Angle-adjustable arm structure and shooting support

Abstract

The utility model relates to a kind of angle adjustable supporting arm structure and shooting support, supporting arm structure includes first arm body, second stop piece, first base, second arm body and driving part, first arm body is hollow structure, first arm body is rotationally connected with connecting arm body around first arm body axis, connecting arm body is formed with first stop piece, second stop piece is located in hollow structure, second stop piece has the connecting portion being connected with the inner wall surface of hollow structure, connecting portion is to make second stop piece rotate synchronously with first arm body;First base is equipped with first stop portion;The one end of second arm body is equipped with second base, and second base is rotationally connected with first base, and second base is equipped with the second stop portion corresponding with the position of first stop portion;Driving part drives second stop piece and first stop piece to engage or disengage, and driving second stop portion and first stop portion engage or disengage.The utility model can realize the purpose of multi-angle shooting, and improve use experience.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of arm angle fixing adjustment more particularly, relate to an angle adjustable arm structure and shooting support. BACKGROUND

[0002] As a kind of portable shooting auxiliary tool, because it can effectively expand the range of shooting, it is convenient for user to carry out self-photography or wide-angle view, has been widely used in daily life, travel record and outdoor sports etc. Scene. Especially in mountain climbing and other outdoor activities, user often needs to record the scenery along the way, team state or personal challenge process by means of selfie stick.

[0003] And in the process of mountain climbing, it is necessary to hold selfie stick, and long time holding selfie stick will lead to the problem of use tiredness. The Chinese patent application with publication number CN202580542U discloses a shoulder and back type shooting support, including bracket, L type rod, heightening plate, support rod, shoulder binding device, waist binding device, camera protection cover, support rod is connected in the bracket below, waist binding device is connected near the lower end of support rod, shoulder binding device is connected on the support rod above waist binding device, camera is directly fixed on bracket, or camera is connected with L type rod after bracket and L type rod are connected, or camera is connected with heightening plate after bracket and heightening plate are connected, camera protection cover is connected on bracket. The technical scheme solves the problem of tiredness caused by hand-held shooting, but since the angle of support rod is difficult to adjust, when using the shoulder and back type shooting support, the purpose of multi-angle shooting cannot be realized, thereby affecting use experience. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the problem that the angle of support rod in prior art shoulder and back type shooting support is difficult to adjust, the purpose of multi-angle shooting cannot be realized, thereby affecting use experience, provide a kind of angle adjustable arm structure and shooting support.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is: An angle-adjustable outrigger structure is provided, comprising a first arm body, a second stop, a first base, a second arm body, and a drive component. The first arm body has a hollow internal structure. One end of the first arm body is rotatably connected to a connecting arm body about its axis. The portion of the connecting arm body located in the hollow structure forms the first stop. A second stop is disposed within the hollow structure. The second stop or the first stop has a connecting portion connected to the inner wall surface of the hollow structure. The connecting portion allows the second stop to rotate synchronously with the first arm body or the first stop to rotate synchronously with the connecting arm body. The first base is connected to the end of the connecting arm away from the first stop, and a first stop is provided on the first base; a second base is provided at one end of the second arm, and the second base is rotatably connected to the first base, and a second stop is provided on the second base corresponding to the position of the first stop; the driving member is connected to the second stop to drive the second stop to engage or disengage from the first stop; the driving member is also connected to the second stop or the first stop to drive the second stop to engage or disengage from the first stop.

[0006] In the technical solution of this application, it should be noted that when the first stop and the second stop are engaged together, and the connecting part abuts against the inner wall surface of the hollow structure, the connecting arm and the first arm cannot rotate relative to each other. The rotation of the connecting arm relative to the first arm can only be adjusted after the first stop and the second stop are disengaged by operating the driving component; or the first stop and the second stop can be engaged by operating the driving component. Furthermore, when the first stop and the second stop are engaged, the angle between the first arm and the second arm cannot be adjusted. The angle between the second arm and the first arm can only be adjusted after the first stop and the second stop are disengaged by operating the driving component; or the first stop and the second stop can be engaged by operating the driving component.

[0007] In use, the end of the first arm furthest from the second arm can be connected to the shoulder-mounted main body, while the end of the second arm furthest from the first arm is connected to the structure for mounting the shooting equipment. Since the connecting arm and the first arm can rotate around the axis of the first arm, rotating the connecting arm causes the second arm and the shooting equipment mounted on it to rotate together, thus achieving angle adjustment. Furthermore, because the first base and the second base are rotatably connected, rotating the second base allows adjustment of the angle between the second arm and the first arm, further enabling angle adjustment of the shooting equipment mounted on the second arm. This achieves multi-angle shooting and enhances the user experience.

[0008] Furthermore, the driving component includes a control rope located inside the first arm body and the second arm body. When the control rope is tightened, the control rope drives the second stop to engage or disengage with the first stop, and drives the second stop portion to engage or disengage with the first stop portion.

[0009] Furthermore, the first stop and the second stop are respectively provided with a first engagement portion and a second engagement portion on opposite sides. The driving member drives the second stop to move toward / away from the first stop, so that the second engagement portion engages or disengages from the first engagement portion.

[0010] Furthermore, the outer peripheral surface of the second stop has the connecting portion, which is connected to the inner wall surface of the hollow structure so that the connecting portion can slide along the axis of the first arm and rotate synchronously with the first arm.

[0011] Furthermore, a first elastic member is provided between the first stop and the second stop for resetting and separating the first stop and the second stop. One end of the first elastic member is connected to the first stop, and the other end of the first elastic member is connected to the second stop.

[0012] Furthermore, a fixing plate is installed on the inner wall of the hollow structure. The fixing plate is located below the second stop. A first elastic member is provided between the fixing plate and the second stop. The first elastic member enables the second stop to reposition and engage with the first stop.

[0013] Furthermore, both the first joint and the second joint are interlocking tooth-like structures or contacting friction surface structures.

[0014] Furthermore, the first stop includes a sleeve with an opening facing the second stop, the outer wall surface of the sleeve has a notch along the axial direction of the sleeve, the connecting portion is fitted on the outer peripheral surface of the sleeve, the second stop has a tapered portion that gradually decreases in size along the direction of the second stop towards the first stop, and the driving member drives the tapered portion to extend into the opening so that the connecting portion contacts the inner wall surface of the hollow structure.

[0015] Furthermore, the first base is provided with a mounting hole, and the second base is provided with a mounting post, the mounting post passing through the mounting hole.

[0016] Furthermore, the first stop is disposed on the side of the first base away from the second base, the second stop is sleeved on the mounting post and is disposed opposite to the first stop, and the driving member is connected to the second stop to drive the second stop to engage or disengage from the first stop.

[0017] Furthermore, the first stop and the second stop are respectively provided with a third engagement portion and a fourth engagement portion on opposite sides. The driving member drives the second stop to move toward / away from the first stop, so that the third engagement portion engages or disengages from the fourth engagement portion.

[0018] Furthermore, the third joint and the fourth joint are interlocking tooth-like structures or friction surface structures that rub against each other.

[0019] Furthermore, a second elastic member is provided between the first stop and the second stop for resetting and separating the first stop and the second stop. One end of the second elastic member is connected to the first stop, and the other end of the second elastic member is connected to the second stop. The driving member drives the second stop to move toward the first stop, so that the friction surface structure or tooth structure of the second stop engages with the friction surface structure or tooth structure of the first stop.

[0020] Furthermore, a fixing plate is also provided on the connecting arm body, and a second elastic member is provided between the fixing plate and the second stop part for resetting engagement between the second stop part and the first stop part. The driving member drives the second stop part to move away from the first stop part so that the friction surface structure or tooth structure of the second stop part disengages from the friction surface structure or tooth structure of the first stop part.

[0021] Furthermore, the first stop is located on the inner wall of the mounting hole, and two stop blocks are provided in the mounting hole. The second stop is provided on the circumferential surface of the stop block facing the inner wall of the first mounting hole. Sliding grooves are provided on the opposite sides of the two stop blocks. The two stop blocks are respectively engaged on both sides of the mounting post through the sliding grooves. There is a gap between the two stop blocks. A second elastic member is provided in the gap. The two ends of the second elastic member are respectively connected to one of the stop blocks. An actuator is also inserted in the gap. The driving member is connected to the actuator. The driving member drives the actuator to be inserted into the gap so that the second stop and the first stop engage.

[0022] Furthermore, the mounting post is a hollow structure, and a through groove communicating with the hollow structure is provided on the circumferential surface of the mounting post along its axial direction. The second stop is provided on the circumferential surface of the mounting post. The first stop is provided in the hollow structure to expand the mounting post. The driving member is connected to the first stop to drive the first stop to extend into the hollow structure so that the second stop contacts the inner circumferential wall of the mounting hole.

[0023] Furthermore, the first base is provided with a mounting hole, and the second base is provided with a mounting post, the mounting post passing through the mounting hole; the second stop is formed on the circumferential surface of the mounting post, the second stop is a toothed structure or a friction surface structure, the first stop is located in the connecting arm body, the first stop has a toothed structure or a friction surface structure that meshes with the second stop, a second elastic member in a compressed state is provided between the bottom of the first stop and the inner bottom of the connecting arm body for resetting engagement between the first stop and the second stop, and the driving member is connected to the first stop to drive the first stop to disengage from the second stop.

[0024] Furthermore, both the first stop and the second stop have a funnel structure with an opening facing the second arm body. The funnel structure of the first stop is located in the second stop. The bottom of the second stop is provided with the connecting part. The driving member is connected to the second stop to drive the second stop to move closer to or away from the first stop, so that the second stop engages or disengages from the first stop. An actuating member is connected to the first stop. The actuating member is connected to the driving member so that the second stop part engages or disengages from the first stop part.

[0025] Furthermore, the second base has a second stop portion extending into the first base. The second stop portion is a cylindrical structure. A connecting arm extending into the cylindrical structure is provided inside the first base. A lever is rotatably connected to the connecting arm. A second elastic element is provided at one end of the lever near the second base. One end of the second elastic element is connected to the lever, and the other end of the second elastic element is connected to the connecting arm. A first mounting hole is provided at the end of the lever with the second elastic element. A second mounting hole and a third mounting hole are provided on the connecting arm at both ends of the cylindrical structure. The third mounting hole is located below the first mounting hole. The control rope passes through the third mounting hole, the first mounting hole, the third mounting hole, and the second mounting hole in sequence and is connected to the second stop portion. The actuator includes a first scissor arm and a second scissor arm hinged to each other. The bottom of the first scissor arm is connected to the first stop, and the bottom of the second scissor arm is connected to the other end of the lever via a connecting rope. The top of the second scissor arm is connected to the first stop located below the second stop. The first stop has an arc-shaped structure. When the control rope is tightened, the first stop moves toward the second stop and engages with the second stop.

[0026] Further, the first stop and the second stop are respectively formed on the circumferential surfaces of the first base and the second base; the actuator includes a first scissor arm and a second scissor arm hinged to each other, the bottom of the first scissor arm is connected to the first stop, the bottom of the second scissor arm is provided with a guide post connected to it at one end, the other end of the guide post is slidably connected to the top of the first scissor arm, and a brake block is connected to the top of the second scissor arm, the brake block being located on one side of the first stop and the second stop; a second elastic member is connected between the bottom of the first scissor arm and the top of the second scissor arm or between the bottom of the second scissor arm and the top of the first scissor arm; a connecting rod is slidably connected to the guide post, and the driving member is connected to the connecting rod to drive the top of the first scissor arm to move away from the bottom of the first scissor arm so that the brake block fits against the first stop and the second stop.

[0027] Furthermore, the first stop and the second stop are respectively formed on the circumferential surfaces of the first base and the second base; the actuator includes a first scissor arm, a second scissor arm, and a control rod hinged to each other; the bottom of the first scissor arm is connected to the first stop; the bottom of the first scissor arm is connected to the top of the second scissor arm by a second elastic member; the top of the second scissor arm is connected to a brake block, which is located on one side of the first stop and the second stop; the first stop is connected to a connecting rope, one end of which is connected to the first stop, and the other end of which passes through a first through hole on the control rod and is connected to the stop block; the control rope connects to the second stop and passes through the central hole of the first base and the second base, and is connected to the other end of the control rod to drive the stop block away from the first stop and the second stop, and to disengage the second stop from the first stop.

[0028] Furthermore, the first base is provided with a hollow mounting post, and the second base is provided with mounting holes; Alternatively, a hollow mounting post may be provided on the second base, and a mounting hole may be provided on the first base; the mounting post may pass through the mounting hole; a second stop portion with a toothed structure or friction surface structure may be provided on the circumferential surface of the second base or the circumferential surface of the mounting post of the second base; the first stop portion may have a toothed structure or friction surface structure adapted to the second stop portion; a fixing block may be installed inside the first arm body; the first stop member may extend upward and slide through the fixing block to form a fixing post; the first stop portion may be slidably connected to the inner wall surface of the connecting arm body; the driving member may be connected to the fixing post and the first stop portion respectively; an actuator may be connected between the fixing post and the first stop portion to make the fixing post and the first stop portion move towards each other under the action of the driving member to realize the separation of the first stop portion from the second stop portion and the separation of the first stop member from the second stop member.

[0029] Furthermore, the actuator includes a first elastic member connected between the first stop and the fixed post, a first hook-shaped structure disposed at the bottom of the first stop, and a second hook-shaped structure disposed at the top of the fixed post. The inner wall surface of the connecting arm body is provided with a first connecting hole structure and a second connecting hole structure in sequence along the axial direction of the connecting arm body. The drive component includes a control rope. One end of the control rope is located in the first arm body, and the other end of the control rope passes through the second stop, the first stop, the first connecting hole structure, and is connected to the second hook-shaped structure. After being connected to the first hook-shaped structure and passing through the second connecting hole structure, the control rope winds around the crossbar located in the hollow structure or passes through the mounting post before extending into the second arm body. When the control rope is pulled, the control rope causes the first hook structure and the second hook structure to move towards each other, causing the first stop part to disengage from the second stop part and the first stop member to disengage from the second stop member.

[0030] Further, the actuator includes a first annular slider and a second annular slider that slide circumferentially on the inner wall of the connecting arm. The first and second annular sliders are respectively provided with a first guide groove and a second guide groove at an incline. A mounting plate is disposed within the connecting arm, located between the first and second annular sliders. A column is mounted on the mounting plate, with both ends of the column extending into the first and second annular sliders respectively. Perforated vertical plates are connected to both sides of the mounting plate. The inner walls of the first and second annular sliders are respectively provided with a first connecting hole and a second connecting hole corresponding to the perforation positions. The two ends of the column are respectively... A torsion spring is fitted on the frame, one end of which is connected to the upright plate, and the other end of which is connected to the inner wall of the corresponding first or second annular slider. A first sliding rod is provided on the fixed column, and the end of the first sliding rod extends into the second guide groove. A second sliding rod is provided at the bottom of the first stop, and the end of the second sliding rod extends into the first guide groove. The driving component includes a control rope, one end of which is located in the first arm body, and the other end of which passes through the second stop, the first stop, a through hole, the second connecting hole, the first connecting hole, the through hole, and the first stop, then winds around the crossbar located in the hollow structure or passes through the mounting column before extending into the second arm body. When the control rope is pulled, the control rope drives the first and second annular sliders to rotate, and drives the first sliding rod to move along the first guide groove and the second sliding rod to move along the second guide groove, so that the first stop part disengages from the second stop part and the first stop member disengages from the second stop member.

[0031] Furthermore, the driving member has a first actuating end and a second actuating end, and the first stop portion and the second stop portion are respectively formed on the circumferential surface of the first base and the second base; Both the first stop and the second stop have a funnel structure with an opening facing the second arm. The funnel structure of the first stop is located in the second stop. The bottom of the second stop is provided with the connecting part. The first actuating end of the driving member is connected to the first stop. The second actuating end of the driving member is connected to a brake block. The driving member drives the brake block to disengage from the first stop and the second stop or drives the brake block to engage with the first stop and the second stop; and drives the first stop to disengage from the second stop or engage with the second stop.

[0032] Furthermore, the driving component has a first actuating end and a second actuating end. The first base is provided with a mounting hole, and the second base is provided with a mounting post. The mounting post passes through the mounting hole and has a cylindrical structure within the connecting arm body. The second stop portion is located on the outer circumferential surface of the cylindrical structure. Both the first stop and the second stop have a funnel structure with an opening facing the second arm. The funnel structure of the first stop is located in the second stop. The bottom of the second stop is provided with the connecting part. The first actuating end of the driving member is connected to the first stop, and the second actuating end of the driving member is connected to the first stop. The first stop is an arc-shaped structure and is located below the second stop. The driving member drives the first stop to disengage from or engage with the second stop; and drives the first stop to disengage from or engage with the second stop.

[0033] In another aspect, this utility model provides a shooting bracket, including a shoulder-back type main body, a mounting base for mounting shooting equipment, and a support arm structure as described above. The end of the first arm away from the second arm is connected to the shoulder-back type main body, and the end of the second arm away from the first arm is connected to the mounting base.

[0034] Compared with the prior art, the beneficial effects of this utility model are: In the support arm structure of this utility model, the end of the first arm away from the second arm can be connected to the shoulder-mounted main body, and the end of the second arm away from the first arm is connected to the structure for mounting the shooting equipment. Since the connecting arm and the first arm can rotate around the axis of the first arm, rotating the connecting arm will drive the second arm and the shooting equipment mounted on the second arm to rotate together, thereby achieving angle adjustment. In addition, since the first base and the second base are rotatably connected, the angle between the second arm and the first arm can be adjusted by rotating the second base, further realizing angle adjustment of the shooting equipment mounted on the second arm, thereby achieving the purpose of multi-angle shooting and improving the user experience.

[0035] The shooting bracket of this utility model can achieve the purpose of shooting from multiple angles, thus improving the user experience. Attached Figure Description

[0036] Figure 1 This is a partial cross-sectional schematic diagram of Embodiment 2 of the adjustable-angle support arm structure of this utility model; Figure 2 This is a partial cross-sectional schematic diagram of another perspective of Embodiment 2 of the adjustable-angle support arm structure of this utility model. Figure 3This is a schematic diagram of the structure of embodiment 3 of the adjustable-angle support arm of this utility model; Figure 4 This is a partial cross-sectional schematic diagram of another perspective of Embodiment 3 of the adjustable-angle support arm structure of this utility model. Figure 5 This is a partial cross-sectional schematic diagram of Embodiment 6 of the adjustable-angle support arm structure of this utility model; Figure 6 This is a schematic diagram of another perspective of Embodiment 6 of the adjustable-angle support arm structure of this utility model; Figure 7 This is a partial cross-sectional schematic diagram of another structure of Embodiment 2 of the adjustable-angle support arm structure of this utility model; Figure 8 This is an exploded view of Embodiment 2 of the adjustable-angle support arm structure of this utility model; Figure 9 This is a partial cross-sectional schematic diagram of Embodiment 4 of the adjustable-angle support arm structure of this utility model; Figure 10 This is a partial cross-sectional schematic diagram of another perspective of Embodiment 4 of the adjustable-angle support arm structure of this utility model. Figure 11 This is a partial cross-sectional schematic diagram of Embodiment 5 of the adjustable-angle support arm structure of this utility model; Figure 12 This is a partial cross-sectional schematic diagram of another perspective of Embodiment 5 of the adjustable-angle support arm structure of this utility model. Figure 13 This is a partial cross-sectional schematic diagram of Embodiment 7 of the adjustable-angle support arm structure of this utility model; Figure 14 This is a partial cross-sectional schematic diagram of another perspective of Embodiment 7 of the adjustable-angle support arm structure of this utility model. Figure 15 This is a partial cross-sectional schematic diagram of Embodiment 9 of the adjustable-angle support arm structure of this utility model; Figure 16 This is a partial cross-sectional schematic diagram of another perspective of Embodiment 9 of the adjustable-angle support arm structure of this utility model. Figure 17 This is a partial cross-sectional schematic diagram of another structure of the adjustable-angle support arm structure of this utility model, embodiment 7. Figure 18 This is an exploded view of embodiment 7 of the adjustable-angle support arm structure of this utility model; Figure 19 This is a partial cross-sectional schematic diagram of Embodiment 8 of the adjustable-angle support arm structure of this utility model; Figure 20This is a partial cross-sectional schematic diagram of another perspective of Embodiment 8 of the adjustable-angle support arm structure of this utility model. Figure 21 This is a partial cross-sectional schematic diagram of Embodiment 12 of the adjustable-angle support arm structure of this utility model; Figure 22 This is a partial cross-sectional view of Embodiment 12 of the adjustable-angle support arm structure of this utility model from a first perspective. Figure 23 This is a partial cross-sectional view of Embodiment 12 of the adjustable-angle support arm structure of this utility model from a second perspective. Figure 24 This is an exploded view of embodiment 12 of the adjustable-angle support arm structure of this utility model; Figure 25 This is a partial cross-sectional schematic diagram of Embodiment 10 of the adjustable-angle support arm structure of this utility model; Figure 26 This is a partial exploded cross-sectional view of Embodiment 10 of the adjustable-angle support arm structure of this utility model; Figure 27 This is a partial cross-sectional schematic diagram of another embodiment of the adjustable-angle support arm structure of this utility model (Example 10). Figure 28 This is a partial exploded cross-sectional view of another embodiment of the adjustable-angle support arm structure of this utility model, embodiment 10. Figure 29 This is a partial cross-sectional view of Embodiment 11 of the adjustable-angle support arm structure of this utility model.

[0037] In the attached diagram: 1. First arm body; 11. Hollow structure; 2. Connecting arm body; 3. First stop; 4. Second stop; 5. Connecting part; 6. First base; 7. First stop; 8. Second arm body; 9. Second base; 10. Second stop; 12. Driving component; 13. First elastic component; 14. First joint; 15. Second joint; 16. Third joint; 17. Fourth joint; 19. Stop block; 20. Second elastic component; 22. Spacing; 21. Actuator; 23. Brake block; 24. Mounting post; 241. Guide groove structure; 26. Connecting arm; 25. Fixing block; 261. Gear; 27. Lever; 271. First mounting hole; 28. Second mounting hole; 29. ​​Telescopic component. 30. Guide sleeve; 31. Connecting rope; 32. Fixing plate; 33. Mounting plate; 34. Fixing post; 25. First scissor arm; 26. Second scissor arm; 27. Control rod; 28. Guide post; 29. ​​Connecting rod; 20. First connecting rod; 21. Second connecting rod; 22. First annular slider; 33. Second annular slider; 34. First guide groove; 35. Second guide groove; 46. Column; 47. Through hole; 48. Vertical plate; 49. First connecting hole; 40. Second connecting hole; 51. Torsion spring; 42. First sliding rod; 43. Second sliding rod; 44. First hook structure; 55. Second hook structure; 56. First connecting hole structure; 57. Second connecting hole structure. Detailed Implementation

[0038] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0039] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0040] Example 1 like Figures 1 to 29As shown, an angle-adjustable support arm structure includes a first arm body 1, a second stop 4, a first base 6, a second arm body 8, and a drive component 12. The first arm body 1 has a hollow structure 11 inside. One end of the first arm body 1 is rotatably connected to a connecting arm body 2 around the axis of the first arm body 1. The portion of the connecting arm body 2 located in the hollow structure 11 forms a first stop 3. The second stop 4 is disposed in the hollow structure 11. The second stop 4 or the first stop 3 has a connecting portion 5 that connects to the inner wall surface of the hollow structure 11. The connecting portion 5 allows the second stop 4 to rotate synchronously with the first arm body 1 or allows the first stop 3 to rotate synchronously with the connecting arm body 8. The connecting arm 2 rotates synchronously; the first base 6 is connected to the end of the connecting arm 2 away from the first stop 3, and the first base 6 is provided with a first stop 7; one end of the second arm 8 is provided with a second base 9, which is rotatably connected to the first base 6, and the second base 9 is provided with a second stop 10 corresponding to the position of the first stop 7; the driving member 12 is connected to the second stop 4 to drive the second stop 4 to engage or disengage from the first stop 3; the driving member 12 is also connected to the second stop 10 or the first stop 7 to drive the second stop 10 to engage or disengage from the first stop 7.

[0041] It should be noted that when the first stop 3 and the second stop 4 are engaged, and the connection between the connecting part 5 and the inner wall of the hollow structure 11 is established, the connecting arm 2 and the first arm 1 cannot rotate relative to each other. The rotation of the connecting arm 2 relative to the first arm 1 can only be adjusted after the first stop 3 and the second stop 4 are disengaged by operating the drive member 12; or the first stop 3 and the second stop 4 can be engaged by operating the drive member 12. Furthermore, when the first stop 7 and the second stop 10 are engaged, the angle between the first arm 1 and the second arm 8 cannot be adjusted. The angle between the second arm 8 and the first arm 1 can only be adjusted after the first stop 7 and the second stop 10 are disengaged by operating the drive member 12; or the first stop 7 and the second stop 10 can be engaged by operating the drive member 12.

[0042] In use, the end of the first arm 1 furthest from the second arm 8 can be connected to the shoulder-mounted main body, while the end of the second arm 8 furthest from the first arm 1 is connected to the structure for mounting the shooting equipment. Since the connecting arm 2 and the first arm 1 can rotate around the axis of the first arm 1, rotating the connecting arm 2 causes the second arm 8 and the shooting equipment mounted on the second arm 8 to rotate together, thus achieving angle adjustment. Furthermore, since the first base 6 and the second base 9 are rotatably connected, rotating the second base 9 allows adjustment of the angle between the second arm 8 and the first arm 1, further enabling angle adjustment of the shooting equipment mounted on the second arm 8, thereby achieving multi-angle shooting and improving the user experience.

[0043] It should also be noted that the relative rotation between the first base 6 and the second base 9 is around the pivot axis that connects the first base 6 and the second base 9. Through the rotational connection between the first base 6 and the second base 9, the angle between the first arm 1 and the second arm 8 can be adjusted.

[0044] Example 2 like Figure 1 , Figure 2 and Figure 7 , Figure 8 As shown, unlike Embodiment 1, in this embodiment, the first stop 3 and the second stop 4 are respectively provided with a first engaging portion 14 and a second engaging portion 15 on opposite sides. The driving member 12 drives the second stop 4 to move towards the first stop 3, so that the second engaging portion 15 of the second stop 4 engages with the first engaging portion 14 of the first stop 3. In this embodiment, without the driving member 12 applying force to the first stop 3 and the second stop 4, the first engaging portion 14 of the first stop 3 and the second engaging portion 15 of the second stop 4 are in an unengaged state. Engagement can be in a meshing or frictional contact state. Since the first engaging portion 14 of the first stop 3 and the second engaging portion 15 of the second stop 4 are in an unengaged state, by rotating the connecting arm 2, the connecting arm 2 rotates around the axial direction of the first arm 1, thereby achieving the purpose of adjusting the angle of the second arm 8 as a whole. When the driving member 12 applies force to the second stop member 4 or the first stop member 3, the first engagement portion 14 of the first stop member 3 engages with the second engagement portion 15 of the second stop member 4, thereby locking the connecting arm body 2 to the first arm body 1. Under this locked condition, the connecting arm body 2 cannot rotate around the axis of the first arm body 1.

[0045] It should be noted that both the first joint 14 and the second joint 15 are interlocking tooth-like structures or contacting friction surfaces.

[0046] The second stop 4 has a connecting portion 5 on its outer peripheral surface. The connecting portion 5 is connected to the inner wall of the hollow structure 11 so that the connecting portion 5 can slide along the axis of the first arm 1 and rotate synchronously with the first arm 1. The connecting portion 5 can be a plurality of protrusions provided on the outer peripheral surface of the second stop 4. A sliding groove adapted to the protrusion is formed on the inner wall of the hollow structure 11 along the axial direction of the first arm 1. The protrusion is slidably connected to the sliding groove. The sliding groove can limit the circumferential rotation of the protrusion, but does not limit the sliding of the protrusion along the axial direction of the first arm 1. In this embodiment, since the connecting portion 5 of the second stop 4 is connected to the inner wall of the hollow structure 11 and can slide along the axial direction of the first arm 1 and rotate synchronously with the first arm 1, and since the second stop 4 cannot rotate relative to the first arm 1 in the circumferential direction, but can only rotate synchronously with the first arm 1 in the circumferential direction, when the first stop 3 and the second stop 4 are engaged together, the relative rotation between the connecting arm 2 and the first arm 1 can be locked.

[0047] Furthermore, a first elastic element 13 is provided between the first stop 3 and the second stop 4 for resetting and separating the first stop 3 and the second stop 4. One end of the first elastic element 13 is connected to the first stop 3, and the other end of the first elastic element 13 is connected to the second stop 4. In this embodiment, since the first elastic element 13 is provided between the first stop 3 and the second stop 4, when the driving member 12 does not apply force to the first stop 3 or the second stop 4, the first elastic element 13 can drive the first stop 3 and the second stop 4 to separate. It should be noted that "resetting and separating" means that when the driving member 12 does not apply force to the first stop 3 and the second stop 4, the first stop 3 and the second stop 4 are reset and can be in a separated state.

[0048] The first stop 3 and / or the second stop 4 are provided with receiving grooves for accommodating the first elastic member 13. In this embodiment, since the first elastic member 13 is accommodated in the receiving groove, when the driving member 12 drives the first stop 3 and the second stop 4 to engage, the first elastic member 13 is compressed in the receiving groove to ensure that the first elastic member 13 has compression space, thereby avoiding interference between the first stop 3 and the second stop 4 due to the presence of the first elastic member 13.

[0049] In addition, the first base 6 is provided with a mounting hole, and the second base 9 is provided with a mounting post 24, which passes through the mounting hole. A first stop 7 is located on the side of the first base 6 away from the second base 9. A second stop 10 is sleeved on the mounting post 24 and is positioned opposite to the first stop 7. A driving member 12 is connected to the second stop 10 to drive the second stop 10 to engage with the first stop 7. In this embodiment, without applying force to the first stop 7 and the second stop 10, the first stop 7 and the second stop 10 are in a non-engaged or non-contact state. Because the first stop 7 and the second stop 10 are in a non-engaged or non-contact state, rotating the second base 9 causes it to rotate around the rotation axis pivotally connected to the first base 6, thereby adjusting the angle between the second arm 8 and the first arm 1. When the driving member 12 applies force to the second stop 10 or the first stop 7, the first stop 7 and the second stop 10 engage together, thereby locking the first base 6 and the second base 9. Under this locked condition, the relative angle between the first base 6 and the second base 9 cannot be adjusted.

[0050] In this embodiment, the first stop 7 and the second stop 10 have a third engaging portion 16 and a fourth engaging portion 17 respectively on their opposite sides. The driving member 12 drives the second stop 10 to move closer to the first stop 7, so that the third engaging portion 16 and the fourth engaging portion 17 engage. It should be noted that "engagement" can be understood as a state of meshing or frictional contact. The third engaging portion 16 and the fourth engaging portion 17 can be mutually meshing tooth-like structures or mutually rubbing frictional surfaces. In this embodiment, when the third engaging portion 16 of the first stop 7 meshes with the tooth-like structure or the frictional surface structure of the fourth engaging portion 17 of the second stop 10, the first stop 7 and the second stop 10 are engaged together. In this case, it is difficult to adjust the angle between the first base 6 and the second base 9.

[0051] Furthermore, a second elastic member 20 is provided between the first stop portion 7 and the second stop portion 10 for resetting and separating the first stop portion 7 and the second stop portion 10. One end of the second elastic member 20 is connected to the first stop portion 7, and the other end of the second elastic member 20 is connected to the second stop portion 10. The driving member 12 drives the second stop portion 10 to move towards the first stop portion 7, so that the fourth engaging portion 17 of the second stop portion 10 engages with the third engaging portion 16 of the first stop portion 7. In this embodiment, since the second elastic member 20 is provided between the first stop portion 7 and the second stop portion 10, even when the driving member 12 does not apply force to the first stop portion 7 or the second stop portion 10, the second elastic member 20 can drive the first stop portion 7 and the second stop portion 10 to separate under the action of the second elastic member 20.

[0052] It should be noted that in this embodiment, the driving component 12 may include a control rope, which is threaded through the first arm body 1, the connecting arm body 2, and the second arm body 8. The control rope is distributed between the second stop 4 and the second stop portion 10. The end of the control rope near the second arm body 8 is fixed, and the end near the first arm body 1 is also fixed. The control rope fixed at one end of the second arm body 8 allows for convenient user operation. By tightening the control rope at that end of the second arm body 8, the second stop 4 moves towards the first stop 3, thereby locking the first stop 3 and the second stop 4, and simultaneously locking the first stop portion 7 and the second stop portion 10. Specifically, the second stop portion 10 has a through hole, which is fitted onto the mounting post 24. The mounting post 24 has a hollow structure and is connected to the second base 9 (e.g., Figure 1 As shown), a guide groove structure 241 is provided on the mounting column 24, and a connector (not shown in the figure) is horizontally connected in the through hole. The connector is slidably connected in the guide groove structure 241, and the control rope is passed through the first arm body 1 (as shown in the figure). Figure 1 (as shown), and then it passes through the inside of the connecting arm 2 (as shown). Figure 1 As shown), it then enters through the interior of the mounting post 24 of the second base 9 (as shown). Figure 1 (As shown) then wraps around to the connector, then passes through the inside of the mounting post 24 and enters the second arm body 8 (as shown) Figure 1 (As shown). When the control rope is tensioned near one end of the first arm 1, the control rope pulls the connector, which moves along the guide groove structure 241 and drives the second stop 10 to move towards the first stop 7, causing the second stop 10 to engage with the first stop 7 to lock the first stop 7 and the second stop 10. It should also be noted that the driving member 12 is not limited to the control rope configuration of this embodiment; other structures that can achieve engagement between the first stop 3 and the second stop 4, and between the first stop 7 and the second stop 10, are also within the scope of protection of this patent.

[0053] Example 3 like Figure 3 , Figure 4 As shown, the difference from Embodiment 2 is that the first base 6 is provided with a mounting hole, and the second base 9 is provided with a mounting post 24, which passes through the mounting hole.

[0054] The first stop 7 is located on the inner wall of the mounting hole. Two stop blocks 19 are provided in the mounting hole. The second stop 10 is provided on the circumferential surface of the inner wall of the stop block 19 facing the first mounting hole 271. Slide grooves are provided on the opposite sides of the two stop blocks 19. The two stop blocks 19 are respectively locked on both sides of the mounting post (not shown in the figure) through the slide grooves. There is a gap between the two stop blocks 19. A second elastic member 20 is provided in the gap. The two ends of the second elastic member 20 are respectively connected to one of the stop blocks 19. An actuator 21 is also inserted in the gap. A drive member 12 is connected to the actuator 21. The drive member 12 drives the actuator 21 to be inserted into the gap so that the second stop 10 engages with the first stop 7.

[0055] In this embodiment, the peripheral surface of the first stop portion 7 may be provided with a toothed structure or a friction surface structure. Two stop blocks 19 are provided with second stop portions 10 facing the peripheral surface of the first stop portion 7. The second stop portions 10 and the first stop portion 7 have compatible toothed structures or friction surface structures. When the toothed structure or friction surface structure of the first stop portion 7 engages with the toothed structure or friction surface structure of the second stop portion 10, the first base 6 and the second base 9 are locked together, making it difficult for the first base 6 and the second base 9 to rotate relative to each other. Since the driving member 12 is connected to the actuating member 21, and the actuating member 21 is located between the two second stop blocks 19, when the driving member 12 drives the actuating member 21 to move towards the insertion gap, the actuating member 21 pushes the two stop blocks 19 towards the first stop portion 7, causing the first stop portion 7 to engage with the second stop portion 10. Simultaneously with the engagement of the first stop portion 7 and the second stop portion 10, the second elastic member 20 located in the gap is stretched. When the driving member 12 does not apply force to the actuator 21, the second elastic member 20 pulls the two stop blocks 19 toward each other to restore their deformation, causing the second stop part 10 to disengage from the first stop part 7.

[0056] It should be noted that the actuator 21 is an actuator block, which can be a conical structure. The cross-sectional area of ​​the end of the actuator block that extends into the gap is smaller than the cross-sectional area of ​​the other end of the actuator block that does not extend into the gap. In this way, as the actuator block gradually extends into the gap, it can gradually push the stop block 19 to move towards the first stop part 7.

[0057] Example 4 like Figure 9 , Figure 10 As shown, the difference from embodiment 3 is that the first stop 3 includes a sleeve with an opening facing the second stop 4. The outer wall surface of the sleeve has a notch along the axial direction of the sleeve. A connecting part 5 is fitted on the outer peripheral surface of the sleeve. The second stop 4 has a tapered part that gradually decreases in size along the direction of the second stop 4 toward the first stop 3. The driving member 12 drives the tapered part to extend into the opening so that the connecting part 5 contacts the inner wall surface of the hollow structure 11.

[0058] In this embodiment, when the driving member 12 drives the second stop member 4 to move towards the sleeve and extend into the sleeve, since the second stop member 4 is a conical part, during the process of the second stop member 4 extending into the sleeve, the second stop member 4 expands the sleeve and causes the connecting part 5 located on the outer circumferential surface of the sleeve to contact the inner wall surface of the hollow structure 11 of the first connecting arm 26, thereby locking the circumferential rotational movement between the first connecting arm 26 and the connecting arm body 2. It should be noted that when the connecting part 5 contacts the inner wall surface of the hollow structure 11, the friction between the connecting part 5 and the inner wall surface of the hollow structure 11 makes it difficult for the connecting arm body 2 to rotate relative to the first connecting arm 26.

[0059] The mounting post 24 is a hollow structure. A through groove connecting the hollow structure is provided on the circumferential surface of the mounting post 24 along its axial direction. The second stop part 10 is provided on the circumferential surface of the mounting post 24. A first stop part 7 is provided in the hollow structure to expand the mounting post 24. The driving member 12 is connected to the first stop part 7 to drive the first stop part 7 to extend into the hollow structure so that the second stop part 10 contacts the inner circumferential wall surface of the mounting hole, that is, contacts the inner wall surface of the first base 6.

[0060] In this embodiment, when the driving member 12 drives the first stop 7 to move towards the hollow structure and extend into the mounting post 24, the first stop 7 causes the mounting post 24 to expand. As the first stop 7 extends into the mounting post 24 and causes it to expand, the second stop 10 located on the outer circumferential surface of the mounting post 24 contacts the inner circumferential wall of the mounting hole, i.e., contacts the inner wall of the first base 6, thereby locking the pivotal rotation between the first base 6 and the second base 9. It should be noted that the second stop 10 can be sleeved on the circumferential surface of the mounting post 24, and the second stop 10 can be a friction structure capable of contacting the inner circumferential surface of the mounting hole.

[0061] Example 5 like Figure 11 , Figure 12 As shown, the difference from Embodiment 1 is that both the first stop 3 and the second stop 4 have a funnel structure with an opening facing the second arm 8. The funnel structure of the first stop 3 is located in the second stop 4. A connecting part 5 is provided at the bottom of the second stop 4. The driving member 12 is connected to the second stop 4 to drive the second stop 4 toward the first stop 3 and make the second stop 4 engage with the first stop 3. An actuating member 21 is connected to the first stop 3. The actuating member 21 is connected to the driving member 12 so that the second stop part 10 engages with the first stop part 7.

[0062] In this embodiment, the driving member 12 drives the second stop 4 to move closer to the first stop 3, so that the inner wall surface of the funnel structure of the second stop 4 contacts the inner wall surface of the hole structure of the first stop 3. Since the connecting part 5 and the inner wall surface of the hollow structure 11 can maintain circumferential synchronous rotation, the frictional force between the first stop 3 and the second stop 4 locks the rotation of the connecting arm 2 and the first arm 1. It should be noted that since the actuator 21 is connected to the driving member 12, under the action of the driving member 12, the actuator 21 causes the second stop 10 to engage with the first stop 7 to lock the rotation between the first base 6 and the second base 9.

[0063] The second base 9 has a second stop portion 10 extending into the first base 6. The second stop portion 10 is a cylindrical structure. A connecting arm 26 extending into the cylindrical structure is provided inside the first base 6. A lever 27 is rotatably connected to the connecting arm 26. A second elastic element 20 is provided at one end of the lever 27 near the second base 9. One end of the second elastic element 20 is connected to the lever 27, and the other end of the second elastic element 20 is connected to the connecting arm 26. A first mounting hole 271 is provided at one end of the lever 27 with the second elastic element 20. A second mounting hole 28 and a third mounting hole are provided on the connecting arm 26 at both ends of the cylindrical structure. The third mounting hole is located below the first mounting hole 271. The driving component 12 includes a control rope. The control rope passes through the third mounting hole, the first mounting hole 271, the third mounting hole, and the second mounting hole 28 in sequence and is connected to the second stop portion 4. It should be noted that a telescopic guide sleeve 29 is connected between the connecting arm 26 and the lever 27, and the second elastic element 20 is sleeved on the telescopic guide sleeve 29.

[0064] The actuator 21 includes a first scissor arm 211 and a second scissor arm 212 that are hinged to each other. The bottom of the first scissor arm 211 is connected to the first stop 3. The bottom of the second scissor arm 212 is connected to the other end of the lever 27 via a connecting rope 30. The top of the second scissor arm 212 is connected to a first stop 7 located below the second stop 10. The first stop 7 has an arc-shaped structure. When the control rope is tightened, the first stop 7 moves toward the second stop 10 and engages with the second stop 10.

[0065] In this embodiment, when the control rope is tightened, the lever 27 moves downward near the second base 9 under the action of the tension, and the other end of the lever 27 moves upward and tightens the connecting rope 30. Since one end of the connecting rope 30 is connected to the bottom of the second scissor arm 212, under the action of the connecting rope 30, the bottom of the second scissor arm 212 moves away from the bottom of the first scissor arm 211. The top of the second scissor arm 212 pushes the first stop 7 connected to it to insert into the outer peripheral surface of the second stop 10 and makes the first stop 7 contact the second stop 10. Relying on the friction between the first stop 7 and the second stop 10, the first stop 7 and the second stop 10 are locked. It should be noted that when the lever 27 moves downward near the end of the second base 9, the second elastic element 20 is compressed. When the force applied to the lever 27 disappears, the second elastic element 20 restores its deformation. The lever 27 drives the first stop 7 to move away from the second stop 10 through the second scissor arm 212 so that the first stop 7 is disengaged from the second stop 10.

[0066] Example 6 like Figure 5 , Figure 6 As shown, the difference from Embodiment 6 is that both the first stop 3 and the second stop 4 have a funnel structure with an opening facing the second arm 8. The funnel structure of the first stop 3 is located in the second stop 4. A connecting part 5 is provided at the bottom of the second stop 4. The driving member 12 is connected to the second stop 4 to drive the second stop 4 toward the first stop 3 and make the second stop 4 engage with the first stop 3. An actuator 21 is connected to the first stop 3. The actuator 21 is connected to the driving member 12 so that the second stop part 10 engages with the first stop part 7.

[0067] In this embodiment, the driving member 12 drives the second stop 4 to move closer to the first stop 3, so that the inner wall surface of the funnel structure of the second stop 4 contacts the inner wall surface of the hole structure of the first stop 3. Since the connecting part 5 and the inner wall surface of the hollow structure 11 can maintain circumferential synchronous rotation, the frictional force between the first stop 3 and the second stop 4 locks the rotation of the connecting arm 2 and the first arm 1. It should be noted that since the actuator 21 is connected to the driving member 12, under the action of the driving member 12, the actuator 21 causes the second stop 10 to engage with the first stop 7 to lock the rotation between the first base 6 and the second base 9.

[0068] The first stop 7 and the second stop 10 are respectively formed on the circumferential surfaces of the first base 6 and the second base 9; the actuator 21 includes a first scissor arm 211 and a second scissor arm 212 hinged to each other. The bottom of the first scissor arm 211 is connected to the first stop 3. The bottom of the second scissor arm 212 is provided with a guide post 213 connected to it at one end. The other end of the guide post 213 is slidably connected to the top of the first scissor arm 211. A brake block 23 is connected to the top of the second scissor arm 212. Located on one side of the first stop 7 and the second stop 10; a second elastic member 20 is connected between the bottom of the first scissor arm 211 and the top of the second scissor arm 212 or between the bottom of the second scissor arm 212 and the top of the first scissor arm 211; a connecting rod 214 is slidably connected to the guide post 213, and the driving member 12 is connected to the connecting rod 214 to drive the top of the first scissor arm 211 to move away from the bottom of the second scissor arm 212 so that the brake block 23 fits against the first stop 7 and the second stop 10.

[0069] In this embodiment, the drive member 12 pulls the connecting rod, and the connecting rod 214 slides on the guide post 213 and pushes the top of the first scissor arm 211 upward toward the top of the second scissor arm 212. During the movement of the second scissor arm 212, the second scissor arm 212 drives the brake block 23 to adhere to the first stop part 7 and the second stop part 10. Relying on the friction between the stop block 19 and the first stop part 7 and the second stop part 10, the first stop part 7 and the second stop part 10 are locked, thereby locking the first base 6 and the second base 9. It should be noted that during the movement of the top of the first scissor arm 211 away from the bottom of the second scissor arm 212, the second elastic member 20 between the bottom of the first scissor arm 211 and the top of the second scissor arm 212 is stretched. When the force of the driving member 12 applied to the connecting rod 214 disappears, the second elastic member 20 will restore its deformation and drive the top of the second scissor arm 212 to move closer to the bottom of the first scissor arm 211, so that the brake block 23 disengages from the first stop part 7 and the second stop part 10, thereby realizing the disengagement between the first stop part 7 and the second stop part 10.

[0070] It should be noted that in the above embodiments 1 to 6, the driving member 12 may include a control rope. The control rope is located inside the first arm body 1 and the second arm body 8. When the control rope is tightened, the control rope drives the second stop 4 to engage with the first stop 3, and drives the second stop part 10 to engage with the first stop part 7.

[0071] Example 7 like Figure 13 , Figure 14 as well as Figure 17 , Figure 18As shown, unlike Embodiment 2, the first stop 3 and the second stop 4 have interlocking toothed structures or contacting friction surfaces on their opposite sides. The driving member 12 drives the second stop 4 to move away from the first stop 3, so that the friction surface structure or toothed structure of the second stop 4 disengages from the friction surface structure or toothed structure of the first stop 3. In this embodiment, the first stop 3 and the second stop 4 are in an engaged or contacting state without the driving member 12 applying any force to them. Because the first stop 3 and the second stop 4 are in an engaged or contacting state, rotating the connecting arm 2 prevents it from rotating around the axial direction of the first arm 1, thereby achieving the purpose of locking the connecting arm 2 and the first arm 1. When the driving member 12 applies force to the second stop 4 or the first stop 3, the first stop 3 disengages from the second stop 4, thereby releasing the locking state between the connecting arm 2 and the first arm 1. Under this unlocked state, the connecting arm 2 can rotate around the axis of the first arm 1.

[0072] The second stop 4 has a connecting portion 5 on its outer peripheral surface. The connecting portion 5 is connected to the inner wall surface of the hollow structure 11 so that the connecting portion 5 can slide along the axis of the first arm 1 and rotate synchronously with the first arm 1. In this embodiment, since the connecting portion 5 of the second stop 4 is connected to the inner wall surface of the hollow structure 11 and can slide along the axial direction of the first arm 1 and rotate synchronously with the first arm 1, and since the second stop 4 cannot rotate relative to the first arm 1 in the circumferential direction, but can only rotate synchronously with the first arm 1 in the circumferential direction, when the first stop 3 and the second stop 4 are engaged together, the relative rotation between the connecting arm 2 and the first arm 1 can be locked.

[0073] Additionally, a fixing plate 32 is installed on the inner wall of the hollow structure 11. The fixing plate 32 is located below the second stop 4. A first elastic member 13 is provided between the fixing plate 32 and the second stop 4. The first elastic member 13 causes the second stop 4 to reset and engage with the first stop 3. In this embodiment, since the first elastic member 13 is provided between the fixing plate 32 and the second stop 4, when the driving member 12 does not apply force to the first stop 3 or the second stop 4, the first elastic member 13 can drive the first stop 3 and the second stop 4 to reset and engage. It should be noted that "reset engagement" means that when the driving member 12 does not apply force to the first stop 3 or the second stop 4, the first stop 3 and the second stop 4 are in a reset and engaged state.

[0074] The first base 6 is provided with mounting holes, and the second base 9 is provided with mounting posts 24, which pass through the mounting holes.

[0075] Furthermore, the first stop 7 is located on the side of the first base 6 away from the second base 9, and the second stop 10 is sleeved on the mounting post 24 and is positioned opposite to the first stop 7. The driving member 12 is connected to the second stop 10 to drive the second stop 10 to disengage from the first stop 7. In this embodiment, without applying force to the first stop 7 and the second stop 10, the first stop 7 and the second stop 10 are in a meshing or contacting state. Because the first stop 7 and the second stop 10 are in a meshing or contacting state, rotating the second base 9 will prevent the second base 9 from rotating around the rotation axis pivotally connected to the first base 6, thereby achieving the purpose of locking the angle between the second arm 8 and the first arm 1. When the driving member 12 applies force to the second stop 10 or the first stop 7, the first stop 7 disengages from the second stop 10, thereby releasing the locking state between the first base 6 and the second base 9. In this unlocked state, the relative angle between the first base 6 and the second base 9 can be adjusted.

[0076] The first stop portion 7 and the second stop portion 10 are also provided with interlocking toothed structures or contacting friction surfaces on their opposite sides. In this embodiment, locking between the first stop portion 7 and the second stop portion 10 can be achieved by relying on the interlocking toothed structures or contacting friction surfaces between them.

[0077] In addition, a fixing plate 31 is provided on the connecting arm 2. A second elastic member 20 is provided between the fixing plate 31 and the second stop part 10 for resetting engagement between the second stop part 10 and the first stop part 7. The driving member 12 drives the second stop part 10 to move away from the first stop part 7 so that the friction surface structure or toothed structure of the second stop part 10 disengages from the friction surface structure or toothed structure of the first stop part 7. In this embodiment, since the second elastic member 20 is provided between the fixing plate 31 and the second stop part 10, even when the driving member 12 does not apply force to the first stop part 7 or the second stop part 10, the second elastic member 20 can drive the first stop part 7 to engage with the second stop part 10 under the action of the second elastic member 20. It should be noted that "reset engagement" means that when the driving member 12 does not apply force to the first stop 7 or the second stop 10, the second elastic member 20 can drive the second stop 10 to move towards the first stop 7 so that the second stop 10 engages with the first stop 7.

[0078] It should be noted that the first stop 3 and the second stop 4 are respectively provided with a first engaging portion 14 and a second engaging portion 15 on their opposite sides. The driving member 12 drives the second stop 4 to move away from the first stop 3, so that the second engaging portion 15 of the second stop 4 separates from the first engaging portion 14 of the first stop 3. The first engaging portion 14 and the second engaging portion 15 are both intermeshing tooth-like structures or contacting friction surface structures. The first stop 7 and the second stop 10 are respectively provided with a third engaging portion 16 and a fourth engaging portion 17 on their opposite sides. The driving member 12 drives the second stop 10 to move away from the first stop 7, so that the third engaging portion 16 and the fourth engaging portion 17 separate. The third engaging portion 16 and the fourth engaging portion 17 are both intermeshing tooth-like structures or contacting friction surface structures.

[0079] Example 8 like Figure 19 , Figure 20 As shown, the difference from Embodiment 8 is that the first base 6 is provided with a mounting hole, and the second base 9 is provided with a mounting post 24, which passes through the mounting hole; the second stop 10 is formed on the circumferential surface of the mounting post 24, and the second stop 10 is a toothed structure or a friction surface structure; the first stop 7 is located inside the connecting arm 2, and the first stop 7 has a toothed structure or a friction surface structure that meshes with the second stop 10; a second elastic member 20 for resetting the first stop 7 and the second stop 10 into a compressed state is provided between the bottom of the first stop 7 and the inner bottom of the connecting arm 2; and the driving member 12 is connected to the first stop 7 to drive the first stop 7 to disengage from the second stop 10.

[0080] In this embodiment, the driving member 12 drives the first stop 7 to move away from the second stop 10, so that the first stop 7 disengages from the second stop 10. During the disengagement of the first stop 7 from the second stop 10, the second elastic member 20 is compressed. When the force applied to the first stop 7 by the driving member 12 disappears, the second elastic member 20 restores its deformation and pushes the first stop 7 to engage with the second stop 10, locking the first base 6 and the second base 9. It should be noted that "reset engagement" means that after the driving member 12 no longer applies force to the first stop 7, the first stop 7 will engage with the second stop 10 under the action of the second elastic member 20.

[0081] Example 9 like Figure 15 , Figure 16As shown, the difference from Embodiment 1 is that both the first stop 3 and the second stop 4 have a funnel structure with an opening facing the second arm 8. The funnel structure of the first stop 3 is located in the second stop 4. A connecting part 5 is provided at the bottom of the second stop 4. The driving member 12 is connected to the second stop 4 to drive the second stop 4 away from the first stop 3 and to disengage the second stop 4 from the first stop 3. An actuator 21 is connected to the first stop 3. The actuator 21 is connected to the driving member 12 to disengage the second stop part 10 from the first stop part 7.

[0082] In this embodiment, the driving member 12 drives the second stop 4 to move away from the first stop 3, causing the inner wall surface of the funnel structure of the second stop 4 to disengage from the inner wall surface of the hole structure of the first stop 3. Since the connecting part 5 and the inner wall surface of the hollow structure 11 can maintain circumferential synchronous rotation, the frictional force between the first stop 3 and the second stop 4 is released, thereby unlocking the lock between the connecting arm 2 and the first arm 1. It should be noted that since the actuator 21 is connected to the driving member 12, under the action of the driving member 12, the actuator 21 causes the second stop 10 to disengage from the first stop 7, thereby unlocking the lock between the first base 6 and the second base 9.

[0083] The first stop 7 and the second stop 10 are respectively formed on the circumferential surfaces of the first base 6 and the second base 9; the actuator 21 includes a first scissor arm 211, a second scissor arm 212, and a control lever 215 that are hinged to each other. The bottom of the first scissor arm 211 is connected to the first stop 3, and the bottom of the first scissor arm 211 is connected to the top of the second scissor arm 212 by a second elastic member 20. The top of the second scissor arm 212 is connected to a brake block 23, which is located at the first stop 7. One side of the second stop 10; the first stop 3 is connected to a connecting rope 30, one end of the connecting rope 30 is connected to the first stop 3, and the other end of the connecting rope 30 passes through the first through hole on the control rod 215 and is connected to the stop block 19; the control rope is connected to the second stop 4 and passes through the center hole of the first base 6 and the second base 9 and is connected to the other end of the control rod 215 to drive the stop block 19 away from the first stop 7 and the second stop 10, and to make the second stop 4 disengage from the first stop 3.

[0084] In this embodiment, the drive member 12 pulls the control rod 215, and the control rod 215 pulls the stop block 19 away from the first stop part 7 and the second stop part 10 through the connecting rope 30. At the same time, the first stop part 3 and the second stop part 4 are disengaged. When the stop block 19 moves away from the first stop part 7 and the second stop part 10, the second elastic member 20 connected between the first scissor arm 211 and the second scissor arm 212 is stretched. When the force of the drive member 12 applied to the control rod 215 disappears, the second elastic member 20 restores its deformation. The second elastic member 20 drives the top of the second scissor arm 212 to move away from the bottom of the first scissor arm 211, so that the stop block 19 engages with the first stop part 7 and the second stop part 10, thereby achieving the locking between the first stop part 7 and the second stop part 10.

[0085] Example 10 like Figures 25 to 26As shown, the difference between this embodiment 10 and embodiment 9 is that a hollow mounting post 24 is provided on the first base 6, and a mounting hole is provided on the second base 9, with the mounting post 24 passing through the mounting hole; the circumferential surface of the second base 9 has a second stop part 10 with a toothed structure or a friction surface structure, and the first stop part 7 has a toothed structure or a friction surface structure adapted to the second stop part 10. A fixing block 25 is installed inside the first arm body 1, and the first stop member 3 extends upward and slides through the fixing block 25 to form a fixing post 33. The first stop part 7 is slidably connected to the inner wall surface of the connecting arm body 2. The driving member is connected to the fixing post 33 and the first stop part 7 respectively. An actuator is connected between the fixing post 33 and the first stop part 7 so that the fixing post 33 and the first stop part 7 move towards each other under the action of the driving member to realize the separation of the first stop part 7 from the second stop part 10 and the separation of the first stop member 3 from the second stop member 4. The actuator includes a first annular slider 35 and a second annular slider 36 that slide circumferentially on the inner wall of the connecting arm 2. The first annular slider 35 and the second annular slider 36 are respectively provided with a first guide groove 37 and a second guide groove 38 at an incline. A mounting plate 34 is provided inside the connecting arm 2, located between the first annular slider 35 and the second annular slider 36. A column 40 is mounted on the mounting plate 34, with both ends of the column 40 extending into the first annular slider 35 and the second annular slider 36, respectively. Vertical plates 42 with through holes 41 are connected to both sides of the mounting plate 34. The inner walls of the first annular slider 35 and the second annular slider 36 are respectively provided with a first connecting hole 43 and a second connecting hole 44 corresponding to the positions of the through holes 41. The two ends of the column 40 are respectively... A torsion spring 45 is fitted on the wall. One end of the torsion spring 45 is connected to the vertical plate 42, and the other end of the torsion spring 45 is connected to the inner wall of the corresponding first annular slider 35 or second annular slider 36. A first sliding rod 46 is provided on the fixed column 33, and the end of the first sliding rod 46 extends into the second guide groove 38. A second sliding rod 47 is provided at the bottom of the first stop part 7, and the end of the second sliding rod 47 extends into the first guide groove 37. The driving component 12 includes a control rope. One end of the control rope is located inside the first arm body 1, and the other end of the control rope passes through the second stop part 4, the first stop part 3, the through hole 41, the second connecting hole 44, the first connecting hole 43, the through hole 41, and passes through the first stop part 7 before winding around the crossbar located in the hollow structure or passing through the mounting column 24 before extending into the second arm body 8. When the control rope is pulled, the control rope drives the first annular slider 35 and the second annular slider 36 to rotate, and drives the first sliding rod 46 to move along the first guide groove 37 and the second sliding rod 47 to move along the second guide groove 38, so that the first stop part 7 disengages from the second stop part 10 and the first stop member 3 disengages from the second stop member 4.

[0086] It should be noted that the torsion spring 45 at the end of the column near the first stop 7 is the first torsion spring 45, and the torsion spring 45 at the other end of the column away from the first stop 7 is the second torsion spring 45. One end of the first torsion spring 45 is connected to the end of the upright plate 42 near the first stop 7, and the other end of the first torsion spring 45 is connected to the inner wall surface of the first annular slider 35; one end of the second torsion spring 45 is connected to the end of the upright plate 42 away from the first stop 7, and the other end of the second torsion spring 45 is connected to the inner wall surface of the second annular slider 36; the first connecting hole 43 is close to the upright plate 42. The second connecting hole 44 corresponds to the through hole 41 on the first stop 7, and the second connecting hole 44 corresponds to the through hole 41 on the upright plate 42 away from the first stop 7. When the control rope is sequentially inserted into the through hole 41 on the upright plate 42 away from the first stop 7, the second connecting hole 44, the third connecting hole, and the through hole 41 on the upright plate 42 near the first stop 7, the control rope can apply a near-tangential force to the first annular slider 35 and the second annular slider 36 when the control rope is tightened, thereby causing the first annular slider 35 and the second annular slider 36 to rotate. The control rope is connected to the first stop 3 or the fixed post 33.

[0087] It should also be noted that the first guide groove 37 has a first stop position and a second stop position horizontally arranged at both ends, and the second guide groove 38 has a third stop position and a fourth stop position horizontally arranged at both ends. When the first sliding rod 46 is in the first stop position, the first stop part 7 and the second stop part 10 are engaged. When the second sliding rod 47 is in the third stop position, the first stop member 3 and the second stop member 4 are engaged. When a force is applied to the control rope, the control rope drives the first annular slider 35 and the second annular slider 36 to rotate. During the rotation of the first annular slider 35, the first sliding rod 46 moves from the first stop position along the first guide groove 37 to the second stop position, and the first stop part 7 disengages from the second stop part 10. During the rotation of the second annular slider 36, the second sliding rod 47 moves from the third stop position along the second guide groove 38 to the fourth stop position, and the first stop member 3 disengages from the second stop member 4. During the rotation of the first annular slider 35 and the second annular slider 36, the first torsion spring 45 and the second torsion spring 45 undergo torsional deformation and store energy. When the force applied to the control disappears, the first torsion spring 45 and the second torsion spring 45, in order to restore their deformation, will drive the first annular slider 35 and the second annular slider 36 to rotate, causing the first sliding rod 46 to return to the first stop position along the first guide groove 37, and simultaneously causing the second sliding rod 47 to return to the third stop position along the second guide groove 38, and simultaneously causing the first stop part 7 to engage with the second stop part 10, and the first stop member 3 to engage with the second stop member 4. In this embodiment, the fixed post 33 is a hollow structure, which facilitates the threading of the control rope. The fixed post 33 can slide along the fixed plate 32, but the fixed post 33 cannot rotate relative to the fixed plate 32. The connecting part 5 is formed on the outer periphery of the fixed post 33 that is slidably connected to the fixed plate 32.

[0088] In this embodiment 16, the first arm 1 and the second arm 8 are parallel to each other, and the axes of the first arm 1 and the second arm 8 can be collinear. The first arm 1 and the second arm 8 can rotate through the pivot connection between the mounting post 24 and the mounting hole.

[0089] like Figure 27 , Figure 28 As shown, in another embodiment of this invention, the difference lies in that a hollow mounting post 24 is provided on the second base 9, and a second stop 10 is provided on the circumferential surface of the mounting post 24. The first base 6 has mounting holes, and rotation is achieved through a pivotal connection between the mounting posts 24 and 24. When the first arm 1 and the second arm 8 are parallel to each other, their axes can only be parallel and not collinear. Although there are slight differences in the connection method between the first arm 1 and the second arm 8, the second stop 10 is always provided on the circumferential surface of the second base 9.

[0090] Example 11 The difference from Embodiment 10 lies in the specific structure of the actuator. For example... Figure 29 As shown, a hollow mounting post 24 is provided on the first base 6, and a mounting hole is provided on the second base 9, through which the mounting post 24 passes. The circumferential surface of the second base 9 has a second stop 10 with a toothed structure or a friction surface structure. The first stop 7 has a toothed structure or a friction surface structure adapted to the second stop 10. A fixing block 25 is installed inside the first arm body 1. The first stop 3 extends upward and slides through the fixing block 25 to form a fixing post 33. The first stop 7 is slidably connected to the inner wall surface of the connecting arm body 2. The driving member is connected to the fixing post 33 and the first stop 7 respectively. An actuator is connected between the fixing post 33 and the first stop 7 so that the fixing post 33 and the first stop 7 move towards each other under the action of the driving member to disengage the first stop 7 from the second stop 10 and to disengage the first stop 3 from the second stop 4.

[0091] The actuator includes a first elastic member 13 connected between the first stop 7 and the fixed post 33, a first hook-shaped structure 48 disposed at the bottom of the first stop 7, and a second hook-shaped structure 49 disposed at the top of the fixed post 33. The inner wall surface of the connecting arm 2 is provided with a first connecting hole structure 50 and a second connecting hole structure 51 in sequence along the axial direction of the connecting arm 2. The drive member 12 includes a control rope. One end of the control rope is located inside the first arm 1. The other end of the control rope passes through the second stop 4, the first stop 3, the first connecting hole structure 50, is connected to the second hook-shaped structure 49, is connected to the first hook-shaped structure 48, passes through the second connecting hole structure 51, and then winds around the crossbar located in the hollow structure or passes through the mounting post 24 before extending into the second arm 8. When the control rope is pulled, the control rope causes the first hook structure 48 and the second hook structure 49 to move toward each other, causing the first stop part 7 to disengage from the second stop part 10 and the first stop member 3 to disengage from the second stop member 4.

[0092] In this embodiment, one end of the control rope located inside the first arm 1 is fixed. Pulling the control rope located inside the second arm 9 causes the control rope to be under tension. Through the action of the first connecting hole structure 50 and the second connecting hole structure 51, the first hook-shaped structure 47 is subjected to a force moving towards the first stop 3, and the second hook-shaped structure 49 is subjected to a force moving towards the first stop portion. This causes the first stop portion 7 and the first stop 3 to move towards each other, so that the first stop portion 7 disengages from the second stop portion 10 and the first stop 3 disengages from the second stop 4. During the process of the first stop portion 7 and the first stop 3 moving towards each other, the first elastic element 13 is compressed. When the force acting on the control rope disappears, the first elastic element 13, in order to restore its deformation, will drive the first stop portion 7 and the second stop portion 10 to move away from each other, thus also causing the first stop portion 7 and the second stop portion 10 to engage and the first stop 3 and the second stop 4 to engage. In this embodiment, the first elastic element 13 can be a spring.

[0093] It should be noted that in the above embodiments 8 to 11, the driving member 12 may include a control rope. The control rope is located inside the first arm body 1 and the second arm body 8. When the control rope is tightened, the control rope drives the second stop 4 to disengage from the first stop 3 and drives the second stop part 10 to disengage from the first stop part 7.

[0094] Example 12 like Figures 21 to 24 As shown, the difference from the above embodiment is that the driving member 12 has a first actuating end and a second actuating end, and the first stop part 7 and the second stop part 10 are respectively formed on the circumferential surface of the first base 6 and the second base 9; Both the first stop 3 and the second stop 4 have a funnel structure with an opening facing the second arm 8. The funnel structure of the first stop 3 is located in the second stop 4. The bottom of the second stop 4 is provided with a connecting part 5. The first actuating end of the driving member 12 is connected to the first stop 3. The second actuating end of the driving member 12 is connected to a brake block 23. The driving member 12 drives the brake block 23 to disengage from the first stop 7 and the second stop 10 or drives the brake block 23 to engage with the first stop 7 and the second stop 10. It also drives the first stop 3 to disengage from the second stop 4 or engage with the second stop 4. It should be noted that, since the driving member 12 has a first actuating end and a second actuating end, the first actuating end of the driving member 12 is connected to the first stop 3, and the second actuating end of the driving member 12 is connected to the brake block 23, through the action of the first actuating end and the second actuating end, the driving member drives the brake block 23 to disengage from the first stop 7 and the second stop 10 or drives the brake block 23 to engage with the first stop 7 and the second stop 10; and drives the first stop 3 to disengage from the second stop 4 or engage with the second stop 4.

[0095] like Figures 21 to 24 As shown, the driving member 12 has a first actuating end and a second actuating end. The first base 6 is provided with a mounting hole, and the second base 9 is provided with a mounting post 24. The mounting post 24 passes through the mounting hole and has a cylindrical structure inside the connecting arm 2. The second stop part 10 is located on the outer circumferential surface of the cylindrical structure. Both the first stop part 3 and the second stop part 4 have a funnel structure with an opening facing the second arm 8. The funnel structure of the first stop part 3 is located in the second stop part 4. The bottom of the second stop part 4 is provided with a connecting part 5. The first actuating end of the driving member 12 is connected to the first stop part 3, and the second actuating end of the driving member 12 is connected to the first stop part 7. The first stop part 7 has an arc-shaped structure and is located below the second stop part 10. The driving member 12 drives the first stop part 7 to disengage or engage with the second stop part 10; and drives the first stop part 3 to disengage or engage with the second stop part 4.

[0096] It should be noted that, since the driving member 12 has a first actuating end and a second actuating end, the first actuating end of the driving member 12 is connected to the first stop 3, and the second actuating end of the driving member 12 is connected to the brake block 23, through the action of the first actuating end and the second actuating end, the driving member 12 drives the first stop 7 to disengage from or engage with the second stop 10; and drives the first stop 3 to disengage from or engage with the second stop 4.

[0097] It should also be noted that in the above embodiments 1 to 12, the first arm 1 and the second arm 8 are connected by the first base 6 connecting the arm 2 and the second base 9 connecting the second arm 8. The first base 6 and the second base 9 are pivotally connected and rotate. There are two forms of pivot connection between the first base 6 and the second base 9. The pivot axis of the first base 6 and the second base 9 is perpendicular to the plane where the central axis of the first arm 1 and the second arm 8 is located. The other form is that the pivot axis of the first base 6 and the second base 9 is coplanar with the central axis of the first arm 1 and the second arm 8.

[0098] Example 13 A shooting stand, characterized in that it includes a shoulder-back type main body, a mounting base for mounting shooting equipment, and a support arm structure as described in any of the above embodiments. The end of a first arm 1 away from a second arm 8 is connected to the shoulder-back type main body, and the end of the second arm 8 away from the first arm 1 is connected to the mounting base. It should be noted that the shoulder-back type main body includes a main body and a shoulder strap. The main body roughly conforms to the contour of the user's back, the shoulder strap is used to wear the main body on the back, and the support arm structure is connected to the main body.

[0099] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0100] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An angle-adjustable support arm structure, characterized in that, include: A first arm body (1) has a hollow structure (11) inside. One end of the first arm body (1) is rotatably connected to a connecting arm body (2) around the axis of the first arm body (1). The connecting arm body (2) located in the hollow structure (11) has a first stop (3). The second stop (4) is disposed in the hollow structure (11). The second stop (4) or the first stop (3) has a connecting part (5) connected to the inner wall surface of the hollow structure (11). The connecting part (5) enables the second stop (4) to rotate synchronously with the first arm (1) or enables the first stop (3) to rotate synchronously with the connecting arm (2). A first base (6) is connected to one end of the connecting arm (2) away from the first stop (3), and a first stop (7) is provided on the first base (6); The second arm (8) has a second base (9) at one end, which is rotatably connected to the first base (6). The second base (9) has a second stop (10) corresponding to the position of the first stop (7). A driving member (12) is connected to the second stop (4) to drive the second stop (4) to engage or disengage from the first stop (3); the driving member (12) is also connected to the second stop (10) or the first stop (7) to drive the second stop (10) to engage or disengage from the first stop (7).

2. The angle-adjustable support arm structure according to claim 1, characterized in that, The drive member (12) includes a control rope located inside the first arm body (1) and the second arm body (8). When the control rope is tightened, the control rope drives the second stop (4) to engage or disengage from the first stop (3), and drives the second stop (10) to engage or disengage from the first stop (7).

3. The angle-adjustable support arm structure according to claim 2, characterized in that, The first stop (3) and the second stop (4) are respectively provided with a first engagement portion (14) and a second engagement portion (15) on opposite sides. The driving member (12) drives the second stop (4) to move toward / away from the first stop (3) so that the second engagement portion (15) engages or disengages from the first engagement portion (14).

4. The angle-adjustable support arm structure according to claim 3, characterized in that, The outer peripheral surface of the second stop (4) has the connecting part (5), which is connected to the inner wall surface of the hollow structure (11) so that the connecting part (5) can slide along the axis of the first arm (1) and rotate synchronously with the first arm (1).

5. The angle-adjustable support arm structure according to claim 4, characterized in that, A first elastic member (13) is provided between the first stop (3) and the second stop (4) for resetting and separating the first stop (3) and the second stop (4). One end of the first elastic member (13) is connected to the first stop (3), and the other end of the first elastic member (13) is connected to the second stop (4).

6. The angle-adjustable support arm structure according to claim 4, characterized in that, The inner wall of the hollow structure (11) is fitted with a fixing plate (32), which is located below the second stop (4). A first elastic member (13) is provided between the fixing plate (32) and the second stop (4), which enables the second stop (4) to reposition and engage with the first stop (3).

7. The angle-adjustable support arm structure according to claim 3, characterized in that, Both the first joint (14) and the second joint (15) are interlocking tooth-like structures or contacting friction surfaces.

8. The angle-adjustable support arm structure according to claim 2, characterized in that, The first stop (3) includes a sleeve with an opening facing the second stop (4). The outer wall surface of the sleeve has a notch along the axial direction of the sleeve. The connecting part (5) is fitted on the outer peripheral surface of the sleeve. The second stop (4) has a tapered part that gradually decreases in size from the second stop (4) toward the first stop (3). The driving member (12) drives the tapered part to extend into the opening so that the connecting part (5) contacts the inner wall surface of the hollow structure (11).

9. The angle-adjustable support arm structure according to any one of claims 1 to 8, characterized in that, The first base (6) is provided with a mounting hole, and the second base (9) is provided with a mounting post (24), which passes through the mounting hole.

10. The angle-adjustable support arm structure according to claim 9, characterized in that, The first stop (7) is provided on the side of the first base (6) away from the second base (9). The second stop (10) is sleeved on the mounting post (24) and is disposed opposite to the first stop (7). The driving member (12) is connected to the second stop (10) to drive the second stop (10) to engage or disengage from the first stop (7).

11. The angle-adjustable support arm structure according to claim 10, characterized in that, The first stop (7) and the second stop (10) are respectively provided with a third joint (16) and a fourth joint (17) on opposite sides. The driving member (12) drives the second stop (10) to move toward / away from the first stop (7) so that the third joint (16) and the fourth joint (17) can engage or disengage.

12. The angle-adjustable support arm structure according to claim 11, characterized in that, The third joint (16) and the fourth joint (17) are interlocking tooth-like structures or friction surfaces that rub against each other.

13. The angle-adjustable support arm structure according to claim 12, characterized in that, A second elastic member (20) is provided between the first stop (7) and the second stop (10) for resetting and separating the first stop (7) and the second stop (10). One end of the second elastic member (20) is connected to the first stop (7), and the other end of the second elastic member (20) is connected to the second stop (10). The driving member (12) drives the second stop (10) to move toward the first stop (7) so that the friction surface structure or tooth structure of the second stop (10) engages with the friction surface structure or tooth structure of the first stop (7).

14. The angle-adjustable support arm structure according to claim 13, characterized in that, The connecting arm (2) is also provided with a fixing plate (31). A second elastic member (20) is provided between the fixing plate (31) and the second stop (10) for resetting engagement between the second stop (10) and the first stop (7). The driving member (12) drives the second stop (10) to move away from the first stop (7) so that the friction surface structure or tooth structure of the second stop (10) disengages from the friction surface structure or tooth structure of the first stop (7).

15. The angle-adjustable support arm structure according to claim 12, characterized in that, The first stop (7) is located on the inner wall of the mounting hole. Two stop blocks (19) are provided in the mounting hole. The second stop (10) is provided on the circumferential surface of the inner wall of the stop block (19) facing the mounting hole. Slide grooves are provided on the opposite sides of the two stop blocks (19). The two stop blocks (19) are respectively locked on both sides of the mounting post (24) through the slide grooves. There is a gap between the two stop blocks (19). A second elastic element (20) is provided in the gap. The two ends of the second elastic element (20) are respectively connected to one of the stop blocks (19). An actuator (21) is also inserted in the gap. The driving element (12) is connected to the actuator (21). The driving element (12) drives the actuator (21) to be inserted into the gap so that the second stop (10) engages with the first stop (7).

16. The angle-adjustable support arm structure according to claim 9, characterized in that, The mounting post (24) is a hollow structure. A through groove communicating with the hollow structure is provided on the circumferential surface of the mounting post (24) along its axial direction. The second stop (10) is provided on the circumferential surface of the mounting post (24). The hollow structure is provided with the first stop (7) that causes the mounting post (24) to expand. The driving member (12) is connected to the first stop (7) to drive the first stop (7) to extend into the hollow structure so that the second stop (10) contacts the inner circumferential wall of the mounting hole.

17. The angle-adjustable support arm structure according to any one of claims 1 to 8, characterized in that, The first base (6) is provided with a mounting hole, and the second base (9) is provided with a mounting post (24), which passes through the mounting hole; the second stop (10) is formed on the circumferential surface of the mounting post (24), and the second stop (10) is a toothed structure or a friction surface structure; the first stop (7) is located inside the connecting arm (2), and the first stop (7) has a toothed structure or a friction surface structure that meshes with the second stop (10); a second elastic member (20) in a compressed state is provided between the bottom of the first stop (7) and the inner bottom of the connecting arm (2) for resetting engagement between the first stop (7) and the second stop (10); the driving member (12) is connected to the first stop (7) to drive the first stop (7) to disengage from the second stop (10).

18. The angle-adjustable support arm structure according to claim 2, characterized in that, Both the first stop (3) and the second stop (4) have a funnel structure with an opening facing the second arm (8). The funnel structure of the first stop (3) is located in the second stop (4). The bottom of the second stop (4) is provided with the connecting part (5). The driving member (12) is connected to the second stop (4) to drive the second stop (4) to move closer to or away from the first stop (3) and to engage or disengage the second stop (4) from the first stop (3). An actuating member (21) is connected to the first stop (3). The actuating member (21) is connected to the driving member (12) to engage or disengage the second stop part (10) from the first stop part (7).

19. The angle-adjustable support arm structure according to claim 18, characterized in that, The second base (9) has a second stop (10) extending into the first base (6). The second stop (10) is a cylindrical structure. A connecting arm (26) extending into the cylindrical structure is provided inside the first base (6). A lever (27) is rotatably connected to the connecting arm (26). A second elastic element (20) is provided at one end of the lever (27) near the second base (9). One end of the second elastic element (20) is connected to the lever (27). The other end is connected to the connecting arm (26). The lever (27) is provided with a first mounting hole (271) at one end of the second elastic element (20). The connecting arm (26) is provided with a second mounting hole (28) and a third mounting hole at both ends of the cylindrical structure. The third mounting hole is located below the first mounting hole (271). The control rope passes through the third mounting hole, the first mounting hole (271), the third mounting hole and the second mounting hole (28) in sequence and is connected to the second stop (4). The actuator (21) includes a first scissor arm (211) and a second scissor arm (212) hinged to each other. The bottom of the first scissor arm (211) is connected to the first stop (3). The bottom of the second scissor arm (212) is connected to the other end of the lever (27) via a connecting rope (30). The top of the second scissor arm (212) is connected to the first stop (7) located below the second stop (10). The first stop (7) has an arc-shaped structure. When the control rope is tightened, the first stop (7) moves toward the second stop (10) and engages with the second stop (10).

20. The angle-adjustable support arm structure according to claim 18, characterized in that, The first stop (7) and the second stop (10) are respectively formed on the circumferential surfaces of the first base (6) and the second base (9); the actuator (21) includes a first scissor arm (211) and a second scissor arm (212) hinged to each other. The bottom of the first scissor arm (211) is connected to the first stop (3), and the bottom of the second scissor arm (212) is provided with a guide post (213) connected to it at one end. The other end of the guide post (213) is slidably connected to the top of the first scissor arm (211). The top of the second scissor arm (212) is connected to a brake block (23), and the brake block (23) is located at the... The first stop (7) and the second stop (10) are located on one side; a second elastic element (20) is connected between the bottom of the first scissor arm (211) and the top of the second scissor arm (212) or between the bottom of the second scissor arm (212) and the top of the first scissor arm (211); a connecting rod (214) is slidably connected to the guide post (213), and the driving member (12) is connected to the connecting rod (214) to drive the top of the first scissor arm (211) to move away from the bottom of the first scissor arm (211) so that the brake block (23) fits against the first stop (7) and the second stop (10).

21. The angle-adjustable support arm structure according to claim 18, characterized in that, The first stop (7) and the second stop (10) are respectively formed on the circumferential surfaces of the first base (6) and the second base (9); the actuator (21) includes a first scissor arm (211), a second scissor arm (212) and a control rod (215) that are hinged to each other. The bottom of the first scissor arm (211) is connected to the first stop (3), and the bottom of the first scissor arm (211) is connected to the top of the second scissor arm (212) by a second elastic element (20). The top of the second scissor arm (212) is connected to a brake block (23), and the brake block (23) is located on one side of the first stop (7) and the second stop (10); the first stop (3) is connected to a connecting rope (30), one end of the connecting rope (30) is connected to the first stop (3), and the other end of the connecting rope (30) passes through the first through hole on the control rod (215) and is connected to the stop block (19); The control rope is connected to the second stop (4) and passes through the center hole of the first base (6) and the second base (9) and is connected to the other end of the control rod (215) to drive the stop block (19) away from the first stop (7) and the second stop (10) and cause the second stop (4) to disengage from the first stop (3).

22. The angle-adjustable support arm structure according to any one of claims 1 to 3, characterized in that, The first base (6) is provided with a hollow mounting post (24), and the second base (9) is provided with mounting holes; Alternatively, a hollow mounting post (24) may be provided on the second base (9), and a mounting hole may be provided on the first base (6); The mounting post (24) passes through the mounting hole; the second base (9) has a toothed structure or a friction surface structure on the circumferential surface of the second base (9) or the mounting post (24) of the second base (9), and the first stop (7) has a toothed structure or a friction surface structure that is adapted to the second stop (10). A fixing block (25) is installed inside the first arm body (1), and the first stop (3) extends upward and slides through the fixing block (25) to form a fixing post (33). The first stop (7) is slidably connected to the inner wall of the connecting arm (2). The driving member is connected to the fixed column (33) and the first stop (7) respectively. An actuator is connected between the fixed column (33) and the first stop (7) so that the fixed column (33) and the first stop (7) move towards each other under the action of the driving member so that the first stop (7) and the second stop (10) are separated and the first stop (3) and the second stop (4) are separated.

23. The angle-adjustable support arm structure according to claim 22, characterized in that, The actuator includes a first elastic member (13) connected between the first stop (7) and the fixed column (33), a first hook structure (48) at the bottom of the first stop (7) and a second hook structure (49) at the top of the fixed column (33). The inner wall of the connecting arm (2) is provided with a first connecting hole structure (50) and a second connecting hole structure (51) in sequence along the axial direction of the connecting arm (2). The drive member (12) includes a control rope. One end of the control rope is located inside the first arm (1). The other end of the control rope passes through the second stop (4), the first stop (3), the first connecting hole structure (50), and is connected to the second hook structure (49). After being connected to the first hook structure (48) and passing through the second connecting hole structure (51), it is wound around the crossbar located in the hollow structure or passes through the mounting column (24) and then extends into the second arm (8). When the control rope is pulled, the control rope causes the first hook structure (48) and the second hook structure (49) to move toward each other, so that the first stop (7) is separated from the second stop (10) and the first stop (3) is separated from the second stop (4).

24. The angle-adjustable support arm structure according to claim 22, characterized in that, The actuator includes a first annular slider (35) and a second annular slider (36) that slide circumferentially on the inner wall of the connecting arm (2). The first annular slider (35) and the second annular slider (36) are respectively provided with a first guide groove (37) and a second guide groove (38). An installation plate (34) is provided inside the connecting arm (2). The installation plate (34) is located between the first annular slider (35) and the second annular slider (36). A column (40) is installed on the installation plate (34). The two ends of the column (40) extend into the first annular slider (35) and the second annular slider (36), respectively. The two sides of the installation plate (34) are respectively connected to a vertical plate (42) with a through hole (41). The inner sidewalls of the first annular slider (35) and the second annular slider (36) are respectively provided with a first connecting hole (43) and a second connecting hole (44) corresponding to the position of the through hole (41). The two ends of the column (40) Each is fitted with a torsion spring (45), one end of which is connected to the upright plate (42), and the other end of which is connected to the inner wall of the corresponding first annular slider (35) or second annular slider (36); a first sliding rod (46) is provided on the fixed column (33), and the end of the first sliding rod (46) extends into the second guide groove (38); a second sliding rod (47) is provided at the bottom of the first stop part (7), and the second sliding rod (47) The end extends into the first guide groove (37); the driving component (12) includes a control rope, one end of which is located inside the first arm body (1), and the other end of which passes through the second stop (4), the first stop (3), the through hole (41), the second connecting hole (44), the first connecting hole (43), the through hole (41), and passes through the first stop part (7) before winding around the crossbar located in the hollow structure or passing through the mounting column (24) before extending into the second arm body (8); When the control rope is pulled, the control rope drives the first annular slider (35) and the second annular slider (36) to rotate, and drives the first sliding rod (46) to move along the first guide groove (37) and the second sliding rod (47) to move along the second guide groove (38), so that the first stop (7) disengages from the second stop (10) and the first stop (3) disengages from the second stop (4).

25. The angle-adjustable support arm structure according to claim 1, characterized in that, The drive member (12) has a first actuating end and a second actuating end, and the first stop part (7) and the second stop part (10) are respectively formed on the circumferential surface of the first base (6) and the second base (9); Both the first stop (3) and the second stop (4) have a funnel structure with an opening facing the second arm (8). The funnel structure of the first stop (3) is located in the second stop (4). The bottom of the second stop (4) is provided with the connecting part (5). The first execution end of the driving member (12) is connected to the first stop (3). The second execution end of the driving member (12) is connected to the brake block (23). The driving member (12) drives the brake block (23) to disengage from the first stop (7) and the second stop (10) or drives the brake block (23) to engage with the first stop (7) and the second stop (10); and drives the first stop (3) to disengage from the second stop (4) or engage with the second stop (4).

26. The angle-adjustable support arm structure according to claim 1, characterized in that, The drive unit (12) has a first execution end and a second execution end. The first base (6) is provided with a mounting hole, and the second base (9) is provided with a mounting post (24). The mounting post (24) passes through the mounting hole. The mounting post (24) is located inside the connecting arm body (2) and has a cylindrical structure. The second stop part (10) is located on the outer circumferential surface of the cylindrical structure. Both the first stop (3) and the second stop (4) have a funnel structure with an opening facing the second arm (8). The funnel structure of the first stop (3) is located in the second stop (4). The bottom of the second stop (4) is provided with the connecting part (5). The first execution end of the driving member (12) is connected to the first stop (3). The second execution end of the driving member (12) is connected to the first stop (7). The first stop (7) is an arc-shaped structure and is located below the second stop (10). The driving member (12) drives the first stop (7) to disengage or engage with the second stop (10); and drives the first stop (3) to disengage from the second stop (4) or engage with the second stop (4).

27. A shooting bracket, characterized in that, The device includes a shoulder-mounted main body, a mounting base for mounting shooting equipment, and a support arm structure as described in any one of claims 1 to 26, wherein the end of the first arm (1) away from the second arm (8) is connected to the shoulder-mounted main body, and the end of the second arm (8) away from the first arm (1) is connected to the mounting base.

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