CN202689874U - Platform safety door - Google Patents

Abstract

The utility model relates to the field of a chemical engineering device, in particular to a platform safety door, which comprises two upright posts in parallel arrangement, wherein the platform safety door is provided a square safety door, an arc-shaped stop block is arranged on the upright post arranged at one side, the upright post arranged at the other side is fixedly provided with a connecting plate, when the safety door is in the closed state, one side of the safety door is clamped in the arc-shaped stop block, the upper part of the other side of the safety door is sheathed in a steel pipe connected with the connecting plate, the lower part is sheathed in an upper sleeve pipe and a lower sleeve pipe, contact surfaces between the upper sleeve pipe and the lower sleeve pipe are inclined for forming an angle, the upper sleeve pipe is welded with the safety door, one side of the lower sleeve pipe is connected with the connecting plate, and the safety door can rotate in the lower sleeve pipe. Compared with the prior art, the platform safety door has the advantage that the automatic closing of the safety door is realized. Compared with an ordinary safety door, the platform safety door has the advantages that any components are not added to the whole structure, the manufacture is very simple, and good effects can be brought.

Description

The platform safety door

Technical field

This novel practical device relates to the chemical plant installations field, is specifically related to a kind of platform safety door.

Background technology

In the junction of chemical plant installations platform and cat ladder, according to related specifications corresponding safety device should be set, prevent that the workman from causing danger when platform operates.Easy way was that a theft-resistant link chain is set in the past, but the footprint of theft-resistant link chain is limited, and current way is that safety door is set in recent years, and this safety door has increased effective footprint, can play a very good protection.

But there are some drawbacks in the safety door of ordinary construction, climbs on the platform from cat ladder such as the workman, need to open first safety door, just can enter platform, want the closed safe door after entering as requested platform, but often there is the workman to forget the closed safe door, so just stayed very large potential safety hazard.

The utility model content

In order to solve the technical problem that exists in the prior art, the purpose of this utility model is to provide a kind of platform safety door that can utilize self gravitation to realize autoshutdown.

The technical solution adopted in the utility model is as follows:

The platform safety door comprises the column of two parallel arrangements it is characterized in that having square safety door,

One heel post is provided with block arc, and the opposite side column is fixed with junction plate;

When safety door was in closed condition, a side of safety door was stuck in the block arc;

In the steel pipe that the top of safety door opposite side is enclosed within junction plate is connected, the bottom is enclosed within sleeve pipe and the setting of casing, the angle that tilts of the contact surface between upper sleeve pipe and the setting of casing;

Upper sleeve pipe and safety door welding, setting of casing one side is connected with junction plate, and safety door can rotate in setting of casing.

The utility model platform safety door, compared with prior art, advantage is, has realized the autoshutdown of safety door, total is compared with common safety door does not almost increase any parts, makes extremely simply, but can bring good effect.

Description of drawings

For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing utility model is further described.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is plan structure schematic diagram of the present utility model.

The specific embodiment

See also Fig. 1 and 2, the platform safety door comprises column 1, the square safety door 5 of two parallel arrangements.

One heel post 1 is provided with block arc 7, and the opposite side column is fixed with junction plate 2.

When safety door 5 was in closed condition, a side of safety door 5 was stuck in the block arc 7.

The top of safety door 5 opposite sides is enclosed within the steel pipe 3 that is connected with junction plate 2, and the bottom is enclosed within sleeve pipe 6 and the setting of casing 4.

Upper sleeve pipe 6 and safety door 5 welding are namely gone up sleeve pipe 6 and are rotated with safety door 5.Setting of casing 4 one sides are connected (relative position is constant) with junction plate 2, and safety door 5 can be in setting of casing 4 interior rotations.Contact surface between upper sleeve pipe 6 and the setting of casing 4 angle that tilts needs to guarantee that the angular cutouts surface have certain slickness.

When opening safety door 5, because upper sleeve pipe 6 and safety door 5 welding, can be along with corresponding the rotation occurs opening of safety door 5, and setting of casing 4 and junction plate welding, can't rotate this moment, like this along with open (rotation) of safety door 5, whole safety door 5 can rise on the inclined-plane, the generation of the discrepancy in elevation potential energy that a body weight causes of just kinetic transformation that opens the door being served as reasons, when the external force of opening door disappears, this potential energy will change into kinetic energy, safety door meeting autoshutdown, and the contact surface between upper sleeve pipe 6 and the setting of casing 4 recovers original inclined plane gradually.

Compared with prior art, the utility model platform safety door, its improvement only is original setting of casing is cut open according to certain angle, and with the cutting surfaces ground smooth in order to slide.Therefore, total is compared with common safety door does not almost increase any parts, makes extremely simply, but can bring good effect.

Above content only is to the utility model structure example and explanation; under those skilled in the art described specific embodiment is made various modifications or replenish or adopt similar mode to substitute; only otherwise depart from the structure of utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.

Claims (1)

1. platform safety door comprises the column of two parallel arrangements it is characterized in that having square safety door,

One heel post is provided with block arc, and the opposite side column is fixed with junction plate;

When safety door was in closed condition, a side of safety door was stuck in the block arc;

In the steel pipe that the top of safety door opposite side is enclosed within junction plate is connected, the bottom is enclosed within sleeve pipe and the setting of casing, the angle that tilts of the contact surface between upper sleeve pipe and the setting of casing;

Upper sleeve pipe and safety door welding, setting of casing one side is connected with junction plate, and safety door can rotate in setting of casing.

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