CN220378080U

CN220378080U - Mute hinge

Info

Publication number: CN220378080U
Application number: CN202321850285.9U
Authority: CN
Inventors: 万军; 万子轩; 万紫涵
Original assignee: Jieyang Junwei Precision Hardware Co ltd
Current assignee: Jieyang Junwei Precision Hardware Co ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-01-23
Anticipated expiration: 2033-07-14

Abstract

The utility model discloses a mute hinge which comprises a master page and a sub page, wherein pipe holes of the master page and pipe holes of the sub page are connected through a shaft core, the shaft core comprises two fixed cores, the fixed cores comprise a concentric base part and a rotating part, the base part is limited by a locking cover, the rotating part extends to the pipe holes of the sub page, the outer diameter of the rotating part is smaller than that of the base part, and the rotating part is sleeved with a shaft sleeve and is the same as the outer diameter of the base part after being sleeved with the shaft sleeve. After the sleeve is sleeved, the gap between the sub-hinge hole and the fixed core is reduced, and the smoothness of the hinge in the rotating process is increased.

Description

Mute hinge

Technical Field

The utility model relates to the technical field of hardware accessories, in particular to a mute hinge.

Background

The axle core in ordinary hinge is directly inserted in the pivot hole of hinge, when the hinge rotates, can produce very big frictional force and noise between axle core and the shaft hole, influences the result of use of hinge. Because the form of the surface contact is adopted between the shaft core and the rotating shaft hole, and the shaft holes of the first hinge piece and the second hinge piece are circularly distorted due to the processing technology during production and the physical characteristic of rebound of the metal material, when the hinge rotates, great friction force can be generated between metals, friction sound can be generated, noise is generated, and the using effect is influenced.

Disclosure of Invention

An object of the present application is to provide an oilless mute hinge, so as to solve the problem set forth in the above background technology.

In order to achieve the above purpose, the present application provides the following technical solutions:

the utility model provides a mute hinge, includes master page and sub page, the tube hole of master page and the tube hole of sub page pass through the axle core and connect, the axle core includes two fixed cores, fixed core include the basic portion and the rotation portion of coaxial center, basic portion is located the tube hole of master page through locking lid limit, rotation portion extends to the tube hole of sub page, just the external diameter of rotation portion is less than basic portion, rotation portion cup joints a hollow axle sleeve to cup joint behind the axle sleeve and the basic portion external diameter the same.

After the fixed core is sleeved with the shaft sleeve, the gap between the sub-hinge hole and the fixed core is reduced, and the smoothness of the hinge in the rotating process is improved.

Preferably, the rotating part is further divided into a first rotating part and a second rotating part, the first rotating part is connected with the base part, the outer diameter of the first rotating part is smaller than that of the base part, the second rotating part is connected with the first rotating part, the outer diameter of the second rotating part is smaller than that of the first rotating part, the through hole in the middle of the shaft sleeve is also in a step shape, and the through hole comprises a large hole and a small hole which are respectively matched with the first rotating part and the second rotating part.

Through the cooperation of the rotating part of step type and the shaft sleeve, when the sub-page rotates, the shaft sleeve is more stable and smooth.

As another preferable aspect, the rotating part is further divided into a first rotating part and a second rotating part, the first rotating part is connected with the base part and has a smaller outer diameter than the base part, the second rotating part is connected with the first rotating part and has a smaller outer diameter than the first rotating part, the through hole in the middle of the shaft sleeve is a fixed aperture, the through hole is sleeved on the first rotating part, and the second rotating part is sleeved with the needle bearing.

The ball bearing can further assist the tube hole of the sub-page to rotate, so that friction force is reduced.

In summary, the utility model has the technical effects and advantages that: according to the utility model, the main page and the sub page are connected through the shaft core, the shaft core comprises the fixed core, and the shaft sleeve and the needle roller bearing are sleeved on the fixed core, so that the main page and the sub page keep good shaft center coaxiality on one hand, keep flexible rotation on the other hand, have no direct metal friction, and have good silencing effect and long service life.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a mute hinge;

fig. 2 is a schematic view of a partial structure of a shaft core of the mute hinge;

FIG. 3 is a schematic view of a structure of a core of a mute hinge;

fig. 4 is a schematic view of another structure of the axis of the mute hinge.

Fig. 5 is a schematic view of a second assembly structure of the mute hinge.

In the figure: 1. a master page; 2. sub pages; 3. a fixed core; 31. a base portion; 32. a rotating part; 321. a first rotating part; 322. a second rotating part; 4. pipe holes; 5. a locking cover; 6. a shaft sleeve; 7. needle roller bearings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present disclosure, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

Referring to fig. 1-2, a mute hinge comprises a main leaf 1 and a sub leaf 2, wherein a pipe hole 4 of the main leaf 1 and a pipe hole 4 of the sub leaf 2 are connected through a shaft core, the shaft core comprises two fixed cores 3, each fixed core comprises a base part 31 and a rotating part 32 which are coaxial, the base parts 31 are limited in the pipe hole of the main leaf 1 through locking covers 5, the rotating parts 32 extend to the pipe hole 4 of the sub leaf 2, the outer diameter of the rotating parts 32 is smaller than that of the base parts 31, the rotating parts 32 are sleeved with a hollow shaft sleeve 6, and the outer diameter of the rotating parts 32 is the same as that of the base parts 31 after the rotating parts 32 are sleeved with the shaft sleeve 6.

After the fixed core rotating part 32 is sleeved with the shaft sleeve 6, the gap between the sub-hinge hole 4 and the fixed core 3 is reduced, and the smoothness of the hinge rotating process is increased.

As shown in fig. 3, preferably, the rotating portion 32 is further divided into a first rotating portion 321 and a second rotating portion 322, the first rotating portion 321 is connected with the base portion 31, the outer diameter of the first rotating portion is smaller than that of the base portion 31, the second rotating portion 322 is connected with the first rotating portion 321, the outer diameter of the second rotating portion is smaller than that of the first rotating portion 321, and the through hole in the middle of the sleeve 6 is also in a step shape, and includes a large hole and a small hole, and the through hole is respectively matched with the first rotating portion 321 and the second rotating portion 322.

As shown in fig. 4, the rotating part 32 is preferably further divided into a first rotating part 321 and a second rotating part 322, wherein the first rotating part 321 is connected with the base part 31, the outer diameter of the first rotating part is smaller than that of the base part, the second rotating part 322 is connected with the first rotating part 321, the outer diameter of the second rotating part is smaller than that of the first rotating part 321, a through hole in the middle of the shaft sleeve 6 is a fixed aperture, the through hole is sleeved on the first rotating part 321, and the second rotating part is sleeved with the needle bearing 7.

The ball bearing 7 can further assist the rotation of the tube hole of the sub-page, and friction force is reduced.

According to the utility model, the shaft sleeve and the needle roller bearing are sleeved on the fixed core, so that the main page and the sub page keep good shaft center coaxiality on one hand, and keep flexible rotation on the other hand, no direct metal friction exists, and the mute effect is good.

The master page and the slave page of the utility model can be in two assembly structures, one is that the master page 1 and the slave page 2 are in a nested structure, and the slave page 2 is nested in a through hole of the master page 1. As shown in fig. 1.

Fig. 5 shows a second assembly structure of the present utility model, in which the parent sheet 1 and the child sheet 2 are not nested structures, but two identical strip-shaped plates, which are rotatably connected by the shaft core described in the present utility model, are all within the scope of the present utility model.

Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a mute hinge, includes master page (1) and sub-page (2), tube hole (4) of master page (1) and tube hole (4) of sub-page (2) are connected through the axle core, a serial communication port, the axle core includes two fixed cores (3), fixed core (3) including basic portion (31) and rotation portion (32) with the axle center, basic portion (31) are located the tube hole of master page through locking lid (5), rotation portion (32) extend to tube hole (4) of sub-page (2), just the external diameter of rotation portion (32) is less than basic portion (31), rotation portion (32) cup joint a hollow axle sleeve (6) to behind rotation portion (32) cup joint axle sleeve (6) with basic portion (31) external diameter the same.

2. The mute hinge according to claim 1, wherein the rotating portion (32) is further divided into a first rotating portion (321) and a second rotating portion (322), the first rotating portion (321) is connected with the base portion (31) and has a smaller outer diameter than the base portion (31), the second rotating portion (322) is connected with the first rotating portion (321) and has a smaller outer diameter than the first rotating portion (321), and the through hole in the middle of the sleeve (6) is also stepped and comprises a large hole and a small hole, which are respectively matched with the first rotating portion (321) and the second rotating portion (322).

3. The mute hinge according to claim 1, wherein the rotating part (32) is further divided into a first rotating part (321) and a second rotating part (322), the first rotating part (321) is connected with the base part (31) and has a smaller outer diameter than the base part (31), the second rotating part (322) is connected with the first rotating part (321) and has a smaller outer diameter than the first rotating part (321), the through hole in the middle of the shaft sleeve (6) is a fixed aperture, the through hole is sleeved on the first rotating part (321), and the second rotating part is sleeved with the needle bearing (7).

4. Mute hinge according to claim 1, characterized in that the parent page (1) and the child page (2) are of nested construction, the child page (2) being nested in a through hole of the parent page (1).

5. Mute hinge according to claim 1, characterized in that the parent leaf (1) and the child leaf (2) are two identical strip-shaped plates, which are connected in rotation by means of a shaft core.