CN212249767U

CN212249767U - Anticreep chain installation connection structure of tunnel guard gate

Info

Publication number: CN212249767U
Application number: CN202020342979.1U
Authority: CN
Inventors: 梁继雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-12-29
Anticipated expiration: 2030-03-18

Abstract

The utility model provides a tunnel guard gate anticreep chain installation connection structure, which comprises a wall body, a pre-buried reinforcement, a pre-buried steel plate, angle steel, bolts, an anticreep chain and a cement mortar protective layer; the wall body is of a reinforced concrete structure, an embedded steel plate is preset on the outer side surface of the wall body, an embedded reinforcement is welded on the back surface of the embedded steel plate, and the embedded reinforcement is of a symmetrical double-hook-rib structure; two angle steels are symmetrically welded on the pre-buried steel plate, one end of each angle steel is in full-welding connection with the pre-buried steel plate, matched bolt holes are formed in the other ends of the two symmetrical angle steels, bolts are installed on the bolt holes and are C-level hexagon bolts, the anti-falling chain is sleeved on bolt screws between the angle steels on the two sides, cement mortar protective layers are arranged on wall bodies beside the angle steels on the two sides, and the pre-buried steel plates and the fixed ends of the angle steel welding are covered by the cement mortar protective.

Description

Anticreep chain installation connection structure of tunnel guard gate

Technical Field

The utility model relates to a guard gate anticreep chain installation field especially relates to a tunnel guard gate anticreep chain erection joint structure.

Background

The tunnel protection door can resist the air pressure brought by the same train in the tunnel, so that the internal equipment is intact and is not damaged by air pressure shock waves. The tunnel protection door is generally provided with an anti-drop chain, one end of the anti-drop chain is fixed with the protection door, and the other end of the anti-drop chain is fixed with a wall body; the existing anti-drop chain is generally directly drilled and anchored with a wall body, the connection firmness of the drilled holes is poor, and the anti-drop chain and the wall body are troublesome to disassemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a tunnel guard gate anticreep chain erection joint structure, adopt the utility model discloses a structure is fixed the anticreep chain on the bolt, and the bolt fastening is on the angle steel of both sides, and the angle steel welding is on pre-buried steel sheet, and the fastness is good, can conveniently prevent that fire door dismantles the maintenance.

In order to achieve the above object, the utility model adopts the following technical scheme: a chain-dropping prevention mounting and connecting structure of a tunnel protection door comprises a wall body, an embedded reinforcement, an embedded steel plate, angle steel, bolts, a chain-dropping prevention and a cement mortar protective layer; the wall body is of a reinforced concrete structure, an embedded steel plate is preset on the outer side surface of the wall body, an embedded reinforcement is welded on the back surface of the embedded steel plate, and the embedded reinforcement is of a symmetrical double-hook-rib structure; two angle steels are symmetrically welded on the pre-buried steel plate, one end of each angle steel is in full-welding connection with the pre-buried steel plate, matched bolt holes are formed in the other ends of the two symmetrical angle steels, bolts are installed on the bolt holes and are C-level hexagon bolts, the anti-falling chain is sleeved on bolt screws between the angle steels on the two sides, cement mortar protective layers are arranged on wall bodies beside the angle steels on the two sides, and the pre-buried steel plates and the fixed ends of the angle steel welding are covered by the cement mortar protective.

Preferably, the thickness of the embedded steel plate is 20 mm.

The utility model has the advantages that: adopt the utility model discloses a structure will prevent that the anticreep chain is fixed on the bolt, and the bolt fastening is on the angle steel of both sides, and the angle steel welding is on pre-buried steel sheet, and the fastness is good, can conveniently prevent that fire door dismantles the maintenance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 is a schematic view of a mounting and connecting structure of a drop-proof chain of a tunnel protection door.

FIG. 2 is a schematic side view of the drop chain attachment connection.

FIG. 3 is a schematic diagram of the position of the guard chain.

Wherein: the wall body 1, the embedded reinforcement 2, the embedded steel plate 3, the angle steel 4, the bolt 5, the anticreep chain 6 and the cement mortar protective layer 7.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings 1-3.

As shown in fig. 1-3, a connecting structure for installing an anti-drop chain of a tunnel protection door comprises a wall body 1, an embedded reinforcement 2, an embedded steel plate 3, angle steel 4, a bolt 5, an anti-drop chain 6 and a cement mortar protective layer 7; the wall body 1 is of a reinforced concrete structure, an embedded steel plate 3 is preset on the outer side surface of the wall body 1, an embedded reinforcement 2 is welded on the back surface of the embedded steel plate 3, and the embedded reinforcement 2 is of a symmetrical double-hook rib structure; two angle steel 4 of symmetrical welding on the embedded steel sheet 3, angle steel 4 one end should be connected with embedded steel sheet 3 full weld, be equipped with the matched with bolt hole on two symmetrical angle steel 4 other ends, install bolt 5 on the bolt hole, this bolt 5 is C level hexagon head bolt, anticreep chain 6 cover is equipped with cement mortar protective layer 7 on the other wall body 1 of both sides angle steel 4 on the bolt 5 screw rod between the angle steel 4 of both sides, cement mortar protective layer 7 covers embedded steel sheet 3 and angle steel 4 welding stiff end.

In specific implementation, the thickness of the embedded steel plate 3 is 20 mm.

Claims

1. The utility model provides a tunnel guard gate anticreep chain erection joint structure which characterized in that: the anti-slip wall comprises a wall body, an embedded reinforcement, an embedded steel plate, angle steel, bolts, an anti-slip chain and a cement mortar protective layer; the wall body is of a reinforced concrete structure, an embedded steel plate is preset on the outer side surface of the wall body, an embedded reinforcement is welded on the back surface of the embedded steel plate, and the embedded reinforcement is of a symmetrical double-hook-rib structure; two angle steels are symmetrically welded on the pre-buried steel plate, one end of each angle steel is in full-welding connection with the pre-buried steel plate, matched bolt holes are formed in the other ends of the two symmetrical angle steels, bolts are installed on the bolt holes and are C-level hexagon bolts, the anti-falling chain is sleeved on bolt screws between the angle steels on the two sides, cement mortar protective layers are arranged on wall bodies beside the angle steels on the two sides, and the pre-buried steel plates and the fixed ends of the angle steel welding are covered by the cement mortar protective.

2. The installation and connection structure of the drop-proof chain of the tunnel protection door according to claim 1, wherein: the thickness of the embedded steel plate is 20 mm.