CN212428553U - Transformer is with ladder of taking safety cage - Google Patents

Abstract

The utility model belongs to the technical field of transformer installation and overhaul appurtenance and specifically relates to a transformer is with ladder of taking safety protection cage, including cat ladder, handrail, first cage, second protection cage and safety protection door, wherein the cat ladder upper end is equipped with the detachable handrail, and cat ladder upper end one side is equipped with the first cage that protects of detachable, it protects the cage to be equipped with the detachable second on the cat ladder, the cat ladder lower extreme is equipped with safety protection door, just safety protection door is equipped with the lock nose that lock and installation five prevent the lock, be equipped with the earth connection in the safety protection door. The utility model discloses can carry out the combination of cat ladder, handrail and cage as required highly, it is nimble convenient to use to the security performance has been improved.

Description

Transformer is with ladder of taking safety cage

Technical Field

The utility model relates to a transformer installation overhauls appurtenance, specifically speaking are ladders of taking safety protection cage for transformer.

Background

The transformer ladder is an indispensable tool for installing and overhauling the transformer, and whether the transformer ladder is convenient to use, safe and reliable is the basic use requirement. According to the requirements of GB4053.1-2009-4, the structural design of the ladder for the transformer is under the premise of meeting the product performance, safety factors of the product in the conditions of production, storage, transportation, use and the like must be considered, and appropriate protection, movement, lifting and other structural measures are matched, however, as shown in fig. 8, the ladder protection cage of the transformer in the prior art is usually of an integrated structure and is fixedly arranged on a ladder stand, or is not provided with a protection cage, the ladder protection cage is lack of safety measures, and cannot be timely adjusted according to different working conditions, the field transportation and installation are inconvenient, in addition, the ladder of the transformer in the prior art is also lack of protection measures such as grounding and the like, and the safety needs to be improved urge.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transformer is with ladder of taking safety cage, can carry out the combination of cat ladder, handrail and cage as required highly, and it is nimble convenient to use to the security performance has been improved.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a transformer is with ladder of taking safety protection cage, protects cage and safety protection door including cat ladder, handrail, first protection cage, second, wherein the cat ladder upper end is equipped with the detachable handrail, and cat ladder upper end one side is equipped with the first cage that protects of detachable, be equipped with the detachable second on the cat ladder and protect the cage, the cat ladder lower extreme is equipped with the safety protection door, just the safety protection door is equipped with the lock nose of lock and five anti-locks of installation, be equipped with the earth connection in the safety protection door.

The first protection cage comprises a first horizontal cage frame and first connecting rods, wherein two sides of the opening end of the first horizontal cage frame are detachably mounted on the vertical rods on two sides of the upper end of the ladder stand, and the first horizontal cage frames are connected through the vertical first connecting rods.

The second protection cage comprises a second horizontal cage frame and second connecting rods, two sides of an opening end of the second horizontal cage frame are detachably mounted on the horizontal pedal beam in the middle of the ladder stand, and the second horizontal cage frames are connected through the vertical second connecting rods.

The safety protection door is characterized in that a door lock and a lock nose are arranged on the opening side of the safety protection door, and the grounding wire is arranged on the back of the safety protection door and leads out for grounding.

The safety protection door is provided with a warning mark.

The utility model discloses an advantage does with positive effect:

1. the utility model discloses a handrail is detachable construction with protecting the cage, consequently the utility model discloses can carry out cat ladder, handrail and the combination that protects the cage as required highly, compare the cage structure that protects of integral type among the prior art, the utility model discloses it is nimble more convenient to use to also convenient transportation and field installation.

2. The utility model discloses utilize the handrail and protect the cage and prevent that personnel from falling, have the safety protection of earth connection in the safety protection door when the operation is overhauld in addition, can also satisfy the long-range safety monitoring function of prevention maloperation through the switch setting of five anti-lock when the transformer operation, greatly promoted the security performance.

Drawings

Figure 1 is a schematic structural diagram of the present invention,

figure 2 is a right side view of the invention of figure 1,

figure 3 is a schematic view of the handrail and the first cage of figure 1,

figure 4 is a top view of the first cage of figure 3,

figure 5 is a top view of the second cage of figure 1,

figure 6 is an enlarged view of the safety shield door of figure 2,

figure 7 is a schematic view of the position of the locking nose of the five-prevention lock in figure 6,

fig. 8 is a schematic view of a ladder structure of a transformer in the prior art.

Wherein, 1 is the cat ladder, 2 is the handrail, 3 is the second and protects the cage, 301 is the horizontal cage frame of second, 302 is the second connecting rod, 4 is the safety protection door, 5 is the lock, 6 is the earth connection, 7 is the first cage that protects, 701 is the horizontal cage frame of first, 702 is the first connecting rod, 8 is five locks of preventing, 801 is the lock nose.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-7, the utility model discloses a cat ladder 1, handrail 2, first cage 7, second protect cage 3 and safety protection door 4, wherein cat ladder 1 upper end is equipped with detachable handrail 2, and cat ladder 1 upper end one side is equipped with the first cage 7 that protects of detachable, cat ladder 1 is last to be equipped with detachable second and protects cage 3, cat ladder 1 lower extreme is equipped with safety protection door 4, just safety protection door 4 is equipped with lock 5 and the lock nose 801 of installing five anti-lock 8, and be equipped with earth connection 6 in the safety protection door 4.

As shown in fig. 1 and fig. 3 to 4, the first protective cage 7 includes a first horizontal cage frame 701 and first connecting rods 702, an open end of the first horizontal cage frame 701 is detachably mounted on vertical rods on both sides of an upper end of the ladder stand 1, and the first horizontal cage frames 701 are connected by a plurality of vertical first connecting rods 702. In this embodiment, the open end of the first horizontal cage frame 701 is installed on the vertical rod of the ladder stand 1 by a bolt fastening method.

As shown in fig. 1 and 5, the second cage 3 includes a second horizontal cage 301 and a second connecting rod 302, an open end of the second horizontal cage 301 is detachably mounted on the pedal beam horizontally in the middle of the ladder 1, and the second horizontal cages 301 are connected by a plurality of vertical second connecting rods 302. In this embodiment, the open end of the second horizontal cage 301 is also mounted on the pedal beam of the ladder stand 1 by means of a bolt.

In this embodiment, the cage frames and the connecting rods of the first and second protective cages 7 and 3 are all made of cold-drawn seamless steel tubes, and the maximum gap formed between the horizontal cage hoop and the connecting rod should be less than or equal to 0.4m²。

As shown in fig. 6, a rotating shaft is arranged on one side of the safety protection door 4 and is hinged to the ladder stand 1, the other side of the safety protection door 4 can be opened in a rotating mode, a door lock 5 is arranged on the opening side of the safety protection door 4, in the embodiment, the door lock 5 is a built-in lock which is a known technology in the field and is a commercially available product, in addition, as shown in fig. 7, a lock nose 801 capable of being provided with a five-prevention lock 8 is reserved on the opening side of the safety protection door 4, a remote safety monitoring function for preventing misoperation can be achieved through the switch setting of the five-prevention lock 8, higher safety is provided, the five-prevention lock 8 is a known technology in the field and is a commercially available product, a warning mark is arranged on the safety protection door 4, when the transformer operates, the operation and maintenance personnel can be warned not to climb, a grounding wire 6 is.

The ladder stand 1 and the handrail 2 are also in a detachable structure, such as a bolt mounting mode.

The utility model discloses a theory of operation does:

as shown in fig. 8, the protective cage of the transformer ladder in the prior art is generally of an integrated structure and is fixedly arranged on the ladder stand, or the transformer ladder is not provided with the protective cage, so that the transformer ladder cannot be adjusted in time according to different working conditions, is inconvenient to transport and install on site, and lacks protective measures such as grounding and the like.

The utility model discloses can dispose cat ladder 1, handrail 2 and protect the cage according to the use altitude requirement, make the ladder accomplish simple structure, safe practical, wherein cat ladder 1 requires to adopt can dismantle and can not dismantle two kinds of structural style according to the transportation outer limit, wherein detachable construction can adopt each section cat ladder 1 bolt to dress forms such as connection, and handrail 2, first protect cage 7 and second and protect cage 3 and be detachable construction.

The ladder of the embodiment is divided into 3 grades according to the using height, when the using height is less than 1500mm, the ladder is only provided with the ladder stand 1, when the using height is more than 1500mm and less than 3000mm, the ladder stand 1 and the handrail 2 are provided with the ladder, and when the using height is more than 3000mm, the ladder is provided with the ladder stand 1, the handrail 2, the first protection cage 7 and the second protection cage 3.

The utility model discloses still dispose safety protection door 4 and earth connection 6, wherein the lock 5 of safety protection door 4 is built-in lock 6, and safety protection door 4 reserves five lock 8's lock noses 801, safety protection door 4 adopts built-in lock and five to prevent 8 double-lock structures of lock, and wherein the built-in lock is basic configuration, and the lock nose 801 of reserving can install five additional according to the field operation needs and prevent lock 8 to can satisfy the long-range safety monitoring function of prevention maloperation through the switch setting of five lock 8, earth connection 6 in safety protection door 4 plays the ground protection effect, is equipped with the warning sign of "high-pressure danger forbids climbing" on safety protection door 4 in addition.

Claims (5)

1. The utility model provides a transformer is with ladder of taking safety cage which characterized in that: including cat ladder (1), handrail (2), first cage (7), second cage (3) and safety protection door (4), wherein cat ladder (1) upper end is equipped with detachable handrail (2), and cat ladder (1) upper end one side is equipped with the first cage (7) that protects of detachable, be equipped with detachable second cage (3) on cat ladder (1), cat ladder (1) lower extreme is equipped with safety protection door (4), just safety protection door (4) are equipped with lock nose (801) of lock (8) are prevented with the installation five, be equipped with earth connection (6) in safety protection door (4).

2. The ladder with the safety cage for the transformer as claimed in claim 1, wherein: the first protection cage (7) comprises a first horizontal cage frame (701) and first connecting rods (702), two sides of the opening end of the first horizontal cage frame (701) are detachably mounted on vertical rods on two sides of the upper end of the ladder stand (1), and the first horizontal cage frames (701) are connected through the vertical first connecting rods (702).

3. The ladder with the safety cage for the transformer as claimed in claim 1, wherein: the second protective cage (3) comprises a second horizontal cage frame (301) and second connecting rods (302), two sides of an opening end of the second horizontal cage frame (301) are detachably mounted on a pedal beam in the middle of the ladder (1) and are horizontal, and the second horizontal cage frames (301) are connected through the vertical second connecting rods (302).

4. The ladder with the safety cage for the transformer as claimed in claim 1, wherein: the safety protection door is characterized in that a door lock (5) and a lock nose (801) are arranged on the opening side of the safety protection door (4), and the grounding wire (6) is installed on the back of the safety protection door (4) and is led out for grounding.

5. The ladder with the safety cage for the transformer as claimed in claim 1, wherein: the safety protection door (4) is provided with a warning mark.

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