Portable mobile phone support for live broadcast shooting and recording

Abstract

The invention discloses a portable mobile phone support for live broadcast shooting and recording. The invention aims to solve the problems that in the prior art, the total volume is very large after contraction, the weight is relatively heavy, the carrying is very inconvenient, and a user is unwilling to carry. According to the technical scheme, the device comprises a clamping device, a connecting base, a telescopic rod and a footstand, and is characterized in that the footstand horizontally extends outwards from the center to form a first forked body, a second forked body and a third forked body, the horizontal included angle between every two adjacent bodies is 120 degrees, corresponding thin steel strip winding mechanisms are arranged in the bodies, and thin steel strip telescopic openings are formed in the top faces of the bodies respectively. A first thin steel strip, a second thin steel strip and a third thin steel strip which extend out of the corresponding thin steel strip telescopic openings respectively form three telescopic rods in a vertical state, the sections of the thin steel strips in the straightening state are in an arc shape, and dampers for fixing the thin steel strips are arranged in main bodies respectively. And the outer ends of the thin steel strips are respectively and vertically arranged in the fixing cavities on the connecting seats, and are fastened by the fixing seats matched with the fixing cavities and the screws.

Description

Technical Field

[0001] This invention relates to photographic equipment, and in particular to a lightweight mobile phone stand for live streaming and recording. Background Technology

[0002] The current proliferation of live-streaming on social media platforms often relies on videos created using smartphones' recording functions. However, the habit of holding a phone while recording results in low-quality videos. While higher-quality videos are typically produced using phone stands, even at their smallest retractable state, they are generally bulky, heavy, and inconvenient to carry, contributing to the generally low quality of live-streaming videos.

[0003] A shooting stand disclosed in Chinese Patent Publication No. CN117989421A can be used as a mobile phone stand for live shooting and recording. The structure includes a clamp, a telescopic component, and a support portion. The clamp is used to hold an electronic terminal and is mounted on the telescopic component. The telescopic component is mounted on the support portion. The support portion has a receiving member with a receiving space, and the telescopic component is fitted onto the receiving member. When the receiving member is in a first position of the telescopic component, the telescopic component can extend or retract to allow the clamp to be received in or extend out of the receiving space. The drawback of this design is that even with all the telescopic rods on the telescopic component retracted into the receiving member and all the legs of the support portion folded up, the overall size and weight of the shooting stand are still quite large, making it inconvenient to carry and discouraging users from using it.

[0004] Chinese Patent Announcement No. CN205754494U discloses an inflatable boat shooting bracket, which can also be used as a mobile phone bracket for live shooting and recording. Its features include: a selfie stick, a middle rod, a left frame, and a right frame; the bottom of the middle rod, the bottom of the left frame, and the bottom of the right frame are respectively connected to the boat's side; the upper part of the middle rod is connected to the top of the left frame and the top of the right frame, forming a stable triangular bracket; the selfie stick is inserted into the middle rod, and the triangular bracket provides shooting support; the selfie stick is a four-section telescopic rod fixed by spring locks between the sections, with a telescopic "cross" shaped mobile phone clamp at the upper end; the left frame and the right frame are each four-section telescopic rods; when the telescopic rods are extended, the first three sections are fixed by spring locks, and the bottom section is fixed by an external locking mechanism. The drawback of this solution is that even after the telescopic sections on the selfie stick are retracted into the middle rod and the first three telescopic rods on the left and right frames are retracted into the rear rods, the overall size and weight of the shooting bracket are still quite large, making it very inconvenient to carry and causing users to be unwilling to carry it. Summary of the Invention

[0005] In order to overcome the problems of existing mobile phone holders used for live streaming shooting and recording, which are still quite large and heavy after being folded, making them inconvenient to carry and causing users to be unwilling to carry them, resulting in low quality of live streaming videos, the purpose of this invention is to provide an improved lightweight mobile phone holder for live streaming shooting and recording, which can overcome the defects of the prior art.

[0006] The technical solution adopted by this invention to solve its technical problem is: a lightweight mobile phone holder for live shooting and recording, including a clamp, a connecting base, a telescopic rod, and a foot base. The clamp is connected to the upper part of the connecting base, and the upper part of the telescopic rod is connected to the connecting base, while its lower part is connected to the foot base. The foot base extends horizontally outward from its center, comprising a first branch body, a second branch body, and a third branch body. The adjacent horizontal angles between the first branch body, the second branch body, and the third branch body are all 120 degrees. Each of the first branch body, the second branch body, and the third branch body has an independent first thin steel strip winding mechanism, a second thin steel strip winding mechanism, and a third thin steel strip winding mechanism. The top surfaces of the first branch body, the second branch body, and the third branch body are respectively provided with the first thin steel strip winding mechanism. The thin steel strip telescopic openings corresponding to the first, second, and third thin steel strip winding mechanisms form three vertical telescopic rods. The first, second, and third thin steel strips extending from the telescopic openings corresponding to the first, second, and third thin steel strip winding mechanisms, respectively, are arc-shaped cross-sections, thus exhibiting a straightening tendency. The first, second, and third forked bodies are respectively equipped with dampers to fix the extension positions of the first, second, and third thin steel strips. The outer ends of the first, second, and third thin steel strips are respectively vertically inserted into the fixing cavities on the bottom surface of the connecting seat, and the outer ends are secured by fixing seats and screws that cooperate with the fixing cavities.

[0007] The foot described in the above technical solution may include a mounting base plate and a first branch body, a second branch body, a third branch body, and several fastening screws fixed on the top surface of the mounting base plate. The first branch body, the second branch body, and the third branch body have the same shape and structure. The outer shell of the first branch body, the second branch body, or the third branch body is symmetrically connected from the front side and the rear side, which are divided by their vertical interface. The outer shell has a pointed corner at one end of the vertical interface, and the cross-sectional angle of the pointed corner is 120°. The first branch body, the second branch body, and the third branch body are all spliced ​​together by the pointed corners of the outer shell to form a three-pronged shape. The several fastening screws pass through the nail holes on the mounting base plate from the bottom surface and lock the first branch body, the second branch body, and the third branch body respectively.

[0008] In the above technical solution, the first, second, and third thin steel strips can all be made of 50-65# grade 1 steel strip. The width of the steel strip can be ≥25mm, and its thickness can be 0.1-0.2mm. Then, the straight cross-section of the steel strip is processed into an arc-shaped cross-section. The width of the arc-shaped cross-section can be 2-5mm, thus becoming the first, second, and third thin steel strips, all of which have an arc-shaped cross-section when straightened.

[0009] The first, second, and third thin steel strip winding mechanisms described above can all include a steel pulley, a corresponding thin steel strip, and a spring. The steel pulley has a cavity, and it is rotatably fitted onto a fixed horizontal shaft within the corresponding fork body via central holes on the spokes on both sides of the cavity. One end of the corresponding thin steel strip is fixed to and coiled around the outer surface of the steel pulley, while the other end extends out of the corresponding fork body from the thin steel strip extension opening on the top side of the fork body after passing through the damper. The spring is located within the cavity, with one end fixed to and coiled around the fixed horizontal shaft, and the other end fixed to the inner surface of the steel pulley. The corresponding thin steel strip refers to the corresponding first, second, or third thin steel strip; the corresponding fork body refers to the corresponding first, second, or third fork body. The fixed horizontal axis can be integrally formed and fixed together with the front or rear side of the housing.

[0010] The winding direction of the mainspring on the fixed horizontal shaft in the above technical solution can be opposite to the winding direction of the corresponding thin steel strip on the steel pulley, so that the steel pulley outputs the corresponding thin steel strip while driving the mainspring to wind on the fixed horizontal shaft.

[0011] In the above technical solution, when the first thin steel strip, the second thin steel strip, or the third thin steel strip is wound around the outer surface of the steel belt pulley, the first thin steel strip, the second thin steel strip, or the third thin steel strip may be compressed by the tension of the steel belt pulley, and elastically deformed from an arc-shaped cross-section in a straight state to a flat cross-section before being wound around the steel belt pulley.

[0012] The bottom surface of the connecting seat described in the above technical solution may be provided with a concave fixing cavity. The fixing cavity has three arc-shaped convex cavity walls. The outer ends of the first, second, and third thin steel strips are respectively vertically inserted into the fixing cavity of the connecting seat, and the concave arc surfaces of the outer ends of the first, second, and third thin steel strips respectively mate with the three arc-shaped convex cavity walls in the fixing cavity. Then, a fixing seat with three arc-shaped concave outer walls is fitted into the fixing cavity, and the three arc-shaped concave cavity walls respectively mate with the convex arc surfaces of the outer ends of the first, second, and third thin steel strips. Then, three screws pass through the nail holes of the connecting seat and then through the nail holes on the outer ends of the first, second, and third thin steel strips respectively, and are then locked onto the screw holes of the fixing seat, thereby realizing the fastening connection between the outer ends of the first, second, and third thin steel strips and the connecting seat.

[0013] The mounting base plate described in the above technical solution can be provided with three evenly distributed unfolding feet on its bottom surface. Each of the three unfolding feet has a foot pad on its bottom side with one end rotatably engaged with the bottom surface of the mounting base plate. The three unfolding feet can expand the contact area of ​​the mounting base plate to improve the stability of the lightweight mobile phone holder.

[0014] The damper described in the above technical solution can be composed of a fixed damping block fixed to one side of the thin steel strip telescopic opening within the first, second, and third bifurcated bodies, a sliding damping block slidably fitted within the first, second, and third bifurcated bodies on the other side of the thin steel strip telescopic opening, and a damping spring with one end abutting the sliding damping block and the other end abutting a spring seat within the first, second, or third bifurcated body. The contact surfaces on the fixed damping block that contact the concave arc surfaces of the first, second, and third thin steel strips are all convex arc surfaces, and the contact surfaces on the sliding damping block that contact the convex arc surfaces of the first, second, and third thin steel strips are all concave arc surfaces. This ensures that the first, second, and third thin steel strips are not flattened at the damper, thus guaranteeing the vertical support force of the first, second, and third thin steel strips.

[0015] The damping spring described in the above technical solution applies elastic pressure to the first, second, and third thin steel strips through the sliding damping block. This pressure can be controlled so that the extended positions of the first, second, and third thin steel strips can be fixed whether the holder is holding a lightweight shooting device or not. When the user presses or pulls the connecting seat, the first, second, and third thin steel strips can retract into or extend into the first, second, and third forked bodies, respectively. The springs on the first, second, and third thin steel strip winding mechanisms are designed so that when the user presses the connecting seat to retract the first, second, and third thin steel strips into the first, second, and third forked bodies respectively, the steel belt pulleys can rotate via the springs. This allows the first, second, and third thin steel strips to wind smoothly onto the pulleys and makes the retraction operation of the first, second, and third thin steel strips easy.

[0016] The clamp described in the above technical solution can be rotatably fitted on the upper part of the connecting seat, and the connecting seat is provided with a hand knob for locking or releasing the clamp.

[0017] The clamp described in the above technical solution can be composed of a fixed clamping block, a movable clamping block that is slidably fitted on the fixed clamping block, and a tension spring that is connected to the fixed clamping block at one end and to the movable clamping block at the other end. The tension spring can be disposed inside the fixed clamping block. The fixed clamping block and the movable clamping block form a clamping port for the mobile phone. The rear side of the fixed clamping block is provided with a connecting part that is rotatably connected to the upper part of the connecting seat.

[0018] The beneficial effects of this invention are as follows: Firstly, because the foot extends horizontally from the center outwards with a first branch body, a second branch body, and a third branch body, and the adjacent horizontal included angles between the first branch body, the second branch body, and the third branch body are all 120 degrees, and the first branch body, the second branch body, and the third branch body are respectively provided with independent first thin steel strip winding mechanisms, second thin steel strip winding mechanisms, and third thin steel strip winding mechanisms, and the top surfaces of the first branch body, the second branch body, and the third branch body are respectively provided with thin steel strip telescopic openings corresponding to the first thin steel strip winding mechanism, the second thin steel strip winding mechanism, and the third thin steel strip winding mechanism, thus making the first branch body... First, after the second and third branch bodies are simply combined, the three output thin steel strip telescopic rods can be distributed in an equilateral triangle pattern, thus achieving optimal vertical support by cooperating with the three very thin steel strip telescopic rods. Second, since the first, second, and third thin steel strips extending from the first, second, and third thin steel strip winding mechanisms respectively constitute the three vertical telescopic rods, and the straightened cross-sections of the first, second, and third thin steel strips are arc-shaped, thus having a straightening tendency, the three vertical telescopic rods can be supported by the first, second, and third thin steel strip winding mechanisms. The synchronous winding of the third thin steel strip mechanism completely retracts into the first, second, and third branch bodies on the base, minimizing the overall volume of the lightweight phone holder. Combined with its light weight, this makes it very convenient and easy for users to carry, effectively improving the recording quality of live video broadcasts. Thirdly, because the first, second, and third branch bodies each contain dampers to fix the protruding positions of the first, second, and third thin steel strips, their protruding positions can be individually fixed, ensuring the support performance of the lightweight phone holder. Fourthly, because the first thin steel strip... The outer ends of the first, second, and third thin steel strips are respectively vertically inserted into the fixing cavity on the bottom surface of the connecting seat, and the outer ends are fixed by the fixing seat and screws that cooperate with the fixing cavity. Therefore, the outer ends of the first, second, and third thin steel strips can maintain their original arc-shaped cross-section state when fixed, and will not be flattened, which can effectively ensure the vertical support force of the first, second, and third thin steel strips. Fifth, three very thin and light arc-shaped independent thin steel strips are vertically set to become three telescopic rods, so that the lightweight mobile phone holder can be minimized and made as light as possible. This is an ingenious and practical device invented by the applicant, which has never been done in this field before and has positive significance for promotion and application.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one embodiment of the present invention.

[0021] Figure 2 yes Figure 1 A schematic diagram showing the first, second, and third thin steel strips of the telescopic rod retracting into the first, second, and third branch bodies, respectively.

[0022] Figure 3 yes Figure 1 A top-down enlarged view of the foot after the first, second, and third thin steel strips have been cut.

[0023] Figure 4 yes Figure 3 A diagram showing the view from below.

[0024] Figure 5 yes Figure 1 An enlarged schematic diagram of the cross-section of the connector.

[0025] Figure 6 yes Figure 1 An enlarged schematic diagram of the first forked body of the foot.

[0026] Figure 7 yes Figure 6 A schematic diagram of the AA section.

[0027] Figure 8 yes Figure 1 A schematic diagram of the clamping port of the gripper opening.

[0028] In the diagram: 1. Clamp; 2. Connecting seat; 3. Telescopic rod; 4. Foot; 5. First fork body; 6. Second fork body; 7. Third fork body; 8. First thin steel strip winding mechanism; 9. Thin steel strip telescopic opening; 10. First thin steel strip; 11. Second thin steel strip; 12. Third thin steel strip; 13. Outer end; 14. Fixing cavity; 15. Fixing seat; 16. Screw; 17. Mounting base plate; 18. Fastening screw; 19. Vertical split interface; 20. Front side; 21. Rear side 22. Sharp corner; 23. Steel pulley; 25. Spring; 26. Wheel cavity; 27. Wheel spoke; 28. Center hole; 29. ​​Fixed horizontal shaft; 30. Damper; 31. Convex cavity wall; 33. Concave outer wall; 34. Deployed foot; 35. One end; 36. The other end; 37. Foot pad; 38. Fixed damping block; 39. Sliding damping block; 40. Spring seat; 41. Damping compression spring; 42. Hand knob; 43. Fixed clamping block; 44. Movable clamping block; 45. Connecting part. Detailed Implementation

[0029] Reference Figures 1 to 8This lightweight mobile phone holder for live streaming recording includes a clamp 1, a connecting base 2, a telescopic rod 3, and a foot 4. The clamp 1 is connected to the upper part of the connecting base 2. The upper part of the telescopic rod 3 is connected to the connecting base 2, and its lower part is connected to the foot 2. The foot 2 has a first branch body 5, a second branch body 6, and a third branch body 7 extending horizontally outward from its center. The adjacent horizontal angles between the first branch body 5, the second branch body 6, and the third branch body 7 are all 120 degrees. The first branch body 5, the second branch body 6, and the third branch body 7 are respectively provided with independent first thin steel strip winding mechanisms 8, second thin steel strip winding mechanisms, and third thin steel strip winding mechanisms. The top surfaces of the first branch body 5, the second branch body 6, and the third branch body 7 are respectively provided with the first thin steel strip winding mechanism 8, the second thin steel strip winding mechanism, and the third thin steel strip winding mechanism. The corresponding thin steel strip telescopic opening 9, the first thin steel strip 10, the second thin steel strip 11 and the third thin steel strip 12 extending from the corresponding thin steel strip telescopic opening 11 of the first thin steel strip winding mechanism 8, the second thin steel strip winding mechanism and the third thin steel strip winding mechanism respectively constitute three telescopic rods 3 in a vertical state. The cross section of the first thin steel strip 10, the second thin steel strip 11 and the third thin steel strip 12 in the straightened state is arc-shaped, so that it has a straightening tendency. The first bifurcation body 5, the second bifurcation body 6 and the third bifurcation body 7 are respectively provided with dampers 30 to fix the extension position of the first thin steel strip 10, the second thin steel strip 11 and the third thin steel strip 12. The outer ends 13 of the first thin steel strip 10, the second thin steel strip 11 and the third thin steel strip 12 are respectively vertically placed into the recessed fixing cavity 14 on the bottom surface of the connecting seat 2, and the outer ends 13 are fixed by the fixing seat 15 and the screw 16 that cooperate with the fixing cavity 14.

[0030] In addition, such as Figure 3 and Figure 4 As shown, the foot 4 includes a mounting base 17 and a first forked body 5, a second forked body 6, a third forked body 7, and several fastening screws 18 fixed on the top surface of the mounting base 17. The first forked body 5, the second forked body 6, and the third forked body 7 have the same shape and structure. The outer shells of the first forked body 5, the second forked body 6, or the third forked body 7 are symmetrically connected according to the front side 20 and the rear side 21 of their vertical dividing interface 19. The outer shell has a pointed corner 22 at one end of the vertical dividing interface 19, and the cross-sectional angle of the pointed corner is 120°. The first forked body 5, the second forked body 6, and the third forked body 7 are all spliced ​​together by the pointed corners 22 of their outer shells to form a three-pronged shape. The several fastening screws 18 pass through the nail holes on the mounting base 17 from the bottom surface of the mounting base 17 and lock the first forked body 5, the second forked body 6, and the third forked body 7 respectively.

[0031] The first thin steel strip 10, the second thin steel strip 11, and the third thin steel strip 12 are all made of 50-65# grade steel strip. The width of the steel strip is ≥25mm and the thickness is 0.1-0.2mm. The straight cross-section of the steel strip is then processed into an arc-shaped cross-section with a width of 2-5mm, thus becoming the first thin steel strip 10, the second thin steel strip 11, and the third thin steel strip 12, all of which have an arc-shaped cross-section when straightened.

[0032] like Figure 6 As shown, the first thin steel strip winding mechanism 8 includes a steel pulley 23, a first thin steel strip 10, and a spring 25. The steel pulley has a wheel cavity 26. The steel pulley 23 is rotatably fitted onto a fixed horizontal shaft 29 inside the first forked body 5 by the center holes 28 on the spoke plates 27 on both sides of the wheel cavity. One end of the first thin steel strip 10 is fixed to the outer wheel surface of the steel pulley 23 and coiled around the outer wheel surface of the steel pulley. The other end of the first thin steel strip 10 extends out of the first forked part 5 from the thin steel strip extension port 9 on the top surface of the first forked part 5 after passing through the damper 30. The spring 25 is located inside the wheel cavity 26. One end of the spring 25 is fixed to the fixed horizontal shaft 29 and coiled around the fixed horizontal shaft 29. The other end of the spring 25 is fixed to the inner wheel surface of the steel pulley 23. The fixed horizontal shaft 29 is integrally formed with the rear part 21 of the outer shell and is fixed together with it. The second and third thin steel strip winding mechanisms have the same structure as the first thin steel strip winding mechanism 8.

[0033] The winding direction of the mainspring 25 on the fixed horizontal shaft 29 is opposite to the winding direction of the first thin steel strip 10 on the steel pulley 23, so that the steel pulley 23 drives the mainspring 25 to wind on the fixed horizontal shaft 29 while outputting the first thin steel strip 10.

[0034] When the first thin steel strip 10 is coiled around the outer surface of the steel pulley 23, the first thin steel strip 10 is subjected to tension and compression by the steel pulley 23, and its arc-shaped cross-section in the straight state is elastically deformed into a flat cross-section before being coiled around the steel pulley 23.

[0035] like Figure 5As shown, the bottom surface of the connecting seat 2 is provided with a concave fixing cavity 14. The fixing cavity 14 has three arc-shaped convex cavity walls 31. The outer ends 13 of the first thin steel strip 10, the second thin steel strip 11, and the third thin steel strip 12 are respectively vertically placed into the fixing cavity 14 on the bottom surface of the connecting seat 2, and the concave arc surfaces of the outer ends 13 of the first thin steel strip 10, the second thin steel strip 11, and the third thin steel strip 12 respectively fit onto the three arc-shaped convex cavity walls 31 in the fixing cavity 14. Then, a fixing seat 15 with three arc-shaped concave outer walls 33 is fitted into the fixing cavity. 14. The three concave outer walls 33 of the first thin steel strip 10, the second thin steel strip 11 and the third thin steel strip 12 respectively mate with the convex arc surfaces of the outer ends 32 of the first thin steel strip 10, the second thin steel strip 11 and the third thin steel strip 12. Then, three screws 16 pass through the nail holes of the connecting seat 2 and then through the nail holes on the outer ends 13 of the first thin steel strip 10, the second thin steel strip 11 and the third thin steel strip 12 respectively, and are then locked onto the screw holes of the fixing seat 15, thereby realizing the fastening connection between the outer ends 13 of the first thin steel strip 10, the second thin steel strip 11 and the third thin steel strip 12 and the connecting seat 2 respectively.

[0036] like Figure 4 As shown, the bottom surface of the mounting base plate 17 is provided with three evenly distributed unfolding feet 34. Each of the three unfolding feet 34 has a foot pad 37 on the bottom side of its other end 36, which is rotatably engaged with the bottom surface of the mounting base plate 17 at one end 35. The three unfolding feet 34 are used to expand the contact area of ​​the foot base 4 to improve the stability of the lightweight mobile phone holder.

[0037] like Figure 7 As shown, the damper 30 consists of a fixed damping block 38 fixed to one side of the thin steel strip telescopic opening 9 within the first bifurcation body 5, a sliding damping block 39 sliding on the other side of the thin steel strip telescopic opening 9 within the first bifurcation body 5, and a damping spring 41 with one end abutting the sliding damping block 39 and the other end abutting the spring seat 40 on the inner wall of the first bifurcation body 5. The contact surface of the fixed damping block 38 that contacts the concave arc surface of the first thin steel strip 10 is a convex arc surface, and the contact surface of the sliding damping block 39 that contacts the convex arc surface of the first thin steel strip 10 is a concave arc surface, so that the first thin steel strip 10 will not be flattened at the damper 30, ensuring that the extended part of the first thin steel strip 10 has good vertical support. The damping structure of the second thin steel strip 11 and the damper in the second bifurcation body 6, and the damping structure of the third thin steel strip 12 and the damper in the third bifurcation body 7 are the same as the damping structure of the first thin steel strip 10 and the damper 30 in the first bifurcation body 5.

[0038] The damping spring 41 applies elastic pressure to the first thin steel strip 10 through the sliding damping block 39, controlling the position of the first thin steel strip 10 to be fixed whether the holder 30 is holding a lightweight shooting device or not. When the user presses or pulls the connecting seat 2, the first thin steel strip 10 can retract or extend into the first forked body 5. The spring 25 on the first thin steel strip winding mechanism 8 is designed so that when the user presses the connecting seat 2 to retract the first thin steel strip 10 into the first forked body 5, the steel belt pulley 23 can rotate due to the drive of the spring 25, so that the first thin steel strip 10 can be smoothly wound on the steel belt pulley 23 and the retraction operation of the first thin steel strip 10 is easy. The elastic pressure control applied by the damping springs of the second bifurcation body 6 and the third bifurcation body 7 to their sliding damping blocks is the same as the elastic pressure control applied by the damping spring 41 of the first bifurcation body 5 to its sliding damping block 39.

[0039] like Figure 8 As shown, the clamp 1 is rotatably fitted on the top of the connecting seat 2, and the connecting seat 2 is provided with a hand knob 42 for locking or releasing the clamp 1.

[0040] The clamp 1 consists of a fixed clamping block 43, a movable clamping block 44 slidably fitted on the fixed clamping block 43, and a tension spring with one end connected to the fixed clamping block 43 and the other end connected to the movable clamping block 44. The tension spring is located inside the fixed clamping block 43. The fixed clamping block 43 and the movable clamping block 44 form a clamping opening for the mobile phone. The rear side of the fixed clamping block 43 is provided with a connecting part 45 that is rotatably connected to the top of the connecting seat 2.

[0041] When using, such as Figure 2 As shown, the lightweight phone holder retracts to its smallest size for easy carrying; at this point, pull the connecting base 2 upwards by hand, as shown. Figure 6 As shown, the first thin steel strip 10 of the first thin steel strip winding mechanism 8 overcomes the elastic pressure of the damper 30 and extends out of the first forked body 5 from the thin steel strip telescopic opening 9. At this time, the steel belt pulley 23 overcomes the elastic restoring force of the spring 25 and rotates counterclockwise, driving the spring 25 to wind clockwise on the fixed horizontal shaft 29, accumulating driving potential energy for the clockwise rotation of the steel belt pulley 23; when the connecting seat 2 is lifted to the shooting position, it becomes Figure 1 In the state shown, the elastic pressure of the sliding damping block 39 of the damper 30 on the first thin steel strip 10 maintains the shooting bracket. Figure 1In this state, the phone can be clamped on the clamp 1. To change the angle of the phone, loosen the knob 42, rotate the clamp 1 to the appropriate angle, and then tighten the knob 42. To increase the contact area of ​​the feet 4 to improve the stability of the portable phone holder, rotate the three unfolded feet 34 to the open position. When the shooting and recording are finished and the portable phone holder is to be retracted, remove the phone from the clamp 1 and press down on the connecting seat 2. The first thin steel strip 10 is pushed back into the first forked body 5 by overcoming the elastic pressure of the damper 30. Driven by the driving potential energy of the spring 25, the steel pulley 23 rotates clockwise, and the first thin steel strip 10 pushed back into the first forked body 5 is wound clockwise around the outer surface of the steel pulley 23, thus becoming... Figure 2 Status. In the above operation process, the second thin steel strip winding mechanism and the third thin steel strip winding mechanism also perform the same synchronous actions as the first thin steel strip winding mechanism 8. For specific understanding, refer to the above-described operating principle of the first thin steel strip winding mechanism 8.

Claims

1. A lightweight mobile phone holder for live streaming recording, comprising a clamp, a connecting base, a telescopic rod, and feet, wherein the clamp is connected to the upper part of the connecting base, the upper part of the telescopic rod is connected to the connecting base, and the lower part of the telescopic rod is connected to the feet, characterized in that: The foot base extends horizontally outward from the center, comprising a first branch body, a second branch body, and a third branch body. The adjacent horizontal angles between the first, second, and third branch bodies are all 120 degrees. Each of the first, second, and third branch bodies has an independent first, second, and third thin steel strip winding mechanism. The top surfaces of each branch body have corresponding thin steel strip extension / retraction ports, allowing for the extension / retraction of thin steel strips from the first, second, and third thin steel strip winding mechanisms. The first, second, and third thin steel strips extending from the telescopic openings of the corresponding thin steel strip winding mechanisms constitute three vertical telescopic rods. The straightened sections of the first, second, and third thin steel strips are arc-shaped, thus exhibiting a straightening tendency. Each of the first, second, and third thin steel strip winding mechanisms is equipped with a damper to fix the extended positions of the first, second, and third thin steel strips. The outer ends of the first, second, and third thin steel strips are vertically inserted into the fixing cavities on the bottom surface of the connecting seat, and the outer ends are secured by fixing seats and screws that mate with the fixing cavities.

2. The lightweight mobile phone holder for live streaming recording according to claim 1, characterized in that: The base includes a mounting base plate and a first branch body, a second branch body, a third branch body, and several fastening screws fixed on the top surface of the mounting base plate. The first branch body, the second branch body, and the third branch body have the same shape and structure. The outer shell of the first branch body, the second branch body, or the third branch body is symmetrically connected from the front side and the rear side, which are divided by their vertical interface. The outer shell has a pointed corner at one end of the vertical interface, and the cross-sectional angle of the pointed corner is 120°. The first branch body, the second branch body, and the third branch body are all spliced ​​together by the pointed corners of the outer shell to form a three-pronged shape. The several fastening screws pass through the nail holes on the mounting base plate from the bottom surface and lock the first branch body, the second branch body, and the third branch body respectively.

3. The lightweight mobile phone holder for live streaming recording according to claim 1 or 2, characterized in that: The first, second, and third thin steel strips are all made of 50-65# grade 1 steel strip. The width of the steel strip is ≥25mm and the thickness is 0.1-0.2mm. The straight cross-section of the steel strip is then processed into an arc-shaped cross-section with a width of 2-5mm, thus becoming the first, second, and third thin steel strips, all of which have an arc-shaped cross-section when straightened.

4. The lightweight mobile phone holder for live streaming recording according to claim 1 or 2, characterized in that: The first, second, and third thin steel strip winding mechanisms each include a steel pulley, a corresponding thin steel strip, and a spring. The steel pulley has a wheel cavity. The steel pulley is rotatably fitted onto a fixed horizontal shaft inside the corresponding fork body through the center holes on the spoke plates on both sides of the wheel cavity. One end of the corresponding thin steel strip is fixed to the outer wheel surface of the steel pulley and coiled around the outer wheel surface of the steel pulley. The other end of the corresponding thin steel strip extends out of the corresponding fork body from the thin steel strip extension port on the top surface of the corresponding fork body after passing through the damper. The spring is located inside the wheel cavity. One end of the spring is fixed to the fixed horizontal shaft and coiled around the fixed horizontal shaft. The other end of the spring is fixed to the inner wheel surface of the steel pulley.

5. The lightweight mobile phone holder for live shooting and recording according to claim 4, characterized in that: The winding direction of the mainspring on the fixed horizontal shaft is opposite to the winding direction of the corresponding thin steel strip on the steel pulley, so that the steel pulley outputs the corresponding thin steel strip while driving the mainspring to wind on the fixed horizontal shaft.

6. The lightweight mobile phone holder for live shooting and recording according to claim 4, characterized in that: When the first, second, or third thin steel strip is wound around the outer surface of the steel pulley, the first, second, or third thin steel strip is compressed by the tension of the steel pulley, and its arc-shaped cross-section in the straightened state is elastically deformed into a flat cross-section before being wound around the steel pulley.

7. The lightweight mobile phone holder for live streaming recording according to claim 1 or 2, characterized in that: The bottom surface of the connecting seat is provided with a concave fixing cavity, and the fixing cavity has three arc-shaped convex cavity walls. The outer ends of the first, second, and third thin steel strips are respectively vertically inserted into the fixing cavity of the connecting seat, and the concave arc surfaces of the outer ends of the first, second, and third thin steel strips respectively mate with the three arc-shaped convex cavity walls in the fixing cavity. Then, a fixing seat with three arc-shaped concave outer walls is fitted into the fixing cavity, and the three arc-shaped concave cavity walls respectively mate with the convex arc surfaces of the outer ends of the first, second, and third thin steel strips. Then, three screws pass through the nail holes of the connecting seat and then through the nail holes on the outer ends of the first, second, and third thin steel strips respectively, and are then locked onto the screw holes of the fixing seat, thereby achieving a tight connection between the outer ends of the first, second, and third thin steel strips and the connecting seat.

8. The lightweight mobile phone holder for live shooting and recording according to claim 2, characterized in that: The mounting base plate has three evenly distributed unfolding feet on its bottom surface. Each of the three unfolding feet has a foot pad on its bottom side, with one end rotatably engaged with the bottom surface of the mounting base plate and the other end of the foot pad being provided with a foot pad.

9. The lightweight mobile phone holder for live streaming recording according to claim 1 or 2, characterized in that: The damper consists of a fixed damping block fixed to one side of the thin steel strip telescopic opening within the first, second, and third bifurcated bodies, a sliding damping block slidably fitted within the first, second, and third bifurcated bodies on the other side of the thin steel strip telescopic opening, and a damping spring with one end abutting the sliding damping block and the other end abutting a spring seat within the first, second, or third bifurcated body. The contact surfaces on the fixed damping block that contact the concave arc surfaces of the first, second, and third thin steel strips are all convex arc surfaces, and the contact surfaces on the sliding damping block that contact the convex arc surfaces of the first, second, and third thin steel strips are all concave arc surfaces.

10. The lightweight mobile phone holder for live shooting and recording according to claim 1 or 2, characterized in that: The clamp is rotatably fitted on the upper part of the connecting seat, and the connecting seat is provided with a hand knob for locking or releasing the clamp; the clamp consists of a fixed clamping block, a movable clamping block slidably fitted on the fixed clamping block, and a tension spring with one end connected to the fixed clamping block and the other end connected to the movable clamping block. The tension spring is located inside the fixed clamping block. The fixed clamping block and the movable clamping block form a clamping opening for a portable shooting device. The rear side of the fixed clamping block is provided with a connecting part that is rotatably connected to the upper part of the connecting seat.

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