Angle adjusting device of photography support frame and photography support frame

Abstract

The utility model discloses an angle adjusting device of a photography support frame and the photography support frame, the angle adjusting device of the photography support frame comprises a base, the periphery of the base is provided with a plurality of convex blocks used for connecting support legs, the outer surfaces of the convex blocks are provided with clamping grooves, one end of a rotating seat is used for connecting pipe fittings of the support legs, and the other end of the rotating seat is provided with an opening. The housing is used for accommodating bumps; the rotating seat is provided with a locking assembly, the locking assembly comprises a bearing plate, the bearing plate can horizontally slide along the opening, a shifting block is arranged on the bearing plate, part of the shifting block is exposed out of the bottom of the opening and can abut against or be separated from the clamping groove, and when the shifting block stretches into the clamping groove, the rotating seat cannot rotate relative to the base; and when the shifting block is separated from the clamping groove, the rotating seat can rotate relative to the base. According to the technical scheme, additional tools or complicated operation steps do not need to be carried out, and a user can achieve angle locking and unlocking only by simply sliding the shifting block.

Description

Technical Field

[0001] This utility model relates to the field of photographic and video equipment technology, and in particular to an angle adjustment device for a photographic support frame and a photographic support frame. Background Technology

[0002] Camera stands, as a crucial support device, are widely used in both professional and amateur settings to provide stable support for cameras and camcorders. In shooting tasks requiring precise composition or long exposures, the stability and angle adjustment capabilities of the camera stand are particularly important. In particular, the angle adjustment design of the camera stand's support legs directly affects the adaptability of the equipment to different terrains and shooting needs, and is one of the core elements for improving shooting efficiency and quality.

[0003] Currently, most camera support brackets on the market use a manual operation method for angle adjustment. Taking the angle adjustment of the support legs as an example, it is usually controlled by a locking block mechanism. Users use a wrench to turn the screw to release the angle adjustment mechanism, adjust the support legs of the camera support bracket to the desired angle, and then turn the screw back to the original position to fix the angle.

[0004] However, the adjustment methods of related technologies are cumbersome and inefficient in dynamic shooting scenarios that require rapid angle switching. Utility Model Content

[0005] The main purpose of this invention is to propose an angle adjustment device for a camera support frame, which aims to solve the problem of cumbersome angle adjustment methods for the support legs of existing camera support frames.

[0006] To achieve the above objectives, this utility model proposes an angle adjustment device for a photographic support frame. The photographic support frame includes support legs, and the angle adjustment device is used to adjust the rotation angle of the support legs. The angle adjustment device includes:

[0007] The base has a plurality of protrusions on its outer periphery for connecting the support legs, and the outer surface of the protrusions is provided with a groove;

[0008] A rotating base, one end of which is used to connect to the tubular component of the support leg, and the other end having an opening for accommodating the protrusion; the rotating base is provided with:

[0009] A locking assembly includes a support plate that can slide horizontally along the opening. A lever is provided on the support plate, with a portion of the lever protruding from the bottom of the opening. The lever can abut against or separate from the slot. When the lever is inserted into the slot, the rotating seat cannot rotate relative to the base. When the lever is separated from the slot, the rotating seat can rotate relative to the base.

[0010] In some embodiments, the side of the support plate facing away from the push block is provided with a first strip groove, which extends along the length of the support plate;

[0011] The bottom of the opening is provided with a first limiting post that is adapted to the first strip groove. The first limiting post extends into the first strip groove to limit the stroke of the bearing plate.

[0012] In some embodiments, the first strip groove is disposed in the middle of the support plate; the support plate further includes a second strip groove and a third strip groove disposed on both sides of the first strip groove, and the bottom of the opening is further provided with a second limiting post and a third limiting post adapted to the second strip groove and the third strip groove.

[0013] In some embodiments, the locking assembly further includes two reset members, one of which is disposed at one end of the second strip groove and abuts against the second limiting post, and the other of which is disposed at one end of the third strip groove and abuts against the third limiting post.

[0014] In some embodiments, the support plate has a recessed slot on one side where the lever is provided. The slot is located at one end of the support plate and communicates with the second and third strip slots. The locking assembly also includes a plug plate that can be inserted into the slot, and the two reset members abut against the plug plate.

[0015] In some embodiments, the slot is also connected to the first strip groove, and at least one of the first limiting post and the insert plate is a magnetic element.

[0016] In some embodiments, the locking assembly further includes an operation panel for user operation, the operation panel being connected to the end of the support plate away from the slot and exposed in the opening.

[0017] In some embodiments, the operation panel and the support plate are integrally formed.

[0018] In some embodiments, guide grooves are formed on both sidewalls opposite to the opening, the guide grooves being used to guide the support plate to slide horizontally along the bottom of the opening.

[0019] This utility model further proposes a photography support frame, including the angle adjustment device of the photography support frame described in the foregoing embodiment.

[0020] The beneficial effects of this utility model are as follows: By setting a slidable lever on the rotating base and operating the bearing plate to slide horizontally along the opening, the lever can engage or disengage with the slot on the base protrusion, thus achieving convenient adjustment and locking of the support foot angle. When the lever slides to the position of engaging with the slot, the lever extends into the slot and forms an engagement, thereby preventing the rotating base from rotating relative to the base, achieving the effect of locking the support foot angle; when the lever slides to the position of disengaging from the slot, the lever disengages from the slot, no longer restricting the rotation of the rotating base, allowing the user to freely adjust the support foot angle. Compared with traditional angle adjustment devices, this utility model's technical solution does not require additional tools or complex operating steps; the user only needs to slide the lever to lock and unlock the angle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the angle adjustment device of the photography support frame in one embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the angle adjustment device of the photographic support frame in one embodiment of the present invention;

[0023] Figure 3 This is an exploded view of the angle adjustment device of the photographic support frame in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is a front view of the angle adjustment device of the photography support frame in one embodiment of the present invention;

[0026] Figure 6 for Figure 5 A structural schematic diagram of the cross-sectional view at point BB from another perspective;

[0027] Figure 7 for Figure 5 A structural schematic diagram of the cross-sectional view at point CC from another perspective.

[0028] Explanation of icon numbers:

[0029] 100, base; 101, protrusion; 101a, slot;

[0030] 200, Rotating seat; 200a, Opening; 201, First limiting post; 202, Second limiting post; 203, Third limiting post; 204, Guide groove;

[0031] 300. Locking assembly; 301. Carrier plate; 302. Toggle block; 311. First slot; 312. Second slot; 313. Third slot; 303. Reset component; 304. Slot; 305. Insert plate; 306. Operation plate.

[0032] 10. Angle adjustment device;

[0033] 20. Photography support frame.

[0034] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0037] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0038] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0039] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an angle adjustment device 10 for a camera support frame 20. The camera support frame 20 includes support legs, and the angle adjustment device 10 is used to adjust the rotation angle of the support legs. The angle adjustment device 10 of the camera support frame 20 includes:

[0040] The base 100 has a plurality of protrusions 101 on its outer periphery for connecting the support feet, and the outer surface of the protrusions 101 is provided with a groove 101a;

[0041] The rotating seat 200 has a tube fitting for connecting to the support leg at one end and an opening 200a at the other end for accommodating the protrusion 101; the rotating seat 200 is provided with:

[0042] The locking assembly 300 includes a support plate 301, which can slide horizontally along the opening 200a. A lever 302 is provided on the support plate 301, and part of the lever 302 is exposed at the bottom of the opening 200a. It can abut or separate from the slot 101a. When the lever 302 is inserted into the slot 101a, the rotating seat 200 cannot rotate relative to the base 100. When the lever 302 is separated from the slot 101a, the rotating seat 200 can rotate relative to the base 100.

[0043] In this embodiment, the base 100 serves as the support base and connecting hub for the entire angle adjustment device 10, providing stable support and allowing the support feet to be adjusted at multiple angle positions. The base 100 can be made of materials such as aluminum alloy, high-strength engineering plastic, or stainless steel, possessing characteristics such as lightweight, high strength, and corrosion resistance. Its shape can be disc-shaped, polygonal, or a special design. The outer periphery of the base 100 has multiple protrusions 101 to form a "three-part base" in the photography industry. It should be noted that in this embodiment, only three protrusions 101 are used as an example on the outer periphery of the base 100; of course, in other embodiments, four, five, or other protrusions can be provided, and no particular limitation is made here.

[0044] In this embodiment, the rotating seat 200 serves to connect the support leg and provide an adjustable rotation mechanism. As an intermediate connector between the base 100 and the support leg, the rotating seat 200 has one end for connecting the support leg's tubular component and the other end with an opening 200a to accommodate the protrusion 101 on the base 100. The rotating seat 200 is equipped with a locking assembly 300 to lock the relative rotation of the rotating seat 200 relative to the protrusion 101. Specifically, the locking assembly 300 includes a support plate 301, which can slide horizontally along the opening 200a. A lever 302 is provided on the support plate 301, with a portion of the lever 302 exposed at the bottom of the opening 200a. The lever 302 can abut against or separate from the slot 101a. When the lever 302 is inserted into the slot 101a, the rotating seat 200 cannot rotate relative to the base 100; when the lever 302 is separated from the slot 101a, the rotating seat 200 can rotate relative to the base 100.

[0045] When using the angle adjustment device 10 of this embodiment, the user can operate it in the following way: First, the user pulls the support plate 301 to move it along the first direction, so that the lever 302 moves to the first position. At this time, the lever 302 separates from the slot 101a on the protrusion 101. The user can turn the rotating seat 200 around the protrusion to adjust the angle. After adjusting to the required angle, the support plate 301 is pushed along the second direction, so that the lever 302 moves to the second position (i.e., reset). At this time, since the rotating seat 200 has rotated a certain angle, the lever 302 will abut against the protrusion 101 when it moves to the second position and extend into the slot 101a, so that the rotating seat 200 cannot rotate relative to the base 100, thus achieving a locked state.

[0046] In another convenient usage method, the user can rotate the rotating base 200 to its maximum opening degree, then insert the lever 302 into the slot 101a, and then directly push the rotating base 200 and the support foot to achieve angle adjustment. Specifically, when pushing the rotating base 200 and the support foot, since the slots 101a have a unidirectional slope, the lever 302 can slide out of the current slot 101a driven by the rotating base 200, and then slide into another slot 101a under the action of gravity. In this way, the user does not need to operate the support plate 301 anymore, and can focus more attention on finding a suitable shooting angle, which greatly improves the efficiency of the actual shooting work.

[0047] The beneficial effects of this utility model are as follows: By setting a slidable lever 302 on the rotating seat 200 and operating the bearing plate 301 to slide horizontally along the opening 200a, the lever 302 can abut or separate from the slot 101a on the protrusion 101 of the base 100, thereby achieving convenient adjustment and locking of the support foot angle. When the lever 302 slides to the position abutting against the slot 101a, the lever 302 extends into the slot 101a and abuts against the slot 101a, thereby preventing the rotating seat 200 from rotating relative to the base 100, achieving the effect of locking the support foot angle; when the lever 302 slides to the position separating from the slot 101a, the lever 302 disengages from the slot 101a, no longer restricting the rotation of the rotating seat 200, allowing the user to freely adjust the angle of the support foot. Compared with the traditional angle adjustment device 10, the technical solution of this utility model does not require additional tools or complex operating steps, and is simple and intuitive to operate, thus improving the practicality and convenience of the photography support 20.

[0048] Continue reading Figure 3 and Figure 4 In this embodiment, the side of the support plate 301 facing away from the push block 302 is provided with a first strip groove 311, which extends along the length direction of the support plate 301.

[0049] The bottom of the opening 200a is provided with a first limiting post 201 that is adapted to the first strip groove 311. The first limiting post 201 extends into the first strip groove 311 to limit the stroke of the bearing plate 301.

[0050] In this embodiment, the horizontal sliding of the support plate 301 relative to the rotating seat 200 is achieved by setting the first strip groove 311 and the first limiting post 201, while limiting the movement stroke of the support plate 301, ensuring that the support plate 301 can move accurately between the first position and the second position. This structural design makes the movement of the support plate 301 more stable and controllable, preventing structural damage or functional failure caused by excessive displacement of the support plate 301 during operation.

[0051] Furthermore, to address the issue of the support plate 301 potentially shifting unexpectedly from its second position under external force, this embodiment incorporates a first locking element on the first limiting post 201. This first locking element can be a snap-fit ​​structure. A slot 101a is then provided on the inner wall of the first strip groove 311 opposite to the locking element. The slot 101a and the snap-fit ​​engage to fix the two elements in place, thus keeping the lever 302 in its second position. This locking mechanism ensures that the support plate 301 remains stably locked even during photography, despite vibrations or accidental impacts, thereby improving the stability and reliability of the entire support frame.

[0052] Of course, in another embodiment, the first locking element can be a magnet, and the carrier plate 301 is made of a magnetic metal material, such as an iron alloy, nickel-plated or iron-containing metal parts. In this way, the first locking element can directly adsorb onto the inner wall of the first strip groove 311; or a magnet can also be provided in the first strip groove 311 to form magnet-to-magnet adsorption and generate a stronger locking force.

[0053] To further improve the reliability and service life of the locking mechanism, the latch of the first locking component can be made of elastic material, such as spring steel or high-strength engineering plastic, to ensure that it maintains good elasticity and locking effect after long-term use. In the magnetic locking scheme, high-performance rare-earth permanent magnet materials such as neodymium iron boron can be selected, which have the characteristics of small size, strong magnetic force, and good stability.

[0054] Continue reading Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In this embodiment, the first strip groove 311 is disposed in the middle of the support plate 301; the support plate 301 also includes a second strip groove 312 and a third strip groove 313 disposed on both sides of the first strip groove 311, and the bottom of the opening 200a is also provided with a second limiting post 202 and a third limiting post 203 adapted to the second strip groove 312 and the third strip groove 313.

[0055] In this embodiment, based on the original first strip groove 311, a parallel second strip groove 312 and a third strip groove 313 are further provided, and a matching second limiting post 202 and a third limiting post 203 are also provided at the bottom of the opening 200a of the rotating seat 200. This multi-slot and multi-post design constitutes a more complete guiding system, making the sliding of the bearing plate 301 more stable and controllable.

[0056] The combination of multiple slots and multiple limiting posts can provide more precise guiding function, ensuring that the sliding trajectory of the bearing plate 301 in the horizontal direction is more straight, avoiding possible offset or shaking when guided by a single slot, and improving the operating accuracy.

[0057] Secondly, the three-point support structure significantly enhances the structural stability of the entire locking assembly 300, effectively preventing the tilting or jamming of the bearing plate 301 when subjected to uneven force, so that even when operating on uneven ground or in strong winds, the engagement between the lever 302 and the slot 101a can maintain precise alignment.

[0058] At the same time, the multi-point stress distribution disperses the stress distribution of the bearing plate 301 during use, reduces local wear, and greatly extends the service life of the entire angle adjustment device 10. This durability is especially important in professional photography scenarios where high-frequency adjustment is used.

[0059] Continue reading Figure 3 and Figure 4 In this embodiment, the locking assembly 300 further includes two reset members 303. One reset member 303 is disposed at one end of the second strip groove 312 and abuts against the second limiting post 202. The other reset member 303 is disposed at one end of the third strip groove 313 and abuts against the third limiting post 203.

[0060] In this embodiment, the key function of the two reset members 303 is to provide an active pushing force for the support plate 301 to move to the first position (i.e., the reset position). This is an important improvement over the previous embodiments, because the reset in the previous embodiments mainly relied on gravity or attraction, which may not be stable and reliable enough in actual use environments. The reset member 303 used in this embodiment can be a compression spring, which has good elastic recovery characteristics and can provide a stable and predictable thrust.

[0061] During operation, the user first pulls the support plate 301 to move the lever 302 to the second position. At this time, the first locking element (taking a magnetic suction device as an example) on the first limiting post 201 attracts each other to the inner wall of the first slot 311, allowing the lever 302 to be stably held in the second position. Simultaneously, the reset elements 303 in the second slot 312 and the third slot 313 abut against the second limiting post 202 and the third limiting post 203 respectively, and are compressed in this process, thereby storing elastic potential energy. At this time, the user can directly operate the rotating seat 200 to freely adjust the angle of the support foot.

[0062] Once the appropriate angle is achieved, the user gently pushes the support plate 301 to release the locking state (i.e., the adhesion between the first locking member and the inner wall of the first strip groove 311 is overcome). At this time, under the simultaneous pushing force of the two reset members 303, the support plate 301 drives the lever 302 to move quickly and smoothly to the first position (reset position). At this time, the lever 302 will precisely extend into the slot 101a on the protrusion 101, thereby firmly fixing the angle of the rotating seat 200.

[0063] Subsequently, if the user needs to further adjust the position of the support feet, they can directly apply downward pressure to the rotating seat 200 (downward pressure relative to the horizontal direction). At this time, the lever 302 will smoothly slide out of the current slot 101a, and the support plate 301 will move accordingly, while compressing the reset member 303 again. At this time, the reset member 303 stores energy and provides elastic support force to the support plate 301. As the lever 302 slides into the next slot 101a, the reset member 303 releases thrust to push the support plate 301, and drives the lever 302 to penetrate the slot 101a more precisely, ensuring the reliability of the locking.

[0064] By setting up symmetrical double reset components 303, the load-bearing plate 301 is ensured to be subjected to balanced force during movement, avoiding torque imbalance that may be caused by a single-sided spring, making the entire operation process smoother and more controllable.

[0065] Continue reading Figure 3 In this embodiment, the support plate 301 has a recessed slot 304 on one side where the toggle block 302 is provided. The slot 304 is located at one end of the support plate 301 and communicates with the second strip groove 312 and the third strip groove 313. The locking assembly 300 also includes a plug plate 305, which can be inserted into the slot 304. The two reset members 303 abut against the plug plate 305.

[0066] In this embodiment, by providing a slot 304 on the support plate 301 and connecting the slot 304 with the second strip groove 312 and the third strip groove 313, the reset component 303 can be directly mounted on the detachable insert plate 305. This modular design makes the installation, replacement, and maintenance of the reset component 303 more convenient. The insert plate 305, as an independent component, can be easily inserted or removed as needed, greatly simplifying the product manufacturing process and subsequent maintenance.

[0067] Secondly, when the reset component 303 needs to be replaced or maintained, the user only needs to remove the insert plate 305, without having to disassemble the entire angle adjustment device 10, which greatly improves the maintainability and service life of the product.

[0068] In addition, the design of the insert 305 allows for quick replacement of different specifications of the reset component 303 in different usage scenarios. For example, a reset component 303 with a high elasticity coefficient can be installed when used on heavy photography equipment, while a reset component 303 with a low elasticity coefficient can be used on light equipment, providing greater adaptability and user customization possibilities.

[0069] Continue reading Figure 3 and Figure 6 In this embodiment, the slot 304 is also connected to the first strip groove 311, and at least one of the first limiting post 201 and the insert plate 305 is a magnetic attraction element.

[0070] In this embodiment, a more integrated solution is achieved by designing a structure in which slot 304 is fully connected to the first strip groove 311, the second strip groove 312, and the third strip groove 313. Specifically, the insert plate 305 can be made of a magnetic material (such as ferrous metal or permanent magnet material), and the reset member 303 is directly installed on the insert plate 305. In this way, the material selection of the support plate 301 is no longer limited by magnetic requirements, and plastic, aluminum alloy, or other non-magnetic materials can be used, as long as at least one of the insert plate 305 and the first limiting post 201 has magnetic attraction capability to achieve the locking function.

[0071] See Figure 2 In this embodiment, the locking assembly 300 also includes an operation plate 306 for user operation. The operation plate 306 is connected to the end of the support plate 301 away from the slot 304 and is exposed in the opening 200a.

[0072] In this embodiment, the main function of the control panel 306 is to provide a user with an interface that is easy to grip and operate, expanding the operable area and allowing the user to pull the support plate 301 more easily. The control panel 306 is designed at the end of the support plate 301 away from the slot 304 and exposed in the opening 200a, ensuring that the user can directly access and operate it without special tools or complicated actions.

[0073] Furthermore, the operating panel 306 and the support plate 301 are integrally formed. This integral forming not only improves the structural strength and avoids loosening or breakage at the connection points, but also simplifies the manufacturing process and reduces production costs.

[0074] The integrated design of the control panel 306 and the support plate 301 not only enhances the structural strength but also avoids additional assembly steps, simplifies the production process, eliminates the risk of misoperation due to loose connections, and improves the reliability and durability of the entire adjustment device.

[0075] By introducing the design of the operation panel 306, this embodiment further optimizes the user interface and operating experience while maintaining the aforementioned functions, making the angle adjustment process of the camera support 20 more intuitive, convenient and reliable.

[0076] See Figure 3 and Figure 4 In this embodiment, guide grooves 204 are constructed on the two side walls opposite to the opening 200a. The guide grooves 204 are used to guide the support plate 301 to slide horizontally along the bottom of the opening 200a.

[0077] In this embodiment, guide grooves 204 are provided on the two opposite sidewalls of the opening 200a of the rotating seat 200, providing additional guidance and support for the horizontal sliding of the support plate 301. These guide grooves 204 are adapted to the edges of the support plate 301. When the support plate 301 moves horizontally, its edges slide within the guide grooves 204, ensuring that the movement trajectory of the support plate 301 is strictly kept within a predetermined plane, avoiding vertical swaying or skew.

[0078] This utility model further proposes a photography support frame 20, including the angle adjustment device 10 of the photography support frame 20 in the foregoing embodiments. The specific structure of the angle adjustment device 10 of the photography support frame 20 is as described in the above embodiments. Since this photography support frame 20 adopts all the technical solutions of all the above embodiments, it has at least all the technical effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0079] In this embodiment, the photography support frame 20 systematically integrates the aforementioned angle adjustment device 10 with other photography support components such as support legs, connecting pipes, and a gimbal, forming a complete and fully functional photography support system. The angle adjustment device 10, as the core component of the entire support frame, provides a reliable guarantee for the precise angle adjustment of the support legs.

[0080] The support feet can be made of lightweight, high-strength carbon fiber material and are tightly connected to one end of the rotating base 200, enabling precise angle positioning and stable locking under the control of the angle adjustment device 10. Considering adaptability to various terrains, the bottom of the support feet can be fitted with rubber pads and metal spikes, making them suitable for use in different ground environments.

[0081] The top gimbal can employ a fluid damping design to provide a smooth experience of rotating the photography equipment, working perfectly with the lower angle adjustment device 10 to achieve all-around position control from coarse to fine adjustment.

[0082] By systematically integrating the advantages of all the aforementioned technical solutions, this embodiment provides a high-performance photographic support frame 20 that is easy to operate, precise to adjust, reliable to lock, and highly adaptable.

[0083] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. An angle adjustment device for a camera support frame, the camera support frame including support legs, the angle adjustment device being used to adjust the rotation angle of the support legs, characterized in that, The angle adjustment device includes: The base has a plurality of protrusions on its outer periphery for connecting the support legs, and the outer surface of the protrusions is provided with a groove; A rotating base, one end of which is used to connect to the tubular component of the support leg, and the other end having an opening for accommodating the protrusion; the rotating base is provided with: A locking assembly includes a support plate that can slide horizontally along the opening. A lever is provided on the support plate, with a portion of the lever protruding from the bottom of the opening. The lever can abut against or separate from the slot. When the lever is inserted into the slot, the rotating seat cannot rotate relative to the base. When the lever is separated from the slot, the rotating seat can rotate relative to the base.

2. The angle adjustment device for the photographic support frame according to claim 1, characterized in that, The side of the support plate facing away from the push block is provided with a first strip groove, which extends along the length of the support plate. The bottom of the opening is provided with a first limiting post that is adapted to the first strip groove. The first limiting post extends into the first strip groove to limit the stroke of the bearing plate.

3. The angle adjustment device for the photographic support frame according to claim 2, characterized in that, The first strip groove is disposed in the middle of the support plate; the support plate also includes a second strip groove and a third strip groove disposed on both sides of the first strip groove, and the bottom of the opening is also provided with a second limiting post and a third limiting post adapted to the second strip groove and the third strip groove.

4. The angle adjustment device for the photographic support frame according to claim 3, characterized in that, The locking assembly further includes two reset members. One reset member is located at one end of the second strip groove and abuts against the second limiting post. The other reset member is located at one end of the third strip groove and abuts against the third limiting post.

5. The angle adjustment device for the photographic support frame according to claim 4, characterized in that, The support plate has a recessed slot on one side where the lever is located. The slot is located at one end of the support plate and communicates with the second and third strip slots. The locking assembly also includes a plug plate that can be inserted into the slot. The two reset members abut against the plug plate.

6. The angle adjustment device for the photographic support frame according to claim 5, characterized in that, The slot is also connected to the first strip groove, and at least one of the first limiting post and the insert plate is a magnetic element.

7. The angle adjustment device for the photographic support frame according to claim 5, characterized in that, The locking assembly also includes an operation panel for user operation, the operation panel being connected to the end of the support plate away from the slot and exposed in the opening.

8. The angle adjustment device for the photographic support frame according to claim 7, characterized in that, The operating panel and the support plate are integrally formed.

9. The angle adjustment device for the photographic support frame according to claim 1, characterized in that, Guide grooves are constructed on the two side walls opposite to the opening, and the guide grooves are used to guide the support plate to slide horizontally along the bottom of the opening.

10. A photographic support frame, characterized in that, Includes the angle adjustment device for the camera support frame as described in any one of claims 1 to 9.

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