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Indoor door automatic dowel pin structure

A technology for concealed bolts and indoor doors, which is applied in building structures, building fastening devices, buildings, etc., can solve the problems of complex concealed bolt structures, high cost of concealed bolts, and short service life, and achieves easy automatic reset and structure. Simple, long-lasting effects

Inactive Publication Date: 2018-09-25
TIANJIN LONGJIA SPECIAL DOOR & WINDOW
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Compared with light and dark bolts, the existing blind bolts have the advantages of labor saving, good hand feeling, and automatic reset of the handle, so they are widely used on various corridor unit doors. However, the existing blind bolts have the following disadvantages. The structure of the blind bolt is complex, and due to its structural problems, the existing blind bolt has defects such as high cost. The existing dead bolt has a short service life due to its complex structure. Therefore, we introduce an automatic blind bolt for indoor doors structure

Method used

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  • Indoor door automatic dowel pin structure
  • Indoor door automatic dowel pin structure
  • Indoor door automatic dowel pin structure

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] see Figure 1-3 , the present invention provides a technical solution: an automatic hidden latch structure for an indoor door, including an indoor door 4, a door lock 8 is provided on the left front of the indoor door 4, and a left inner cavity of the indoor door 4 is provided There is a pin 5, the bottom of the pin 5 is provided with a deadbolt 11, the upper part of the inner cavity of the interior door 4 is located on the outside of the pin 5, and a l...

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Abstract

The invention discloses an indoor door automatic dowel pin structure, which comprises an indoor door, wherein the front portion of the left side of the indoor door is provided with a door lock, the inner cavity of the left side of the indoor door is provided with a pin column, the bottom portion of the pin column is provided with a lock tongue, the upper portion, positioned on the outer side of the pin column, of the inner cavity of the indoor door is provided with a position limiting projection, the upper end of the pin column is provided with a spring position limiting projection, a spring is sleeved and connected on the outer side, positioned between the position limiting projection and the spring position limiting projection, of the upper portion of the pin column, the surface of the middle portion of the pin column is provided with a locking hole, the bottom portion of the door lock is provided with a lock rod, the bottom portion of the lock rod is provided with locking teeth, andthe locking teeth are inserted and connected inside the locking hole. According to the present invention, the indoor door automatic dowel pin structure has characteristics of simple structure, low production cost and long service life; through the engaged connection of the locking teeth and the tooth block projections, the lock rod drives the locking teeth to rotate, such that the locking teeth can precisely drive the pin column to move up and down through the tooth block projections; and by arranging the spring, the pin column can automatically reset.

Description

technical field [0001] The invention relates to the technical field of concealed bolt structure, in particular to an automatic concealed bolt structure for an interior door. Background technique [0002] Compared with light and dark bolts, the existing blind bolts have the advantages of labor saving, good hand feeling, and automatic reset of the handle, so they are widely used on various corridor unit doors. However, the existing blind bolts have the following disadvantages. The structure of the blind bolt is complex, and due to its structural problems, the existing blind bolt has defects such as high cost. The existing dead bolt has a short service life due to its complex structure. Therefore, we introduce an automatic blind bolt for indoor doors structure. Contents of the invention [0003] The object of the present invention is to provide an automatic concealed latch structure for an interior door to solve the problems raised in the above-mentioned background technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05C1/12
CPCE05C1/12
Inventor 荣绍纯
Owner TIANJIN LONGJIA SPECIAL DOOR & WINDOW
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