Support frame

Abstract

The utility model relates to a supporting frame which comprises a base body, at least two supporting legs, a torsion spring, a movable ring and a reset piece, and each supporting leg is provided with a rotating end and a supporting end which are located at the two opposite ends in the length direction of the supporting leg; the torsion spring is connected with the seat body and the rotating end; the movable ring sleeves the outer sides of the seat body and the supporting legs, and the movable ring can move in the height direction of the supporting frame so as to limit or release the rotation of the rotating end; the reset piece is arranged between the base body and the movable ring, the supporting legs are folded, the reset piece drives the movable ring to move downwards, and the movable ring locks the supporting legs. According to the supporting frame, only the movable ring needs to be moved upwards, the rotating end rotates relative to the base body under the action of the torsional spring and is automatically unfolded, a user does not need to open the supporting legs one by one and fix the supporting legs one by one, operation is convenient, one-key triggering is achieved, and user experience is good.

Description

Technical Field

[0001] The utility model relates to the field of photographic accessories, in particular to a supporting frame. Background Art

[0002] As more and more people like photography, in order to achieve certain photographic effects, people often use the help of a photography support stand. The photography support stand in the prior art has three legs that need to be opened one by one, and then the angle of each leg needs to be adjusted, and then the angle of each leg needs to be locked one by one. For example, Chinese patent document CN214405417U discloses a desktop tripod. When using the desktop tripod, the user needs to loosen three sets of fixed screws by hand, and then adjust the angles of the three sets of support legs. After the adjustment is completed, the three sets of fixed screws need to be tightened by hand before the tripod can be used. The operation is cumbersome and the user experience is poor. Utility Model Content

[0003] The utility model provides a support frame to solve the problem that when a tripod is used, the supporting legs need to be opened and fixed one by one, which is troublesome to operate.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A support frame, comprising:

[0006] seat body;

[0007] At least two legs, each of the legs having a rotating end and a supporting end located at two opposite ends in the length direction thereof, and the rotating end is rotatably connected to the base;

[0008] Torsion springs, the number of which corresponds to the number of the legs, the torsion springs connecting the seat body and the rotating end;

[0009] A movable ring is sleeved on the outer sides of the seat body and the supporting legs, and the movable ring can move along the height direction of the support frame to restrict or release the restriction on the rotation of the rotating end;

[0010] A reset member is arranged between the seat body and the movable ring. When the legs are folded, the reset member drives the movable ring to move downward, and the movable ring locks the legs.

[0011] In one embodiment, a protruding limit block is provided at the bottom of the movable ring. There are multiple limit blocks, which are arranged at intervals along the circumference of the movable ring. An avoidance gap is formed between two adjacent limit blocks, and the avoidance gap corresponds to the number of the legs to allow the legs to rotate and unfold.

[0012] In one embodiment, the rotating end of each of the legs includes a short diameter section and a long diameter section located between the short diameter section and the supporting end. When the leg is unfolded or folded, the avoidance gap allows the short diameter section to pass through. The circumferential width of the long diameter section is greater than the circumferential width of the avoidance gap. After the leg is unfolded, the long diameter section abuts against the outer wall of the limit block to maintain it in the semi-expanded state.

[0013] In one embodiment, the inner side wall of the limit block is provided with a plurality of inclined blocks, and the plurality of inclined blocks are arranged at intervals along the circumference of the movable ring, the number of the inclined blocks is adapted to the number of the legs, the inclined block is provided with a first inclined surface, the distance from the first inclined surface to the central axis of the support frame decreases from the side close to the support end to the side away from the support end, the short diameter section is provided with a second inclined surface, and when the legs are in a folded state, the distance from the second inclined surface to the central axis of the support frame decreases from the side close to the long diameter section to the side away from the long diameter section, and the movable ring moves downward along the height direction of the support frame until the first inclined surface abuts against the second inclined surface.

[0014] In one embodiment, the support frame further includes a silicone pad, and the silicone pad is arranged on the first inclined surface and / or the second inclined surface.

[0015] In one embodiment, the side wall of the base body is provided with a receiving groove, and the rotating end is installed in the receiving groove. The shape of the receiving groove is adapted to the shape of the support leg. The two opposite side walls of the receiving groove are both provided with limiting protrusions. When the rotating end is rotated until the extension direction of the support leg is parallel to the height direction of the support frame, the rotating end abuts against the limiting protrusion to limit the support leg from continuing to rotate relative to the base body.

[0016] In one embodiment, the seat body includes a main body and an adapter seat, the opposite ends of the main body are respectively connected to the adapter seat and the leg, the main body is provided with a mounting groove, the mounting groove and the accommodating groove are arranged at intervals along the circumference of the main body, the reset member is accommodated in the mounting groove, and the adapter seat is used to install the shooting equipment.

[0017] In one embodiment, the reset member is an elastic member, which is arranged between the adapter seat and the movable ring. The adapter seat is provided with a limiting groove, and the limiting groove is arranged at intervals along the circumference of the adapter seat. The movable ring is provided with a support plate and a boss, and the support plate and the boss are both arranged on the inner side wall of the limiting block. The boss is arranged at one end of the support plate away from the supporting end along the height direction of the support frame, and the opposite two ends of the elastic member are elastically abutted against the bottom of the limiting groove and the support plate, and are sleeved on the outer side of the boss.

[0018] In one embodiment, the seat body is provided with a step surface, the step surface extends along the circumference of the seat body, and the radial dimension of the seat body at one end close to the support leg is smaller than the radial dimension of the seat body at one end away from the support leg.

[0019] In one of the embodiments, grooves are provided on both side edges of each leg along the circumference of the seat body. When each leg is in a folded state, any two adjacent grooves along the circumference of the seat body are combined to form a sunken avoidance groove.

[0020] It can be seen from the above technical solutions that the embodiments of the utility model have at least the following advantages and positive effects:

[0021] The support frame of the utility model embodiment includes a base body, at least two legs, a torsion spring, a movable ring and a reset member. The movable ring can move upward under the action of an external force. To use the support frame, one only needs to move the movable ring upward, and the rotating end rotates relative to the base body under the action of the torsion spring and automatically unfolds. The user does not need to open and fix the legs one by one. The operation is convenient, one-button triggering is achieved, and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 The utility model provides an overall structural schematic diagram of a support frame in an embodiment;

[0024] Figure 2 for Figure 1 A schematic structural diagram of the support frame in a semi-expanded state shown;

[0025] Figure 3 for Figure 2 The exploded structural diagram of the support frame shown;

[0026] Figure 4 for Figure 1 A schematic diagram of the expanded state of the support frame shown;

[0027] Figure 5 for Figure 1 A schematic cross-sectional structure diagram of a movable ring of the support frame shown;

[0028] Figure 6 for Figure 3A schematic structural diagram of the seat body and elastic member of the support frame is shown.

[0029] The following are the descriptions of the reference numerals:

[0030] 10. Support frame; 100. Base body; 110. Step surface; 120. Accommodating groove; 121. Limiting protrusion; 130. Main body; 131. Mounting groove; 140. Adapter seat; 141. Limiting groove; 200. Leg; 210. Rotating end; 211. Short diameter section; 212. Long diameter section; 213. Second inclined surface; 220. Support end; 230. Groove; 231. Avoiding groove; 300. Torsion spring; 400. Movable ring; 410. Limiting block; 411. Oblique block; 412. First inclined surface; 413. Abutting surface; 420. Avoiding notch; 430. Support plate; 440. Boss; 500. Reset member; 510. Elastic member; 600. Silicone pad. DETAILED DESCRIPTION

[0031] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] First see Figure 1The utility model provides a support frame 10 for supporting a shooting device to prevent the shooting device from shaking and affecting the shooting effect when the user is using the shooting device. By shooting with the support frame 10, the user can get the desired photography effect. The support frame 10 can be used in conjunction with the shooting device to adapt to a variety of usage scenarios. The support frame 10 can be unfolded in a variety of usage scenarios, and the user can switch between different usage methods according to usage requirements, and the user experience is good.

[0035] It should be noted that the shooting equipment is electronic devices such as mobile phones and cameras.

[0036] refer to Figure 2 and Figure 3 The support frame 10 includes a base 100, a leg 200 and a torsion spring 300. The number of the legs 200 is set to at least two. The two legs 200 are rotatably connected to the base 100 so that the legs 200 can be switched between a folded state and an unfolded state. Figure 1 In the folded state, the support frame 10 can be stored, and the storage volume is small, which is convenient for transportation; Figure 2 In the unfolded state, the support frame 10 can be placed on a support surface and used in conjunction with a photographing device for photographing. The number of torsion springs 300 corresponds to the number of legs 200. The torsion springs 300 are connected between the legs 200 and the base 100. When the legs 200 are rotated and switched from the unfolded state to the retracted state, the torsion springs 300 accumulate elastic force. When the legs 200 are switched from the retracted state to the unfolded state, the torsion springs 300 release the elastic force and the legs 200 are automatically unfolded.

[0037] refer to Figure 1 and Figure 2 It should be noted that, in this embodiment, the number of the legs 200 is set to three. In other embodiments, the number of the legs 200 can be set to four or five. Therefore, the utility model does not specifically limit the number of the legs 200.

[0038] It should be noted that the support surface is the position where the support frame 10 is fixed, and the support surface can be a photography position such as a desktop or the ground.

[0039] refer to Figure 2 It should be noted that each leg 200 has a rotating end 210 and a supporting end 220 located at opposite ends of its length direction, and the rotating end 210 is rotatably connected to the base body 100; the torsion spring 300 is connected to the base body 100 and the rotating end 210.

[0040] refer to Figure 3The support frame 10 also includes a movable ring 400 and a reset member 500. The movable ring 400 is sleeved on the outer side of the base body 100 and the support leg 200 and can move along the height direction of the support frame 10 to limit or release the restriction on the rotation of the rotating end 210; the reset member 500 is arranged between the base body 100 and the movable ring 400, and the support leg 200 is folded. The reset member 500 drives the movable ring 400 to move downward, and the movable ring 400 locks the support leg 200.

[0041] It should be noted that, under the action of the reset force of the reset member 500, the movable ring 400 remains in the locked position, the rotation of the rotating end 210 relative to the base body 100 is restricted by the movable ring 400, the support leg 200 is in a folded state, and the support frame 10 can be stored for easy transportation or carrying; the movable ring 400 can move up in the height direction of the support frame 10 under the action of external force, the movable ring 400 releases the restriction on the rotation of the rotating end 210, and the rotating end 210 rotates relative to the base body 100 under the action of the torsion spring 300 and automatically unfolds.

[0042] To summarize, in the present application, the support frame 10 includes a base body 100, at least two legs 200, a torsion spring 300, a movable ring 400 and a reset member 500. The movable ring 400 can move upward under the action of an external force. When using the support frame 10, it is only necessary to move the movable ring 400 upward, and the rotating end 210 rotates relative to the base body 100 under the action of the torsion spring 300 and automatically unfolds. The user does not need to open the legs 200 one by one and fix the legs 200 one by one. The operation is convenient, one-button triggering is achieved, and the user experience is good.

[0043] refer to Figure 2 and Figure 4 , release the external force acting on the movable ring 400, and the leg 200 is maintained in a semi-expanded state at a preset angle under the action of the torsion spring 300; the support end 220 in the semi-expanded state is supported on the support surface, and the leg 200 continues to expand. After releasing the external force acting on the movable ring 400, the reset member 500 releases the reset force, and the movable ring 400 moves downward along the height direction of the support frame 10. The movable ring 400 restricts the rotation of the rotating end 210 relative to the base 100, but the rotating end 210 can rotate relative to the base 100 under the action of the torsion spring 300. The elastic force of the torsion spring 300 and the reset force of the reset member 500 offset each other, and the leg 200 is maintained in a semi-expanded state. Place the support frame 10 in the semi-expanded state on the support surface. Under the action of gravity, the leg 200 of the support frame 10 continues to rotate relative to the base 100 until the maximum expansion angle is reached.

[0044] It should be noted that, in other embodiments, the external force acting on the movable ring 400 is released, and the leg 200 is directly unfolded to the maximum unfolding angle under the action of sufficient torsional force of the torsion spring 300. The support frame 10 does not need to be placed on a supporting surface to switch to the unfolded state, and can adapt to more usage scenarios without relying on a supporting surface to unfold.

[0045] It should be noted that the support frame 10 maintained in a semi-expanded state is unstable if the elastic force of the torsion spring 300 and the restoring force of the restoring member 500 cancel each other out. Figure 2 The bottom of the movable ring 400 is provided with a protruding limit block 410, and the number of the limit blocks 410 is set to be multiple, and the number of the limit blocks 410 is adapted to the number of the legs 200. The multiple limit blocks 410 are arranged at intervals along the circumference of the movable ring 400, and an avoidance gap 420 is formed between two adjacent limit blocks 410. The avoidance gap 420 corresponds to the number of the legs 200, so that the legs 200 can be rotated and unfolded, and the circumferential width of the legs 200 is smaller than the circumferential width of the avoidance gap 420. By setting the avoidance gap 420, the avoidance gap 420 can reduce the moving distance of the movable ring 400 when it is unlocked. The legs 200 can be switched to a semi-expanded state or an unfolded state as long as the rotating end 210 passes through the avoidance gap 420.

[0046] It should be noted that, in the present embodiment, the rotating end 210 of each leg 200 includes a short diameter section 211 and a long diameter section 212 located between the short diameter section 211 and the supporting end 220. When the leg 200 is unfolded or folded, the avoidance gap 420 allows the short diameter section 211 to pass through; the circumferential width of the long diameter section 212 is greater than the circumferential width of the avoidance gap 420. After the leg 200 is unfolded, the long diameter section 212 abuts against the outer wall of the limit block 410 to maintain it in a semi-expanded state. When the movable ring 400 moves upward along the height direction of the support frame 10, the short diameter section 211 rotates under the action of the torsion spring 300 and passes through the avoidance gap 420; after releasing the external force acting on the movable ring 400, the movable ring 400 moves downward along the height direction of the support frame 10 under the action of the reset member 500, and the movable ring 400 passes through the gap between two adjacent legs 200. The long diameter section 212 rotates relative to the seat body 100 under the drive of the movable ring 400 and abuts against the outer wall of the limit block 410, so that the legs 200 are maintained in a semi-expanded state. Alternatively, the short diameter section 211 rotates under the action of the torsion spring and passes through the avoidance gap 420, and the legs 200 are directly switched to the expanded state under the action of the torsion force of the torsion spring 300.

[0047] refer to Figure 2 and Figure 5The inner wall of the limit block 410 is provided with a plurality of inclined blocks 411, and the plurality of inclined blocks 411 are arranged at intervals along the circumference of the movable ring 400, and the number of the inclined blocks 411 is adapted to the number of the legs 200, and the inclined block 411 is provided with a first inclined surface 412, and the distance from the first inclined surface 412 to the central axis of the support frame 10 decreases from the side close to the support end 220 to the side away from the support end 220, and the short diameter section 211 is provided with a second inclined surface 213, and when the leg 200 is in a folded state, the distance from the second inclined surface 213 to the central axis of the support frame 10 decreases from the side close to the long diameter section 212 to the side away from the long diameter section 212, and the movable ring 400 moves downward along the height direction of the support frame 10 until the first inclined surface 412 abuts against the second inclined surface 213. When the reset member 500 releases the reset force, the movable ring 400 moves downward along the height direction of the support frame 10 until the first inclined surface 412 abuts against the second inclined surface 213, and the movable ring 400 can no longer move downward along the height direction of the support frame 10, which can reduce the degree of damage to the reset member 500 and effectively prevent the user from moving the movable ring 400 downward along the height direction of the support frame 10 during use, effectively increasing the service life of the support frame 10. It can be understood that without considering the degree of damage to the reset member 500, the first inclined surface 412 and the second inclined surface 213 may not be provided, as long as the movable ring 400 can limit the rotation of the rotating end 210 relative to the base 100, all solutions should be protected.

[0048] refer to Figure 2 and Figure 3 It should be noted that, in this embodiment, the support frame 10 also includes a silicone pad 600, and the silicone pad 600 is arranged on the second inclined surface 213. Under the reset force of the reset member 500, the movable ring 400 will impact the second inclined surface 213, and the first inclined surface 412 and the second inclined surface 213 will collide, making a loud noise. By setting the silicone pad 600 on the second inclined surface 213, the collision between the first inclined surface 412 and the second inclined surface 213 can be effectively buffered, the noise can be reduced, and the user experience is good. It can be understood that the silicone pad 600 may not be set, as long as the first inclined surface 412 can abut against the second inclined surface 213, all solutions should be protected.

[0049] It should be noted that, in other embodiments, the silicone pad 600 is disposed on the first inclined surface 412 .

[0050] It should be noted that, in other embodiments, both the first inclined surface 412 and the second inclined surface 213 are provided with a silicone pad 600 .

[0051] refer to Figure 6The side wall of the base body 100 is provided with a receiving groove 120, and the rotating end 210 is installed in the receiving groove 120. The shape of the receiving groove 120 is adapted to the shape of the leg 200. When the leg 200 is unfolded, the rotating end 210 abuts against the groove wall of the receiving groove 120 to limit the leg 200 from continuing to unfold relative to the base body 100.

[0052] Continue to refer Figure 6 It should be noted that the two opposite side walls of the receiving groove 120 are both provided with limiting protrusions 121. When the rotating end 210 rotates to the point where the extension direction of the leg 200 is parallel to the height direction of the support frame 10, the rotating end 210 abuts against the limiting protrusions 121 to limit the leg 200 from continuing to rotate relative to the seat body 100. By providing the limiting protrusions 121, the folding angle of the leg 200 can be limited. The leg 200 can only be folded to the point where the extension direction of the leg 200 is parallel to the height direction of the support frame 10. This can effectively prevent the leg 200 from exceeding the maximum folding angle when one leg 200 is pulled alone, and can effectively reduce the damage to the torsion spring 300. It can be understood that the limiting protrusions 121 may not be provided, and any solution in which the leg 200 can switch between the folded state and the unfolded state should be protected.

[0053] refer to Figure 3 and Figure 6 The seat 100 includes a main body 130 and an adapter 140. The two opposite ends of the main body 130 are connected to the adapter 140 and the legs 200 respectively. The adapter 140 is used to transfer the shooting equipment. The step surface 110 is arranged on the side of the adapter 140 close to the main body 130. The main body 130 is provided with a mounting groove 131. The mounting groove 131 and the receiving groove 120 are arranged at intervals along the circumference of the main body 130. The reset member 500 is accommodated in the mounting groove 131. By providing the mounting groove 131, the reset member 500 is accommodated in the mounting groove 131, and the structure of the seat 100 and the reset member 500 is more compact. The seat 100 does not need to set up a space for installing the reset member 500. The volume of the seat 100 is small, and the volume of the support frame 10 as a whole is small, which is convenient to carry. It can be understood that, without considering the compact structure and convenient carrying, the mounting groove 131 can also be not provided. As long as the support frame 10 includes the seat 100 and the reset member 500, all solutions should be protected.

[0054] refer to Figure 5 and Figure 6It should be noted that, in the present embodiment, the reset member 500 is an elastic member 510, which is arranged between the adapter 140 and the movable ring 400, and the adapter 140 is provided with a limiting groove 141, which is arranged at intervals along the circumference of the adapter 140, and the movable ring 400 is provided with a support plate 430 and a boss 440, which are both arranged on the inner side wall of the limiting block 410, and the boss 440 is arranged at one end of the support plate 430 away from the support end 220 along the direction of the support frame 10, and the opposite ends of the elastic member 510 are elastically abutted against the bottom of the limiting groove 141 and the support plate 430, and are sleeved on the outer side of the boss 440. The movable ring 400 is manipulated to move upward along the height direction of the support frame 10, the elastic member 510 accumulates elastic force, the support leg 200 is rotated until the support leg 200 is in a folded state, the elastic force of the elastic member 510 is released, and the elastic member 510 pushes the movable ring 400 to return to the position before being manipulated.

[0055] It should be noted that, in other embodiments, the reset member 500 is a magnetic component, which includes a first magnetic component and a second magnetic component. The first magnetic component is arranged at one end of the movable ring 400 close to the support end 220 along the height direction of the support frame 10, and the second magnetic component is arranged at one end of the adapter 140 close to the support end 220 along the height direction of the support frame 10. The first magnetic component and the second magnetic component have the same magnetic properties, and the magnetic component can push the movable ring 400 to move to a position when it is not controlled.

[0056] refer to Figure 1 and Figure 6 The seat body 100 is provided with a step surface 110, and the step surface 110 extends along the circumference of the seat body 100. The radial dimension of the end of the seat body 100 close to the leg 200 is smaller than the radial dimension of the end of the seat body 100 away from the leg 200. When the movable ring 400 moves upward until the movable ring 400 abuts against the step surface 110, the movable ring 400 cannot continue to move upward, and the leg 200 is unfolded to the maximum unfolding angle, which can fix the maximum unfolding angle of the leg 200 and prevent the leg 200 from driving the movable ring 400 away from the seat body 100 during the unfolding process. It can be understood that the step surface 110 may not be provided, and all solutions in which the movable ring 400 can move along the height direction of the support frame 10 should be protected.

[0057] Continue to refer Figure 1 and Figure 6Specifically, the inclined block 411 is also provided with a contact surface 413, and the movable ring 400 moves upward, and the movable ring 400 releases the restriction on the support leg 200, and the support leg 200 can drive the inclined block 411 to move upward along the height direction of the support frame 10 until the contact surface 413 contacts the step surface 110, and the support leg 200 can no longer move upward along the height direction of the support frame 10, and the support leg 200 is unfolded to the maximum unfolding angle, and the extension direction of the second inclined surface 213 is perpendicular to the height direction of the support frame 10; or, when the support frame 10 in a semi-expanded state is placed on the support surface, the support leg 200 can drive the inclined block 411 to move upward, and when the contact surface 413 contacts the step surface 110, the support leg 200 can no longer move upward along the height direction of the support frame 10. By providing the abutting surface 413, when the movable ring 400 moves upward along the height direction of the support frame 10 until the abutting surface 413 abuts against the step surface 110, the maximum deployment angle of the support leg 200 is fixed, and the support leg 200 can be prevented from driving the movable ring 400 away from the base 100 during the deployment process. It can be understood that the abutting surface 413 may not be provided, and any solution in which the movable ring 400 can move along the height direction of the support frame 10 should be protected.

[0058] refer to Figure 1 Each leg 200 is provided with grooves 230 on both sides of the circumference of the base 100. When each leg 200 is in a folded state, any two adjacent grooves 230 along the circumference of the base 100 enclose a sunken avoidance groove 231. When the leg 200 is folded, the reset member 500 pushes the movable ring 400, and the movable ring 400 restricts the leg 200 from rotating relative to the base 100 and unfolding. There will be a clamping force between the two adjacent legs 200. By setting the avoidance groove 231, the user's fingers and palms cannot directly contact the gap between the two adjacent legs 200, effectively preventing the user's hands from being clamped by the two adjacent legs 200 during the folding process of the leg 200. It can be understood that, without considering the hand pinching prevention, the groove 230 and the avoidance groove 231 may not be provided. As long as the user can manipulate the leg 200, all solutions that enable the leg 200 to be folded should be protected.

[0059] When using the support frame 10, the user first installs the shooting equipment on the adapter 140, and then moves the movable ring 400 up in the height direction of the support frame 10. The movable ring 400 releases the restriction on the rotation of the rotating end 210. The rotating end 210 rotates relative to the base body 100 under the action of the torsion spring 300 and automatically unfolds. The user releases the movable ring 400, and the movable ring 400 moves along the height direction of the support frame 10 and switches to a semi-expanded state. At this time, the user places the support frame 10 on the supporting surface. Under the action of gravity, the legs 200 of the support frame 10 continue to unfold relative to the base body 100 and switch to the maximum unfolding angle. The user can then use the support frame 10 to take pictures.

[0060] After using the support frame 10, the user first picks up the support frame 10 and leaves the supporting surface. The support frame 10 automatically switches to a semi-expanded state under the action of the reset member 500. The user detaches the shooting device from the adapter 140. At this time, the user moves the movable ring 400 upward again to make the long diameter section 212 disengage from the limit block 410. The user rotates the leg 200 to make the leg 200 in a folded state. The movable ring 400 automatically returns to the position before being manipulated under the action of the reset member 500. The movable ring 400 limits the rotation of the leg 200 relative to the seat body 100. At this time, the storage of the support frame 10 is completed.

[0061] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A support frame, characterized in that: include: seat body; At least two legs, each of the legs having a rotating end and a supporting end located at two opposite ends in the length direction thereof, the rotating end being rotatably connected to the base; Torsion springs, the number of which corresponds to the number of the legs, the torsion springs connecting the seat body and the rotating end; A movable ring is sleeved on the outer sides of the seat body and the supporting legs, and the movable ring can move along the height direction of the support frame to restrict or release the restriction on the rotation of the rotating end; A reset member is arranged between the seat body and the movable ring. When the legs are folded, the reset member drives the movable ring to move downward, and the movable ring locks the legs.

2. The support frame according to claim 1, characterized in that: A protruding limit block is provided at the bottom of the movable ring. There are multiple limit blocks, which are arranged at intervals along the circumference of the movable ring. An avoidance gap is formed between two adjacent limit blocks. The avoidance gap corresponds to the number of the legs to allow the legs to rotate and unfold.

3. The support frame according to claim 2, characterized in that: The rotating end of each leg includes a short diameter section and a long diameter section located between the short diameter section and the supporting end. When the leg is unfolded or folded, the avoidance gap allows the short diameter section to pass through; the circumferential width of the long diameter section is greater than the circumferential width of the avoidance gap. After the leg is unfolded, the long diameter section abuts against the outer wall of the limit block to maintain it in a semi-expanded state.

4. The support frame according to claim 3, characterized in that: The inner side wall of the limit block is provided with multiple inclined blocks, and the multiple inclined blocks are arranged at intervals along the circumference of the movable ring, the number of the inclined blocks is adapted to the number of the legs, the inclined block is provided with a first inclined surface, the distance from the first inclined surface to the central axis of the support frame decreases from the side close to the support end to the side away from the support end, the short diameter section is provided with a second inclined surface, when the leg is in a folded state, the distance from the second inclined surface to the central axis of the support frame decreases from the side close to the long diameter section to the side away from the long diameter section, and the movable ring moves downward along the height direction of the support frame until the first inclined surface abuts against the second inclined surface.

5. The support frame according to claim 4, characterized in that: The support frame further includes a silicone pad, and the silicone pad is arranged on the first inclined surface and / or the second inclined surface.

6. The support frame according to claim 3, characterized in that: The side wall of the seat body is provided with a receiving groove, and the rotating end is installed in the receiving groove. The shape of the receiving groove is adapted to the shape of the support leg. The two opposite side walls of the receiving groove are both provided with limiting protrusions. When the rotating end is rotated until the extension direction of the support leg is parallel to the height direction of the support frame, the rotating end abuts against the limiting protrusion to limit the support leg from continuing to rotate relative to the seat body.

7. The support frame according to claim 6, characterized in that: The seat body includes a main body and an adapter seat, the opposite ends of the main body are respectively connected to the adapter seat and the support leg, the main body is provided with a mounting groove, the mounting groove and the accommodating groove are arranged at intervals along the circumference of the main body, the reset member is accommodated in the mounting groove, and the adapter seat is used to install the shooting equipment.

8. The support frame according to claim 7, characterized in that: The reset member is an elastic member, which is arranged between the adapter seat and the movable ring. The adapter seat is provided with a limiting groove, and the limiting groove is arranged at intervals along the circumference of the adapter seat. The movable ring is provided with a support plate and a boss, and the support plate and the boss are both arranged on the inner side wall of the limiting block. The boss is arranged at one end of the support plate away from the supporting end along the height direction of the support frame. The opposite two ends of the elastic member are elastically contacted with the bottom of the limiting groove and the support plate, and are sleeved on the outer side of the boss.

9. The support frame according to claim 1, characterized in that: The seat body is provided with a step surface, and the step surface extends along the circumference of the seat body. The radial dimension of the seat body at one end close to the support leg is smaller than the radial dimension of the seat body at one end away from the support leg.

10. The support frame according to claim 1, characterized in that: Each of the legs is provided with grooves on both side edges along the circumference of the seat body. When each of the legs is in a folded state, any two adjacent grooves along the circumference of the seat body are enclosed to form a sunken avoidance groove.

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