Mobile phone support supporting base

Abstract

The utility model discloses a supporting base of a mobile phone support, an angle adjusting assembly is arranged on a supporting arm and is used for adjusting the rotating angle of the supporting arm, so that a driver does not need to stretch a hand to a mounting seat on the back surface of a central control screen to hold an adjusting knob, and only needs to press the angle adjusting assembly arranged on the supporting arm to adjust the rotating angle of the supporting arm. The rotating angle of the supporting arm is adjusted through the angle adjusting assembly arranged on the supporting arm, so that the placing position of the mobile phone is adjusted, the mobile phone can be placed in front of a driver at the optimal angle, the adjusting difficulty of the supporting arm is lowered, and the user experience is improved. Therefore, a driver does not need to lean forward to extend arms and wind the arms to an adjusting knob on the back of the central control screen, and the supporting arms are convenient and fast to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone accessories, and more specifically, to a mobile phone bracket support base. Background Art

[0002] A car phone holder is a device installed in a car. The support base of the car phone holder is usually installed on the car's central control screen. The car phone holder firmly fixes the phone in a position that is easy for the driver or passenger to reach by physical fixation or adsorption, so that the phone can be used conveniently during driving. The driver does not need to be distracted by looking for the phone during driving, and can easily answer calls, check navigation information or play music, thereby improving driving safety and convenience. However, in actual use, traditional support bases often have the following defects:

[0003] 1. Due to various vibrations and bumps generated during the driving of the car, the connection between the traditional support base and the car's central control screen is prone to loosening, causing the mobile phone holder to tilt. In severe cases, it may even topple over or the mobile phone may fall, causing a lot of inconvenience to the driver and may even cause safety hazards.

[0004] 2. Most of the existing mobile phone holder support bases do not have the function of adjustable angle, resulting in the mobile phone cannot be placed on the mobile phone holder at the best angle and position, thus affecting the user experience. Although the support arms of a few existing mobile phone holder support bases have the function of adjustable angle, they are usually arranged by setting an adjustment knob on the mounting base of the support base. When the driver needs to adjust the placement of the mobile phone, he needs to reach out to the back of the mounting base to hold the adjustment knob and drive the support arm to rotate by turning the adjustment knob. This design makes it difficult and inconvenient for the driver to adjust the rotation angle of the support arm.

[0005] 3. Since the mobile phone holder support base is fixed on the central control screen, it is often in close contact with the central control screen. During long-term use, due to the vibration of the vehicle during driving, the existing support base may cause scratches on the surface of the central control screen. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a mobile phone holder support base to solve the problem that the support arm of the mobile phone holder support base is difficult to adjust.

[0007] The technical solution of the utility model is as follows: A mobile phone bracket support base, comprising:

[0008] A support arm, wherein an angle adjustment component is provided on the support arm, and the angle adjustment component is used to adjust the rotation angle of the support arm;

[0009] A fixing clip, the fixing clip comprising a base, and a first clamping portion and a second clamping portion formed by two sides of the base being bent twice, respectively, and the first clamping portion and the second clamping portion are arranged at 90 degrees;

[0010] A fixing assembly, wherein the fixing sleeve is arranged on the fixing assembly, and the fixing assembly is used to press the central control screen onto the first clamping part and the second clamping part.

[0011] Furthermore, the angle adjustment assembly includes a clamping piece, a locking piece and an elastic piece, the clamping piece and the locking piece are both movably installed in the support arm, the clamping piece and the fixing clip are fixedly connected, one end of the elastic piece abuts against the locking piece, and the other end of the elastic piece abuts against the inner wall of the support arm, and the locking piece can be switched between a locking position and a release position relative to the clamping piece. When in the locking position, the locking piece is inserted into the clamping piece to limit the support arm from rotating relative to the fixing clip. When in the release position, the elastic piece is compressed, and the locking piece and the clamping piece are separated so that the support arm can rotate relative to the fixing clip.

[0012] Furthermore, one end of the support arm is provided with a universal ball head for connecting to the head of the vehicle-mounted mobile phone holder, and the other end of the support arm is provided with a first mounting hole, and the clamping fixture is movably installed in the first mounting hole.

[0013] Furthermore, the fixing assembly includes a telescopic part and an adjusting part, the fixing sleeve is arranged on the telescopic part, the telescopic part and the adjusting part are threadedly engaged with each other, and when the adjusting part rotates, the engagement length of the telescopic part and the adjusting part is changed so that the telescopic part presses the central control screen onto the first clamping part and the second clamping part.

[0014] Furthermore, a second mounting hole is provided in the clamping member, and a portion of the adjusting member passes through the second mounting hole to cooperate with the telescopic member.

[0015] Furthermore, the adjusting member includes a main body and a column arranged in the main body, the interior of the main body is hollow to form a hollow cavity for accommodating the column, the surface of the column is provided with an external thread, the telescopic member includes an abutment portion and an extension portion formed by extending outward from the abutment portion, the extension portion is provided with a threaded hole, and the column and the threaded hole are matched and connected.

[0016] Furthermore, a first anti-rotation plane and a second anti-rotation plane are provided on the surface of the extension portion, the first anti-rotation plane and the second anti-rotation plane are arranged opposite to each other, the fixing clip is provided with a third mounting hole that penetrates the thickness of the fixing clip, and the first anti-rotation plane and the second anti-rotation plane are respectively abutted against the inner wall of the third mounting hole.

[0017] Furthermore, the locking member is provided with a waist-shaped hole penetrating through the thickness of the locking member, and the support arm is provided with a fixing column for matching with the waist-shaped hole.

[0018] Furthermore, a locking protrusion is provided at one end of the locking member, a limiting column is provided at the other end of the locking member, a plurality of serrated protrusions distributed in a ring shape are provided on the outer wall of the locking member, a slot for cooperating with the locking protrusion is formed between two adjacent serrated protrusions, one end of the elastic member is sleeved on the limiting column, and the other end of the elastic member abuts against the inner wall of the support arm.

[0019] Furthermore, a first limiting protrusion and a second limiting protrusion are provided in the support arm, and the first limiting protrusion and the second limiting protrusion are arranged relative to each other to define a limiting space, and one end of the elastic member away from the locking member is located in the limiting space.

[0020] The utility model according to the above scheme has the following beneficial effects:

[0021] (1) The utility model provides a mobile phone holder support base, on which an angle adjustment component is provided on the support arm, and the angle adjustment component is used to adjust the rotation angle of the support arm. With this design, the driver does not need to extend his hand to the mounting seat on the back of the central control screen to hold the adjustment knob, but only needs to press the angle adjustment component provided on the support arm, and then swing the support arm to a suitable position and then release the angle adjustment component. The rotation angle of the support arm is adjusted by the angle adjustment component provided on the support arm, thereby adjusting the placement position of the mobile phone, so that the mobile phone can be placed in front of the driver at an optimal angle, reducing the difficulty of adjusting the support arm, so that the driver does not need to lean forward to stretch his arm and wrap it around the adjustment knob on the back of the central control screen, making the adjustment of the support arm convenient and quick. Secondly, it also includes a support arm and a fixing clamp, the fixing clamp includes a base and a first clamping portion and a second clamping portion which are formed by secondary bending on both sides of the base, and the first clamping portion and the second clamping portion are arranged at 90°. This design allows the fixing clamp to be clamped at the corner of the central control screen, and the first clamping portion and the second clamping portion are clamped on the top surface and the side surface of the central control screen respectively. This 90° clamping method not only effectively enhances the installation firmness of the mobile phone holder support base, significantly reduces the risk of it slipping during use, and ensures the safety of users when using mobile phones, but also enables the fixing clamp to be compatible with central control screens of different sizes and shapes, adapt to different car models and interior designs, and increase the versatility of the mobile phone holder support base.

[0022] (2) The utility model provides a mobile phone holder support base, in which a fixing clip sleeve is arranged on a fixing component, and the central control screen is pressed against the first clamping part and the second clamping part by changing the elongation of the fixing component. That is, the pressure between the fixing clip and the central control screen can be changed by adjusting the elongation of the fixing component, thereby effectively preventing the risk of the mobile phone holder support base loosening or slipping due to vibration or bumping during driving of the car, and significantly enhancing the stability of the mobile phone holder support base. Secondly, such a design enables the mobile phone holder support base to flexibly adapt to central control screens of different thicknesses. Whether it is a thicker central control screen or a thinner central control screen, the fixing component can be adjusted to ensure that the fixing clip can fit tightly and press the central control screen, thereby improving the scope of application and practicality of the holder.

[0023] (3) The utility model provides a mobile phone holder support base, which is provided with an angle adjustment component, and the angle adjustment component includes a clamping piece, a locking piece and an elastic piece. The clamping piece and the locking piece are both movably installed in the support arm, and the clamping piece is fixedly connected to the fixing clamp. One end of the elastic piece abuts against the locking piece, and the other end of the elastic piece abuts against the inner wall of the support arm. The locking piece can be switched between a locking position and a release position relative to the clamping piece. When in the locked position, the locking piece is inserted into the clamping piece to limit the support arm from rotating relative to the fixing clamp. When in the release position, the elastic piece is compressed, and the locking piece and the clamping piece are separated so that the support arm can rotate relative to the fixing clamp. With this design, the angle of the support arm relative to the fixing clamp can be easily adjusted by switching the locking member between the locking position and the release position, thereby achieving adjustment of the installation position of the mobile phone to a suitable viewing angle, thereby improving convenience and comfort of use. Secondly, when adjusting the support arm, there is no friction between the clamping member and the locking member, thereby reducing the wear of the clamping member and the locking member. After the support arm is adjusted to a predetermined angle, the restoring force of the elastic member can be used to engage the locking member and the clamping member, thereby preventing the support arm from rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a front view of a mobile phone stand support base in an embodiment of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure decomposition of a mobile phone stand support base in an embodiment of the utility model;

[0027] Figure 3 This is one of the internal structure schematic diagrams of a mobile phone stand support base in an embodiment of the utility model;

[0028] Figure 4 This is a second schematic diagram of the internal structure of a mobile phone holder support base in an embodiment of the utility model;

[0029] Figure 5 It is a schematic structural diagram of the telescopic member in the embodiment of the utility model.

[0030] In the figure, 1, support arm; 11, first mounting hole; 12, first limiting protrusion; 13, second limiting protrusion; 14, fixing column; 2, fixing clip; 21, base; 22, first clamping part; 23, second clamping part; 24, third mounting hole; 3, fixing assembly; 31, telescopic member; 311, abutment part; 312, extension part; 3121, first anti-rotation plane; 3122, second anti-rotation plane; 32, adjusting member; 321, main body; 322, column; 4, angle adjustment assembly; 41, clamping member; 411, second mounting hole; 412, serrated protrusion; 42, locking member; 421, waist-shaped hole; 422, clamping protrusion; 423, limiting column; 424, adjustment key; 43, elastic member; 5, universal ball head; 6, cover plate. DETAILED DESCRIPTION

[0031] The following detailed description and drawings of the embodiments of the present invention are used to illustrate the principle of the present invention, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the embodiments described.

[0032] In order to better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0033] See also Figure 1 to Figure 5 As shown, a mobile phone holder support base provided by an embodiment of the utility model includes a support arm 1, a fixing clamp 2, and a fixing component 3. An angle adjustment component 4 is provided on the support arm 1, and the angle adjustment component 4 is used to adjust the rotation angle of the support arm 1.

[0034] Specifically, the fixing clip 2 includes a base 21 and a first clamping portion 22 and a second clamping portion 23 formed by secondary bending on both sides of the base 21, and the first clamping portion 22 and the second clamping portion 23 are set at 90°. This design allows the fixing clip 2 to be clamped at the corner of the central control screen, and the first clamping portion 22 and the second clamping portion 23 are clamped on the top surface and the side surface of the central control screen respectively. This 90° clamping method not only effectively enhances the installation firmness of the mobile phone holder support base, significantly reduces the risk of it slipping during use, and ensures the safety of users when using mobile phones, but also enables the fixing clip 2 to be compatible with central control screens of different sizes and shapes, adapt to different car models and interior designs, and increase the versatility of the mobile phone holder support base.

[0035] In this embodiment, the fixing clamp 2 is sleeved on the fixing component 3, and the central control screen is pressed against the first clamping part 22 and the second clamping part 23 by changing the elongation of the fixing component 3, that is, the pressure between the fixing clamp 2 and the central control screen can be changed by adjusting the elongation of the fixing component 3, which effectively prevents the risk of the mobile phone holder supporting base loosening or slipping due to vibration or bumps during the driving of the car, and significantly enhances the stability of the mobile phone holder supporting base. Secondly, this design enables the mobile phone holder supporting base to flexibly adapt to central control screens of different thicknesses. Whether it is a thicker central control screen or a thinner central control screen, the fixing component 3 can be adjusted to ensure that the fixing clamp 2 can fit tightly and press the central control screen, thereby improving the applicability and practicality of the holder.

[0036] Specifically, the angle adjustment assembly 4 includes a clamping member 41, a locking member 42 and an elastic member 43. The clamping member 41 and the locking member 42 are both movably installed in the support arm 1. The clamping member 41 is fixedly connected to the fixing clamp 2. One end of the elastic member 43 abuts against the locking member 42, and the other end of the elastic member 43 abuts against the inner wall of the support arm 1. The locking member 42 can switch between a locking position and a release position relative to the clamping member 41. When in the locked position, the locking member 42 is inserted into the clamping member 41 to limit the rotation of the support arm 1 relative to the fixing clamp 2. When in the release position, the elastic member 43 is compressed, and the locking member 42 and the clamping member 41 are separated so that the support arm 1 can rotate relative to the fixing clamp 2. With this design, the angle of the support arm 1 relative to the fixing clamp 2 can be easily adjusted by switching the locking member 42 between the locking position and the releasing position, thereby achieving adjustment of the installation position of the mobile phone to a suitable viewing angle, thereby improving the convenience and comfort of use. Secondly, when adjusting the support arm 1, there is no friction between the clamping member 41 and the locking member 42, thereby reducing the wear of the clamping member 41 and the locking member 42. After the support arm 1 is adjusted to a predetermined angle, the restoring force of the elastic member 43 can be used to make the locking member 42 and the clamping member 41 engage with each other, thereby preventing the support arm 1 from rotating.

[0037] In this embodiment, the elastic member 43 is a component for storing and releasing energy, which can be deformed when subjected to an external force and return to its original shape after the external force disappears. In this embodiment, the elastic member 43 includes but is not limited to a spring, and can also be a rubber elastic body, an elastic sheet, etc.

[0038] See also Figure 2 As shown, one end of the support arm 1 is provided with a universal ball head 5 for connecting to the head of the vehicle-mounted mobile phone holder, and the other end of the support arm 1 is provided with a first mounting hole 11, and the clamping fixture 41 is movably installed in the first mounting hole 11.

[0039] In this embodiment, the fixing assembly 3 includes a telescopic member 31 and an adjusting member 32. The fixing clamp 2 is sleeved on the telescopic member 31. The telescopic member 31 and the adjusting member 32 are threadedly engaged with each other. When the adjusting member 32 rotates, the engagement length of the telescopic member 31 and the adjusting member 32 is changed so that the telescopic member 31 presses the central control screen onto the first clamping portion 22 and the second clamping portion 23.

[0040] For further explanation, the embodiment of the present utility model also provides an adjustment process of the fixing component 3, which is as follows:

[0041] Since the first clamping portion 22 and the second clamping portion 23 are relatively fixed, the first clamping portion 22, the second clamping portion 23 and the telescopic member 31 together form a clamping space to tightly clamp the central control screen therein. When the adjusting member 32 rotates clockwise, the threads of the adjusting member 32 and the threads of the telescopic member 31 engage with each other during the rotation process, prompting the telescopic member 31 to move in a direction close to the adjusting member 32 to further screw into the adjusting member 32, thereby increasing the length of the telescopic member 31 screwed into the adjusting member 32, thereby increasing the clamping space, so as to facilitate the central control screen to be placed in the clamping space;

[0042] After the central control screen is placed in the clamping space, the adjusting piece 32 is rotated counterclockwise, and the threads of the adjusting piece 32 and the threads of the telescopic piece 31 engage with each other during the counterclockwise rotation. Due to the interaction of the threads, the telescopic piece 31 moves away from the adjusting piece 32, that is, it is partially screwed out of the adjusting piece 32. When the telescopic piece 31 moves outward to a certain length, the telescopic piece 31 abuts against the back of the touch screen and presses the touch screen against the first clamping portion 22 and the second clamping portion 23.

[0043] In this embodiment, a second mounting hole 411 is provided in the clamping member 41, and a portion of the adjusting member 32 passes through the second mounting hole 411 to cooperate with the telescopic member 31, wherein the adjusting member 32 can rotate in the second mounting hole 411 to achieve cooperation with the telescopic member 31. This design enables the adjusting member 32 and the clamping member 41 to be nested and cooperated, so that the mobile phone holder support base provided by the embodiment of the utility model has the characteristics of compact structure.

[0044] See also Figure 2As shown, the adjusting member 32 comprises a main body 321 and a cylinder 322 arranged in the main body 321, the main body 321 is hollow inside to form a hollow cavity for accommodating the cylinder 322, the surface of the cylinder 322 is provided with an external thread, the telescopic member 31 comprises an abutment portion 311 and an extension portion 312 formed by extending and protruding outward from the abutment portion 311, a threaded hole is provided in the extension portion 312, and the cylinder 322 and the threaded hole are matched and connected. This design makes the fixing assembly 3 compact in structure and reduces unnecessary space occupation. At the same time, the external thread on the surface of the cylinder 322 is matched and connected with the threaded hole in the extension portion 312 of the telescopic member 31, and by rotating the main body 321 of the adjusting member 32, the cylinder 322 located in the main body 321 is driven to rotate, and the screw-in length or screw-out length of the cylinder 322 in the threaded hole can be controlled, which not only ensures the accuracy of the adjustment, but also provides a stable connection, so that during the adjustment process, it is not easy to loosen or misalign between the adjusting member 32 and the telescopic member 31.

[0045] Preferably, the surface of the extension portion 312 is provided with a first anti-rotation plane 3121 and a second anti-rotation plane 3122, the first anti-rotation plane 3121 and the second anti-rotation plane 3122 are arranged opposite to each other, the fixing clip 2 is provided with a third mounting hole 24 penetrating the thickness of the fixing clip 2, and the first anti-rotation plane 3121 and the second anti-rotation plane 3122 are respectively in contact with the inner wall of the third mounting hole 24. This design can prevent the fixing clip 2 from rotating relative to the telescopic member 31, thereby ensuring that the fixing clip 2 can always be clamped at the corner of the central control screen.

[0046] In this embodiment, the locking member 42 is provided with a waist-shaped hole 421 that penetrates the thickness of the locking member 42, and the support arm 1 is provided with a fixing column 14 that is used to cooperate with the waist-shaped hole 421. This design significantly enhances the connection stability between the locking member 42 and the support arm 1, allowing the fixing column 14 to move linearly in the waist-shaped hole 421, while still ensuring that the locking member 42 and the support arm 1 have a stable connection state, and by means of the waist-shaped hole 421 and the fixing column 14 cooperating, it can play a certain guiding role in the movement of the locking member 42.

[0047] Preferably, a locking protrusion 422 is provided at one end of the locking member 42, a limiting column 423 is provided at the other end of the locking member 42, a plurality of sawtooth protrusions 412 are provided on the outer wall of the clamping member 41 and are distributed in an annular manner, a clamping groove for matching with the locking protrusion 422 is formed between two adjacent sawtooth protrusions 412, one end of the elastic member 43 is sleeved on the limiting column 423, and the other end of the elastic member 43 abuts against the inner wall of the support arm 1. With this design, when the locking member 42 is locked on the clamping member 41, the elastic member 43 generates a certain pre-tightening force by abutting against the inner wall of the support arm 1, thereby preventing the locking member 42 from accidentally falling off, thereby improving the use safety of the mobile phone holder support base and avoiding the risk of the mobile phone installed thereon tipping over.

[0048] Preferably, a first limiting protrusion 12 and a second limiting protrusion 13 are provided in the support arm 1, and the first limiting protrusion 12 and the second limiting protrusion 13 are arranged opposite to each other to define a limiting space, and one end of the elastic member 43 away from the locking member 42 is located in the limiting space. This design effectively prevents the end of the elastic member 43 abutting against the inner wall of the support arm 1 from moving or dislocating when subjected to force or vibration.

[0049] Preferably, the mobile phone stand support base provided by the embodiment of the utility model further includes a cover plate 6, which is detachably connected to the support arm 1, and an adjustment key 424 is provided on the locking member 42, and a through hole for the adjustment key 424 to pass through is correspondingly provided on the cover plate 6. This design facilitates the adjustment of the locking member 42 between the locking position and the release position by adjusting the adjustment key 424, thereby completing the adjustment of the installation angle of the support arm 1.

[0050] In this embodiment, in order to prevent the support base from scratching the surface of the central control screen, a silicone pad is provided on the abutting portion 311, the first clamping portion 22 and the second clamping portion 23. The silicone pad has good softness and elasticity, and can effectively buffer the contact pressure between the support base and the central control screen, avoid hard direct contact, reduce the risk of the support base scratching the surface of the central control screen, and protect the integrity of the surface of the central control screen. Secondly, the surface of the silicone pad has a certain degree of roughness. This design also increases the friction between the support base and the central control screen, so that the support base can be stably fixed on the central control screen and is not easy to slide or shift.

[0051] The indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when used, or the orientation or position relationship commonly understood by technical personnel in this field, or the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0052] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0053] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A mobile phone stand support base, comprising: Support arm (1); A fixing clamp (2), the fixing clamp (2) comprising a base (21) and a first clamping portion (22) and a second clamping portion (23) formed by two sides of the base (21) being bent twice, and the first clamping portion (22) and the second clamping portion (23) are arranged at 90 degrees; A fixing assembly (3), wherein the fixing clip (2) is sleeved on the fixing assembly (3), and the fixing assembly (3) is used to press the central control screen onto the first clamping portion (22) and the second clamping portion (23); characterized in that: The support arm (1) is provided with an angle adjustment component (4), and the angle adjustment component (4) is used to adjust the rotation angle of the support arm (1).

2. A mobile phone stand support base as claimed in claim 1, characterized in that: The angle adjustment assembly (4) comprises a clamping member (41), a locking member (42) and an elastic member (43); the clamping member (41) and the locking member (42) are both movably mounted in the support arm (1); the clamping member (41) and the fixing clamp (2) are fixedly connected; one end of the elastic member (43) abuts against the locking member (42); the other end of the elastic member (43) abuts against the inner wall of the support arm (1); the locking member (42) can switch between a locking position and a release position relative to the clamping member (41); when in the locking position, the locking member (42) is inserted into the clamping member (41) to limit the support arm (1) from rotating relative to the fixing clamp (2); when in the release position, the elastic member (43) is compressed, and the locking member (42) and the clamping member (41) are separated so that the support arm (1) can rotate relative to the fixing clamp (2).

3. A mobile phone stand support base as claimed in claim 2, characterized in that: One end of the support arm (1) is provided with a universal ball head (5) for connecting to the head of the vehicle-mounted mobile phone holder, and the other end of the support arm (1) is provided with a first mounting hole (11), and the clamping piece (41) is movably mounted in the first mounting hole (11).

4. A mobile phone stand support base as described in any one of claims 2 to 3, characterized in that: The fixing assembly (3) comprises a telescopic member (31) and an adjusting member (32), the fixing clamp (2) is sleeved on the telescopic member (31), the telescopic member (31) and the adjusting member (32) are threadedly engaged with each other, and when the adjusting member (32) rotates, the engagement length between the telescopic member (31) and the adjusting member (32) is changed so that the telescopic member (31) presses the central control screen onto the first clamping portion (22) and the second clamping portion (23).

5. A mobile phone stand support base as claimed in claim 4, characterized in that: A second mounting hole (411) is provided in the clamping member (41), and a portion of the adjusting member (32) passes through the second mounting hole (411) to cooperate with the telescopic member (31).

6. A mobile phone stand support base as claimed in claim 4, characterized in that: The adjusting member (32) comprises a main body (321) and a column (322) arranged in the main body (321); the main body (321) is hollow inside to form a hollow cavity for accommodating the column (322); the surface of the column (322) is provided with an external thread; the telescopic member (31) comprises an abutting portion (311) and an extending portion (312) formed by extending and protruding outward from the abutting portion (311); a threaded hole is provided in the extending portion (312); the column (322) and the threaded hole are matched and connected.

7. A mobile phone stand support base as claimed in claim 6, characterized in that: The surface of the extension portion (312) is provided with a first anti-rotation plane (3121) and a second anti-rotation plane (3122), the first anti-rotation plane (3121) and the second anti-rotation plane (3122) are arranged opposite to each other, the fixing clamp (2) is provided with a third mounting hole (24) penetrating the thickness of the fixing clamp (2), and the first anti-rotation plane (3121) and the second anti-rotation plane (3122) are respectively abutted against the inner wall of the third mounting hole (24).

8. A mobile phone stand support base as claimed in claim 2, characterized in that: The locking piece (42) is provided with a waist-shaped hole (421) penetrating the thickness of the locking piece (42), and the support arm (1) is provided with a fixing column (14) for matching with the waist-shaped hole (421).

9. A mobile phone stand support base as claimed in claim 8, characterized in that: A locking protrusion (422) is provided at one end of the locking member (42), and a limiting column (423) is provided at the other end of the locking member (42). A plurality of sawtooth protrusions (412) are provided on the outer wall of the locking member (41) and are distributed in an annular manner at intervals. A locking groove for matching with the locking protrusion (422) is formed between two adjacent sawtooth protrusions (412). One end of the elastic member (43) is sleeved on the limiting column (423), and the other end of the elastic member (43) is in contact with the inner wall of the support arm (1).

10. A mobile phone stand support base as claimed in claim 9, characterized in that: A first limiting protrusion (12) and a second limiting protrusion (13) are arranged in the support arm (1); the first limiting protrusion (12) and the second limiting protrusion (13) are arranged relative to each other to define a limiting space; an end of the elastic member (43) away from the locking member (42) is located in the limiting space.

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