Mobile terminal clamping bracket

Abstract

The present invention provides a mobile terminal clamping bracket for clamping a mobile terminal, comprising a housing, a first clamping assembly and a second clamping assembly, wherein the first clamping assembly and the second clamping assembly are respectively located at opposite ends of the housing and are used to clamp the mobile terminal together; a transmission assembly is further provided in the housing, and the transmission assembly cooperates with the first clamping assembly and / or the second clamping assembly through a screw nut pair to guide the first clamping assembly and the second clamping assembly to move relative to each other in the clamping direction. In the mobile terminal clamping bracket of the present invention, the transmission assembly forms a screw nut pair transmission with the first clamping arm and / or the second clamping arm through a screw rod, and the screw nut pair transmission is stable and reliable, avoiding the "tooth jump" problem of the gear rack, and can provide a more stable and reliable clamping.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile terminal accessories, and in particular to a mobile terminal clamping bracket. Background Art

[0002] With the development of smart phones, mobile phones have become an indispensable part of people's lives. People often need to use mobile phones for navigation while driving. However, cars will experience large vibrations during driving, so mobile phones or other electronic products need to be installed and fixed through mobile terminal clamping brackets.

[0003] Taking the existing button-unlocking mobile phone holder as an example, a transmission gear and rack structure that can realize the movement of the clamping arm is usually provided inside. However, the mobile phone holder with this structure is prone to "tooth jumping" problems during use, that is, when in the unlocked state, the clamping arm moves too fast, causing the rack and gear that were originally tightly meshed together to disengage and shift, so that the clamping position of the clamping arm changes, resulting in the holder being unable to clamp the mobile phone.

[0004] Therefore, there is an urgent need to solve the problem of poor clamping caused by gear rack jumping during clamping of the mobile terminal.

[0005] Therefore, this case proposes a new transmission structure, which, through the transmission design of the ratchet and the screw, prevents the bracket from having problems such as tooth jumping, thereby improving the reliability of the bracket. Summary of the invention

[0006] In view of this, the present invention provides a mobile terminal clamping bracket with stable and reliable clamping.

[0007] The present invention provides a mobile terminal clamping bracket for clamping a mobile terminal, comprising a shell, a first clamping assembly and a second clamping assembly, wherein the first clamping assembly and the second clamping assembly are respectively located at opposite ends of the shell and are used to jointly clamp the mobile terminal; a transmission assembly is further provided in the shell, and the transmission assembly cooperates with the first clamping assembly and / or the second clamping assembly through a screw nut pair to guide the first clamping assembly and the second clamping assembly to move relative to each other in a clamping direction.

[0008] In one embodiment, the transmission assembly includes a first screw with an axis parallel to the clamping direction, the first clamping member includes a first clamping arm and a first clamping arm reset member, the first clamping arm reset member provides a force for the first clamping arm to open relative to the second clamping assembly in the clamping direction, and the first clamping arm is provided with a first sliding portion that cooperates with the first screw thread.

[0009] In one embodiment, the transmission assembly includes a second screw coaxial with the first screw, and the second clamping member includes a second clamping arm and a second clamping arm reset member, the second clamping arm reset member provides a force for the second clamping arm to open relative to the first clamping arm in the clamping direction, and the second clamping arm is provided with a second sliding portion to cooperate with the second screw thread.

[0010] In one embodiment, the thread directions of the first screw and the second screw are opposite.

[0011] In one embodiment, the mobile terminal clamping bracket further comprises a control assembly disposed in the housing, a ratchet is coaxially disposed in the transmission assembly with the first lead screw, and a pawl selectively matched with the ratchet is disposed in the control assembly.

[0012] In one embodiment, the control assembly includes an operating rod and an operating rod reset member, the operating rod includes a rotating shaft, a pressing end and a locking end, the axis of the rotating shaft is parallel to the clamping direction, the pressing end and the locking end are respectively located on two opposite sides of the rotating shaft, the pawl is arranged at the end of the locking end, and the operating rod reset member provides a force to make the pawl move toward the ratchet teeth of the ratchet wheel.

[0013] In one embodiment, the operating rod reset member is arranged between the locking end and the rear shell of the shell, and the rear shell is provided with an unlocking button mounting hole corresponding to the pressing end, and an unlocking button fixedly connected to the locking end is installed in the unlocking button mounting hole.

[0014] In one embodiment, the operating rod reset member is a compression spring, one end of which is sleeved on a reset member positioning column formed on one side of the locking end, and the other end is placed in an operating rod reset member mounting seat formed on the rear shell.

[0015] In one embodiment, the control assembly further includes a shaft positioning member and an operating rod positioning member, wherein the shaft positioning member cooperates with the shaft mounting seat on the rear shell to mount the shaft to the shell; the operating rod positioning member mounts the locking end and the operating rod reset member to the shell.

[0016] In one embodiment, the first clamping arm reset member and the second clamping arm reset member are springs;

[0017] Alternatively, the first clamping arm reset member includes two magnets with opposite polarities, which are fixed on the first clamping arm and at corresponding positions in the shell, and the second clamping arm reset member includes two magnets with opposite polarities, which are fixed on the second clamping arm and at corresponding positions in the shell.

[0018] To sum up, the mobile terminal clamping bracket of the present invention has at least the following beneficial effects: the transmission component forms a screw-nut pair transmission through the screw and the first clamping arm and / or the second clamping arm, and the screw-nut pair transmission is smooth and reliable, avoiding the "tooth jumping" problem of the gear rack, and can provide more stable and reliable clamping; the clamping arm is locked and unlocked by arranging a transmission component and a control component in the shell, and the ratchet in the transmission component and the pawl at the locking end of the operating rod in the control component selectively cooperate to achieve locking and unlocking; in the control component, the operating rod adopts a lever structure, which cooperates with the operating rod reset member, and the pressing end of the operating rod is controlled by the unlocking button, so that the unlocking operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram of a mobile terminal clamping bracket in a clamped state according to a preferred embodiment of the present invention;

[0020] Figure 2 for Figure 1 A three-dimensional schematic diagram of a mobile terminal holding bracket in an open state;

[0021] Figure 3 for Figure 1 A three-dimensional exploded schematic diagram of a mobile terminal clamping bracket;

[0022] Figure 4 for Figure 2 A three-dimensional exploded schematic diagram of another angle of the mobile terminal clamping bracket;

[0023] Figure 5 for Figure 3 A further exploded perspective view of the mobile terminal holding bracket;

[0024] Figure 6 for Figure 5 A three-dimensional exploded schematic diagram of another angle of the mobile terminal clamping bracket;

[0025] Figure 7 for Figure 2 A three-dimensional schematic diagram of a mobile terminal holding bracket with a front shell disassembled;

[0026] Figure 8 for Figure 1 A three-dimensional schematic diagram of a mobile terminal clamping bracket cut along a clamping direction;

[0027] Fig. 9 for Figure 8 A front view of the mobile terminal clamping bracket in a clamped state after removing the front shell;

[0028] Fig.10 for Fig. 9 A front view of the mobile terminal holding bracket in an open state;

[0029] Fig.11 for Figure 1 A side view of the mobile terminal clamping bracket when the pressing end is pressed after being cut along a plane perpendicular to the clamping direction;

[0030] Fig.12 for Fig.11 A side view of the mobile terminal holding bracket after the pressing end is released.

[0031] The components in the figure are labeled as follows:

[0032] Shell 10 (including front shell 11, rear shell 12; transmission assembly mounting portion 121, control assembly mounting portion 122, first clamping arm slide slot 123, second clamping arm slide slot 124, support seat 125; first guide wheel mounting seat 1211, second guide wheel mounting seat 1212; shaft mounting seat 1221, unlock button mounting hole 1222, operating rod reset member mounting seat 1223);

[0033] A first clamping assembly 20 (including a first clamping arm 21, a first clamping arm reset member 22, and a first sliding portion 212);

[0034] The second clamping assembly 30 (including the second clamping arm 31, the second clamping arm reset member 32, and the second sliding portion 312);

[0035] Transmission assembly 40 (including ratchet 41, first lead screw 42, second lead screw 43, first guide wheel 44, second guide wheel 45);

[0036] The control assembly 50 (including the operating rod 51, the operating rod reset member 52, the rotating shaft positioning member 53, the operating rod positioning member 54; the rotating shaft 511, the pressing end 512, the locking end 513, and the reset member positioning column 514). DETAILED DESCRIPTION

[0037] Before describing the embodiments in detail, it should be understood that the present invention is not limited to the detailed structure or component arrangement described below or in the accompanying drawings in this application. The present invention may be an embodiment implemented in other ways. Moreover, it should be understood that the words and terms used herein are only used for descriptive purposes and should not be interpreted restrictively. The words "including", "comprising", "having" and the like used herein are meant to include the items listed thereafter, their equivalents and other additional items. In particular, when describing "a certain element", the present invention does not limit the number of the element to one, but may also include multiple elements.

[0038] The present invention provides a mobile terminal clamping bracket, which is fixed in the car with an air outlet clip, a suction cup base and other devices to clamp the mobile terminal. Figures 1 to 12The mobile terminal clamping bracket of the first preferred embodiment of the present invention includes a shell 10, a first clamping assembly 20 and a second clamping assembly 30. The shell 10 includes a front shell 11 and a rear shell 12 that are buckled together. The front shell 11 and the rear shell 12 are fixedly connected to install the first clamping assembly 20 and the second clamping assembly 30 between the front shell 11 and the rear shell 12. The first clamping assembly 20 and the second clamping assembly 30 are respectively arranged on the two opposite sides of the bearing seat formed by the front shell 11 and the rear shell 12. The mobile terminal is placed on the front end surface of the front shell 11 from the front, and the first clamping assembly 20 and the second clamping assembly 30 clamp the mobile terminal placed therebetween from both sides. A support seat (support seat 125) can also be arranged at the rear of the rear shell 12, which is used to connect with the air outlet clip, the suction cup base, etc. to clamp the mobile terminal.

[0039] The first clamping assembly 20 includes a first clamping arm 21 and a first clamping arm reset member 22. The first clamping arm 21 is slidably connected to the rear shell 12 through a first clamping arm slot 123 on one side of the rear shell 12, and the front shell 11 is fixed to the rear shell 12 through a fastener. The first clamping arm 21 clamps the mobile terminal from one side, and the first clamping arm reset member 22 provides the first clamping arm 21 with a force opposite to the clamping direction, so that the first clamping arm 21 moves in the opening direction. The inner side of the first clamping arm 21 in the clamping direction may be provided with an elastic contact material, so that the first clamping arm 21 contacts the side of the mobile terminal more gently, and the contact friction can also be increased to prevent the mobile terminal from sliding.

[0040] The second clamping assembly 30 includes a second clamping arm 31 and a second clamping arm reset member 32. The second clamping arm 31 is slidably connected to the rear shell 12 through a second clamping arm slot 124 on one side of the rear shell 12, and the front shell 11 is fixed to the rear shell 12 through a fastener. The second clamping arm 31 clamps the mobile terminal from the side opposite to the first clamping arm 21, and the second clamping arm reset member 32 provides the second clamping arm 31 with a force opposite to the clamping direction, so that the second clamping arm 31 moves in the opening direction. Similarly, the inner side of the second clamping arm 31 in the clamping direction may be provided with an elastic contact material, so that the second clamping arm 31 contacts the side of the mobile terminal more gently, and the contact friction can also be increased to prevent the mobile terminal from sliding.

[0041] The first clamping arm reset member 22 and the second clamping arm reset member 32 are preferably springs, and in other embodiments, magnets with opposite polarities may be used to achieve this. The two magnets with opposite polarities are respectively fixed on the first clamping arm reset member 22 and inside the housing 10, and on the second clamping arm reset member 32 and inside the housing 10.

[0042] In the illustrated embodiment, both the first clamping arm 21 and the second clamping arm 31 can move in the clamping direction relative to the housing 10. In other embodiments, one of the first clamping arm 21 and the second clamping arm 31 can be integrally connected or fixedly mounted on one side of the housing 10, and the other can be slidably connected to the housing 10. The mobile terminal clamping bracket also includes a transmission assembly 40 and a control assembly 50 disposed in the housing 10. The transmission assembly 40 cooperates with the first clamping arm 21 and the second clamping arm 31 respectively, and the restoring force of the first clamping arm reset member 22 and the second clamping arm reset member 32 can be provided to the first clamping arm 21 and the second clamping arm 31 to eject the first clamping arm 21 and the second clamping arm 31 outward relative to the rear housing 12 (housing 10). The control assembly 50 selectively cooperates with the transmission assembly 40 to prevent the transmission assembly 40 from driving the first clamping assembly 20 to eject outward relative to the rear housing 12 (housing 10) or release the blocking of the transmission assembly 40.

[0043] The transmission assembly 40 includes a ratchet 41, a first lead screw 42, a second lead screw 43, a first guide wheel 44 and a second guide wheel 45. The axial direction of the ratchet 41 is parallel to the clamping direction. The first guide wheel 44 and the first lead screw 42, the second guide wheel 45 and the second lead screw 43 are coaxially arranged on both sides of the ratchet 41. The first lead screw 42 and the second lead screw 43 are respectively matched with the first sliding portion 212 on the first clamping arm 21 and the second sliding portion 312 on the second clamping arm 31. The inner walls of the first sliding portion 212 matched with the first lead screw 42 and the second sliding portion 312 matched with the second lead screw 43 are provided with threads matching the lead screws. The first lead screw 42 and the first sliding portion 212, the second lead screw 43 and the second sliding portion 312 respectively form a lead screw nut pair. The spiral directions of the threads on the first lead screw 42 and the second lead screw 43 are opposite, so that the first clamping arm 21 and the second clamping arm 31 are controlled to move toward / backward synchronously. Theoretically, a lead screw may be provided on only one side, so that only the clamping arm on the side where the lead screw is located can move, while the clamping arm on the other side is fixed, thereby also achieving the effect of clamping / releasing the mobile terminal.

[0044] The transmission assembly 40 is installed on the transmission assembly mounting portion 121 set in the rear shell 12. Specifically, the first guide wheel 44 and the second guide wheel 45 are correspondingly inserted into the slots of the first guide wheel mounting seat 1211 and the second guide wheel mounting seat 1212 correspondingly set on the rear shell 12, so that the ratchet 41 is located in the gap between the first guide wheel mounting seat 1211 and the second guide wheel mounting seat 1212, and the transmission assembly 40 is installed on the rear shell 12 in this way.

[0045] The control assembly 50 includes an operating rod 51, an operating rod reset member 52, a shaft positioning member 53 and an operating rod positioning member 54. The operating rod 51 includes a shaft 511, a pressing end 512 and a locking end 513. The axis of the shaft 511 is parallel to the clamping direction, and the pressing end 512 and the locking end 513 are respectively located on both sides of the axis of the shaft 511. The shaft positioning member 53 is used to install the shaft 511 of the operating rod 51 on the rear housing 12, and the operating rod positioning member 54 is used to set the locking end 513 of the operating rod 51 and the operating rod reset member 52 on the rear housing 12. The operating rod reset member 52 is preferably a compression spring. In other embodiments, the operating rod reset member 52 may also be other elastic members, such as elastic pads.

[0046] In the illustrated embodiment, the operating rod reset member 52 is arranged between the locking end 513 and the rear shell 12; in other embodiments, the operating rod reset member 52 can also be placed between the front shell 11 and the pressing end 512. As long as the force applied by the operating rod reset member 52 to the operating rod 51 is to move the pawl at the end of the locking end 513 toward the ratchet teeth on the ratchet 41, the pawl and the ratchet teeth on the ratchet 41 can be locked to achieve the rotation of the locking ratchet 41.

[0047] The control assembly 50 is installed on the control assembly installation part 122 provided in the rear shell 12. Specifically, the rotating shaft 511 is installed on the rotating shaft installation seat 1221 on the rear shell 12 through the rotating shaft positioning member 53. The pressing end 512 corresponds to the unlocking button installation hole 1222 provided on the rear shell 12. One end of the operating rod reset member 52 is sleeved on the reset member positioning column 514 on one side of the locking end 513, and the other end is placed in the operating rod reset member installation seat 1223. In this way, the pressing end 512 and the locking end 513 form a lever (seesaw) with the rotating shaft 511 as the fulcrum. The operating rod reset member 52 provides the locking end 513 with a force to lift forward, so that the ratchet pawl at the end of the locking end 513 can cooperate with the ratchet 41, thereby locking the transmission assembly 40. The unlock button mounting hole 1222 is used to mount an unlock button, which is fixedly connected to the pressing end 512 of the operating rod 51. When the pressing end 512 is pressed, the operating rod 51 rotates around the rotating shaft 511, so that the locking end 513 disengages from the ratchet teeth on the ratchet wheel 41 to achieve unlocking.

[0048] When in use, the pressing end 512 of the operating rod 51 is pressed by the unlocking button at the unlocking button mounting hole 1222 on the rear housing 12, and the operating rod 51 rotates so that the pawl of the locking end 513 disengages from the ratchet 41, and the operating rod reset member 52 is squeezed. After the ratchet 41 is unlocked, the originally compressed first clamping arm reset member 22 and the second clamping arm reset member 32 generate a force to drive the first clamping arm 21 and the second clamping arm 31 to move outwards respectively. In this process, the first clamping arm 21 and the second clamping arm 31 drive the transmission assembly 40 to rotate through the first screw 42 and the second screw 43.

[0049] When the first clamping arm 21 and the second clamping arm 31 move to the maximum open position, or the locking end 513 engages with the ratchet 41 again, the first screw 42, the second screw 43 and the ratchet 41 stop rotating, and the user can put the mobile terminal between the first clamping arm 21 and the second clamping arm 31. Then push the first clamping arm 21 and the second clamping arm 31 closer to each other along the clamping direction until the first clamping arm 21 and the second clamping arm 31 respectively abut against the side wall of the mobile terminal. In this process, the first clamping arm 21 and the second clamping arm 31 will drive the first screw 42, the second screw 43 and the ratchet 41 to rotate in the opposite direction. Since the locking end 513 will be lifted when the ratchet 41 rotates in the opposite direction, it will not be locked by it, that is, the ratchet 41 can rotate freely in the opposite direction.

[0050] In summary, the present invention provides a mobile terminal clamping bracket, which locks and unlocks the clamping arm by arranging a transmission assembly and a control assembly in a shell, and the ratchet in the transmission assembly selectively cooperates with the pawl at the locking end of the operating rod in the control assembly to achieve locking and unlocking; the transmission assembly forms a screw-nut pair transmission with the first clamping arm and / or the second clamping arm through a screw rod, and the screw-nut pair transmission is smooth and reliable, avoiding the "tooth jumping" problem of the gear rack, and can provide more stable and reliable clamping; in the control assembly, the operating rod adopts a lever structure, which cooperates with the operating rod reset member, and the pressing end of the operating rod is controlled by the unlocking button, so that the unlocking operation is more convenient.

[0051] The concepts described herein may be implemented in other forms without departing from their spirit and characteristics. The specific embodiments disclosed should be considered illustrative rather than restrictive. Therefore, the scope of the present invention is determined by the appended claims rather than by the preceding description. Any changes within the literal meaning and equivalent scope of the claims should fall within the scope of these claims.

Claims

1. A mobile terminal clamping bracket for clamping a mobile terminal, comprising a housing, a first clamping assembly and a second clamping assembly, wherein the first clamping assembly and the second clamping assembly are respectively located at opposite ends of the housing and are used to clamp the mobile terminal together, characterized in that: A transmission assembly is further provided in the housing, and the transmission assembly cooperates with the first clamping assembly and / or the second clamping assembly through a screw nut pair to guide the first clamping assembly and the second clamping assembly to move relative to each other in a clamping direction; The transmission assembly includes a first lead screw with an axis parallel to the clamping direction, and the first clamping assembly includes a first clamping arm and a first clamping arm reset member; a first clamping arm slide groove is provided on the housing, and the first clamping arm reset member is arranged in the first clamping arm slide groove and connected to the first clamping arm; the first clamping arm reset member provides the first clamping arm with a force to open relative to the second clamping assembly in the clamping direction, and the first clamping arm is provided with a first sliding portion to cooperate with the first lead screw thread; The mobile terminal clamping bracket further comprises a control assembly arranged in the housing, a ratchet wheel is coaxially arranged in the transmission assembly with the first lead screw, and a pawl selectively matched with the ratchet wheel is arranged in the control assembly; The control assembly includes an operating rod and an operating rod reset member, the operating rod includes a rotating shaft, a pressing end and a locking end, the axis of the rotating shaft is parallel to the clamping direction, the pressing end and the locking end are respectively located on two opposite sides of the rotating shaft, the pawl is arranged at the end of the locking end, and the operating rod reset member provides a force to make the pawl move toward the ratchet teeth of the ratchet wheel.

2. The mobile terminal holding bracket according to claim 1, characterized in that: The transmission assembly includes a second screw coaxial with the first screw, and the second clamping assembly includes a second clamping arm and a second clamping arm reset member, the second clamping arm reset member provides a force for the second clamping arm to open relative to the first clamping arm in the clamping direction, and the second clamping arm is provided with a second sliding portion to cooperate with the second screw thread.

3. The mobile terminal holding bracket according to claim 2, characterized in that: The thread directions of the first lead screw and the second lead screw are opposite.

4. The mobile terminal holding bracket according to claim 3, characterized in that: The operating rod reset member is arranged between the locking end and the rear shell of the housing, and the rear shell is provided with an unlocking button mounting hole corresponding to the pressing end, and an unlocking button fixedly connected to the locking end is installed in the unlocking button mounting hole.

5. The mobile terminal holding bracket according to claim 4, characterized in that: The operating rod reset member is a compression spring, one end of which is sleeved on a reset member positioning column formed on one side of the locking end, and the other end is placed in an operating rod reset member mounting seat formed on the rear shell.

6. The mobile terminal holding bracket according to claim 4, characterized in that: The control assembly further includes a shaft positioning member and an operating rod positioning member, wherein the shaft positioning member cooperates with the shaft mounting seat on the rear shell to mount the shaft to the housing; and the operating rod positioning member mounts the locking end and the operating rod reset member to the housing.

7. The mobile terminal holding bracket according to claim 2, characterized in that: The first clamping arm reset member and the second clamping arm reset member are springs; Alternatively, the first clamping arm reset member includes two magnets with opposite polarities, which are fixed on the first clamping arm and at corresponding positions in the shell, and the second clamping arm reset member includes two magnets with opposite polarities, which are fixed on the second clamping arm and at corresponding positions in the shell.

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