Buckling device
Through the design of the snapping device, the sliding block is driven by the elastic body and the limiting block, and the camera is lifted and lowered in combination with the speed reduction mechanism, solving the high driving cost and noise of the stepper motor, and improving the service life and user experience of the camera.
Patent Information
- Application Number
- CN202422397817.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, the stepper motor drive camera lifting device is costly, prone to failure and noise, affecting user experience and marketing promotion.
The fastening device is adopted, including a bracket, a sliding block and a limiting block. The sliding block is driven to slide between different positions by using an elastic body. The position is fixed by the limiting block, and the camera is lifted and lowered in combination with the speed reduction mechanism and the guide block to avoid motor driving.
It reduces the cost of the camera lifting device, avoids motor failures and noise, and improves the service life and user experience of the camera.
Smart Images
Figure CN223157177U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of mechanical structure design, and particularly relates to a fastening device. Background Art
[0002] In actual production, with the continuous development of mobile terminals, in order to enable mobile terminals to have a 100% screen-to-body ratio, that is, to achieve a full-screen display, the front camera of the mobile terminal can be arranged inside the mobile terminal, and a lifting device is used to drive the camera to pop out from one side of the mobile terminal and retract it inside the mobile terminal when not in use.
[0003] When the camera is not in use by the user, it needs to press a button and descend to reset to protect privacy. When the camera is turned on, it needs to raise the camera to facilitate the photographing function. In terms of realizing the lifting of the camera, the most common implementation is to use a stepper motor for driving, and the cooperation between the screw and the nut is used to realize the lifting and lowering of the camera. It realizes the operation of the stepper motor by the controller outputting pulse signals and direction signals, and it is necessary to set up a pure hardware circuit or software program in advance to generate these two control signals. Therefore, the control cost is high, which is not conducive to market development. And when the motor fails, the lifting function of the camera cannot be used normally, and the motor idling will generate noise, which not only affects the user's product usage experience, but also limits the popularization and application of the lifting camera. Summary of the Invention
[0004] (1) Technical Problems to be Solved
[0005] The utility model provides a fastening device, aiming to solve the problems of high motor output cost, eliminating the noise generated by motor failure and idling, improving the service life of the camera, improving the user experience and being conducive to market development.
[0006] (2) Technical Solutions
[0007] The utility model provides a fastening device, including a bracket, a sliding block and a limiting block. The sliding block is slidably connected inside the bracket, the limiting block is rotatably connected inside the bracket, an elastic body is arranged between the bracket and the sliding block, and the elastic body is used to drive the sliding block to slide between a first position and a second position. The limiting block is used to fix the sliding block at the first position or the second position.
[0008] Furthermore, a track is arranged on the sliding block, a protruding member is fixedly arranged on the limiting block, and the protruding member is slidably connected inside the track.
[0009] Further, the track includes an inner wall and an outer wall. There are concave points Q1, convex points Q2, Q3, and Q4 on the inner wall, and convex point P1, concave points P2, P3, and P4 on the outer wall. When the protruding member abuts against the concave point Q1, the slider is located at the first position; when the protruding member abuts against the concave point P3, the slider is located at the second position.
[0010] Further, a shaft pin is fixedly provided at the lower part of the limiting block, and a connection hole corresponding to the shaft pin is provided on the bracket. The shaft pin is inserted into the connection hole and is rotatably connected to the connection hole.
[0011] Further, a hook is provided at the upper part of the limiting block, and a sliding surface corresponding to the hook is provided at the top of the peripheral wall of the bracket. The hook is buckled on the peripheral wall of the bracket and is slidably connected to the sliding surface.
[0012] Further, it further includes a moving block and a fixed block. The moving block is fixedly connected to the slider, and the fixed block is fixedly connected to the bracket; a speed reduction mechanism is provided between the moving block and the fixed block. The speed reduction mechanism includes a roller and a guide block. A fixed column is provided on the moving block. The roller is sleeved and rotatably connected to the fixed column. The guide block is fixedly connected to the fixed block. The roller is rotatably connected to the guide block, and the extending direction of the guide block is consistent with the sliding direction of the slider.
[0013] Further, a first set of teeth is provided on the peripheral wall of the roller, and a second set of teeth corresponding to the first set of teeth is provided on the guide block. The first set of teeth and the second set of teeth are meshed and connected.
[0014] Further, the speed reduction mechanism further includes an elastic member. One end of the elastic member elastically presses against the roller, and the other end elastically presses against the moving block to decelerate the rotation of the roller.
[0015] Further, a guide rail is further provided on the fixed block, and a guide block adapted to the guide rail is provided on the moving block. The guide block is slidably connected within the guide rail.
[0016] Further, the elastic body is a spring or a soft silicone material.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] A fastening device, comprising a bracket, a sliding block and a limiting block, wherein the sliding block is slidably connected within the bracket, the limiting block is rotatably connected within the bracket, an elastic body is provided between the bracket and the sliding block, the elastic body is used to drive the sliding block to slide between a first position and a second position, and the limiting block is used to fix the sliding block at the first position or the second position, aiming to solve the problems of high cost of motor output, eliminate the noise generated by motor faults and idling, improve the service life of the camera, enhance the user experience and facilitate market expansion. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a connection diagram of the bracket, the sliding block and the limiting block of the present utility model.
[0020] Figure 2 It is a three-dimensional schematic diagram of the limiting block of the present utility model.
[0021] Figure 3 It is an external view schematic diagram of the bracket and the limiting block of the present utility model Figure 1 。
[0022] Figure 4 It is a schematic diagram of the track path of the present utility model Figure 2 。
[0023] Figure 5 It is a comparison schematic diagram of the track concave points and convex points of the present utility model Figure 1 。
[0024] Figure 6 It is a comparison schematic diagram of the track concave points and convex points of the present utility model Figure 2 。
[0025] Figure 7 It is Figure 5 a schematic plan view of the track path from Q1 to Q3 in
[0026] Figure 8 It is Figure 6 a schematic plan view of the track path from Q3 to Q1 in
[0027] Figure 9 It is a schematic structural diagram of the first position and the second position of the present utility model.
[0028] Figure 10 It is a schematic structural diagram of the moving block and the fixed block of the present utility model Figure 1 。
[0029] Figure 11 It is a schematic structural diagram of the moving block and the fixed block of the present utility model Figure 2 。
[0030] Figure 12 It is a schematic structural diagram of the speed reduction mechanism of the present utility model.
[0031] Figure 13 This is a three-dimensional structure diagram of the roller of the present utility model.
[0032] Figure 14 This is an exploded view of the roller and elastic member of the present utility model.
[0033] Figure 15 This is the front elevation of the lifting of the present utility model.
[0034] Figure 16 This is the rear elevation of the lifting of the present utility model.
[0035] Reference numerals: 1 - bracket, 11 - sliding surface, 12 - connecting hole, 2 - sliding block, 21 - track, 211 - inner wall, 212 - outer wall, 3 - limiting block, 31 - protruding member, 32 - shaft pin, 33 - hook, 4 - elastic body, 5 - moving block, 51 - fixing column, 52 - guiding block, 53 - pressing part, 54 - imaging mechanism, 6 - fixing block, 61 - guide rail, 7 - deceleration mechanism, 71 - roller, 711 - first gear tooth, 72 - guiding block, 721 - second gear tooth, 73 - elastic member, 8 - display screen. Detailed implementation manners
[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.
[0037] As Figures 1-9 shown, the present utility model provides a fastening device, including a bracket 1, a sliding block 2 and a limiting block 3. The sliding block 2 is slidably connected within the bracket 1, the limiting block 3 is rotatably connected within the bracket 1, an elastic body 4 is provided between the bracket 1 and the sliding block 2, the elastic body 4 is used to drive the sliding block 2 to slide between a first position and a second position, and the limiting block 3 is used to fix the sliding block 2 at the first position or the second position. Since one end of the elastic body 4 is always in a spring-loaded state, the elastic body 4 always generates an upward force to drive the sliding block 2 to move.
[0038] As Figures 2-4 shown, a track 21 is provided on the sliding block 2, a protruding member 31 is fixedly provided on the limiting block 3, and the protruding member 31 is slidably connected within the track 21. The track 21 is an irregular annular groove. It should be noted that the present utility model provides the guiding of the moving track through the relative movement of the protruding member 31 within the track 21.
[0039] As Figure 4As shown in Fig. 8 or 9, the track 21 includes an inner wall 211 and an outer wall 212. Concave points Q1, convex points Q2, Q3, and Q4 are provided on the inner wall 211, and convex points P1, concave points P2, P3, and P4 are provided on the outer wall 212. When the protruding member 31 abuts against the concave point Q1, the slider 2 is located at the first position; when the protruding member 31 abuts against the concave point P3, the slider 2 is located at the second position.
[0040] Specifically, as Figure 5 and Figure 6 shown, the convex points Q2, Q3, and Q4 are triangularly distributed. The convex points Q2 and Q4 are on both sides of the vertical extension line of the convex point Q3. The convex point Q2 is on the right side of the vertical extension line of the convex point Q3, and the convex point Q4 is on the left side of the vertical extension line of the convex point Q3. The concave point Q1 is horizontally below the convex points Q2 and Q4 and on the left side of the vertical extension line of the convex point Q3. The convex point Q3 is below the concave point Q1; the concave points P2, P3, and P4 are triangularly distributed. The concave points P2 and P4 are on both sides of the vertical extension line of the concave point P3. The concave point P2 is on the right side of the vertical extension line of the concave point P3, and the concave point P4 is on the left side of the vertical extension line of the concave point P3. The convex point P1 is horizontally below the concave points P2 and P4 and on the left side of the vertical extension line of the concave point P3. The concave point P3 is below the convex point P1. The function of the concave points is for positioning, and the function of the convex points is for sliding guiding and limiting.
[0041] Specifically, referring to Figure 7 and Figure 8 , the concave point Q1 is on the right side of the vertical extension line of the convex point P1 and below the horizontal extension line of the convex point P1. The convex point Q2 is on the left side of the vertical extension line of the concave point P2 and below the horizontal extension line of the concave point P2. The convex point Q3 is on the right side of the vertical extension line of the concave point P3 and above the horizontal extension line of the concave point P3. The convex point Q4 is on the left side of the vertical extension line of the concave point P4 and below the horizontal extension line of the concave point P4; finally, a sliding switching path in which the slider 2 rotates clockwise around the limiting block 3 in a cycle can be formed.
[0042] Specifically, as Figure 9 shown in the left legend, when the protruding member 31 abuts against the concave point Q1, the positions of the slider 2 and the bracket 1 are at the first position;
[0043] Specifically, as Figure 9 shown in the right legend, when the protruding member 31 abuts against the concave point P3, the positions of the slider 2 and the bracket 1 are at the second position.
[0044] As Figure 2 and Figure 13As shown, a shaft pin 32 is fixedly provided at the lower part of the limit block 3, and a connection hole 12 corresponding to the shaft pin 32 is provided on the bracket 1. The shaft pin 32 is inserted into the connection hole 12 and is rotatably connected to the connection hole 12. When the shaft pin 32 rotates, the shaft pin 32 generates a centrifugal inertial force, and the direction of the inertial force is away from the axis. At this time, the resultant moment is not zero, causing the limit block 3 to generate an imbalance of left and right swaying, causing the limit block 3 to swing left and right.
[0045] As Figure 3 As shown in FIG. 13, a hook 33 is provided at the upper part of the limit block 3, and a sliding surface 11 corresponding to the hook 33 is provided at the top of the peripheral wall of the bracket 1. The hook 33 is fastened to the peripheral wall of the bracket 1 and is slidably connected to the sliding surface 11.
[0046] As Figures 10-12 As shown, the fastening device further includes a moving block 5 and a fixed block 6. The moving block 5 is fixedly connected to the sliding block 2, and the fixed block 6 is fixedly connected to the bracket 1;
[0047] As Figures 12-13 As shown, a speed reduction mechanism 7 is provided between the moving block 5 and the fixed block 6. The speed reduction mechanism 7 includes a roller 71 and a guide block 72. A fixed column 51 is provided on the moving block 5. The roller 71 is sleeved and rotatably connected to the fixed column 51. The guide block 72 is fixedly connected to the fixed block 6. The roller 71 is rotatably connected to the guide block 72, and the extending direction of the guide block 72 is consistent with the sliding direction of the sliding block 2. When the sliding block 2 is in the first position, at this time, the protruding member 31 is located at the concave point Q1, and there is no relative movement between the sliding block 2 and the limit block 3. The moving block 5 does not protrude out of the exposed display screen 8. A pressing portion 53 is provided on the moving block 5. At this time, when the pressing portion 53 is pressed, the moving block 5 is subjected to an external force, and the moving block 5 moves downward. The track 21 moves with the moving block 5. The protruding member 31 moves from the concave point Q1 to the convex point P1 and is guided by the convex point P1 to slide to the right to the concave point P2. At this time, the pressing on the pressing portion 53 is released, and the sliding block 2 moves upward. The track 21 moves with the sliding block 2. The protruding member 31 moves from the concave point P2 to the convex point Q2 and is guided by the convex point Q2 to slide to the left and move to the concave point P3, completing the switching of the moving block 5 from inside the display screen 8 to protruding outside the display screen 8, that is, the sliding block 2 completes the switching from the first position to the second position, realizing the rising of the moving block 5.
[0048] Continuing, refer to Figures 15-16, if it is necessary to retract the moving block 5 into the display screen 8, only need to press the pressing part 53 again. The protruding part 31 moves from the concave point P3 to the convex point Q3 and is guided by the convex point Q3 to slide leftward to the concave point P4. When the pressing on the pressing part 53 is released, the protruding part 31 moves from the concave point P4 to the convex point Q4 and is guided by the convex point Q4 to slide rightward to the concave point Q1, realizing the descent of the sliding block 2 and retracting inward into the display screen 8; the roller 71 is fixedly connected to the moving block 5 and moves synchronously. When a relative movement occurs between the moving block 5 and the fixed block 6, the guiding block 72 can play a guiding role only when the extending direction of the guiding block 72 is consistent with the moving direction of the moving block 5.
[0049] As Figures 12-14 shown, a first set of teeth 711 is provided on the peripheral wall of the roller 71, and a second set of teeth 721 corresponding to the first set of teeth 711 is provided on the guiding block 72. The first set of teeth 711 and the second set of teeth 721 are meshed and connected to realize the movement of the moving block 5 relative to the fixed block 6.
[0050] As Figure 14 shown, the deceleration mechanism 7 further includes an elastic member 73. One end of the elastic member 73 elastically presses against the roller 71, and the other end elastically presses against the moving block 5 to decelerate the rotation of the roller 71. The elastic member 73 is distorted to generate a damping force to realize the adjustment and control of the movement. The elastic member 73 generates a frictional force with the roller 71. Through the action of the frictional force and the elastic force, a damping effect of relative rotation is generated between the roller 71 and the elastic member 73. When an external force acts on the roller 71, the frictional force between the roller 71 and the elastic member 73 will offset a part of the external force, thereby slowing down the moving speed of the sliding block 2.
[0051] As Figures 11-12 shown, a guide rail 61 is further provided on the fixed block 6, and a guide block 52 adapted to the guide rail 61 is provided on the moving block 5. The guide block 52 is slidably connected in the guide rail 61. During the process of the moving block 5 extending outward or retracting inward, the guide block 52 slides on the guide rail 61 to prevent the moving block 5 from shifting during the lifting process, resulting in the structure of the moving block 5 being stuck during the extension or retraction process, thereby damaging the structure of the moving block 5;
[0052] Specifically, the elastic body 4 is disposed in the guide rail 61, and one end of the elastic body 4 elastically presses against the fixed block 6, and the other end elastically presses against the bottom of the guide block 52. Since the elastic body 4 is always in a compressed state, the elastic body 4 always generates an upward force to drive the moving block 5 and the sliding block 2 to move upward synchronously.
[0053] Further, the elastic body 4 is preferably a spring or a soft silicone material.
[0054] In practical applications, the fastening device is usually applied to the display screen 8. The fixed block 6 is fixedly connected to the housing of the display screen 8, so that the moving block 5 can move up and down relative to the display screen 8;
[0055] As Figures 15-16 shown, a camera mechanism 54 is further provided on the moving block 5. The camera mechanism 54 is located at the upper part of the moving block 5, and the camera mechanism 54 moves synchronously with the moving block 5. When the track 21 slides along the clockwise path from the concave point Q1 to the concave point P3, the camera mechanism 54 rises synchronously with the moving block 5 and partially exposes outside the display screen 8. When the track 21 reaches the concave point P3, the sliding block 2 drives the moving block 5 to rise to the highest position, and the camera mechanism 54 is completely exposed outside the display screen 8. When the track 21 slides along the clockwise path from the concave point P3 to the concave point Q1, the camera mechanism 54 descends with the moving block 5, and part of the camera mechanism 54 is still exposed outside the display screen 8. When the track 21 reaches the concave point Q1, the moving block 5 descends to the lowest position, and the camera mechanism 54 completely retracts inside the display screen 8.
[0056] The working principle of the present invention will be described in detail below;
[0057] When the pressing part 53 of the moving block 5 is pressed, the guide block 52 on the moving block 5 slides on the guide rail 61, and the protruding part 31 moves from the concave point Q1 to the convex point P1 and is guided by the convex point P1 to slide to the right to the concave point P2. At this time, the pressing on the pressing part 53 is released, the sliding block 2 moves upward, the protruding part 31 moves from the concave point P2 to the convex point Q2 and is guided by the convex point Q2 to slide to the left to the concave point P3. The roller 71 rolls along the guide block 72 to slow down the movement of the moving block 5. The camera mechanism 54 of the moving block 5 extends and exposes outside the display screen 8. Then, when the pressing part 53 is pressed again, the protruding part 31 moves from the concave point P3 to the convex point Q3 and is guided by the convex point Q3 to slide to the left to the concave point P4. When the pressing on the pressing part 53 is released, the protruding part 31 moves from the concave point P4 to the convex point Q4 and is guided by the convex point Q4 to slide to the right to the concave point Q1, realizing the descent of the camera mechanism 54 of the moving block 5 and contracting inward into the display screen 8. The sliding block 5 slides around the protruding part 31 along the clockwise direction in a cyclic switching path, realizing the pop-up of the camera mechanism 54 from one side of the mobile terminal and retracting it into the mobile terminal when not in use, realizing the shooting function of the mobile terminal. And the present invention does not need to rely on the motor drive to conduct lifting, and there will be no situation where the motor failure affects the lifting of the camera mechanism 54, improving the service life of the lifting camera and reducing the cost, and avoiding the noise generated by the motor idling, improving the user experience.
[0058] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.
[0059] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.
Claims
1. A fastening device, characterized in that, It includes a bracket (1), a sliding block (2) and a limiting block (3). The sliding block (2) is slidably connected inside the bracket (1), the limiting block (3) is rotatably connected inside the bracket (1), an elastic body (4) is provided between the bracket (1) and the sliding block (2), and the elastic body (4) is used to drive the sliding block (2) to slide between a first position and a second position. The limiting block (3) is used to fix the sliding block (2) at the first position or the second position.
2. The snap-fitting device according to claim 1, characterized in that, A track (21) is provided on the sliding block (2), and a protrusion (31) is fixedly provided on the limiting block (3). The protrusion (31) is slidably connected inside the track (21).
3. The snap-fitting device according to claim 2, wherein, The track (21) includes an inner wall (211) and an outer wall (212). Concave points Q1, convex points Q2, convex points Q3, and convex points Q4 are provided on the inner wall (211), and convex point P1, concave points P2, P3, and P4 are provided on the outer wall (212). When the protrusion (31) abuts against the concave point Q1, the sliding block (2) is at the first position; when the protrusion (31) abuts against the concave point P3, the sliding block (2) is at the second position.
4. The snap-fastening device according to claim 1, characterized in that, A pin (32) is fixedly provided at the lower part of the limiting block (3), and a connection hole (12) corresponding to the pin (32) is provided on the bracket (1). The pin (32) is inserted into the connection hole (12) and is rotatably connected to the connection hole (12).
5. The snap-fit device according to claim 4, wherein, A hook (33) is provided at the upper part of the limiting block (3), and a sliding surface (11) corresponding to the hook (33) is provided at the top of the peripheral wall of the bracket (1). The hook (33) is fastened to the peripheral wall of the bracket (1) and is slidably connected to the sliding surface (11).
6. The snap-fitting device according to claim 1, characterized in that, It further includes a moving block (5) and a fixed block (6). The moving block (5) is fixedly connected to the sliding block (2), and the fixed block (6) is fixedly connected to the bracket (1); a speed reduction mechanism (7) is provided between the moving block (5) and the fixed block (6). The speed reduction mechanism (7) includes a roller (71) and a guide block (72). A fixed column (51) is provided on the moving block (5). The roller (71) is sleeved and rotatably connected to the fixed column (51). The guide block (72) is fixedly connected to the fixed block (6). The roller (71) is rotatably connected to the guide block (72), and the extending direction of the guide block (72) is kept consistent with the sliding direction of the sliding block (2).
7. The snap-fit device according to claim 6, wherein, Teeth one (711) are provided on the peripheral wall of the roller (71), and teeth two (721) corresponding to the teeth one (711) are provided on the guide block (72). The teeth one (711) and the teeth two (721) are meshed and connected.
8. A snap-fitting device according to claim 7, characterized in that, The speed reduction mechanism (7) further includes an elastic member (73). One end of the elastic member (73) elastically presses against the roller (71), and the other end elastically presses against the moving block (5) to decelerate the rotation of the roller (71).
9. A snap-fitting device according to claim 6, characterized in that The fixed block (6) is further provided with a guide rail (61), the moving block (5) is provided with a guide block (52) adapted to the guide rail (61), and the guide block (52) is slidably connected within the guide rail (61).
10. A snap-fit device according to claim 1, characterized in that, The elastic body (4) is a spring or a soft silicone material.