A mobile phone holder

Abstract

The utility model relates to the field of support especially relates to a cell phone support, including the base of cell phone support, with the base cooperation base cover board, first clamping piece and second clamping piece, be provided with guide assembly and screw drive assembly between first clamping piece and second clamping piece, screw drive assembly includes driving screw, fixed nut and passive screw of fixed on the base, through driving screw and fixed bolt cooperation, driving screw and passive screw cooperation, the movement direction of driving screw and passive screw is opposite, and the stroke ratio of driving screw and passive screw is 1:1, that is, through a simple structure realizes the synchronous movement of first clamping piece and second clamping piece in the clamping process of clamping piece to cell phone.

Description

Technical Field

[0001] This utility model relates to the field of brackets, and in particular to a mobile phone bracket. Background Technology

[0002] Mobile phones have become an extremely ubiquitous communication tool, and people now use them not only for basic communication but also for functions such as navigation and video viewing. Therefore, there are many scenarios and uses for mobile phones. In certain situations, it is often necessary to fix the phone in place for viewing, such as in car navigation, motorcycle or bicycle navigation. Because the vehicle may experience bumps and jolting during navigation, the phone holder needs to be relatively stable.

[0003] Many mobile phone holders are currently available, generally categorized by clamping method into single-sided and double-sided clamping. Single-sided clamping involves one side of the clamping part being fixed while the other side is movable to hold the phone. Double-sided clamping allows both ends of the clamping part to move, offering greater stability compared to single-sided clamping. Regarding the clamping mechanism, most commonly available holders provide clamping force through elastic components, rack and pinion assemblies, or helical pairs. Elastic components, however, may experience fatigue over time, leading to a loss of clamping effectiveness and a shorter lifespan. Rack and pinion assemblies are generally more complex, and the long, thin rack can be damaged during engagement with gears, further shortening their lifespan. Helical pairs, on the other hand, offer more stable transmission and a longer lifespan.

[0004] In existing technologies that use helical pairs to achieve dual-sided clamping, many solutions struggle to achieve simultaneous dual-sided clamping. While some patents have achieved synchronous movement, such as patent document CN218850815U, which discloses a mobile phone holder capable of synchronous extension and fixation. By rotating a screw with a knob, and with the cooperation of a fixing nut, the first clamping component moves. A driven nut is located at the end of the rotating screw, fitted inside a threaded tube, which is fixed to a second clamping component to drive the second clamping movement. This solution includes three helical pairs: a rotating screw and a fixing nut, a rotating screw and a driven nut, and a driven nut and a threaded tube. Its structure is relatively complex. Summary of the Invention

[0005] Based on the principle of achieving synchronous movement of clamping on both sides through a helical pair, the purpose of this utility model is to provide a mobile phone holder to solve the problem of complex structures in the prior art. It should be noted that the "synchronous movement" mentioned in this solution refers to the fact that the clamping components can move simultaneously during the clamping process on both sides, that is, move in opposite directions or separate at the same time, and is not limited to the fact that the strokes of the clamping components on both sides are the same at the same time.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a mobile phone holder, including a base of the mobile phone holder, a base cover plate that cooperates with the base, a first clamping member and a second clamping member respectively disposed on both sides of the base, a guide assembly and a screw transmission assembly disposed between the first clamping member and the second clamping member, the screw transmission assembly including an active screw, a fixing nut fixed on the base and a passive screw; the active screw passes through the first clamping member and is fixedly connected to a knob disposed on the outside of the first clamping member, the end of the active screw away from the knob is provided with an internal threaded hole and an external thread, the external thread being threadedly engaged with the fixing nut; one end of the passive screw is fixedly disposed with the second clamping member, the other end of the passive screw is threadedly engaged with the internal threaded hole of the active screw, the movement directions of the active screw and the passive screw are opposite.

[0007] Furthermore, the ratio of the stroke of the active screw relative to the base to the stroke of the passive screw relative to the base is 1:1.

[0008] Furthermore, the internal thread and external thread of the active screw are single-start threads, and the pitch of the internal thread and external thread is 2:1.

[0009] Furthermore, the guide assembly includes a guide rod and an elastic element.

[0010] Furthermore, there are two guide rods, which are fixedly installed inside the first clamping member and the second clamping member respectively, and are arranged in the same direction. A step is provided at one adjacent end of the two guide rods, and the two ends of the elastic member are respectively provided on the two steps.

[0011] Furthermore, there are two guide rods, which are fixedly installed inside the first clamping member and the second clamping member, respectively. One guide rod has a hole in the axial direction, and an elastic element is installed in the hole. The other guide rod is inserted into the hole, and the two ends of the elastic element abut against the side walls of the two guide rods respectively.

[0012] Furthermore, a limiting member is provided between the fixing nut and the first clamping member, the driving screw passes through the limiting member, and the maximum distance between the limiting member and the fixing nut is the maximum distance the first clamping member can move.

[0013] Furthermore, the phone holder also includes a mounting base, which is connected to the base.

[0014] Furthermore, the mounting base is provided with a spherical head.

[0015] Furthermore, a cushioning pad is provided at the bottom of the mounting base.

[0016] In summary, the advantages of using the technical solution of this utility model compared to traditional technical means are:

[0017] 1. This solution uses an active screw with external and internal threads. The external thread engages with the fixed nut to move the first clamping component; at the same time, the internal thread engages with the passive screw to move the second clamping component, thus achieving synchronous movement of the first and second clamping components.

[0018] 2. Compared with existing technologies, this solution, through the use of a helical pair, provides a more stable transmission and clamping effect. Attached Figure Description

[0019] The foregoing and other objects, features and advantages of this invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0020] Figure 1 This is the overall design concept of the mobile phone holder of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the mobile phone holder of this utility model;

[0022] Figure 3 This is a schematic diagram of the second internal structure of the mobile phone holder of this utility model;

[0023] Figure 4 For the present utility model Figure 3 A magnified view of part A;

[0024] Figure 5 This is a schematic diagram of the structure of the screw drive assembly of this utility model;

[0025] Figure 6 This is a schematic diagram of the second embodiment of the guide component of this utility model.

[0026] The attached figures are labeled as follows: base 100, cover plate 200, first clamping member 300, second clamping member 400, guide assembly 500, guide rod 510, elastic member 520, screw drive assembly 600, driving screw 610, driven screw 620, fixing nut 630, limiting member 640, knob 700, mounting base 800, ball head 810, buffer pad 820. Detailed Implementation

[0027] The following embodiments of this utility model serve as inspiration. Through the following description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The scope of protection of this utility model is not limited to the contents of the claims and description.

[0028] The present invention will be further described with reference to the following figures:

[0029] like Figure 1-6As shown, a mobile phone holder includes a base 100, a base cover 200 that mates with the base 100, a first clamping member 300 and a second clamping member 400 respectively disposed on both sides of the base 100, a guide assembly 500 and a screw drive assembly 600 disposed between the first clamping member 300 and the second clamping member 400, the screw drive assembly 600 including a driving screw 610, a fixing nut 630 fixed on the base 100 and a driven screw 620; the driving screw 610 passes through the first clamping member 300 and is fixedly connected to a knob 700 disposed on the outside of the first clamping member 300, the driving screw 610 being rotatable relative to the first clamping member 300. The end of the driving screw 610 away from the knob 700 is provided with an internal threaded hole and an external thread, the internal threaded hole being provided with an internal thread. The external thread engages with the fixed nut 630; one end of the driven screw 620 is fixedly mounted to the second clamping member 400, and the other end of the driven screw 620 engages with the internal threaded hole of the driving screw 610. The external thread of the driving screw 610 and the internal thread have opposite thread directions. The driving screw 610 and the driven screw 620 move in opposite directions.

[0030] The ratio of the stroke of the driving screw 610 relative to the base to the stroke of the driven screw 620 relative to the base is 1:1. "Stroke" refers to the distance traveled in the same amount of time. Specifically, the internal and external threads of the driving screw 610 are single-start threads. Since the driving screw 610 moves towards the driven screw 620 during rotation, the movement distance of the driving screw 610 must also be considered when calculating the movement distance of the driven screw 620. That is, when the knob 700 is turned, the driving screw 610 rotates, driving the first clamping member 300 to move, with a movement distance L1. If the external and internal thread pitches are the same, the movement distance L2 of the driven screw 620 is the same as L1 when the driving screw 610 does not move. In this design, the active screw 610, with the cooperation of the fixed nut 630, will move L1 towards the passive screw 620. Therefore, the moving distance L2 of the passive screw 620 in this design should be twice L1. Thus, the thread pitch of the internal thread hole is 2:1 compared to the external thread pitch.

[0031] It can also be a multi-start thread, where the stroke of a multi-start thread = lead x number of helix turns. The lead is the product of the pitch and the number of thread starts. Therefore, it can be set according to the actual number of starts.

[0032] The movement of the first clamping member 300 can be achieved by rotating the knob 700 to push the first clamping member 300 to move, or by providing a pusher plate on the drive screw 610. The pusher plate is positioned between the first clamping member 300 and the knob 700 and abuts against the outer side of the first clamping member 300. Rotating the knob 700 causes the drive screw 610 to rotate and move towards the second clamping member 400, causing the first clamping member 300 to also move towards the second clamping member 400.

[0033] In summary, the implementation principle of this solution is as follows: Rotating knob 700 drives the active screw 610 to rotate. The active screw 610 engages with the fixing nut 630, causing the active screw 610 to move while simultaneously pushing the first clamping member 300. The internal thread of the active screw 610 engages with the passive screw 620. Since the passive screw 620 is fixedly mounted on the second clamping member 400, the passive screw 620 moves towards the first clamping member 300, causing the second clamping member 400 to move towards the first clamping member 300. The first clamping member 300 and the second clamping member 400 engage, achieving a stable clamping state for the mobile phone. When it is necessary to release the mobile phone, simply rotate knob 700 in the opposite direction.

[0034] like Figure 2 As shown, the guide assembly 500 includes a guide rod 510 and an elastic element 520. The guide assembly 500 may be provided with one or more sets. The elastic element 520 is not shown in the figure.

[0035] Two guide rods 510 are fixedly mounted inside the first clamping member 300 and the second clamping member 400, respectively, and are arranged coaxially. A step is provided at an adjacent end of each guide rod 510, and the two ends of the elastic member 520 are respectively mounted on the two steps. When the first clamping member 300 and the second clamping member 400 move in opposite directions, the guide rods 510 also move in opposite directions, compressing the elastic member 520 between the two guide rods 510. When it is necessary to release the phone, the knob 700 is rotated in the opposite direction, and the first clamping member 300 and the second clamping member 400 open outwards under the action of the elastic member 520.

[0036] like Figure 6 As shown, in another embodiment, there are two guide rods 510, which are fixedly disposed inside the first clamping member 300 and the second clamping member 400, respectively. One guide rod 510 has a hole in the axial direction, and an elastic element 520 is installed in the hole. The other guide rod 510 is inserted into the hole, and the two ends of the elastic element 520 abut against the side walls of the two guide rods 510, respectively. When it is necessary to clamp the mobile phone, the elastic element 520 is compressed. When it is necessary to release the mobile phone, the knob 700 is rotated in the opposite direction, and the first clamping member 300 and the second clamping member 400 open under the action of the elastic element 520.

[0037] like Figure 4 As shown, in order to control the movement distance of the clamping member and prevent the thread of the active screw 610 from going out of the fixed nut 630, a limiting member 640 is provided between the fixed nut 630 and the first clamping member 300. The active screw 610 passes through the limiting member 640. The maximum distance between the limiting member 640 and the fixed nut 630 is the maximum movement distance of the first clamping member 300.

[0038] like Figure 1As shown, the phone holder also includes a mounting base 800, which is connected to the base 100, specifically by bolt connection, snap-fit ​​connection, or other methods.

[0039] In order to install the phone holder in the required scenario and facilitate the adjustment of the phone angle, the mounting base 800 is provided with a spherical head 810, which cooperates with the fixed base to facilitate angle adjustment.

[0040] To prevent the mounting base 800 from bumping into the fixed base during angle adjustment, a cushioning rubber pad 820 is provided at the bottom of the mounting base 800.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mobile phone holder, comprising a base for the mobile phone holder, a base cover plate cooperating with the base, a first clamping member and a second clamping member respectively disposed on both sides of the base, wherein a guide assembly and a screw drive assembly are disposed between the first clamping member and the second clamping member, characterized in that, The helical transmission assembly includes a driving screw, a fixed nut fixed to the base, and a driven screw. The driving screw passes through a first clamping member and is fixedly connected to a knob located outside the first clamping member. The end of the driving screw away from the knob is provided with an internal threaded hole and an external thread, and the external thread is threadedly engaged with the fixed nut. One end of the driven screw is fixedly disposed with a second clamping member, and the other end of the driven screw is threadedly engaged with the internal threaded hole of the driving screw. The driving screw and the driven screw move in opposite directions.

2. A mobile phone holder according to claim 1, characterized in that, The ratio of the stroke of the active screw relative to the base to the stroke of the passive screw relative to the base is 1:

1.

3. A mobile phone holder according to claim 2, characterized in that, The internal thread and external thread of the active screw are single-start threads, and the pitch of the internal thread and external thread is 2:

1.

4. A mobile phone holder according to claim 1, characterized in that, The guiding assembly includes a guide rod and an elastic element.

5. A mobile phone holder according to claim 4, characterized in that, There are two guide rods, which are fixedly installed on the inner sides of the first clamping member and the second clamping member, and are arranged in the same axis. A step is provided at one adjacent end of the two guide rods, and the two ends of the elastic member are respectively provided on the two steps.

6. A mobile phone holder according to claim 4, characterized in that, There are two guide rods, which are fixedly installed inside the first clamping member and the second clamping member respectively. One guide rod has a hole in the axial direction, and an elastic element is installed in the hole. The other guide rod is inserted into the hole, and the two ends of the elastic element abut against the side walls of the two guide rods respectively.

7. A mobile phone holder according to claim 1, characterized in that, A limiting member is provided between the fixing nut and the first clamping member, the driving screw passes through the limiting member, and the maximum distance between the limiting member and the fixing nut is the maximum distance the first clamping member moves.

8. A mobile phone holder according to claim 1, characterized in that, The phone holder also includes a mounting base, which is connected to the base.

9. A mobile phone holder according to claim 8, characterized in that, The mounting base is provided with a spherical head.

10. A mobile phone holder according to claim 8, characterized in that, The bottom of the mounting base is provided with a cushioning rubber pad.

Images