CN111425089B

CN111425089B - Door hinge device

Info

Publication number: CN111425089B
Application number: CN202010251402.4A
Authority: CN
Inventors: 唐仙强; 项继平; 刘雪明; 王荣臻
Original assignee: Zhejiang Kkd Security Technology Co ltd
Current assignee: Zhejiang Kkd Security Technology Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2022-04-22
Anticipated expiration: 2040-04-01
Also published as: CN111425089A

Abstract

The invention discloses a door hinge device, which comprises a first hinge fixing plate, a second hinge fixing plate and a rotating shaft, wherein the first hinge fixing plate is fixed on the first hinge fixing plate; the first hinge fixing plate is fixedly connected with the rotating shaft, a bushing is arranged between the second hinge fixing plate and the rotating shaft, the bushing is arranged on a gasket, and the gasket is arranged on the rotating shaft on the first hinge fixing plate; the rotating shaft is provided with a through hole along the axis direction and a first communicating hole which is connected with the through hole and leads to the outside, the gasket is provided with a second communicating hole which leads to the outside, and the first communicating hole and the second communicating hole correspond to each other in position. The accessible sets up at the through-hole and the first through-hole of pivot axis direction and sets up the second through-hole on the packing ring to the inside lubricating oil that adds of hinge means to still be provided with the bush between second hinge fixed plate and pivot, with this guarantee lubricated motion between second hinge fixed plate and the pivot, the noise that produces when eliminating the switch door, the practicality is good.

Description

Door hinge device

Technical Field

The invention belongs to the field of accessories of doors, and particularly relates to a door hinge device.

Background

Along with the continuous improvement of people's standard of living, no matter be life place or public place, people are more and more high to the requirement of door silence, and there is a potential noise problem in the hinge on the existing market:

firstly, noise is generated by dry grinding of the same material on the door hinge;

secondly, noise is generated on the door hinge due to drying friction.

Disclosure of Invention

The invention provides a door hinge device for solving the problem of noise generated when a door is opened and closed.

The door hinge device comprises a hinge main body, a first hinge fixing plate, a second hinge fixing plate and a rotating shaft, wherein the hinge main body comprises the first hinge fixing plate, the second hinge fixing plate and the rotating shaft;

the first hinge fixing plate is fixedly connected with the rotating shaft, a bushing is arranged between the second hinge fixing plate and the rotating shaft, the bushing is arranged on a gasket, and the gasket is arranged on the rotating shaft on the first hinge fixing plate; the rotating shaft is provided with a through hole along the axial direction and a first communicating hole which is connected with the through hole and leads to the outside, the gasket is provided with a second communicating hole which leads to the outside, and the first communicating hole and the second communicating hole are mutually corresponding in position; the second hinge fixing plate and the first hinge fixing plate move relatively through the bushing.

Furthermore, an oil-gas passing groove is formed in the gasket between the second communication hole and the first communication hole.

Furthermore, a fixing groove is formed in the gasket, the bushing is arranged in the fixing groove, and the second communication hole, the oil-gas passing groove and the fixing groove are communicated.

Further, the bush is installed in the fixing groove and is in transition fit with the fixing groove.

Furthermore, the bushing is made of a metal material or a plastic material.

Further, the bushing is made of a powder metallurgy oil-containing material.

Furthermore, an oil storage space is arranged at the upper end of the matching position of the second hinge fixing plate, the rotating shaft and the bushing.

Furthermore, a rubber plug is arranged outside the second communication hole

Drawings

FIG. 1 is a schematic cross-sectional view of a door hinge assembly according to the present invention;

FIG. 2 is an enlarged view of part A of the door hinge assembly of the present invention;

FIG. 3 is a schematic cross-sectional view of a washer of the door hinge assembly of the present invention;

fig. 4 is a schematic view showing a position structure of the door hinge device according to the present invention on the door.

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The following description is of the preferred embodiment for carrying out the invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.

The present invention will be described in further detail below with reference to the accompanying drawings, but the present invention is not limited thereto.

Examples

As shown in fig. 1 to 3, a door hinge device includes a hinge body 4, the hinge body 4 including a first hinge fixing plate 41, a second hinge fixing plate 42, and a rotation shaft 44;

the first hinge fixing plate 41 is fixedly connected with a rotating shaft 44, a bushing 43 is arranged between the second hinge fixing plate 42 and the rotating shaft 44, the bushing 43 is mounted on a gasket 45, and the gasket 45 is mounted on the rotating shaft 44 on the first hinge fixing plate 41; the rotating shaft 44 is provided with a through hole 441 along the axial direction and a first communicating hole 442 which is connected with the through hole 441 and leads to the outside, the gasket 45 is provided with a second communicating hole 451 which leads to the outside, and the first communicating hole 442 and the second communicating hole 451 correspond to each other in position; the second hinge fixing plate 42 and the first hinge fixing plate 41 move relative to each other through a bushing 43. In practical or production process, lubricating oil can be added into the hinge device through the through hole 441 and the first communicating hole 442 arranged in the axial direction of the rotating shaft and the second communicating hole 451 arranged on the gasket 5, and a bush 43 is further arranged between the second hinge fixing plate 42 and the rotating shaft 44, so that the lubricating motion between the second hinge fixing plate 42 and the rotating shaft 44 is ensured, and the noise generated when the door is opened and closed is eliminated. As shown in fig. 4, the hinge body 4 is assembled to the door, the hinge body 4 is assembled between the door 2 and the door frame 1, and the door 2 is opened by pulling the handle 3.

Preferably, the gasket 45 is provided with an oil-gas passing groove 452 between the second communication hole 451 and the first communication hole 442, and the oil-gas passing groove 452 may store lubricating oil.

More preferably, the gasket 45 is provided with a fixing groove 453, the bush 43 is disposed in the fixing groove 453, and the second communication hole 451, the oil gas passing groove 452, and the fixing groove 453 communicate with each other.

More preferably, the bushing 43 is installed in the seating groove 453 and is transition-fitted to the seating groove 453.

More preferably, the bushing 43 is made of a metal material or a plastic material.

More preferably, the bushing 43 is made of a powder metallurgy oil-containing material.

More preferably, an oil storage space 421 is further provided at an upper end of a position where the second hinge fixing plate 42 engages with the rotating shaft 44 and the bushing 43.

More preferably, a rubber stopper is provided outside the second communication hole 451 to prevent the overflow of the added lubricant and the entry of dust.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept described herein, as determined by the above teachings or as determined by the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A door hinge device includes a hinge main body (4), the hinge main body (4) including a first hinge fixing plate (41), a second hinge fixing plate (42), and a rotation shaft (44);

the method is characterized in that: the first hinge fixing plate (41) is fixedly connected with a rotating shaft (44), a bushing (43) is arranged between the second hinge fixing plate (42) and the rotating shaft (44), the bushing (43) is installed on a gasket (45), and the gasket (45) is installed on the rotating shaft (44) on the first hinge fixing plate (41); the rotating shaft (44) is provided with a through hole (441) along the axial direction and a first communicating hole (442) which is connected with the through hole (441) and leads to the outside, the gasket (45) is provided with a second communicating hole (451) leading to the outside, and the first communicating hole (442) and the second communicating hole (451) correspond to each other in position; the second hinge fixing plate (42) and the first hinge fixing plate (41) move relatively through a bushing (43);

an oil-gas passing groove (452) is formed in the gasket (45) between the second communication hole (451) and the first communication hole (442); the gasket (45) is provided with a fixing groove (453), the bush (43) is arranged in the fixing groove (453), and the second communication hole (451), the oil-gas passing groove (452) and the fixing groove (453) are communicated with each other.

2. A door hinge device according to claim 1, wherein the bushing (43) is installed in the fixing groove (453) and transition-fitted to the fixing groove (453).

3. A door hinge device according to claim 1 or 2, wherein said bushing (43) is made of a metal material or a plastic material.

4. A door hinge assembly according to claim 1 or 2, wherein said bushing (43) is made of powder metallurgy oil-impregnated material.

5. A door hinge device as claimed in claim 1, wherein an oil storage space (421) is further provided at an upper end of a position where the second hinge fixing plate (42) is engaged with the rotary shaft (44) and the bushing (43).

6. A door hinge device according to claim 1, 2 or 5, wherein a rubber stopper is provided outside said second communicating hole (451).