Novel screen folding hinge structure

Abstract

The utility model provides a novel screen folding hinge structure which comprises a bottom plate arranged between two sets of machine bodies, fixing bases are fixedly installed at the two ends of the top of the bottom plate, two sets of rotating shafts are rotatably installed between the fixing bases in parallel, and connecting plates are fixedly installed on one sides of the rotating shafts. The other sides of the connecting plates are respectively connected with the machine body through fasteners; toothed rotating blocks are fixedly mounted at the other ends of the rotating shafts, and a pair of gear shafts is engaged between the two sets of toothed rotating blocks; a sliding block is sleeved between the two groups of rotating shafts; a plurality of groups of damping fins II are sleeved between the two groups of rotating shafts, and damping fins I and springs are sleeved on the outer sides of the rotating shafts close to the positions between the nuts and the sliding blocks. Through the design of the double rotating shafts, after the screen is folded, the screen can form a water drop shape in a folding area, the screen can be automatically smooth in the repeated folding and unfolding process, creases are prevented from being formed in the folding area, the screen attractiveness is guaranteed, and meanwhile the risk that the screen is folded and broken is eliminated.

Description

Technical Field

[0001] The utility model belongs to the technical field of folding screen hinges, and more specifically, particularly relates to a novel screen folding hinge structure. Background Art

[0002] At present, the trend of pursuing large screens in the mobile phone market is very obvious. However, large screens are not convenient to hold and carry. Therefore, it is a very efficient and beautiful way to make large-screen mobile phones smaller through folding and then expand them when needed. Thus, folding screen mobile phones and potentially extended large tablets in the prior art have emerged.

[0003] After folding the screens of existing folding screen mobile phones and tablets thousands of times, obvious creases are likely to remain in the folding area, affecting the aesthetics and also posing a risk of screen breakage at the folding position. Therefore, in view of this, research and improvement are carried out on the existing structures and deficiencies to provide a novel screen folding hinge structure. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a novel screen folding hinge structure, which is achieved by the following specific technical means:

[0005] A novel screen folding hinge structure includes a bottom plate arranged between two groups of bodies. Both ends of the top of the bottom plate are fixedly installed with fixed seats. Two groups of rotating shafts are rotatably installed in parallel between the fixed seats. One side of each rotating shaft is fixedly installed with a connecting plate, and the other sides of the connecting plates are respectively connected to the bodies through fasteners. External threads are arranged on the outer sides of one ends of the rotating shafts, and nuts are connected through the external threads. Tooth-shaped rotating blocks are fixedly installed at the other ends of the rotating shafts. A pair of gear shafts are meshed between the two tooth-shaped rotating blocks, and one end of the gear shaft is rotatably connected to the adjacent fixed seat. A slider is sleeved between the two rotating shafts, and one side of the slider is in close contact with the tooth-shaped rotating block. Multiple damping sheets II are sleeved between the two rotating shafts. Damping sheet I and a spring are sleeved on the outer side of the rotating shaft between the nut and the slider. Multiple damping sheets I are provided and are installed at intervals between adjacent two damping sheets II.

[0006] Further, connection grooves are arranged at both ends of each rotating shaft. Insertion plates connected to the connection grooves are arranged at both ends of one side of the connecting plate. The insertion plates and the connection grooves are connected through fixing pins.

[0007] Further, an arc surface is arranged on one end side of the tooth-shaped rotating block, and driving teeth capable of meshing with the gear shaft are arranged on the arc surface. Two driving inclined surfaces are arranged at the other end of the tooth-shaped rotating block. Two contact surfaces matching the driving inclined surfaces are arranged on the side of the slider facing the tooth-shaped rotating block.

[0008] Further, parallel planes are provided on both the upper and lower sides of the middle section of the rotating shaft; a connecting through groove that contacts the arc surface and the plane of the rotating shaft is provided at the center of the toothed rotating block, and the toothed rotating block is fixedly connected to the rotating shaft through a fixing pin; two groups of connecting round holes are provided on the slider, and the connecting round holes are slidably connected to the rotating shaft.

[0009] Further, a through groove is provided at the center of the first damping piece, and the through groove and the middle section of the rotating shaft are in clearance fit.

[0010] Further, gaskets are installed at both ends of the rotating shaft close to the spring, and the gaskets are rotatably connected to the rotating shaft.

[0011] Further, the vertical cross-sectional dimensions of the fixed seat and the second damping piece are the same, and arc-shaped surfaces that are recessed inward are provided at both the upper and lower ends of the middle parts of the fixed seat and the second damping piece.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Through the design of the double rotating shaft, the utility model can achieve that after the screen is folded, the screen can form a water droplet shape in the folding area, and the screen can be automatically smooth during the repeated folding and unfolding process, avoiding the formation of creases in the folding area, ensuring the beauty of the screen and eliminating the risk of screen folding and breaking.

[0014] 2. By providing external threads on the rotating shaft and using the external threads to connect nuts, the utility model can adjust the clamping force between the first damping piece and the second damping piece by using the nuts during use, so that the force value of the hinge can be adjusted and output within a certain range. By changing the output force value, the screen can be freely closed or hover at any angle. At the same time, by adjusting the output of different force values, screens of different sizes and weights can be adapted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall schematic diagram of the folding hinge structure of the utility model.

[0016] Figure 2 is the exploded schematic diagram of the folding hinge of the utility model.

[0017] Figure 3 is the schematic diagram of the partial structure disassembly of the utility model.

[0018] Figure 4 is the schematic diagram of the separation of the toothed rotating block and the slider of the utility model Figure 1 .

[0019] Figure 5 is the schematic diagram of the separation of the toothed rotating block and the slider of the utility model Figure 2 .

[0020] Figure 6Schematic diagram of the installation of the folding hinge structure of the present utility model Figure 1 。

[0021] Figure 7 Schematic diagram of the installation of the folding hinge structure of the present utility model Figure 2 。

[0022] Figure 8 Schematic diagram of the unfolded folding hinge structure of the present utility model.

[0023] Figure 9 Schematic diagram of the closed folding hinge structure of the present utility model.

[0024] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0025] 1. Base plate; 2. Fixed seat; 3. Rotating shaft; 4. Toothed rotating block; 5. Nut; 6. First damping sheet; 7. Spring; 8. Second damping sheet; 9. Slide block; 10. Gear shaft; 11. Connecting plate; 12. Gasket;

[0026] 301. External thread; 302. Connecting groove; 401. Connecting through groove; 402. Driving tooth; 403. Driving inclined surface; 901. Connecting round hole; 902. Contact surface;

[0027] 100. Body; 200. Screen. Detailed implementation manners

[0028] The following further describes in detail the implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0029] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Embodiment

[0031] As shown in the Figure 1 to the Figure 9 accompanying drawings:

[0032] The present utility model provides a novel screen folding hinge structure, including a bottom plate 1 arranged between two groups of bodies 100. Both ends of the top of the bottom plate 1 are fixedly installed with fixed seats 2. Two groups of rotating shafts 3 are rotatably installed in parallel between the fixed seats 2. A connecting plate 11 is fixedly installed on one side of each of the rotating shafts 3, and the other sides of the connecting plates 11 are respectively connected to the body 100 through fasteners; external threads 301 are provided on the outer sides of one ends of the rotating shafts 3, and nuts 5 are connected through the external threads 301; toothed rotating blocks 4 are fixedly installed at the other ends of the rotating shafts 3. A pair of gear shafts 10 are engaged between the two toothed rotating blocks 4, and one end of the gear shaft 10 is rotatably connected to the adjacent fixed seat 2; a slider 9 is sleeved between the two rotating shafts 3, and one side of the slider 9 is in close contact with the toothed rotating block 4; multiple damping sheets II 8 are sleeved between the two rotating shafts 3, and damping sheet I 6 and a spring 7 are sleeved on the outer side of the rotating shaft 3 between the nut 5 and the slider 9. Multiple damping sheets I 6 are provided and are installed at intervals between adjacent two damping sheets II 8.

[0033] Wherein, connection grooves 302 are provided at both ends of the rotating shaft 3. Plug plates connected to the connection grooves 302 are provided at both ends of one side of the connecting plate 11. The plug plates and the connection grooves 302 are connected through fixing pins to facilitate quick and stable connection of the connecting plate 11.

[0034] Wherein, an arc surface is provided on one end side of the toothed rotating block 4, and driving teeth 402 capable of meshing with the gear shaft 10 are provided on the arc surface, so as to drive the two groups of machine bodies 100 to move synchronously during folding; the other end of the toothed rotating block 4 is provided with two groups of driving inclined surfaces 403, the driving inclined surface 403 of the toothed rotating block 4 on the right side is an arc surface that is concave inward in the clockwise direction, and the driving inclined surface 403 of the toothed rotating block 4 on the left side is an arc surface that is concave inward in the counterclockwise direction; two groups of contact surfaces 902 matching the driving inclined surfaces 403 are provided on the side of the slider 9 facing the toothed rotating block 4; when folding the folding screen 200, the toothed rotating block 4 on the left side rotates clockwise, and the toothed rotating block 4 on the right side rotates counterclockwise synchronously. At this time, the toothed rotating block 4 releases the slider 9, and the slider 9 moves synchronously towards the toothed rotating block 4 under the elastic force of the spring 7, and the contact surface 902 is always in contact with the driving inclined surface 403. At this time, the spring 7 elongates, and the clamping force between the damping piece one 6 and the damping piece two 8 becomes smaller, that is, the frictional force becomes smaller, so that the screen 200 can be folded more smoothly; on the contrary, when unfolding the screen 200, the toothed rotating block 4 presses the slider 9 while rotating with the rotating shaft 3, causing it to compress the spring 7, thereby increasing the clamping force between the damping piece one 6 and the damping piece two 8, that is, the frictional force becomes larger, so that when unfolding, the effect of stopping at any angle can be achieved. When the maximum unfolding angle of the screen 200 is 180 degrees, the spring 7 is at the maximum force value.

[0035] Wherein, parallel planes are provided on both the upper and lower sides of the middle section of the rotating shaft 3; a connecting through groove 401 in contact with the arc surface and the plane of the rotating shaft 3 is provided at the center of the toothed rotating block 4, and the toothed rotating block 4 is fixedly connected to the rotating shaft 3 through a fixing pin; two groups of connecting round holes 901 are provided on the slider 9, and the connecting round holes 901 are slidably connected to the rotating shaft 3.

[0036] Wherein, a through groove is provided at the center of the damping piece one 6, and the through groove and the middle section of the rotating shaft 3 are in clearance fit to prevent relative rotation between the damping piece one 6 and the rotating shaft 3 when the rotating shaft 3 rotates, and the rotation synchronism between the damping piece one 6 and the rotating shaft 3 can be ensured.

[0037] Wherein, gaskets 12 are installed at both ends of the rotating shaft 3 close to the spring 7, and the gaskets 12 are rotatably connected to the rotating shaft 3. Both ends of the spring 7 are in contact with the gaskets 12, and round holes are provided at the centers of the gaskets 12, which do not rotate during use and only slide along the rotating shaft 3 to prevent abnormal noise from being generated due to rotation between the spring 7 and the gaskets 12.

[0038] Wherein, the vertical cross-sectional dimensions of the fixed seat 2 and the damping piece two 8 are the same, and arc surfaces concave inward are provided at both the upper and lower ends of the middle parts of the fixed seat 2 and the damping piece two 8 to provide sufficient avoidance space for the screen 200 during folding and prevent the screen 200 from contacting the two.

[0039] Working principle of this embodiment: Through the design of the double rotating shaft 3, the present utility model can achieve that after the folding screen 200 is folded, the screen 200 can form a water droplet shape in the folding area, and the screen 200 can be automatically smooth during repeated folding and unfolding processes, avoiding the formation of creases in the folding area, ensuring the beauty of the screen 200 while eliminating the risk of folding and breaking of the screen 200; By setting an external thread 301 on the rotating shaft 3 and using the external thread 301 to connect the nut 5, it can be achieved that during use, the clamping force between the first damping piece 6 and the second damping piece 8 is adjusted by the nut 5, so that the force value of this hinge can be adjusted and output within a certain range. By changing the output force value, the screen 200 can be freely closed or hover at any angle. At the same time, by adjusting the output of different force values, it can adapt to screens of different sizes and weights.

[0040] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical applications of the present utility model, and to enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A novel screen folding hinge structure, including a bottom plate (1) disposed between two sets of bodies (100), both ends of the top of the bottom plate (1) are fixedly installed with fixed seats (2), and two sets of rotating shafts (3) are rotatably installed in parallel between the fixed seats (2), characterized in that: On one side of the rotating shaft (3), connecting plates (11) are fixedly installed, and on the other side of the connecting plates (11), they are respectively connected to the machine body (100) through fasteners; on the outer side of one end of the rotating shaft (3), external threads (301) are provided, and nuts (5) are connected through the external threads (301); on the other end of the rotating shaft (3), toothed rotating blocks (4) are fixedly installed, and a pair of gear shafts (10) are engaged between the two toothed rotating blocks (4), and one end of the gear shaft (10) is rotatably connected to the adjacent fixed seat (2); a slider (9) is sleeved between the two rotating shafts (3), and one side of the slider (9) is in close contact with the toothed rotating block (4); multiple damping sheets II (8) are sleeved between the two rotating shafts (3), and a damping sheet I (6) and a spring (7) are sleeved on the outer side of the rotating shaft (3) between the nut (5) and the slider (9), multiple damping sheets I (6) are provided, and they are installed at intervals between two adjacent damping sheets II (8).

2. The novel screen folding hinge structure according to claim 1, characterized in that: Connection grooves (302) are provided at both ends of the rotating shaft (3), and at both ends of one side of the connecting plate (11), insertion plates connected to the connection grooves (302) are provided, and the insertion plates and the connection grooves (302) are connected through fixing pins.

3. The novel screen folding hinge structure according to claim 1, characterized in that: On the side surface of one end of the toothed rotating block (4), an arc surface is provided, and driving teeth (402) capable of meshing with the gear shaft (10) are provided on the arc surface; on the other end of the toothed rotating block (4), two driving inclined surfaces (403) are provided, and on the side of the slider (9) facing the toothed rotating block (4), two contact surfaces (902) matching the driving inclined surfaces (403) are provided.

4. The novel screen folding hinge structure according to claim 3, wherein: On the upper and lower sides of the middle section of the rotating shaft (3), parallel planes are provided; at the center of the toothed rotating block (4), a connection through groove (401) in contact with the arc surface and the plane of the rotating shaft (3) is provided, and the toothed rotating block (4) is fixedly connected to the rotating shaft (3) through a fixing pin; two connection round holes (901) are provided on the slider (9), and the connection round holes (901) are slidably connected to the rotating shaft (3).

5. The novel screen folding hinge structure according to claim 4, wherein: A through groove is provided at the center of the damping sheet I (6), and the through groove and the middle section of the rotating shaft (3) are in clearance fit.

6. The novel screen folding hinge structure according to claim 1, wherein: Gaskets (12) are installed at both ends of the rotating shaft (3) close to the spring (7), and the gaskets (12) are rotatably connected to the rotating shaft (3).

7. The novel screen folding hinge structure according to claim 1, characterized in that: The vertical cross-sectional dimensions of the fixed seat (2) and the damping sheet II (8) are the same, and inwardly concave arc surfaces are provided at the upper and lower ends of the middle parts of the fixed seat (2) and the damping sheet II (8).

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