Gear transmission rotating shaft applied to opening and closing of screen
By designing the combination of gear transmission shaft and C-type elastic sleeve, the existing shaft shock absorption and poor stability are solved, and the screen opening and closing process is achieved, which improves the experience and service life.
Patent Information
- Application Number
- CN202421070028.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The existing shafts used for screen opening and closing use have poor shock absorption and stability, which affects the experience of the screen flip process.
A gear transmission rotation shaft including a first connecting piece, a first rotating shaft, a second rotating shaft, a first gear, a second gear, a second connecting piece and a torque generator are designed, and precise movement and load are achieved through gear meshing transmission. Transfer and adjust the damping coefficient through the C-type elastic sleeve to ensure the smooth and stable screen opening and closing process.
It achieves high-precision, stable and reliable transmission, improves the experience and stability of the screen flip process, avoids sudden impact, extends service life, and can stably fix the screen at any angle.
Smart Images
Figure CN222185449U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotating shafts, in particular to a gear transmission rotating shaft used for opening and closing a screen. Background Art
[0002] A shaft, as the name suggests, is an axis that must be used to connect the main parts of a product and is used to withstand both bending and torque during rotation. Common shafts include: mobile phone shafts (flip or rotating screen phones); laptop shafts; portable DVD shafts; LED desk lamp shafts; LCD display shafts; GPS and other vehicle-mounted bracket shafts, etc.
[0003] However, the existing hinges on the market for opening and closing screens have poor shock absorption and stability, which affects the experience of the screen flipping process. Utility Model Content
[0004] The main purpose of the utility model is to propose a gear transmission shaft used for opening and closing the screen, aiming to solve the technical problems that the existing shaft used for opening and closing the screen has poor shock absorption and stability, which affects the experience of the screen flipping process.
[0005] To achieve the above-mentioned purpose, the utility model provides a gear transmission shaft for opening and closing a screen, comprising a first connecting piece, a first rotating shaft, a second rotating shaft, a first gear, a second gear, a second connecting piece and a torque generating member, wherein the first connecting pieces are fixedly connected to the screens respectively, the first connecting pieces are arranged in parallel and at intervals, the inner side walls of the first connecting pieces are respectively recessed with a U-shaped groove, the two ends of the first rotating shaft and the second rotating shaft are respectively detachably fixedly connected to the two ends of the U-shaped groove, the first gear and the second gear are respectively detachably arranged on the first rotating shaft and the second rotating shaft, and rotate with the first rotating shaft and the second rotating shaft, The first gear and the second gear are meshingly connected, the second connecting piece is respectively arranged on both sides of the first gear and the second gear, and a through hole is respectively recessed at both ends of the second connecting piece. The first rotating shaft and the second rotating shaft are respectively rotatably inserted into the through hole settings, and the two side walls of the first gear and the second gear are respectively slidably abutted against the second connecting piece. A C-shaped elastic sleeve is respectively provided at both ends of the torque generating part, and the first rotating shaft and the second rotating shaft are respectively rotatably inserted into the C-shaped elastic sleeve settings, and the outer circumferential walls of the first rotating shaft and the second rotating shaft are respectively rotatably inserted into the C-shaped elastic sleeve settings, and the outer circumferential walls of the first rotating shaft and the second rotating shaft are interference fit connected with the inner circumferential wall of the C-shaped elastic sleeve.
[0006] Optionally, a gear connecting portion is respectively protruding from the outer peripheral wall in the middle of the first rotating shaft and the second rotating shaft, and a connecting hole is respectively recessed in the middle of the first gear and the second gear, the cross-sections of the gear connecting portion and the connecting hole are both elliptical structures, the gear connecting portions are respectively detachably embedded in the connecting holes, and one end of the gear connecting portion is protruding from a limiting flange along the circumferential direction, the side wall of the second connecting piece abuts against the limiting flange, and the side walls of the C-shaped elastic sleeve respectively abut against the side walls of the second connecting piece.
[0007] Optionally, it also includes a fastening bolt, and a first threaded hole is respectively recessed at both ends of the U-shaped groove, and an open groove extending along the axial direction is respectively recessed at the end walls of the first rotating shaft and the second rotating shaft, and the two ends of the U-shaped groove are respectively detachably embedded in the open groove, and a second threaded hole is respectively recessed at both ends of the first rotating shaft and the second rotating shaft, and the fastening bolt is respectively screwed on the second threaded hole and the first threaded hole in sequence.
[0008] Optionally, the first connecting piece is recessed with a plurality of bolt mounting holes.
[0009] The technical solution of the utility model has the following beneficial effects: in the technical solution of the utility model, the first rotating shaft and the second rotating shaft transmit power and torque through the meshing of the first gear and the second gear, thereby realizing transmission, and the gear transmission has high accuracy, stability and reliability, thereby realizing precise movement and load transmission, high transmission efficiency, reliable operation, and high safety. The surface hardness of the gear is high, the load-bearing capacity is strong, the service life is long, and a constant transmission ratio can be guaranteed. The meshing of the gears can realize the smooth transmission of power output, so the transmission is smooth, avoiding sudden impact, and having strong compatibility: the gear transmission shaft can be manufactured and designed by adjusting the module and the number of teeth of the gear. The flexibility and adaptability of the design make the screen opening and closing process smoother, with good shock absorption and stability; a C-shaped elastic sleeve is respectively provided at both ends of the torque generating member, and the first rotating shaft and the second rotating shaft are respectively rotatably inserted into the C-shaped elastic sleeve arrangement, and the outer circumferential walls of the first rotating shaft and the second rotating shaft are interference fit connected with the inner circumferential wall of the C-shaped elastic sleeve, and the torque between the C-shaped elastic sleeve and the first rotating shaft and the second rotating shaft can be adjusted to the optimal damping coefficient to avoid too loose or too tight fit, making it easier to rotate and open the screen, and the screen can be stably fixed at any angle, effectively improving the experience during the screen flipping process, and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0011] Figure 1 The overall structure of a gear transmission shaft used for opening and closing a screen according to an embodiment of the utility model is shown in FIG. Figure 1 ;
[0012] Figure 2 The overall structure of a gear transmission shaft used for opening and closing a screen according to an embodiment of the utility model is shown in FIG. Figure 2 ;
[0013] Figure 3 This is a schematic diagram of the exploded structure of a gear transmission shaft used for opening and closing a screen according to an embodiment of the utility model.
[0014] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0017] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0018] The utility model provides a gear transmission shaft used for opening and closing a screen.
[0019] like Figures 1 to 3As shown, in one embodiment of the utility model, the gear transmission shaft used for opening and closing the screen includes a first connecting piece 101, a first rotating shaft 102, a second rotating shaft 103, a first gear 104, a second gear 105, a second connecting piece 106 and a torque generating member 107. The first connecting pieces 101 are fixedly connected to the screens respectively, the first connecting pieces 101 are arranged in parallel and spaced apart, and the inner side walls of the first connecting pieces 101 are respectively recessed with a U-shaped groove 1011, and the two ends of the first rotating shaft 102 and the second rotating shaft 103 are respectively detachably fixedly connected to the two ends of the U-shaped groove 1011, and the first gear 104 and the second gear 105 are respectively detachably arranged on the first rotating shaft 102 and the second rotating shaft 103, and rotate with the first rotating shaft 102 and the second rotating shaft 103. The first gear 104 and the second gear 105 are meshed and connected in transmission, the second connecting piece 106 is respectively arranged on both sides of the first gear 104 and the second gear 105, and a through hole 1061 is respectively recessed at both ends of the second connecting piece 106. The first rotating shaft 102 and the second rotating shaft 103 are respectively rotatably penetrated in the through hole 1061, and the two side walls of the first gear 104 and the second gear 105 are respectively slidably abutted against the second connecting piece 106. A C-shaped elastic sleeve 1071 is respectively provided at both ends of the torque generating member 107, and the first rotating shaft 102 and the second rotating shaft 103 are respectively rotatably penetrated in the C-shaped elastic sleeve 1071, and the outer peripheral walls of the first rotating shaft 102 and the second rotating shaft 103 are respectively rotatably penetrated in the C-shaped elastic sleeve 1071, and the inner peripheral walls of the C-shaped elastic sleeve 1071 are both interference fit connected.
[0020] Specifically, a gear connecting portion 120 is respectively protruded from the outer peripheral wall in the middle of the first rotating shaft 102 and the second rotating shaft 103, and a connecting hole 108 is respectively recessed in the middle of the first gear 104 and the second gear 105. The cross-sections of the gear connecting portion 120 and the connecting hole 108 are both elliptical structures. The gear connecting portion 120 is respectively detachably embedded in the connecting hole 108. A limiting flange 130 is protruded from one end of the gear connecting portion 120 along the circumferential direction. The side wall of the second connecting piece 106 abuts against the limiting flange 130, and the side walls of the C-shaped elastic sleeve 1071 abut against the side walls of the second connecting piece 106, respectively, to limit the positions of the first gear 104 and the second gear 105.
[0021] Specifically, it also includes a fastening bolt 109, and a first threaded hole 1012 is respectively recessed at both ends of the U-shaped groove 1011, and an open groove 110 extending along the axial direction is respectively recessed at the two end walls of the first rotating shaft 102 and the second rotating shaft 103, and the two ends of the U-shaped groove 1011 are respectively detachably embedded in the open groove 110, and the two ends of the first rotating shaft 102 and the second rotating shaft 103 are respectively recessed with a second threaded hole 111, and the fastening bolt 109 is respectively screwed on the second threaded hole 111 and the first threaded hole 1012 in turn, so that the assembly between the first rotating shaft and the second rotating shaft and the first connecting plate is more convenient, quick, firm and reliable.
[0022] Specifically, the first connecting piece 101 is recessed with a plurality of bolt mounting holes 1013 to facilitate the mounting and fixing between the first connecting piece and the screen.
[0023] Specifically, the working principle and process of the utility model are:
[0024] The first rotating shaft and the second rotating shaft transmit power and torque through the meshing of the first gear and the second gear, thereby realizing transmission. The gear transmission has high accuracy, stability and reliability, thereby realizing precise movement and load transmission, high transmission efficiency, reliable operation, and high safety. The surface hardness of the gear is high, the load-bearing capacity is strong, the service life is long, and a constant transmission ratio can be guaranteed. The meshing of the gears can realize the smooth transmission of power output, so the transmission is smooth, avoiding sudden impact, and having strong compatibility: the gear transmission shaft can realize the flexibility and compatibility of manufacturing and design by adjusting the module and the number of teeth of the gear, so that the screen The opening and closing process is smoother, with good shock absorption and stability; a C-shaped elastic sleeve is provided at both ends of the torque generating part, and the first rotating shaft and the second rotating shaft are rotatably inserted into the C-shaped elastic sleeve respectively, and the outer circumferential walls of the first rotating shaft and the second rotating shaft are interference fit with the inner circumferential wall of the C-shaped elastic sleeve, and the torque between the C-shaped elastic sleeve and the first rotating shaft and the second rotating shaft can be adjusted to the optimal damping coefficient to avoid too loose or too tight fit, making it easier to rotate and open the screen, and the screen can be stably fixed at any angle, which effectively improves the experience during the screen flipping process and is highly practical.
[0025] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.
Claims
1. A gear transmission shaft used for opening and closing a screen, characterized in that: The invention comprises a first connecting piece, a first rotating shaft, a second rotating shaft, a first gear, a second gear, a second connecting piece and a torque generating member, wherein the first connecting piece is fixedly connected to the screen respectively, the first connecting piece is arranged in parallel and at intervals, the inner side wall of the first connecting piece is respectively recessed with a U-shaped groove, the two ends of the first rotating shaft and the second rotating shaft are respectively detachably fixedly connected to the two ends of the U-shaped groove, the first gear and the second gear are respectively detachably arranged on the first rotating shaft and the second rotating shaft, and rotate with the first rotating shaft and the second rotating shaft, the first gear and the second gear are meshingly connected, the second connecting piece is respectively arranged on both sides of the first gear and the second gear, the two ends of the second connecting piece are respectively recessed with a through hole, the first rotating shaft and the second rotating shaft are respectively rotatably penetrated in the through hole, the two side walls of the first gear and the second gear are respectively slidably abutted against the second connecting piece, the two ends of the torque generating member are respectively provided with a C-shaped elastic sleeve, the first rotating shaft and the second rotating shaft are respectively rotatably penetrated in the C-shaped elastic sleeve, and the outer peripheral wall of the first rotating shaft and the second rotating shaft and the inner peripheral wall of the C-shaped elastic sleeve are both interference fit connected.
2. The gear transmission shaft for opening and closing a screen according to claim 1, characterized in that: A gear connecting portion is respectively protruded from the outer peripheral wall in the middle of the first rotating shaft and the second rotating shaft, and a connecting hole is respectively recessed in the middle of the first gear and the second gear. The cross-sections of the gear connecting portion and the connecting hole are both elliptical structures. The gear connecting portion is respectively detachably embedded in the connecting hole. A limiting flange is protruded from one end of the gear connecting portion along the circumferential direction, and the side wall of the second connecting piece abuts against the limiting flange, and the side walls of the C-shaped elastic sleeve respectively abut against the side walls of the second connecting piece.
3. The gear transmission shaft for opening and closing a screen according to claim 1, characterized in that: It also includes a fastening bolt, wherein the two ends of the U-shaped groove are respectively recessed with a first threaded hole, and the two end walls of the first rotating shaft and the second rotating shaft are respectively recessed with an open groove extending in the axial direction, and the two ends of the U-shaped groove are respectively detachably embedded in the open groove, and the two ends of the first rotating shaft and the second rotating shaft are respectively recessed with a second threaded hole, and the fastening bolts are respectively screwed on the second threaded hole and the first threaded hole in sequence.
4. The gear transmission shaft for opening and closing a screen according to claim 1, characterized in that: The first connecting piece is recessed with a plurality of bolt mounting holes.