Hinge with buffering function

Abstract

This utility model relates to the field of hinge technology and discloses a hinge with a buffer function. The hinge adopts a top-post sliding and guiding closing buffer structure. A ball-head top post is installed inside the top post mounting hole on the inner side of the inner edge of the movable hinge by a spring. An annular guide groove is provided on the inner side of the fixed hinge. The ball-head top post is movably installed on the inner side of the movable hinge by a spring. During operation, the end of the ball-head top post slides and is supported on the inner side of the annular guide groove. With the help of the buffer protrusion provided on the inner edge of the annular guide groove, when the hinge reaches the closing stop point, the elastic retraction of the ball-head top post, guided by the protrusion, absorbs the closing impact and achieves closing buffer protection for the hinge. The structure is simple and the operation is reliable. After closing, the ball-head top post end engages with the inner edge of the buffer protrusion in the annular guide groove, which can temporarily flip and limit the hinge after closing, avoiding accidental closing caused by external force, and greatly improving the working reliability of the hinge.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically a hinge with a buffer function. Background Technology

[0002] A hinge, also known as a hinge plate, is a mechanical device used to connect two solid objects and allow them to rotate relative to each other. A hinge mainly consists of two movable plates, which are flipped and closed by the hinge in the middle. It is widely used in the connection and installation of cabinet doors, windows, doors and so on.

[0003] Existing hinges are simple double-leaf structures without buffering and limiting mechanisms. When a large force is applied during closing, the lack of closing buffer can cause the door to collide violently. Furthermore, the lack of limiting mechanisms makes the open door prone to accidental closure, which is very inconvenient to use. Therefore, a hinge with a buffering function is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a hinge with a buffer function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hinge with a buffer function, comprising a fixed hinge, a movable hinge, a mounting pin, and a top column mechanism, wherein the fixed hinge and the movable hinge are hingedly mounted and supported by the mounting pin;

[0006] The top post mechanism is installed on the inner edge of the movable hinge. The top post mechanism includes a ball-head top post and a spring. The ball-head top post is movably installed on the inner side of the movable hinge by the spring. The inner side of the fixed hinge is provided with an annular guide groove. The end of the ball-head top post is slidably supported and installed with the groove surface of the annular guide groove. The inner side of the annular guide groove is provided with a buffer protrusion.

[0007] Preferably, both the fixed hinge and the movable hinge are fixedly installed with hinge bearings on their mating sides, and the hinge bearings on the fixed hinge and the movable hinge sides are concentrically aligned.

[0008] Preferably, the end shaft of the mounting pin is inserted into the pin hole in the middle of the hinged shaft seat, and the lower part of the mounting pin is provided with an annular groove, and a limit ring is fitted and snapped into the inner side of the annular groove.

[0009] Preferably, both the fixed hinge and the movable hinge have bolt mounting holes through their middle sections, and mounting bolts are installed inside the bolt mounting holes.

[0010] Preferably, the inner side of the aforementioned movable hinge is provided with a top post mounting hole, and the ball-head top post is slidably fitted into the inner side of the top post mounting hole.

[0011] Preferably, the front end of the spring is fixedly installed to the rear end of the ball-head top post, and the rear end of the spring is installed in contact with the inner side of the mounting hole of the top post.

[0012] Preferably, the annular guide groove is formed on the outer periphery of the hinge bearing on the fixed hinge side, the front end of the ball head post is spherical, and the ball head post is slidably supported and installed on the groove side of the annular guide groove.

[0013] Preferably, the aforementioned buffer protrusion is fixedly disposed on the inner side of the annular guide groove, and both sides of the buffer protrusion are provided with inclined arc surfaces. After closing, the ball head of the ball head top post is fitted and snapped into the arc surface of the inner side of the buffer protrusion.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0015] This hinge adopts a top-column sliding guide-type closing buffer structure. A ball-head top column is installed inside the top column mounting hole on the inner side of the movable hinge by a spring. During operation, the end of the ball-head top column slides and is supported on the inner side of the annular guide groove. In conjunction with the buffer protrusion set on the inner side of the annular guide groove, when the hinge reaches the closing stop point, the elastic retraction of the ball-head top column, guided by the protrusion, absorbs the closing impact and achieves closing buffer protection for the hinge. The structure is simple and the operation is reliable. After closing, the ball-head top column end engages with the inner side of the buffer protrusion in the annular guide groove, which can temporarily flip and limit the hinge after closing, avoiding accidental closing caused by external force, and greatly improving the working reliability of the hinge. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall installation upper structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall installation lower structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall disassembled front three-dimensional structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall disassembled three-dimensional structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the working installation structure of the ball-head top column of this utility model.

[0022] Explanation of reference numerals in the attached diagram: 1. Fixed hinge; 2. Movable hinge; 3. Mounting pin; 4. Ball head top post; 5. Spring; 6. Annular guide groove; 7. Buffer protrusion; 8. Bolt mounting hole; 9. Top post mounting hole; 10. Limiting retaining ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0025] Example

[0026] Please see Figure 1-5 This utility model provides a technical solution: a hinge with a buffer function, including a fixed hinge 1, a movable hinge 2, a mounting pin 3, and a top post mechanism. The fixed hinge 1 and the movable hinge 2 are hinged and supported by the mounting pin 3. Specifically, see attached... Figure 1 As shown, to facilitate hinged installation, hinge bearings are fixedly installed on the mating sides of both the fixed hinge 1 and the movable hinge 2. The hinge bearings on the fixed hinge 1 and the movable hinge 2 sides are concentrically aligned. The mounting pin 3 is used to fix the hinged mating installation of hinge 1 and the movable hinge 2, as shown in the attached figure. Figure 3 As shown, the end shaft of the mounting pin 3 is inserted into the pin hole in the middle of the hinged shaft seat. In order to lock and limit the mounting pin 3 after installation, an annular groove is provided at the lower part of the mounting pin 3. The inner side of the annular groove is fitted and locked with a limiting ring 10. The limiting ring 10 can prevent the mounting pin 3 from moving up and falling out after installation.

[0027] To facilitate the installation of the fixed hinge 1 and the movable hinge 2, bolt mounting holes 8 are provided through the middle of both the fixed hinge 1 and the movable hinge 2. Mounting bolts are installed inside the bolt mounting holes 8. The fixed hinge 1 and the movable hinge 2 are fastened to the upper part of the door frame and the door body respectively by the mounting bolts.

[0028] The top post mechanism is installed on the inner edge of the movable hinge 2. The top post mechanism includes a ball-head top post 4 and a spring 5. The ball-head top post 4 is movably installed on the inner side of the movable hinge 2 via the spring 5. See attached diagram for details. Figure 5 As shown, to facilitate the connection and installation of the ball-head top post 4, a top post mounting hole 9 is provided on the inner side of the movable hinge 2. The ball-head top post 4 is slidably fitted into the inner side of the top post mounting hole 9. The front end of the spring 5 is fixedly installed with the rear end of the ball-head top post 4, and the rear end of the spring 5 abuts against the inner side of the top post mounting hole 9, which can provide elastic support for the installation of the ball-head top post 4. In order to realize the installation guidance of the end of the ball-head top post 4, as shown in the attached figure... Figure 3 As shown, an annular guide groove 6 is provided on the inner side of the fixed hinge 1. The end of the ball head post 4 is slidably supported and installed with the groove surface of the annular guide groove 6. The annular guide groove 6 is opened on the outer periphery of the hinge shaft seat on the side of the fixed hinge 1. In order to reduce sliding friction, the front end of the ball head post 4 is spherical. The ball head of the ball head post 4 is slidably supported and installed with the groove surface of the annular guide groove 6. After installation, solid lubricating grease needs to be added to the annular guide groove 6. In order to achieve closed buffering, a buffer protrusion 7 is provided on the inner side of the annular guide groove 6. The buffer protrusion 7 is fixedly installed on the inner side of the annular guide groove 6. Both sides of the protrusion 7 are inclined arc surfaces. During operation, the end of the ball head post 4 is slidably supported on the inner side of the annular guide groove 6. In conjunction with the buffer protrusion 7 set on the inner edge of the annular guide groove 6, when the hinge reaches the closing stop point, the elastic retraction of the ball head post 4, guided by the convex seat, can absorb the closing impact and achieve closing buffer protection for the hinge. The structure is simple and the operation is reliable. After closing, the ball head of the ball head post 4 is fitted and locked with the arc surface of the inner edge of the buffer protrusion 7, which can realize the temporary flipping limit of the hinge after closing, which can avoid accidental closing caused by external force, and greatly improve the working reliability of the hinge.

[0029] Working principle or structural principle: During installation, the fixed hinge 1 and the movable hinge 2 are installed on the upper part of the door frame and door panel respectively by bolt tightening. After installing the ball head post 4, the fixed hinge 1 and the movable hinge 2 are connected and installed by the insertion and limiting of the installation pin 3. During operation, when the door is closed, the end of the ball head post 4 slides against the inner side of the annular guide groove 6 under the push of the spring 5. When the door flips to the closed stop position, the end of the ball head post 4 contacts and supports the inclined arc surface of the buffer protrusion 7. The ball head post 4 retracts and compresses the spring 5 through the push of the buffer protrusion 7. The elastic retraction of the ball head post 4 can absorb the closing impact and realize the closing buffer protection of the hinge. After closing, the end of the ball head post 4 is engaged with the inner edge of the buffer protrusion 7 in the annular guide groove 6, which can realize the temporary flipping limit of the hinge after closing, and avoid the door from being accidentally closed due to external force.

[0030] In summary, this hinge adopts a top-column sliding guide-type closing buffer structure. A ball-head top column 4 is installed inside the top column mounting hole 9 on the inner side of the movable hinge 2 via a spring 5. During operation, the end of the ball-head top column 4 slides and supports the inner side of the annular guide groove 6. In conjunction with the buffer protrusion 7 located on the inner edge of the annular guide groove 6, when the hinge reaches its closing stop, the elastic retraction of the ball-head top column 4, guided by the protrusion, absorbs the closing impact, achieving closing buffer protection for the hinge. The structure is simple and the operation is reliable. Furthermore, after closing, the ball-head top column 4 engages with the inner edge of the buffer protrusion 7 in the annular guide groove 6, enabling temporary flipping and limiting of the hinge after closing. This avoids accidental closing due to external force, greatly improving the hinge's operational reliability.

[0031] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A hinge with a buffer function, comprising a fixed hinge (1), a movable hinge (2), a mounting pin (3), and a top post mechanism, characterized in that, The fixed hinge (1) and the movable hinge (2) are hinged together and supported by a mounting pin (3); The top post mechanism is installed on the inner side of the movable hinge (2). The top post mechanism includes a ball-head top post (4) and a spring (5). The ball-head top post (4) is movably installed on the inner side of the movable hinge (2) by the spring (5). The inner side of the fixed hinge (1) is provided with an annular guide groove (6). The end of the ball-head top post (4) is slidably supported and installed with the groove surface of the annular guide groove (6). The inner side of the annular guide groove (6) is provided with a buffer protrusion (7).

2. A hinge with a buffer function according to claim 1, characterized in that, The fixed hinge (1) and the movable hinge (2) are both fixedly installed with hinge shaft seats on their mating sides, and the hinge shaft seats on the fixed hinge (1) and the movable hinge (2) sides are installed in a concentric alignment.

3. A hinge with a buffer function according to claim 2, characterized in that, The end shaft of the mounting pin (3) is inserted into the pin hole provided in the middle of the hinged shaft seat. The lower part of the mounting pin (3) is provided with an annular groove, and the inner side of the annular groove is fitted with a limiting ring (10).

4. A hinge with a buffer function according to claim 3, characterized in that, Both the fixed hinge (1) and the movable hinge (2) have bolt mounting holes (8) through their middle sections, and mounting bolts are installed inside the bolt mounting holes (8).

5. A hinge with a buffer function according to claim 1, characterized in that, The inner side of the movable hinge (2) is provided with a top post mounting hole (9), and the ball head top post (4) is slidably fitted into the inner side of the top post mounting hole (9).

6. A hinge with a buffer function according to claim 5, characterized in that, The front end of the spring (5) is fixedly installed with the rear part of the ball head top post (4), and the rear end of the spring (5) is installed in contact with the inner side of the top post mounting hole (9).

7. A hinge with a buffer function according to claim 6, characterized in that, The annular guide groove (6) is opened on the outer periphery of the hinge seat on the side of the fixed hinge (1). The front end of the ball head top post (4) is spherical. The ball head of the ball head top post (4) is slidably supported and installed on the groove side of the annular guide groove (6).

8. A hinge with a buffer function according to claim 7, characterized in that, The buffer protrusion (7) is fixedly set on the inner side of the annular guide groove (6). Both sides of the buffer protrusion (7) are inclined arc surfaces. After closing, the ball head of the ball head top post (4) is fitted and snapped into the arc surface of the inner side of the buffer protrusion (7).

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