CN219299076U

CN219299076U - Hinge with small-angle buffering

Info

Publication number: CN219299076U
Application number: CN202320319715.8U
Authority: CN
Inventors: 林绍武
Original assignee: Guangzhou Rongtai Hardware Products Co ltd
Current assignee: Guangzhou Rongtai Hardware Products Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-07-04
Anticipated expiration: 2033-02-27

Abstract

The utility model provides a hinge with small-angle buffering, which comprises a hinge shell, a movable plate hinged at the front end of the hinge shell through a fixing pin I, a hydraulic pump arranged at the rear part of the hinge shell, a link mechanism arranged in the hinge shell through a fixing pin II, a hinge cup hinged with the movable plate and the link mechanism through a U-shaped bolt, and a torsion spring arranged on the fixing pin I and used for enabling the hinge to open and close. This application offsets or partly offsets the thrust that the torsional spring produced the driven lever through setting up buffer angle a under the hinge open condition for the hinge has lost the thrust of torsional spring and has reduced the backswing when opening the end, thereby reduces the impact between cabinet door and the cabinet body, increase of service life.

Description

Hinge with small-angle buffering

Technical Field

The utility model relates to the technical field of hardware fittings, in particular to a hinge with small-angle buffering.

Background

The buffering hinge in the prior market achieves the buffering effect through the hydraulic pump for buffering arranged in the hinge, wherein the buffering effect focuses on the reduction of hard collision between the cabinet body and the cabinet door in the process that the hinge is in a closed state; however, when the hinge in the opening state reaches the opening end, the buffering force of the hydraulic pump is lost, and the swing back occurs under the elastic action of the torsion spring.

The existing two-section force buffering hinge reduces the backswing when the hinge is opened to the end, but still generates larger impact under the elastic action of the torsion spring when the hinge is opened to the end, and the connection between the cabinet door and the cabinet body is broken after long-term use, so that the cabinet door is loosened.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a hinge with small-angle buffering.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: the utility model provides a hinge with little angle buffering, includes hinge housing, articulates the fly leaf at hinge housing front end through fixed pin I, installs the hydraulic pump at hinge housing rear portion, install through fixed pin II link mechanism in the hinge housing, pass through U type bolt and fly leaf and link mechanism articulated hinge cup, install make the hinge torsional spring that opens and shuts on the fixed pin I be provided with on the link mechanism with the torsion bar of torsional spring resists the driven lever that is connected, the thrust direction that the torsional spring produced the driven lever with the line that forms between driven lever and the fixed pin II has buffering angle a, buffering angle a makes under the state that the hinge was opened the torsional spring can not promote the driven lever.

Preferably, the buffer angle a is symmetrically arranged with a connecting line formed between the driven rod and the fixed pin II as a center.

Further, the buffer angle a is 0-30 degrees.

Preferably, the driven lever may be provided on an outer side wall of the link mechanism.

Further, a rod sleeve capable of rotating relative to the driven rod is sleeved on the driven rod, and the rod sleeve is in contact connection with the torsion spring.

Further, the driven rod is installed on the outer side wall of the connecting rod mechanism through riveting, and the rod sleeve is sleeved on the part of the driven rod extending out of the outer side wall of the connecting rod mechanism.

Preferably, the link mechanism comprises a movable arm I, a movable arm II and a movable link, wherein the movable arm I and the movable arm II are respectively hinged and fixed in the hinge shell through a fixed pin II and a fixed pin III which are arranged in the hinge shell, the movable link is respectively hinged with one ends of the movable arm I and the movable arm II to form a hinged end I and a hinged end II, the other end of the movable arm II is hinged with the hydraulic pump to form a hinged end III, and the pump rod of the hydraulic pump stretches and contracts to enable the movable arm II, the movable link, the movable arm I, the movable plate and the hinge cup to rotate sequentially.

Further, the hinge end II is kept higher than the hinge end I, and the limit position of the hinge end II rotating rightwards in the hinge opening state is positioned on the right side of the vertical plane of the hinge end III, so that the rod body of the hydraulic pump extends to the end.

Compared with the prior art, the scheme has the advantages that the buffer angle a is set, the thrust generated by the torsion spring to the driven rod is counteracted or partially counteracted under the open state of the hinge, so that the thrust of the torsion spring is lost when the hinge is opened to the end, the backswing is reduced, the impact between the cabinet door and the cabinet body is reduced, and the service life is prolonged.

Drawings

FIG. 1 is an open schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram showing the overall structure of the present utility model;

FIG. 3 is a simplified schematic diagram of a portion of the structure of the present utility model;

FIG. 4 is a simplified schematic diagram of a portion of the structure of the present utility model;

FIG. 5 is a simplified schematic diagram of a portion of the structure of the present utility model;

fig. 6 is a simplified schematic diagram of a portion of the structure of the present utility model.

Description of the embodiments

The utility model is further illustrated by the following examples:

examples

Referring to fig. 1-6, a hinge with small-angle buffering according to this embodiment 1 includes a hinge housing 1, a movable plate 2 hinged at the front end of the hinge housing 1 through a fixing pin i 1a, a hydraulic pump 3 installed at the rear of the hinge housing 1, a link mechanism 4 installed in the hinge housing 1 through a fixing pin ii 1b, a hinge cup 5 hinged with the movable plate 2 and the link mechanism 4 through a U-shaped bolt 1C, a torsion spring 6 installed on the fixing pin i 1a and opening and closing the hinge, a driven rod 41 connected against the torsion bar of the torsion spring 6 is provided on the link mechanism 4, the driven rod 41 can be disposed at the inner side or the outer side of the link mechanism 4, therefore, the torsion bar of the torsion spring 6 can be disposed relatively, a buffer angle a is provided on a connecting line formed between the driven rod 41 and the fixing pin ii 1b, the buffer angle a rotates to two sides with a connecting line or a rotating shaft formed between the driven rod 41 and the fixing pin ii 1b as a start, the driven rod 41 b and the torsion bar 6 can offset a thrust force generated by the driven rod 41 and the driven rod 41, and the hinge 6 can be offset a stress force generated by the hinge door 1b, and the hinge door can be reduced by the friction force lost when the driven rod is opened to the hinge 6 is opened, and the hinge door is opened, and the stress is lost.

Generally, the buffer angle a is symmetrically arranged with the connecting line formed between the driven rod 41 and the fixed pin ii 1b as a center, and the buffer angle a is 0-30 degrees, namely + -15 degrees relative to the symmetry center, when the cabinet door is opened to 75-90 degrees, the thrust of the torsion spring 6 to the driven rod 41 is partially counteracted or counteracted, and the backswing of the cabinet door when the cabinet door is opened is reduced.

Examples

The difference from example 1 is that: in order to facilitate the manufacture of hinge parts, the driven rod 41 may be disposed on an outer sidewall of the linkage mechanism 4, and a rod sleeve 45 rotatable relative to the driven rod 41 is sleeved on the driven rod 41, the rod sleeve 45 is in contact connection with the torsion spring 6, and the rotatable rod sleeve 45 may reduce friction when in contact connection with the torsion spring 6, so that the abrasion of the torsion spring 6 is less.

Examples

The difference from example 2 is that: the driven rod 41 is installed on the lateral wall of the link mechanism 4 through riveting, the driven rod 41 fixed through riveting is softer in material, the driven rod 41 with the material is softer can take place quick wearing and tearing with the direct conflict connection of torsional spring 6, probably lead to the fracture of driven rod 41, consequently need with the cover of rod cover 45 is established on the part that driven rod 41 stretches out the lateral wall of link mechanism 4, the rod cover 45 can use the stereoplasm material to make, with the conflict connection of torsional spring 6 is difficult to quick wearing and tearing, and the rod cover 45 is rotatable, with the wearing and tearing of torsional spring 6 are fewer, can prolong the life of torsional spring 6 and driven rod 41.

Examples

The difference from example 1 is that: the link mechanism 4 comprises a movable arm I42, a movable arm II 43 and a movable link 44, wherein the movable arm I42 and the movable arm II 43 are respectively hinged and fixed in the hinge shell 1 through a fixed pin II 1b and a fixed pin III 1d which are arranged in the hinge shell 1, the movable link 44 is respectively hinged with one ends of the movable arm I42 and the movable arm II 43 to form a hinged end I4 a and a hinged end II 4b, the other end of the movable arm II 43 is hinged with the hydraulic pump 3 to form a hinged end III 4c, and the pump rod of the hydraulic pump 3 stretches and contracts to enable the movable arm II 43, the movable link 44, the movable arm I42, the movable plate 2 and the hinge cup 5 to rotate sequentially.

The hinge end II 4b is kept higher than the hinge end I4 a, and the limit position of the hinge end II 4b rotating rightwards in the hinge opening state is positioned on the right side of the vertical plane of the hinge end III 4c, so that the rod body of the hydraulic pump 3 extends to the end.

In the process from the punching to the closing state of the hinge, the movable arm II 43 takes the fixed pin III 1d as a rotation center, the hinged end III 4c continues to compress towards the hydraulic pump 3, and the hinged end II 4b acts on the movable connecting rod 44 to push the movable arm I42 of the hinged end I4 a to rotate.

Compared with the hinge in the prior art, in the closing process of the hinge, the hydraulic pump 3 is in an outwards extending mode, when the hinge is closed, the hydraulic pump 3 extends to the end, the buffering effect of the hinge can be invalid, and the collision between the cabinet door and the cabinet body can not be buffered fully; in this application, the hinge is closing the in-process, hydraulic pump 3 is the mode that is inwards compressed, and the process is more stable and be difficult for inefficacy, when the hinge will reach the closed condition promptly, the produced cushioning effect of hydraulic pump 3 still exists, reduces the collision of cabinet door and cabinet body.

Claims

1. The utility model provides a hinge with little angle buffering, includes hinge housing, articulates the fly leaf at hinge housing front end through fixed pin I, installs the hydraulic pump at hinge housing rear portion, install through fixed pin II link mechanism in the hinge housing, through U type bolt and fly leaf and link mechanism articulated hinge cup, install make the torsional spring that the hinge opened and shut on the fixed pin I, its characterized in that: the connecting rod mechanism is provided with a driven rod which is in resisting connection with a torsion bar of the torsion spring, a connecting line formed between the torsion spring and the driven rod and the fixed pin II and the connecting line generated by the torsion spring on the driven rod is provided with a buffer angle a, and the buffer angle a enables the torsion spring not to push the driven rod under the state that the hinge is opened.

2. A hinge with low angle cushioning according to claim 1, wherein: the buffer angle a is symmetrically arranged by taking a connecting line formed between the driven rod and the fixed pin II as a center.

3. A hinge with low angle cushioning according to claim 2, wherein: the buffer angle a is 0-30 degrees.

4. A hinge with low angle cushioning according to claim 1, wherein: the driven rod may be disposed on an outer sidewall of the link mechanism.

5. A hinge with low angle cushioning according to claim 4, wherein: the driven rod is sleeved with a rod sleeve which can rotate relative to the driven rod, and the rod sleeve is in contact connection with the torsion spring.

6. A hinge with low angle cushioning according to claim 5, wherein: the driven rod is installed on the outer side wall of the connecting rod mechanism through riveting, and the rod sleeve is sleeved on the part, extending out of the outer side wall of the connecting rod mechanism, of the driven rod.

7. A hinge with low angle cushioning according to claim 1, wherein: the connecting rod mechanism comprises a movable arm I, a movable arm II and a movable connecting rod, wherein the movable arm I and the movable arm II are respectively hinged and fixed in the hinge shell through a fixing pin II and a fixing pin III which are arranged in the hinge shell, the movable connecting rod is respectively hinged with one ends of the movable arm I and the movable arm II to form a hinged end I and a hinged end II, the other end of the movable arm II is hinged with the hydraulic pump to form a hinged end III, and the pump rod of the hydraulic pump stretches and contracts to enable the movable arm II, the movable connecting rod, the movable arm I, the movable plate and the hinge cup to rotate sequentially.

8. A hinge with low angle cushioning according to claim 7, wherein: the hinge end II is higher than the hinge end I, and the limit position of the hinge end II rotating rightwards in the hinge opening state is positioned on the right side of the vertical plane of the hinge end III, so that the rod body of the hydraulic pump extends out to the end.