Automatic closing type hinge device

Abstract

The utility model relates to the technical field of hinges, in particular to an automatic closing type hinge device which comprises a first frame body, a second frame body rotationally arranged on the first frame body, a shaft center arranged between the first frame body and the second frame body, a first clamping piece arranged on the first frame body and a second clamping piece arranged on the second frame body. The first clamping piece is provided with a groove, the second clamping piece is provided with a protruding block, and the protruding block stretches into the groove in a protruding mode so that the second frame body can be clamped and fixed to the first frame body. The hinge is compact in structure and reasonable in design, the hinge can be automatically closed when rotating to a specific angle through matched use of the protruding blocks and the grooves, the contact area is large, and abrasion is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to an automatic closing hinge device. Background Technology

[0002] With the continuous advancement of technology, hinges are showing a trend towards diversification and specialization. As a mechanical structure, a hinge is used to connect two objects, allowing them to rotate within a limited angle range under the action of torque. Therefore, hinges are widely used in innovative applications in high-end electronic products. Existing hinges usually rely on built-in springs to achieve the automatic closing function, so that the hinge automatically returns to the default closed position after the external force is released. However, springs are fragile components. During use, they are subjected to periodic compression and tension, and are prone to losing elasticity due to wear or aging, or even causing accidental breakage, affecting their working performance. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing an automatic closing hinge device with a compact structure and reasonable design. Through the cooperation of protrusions and grooves, the hinge can be automatically closed when rotated to a specific angle, with a large contact area and is not easily worn.

[0004] To achieve the above objectives, the present invention provides an automatic closing hinge device, comprising a first frame, a second frame rotatably disposed on the first frame, a shaft disposed between the first frame and the second frame, a first engaging member disposed on the first frame, and a second engaging member disposed on the second frame. The first engaging member is provided with a groove, and the second engaging member is provided with a protrusion. The protrusion extends into the groove so that the second frame is engaged and fixed to the first frame.

[0005] Preferably, the first engaging member is provided with a sliding groove, and there are multiple sliding grooves and multiple recesses. The multiple sliding grooves and multiple recesses are arranged alternately around the central axis of the first engaging member. The first engaging member is provided with a first engaging foot, and there are multiple first engaging feet arranged around the circumference of the first engaging member. The first frame is provided with a first engaging groove, and the first engaging feet are accommodated in the first engaging groove.

[0006] Preferably, the second locking member is provided with a second locking foot, and multiple second locking feet are provided, which are arranged around the circumference of the second locking member. The second frame is provided with a second locking groove, and the second locking feet are accommodated in the second locking groove.

[0007] Preferably, a positioning frame is provided on the side of the second frame away from the first frame. The positioning frame is provided with a limiting piece, the limiting piece is provided with a spring plate assembly, and the spring plate assembly is provided with multiple elastic plates for adjusting its torque and adjusting nuts for adjusting the extension and retraction of the multiple elastic plates.

[0008] Preferably, the positioning frame is provided with positioning feet, and there are multiple positioning feet arranged around the circumference of the positioning frame. The second frame is provided with positioning grooves, and the positioning feet are accommodated in the positioning grooves.

[0009] Preferably, the first frame has a first through hole in the middle and the second frame has a second through hole in the middle, and the central axes of the first through hole, the second through hole and the shaft coincide.

[0010] Preferably, the first frame is provided with a first mounting hole at both ends, and the second frame is provided with a second mounting hole at both ends.

[0011] The advantages of this utility model are: compact structure and reasonable design. Through the cooperation of protrusions and grooves, the hinge can be automatically closed when rotated to a specific angle. The contact area is large and not easy to wear. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is an exploded structural diagram of the present invention.

[0014] Figure 3 This is a schematic diagram of the second frame structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the first snap-fit ​​component of this utility model.

[0016] Figure 5 This is a schematic diagram of the second snap-fit ​​component of this utility model.

[0017] The reference numerals in the figures include:

[0018] 1—First frame; 11—First locking groove; 12—First through hole

[0019] 13 - First mounting hole

[0020] 2—Second frame 21—Second engagement slot 22—Positioning slot

[0021] 23 – Second through hole; 24 – Second mounting hole

[0022] 3 - Axis

[0023] 4—First card assembly; 41—Groove; 42—Sliding groove

[0024] 43 - First card fits the foot

[0025] 5 - Second clip assembly; 51 - Protrusion; 52 - Second clip fitting.

[0026] 6—Positioning bracket; 61—Limiting piece; 62—Positioning foot

[0027] 7—Spring assembly; 71—Elastic piece; 72—Adjusting nut. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings.

[0029] like Figures 1 to 5 As shown, the present invention provides an automatic closing hinge device, comprising a first frame 1, a second frame 2 rotatably disposed on the first frame 1, a shaft 3 disposed between the first frame 1 and the second frame 2, a first engaging member 4 disposed on the first frame 1, and a second engaging member 5 disposed on the second frame 2. The first engaging member 4 is provided with a groove 41, and the second engaging member 5 is provided with a protrusion 51. The protrusion 51 protrudes into the groove 41 so that the second frame 2 is engaged and fixed to the first frame 1.

[0030] In use, the first frame 1 and the second frame 2 are respectively connected to external working parts. The shaft 3 is located between the first frame 1 and the second frame 2. The first engaging member 4 is located at the top of the first frame 1, and the second engaging member 5 is located at the bottom of the second frame 2. When the external working part drives the second frame 2 to rotate around the shaft 3, the second engaging member 5 protrudes into the groove 41 through the protrusion 51, causing the protrusion 51 and the groove 41 to engage with each other. This automatically closes the second frame 2 at a specific angle to the first frame 1. Subsequently, only a slight force needs to be applied to the second frame 2 to cause it to rotate relative to the first frame 1, allowing the protrusion 51 to completely disengage from the groove 41, thus realizing the rotational change of the second frame 2 relative to the first frame 1. This utility model has a compact structure and reasonable design. Through the cooperation of the protrusion 51 and the groove 41, the hinge rotates to a specific angle and automatically closes, with a large contact area and is not easily worn.

[0031] In this embodiment, the first engaging member 4 is provided with a sliding groove 42, and multiple sliding grooves 42 and multiple grooves 41 are provided. The multiple sliding grooves 42 and multiple grooves 41 are arranged alternately around the central axis of the first engaging member 4. The first engaging member 4 is provided with a first engaging foot 43, and multiple first engaging feet 43 are provided. The multiple first engaging feet 43 are arranged around the circumference of the first engaging member 4. The first frame 1 is provided with a first engaging groove 11, and the first engaging feet 43 are accommodated in the first engaging groove 11. Specifically, preferably, four sliding grooves 42 and four recesses 41 are provided. The four sliding grooves 42 and four recesses 41 are staggered around the first engaging member 4, so that the protrusion 51 slides freely under the guidance of the sliding grooves 42 until the protrusion 51 engages with the recesses 41 to fix the position between the second engaging member 5 and the first engaging member 4. Preferably, four first engaging feet 43 and four first engaging slots 11 are provided. The four first engaging feet 43 are arranged around the circumference of the first engaging member 4, and the four first engaging slots 11 are arranged around the circumference of the first frame 1, so that the four first engaging feet 43 can be respectively engaged in the four first engaging slots 11, thereby realizing the installation and fixation of the first engaging member 4 on the first frame 1.

[0032] In this embodiment, the second engaging member 5 is provided with a second engaging foot 52. Multiple second engaging feet 52 are provided, arranged circumferentially around the second engaging member 5. The second frame 2 is provided with a second engaging groove 21, in which the second engaging feet 52 are accommodated. Specifically, preferably, four second engaging feet 52 and four second engaging grooves 21 are provided. The four second engaging feet 52 are arranged circumferentially around the second engaging member 5, and the four second engaging grooves 21 are arranged circumferentially around the second frame 2, facilitating the engagement of the four second engaging feet 52 into the four second engaging grooves 21 respectively, thereby fixing the second engaging member 5 onto the second frame 2.

[0033] In this embodiment, a positioning frame 6 is provided on the side of the second frame 2 away from the first frame 1. The positioning frame 6 is provided with a limiting piece 61, and the limiting piece 61 is provided with a spring plate assembly 7. The spring plate assembly 7 is provided with multiple elastic plates 71 for adjusting its torque and an adjusting nut 72 for adjusting the extension and retraction of the multiple elastic plates 71. Specifically, the positioning frame 6 is provided on the top of the second frame 2. The positioning frame 6 is connected to the spring plate assembly 7 through the limiting piece 61. The spring plate assembly 7 is sleeved on the outside of the shaft 3. By controlling the locking force of the adjusting nut 72, the extension and retraction of the multiple elastic plates 71 can be adjusted, thereby adjusting the torque tightness of the second frame 2 relative to the first frame 1. The adjustment is simple and convenient.

[0034] In this embodiment, the positioning frame 6 is provided with positioning feet 62, and multiple positioning feet 62 are provided, arranged around the circumference of the positioning frame 6. The second frame 2 is provided with positioning grooves 22, and the positioning feet 62 are accommodated in the positioning grooves 22. Specifically, preferably, four positioning feet 62 and four positioning grooves 22 are provided. The four positioning feet 62 are arranged around the circumference of the positioning frame 6, and the four positioning grooves 22 are arranged around the circumference of the second frame 2, so that the four positioning feet 62 can be respectively engaged in the four positioning grooves 22, thereby realizing the installation and fixation of the positioning frame 6 on the second frame 2.

[0035] In this embodiment, the first frame 1 has a first through hole 12 in its middle, and the second frame 2 has a second through hole 23 in its middle. The central axes of the first through hole 12, the second through hole 23, and the shaft 3 coincide. Specifically, the coincidence of the central axes of the first through hole 12, the second through hole 23, and the shaft 3 allows the shaft 3 to pass through the first through hole 12 and the second through hole 23 in sequence, achieving accurate alignment between the three components, ensuring coaxiality of each component, guaranteeing the positional accuracy of each component, and improving the assembly yield.

[0036] In this embodiment, the first frame 1 has first mounting holes 13 at both ends, and the second frame 2 has second mounting holes 24 at both ends. Specifically, external screws are used to pass through the first mounting holes 13 and connect to the external working parts, thereby fixing the first frame 1 to the external working parts. Then, external screws are used to pass through the second mounting holes 24 and connect to the external working parts, thereby fixing the second frame 2 to the external working parts. The installation is simple and convenient.

[0037] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An automatic closure hinge device, characterized by: The first frame, the second frame, the shaft, the first clamping member and the second clamping member are provided, the first clamping member is provided with a groove, the second clamping member is provided with a protrusion, the protrusion protrudes into the groove, so that the second frame is clamped and fixed on the first frame.

2. An automatic closure hinge device according to claim 1, wherein: The first clamping member is provided with a sliding groove, the sliding groove is provided with a plurality of grooves, the plurality of sliding grooves and the plurality of grooves are staggered around the central axis of the first clamping member, the first clamping member is provided with a first clamping foot, the first clamping foot is provided with a plurality of first clamping feet, the plurality of first clamping feet are arranged around the circumference of the first clamping member, the first frame is provided with a first clamping groove, and the first clamping foot is arranged in the first clamping groove.

3. An automatic closure hinge device according to claim 1, wherein: The second clamping member is provided with a second clamping foot, the second clamping foot is provided with a plurality of second clamping feet, the plurality of second clamping feet are arranged around the circumference of the second clamping member, the second frame is provided with a second clamping groove, and the second clamping foot is arranged in the second clamping groove.

4. An automatic closure hinge device according to claim 1, wherein: The second frame is provided with a positioning frame away from the first frame, the positioning frame is provided with a limiting sheet, the limiting sheet is provided with an elastic sheet assembly, the elastic sheet assembly is provided with a plurality of elastic sheets for adjusting the torsion and an adjusting nut for adjusting the extension and contraction amount of the plurality of elastic sheets.

5. An automatic closure hinge device according to claim 4, wherein: The positioning frame is provided with a positioning foot, the positioning foot is provided with a plurality of positioning feet, the plurality of positioning feet are arranged around the circumference of the positioning frame, the second frame is provided with a positioning groove, and the positioning foot is arranged in the positioning groove.

6. An automatic closure hinge device according to claim 1, wherein: The middle part of the first frame is provided with a first through hole, the middle part of the second frame is provided with a second through hole, and the central axes of the first through hole, the second through hole and the shaft coincide.

7. An automatic closure hinge device according to claim 6, wherein: Both ends of the first frame are provided with first mounting holes, and both ends of the second frame are provided with second mounting holes.

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