CN217269525U

CN217269525U - Hidden hinge for steel-wood door

Info

Publication number: CN217269525U
Application number: CN202220090910.3U
Authority: CN
Inventors: 于德勇
Original assignee: Sichuan Xinxin Door Industry Co ltd
Current assignee: Sichuan Xinxin Door Industry Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-08-23
Anticipated expiration: 2032-01-13

Abstract

The utility model relates to the technical field of hinges, and provides a hidden hinge for steel wood doors, aiming at the problems of complex structure, difficult repair and small opening degree of the existing hinges for doors, comprising a hinge bolt and a hinge blade arranged on the side wall surface of the hinge bolt; the hinge blade is including the first blade, second blade, third blade and the fourth blade that meet in order, the lateral wall face of first blade with the connection can be dismantled to the lateral wall face of hinge bolt, first blade with contained angle between the second blade is the obtuse angle, the second blade with contained angle between the third blade and third blade with contained angle between the fourth blade is the right angle. The concealed hinge is simple in structure and large in door leaf opening degree, the hinge bolt is arranged in the door frame, the hinge blade with the specific bending degree is connected with the door leaf, and the door leaf opening degree of 160 degrees can be achieved.

Description

Blind hinge for steel-wood door

Technical Field

The utility model relates to a hinge technical field particularly, relates to a steel wood door is with blind hinge.

Background

Common steel-wood doors are affected by door leaves, door frames and hinges, the opening degree of the door leaves is usually about 90 to 135 degrees, and the use is limited. In order to solve the problem of small opening of the door leaf, the larger opening of the door leaf is usually realized by changing the structure of the hinge or the connection relationship between the hinge and the door leaf and the door frame, so as to meet the use requirements of the steel-wood door in various scenes.

For example, patent publication No. CN113294045A discloses a large-opening blind hinge, in which a protrusion for fitting a blind hinge pin is disposed at the side of a door leaf, and the blind hinge pin is connected to a hinge blade which is bent so that the door leaf can rotate around the blind hinge pin. However, the above solution has the following inconveniences in production and use: the door leaf and the door frame are required to be made into a multi-stage ladder-shaped structure, the production process is complex, the production difficulty is high, and the production cost is high; the hidden hinge bolt is arranged in the door leaf, after long-time use, the contact surface between the door leaf and the hidden hinge bolt is abraded to a certain extent due to the repeated rotation of the door leaf, and the door leaf is of a special-shaped structure, so that maintenance or replacement of new parts is difficult.

Therefore, a hidden hinge for a steel wood door, which has a simpler structure and can make the door leaf have a large opening degree, is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that current blind hinge structure is complicated, is difficult to maintain. The application provides a steel wooden door is with blind hinge adopts conventional square door leaf, disposes the hinge bolt in the door frame, and through specific bending degree and fixed hinge blade meets with the door leaf, can realize the door leaf degree of opening of exceeding 135 degrees.

The utility model discloses a following technical scheme realizes:

a steel wood door is with blind hinge, including hinge bolt, and dispose the hinge blade on the sidewall surface of the said hinge bolt; the hinge blade is including the first blade, second blade, third blade and the fourth blade that meet in order, the lateral wall face of first blade with the connection can be dismantled to the lateral wall face of hinge bolt, first blade with contained angle between the second blade is the obtuse angle, the second blade with contained angle between the third blade and third blade with contained angle between the fourth blade is the right angle.

Preferably, the included angle between the first blade and the second blade is 120-175 degrees.

Preferably, the hinge bolt is embedded in a frame body of the door frame, a hinge seat is further arranged in the frame body of the door frame, and the hinge seat is arranged close to the hinge blade; the fourth blade is detachably connected with the door leaf.

Preferably, a plurality of hinge screws penetrate through the fourth blade, and the hinge screws penetrate into the inner portion of the door leaf.

Preferably, when the door is in the open state, a recess is disposed in the door frame at a position close to a side wall surface of the door.

Preferably, the first blade, the second blade, the third blade and the fourth blade are integrally formed.

Preferably, one side of the door frame, which is far away from the door leaf, is provided with a through hole through which an expansion screw can pass, and the expansion screw penetrates into the wall.

The technical scheme of the utility model following beneficial effect has:

(1) the hinge bolt is arranged in the door frame, and the hinge blade with specific bending degree is connected with the door leaf, so that the door leaf can realize the opening degree of over 135 degrees, the appearance of the door leaf is not limited additionally, and the hidden hinge can be matched with a common square door leaf for use.

(2) The hidden hinge for the steel-wood door has the advantages of simple structure, convenience in installation, low requirement on production process, and convenience in repair or part replacement in the later use stage.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a blind hinge in embodiment 1 (a door leaf is in a closed state);

fig. 2 is a schematic structural view of a blind hinge in embodiment 1 (a door leaf is in an open state);

fig. 3 is a schematic view of the hinge leaf and hinge latch of fig. 2 in an enlarged state.

An icon: 1-hinge bolt, 2-hinge blade, 21-first blade, 22-second blade, 23-third blade, 24-fourth blade, 3-hinge seat, 4-hinge screw, 5-door frame, 51-recess, 52-expansion screw, 6-door leaf and 7-wall body.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Example 1

As shown in fig. 1 to 3, the present embodiment provides a blind hinge for a steel-wood door, which includes a hinge pin 1 and a hinge blade 2 disposed on a side wall surface of the hinge pin 1; hinge blade 2 is including the first blade 21, second blade 22, third blade 23 and the fourth blade 24 that meet in order, and the lateral wall face of first blade 21 can be dismantled with hinge bolt 1's lateral wall face and be connected, and the contained angle between first blade 21 and the second blade 22 sets up to 135 degrees, and the contained angle between second blade 22 and the third blade 23 and the contained angle between third blade 23 and the fourth blade 24 are the right angle.

In this embodiment, when the hidden hinge is assembled, the hinge pin 1 is disposed in the door frame 5, and the hinge blade 2 with a specific bending degree is connected to the door leaf 6, that is, the door leaf 6 can be opened to an extent exceeding 135 degrees, and the appearance of the door leaf 6 is not limited, so that the hidden hinge can be used with a conventional square door leaf 6.

In the embodiment, the hinge bolt 1 is embedded in the frame body of the door frame 5, the hinge seat 3 is also arranged in the frame body of the door frame 5, and the hinge seat 3 is arranged close to the hinge blade 2; the fourth blade 24 is screwed to the door leaf 6.

In this embodiment, the fourth blade 24 is provided with a plurality of hinge screws 4, and the hinge screws 4 penetrate into the interior of the door leaf 6 to fix the connection position between the door leaf 6 and the hinge blade 2.

In the present embodiment, when the door 6 is in the open state, the door frame 5 is provided with a recess 51 for accommodating a part of the door 6 at a position close to the side wall surface of the door 6.

In this embodiment, the first blade 21, the second blade 22, the third blade 23, and the fourth blade 24 are integrally formed, so that the hinge blade 2 has a better pressure-bearing effect.

In this embodiment, a through hole for the expansion screw 52 to pass through is formed on one side of the door frame 5 away from the door leaf 6, and the expansion screw 52 penetrates into the wall 7 to fix the position of the door frame 5.

In this embodiment, a person skilled in the art can appropriately adjust the bending degree of the hinge leaf 2 and the sinking degree of the concave portion 51 to achieve the opening of the door leaf 6 to a greater degree; the hinge is convenient to stack, the appearance of the door leaf 6 is smooth and the door frame 5 is on the same plane, and the risk of product damage in the transportation process can be reduced.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The hidden hinge for the steel-wood door is characterized by comprising a hinge bolt (1) and a hinge blade (2) arranged on the side wall surface of the hinge bolt (1);

hinge blade (2) are including first blade (21), second blade (22), third blade (23) and fourth blade (24) that meet in order, the lateral wall face of first blade (21) with the connection can be dismantled to the lateral wall face of hinge bolt (1), first blade (21) with contained angle between second blade (22) is the obtuse angle, second blade (22) with contained angle between third blade (23) and third blade (23) with contained angle between fourth blade (24) is the right angle.

2. The blind hinge for steel and wood doors according to claim 1, wherein the angle between the first blade (21) and the second blade (22) is 120-175 degrees.

3. The steel-wood door blind hinge according to claim 1, wherein the hinge bolt (1) is embedded in a frame body of a door frame (5), a hinge base (3) is further arranged in the frame body of the door frame (5), and the hinge base (3) is arranged close to the hinge blade (2); the fourth blade (24) is detachably connected with the door leaf (6).

4. The blind hinge for steel and wood doors according to claim 3, characterized in that a plurality of hinge screws (4) are arranged in the fourth blade (24) in a penetrating manner, and the hinge screws (4) penetrate into the inner part of the door leaf (6).

5. The steel-wood door blind hinge according to claim 3 or 4, wherein a recess (51) is disposed at a position where the door frame (5) is close to a side wall surface of the door (6) when the door (6) is in the open state.

6. The blind hinge for steel wood doors according to claim 1, wherein the first blade (21), the second blade (22), the third blade (23) and the fourth blade (24) are integrally formed.

7. The blind hinge for the steel and wood door as claimed in claim 3, wherein a through hole for an expansion screw (52) to pass through is formed in one side of the door frame (5) far away from the door leaf (6), and the expansion screw (52) penetrates into the wall body (7).