Rotating shaft structure capable of being automatically opened at constant speed

Abstract

The utility model relates to a rotating shaft structure capable of being automatically opened at a constant speed, which comprises a self-driving component, a rotating component, a rotating component and a rotating component, and is characterized in that the self-driving component comprises a supporting seat, a rotating spindle, a swing arm cam and double torsion springs; the double-torsion spring is fixedly connected with the swing arm cam; the first damping assembly is mounted at one end of the self-driving assembly; the first damping assembly comprises a bearing plate, a damping cam, a support and two damping springs. The rotating main shaft penetrates through the damping cam, the damping spring and the bracket and then is connected with the clamp spring; the damping spring elastically adjusts meshing between the damping cam and the swing arm cam. The second damping assembly is mounted at the other end of the self-driving assembly; the second damping assembly comprises a damping base and damping grease. The rotating shaft structure capable of being automatically opened at the constant speed is simple in structure and convenient to use, the self-driving assembly is introduced, and the swing arm cam is fixedly connected through the double torsional springs, so that the rotating shaft can automatically provide proper driving force when being unfolded, the force demand of a user during operation is reduced, and the convenience and comfort of operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shafts, in particular to a rotating shaft structure which can be opened automatically at a uniform speed. Background Art

[0002] The hinge is the core component used to achieve folding and unfolding of digital products such as translators and foldable screen mobile phones. Through special structure and design, the hinge can ensure that the body remains stable during the folding and unfolding process.

[0003] The structure of the traditional hinge is relatively simple, mainly composed of components such as a rotating shaft, a spring and a friction plate, and is used to realize the opening and closing functions of digital products. However, this hinge does not have the function of automatically unfolding and flattening. Users need to continuously apply force when opening it, which is cumbersome and laborious, greatly reducing the user experience. Utility Model Content

[0004] Based on this, the utility model provides a rotating shaft structure that can be automatically opened at a uniform speed. It has a simple structure and is easy to use. It introduces a self-driving component and fixes the swing arm cam with a double torsion spring so that the rotating shaft can automatically provide appropriate driving force when unfolded, thereby reducing the force required by the user during operation and improving the convenience and comfort of operation.

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

[0006] A rotating shaft structure capable of automatically opening at a uniform speed, comprising:

[0007] The self-driving assembly includes a support seat, a rotating spindle rotatably passing through opposite sides of the support seat, a swing arm cam coaxially connected to each rotating spindle, and a double torsion spring installed inside the support seat; the double torsion spring is fixedly connected to the swing arm cam;

[0008] A first damping assembly installed at one end of the self-driving assembly; the first damping assembly includes a bearing plate, damping cams connected to opposite ends of the bearing plate, a bracket spaced apart at one side of the bearing plate, and two damping springs sandwiched between the bearing plate and the bracket; the damping springs correspond to the damping cams one by one; the rotating main shaft is respectively penetrated by the damping cam, the damping spring and the bracket and then connected to the retaining spring; the damping spring provides a damping force for the damping cam to elastically adjust the engagement between the damping cam and the swing arm cam; and

[0009] A second damping assembly is installed at the other end of the self-driving assembly; the second damping assembly includes a damping base installed at one end of the support base facing away from the double torsion spring, and damping grease filled in the interior of the damping base on opposite sides; the damping base is provided with accommodating cavities on opposite sides respectively, the accommodating cavities are used to accommodate the rotating spindle, and the damping grease is filled in the interior of the accommodating cavities and wraps the rotating spindle.

[0010] The above-mentioned rotating shaft structure that can be automatically opened at a uniform speed has a simple structure and is easy to use. It introduces a self-driving component and is fixedly connected to the swing arm cam through a double torsion spring, so that the rotating shaft can automatically provide appropriate driving force during the unfolding process, thereby reducing the force required by the user during operation and improving the convenience and comfort of operation.

[0011] In one embodiment, the double torsion spring includes two spring bodies arranged side by side, a limiting portion extending outward from each spring body, and an arched connecting rod connected between the two spring bodies; the arched connecting rod is fixed on a support seat, the two spring bodies are respectively provided for the rotating main shaft to pass through, and the limiting portion is fixedly connected to the swing arm cam one by one, so that the spring body can drive the swing arm cam.

[0012] In one of the embodiments, through holes are respectively provided on opposite sides of the support seat, and the through holes are used for the rotating main shaft to pass through; a fan-shaped limiting recess is provided on one side of the support seat away from the swing arm cam corresponding to each through hole; a fan-shaped limiting block is protruding outward on one side of the rotating main shaft, and the limiting block is matched and accommodated in the interior of the limiting recess.

[0013] In one of the embodiments, a plurality of grooves are arranged at intervals on the outer surface of one end of the rotating main shaft for connecting to the second damping component; and damping grease is filled in the grooves.

[0014] In one embodiment, the self-driving assembly includes a swing arm connected to the outer side of each swing arm cam, and an intermediate gear connected between the two swing arm cams.

[0015] In one embodiment, there are two intermediate gears, which are meshed with each other, and the intermediate gears are meshed with the swing arm cams one by one, so that the two swing arm cams rotate in opposite directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a rotating shaft structure that can be opened automatically at a uniform speed according to one embodiment of the utility model;

[0017] Figure 2 for Figure 1 A three-dimensional schematic diagram of another perspective of the rotating shaft structure that can be opened automatically at a uniform speed;

[0018] Figure 3 for Figure 1 An exploded schematic diagram of a rotating shaft structure that can be opened automatically at a uniform speed is shown;

[0019] Figure 4 for Figure 3 An exploded schematic diagram of another perspective of the rotating shaft structure that can be opened automatically at a uniform speed;

[0020] Figure 5 for Figure 3A schematic diagram showing a comparison of the second damping assembly, the support seat, the rotating main shaft, and the double torsion springs in the rotating shaft structure that can be opened automatically at a uniform speed;

[0021] Figure 6 for Figure 5 An enlarged schematic diagram of circle A shown;

[0022] Figure 7 for Figure 1 The schematic diagram of the assembly of the support seat and the double torsion spring in the rotating shaft structure that can be opened automatically at a uniform speed is shown;

[0023] Figure 8 for Figure 7 A schematic assembly diagram of the support seat and the double torsion spring in the rotating shaft structure that can open automatically at a uniform speed is shown from another perspective.

[0024] Notes on the attached drawings:

[0025] 10-self-driving assembly, 11-support seat, 111-through hole, 112-limiting depression, 12-rotating main shaft, 121-limiting block, 122-groove, 13-swing arm cam, 14-swing arm, 15-intermediate gear, 16-double torsion spring, 161-spring body, 162-limiting part, 163-arch connecting rod;

[0026] 20-first damping assembly, 21-carrying plate, 22-damping cam, 23-bracket, 24-damping spring, 25-circlip;

[0027] 30 - second damping assembly, 31 - damping base, 32 - accommodating chamber. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] See also Figures 1 to 8 , which is a rotating shaft structure that can be automatically opened at a uniform speed according to an embodiment of the utility model, includes a self-driving component 10, a first damping component 20 installed at one end of the self-driving component 10, and a second damping component 30 installed at the other end of the self-driving component 10.

[0032] The self-driving assembly 10 includes a support seat 11, a rotating main shaft 12 rotatably passing through opposite sides of the support seat 11, a swing arm cam 13 coaxially connected to each rotating main shaft 12, a swing arm 14 connected to the outside of each swing arm cam 13, an intermediate gear 15 connected between the two swing arm cams 13, and a double torsion spring 16 installed inside the support seat 11. The double torsion spring 16 includes two spring bodies 161 arranged side by side, a limiting portion 162 extending outward from each spring body 161, and an arched connecting rod 163 connected between the two spring bodies 161; the arched connecting rod 163 is fixed on the support seat 11, the two spring bodies 161 are respectively passed through by the rotating main shaft 12, and the limiting portion 162 is fixedly connected to the swing arm cam 13 one by one, so that the spring body 161 can drive the swing arm cam 13.

[0033] In actual use, one swing arm 14 is used to connect one body of the digital product, and the other swing arm 14 is used to connect the other body of the digital product, so that the two bodies of the digital product can be opened or folded, realizing the opening and closing function of the digital product.

[0034] In this embodiment, there are two intermediate gears 15 , which are meshed with each other, and the intermediate gears 15 are meshed with the swing arm cams 13 one by one, so that the two swing arm cams 13 rotate in opposite directions.

[0035] In this embodiment, if Figures 5 to 8 As shown, through holes 111 are respectively provided on opposite sides of the support base 11, and the through holes 111 are used for the rotation main shaft 12 to pass through. A fan-shaped limiting recess 112 is provided on one side of the support base 11 away from the swing arm cam 13 and corresponding to each through hole 111; a fan-shaped limiting block 121 is protruded outwardly on one side of the rotation main shaft 12, and the limiting block 121 is matched and accommodated in the inside of the limiting recess 112 to limit the rotation range of the rotation main shaft 12 and realize a specific opening and closing angle of the digital product.

[0036] Furthermore, a plurality of grooves 122 are provided at intervals on the outer surface of one end of the rotating main shaft 12 for connecting to the second damping assembly 30 .

[0037] The first damping assembly 20 includes a bearing plate 21, a damping cam 22 connected to opposite ends of the bearing plate 21, a bracket 23 arranged at intervals on one side of the bearing plate 21, and two damping springs 24 sandwiched between the bearing plate 21 and the bracket 23; the damping springs 24 correspond to the damping cams 22 one by one. The rotating main shaft 12 is respectively penetrated by the damping cam 22, the damping spring 24 and the bracket 23, and then connected with the retaining spring 25 to achieve the matching connection between the first damping assembly 20 and the self-driving assembly 10. Among them, the damping spring 24 provides a damping force for the damping cam 22 to elastically adjust the meshing between the damping cam 22 and the swing arm cam 13; the intermediate gear 15 is rotatably connected between the support seat 11 and the bearing plate 21.

[0038] In actual use, when the digital product is in a completely closed state, the two bodies of the digital product are buckled together through structures such as buckles. At this time, the two swing arms 14 are close to each other, the double torsion spring 16 is in a stressed state, and the double torsion spring 16 has accumulated torque. When the user presses the power button of the digital product, the buckle will be released, allowing the bodies to separate. As the buckle is released, the double torsion spring 16 begins to release the previously accumulated torque. The torque of the double torsion spring 16 drives the swing arm cam 13 to rotate and overcome the limit of the damping cam 22, thereby driving the swing arm 14 to unfold, realizing the automatic opening of the digital product. When the two swing arms 14 are completely flattened, the rotating shaft is in a fully open state. At this time, the double torsion spring 16 has completely released the torque and is in a free state, and no longer applies force to the swing arm cam 13.

[0039] The second damping assembly 30 includes a damping base 31 installed on one end of the support base 11 facing away from the double torsion spring 16, and damping grease (not shown) filled in the interior of the damping base 31 on opposite sides; the damping base 31 is provided with a receiving cavity 32 on opposite sides, and the receiving cavity 32 is used to receive the rotating spindle 12, and the damping grease is filled in the interior of the receiving cavity 32 and wraps the rotating spindle 12. Specifically, the damping grease is not only filled around the rotating spindle 12, but also specifically filled in the groove 122 on the outer surface of the rotating spindle 12, thereby increasing the contact area between the damping grease and the rotating spindle 12 and improving the damping effect. The viscosity and friction of the damping grease act on the surface of the rotating spindle 12, especially the area of ​​the groove 122, effectively slowing down the rotation speed of the rotating spindle 12, making it rotate more uniformly and stably, thereby allowing the body to maintain a uniform and stable motion state when opened.

[0040] The above-mentioned rotating shaft structure that can be automatically opened at a uniform speed has a simple structure and is easy to use. It introduces a self-driving component 10 and is fixedly connected to the swing arm cam 13 through a double torsion spring 16, so that the rotating shaft can automatically provide appropriate driving force when unfolding, reducing the force required by the user during operation and improving the convenience and comfort of operation.

[0041] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A rotating shaft structure that can automatically open at a uniform speed, characterized in that: include: The self-driving assembly includes a support seat, a rotating spindle rotatably passing through opposite sides of the support seat, a swing arm cam coaxially connected to each rotating spindle, and a double torsion spring installed inside the support seat; the double torsion spring is fixedly connected to the swing arm cam; A first damping assembly is installed at one end of the self-driving assembly; the first damping assembly includes a bearing plate, damping cams connected to opposite ends of the bearing plate, a bracket arranged at intervals on one side of the bearing plate, and two damping springs sandwiched between the bearing plate and the bracket; the damping springs correspond to the damping cams one by one; the rotating main shaft is respectively penetrated by the damping cam, the damping spring and the bracket and then connected to the retaining spring; the damping spring provides a damping force for the damping cam to elastically adjust the meshing between the damping cam and the swing arm cam; and A second damping assembly is installed at the other end of the self-driving assembly; the second damping assembly includes a damping base installed at one end of the support base facing away from the double torsion spring, and damping grease filled in the interior of the damping base on opposite sides; the damping base is provided with accommodating cavities on opposite sides respectively, the accommodating cavities are used to accommodate the rotating spindle, and the damping grease is filled in the interior of the accommodating cavities and wraps the rotating spindle.

2. The rotating shaft structure capable of automatically opening at a uniform speed according to claim 1, characterized in that: The double torsion spring includes two spring bodies arranged side by side, a limiting portion extending outward from each spring body, and an arched connecting rod connected between the two spring bodies; the arched connecting rod is fixed on the support seat, the two spring bodies are respectively provided for the rotating main shaft to pass through, and the limiting portion is fixedly connected to the swing arm cam one by one, so that the spring body can drive the swing arm cam.

3. The rotating shaft structure capable of automatically opening at a uniform speed according to claim 1, characterized in that: Through holes are respectively provided on the opposite sides of the support seat, and the through holes are used for the rotating main shaft to pass through; a fan-shaped limiting recess is provided on the side of the support seat away from the swing arm cam corresponding to each through hole; a fan-shaped limiting block is protruding outward on one side of the rotating main shaft, and the limiting block is matched and accommodated in the interior of the limiting recess.

4. The rotating shaft structure capable of automatically opening at a uniform speed according to claim 1, characterized in that: A plurality of grooves are arranged at intervals on the outer surface of one end of the rotating main shaft for connecting with the second damping component; and damping grease is filled in the grooves.

5. The rotating shaft structure capable of automatically opening at a uniform speed according to claim 1, characterized in that: The self-driving assembly comprises a swing arm connected to the outer side of each swing arm cam, and an intermediate gear connected between the two swing arm cams.

6. The rotating shaft structure capable of automatically opening at a uniform speed according to claim 5, characterized in that: There are two intermediate gears, which are meshed and connected with each other, and the intermediate gears are meshed with the swing arm cams one by one, so that the two swing arm cams rotate in opposite directions.

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