CN220955172U - High-strength door hinge - Google Patents

Abstract

The utility model discloses a high-strength door hinge, which comprises a left half door hinge and a right half door hinge which are mutually hinged through hinge arms, wherein both the two half door hinges comprise a bottom cover; the hinge arm comprises a hinge seat and a hinge joint, wherein the hinge seat is assembled with the bottom cover of one half of the door hinges through a shaft pin, and the hinge joint is also assembled with the bottom cover of the other half of the door hinges through the shaft pin; the hinge seat is provided with a hinge groove, the hinge joint is provided with a hinge arm, a sliding assembly structure is arranged between the hinge arm and the hinge groove, and the sliding direction of the hinge arm relative to the hinge groove is parallel to the rotating direction of the door hinge. The two half door hinges are hinged with each other by movably embedding the clamping strip in the clamping groove, and the two half door hinges can slide in the clamping groove by the clamping strip to realize relative rotation. Because the extending direction of the clamping strip is parallel to the rotating direction of the door hinge, the clamping strip is stressed along the shaft strip when the door hinge rotates, the stressed area is greatly increased, the bearing capacity of the door hinge can be obviously improved, and the service life is prolonged.

Description

High-strength door hinge

Technical Field

The utility model belongs to the technical field of hardware fittings, and particularly relates to a door hinge mainly used for installing products such as rotary doors and windows.

Background

Door hinges are widely used for installing products such as a door or a window (a door is taken as an example for illustration below) which are opened and closed in a rotating way, and are generally formed by two halves of door hinges which can rotate relatively, hinge arms of the two halves of door hinges are connected through shaft pins, the two halves of door hinges are respectively fixed on a door frame and a door body, and the door body is rotated under the action of the door hinges to realize closing or opening of the door when the door body is pushed. Because the direction of the relative rotation of the door hinge is perpendicular to the shaft pin (namely, parallel to the radial direction of the shaft pin), the stress direction of the shaft pin is radial, and the shaft pin is usually smaller in diameter, not high enough in strength, not good enough in bearing capacity and difficult to bear a heavy door body, and can be bent or even broken after a long time, so that the door is not closed smoothly or even cannot be closed.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model provides the door hinge which has more reasonable structural design, stronger bearing capacity, better stability and higher structural strength.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a high strength door hinge, is including realizing two half door hinges about each other articulated through the arm of hinge, two half door hinges all include bottom, its characterized in that: the hinge arm comprises a hinge seat and a hinge joint, wherein the hinge seat and the bottom cover of one half of the door hinges are assembled into a rotatable structure through shaft pins, and the hinge joint and the bottom cover of the other half of the door hinges are also assembled into a rotatable structure through shaft pins; the hinge seat is provided with a hinge groove, the hinge joint is provided with a hinge arm which can be inserted into the hinge groove, an assembly structure capable of sliding relatively is formed between the hinge arm and the hinge groove through a sliding fit clamping structure, and the sliding direction of the hinge arm relative to the hinge groove is parallel to the rotating direction of the door hinge.

Further, the sliding fit clamping structure comprises clamping strips arranged on two sides of the hinge arm and clamping grooves arranged on two groove walls of the hinge groove, the clamping strips are in sliding fit in the clamping grooves, and the sliding direction of the clamping strips is parallel to the rotating direction of the hinge.

Further, the clamping groove adopts a strip-shaped structure with an arc-shaped cross section, the clamping strip is of a strip-shaped arc-shaped columnar structure matched with the clamping groove, and the clamping strip and the hinge arm are of an integrated structure.

Further, a first fixing seat and a second fixing seat are respectively arranged in the bottom covers of the two half door hinges, a first installation position is arranged in the first fixing seat, and the hinge seat is arranged in the first installation position through a shaft pin to form a rotatable structure; the second fixing seat is provided with a second mounting groove, the hinge joint is provided with a fixing head, the hinge arm and the fixing head are connected into an integral structure of the T-shaped frame, and the fixing head is movably mounted in the second mounting groove through a shaft pin to form a rotatable structure.

Preferably, each set of door hinge comprises two groups of hinge arms which are arranged along an upper structure and a lower structure and are in a positive-negative structural layout, namely, one group of hinge arms are in a structure of a left hinge seat and a right hinge head, the other group of hinge arms are in a structure of a left hinge head and a right hinge seat, and the hinge arms of the two groups of hinge arms form opposite sliding directions, so that the bearing performance can be further improved.

Further, a first mounting groove is formed in the first fixing seat, and a fixing head of a hinge joint of the other hinge arm is arranged in the first mounting groove through a shaft pin to form a rotatable structure; the second fixing seat is provided with a second installation position, and the articulated arm of the other articulated arm is movably installed in the second installation position through a shaft pin to form a rotatable structure.

Further, a position avoiding groove is formed in the rear of the first installation position, a position avoiding hole is formed in the rear of the second installation position, and when the door hinge rotates towards a closed state, the front ends of the two hinge arms respectively extend into the position avoiding groove and the position avoiding hole, so that the hinge arms are prevented from being propped against and being incapable of being closed when the door is closed.

According to the utility model, the clamping strips and the clamping grooves which are parallel to the rotation direction of the door hinge are designed between the hinge seat and the hinge head of the door hinge to serve as sliding and clamping structures, the two half door hinges are mutually hinged by being movably embedded in the clamping grooves, and the two half door hinges can slide in the clamping grooves by the clamping strips to realize relative rotation. Because the extending direction of the clamping strip is parallel to the rotating direction of the door hinge, the clamping strip is stressed along the shaft strip when the door hinge rotates, the stressed area is greatly increased, the bearing capacity of the door hinge can be obviously improved, and the service life is prolonged.

Drawings

FIG. 1 is a diagram of the overall structure of the present utility model;

FIG. 2 is a block diagram of another angle of the present utility model;

FIG. 3 is an exploded view of the present utility model;

fig. 4 is an exploded view of the hinge base and the hinge joint of the present utility model.

In the figure, 1 is a bottom cover, 2 is a hinge seat, 21 is a hinge groove, 22 is a clamping groove, 3 is a hinge head, 31 is a fixed head, 32 is a hinge arm, 33 is a clamping bar, 4 is a first fixing seat, 41 is a first installation position, 42 is a first installation groove, 43 is a avoidance groove, 5 is a second fixing seat, 51 is a second installation position, 52 is a second installation groove, and 53 is a avoidance hole.

Detailed Description

In this embodiment, referring to fig. 1 to fig. 4, the high-strength door hinge includes a left half door hinge and a right half door hinge which are hinged to each other by hinge arms, and both the two half door hinges include a bottom cover 1, and are fixed on a door body and a door frame by the bottom cover 1; the hinge arm comprises a hinge seat 2 and a hinge joint 3, wherein the hinge seat 2 and a bottom cover 1 of one half of the door hinges are assembled into a rotatable structure through a shaft pin (in the prior art, not shown in the figure, the lower part is the same as the prior art), and the hinge joint 3 and the bottom cover 1 of the other half of the door hinges are also assembled into the rotatable structure through the shaft pin; the hinge seat 2 is provided with a hinge groove 21, the hinge joint 3 is provided with a hinge arm 32 which can be inserted into the hinge groove 21, a relatively sliding assembly structure is formed between the hinge arm 32 and the hinge groove 21 through a sliding fit and clamping structure, and the sliding direction of the hinge arm 32 relative to the hinge groove 21 is parallel to the rotation direction of the door hinge, such as the horizontal direction.

The sliding engagement structure comprises a clamping strip 33 arranged at two sides of the hinge arm 32 and a clamping groove 22 arranged on two groove walls of the hinge groove 21, and of course, the positions of the clamping strip 33 and the clamping groove 22 can be interchanged, so that the effect is unchanged. The clamping strip 33 is slidably arranged in the clamping groove 22, and the sliding direction of the clamping strip 33 is parallel to the rotating direction of the door hinge. For example, as the two halves of the door hinge approach each other when the door is closed, the locking bar 33 slides in the locking slot 22 toward the opposite door hinge; when the door is opened, the clamping strip 33 is retracted in the clamping groove 22 towards the side where the clamping strip is located along with the gradual separation of the two door hinge halves. In this way, the whole or most of the surface of the clamping strip 33 is stressed during the closing and opening processes, so that the deformation is not easy to damage.

The clamping groove 22 adopts a strip structure with an arc-shaped cross section, the clamping strip 33 is a strip arc-shaped columnar structure matched with the clamping groove 22, and the clamping strip 33 and the hinge arm 32 are of an integrated structure.

A first fixed seat 4 and a second fixed seat 5 are respectively arranged in the bottom cover 1 of the two half door hinges, a first installation position 41 is arranged in the first fixed seat 4, and the hinge seat 2 is arranged in the first installation position 41 through a shaft pin to form a rotatable structure; a second mounting groove 52 is formed in the second fixing seat 5, the hinge joint 3 is provided with a fixing head 31, the hinge arm 32 and the fixing head 31 are connected into an integral structure of a T-shaped frame, and the fixing head 31 is movably mounted in the second mounting groove 52 through a shaft pin to form a rotatable structure.

Each set of door hinge comprises two groups of hinge arms which are arranged along an upper structure and a lower structure and are in a positive-negative structural layout, namely, one group of hinge arms are in a structure of a left hinge seat 2 and a right hinge head 3, the other group of hinge arms are in a structure of the left hinge head 3 and the right hinge seat 2, and the hinge arms of the two groups of hinge arms form opposite sliding directions, so that the bearing performance can be further improved.

A first mounting groove 42 is formed in the first fixing seat 4, and the fixed head 31 of the hinge head 3 of the other hinge arm is arranged in the first mounting groove 42 through a shaft pin to form a rotatable structure; a second mounting location 51 is provided in the second fixing base 5, and the hinge arm 32 of the other hinge arm is movably mounted in the second mounting location 51 by a shaft pin to form a rotatable structure.

A clearance groove 43 is formed at the rear of the first mounting position 41, a clearance hole 53 is formed at the rear of the second mounting position 51, and the front ends of the two hinge arms 32 respectively extend into the clearance groove 43 and the clearance hole 53 when the door hinge rotates towards the closed state, so that the hinge arms 32 are prevented from being propped against and being unable to be closed when the door is closed.

The foregoing detailed description of the utility model has been presented for purposes of illustration and description, but is not intended to limit the scope of the utility model, i.e., the utility model is not limited to the details shown and described.

Claims (7)

1. The utility model provides a high strength door hinge, is including realizing two half door hinges about each other articulated through the arm of hinge, two half door hinges all include bottom, its characterized in that: the hinge arm comprises a hinge seat and a hinge joint, wherein the hinge seat and the bottom cover of one half of the door hinges are assembled into a rotatable structure through shaft pins, and the hinge joint and the bottom cover of the other half of the door hinges are also assembled into a rotatable structure through shaft pins; the hinge seat is provided with a hinge groove, the hinge joint is provided with a hinge arm which can be inserted into the hinge groove, an assembly structure capable of sliding relatively is formed between the hinge arm and the hinge groove through a sliding fit clamping structure, and the sliding direction of the hinge arm relative to the hinge groove is parallel to the rotating direction of the door hinge.

2. The high strength door hinge of claim 1, wherein: the sliding fit clamping structure comprises clamping strips arranged on two sides of the hinge arm and clamping grooves arranged on two groove walls of the hinge groove, the clamping strips are in sliding fit in the clamping grooves, and the sliding direction of the clamping strips is parallel to the rotating direction of the hinge.

3. The high strength door hinge of claim 2, wherein: the clamping groove adopts a strip-shaped structure with an arc-shaped cross section, the clamping strip is of a strip-shaped arc-shaped columnar structure matched with the clamping groove, and the clamping strip and the hinge arm are of an integrated structure.

4. The high strength door hinge of claim 1, wherein: a first fixing seat and a second fixing seat are respectively arranged in the bottom covers of the two half door hinges, a first installation position is arranged in the first fixing seat, and the hinge seat is arranged in the first installation position through a shaft pin to form a rotatable structure; the second fixing seat is provided with a second mounting groove, the hinge joint is provided with a fixing head, the hinge arm and the fixing head are connected into an integral structure of the T-shaped frame, and the fixing head is movably mounted in the second mounting groove through a shaft pin to form a rotatable structure.

5. The high strength door hinge according to claim 4, wherein: each set of door hinge comprises two groups of hinge arms which are arranged along an upper structure and a lower structure and are in a positive-negative structure layout, namely, one group of hinge arms are in a structure of a left hinge seat and a right hinge head, the other group of hinge arms are in a structure of a left hinge head and a right hinge seat, and the hinge arms of the two groups of hinge arms form opposite sliding directions.

6. The high strength door hinge according to claim 5, wherein: a first mounting groove is formed in the first fixing seat, and a fixed head of a hinge joint of the other hinge arm is arranged in the first mounting groove through a shaft pin to form a rotatable structure; the second fixing seat is provided with a second installation position, and the articulated arm of the other articulated arm is movably installed in the second installation position through a shaft pin to form a rotatable structure.

7. The high strength door hinge according to claim 6, wherein: a clearance groove is formed in the rear of the first installation position, a clearance hole is formed in the rear of the second installation position, and the front ends of the two hinge arms respectively extend into the clearance groove and the clearance hole when the door hinge rotates towards the closed state.