Cross hinge

Abstract

The utility model provides a cross-shaped hinge which comprises a first mounting seat and a second mounting seat which are the same in structure and are symmetrically arranged, and a connecting rod assembly connected with the first mounting seat and the second mounting seat, so that the first mounting seat and the second mounting seat can relatively rotate and be folded by taking the connecting rod assembly as a rotating shaft; the buffering mechanism is used for buffering when the first mounting seat and the second mounting seat rotate relatively, the buffering mechanism is arranged on the first mounting seat, the extending end of the buffering mechanism is connected with the connecting rod assembly, and limiting sliding grooves are further formed in the first mounting seat and the second mounting seat; the two ends of the connecting rod assembly are located in the limiting sliding grooves and can move along the limiting sliding grooves, and therefore the first installation base and the second installation base can rotate and be folded conveniently. The cross-shaped hinge effectively overcomes the defects of an existing cross-shaped hinge, is simple in structure and convenient to machine, saves cost during storage and transfer, improves assembly speed during assembly and has a buffering function.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a cross hinge. Background Art

[0002] A hinge, also known as a hinge, is a mechanical device used to connect two solids and allow them to rotate relative to each other. Among them, the cross hinge is usually used as a hidden hinge. Due to its beautiful appearance and the existence of the hinge cannot be seen from the outside, it is widely used in many fields, such as folding tables, doors and windows, wardrobes, etc. in furniture. For example, it can also be used in fire well doors, pipeline well doors and other invisible doors.

[0003] At present, the cross hinges on the market have the following defects: 1) The structures on both sides of the cross hinge are not exactly the same, which brings certain difficulties to the processing and increases the processing cost; 2) Since the structures of the cross hinges during the processing are not exactly the same, it also adds certain costs to the storage, transfer and assembly, and different parts need to be classified and processed separately; 3) The structure is relatively complex, making the installation process not easy. For example, when installing a cross hinge with an irregular appearance structure, it is necessary to process an invisible groove on the installation surface that matches the external shape of the hinge, which brings difficulties and inconvenience to the installation; 4) There is no buffering function. When the panels are opened and closed, even the slightest force will cause the panels to collide. Utility Model Content

[0004] The utility model provides a cross hinge, which effectively solves the shortcomings of the existing cross hinge, has a simple structure, is easy to process, saves costs during storage and transfer, increases assembly speed during assembly, and has a buffering function.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cross hinge comprises a first mounting seat and a second mounting seat with the same structure and symmetrically arranged, and a connecting rod assembly connected to the first mounting seat and the second mounting seat, so that the first mounting seat and the second mounting seat can rotate relative to each other and overlap with the connecting rod assembly as the rotating axis. It also includes a buffer mechanism for obtaining a buffer when the first mounting seat and the second mounting seat rotate relative to each other. The buffer mechanism is arranged on the first mounting seat, and its extending end is connected to the connecting rod assembly. Limiting grooves are also arranged on the first mounting seat and the second mounting seat, and both ends of the connecting rod assembly are in the limiting grooves and can move along the limiting grooves, so as to facilitate the first mounting seat and the second mounting seat to rotate relative to each other and overlap.

[0007] Preferably, the connecting rod assembly includes a first connecting rod group, a second connecting rod group, a third connecting rod group, a first pin and a second pin. The first connecting rod group and the second connecting rod group are cross-arranged with each other, and the rear ends of the first connecting rod group and the second connecting rod group are both in the limiting slide groove. The first pin is respectively arranged on the first mounting seat and the second mounting seat, and is connected to the front ends of the first connecting rod group and the second connecting rod group, so that the front end of the first connecting rod group is connected to the second mounting seat and the front end of the second connecting rod group is connected to the first mounting seat. The second pin is arranged in the middle of the first connecting rod group and the second connecting rod group, so that the first connecting rod group and the second connecting rod group are connected to each other through the second pin. One end of the third connecting rod group is connected to the middle of the second pin, and the other end is connected to the first pin on the second mounting seat.

[0008] Preferably, the limiting slide groove is cross-shaped, and limiting blocks adapted to the limiting slide groove are arranged on the rear ends of the first connecting rod assembly and the second connecting rod assembly.

[0009] Preferably, the buffer mechanism includes a damping cylinder and a connecting block, one end of the connecting block is connected to the second pin shaft, and the other end is connected to the first pin shaft on the first mounting seat, the damping cylinder is arranged in the middle part of the first mounting seat, and its telescopic end is connected to the connecting block.

[0010] Preferably, grooves adapted to the second pin are symmetrically arranged on the first mounting seat and the second mounting seat, so that the second pin can be placed in the groove when the first mounting seat and the second mounting seat are overlapped with each other.

[0011] Preferably, both the first mounting seat and the second mounting seat are provided with mounting holes.

[0012] Compared with the prior art, the beneficial effect of the utility model is that the first mounting seat and the second mounting seat have the same structure and the first connecting rod group and the second connecting rod group have the same structure. It is very simple to process the above components and there is no need to process different parts separately. This saves costs during storage and transfer and increases the assembly speed. In addition, the buffer mechanism can provide buffering when the first mounting seat and the second mounting seat rotate relative to each other, effectively avoiding mutual collision of door panels, and has wide practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in the opened state;

[0014] Figure 2 This is a schematic diagram of the connecting rod assembly structure of the utility model. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] It should be noted that when a component / part is referred to as being "set on" another component / part, it may be directly set on the other component / part or there may also be an intermediate component / part. When a component / part is referred to as being "connected / coupled" to another component / part, it may be directly connected / coupled to the other component / part or there may be an intermediate component / part at the same time. The term "connection / coupling" as used herein may include electrical and / or mechanical physical connections / couplings. The term "includes / comprising" as used herein refers to the presence of a feature, step or component / part, but does not exclude the presence or addition of one or more other features, steps or components / parts. The term "and / or" as used herein includes any and all combinations of one or more relevant listed items.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0018] In addition, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0019] See also Figure 1 to Figure 2 As shown, a cross hinge includes a first mounting seat 1 and a second mounting seat 2 with the same structure and symmetrically arranged, and a connecting rod assembly 3 connected to the first mounting seat 1 and the second mounting seat 2, so that the first mounting seat 1 and the second mounting seat 2 can rotate and overlap relative to each other with the connecting rod assembly 3 as the rotating axis. It also includes a buffer mechanism 4 for obtaining a buffer when the first mounting seat 1 and the second mounting seat 2 rotate relative to each other. The buffer mechanism 4 is arranged on the first mounting seat 1, and its extending end is connected to the connecting rod assembly 3. A limiting slide groove 5 is also arranged on the first mounting seat 1 and the second mounting seat 2. Both ends of the connecting rod assembly 3 are in the limiting slide groove 5 and can move along the limiting slide groove 5, so as to facilitate the first mounting seat 1 and the second mounting seat 2 to rotate and overlap each other.

[0020] The connecting rod assembly 3 includes a first connecting rod group 31, a second connecting rod group 32, a third connecting rod group 33, a first pin shaft 34 and a second pin shaft 35. The first connecting rod group 31 and the second connecting rod group 32 are arranged crosswise with each other, and the rear ends of the first connecting rod group 31 and the second connecting rod group 32 are both in the limiting slide groove 5. The first pin shaft 34 is respectively arranged on the first mounting seat 1 and the second mounting seat 2, and is connected to the front ends of the first connecting rod group 31 and the second connecting rod group 32, so that the front end of the first connecting rod group 31 is connected to the second mounting seat 2 and the front end of the second connecting rod group 32 is connected to the first mounting seat 1. The second pin shaft 35 is arranged in the middle of the first connecting rod group 31 and the second connecting rod group 32, so that the first connecting rod group 31 and the second connecting rod group 32 are connected to each other through the second pin shaft 35. One end of the third connecting rod group 33 is connected to the middle of the second pin shaft 35, and the other end is connected to the first pin shaft 34 on the second mounting seat 2.

[0021] The limiting slide groove 5 is in a cross shape, and limiting blocks 6 adapted to the limiting slide groove 5 are arranged on the rear ends of the first connecting rod assembly 31 and the second connecting rod assembly 32 .

[0022] The buffer mechanism 4 includes a damping cylinder 41 and a connecting block 42. One end of the connecting block 42 is connected to the second pin shaft 35, and the other end is connected to the first pin shaft 34 on the first mounting seat 1. The damping cylinder 41 is arranged in the middle part of the first mounting seat 1, and its telescopic end is connected to the connecting block 42.

[0023] The first mounting seat 1 and the second mounting seat 2 are symmetrically provided with grooves 7 adapted to the second pin shaft 35, so that when the first mounting seat 1 and the second mounting seat 2 are stacked on each other, the second pin shaft 35 can be placed in the groove 7. The first mounting seat 1 and the second mounting seat 2 are both provided with mounting holes 8, and can be connected to an object through mounting holes 9.

[0024] The first mounting seat 1 and the second mounting seat 2 of the utility model have the same structure, and the first connecting rod group 31 and the second connecting rod group 32 also have the same structure. It is very simple to process the above parts, and there is no need to process different parts separately, which saves costs during storage and transfer, and also increases the assembly speed during assembly. In addition, the buffer mechanism 4 can obtain buffering when the first mounting seat 1 and the second mounting seat 2 rotate relative to each other, effectively avoiding mutual collision of door panels, and has wide practicality.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cross hinge, comprising a first mounting seat and a second mounting seat of the same structure and symmetrically arranged with each other, and a connecting rod assembly connected to the first mounting seat and the second mounting seat, so that the first mounting seat and the second mounting seat can rotate relative to each other and overlap with the connecting rod assembly as a rotating axis, characterized in that: It also includes a buffer mechanism for obtaining a buffer when the first mounting seat and the second mounting seat rotate relative to each other. The buffer mechanism is arranged on the first mounting seat, and its extended end is connected to the connecting rod assembly. Limiting grooves are also arranged on the first mounting seat and the second mounting seat. Both ends of the connecting rod assembly are in the limiting grooves and can move along the limiting grooves, so as to facilitate the mutual rotation and overlap of the first mounting seat and the second mounting seat.

2. The cross hinge according to claim 1, characterized in that: The connecting rod assembly includes a first connecting rod group, a second connecting rod group, a third connecting rod group, a first pin and a second pin. The first connecting rod group and the second connecting rod group are cross-arranged with each other, and the rear ends of the first connecting rod group and the second connecting rod group are both in the limiting sliding groove. The first pin is respectively arranged on the first mounting seat and the second mounting seat, and is connected to the front ends of the first connecting rod group and the second connecting rod group, so that the front end of the first connecting rod group is connected to the second mounting seat and the front end of the second connecting rod group is connected to the first mounting seat. The second pin is arranged in the middle of the first connecting rod group and the second connecting rod group, so that the first connecting rod group and the second connecting rod group are connected to each other through the second pin. One end of the third connecting rod group is connected to the middle of the second pin, and the other end is connected to the first pin on the second mounting seat.

3. The cross hinge according to claim 2, characterized in that: The limiting sliding groove is in a cross shape, and limiting blocks adapted to the limiting sliding groove are arranged on the rear ends of the first connecting rod assembly and the second connecting rod assembly.

4. The cross hinge according to claim 2, characterized in that: The buffer mechanism includes a damping cylinder and a connecting block, one end of the connecting block is connected to the second pin shaft, and the other end is connected to the first pin shaft on the first mounting seat. The damping cylinder is arranged in the middle part of the first mounting seat, and its telescopic end is connected to the connecting block.

5. The cross hinge according to claim 2, characterized in that: Grooves adapted to the second pin shaft are symmetrically arranged on the first mounting seat and the second mounting seat, so that the second pin shaft can be placed in the groove when the first mounting seat and the second mounting seat are overlapped with each other.

6. The cross hinge according to claim 5, characterized in that: The first mounting seat and the second mounting seat are both provided with mounting holes.

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