CN204591096U - A kind of high-altitude maintenance operating ladder fixed structure - Google Patents

Abstract

The utility model discloses a fixing structure for an aerial inspection and maintenance operation ladder. The ladder (1) is composed of vertical rods on both sides and a horizontal rod arranged between the two vertical rods as a ladder. The lower arc-shaped connecting section (11), at the lower end of the arc-shaped connecting section (11) is connected with a straight plug-in section (12) with a socket hole, and the fixing frame (2) is detachable through a clamping device (23) It is fixed on the edge of the upper cover of the transformer to be overhauled, and the fixing frame (2) is provided with a plug-in column (22) that is matched and connected with the plug-in hole. The fixed structure of the high-altitude maintenance work ladder of the utility model has many advantages such as safety, applicability, simple and reliable fixing, and convenient carrying, which greatly improves the safety of the maintenance personnel during the maintenance process on the top of the transformer, and has strong practicability.

Description

A fixed structure for overhead maintenance work ladder

technical field

The utility model belongs to the field of high-altitude maintenance, more specifically, the utility model relates to a high-altitude maintenance work ladder fixing structure used for transformer maintenance.

Background technique

The "Safety Regulations" clearly requires that "any operation at a height of 2 meters or more above the falling height reference plane shall be regarded as high-altitude operation." The height of the top of the ordinary power transformer from the ground is about two meters, which has reached the standard for high-altitude operations. Usually, it is necessary to go up to the top of the transformer to perform some work such as tightening bolts, main transformer experiments, and eliminating defects. It is an overhead line, the ladder is not fixed well, the stability is poor, and there is no place for the maintenance personnel to bind the safety belt safety rope when they are working, causing the maintenance personnel to lose safety protection when working at high places, and there is a danger of falling at any time if they are not careful. , pose a serious threat to personal safety.

Utility model content

The utility model provides a simple structure, convenient and stable fixed ladder, and a high-altitude maintenance work ladder fixing structure that ensures the safety of maintenance personnel.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the fixed structure of the high-altitude maintenance work ladder is provided. The upper ends of the two vertical poles are provided with downward arc-shaped connecting sections, and the lower ends of the arc-shaped connecting sections are connected with direct plug-in sections with insertion holes, and the fixing frame is detachably fixed to the transformer to be repaired by a clamping device. On the edge of the upper cover, the fixed frame is provided with an insertion column (22) that is matched and connected with the insertion hole.

In order to make the above technical solution more perfect, the utility model also provides the following further preferred technical solutions to obtain satisfactory practical effects:

The fixing frame includes a U-shaped structural support placed sideways, and the clamping device is arranged on the side arm of the support.

A vertical threaded guide sleeve is provided on the extended side arm of the support, and the clamping device includes a screw rod that can be adjusted up and down along the threaded guide sleeve.

An anti-slip pad is provided at one end of the screw rod facing the inner side of the U-shaped bracket, and an adjusting disc for rotating and controlling the movement of the screw rod is provided at the other end.

The anti-skid pad is a rubber pad.

There are two fixed mounts, and the two fixed mounts are connected by connecting ropes.

The horizontal straightening length of the connecting rope ensures that the center-to-center distance between the two plug-in posts is the same as the center-to-center distance between the two plug-in holes.

The lowermost ends of the two vertical poles of the ladder are provided with insertion holes matched with the insertion posts.

A pallet supported on the transformer body near the lower end of the ladder.

One side of the tray is rotatably hinged on the pole, and the other side is supported by a stay rope connected to the ladder to limit the downward rotation of the tray to a dead point.

Compared with the prior art, the utility model has the following advantages: the ladder is connected with the fixed frame fixed on the transformer to ensure stable fixing of the ladder, which is safe and reliable; the detachable fixed frame realizes free movement within a sufficient working range; The clamping device with adjustable clamping is suitable for clamping the upper cover of the transformer with different thicknesses. It is easy to use and fixed firmly; the lower end of the ladder is plugged and fixed on the fixed frame, and the maintenance personnel can hang the safety belt quickly on the ladder as a support. point, using this fixed structure can effectively solve the safety hazard problem of preventing high falls during the transformer maintenance process that has plagued maintenance personnel for many years; the fixed structure of the high-altitude maintenance work ladder has many advantages such as safety, applicability, simple and reliable fixing, and convenient portability. The safety of the maintenance personnel in the maintenance process of the transformer top is greatly improved, and the utility model has strong practicability.

Description of drawings

The following is a brief description of the content expressed in the drawings of this manual and the marks in the drawings:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of the utility model fixed frame;

Marked among the figure: 1, ladder, 11, arc-shaped connection section, 12, straight-in connection section, 121, support hole, 2, fixed frame, 21, bracket, 211, thread guide sleeve, 212, clip block, 22, Plug post, 23, clamping device, 231, adjusting disc, 232, screw rod, 233, anti-slip pad, 3, pallet, 4, connecting rope.

Detailed ways

The specific implementation of the present utility model will be described in further detail below by describing the embodiments with reference to the accompanying drawings.

The fixed structure of the utility model high-altitude maintenance operation ladder, as shown in Figure 1, the ladder 1 is composed of uprights on both sides and a horizontal bar arranged between the two uprights as a ladder, and the upper ends of the two uprights are provided with downward The arc-shaped connecting section 11 is connected to the lower end of the arc-shaped connecting section 11 with the straight-inserting section 12 having a plug-in hole, and the fixing frame 2 is provided with a plug-in column 22 that is mated with the plug-in hole on the straight-plugging section 12 , and the fixing frame 2 is detachably fixed on the edge of the upper cover of the transformer to be overhauled through the clamping device 23 . With this fixed structure, the installation and fixing of the ladder is reliable, and the safety is high, which is especially suitable for the special situation of high-altitude inspection and maintenance of transformers.

In the utility model, an embodiment is provided. In order to facilitate the fixed connection of the fixed frame, the structure of the fixed frame 2 is shown in FIG. The clamping device 23 and the bracket 21 are also provided with a protruding plug post 22 that fits into the plug hole. The support 21 is a U-shaped frame placed on the side, and the clamping device 23 is located on the side arm of the support 21. The side arm end of the U-shaped frame is provided with a threaded guide sleeve 211, and the screw rod 232 can freely adjust the height along the guide sleeve 211. U A planar clamping block 212 is provided on the other side arm of the frame to increase the clamping surface. The clamping device 23 includes a screw rod 232 that cooperates with the threaded guide sleeve 211 to adjust up and down, and the distance between the clamping block 212 and the clamping block 212 can be controlled by adjusting the screw rod 232 . The fixing of the fixing frame 2 is realized by freely adjusting the clamping device 23 to clamp the edges of transformer top covers with different thicknesses. In order to play an anti-skid effect, an anti-slip pad 233 can be provided at one end of the screw rod 232 placed inside the U-shaped frame, and an adjusting disc 231 for controlling the movement of the screw rod 232 can be provided at the other end, so that the screw rod 232 can be adjusted and manipulated. Preferably, the anti-skid pad 233 is a rubber pad. Clamp the U-shaped bracket 21 on the edge of the transformer, adjust the screw rod 232 so that it is clamped and fixed up and down with the clamp block 212, and after fixing, insert the insertion hole 113 at the upper end of the ladder on the insertion column 22 to play a fixed role . Unclamping the fixing frame 2 can move the position conveniently, and is applicable to various occasions where it is difficult to place a fixed ladder. After use, the screw rod 232 of the clamping device 23 can be loosened.

There are two fixing brackets 2 corresponding to the two insertion holes on the two direct insertion sections 12 respectively. The two fixed frames 2 are connected by a connecting rope 4, so as to avoid loss when placing them at ordinary times. The horizontal straightening length of the connecting rope 4 ensures that the center distance between the two plug-in posts 22 is the same as the center distance between the two plug-in holes. After one fixed frame 2 is arbitrarily fixed, the straightened connecting rope 4 is another fixed frame. 2. The required fixed position is convenient for installation and connection, and avoids the problem that it is difficult to correspond to the plug-in due to the deviation of the fixed position.

The lower ends of the two uprights of the ladder 1 are all provided with insertion holes that cooperate with the insertion posts 22 . When in use, after the maintenance personnel use the work ladder to climb to the top of the transformer, they can turn around and lift the ladder up, and then insert the plug holes at the bottom of the ladder 1 into the plug posts on the original two fixing frames 2 22, after being fixed, it can be used by the overhaul personnel to fix the safety belt, and can be hung on the corresponding ladder cross bar according to the work site situation to adjust. The maintenance personnel hang the safety belt quickly on the ladder as a support point. Using this set of devices can effectively solve the safety hazard of preventing high falls during the transformer maintenance process that has troubled the maintenance personnel for many years, and ensure the safety of the maintenance personnel.

In order to reduce the weight of the ladder and make it easy to carry and use, preferably the uprights and cross bars constituting the ladder 1 are hollow tubes, which are convenient for insertion, installation and fixation. The selection of the hollow tube is designed according to the bearing capacity of the maintenance personnel after a possible high fall, and a certain margin is left to ensure safety.

Considering that the aerial work maintenance ladder is mostly used in substations, the preferred ladder frame 1 is made of insulating material or a layer of insulating tape is wound and covered on the edge of the ladder 1 . Wrap a strikingly colored red tape on the topmost cross bar to serve as a reminder to prevent stepping into the air.

The tray 3 supported on the transformer body near the lower end of the ladder 1 . The tray 3 is a rotatable and foldable structure. One side of the tray 3 is rotatably hinged on the vertical rod, and the other side is supported by a stay rope connected to the ladder 1 to limit the downward rotation of the tray 3 to a dead point. When maintenance personnel use this climbing ladder to climb to the top cover of the transformer, they can pick up the lower end of the ladder and fix it on the fixed frame, open the tray 3, and fix it with pull ropes on both sides of the tray 3 to ensure its relative position to the ladder 1 Vertically or slightly inclined downward at a certain angle, the maintenance tools are placed in it, which is convenient to take and prevents forgetting to take it away after maintenance, so that the work is completed, the materials are clean, and the site is clean. It can be rotated upwards and put away when not in use at ordinary times. The size of the tray 3 is set to be just enough to be put away in the frame surrounded by the ladder poles and crossbars, without taking up space or affecting the normal use of other functions. At the same time, when climbing a ladder, the tray 3 can also play a certain supporting role. Pull out the tray 3 so that one side of it is pushed against the transformer body. The upper end of the ladder 1 is fixed by two fixing brackets 2, and then the supporting role of the auxiliary tray 3 , forming the stability of the triangular support. The purpose of this is to prevent the ladder from swinging back and forth when climbing the transformer body, so as to increase its own stability. A non-slip rubber gasket can be installed at the contact between one end of the tray and the transformer to further enhance the stability and improve the safety factor of the climber.

The fixed structure of the utility model high-altitude maintenance operation ladder, the ladder 1 is connected with the fixed frame 2 fixed on the transformer, so as to ensure the stable fixing of the ladder 1, which is safe and reliable; the detachable fixed frame 2 realizes free movement in a sufficient working range; The clamping device 23 with adjustable clamping is suitable for clamping the upper covers of transformers with different thicknesses. It is easy to use and fixed firmly; The safety belt is quickly bolted and hung on the ladder as a support point. Using this fixed structure can effectively solve the hidden safety problem of preventing high falls during the transformer maintenance process that has troubled maintenance personnel for many years; the fixed structure of the high-altitude maintenance operation ladder has safety, applicability, Simple and reliable fixing, easy to carry and many other advantages greatly improve the safety of maintenance personnel during the maintenance process on the top of the transformer, and have strong practicability.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned method, as long as various insubstantial improvements or direct improvements are made by adopting the method concept and technical solutions of the utility model. Those applied to other occasions are all within the protection scope of the present utility model.

Claims (10)

1. a high-altitude maintenance operating ladder fixed structure, this ladder (1) is made up of the vertical rod of both sides and the cross bar be located at as ladder between two vertical rods, it is characterized in that: described two vertical rod upper ends are equipped with downward arc linkage section (11), the straight inserting section (12) with spliced eye is connected in the lower end of described arc linkage section (11), fixed mount (2) need overhaul transformer upper cover edge by dismountable being fixed on of clamping device (23), and described fixed mount (2) is provided with the inserting column (22) be connected with described spliced eye.

2. according to high-altitude maintenance operating ladder fixed structure according to claim 1, it is characterized in that: described fixed mount (2) comprises the U-shaped structure stand (21) of being sidelong, and described clamping device (23) is located on the side arm of support (21).

3. according to high-altitude maintenance operating ladder fixed structure according to claim 2, it is characterized in that: described support (21) stretches out side arm and is provided with vertical threaded guide sleeve (211), described clamping device (23) comprises can along the screw rod (232) of described threaded guide sleeve (211) up-down adjustment.

4. according to high-altitude maintenance operating ladder fixed structure according to claim 3, it is characterized in that: be provided with slipmat (233) at described screw rod (232) towards the one end inside described U-shaped support (21), the other end is provided with the adjustment disk (231) rotating and control described screw rod (232) and move.

5. according to high-altitude maintenance operating ladder fixed structure according to claim 4, it is characterized in that: described slipmat (233) is rubber pad.

6. according to the high-altitude maintenance operating ladder fixed structure described in any one of claim 1 to 5, it is characterized in that: described fixed mount (2) is provided with two, connected by connection cord (4) between described two fixed mounts (2).

7. according to high-altitude maintenance operating ladder fixed structure according to claim 6, it is characterized in that: the stretching length of described connection cord (4) level ensures that the center to center distance between two inserting columns (22) is identical with the center to center distance between described two spliced eyes.

8., according to high-altitude maintenance operating ladder fixed structure according to claim 7, it is characterized in that: this ladder (1) two vertical rod described be equipped with the spliced eye coordinated with described inserting column (22) bottom.

9. according to high-altitude maintenance operating ladder fixed structure according to claim 8, it is characterized in that: be supported in the pallet (3) on described transformer body near described ladder (1) lower end.

10. according to high-altitude maintenance operating ladder fixed structure according to claim 9, it is characterized in that: described pallet (3) is rotating to be articulated with in described vertical rod, another side supports the described pallet of restriction (3) by the stay cord be connected on described ladder (1) and rotates stop.