Damping rotating shaft mechanism

Abstract

The utility model relates to the technical field of damping rotating shafts, in particular to a damping rotating shaft mechanism which comprises a rotating shaft and a shell, one end of the rotating shaft penetrates into the shell, a damper is arranged in the shell, one end of the damper is connected with the end wall of the shell, and a matching piece located in the shell is arranged between the other end of the damper and the rotating shaft. The matching part comprises a cam connected with one end of the rotating shaft, the cam is provided with a concave wheel connected with the damper in a matched mode, a sliding clamping groove parallel to the axis of the shell is formed in the inner side wall of the shell, a clamping block matched with the sliding clamping groove is arranged on the outer side of the concave wheel, and the damper is sleeved with an elastic spring located in the shell. According to the turnover product opening device, a user can conveniently open a turnover product in a more labor-saving mode, the closing speed can be reduced when the turnover product is closed, and hands are prevented from being pinched.

Description

Technical Field

[0001] The utility model relates to the technical field of damping rotating shafts, in particular to a damping rotating shaft mechanism. Background Art

[0002] A hinge is a mechanical device used to connect two solid bodies and allow them to rotate relative to each other. Currently, hinges are used in mobile terminals such as tablets and laptops, and users manually control the opening and closing of the screen and the body.

[0003] For example, a document with the publication number CN201173037Y was disclosed on December 31, 2008, which is a damping shaft, which consists of a sleeve and a shaft, and a longitudinal shaft hole is respectively provided at both ends of the sleeve; the shaft consists of a pin and a shaft cap fixed to one end of the pin, the pin on the shaft is inserted into the shaft hole of the sleeve in an interference fit manner, and the insertion end of the pin is provided with a longitudinal narrow through groove passing through the center line of the shaft pin. The utility model is very convenient to install and can also stay in any position; but in the above documents, it is not easy to open when the control screen and the main body are opened and it is easy to pinch the hand when closing. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a damping hinge mechanism to solve the problem that the control screen and the body are difficult to open when opened and easily get pinched when closed.

[0005] Based on the above-mentioned purpose, the utility model provides a damping rotating shaft mechanism, including a rotating shaft and a shell, one end of the rotating shaft penetrates into the shell, a damper is arranged in the shell, one end of the damper is connected to the end wall of the shell, and a mating piece located in the shell is arranged between the other end of the damper and the rotating shaft, the mating piece includes a cam connected to one end of the rotating shaft, the cam is matched with a concave wheel connected to the damper, a sliding groove arranged parallel to the axis of the shell is provided on the inner side wall of the shell, a block matched with the sliding groove is provided on the outer side of the concave wheel, and an elastic spring located in the shell is sleeved on the outer side of the damper, and the two ends of the elastic spring respectively abut the concave wheel and the end wall of the shell.

[0006] Optionally, a guide head is provided in the middle of the cam on the side facing the concave wheel, and a through hole is provided in the middle of the concave wheel to cooperate with the guide head.

[0007] Optionally, a plurality of protrusions symmetrically arranged about the axis of the rotating shaft are provided on a side of the cam facing the concave wheel, and a groove cooperating with the protrusions is provided on the concave wheel.

[0008] Optionally, a first arc-shaped inclined surface is provided on one side of the protrusion, and a second arc-shaped inclined surface is provided on the side wall of the groove to cooperate with the first arc-shaped inclined surface.

[0009] Optionally, the end face of the protrusion is a first plane perpendicular to the axis of the rotating shaft, and the concave wheel is provided with a second plane matched with the first plane.

[0010] Optionally, an opening is provided at one end of the housing away from the rotating shaft, and the opening is provided with a closing plug.

[0011] Optionally, the outer side wall of the closing plug is provided with an external thread that matches the internal thread of the inner side wall of the opening.

[0012] Optionally, the damper includes a cylinder, which is hollow and contains a compression spring. T-shaped rods are provided on both sides of the compression spring, and one end of the T-shaped rod extends to the outside of the cylinder away from the compression spring. The opposite ends of the two T-shaped rods are respectively connected to the outer shell and the cam.

[0013] Optionally, plastic pads are provided on opposite sides of the two T-shaped rods.

[0014] Optionally, the T-shaped rod includes a connecting rod passing through the end wall of the cylinder, and one end of the connecting rod is connected to a push plate located in the cylinder and contacting the end of the compression spring.

[0015] The beneficial effects of the utility model are as follows: the utility model provides a damping rotating shaft mechanism, which, when installed and used, has one end of the rotating shaft and the outer side of the shell fixedly connected to the machine body and the folding product such as the display screen that needs to be opened respectively; when the display screen and the machine body are closed, the ends of the cam and the concave wheel that are arranged facing each other are matched with the end face of the concave wheel, the cam and the concave wheel are separated, and the elastic spring and the damper are in a compressed state; when the display screen needs to be opened, the concave wheel moves in a direction close to the cam, and the compressed elastic spring releases elastic potential energy, which helps the opening process to be lighter and easier, so that the user can open the folding product more effortlessly; after the display screen is fully opened, the cam is fully inserted into the concave wheel and matches the concave wheel; when the display screen needs to be flipped closed, the cam and the concave wheel slowly separate, and the concave wheel moves in a direction away from the cam, compressing the elastic spring, so that the speed during the falling process is slower, and the falling speed will slow down again when it is close to closing to prevent hands from being pinched, and the overall falling speed is adjusted by the cooperation of the cam and the concave wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the rotating shaft mechanism of the utility model arranged on the folding product;

[0020] Figure 4 This is a schematic diagram of the structure of the utility model with the outer shell removed;

[0021] Figure 5 for Figure 4 A schematic cross-sectional structural diagram of ;

[0022] Figure 6 This is a schematic diagram of the structure of the cam and the concave wheel of the utility model;

[0023] Figure 7 This is a structural diagram of the cam of the utility model;

[0024] Figure 8 This is a schematic structural diagram of the concave wheel of the present utility model;

[0025] Figure 9 This is a schematic structural diagram of the damper of the present utility model;

[0026] Figure 10 This is a schematic diagram of the structure in which the cam and the concave wheel are separated in the present invention;

[0027] Figure 11 It is a structural schematic diagram of the shell of the utility model.

[0028] In the figure: 1. Housing; 2. Rotating shaft; 3. Cam; 31. First arc-shaped inclined surface; 4. Concave wheel; 41. Second arc-shaped inclined surface; 5. Elastic spring; 6. Closing plug; 7. Damper; 8. Plastic pad; 9. Compression spring; 10. Cylinder; 11. T-shaped rod; 12. Sliding slot. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] like Figures 1 to 11 As shown, a damping rotating shaft mechanism includes a rotating shaft 2 and a shell 1, one end of the rotating shaft 2 penetrates into the shell 1, a damper 7 is arranged in the shell 1, one end of the damper 7 is connected to the end wall of the shell 1, and a matching piece located in the shell 1 is arranged between the other end of the damper 7 and the rotating shaft 2, the matching piece includes a cam 3 connected to one end of the rotating shaft 2, the cam 3 is matched with a concave wheel 4 connected to the damper 7, the inner side wall of the shell 1 is provided with a sliding groove 12 arranged parallel to the axis of the shell 1, the outer side of the concave wheel 4 is provided with a block matched with the sliding groove 12, the outer side of the damper 7 is sleeved with an elastic spring 5 located in the shell 1, and the two ends of the elastic spring 5 are respectively abutted against the concave wheel 4 and the end wall of the shell 1.

[0032] During installation and use, one end of the rotating shaft 2 and the outer side of the shell 1 are respectively fixedly connected to the body and the folding product such as the display screen that needs to be opened. When the display screen and the body are closed, Figure 10 As shown, the ends of the cam 3 and the concave wheel 4 facing each other are matched with the end surface of the concave wheel 4, the cam 3 and the concave wheel 4 are separated, and the elastic spring 5 and the damper 7 are in a compressed state; when the display screen needs to be opened, the concave wheel 4 moves toward the direction close to the cam 3, and the compressed elastic spring 5 releases elastic potential energy, which helps the opening process to be lighter and easier for the user to open the folding product with less effort; after the display screen is fully opened, as shown in FIG. Figure 3-6 As shown, the cam 3 is fully inserted into the concave wheel 4 and cooperates with the concave wheel 4; when the display screen needs to be flipped closed, the cam 3 and the concave wheel 4 are slowly separated, and the concave wheel 4 moves in the direction away from the cam 3, compressing the elastic spring 5, so that the speed during the falling process is slow, and the falling speed will slow down again when it is close to closing to prevent hands from being pinched. The overall falling speed is adjusted by the cooperation of the cam 3 and the concave wheel 4.

[0033] A guide head is provided in the middle of the cam 3 on the side facing the concave wheel 4, and a through hole is provided in the middle of the concave wheel 4 to cooperate with the guide head, so as to facilitate the cooperation between the cam 3 and the concave wheel 4 and reduce the risk of the cam 3 and the concave wheel 4 not being able to cooperate.

[0034] The cam 3 is provided with a plurality of protrusions symmetrically arranged around the axis of the rotating shaft 2 on one side facing the concave wheel 4 , and the concave wheel 4 is provided with grooves matched with the protrusions to facilitate the matching between the cam 3 and the concave wheel 4 .

[0035] A first arcuate slope 31 is provided on one side of the protrusion, and a second arcuate slope 41 is provided on the side wall of the groove to cooperate with the first arcuate slope 31. The cooperation between the first arcuate slope 31 and the second arcuate slope 41 facilitates the compression of the elastic spring 5 and the damper 7.

[0036] The end face of the protrusion is a first plane perpendicular to the axis of the rotating shaft 2, and the concave wheel 4 is provided with a second plane matched with the first plane. Figure 10 As shown, the first plane and the second plane are arranged in abutment with each other, so as to facilitate compression of the elastic spring 5 .

[0037] An opening is formed at one end of the housing 1 away from the rotating shaft 2 , and a closing plug 6 is provided at the opening to facilitate the disassembly and replacement of the rotating shaft mechanism.

[0038] The outer wall of the closing plug 6 is provided with an external thread that matches the internal thread of the inner wall of the opening. The force of the rotating shaft during rotation can be adjusted by the distance that the closing plug 6 enters the opening.

[0039] The damper 7 includes a cylinder 10, which is hollow and has a compression spring 9 inside. T-shaped rods 11 are abutted on both sides of the compression spring 9. One end of the T-shaped rod 11 away from the compression spring 9 extends to the outside of the cylinder 10. The opposite ends of the two T-shaped rods 11 are respectively connected to the housing 1 and the cam 4. The damper 7 is arranged to provide assistance during the process of closing and then opening the rotating shaft.

[0040] Plastic pads 8 are provided on opposite sides of the two T-shaped rods 11 .

[0041] The T-shaped rod 11 includes a connecting rod that passes through the end wall of the cylinder 10 , and one end of the connecting rod is connected to a push plate located in the cylinder 10 and in contact with the end of the compression spring 9 to facilitate compression of the compression spring 9 .

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0043] The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A damping shaft mechanism, comprising a rotating shaft (2) and a housing (1), characterized in that: One end of the rotating shaft (2) penetrates into the housing (1), and a damper (7) is provided in the housing (1). One end of the damper (7) is connected to the end wall of the housing (1), and a matching piece located in the housing (1) is provided between the other end of the damper (7) and the rotating shaft (2). The matching piece includes a cam (3) connected to one end of the rotating shaft (2), and the cam (3) is provided with a concave wheel (4) connected to the damper (7). The inner side wall of the housing (1) is provided with a sliding groove (12) arranged parallel to the axis of the housing (1), and the outer side of the concave wheel (4) is provided with a card block arranged to cooperate with the sliding groove (12). The outer side of the damper (7) is provided with an elastic spring (5) located in the housing (1), and the two ends of the elastic spring (5) are respectively in contact with the concave wheel (4) and the end wall of the housing (1).

2. A damping shaft mechanism according to claim 1, characterized in that: A guide head is provided in the middle of the side of the cam (3) facing the concave wheel (4), and a through hole is provided in the middle of the concave wheel (4) to cooperate with the guide head.

3. A damping shaft mechanism according to claim 2, characterized in that: A plurality of protrusions are provided on one side of the cam (3) facing the concave wheel (4) and are symmetrically arranged about the axis of the rotating shaft (2); and a groove is provided on the concave wheel (4) to cooperate with the protrusions.

4. A damping shaft mechanism according to claim 3, characterized in that: A first arc-shaped inclined surface (31) is provided on one side of the protrusion, and a second arc-shaped inclined surface (41) is provided on the side wall of the groove and is matched with the first arc-shaped inclined surface (31).

5. A damping shaft mechanism according to claim 3 or 4, characterized in that: The end face of the convex block is a first plane arranged perpendicular to the axis of the rotating shaft (2), and the concave wheel (4) is provided with a second plane arranged in coordination with the first plane.

6. The damping shaft mechanism according to claim 1, characterized in that: An opening is provided at one end of the housing (1) away from the rotating shaft (2), and a closing plug (6) is provided in cooperation with the opening.

7. The damping shaft mechanism according to claim 6, characterized in that: The outer side wall of the closing plug (6) is provided with an external thread that matches the internal thread of the inner side wall of the opening.

8. The damping shaft mechanism according to claim 1, characterized in that: The damper (7) comprises a cylinder (10), the cylinder (10) is hollow, a compression spring (9) is arranged in the cylinder (10), T-shaped rods (11) are arranged in contact with both sides of the compression spring (9), one end of the T-shaped rod (11) away from the compression spring (9) extends to the outside of the cylinder (10), and the opposite ends of the two T-shaped rods (11) are respectively connected to the housing (1) and the cam (4).

9. The damping shaft mechanism according to claim 8, characterized in that: Plastic pads (8) are provided on opposite sides of the two T-shaped rods (11).

10. The damping shaft mechanism according to claim 8, characterized in that: The T-shaped rod (11) comprises a connecting rod penetrating the end wall of the cylinder (10), one end of the connecting rod being connected to a push plate located in the cylinder (10) and contacting the end of the compression spring (9).

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