for maintenance of the product.

Through the description of the specific embodiment of the platform maintenance ladder, the platform maintenance ladder can be seen, a working platform is arranged on a ladder frame and comprises a polygonal fixed platform, and an expanding platform is arranged on the polygonal fixed platform, so that the maintenance platform can be expanded according to maintenance orientation, and the maintenance space is increased; the maintenance guardrail corresponding to one side of the polygonal fixed platform connected with the expansion platform is a turnover guardrail hinged around a vertical axis, the side, adjacent to the expansion platform, of the polygonal fixed platform is hinged around the vertical axis, when the expansion platform is used, the original turnover guardrail and the newly-added expansion guardrail are respectively turned to the two sides of the expansion platform, operation protection is formed on the expansion platform, operation safety of workers is guaranteed, a protective fence is not required to be independently installed on the expansion platform, and the polygonal fixed platform is simple in structure and easy to operate.

The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a platform overhauls ladder, includes the ladder frame and installs the work platform on the ladder frame, the work platform includes polygon fixed platform and disposes the extension platform on polygon fixed platform, and the ladder frame sets up in polygon fixed platform's a side position department, and other side positions department except that ladder frame place side of polygon fixed platform are equipped with the maintenance guardrail, its characterized in that, polygon fixed platform be connected with the maintenance guardrail that one side of extension platform corresponds is around vertical axis articulated upset guardrail, polygon fixed platform is last on with the one side of extending the platform adjacent articulates there is the extension guardrail, when using and extends the platform, upset guardrail with extend the guardrail and overturn respectively to the both sides of extending the platform.

2. The platform access ladder of claim 1, wherein the extension platform is hinged at a side of the polygonal fixed platform.

3. The platform access ladder of claim 2, wherein a retaining structure is provided between the extended platform and the polygonal fixed platform to retain the extended platform in the vertically stowed and horizontally deployed states.

4. The platform access ladder of claim 1, wherein the polygonal fixed platform is a quadrilateral fixed platform, and the expanding platform is disposed on the quadrilateral fixed platform at a side adjacent to the ladder frame.

5. The platform access ladder of claim 4, wherein there are two expansion platforms, and the two expansion platforms are respectively disposed on the quadrilateral fixed platform at two sides adjacent to the ladder frame.

6. The platform access ladder of claim 5, wherein the expansion barrier is disposed on a side of the quadrilateral fixed platform opposite the ladder frame and both ends are detachably hinged to the quadrilateral fixed platform.

7. The platform access ladder of any one of claims 1-6, wherein the expansion fence is hinged to the polygonal fixed platform about a vertical axis.

8. The platform access ladder of any one of claims 1-6, wherein the expansion barrier is hinged outside of the access barrier at the same side of the polygonal fixed platform.

9. The platform access ladder of any one of claims 1-6, wherein the lower end of the ladder frame is provided with rollers.