Gear rotating shaft device

Abstract

The utility model discloses a gear rotating shaft device which comprises a fixing frame, a rotating shaft and an adjusting piece, the rotating shaft is rotatably connected with the fixing frame, the rotating shaft is fixedly connected with the adjusting piece, a damping piece and a gear set are arranged on the fixing frame, one end of the damping piece is rotatably connected with the fixing frame, and the other end of the damping piece is fixedly connected with the adjusting piece. The other end of the damping piece can be connected with a gear set in a reciprocating rotation motion mode, and the gear set is meshed with the rotating shaft; and the damping piece has an acting force for stopping or driving the gear set to rotate. The damping piece and the gear set are additionally arranged on the basis of the rotating matching piece of the basic rotating shaft, the damping piece is rotationally arranged on the fixing frame and rotationally assembled on the gear set, the gear set is meshed with the rotating shaft, and the acting force for stopping or driving the gear set to rotate is arranged on the damping piece. Damping or assisting force exists when the adjusting part assembled on the rotating shaft rotates along with the rotating shaft, and the adjusting part keeps still without external force after rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of audio accessories, in particular to a gear rotating shaft device. Background Art

[0002] As an audio playback system or device, a traditional audio converts electrical signals into sound to provide a high-quality auditory experience. For video playback, users need to carry a display device additionally. Currently, audio machines have begun to integrate displays that can play videos, providing users with a more convenient and integrated entertainment experience.

[0003] Rotating shafts with controllable rotation angles are frequently used in relatively light displays. The friction force generated by squeezing a damping component or gaskets is used to ensure that the screen will not rotate back to its original position due to its own weight, thereby realizing the regulation of the rotation angle. The friction force often depends on the number of gaskets and the tightness of the nuts. This method cannot be implemented in heavier displays. When a heavier display rotates at a large angle, it cannot fix the angle due to the weight of the display. Moreover, after the display is stored using a lifting structure, the overall volume of the audio device is still large. For a bulky display, it is easy to shake during the moving process, and during the storage process using a rotating structure, it is easy to rotate excessively and the display collides with the main body of the audio, resulting in damage to the display. Summary of the Utility Model

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a gear rotating shaft device to solve the problems raised in the above background art.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a gear rotating shaft device, including a fixed frame, a rotating shaft and an adjusting member. The rotating shaft is rotatably connected to the fixed frame, the rotating shaft is fixedly connected to the adjusting member, a damping member and a gear set are arranged on the fixed frame. One end of the damping member is rotatably connected to the fixed frame, and the other end of the damping member is reciprocally rotatably connected to the gear set, and the gear set meshes with the rotating shaft;

[0006] The damping member has a force for blocking or driving the rotation of the gear set.

[0007] As a further improvement of the utility model: the damping member is set as a telescopic cylinder, and the driving end of the telescopic cylinder has a preset force for driving forward.

[0008] As a further improvement of the utility model: the fixed frame is provided with side plates, and a plurality of fixing pins are arranged between the side plates and the side edges of the fixed frame. One end of the damping member is rotatably connected to the fixing pins.

[0009] As a further improvement of the present utility model: The gear set includes a first gear and a second gear. The first gear and the second gear are respectively connected to a fixing pin, and the first gear and the second gear are meshed and connected in sequence.

[0010] As a further improvement of the present utility model: A connecting column is provided on the side surface of the first gear, and the driving end of the telescopic cylinder is rotatably connected to the first gear through the connecting column.

[0011] As a further improvement of the present utility model: A third gear is provided on the rotating shaft, and the third gear is meshed with the second gear.

[0012] As a further improvement of the present utility model: The transmission ratio of the third gear, the second gear and the first gear is 1:1:(2.0 - 2.2).

[0013] As a further improvement of the present utility model: The adjusting member is arranged in an L shape. The adjusting member has a bent portion and a mounting portion. The bent portion is fixedly connected to the rotating shaft, and the mounting portion is connected to an external display.

[0014] As a further improvement of the present utility model: The fixing frame is further provided with a limiting member, and the limiting member is arranged corresponding to the bent portion of the adjusting member.

[0015] As a further improvement of the present utility model: The fixing frame is further provided with a blocking portion, and the blocking portion is arranged on one side of the rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] In the present utility model, the rotating shaft is rotatably assembled on the fixing frame. At the same time, the rotating shaft is fixedly connected to the adjusting member to form a basic rotating fitting member. On this basis, a damping member and a gear set are added. The damping member is rotatably arranged on the fixing frame, and the damping member is rotatably assembled on the gear set. The gear set is meshed with the rotating shaft, and a force for blocking or driving the rotation of the gear set is provided on the damping member, so that there is damping or assistance when the adjusting member on the assembled rotating shaft rotates following the rotating shaft, and the adjusting member remains stationary without external force after rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present utility model.

[0019] Figure 2 It is a specific structural schematic diagram of the present utility model.

[0020] Figure 3 It is a structural schematic diagram of the initial 0° locking state of the present utility model Figure 1 。

[0021] Figure 4Structural schematic diagram of the initial 0° locking state of the present utility model Figure 2 。

[0022] Figure 5 Structural schematic diagram of the critical state of the 8° flip of the present utility model.

[0023] Figure 6 Structural schematic diagram of the locking state when the present utility model is turned up by 195° Figure 1 。

[0024] Figure 7 Structural schematic diagram of the locking state when the present utility model is turned up by 195° Figure 2 。

[0025] Figure 8 Structural schematic diagram of the locking state when the present utility model is turned up by 195° Figure 3 。

[0026] Reference numerals in the figure: 1, fixed frame; 11, side plate; 12, fixing pin; 13, limiting member; 14, blocking portion; 2, rotating shaft; 21, third gear; 3, adjusting member; 31, bending portion; 32, mounting portion; 4, gear set; 41, first gear; 42, second gear; 5, damping member; 6, display. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "coupling" 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; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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 situations.

[0029] In order to solve the technical problems in the prior art, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments:

[0030] Such as Figures 1 - 5As shown, the embodiment of the utility model discloses a gear shaft device, which mainly includes a fixed frame 1, a shaft 2 and an adjusting member 3, wherein the shaft 2 is rotatably connected to the fixed frame 1, the shaft is fixedly connected to the adjusting member 3, a damping member 5 and a gear set 4 are arranged on the fixed frame 1, one end of the damping member 5 is rotatably connected to the fixed frame 1, and the other end of the damping member 5 is reciprocatingly connected to the gear set 4, and the gear set 4 is meshed with the shaft 2;

[0031] The damping member 5 has a force to block or drive the gear set 4 to rotate.

[0032] The damping member 5 is configured as a telescopic cylinder, and a driving end of the telescopic cylinder has a preset force for driving forward.

[0033] like Figures 1 - 5 As shown, the force that prevents the shaft 2 from blocking the gear set 4 from rotating can be understood as preventing the shaft 2 from rotating excessively. It can also be understood that the damping member 5 provides a displacement / stroke that prevents the shaft 2 from rotating in the positive direction beyond a set limit angle. The set limit angle is the maximum angle at which the shaft 2 rotates upward without colliding with the display 6 and the audio body.

[0034] like Figures 1 - 8 As shown, the damping member 5 provides a force to drive the gear set 4 to rotate, which can also be understood as providing a force to drive the rotating shaft 2 to rotate. It can also be understood that when one end of the damping member 5 is in a critical position, the display 6, the adjustment member 3, and the rotating shaft 2 remain stationary relative to the fixed frame 1 without the action of an external force. When an external force is applied to drive the rotating shaft 2 to rotate downward, the damping member 5 provides a displacement to drive the rotating shaft 2 to rotate downward, so that the damping member 5 drives the gear set 4 and the rotating shaft 2, the adjustment member 3 and the display 6 to rotate downward. For some heavier displays 6, the storage work can be completed more smoothly and easily under the displacement / stroke change of the damping member 5.

[0035] In this embodiment, the rotating shaft 2 drives the adjusting member 3 to rotate, and the downward rotating direction is defined as the storage direction of the display 6 on the adjusting member 3, and conversely, the upward rotating direction is defined as the unfolding direction of the display 6 on the adjusting member 3.

[0036] The fixing bracket 1 is arranged on one side of the main body of the audio system, and can be on the upper side or any side of the surrounding of the main body of the audio system. Usually, the fixing bracket 1 is arranged on the upper part of the main body of the audio system, and when the display 6 on the adjusting member 3 is stored, it is folded and rotated to be close to the surrounding side of the main body of the audio system. After the display 6 is stored, the overall volume of the audio system becomes smaller, which is convenient for users to carry.

[0037] In a specific example, when the rotating shaft 2 rotates downward, the display 6 rotates downward and is folded and stored on any side of the speaker main body. The position at this time is defined as the initial 0° locking state; when the rotating shaft 2 rotates upward, the display 6 flips upward. When the damping member 5 and the gear set 4 are in the limit driving state, it stands above the fixing bracket 1. The position at this time is defined as the 195° upward flip locking state.

[0038] In this embodiment, the fixing bracket 1 is provided with a side plate 11. A plurality of fixing pins 12 are provided between the side plate 11 and the side of the fixing bracket 1. One end of the damping member 5 is rotatably connected to the fixing pin 12.

[0039] Further, the gear set 4 includes a first gear 41 and a second gear 42. The first gear 41 and the second gear 42 are respectively connected to the fixing pin 12, and the first gear 41 and the second gear 42 are sequentially meshed and connected.

[0040] Furthermore, a connecting column is provided on the side of the first gear 41. The driving end of the telescopic cylinder is rotatably connected to the first gear 41 through the connecting column.

[0041] The fixed end of the damping member 5 in this embodiment is rotatably connected to the fixing pin 12 relative to the fixing pin 12, and the driving end of the damping member 5 is rotatably connected to the connecting column through the connecting column fixed to the first gear 41. In this combination of fittings, when the fixed end of the damping member 5, the fixed end of the damping member 5 and the center of the first gear 41 are in a straight line, the position at this time is defined as the 8° flip critical state.

[0042] When assembling the damping member 5 in this embodiment and flipping the display 6 on the flipping adjusting member 3, the rotating shaft 2 on the fixing bracket 1 rotates. After the adjusting member 3 and the display 6 thereon rotate around the central axis of the rotating shaft 2, that is, when switching between or staying between the initial 0° locking state, the 8° flip critical state and the 195° upward flip locking state, it has the following methods.

[0043] 1) When switching from the initial 0° locking state to the critical state of 8° flipping, since the damping member 5 has a preset force for forward driving, this preset force will cause the damping member 5 to drive the rotating shaft 2 to rotate downward. However, when switching from the initial 0° locking state to the critical state of 8° flipping, it is a upward rotation. That is, under the action of an external force, due to the acting force of the damping member 5, a relatively large external force is required for the switching from the initial 0° locking state to the critical state of 8° flipping. The setting method for the switching from the initial 0° locking state to the critical state of 8° flipping is that the fixing bracket 1 is arranged on the upper part of the audio main body. When storing, the display 6 on the adjusting member 3 is folded and rotated close to the peripheral sides of the audio main body. After the display 6 is stored, the overall volume of the audio device becomes smaller, which is convenient for the user to carry. However, due to the bumps of the vehicle during transportation, the relatively heavy display 6 in the carriage will have a large external force under the action of bumps and inertia. Generally, under the action of an external force, the display 6 will be folded and rotated back and forth on the peripheral sides of the audio main body, resulting in a situation where it collides with the peripheral sides of the audio main body and is damaged. Therefore, by setting the damping member 5 with a preset force and the first gear 41, a relatively large external force is required for the switching from the initial 0° locking state to the critical state of 8° flipping for flipping. The damping member 5 with a preset force for forward driving has a damping effect when flipping the display 6 upward, which can effectively ensure that the display 6 on the adjusting member 3 is tightly attached to the peripheral sides of the audio main body. On the contrary, when switching from the critical state of 8° flipping to the initial 0° locking state, due to the preset force of the damping member 5 for forward driving, this preset force will cause the damping member 5 to drive the rotating shaft 2 to rotate downward, and the switching from the critical state of 8° flipping to the initial 0° locking state is also a downward rotation. The damping member 5 with a preset force for forward driving has a boosting effect when flipping the display 6 upward. Therefore, under the action of human force, it is easier for the display 6 to switch from the critical state of 8° flipping to the initial 0° locking state, effectively ensuring the simplicity of flipping.

[0044] 2) When switching from the critical state of 8° flipping to the locked state of 195° upward flipping, since the damping member 5 has a preset force for forward driving, this preset force will cause the damping member 5 to drive the rotating shaft 2 to rotate upward. And since the switching from the critical state of 8° flipping to the locked state of 195° upward flipping is also a rotation upward, that is, under the action of an external force, due to the acting force of the damping member 5, it is not necessary to apply a large external force when switching from the critical state of 8° flipping to the locked state of 195° upward flipping. Under the combined action of the acting force of the damping member 5 and the external force, it will make the switching from the critical state of 8° flipping to the locked state of 195° upward flipping easier, that is, it is not necessary to apply a large external force when flipping the display 6 on the adjusting member 3 upward, and the display 6 can be flipped easily. The damping member 5 with a preset force for forward driving has a boosting effect when flipping the display 6 upward; conversely, when switching from the locked state of 195° upward flipping to the critical state of 8° flipping, since the damping member 5 has a preset force for forward driving, this preset force will cause the damping member 5 to drive the rotating shaft 2 to rotate upward. However, since the switching from the locked state of 195° upward flipping to the critical state of 8° flipping is a rotation downward, that is, under the action of an external force, due to the acting force of the damping member 5, it is necessary to apply a large external force when switching from the critical state of 8° flipping to the locked state of 195° upward flipping. And the damping member 5 with a preset force is greater than the gravity of the display 6. When the user flips the display 6 upward to any angle, due to the acting force of the damping member 5, the display 6 will be clamped at any angle. The damping member 5 with a preset force for forward driving has a damping effect when flipping the display 6 upward. Under the action of the damping member 5, it is possible to fix the display 6 at different angles between the critical state of 8° flipping and the locked state of 195° upward flipping, improving the user's usage experience and viewing experience, and solving the problem that the angle of the display 6 in the current lifting and storage structure is inconvenient to adjust.

[0045] In this embodiment, a third gear 21 is provided on the rotating shaft 2, and the third gear 21 meshes with the second gear 42. By using the third gear 21 on the rotating shaft 2, the transmission effects of the first gear 41 and the second gear 42 can be effectively exerted on the third gear 21, and the coherence of switching between the initial locked state of 0° and the locked state of 195° upward flipping or staying therebetween can be effectively achieved.

[0046] In this embodiment, the transmission ratio of the third gear 21, the second gear 42, and the first gear 41 is 1:1:(2.0~2.2).

[0047] Since there is a rotational limit when the first gear 41 rotates in cooperation with the damping member 5, in order to ensure that the display 6 can be switched between the initial locked state at 0° and the locked state when flipped up by 195°, the transmission ratio of the first gear 41, the second gear 42, and the third gear 21 needs to be set to at least (2.0 - 2.2). That is, compared with the second gear 42 and the third gear 21, the number of teeth of the first gear 41 should be 2 - 2.2 times or more larger than that of the second gear 42 and the third gear 21 to ensure the effective transmission of the gear set 4. Otherwise, before the display 6 is flipped in place, the gear set 4 will be jammed and the flipping of the display 6 cannot be achieved. And in this embodiment, the optimal value of the transmission ratio of the third gear 21, the second gear 42, and the first gear 41 is 1:1:2.133.

[0048] In this embodiment, the adjusting member 3 is arranged in an L shape. The adjusting member 3 has a bent portion and a mounting portion 32. The bent portion 31 is fixedly connected to the rotating shaft 2, and the mounting portion 32 is connected to the external display 6.

[0049] Furthermore, the fixing frame 1 is further provided with a limiting member 13, and the limiting member 13 is arranged corresponding to the bent portion 31 of the adjusting member 3.

[0050] Even further, the fixing frame 1 is further provided with a blocking portion 14, and the blocking plate is arranged on one side of the rotating shaft 2.

[0051] It should be noted that in this embodiment, the first limit angle can be understood as the viewing angle between the adjusting member 3 and the fixing frame 1, which is defined as the maximum angle of upward rotation of the rotating shaft 2. At this time, the display 6 is in the unfolded state, and the user can view the content played by the display 6. The second limit angle is the fitting angle between the adjusting member 3 and the fixing frame 1, which is defined as the maximum angle of downward rotation of the rotating shaft 2. At this time, the display 6 is in the retracted state.

[0052] By providing the limiting member 13 on the fixing frame 1, and with the cooperation of the damping member 5, the gear set 4, and the rotating shaft 2, when the display 6 is at the first limit angle, since the adjusting member 3 has a bent portion and a mounting portion 32, at this time, the back of the bent portion 31 will abut against the limiting member 13, restricting the display 6 from flipping upward extremely. The display 6 is in the unfolded state, and the user can view the content played by the display 6. Also, since the fixing frame 1 is further provided with a blocking portion 14, when the display 6 is flipped downward to the first limit angle, the bent portion 31 will abut against the blocking portion 14, that is, the display 6 fits on the peripheral side surface of the audio main body, preventing the display 6 from colliding with the audio main body.

[0053] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present utility model are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0054] In summary, after reading the documents of the present utility model, various other corresponding transformation schemes made by those of ordinary skill in the art without creative mental labor according to the technical solutions and technical concepts of the present utility model all fall within the scope protected by the present utility model.

Claims

1. A gear shaft device, comprising a fixing frame, a shaft and an adjusting member, wherein the shaft is rotatably connected to the fixing frame, and the shaft is fixedly connected to the adjusting member, characterized in that, A damping member and a gear set are provided on the fixing bracket. One end of the damping member is rotatably connected to the fixing bracket, and the other end of the damping member is reciprocally rotatably connected to the gear set. The gear set meshes with the rotating shaft. The damping member has a force for blocking or driving the rotation of the gear set.

2. The gear shaft device according to claim 1, characterized in that, The damping member is set as a telescopic cylinder, and the driving end of the telescopic cylinder has a preset force for forward driving.

3. The gear shaft device according to claim 2, characterized in that, The fixing bracket is provided with side plates, and a plurality of fixing pins are arranged between the side plates and the side edges of the fixing bracket. One end of the damping member is rotatably connected to the fixing pins.

4. A gear shaft device according to claim 3, characterized in that, The gear set includes a first gear and a second gear. The first gear and the second gear are respectively connected to the fixing pins, and the first gear and the second gear are sequentially meshed and connected.

5. A gear shaft device according to claim 4, characterized in that, A connecting column is arranged on the side surface of the first gear, and the driving end of the telescopic cylinder is rotatably connected to the first gear through the connecting column.

6. The gear shaft device according to claim 5, characterized in that, A third gear is arranged on the rotating shaft, and the third gear meshes with the second gear.

7. The gear shaft device according to claim 6, characterized in that, The transmission ratio of the third gear, the second gear and the first gear is 1:1:(2.0 - 2.2).

8. A gear shaft device according to claim 7, characterized in that, The adjusting member is set in an L shape. The adjusting member has a bending part and a mounting part. The bending part is fixedly connected to the rotating shaft, and the mounting part is connected to an external display.

9. The gear shaft device according to claim 8, characterized in that, The fixing bracket is further provided with a limiting member, and the limiting member is arranged corresponding to the bending part of the adjusting member.

10. A gear shaft device according to claim 9, wherein, The fixing bracket is further provided with a blocking part, and the blocking part is arranged on one side of the rotating shaft.

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