CN220792684U - Supporting frame - Google Patents

Abstract

The utility model relates to a support frame, which comprises a seat body, a plurality of supporting legs and a sleeve; the support legs are rotatably connected to the seat body and can be unfolded relative to the seat body; the sleeve is rotationally connected to the seat body along the circumferential direction of the seat body; the sleeve can rotate along the circumferential direction of the seat body so as to switch between a locking position and a releasing position; when the sleeve is in a locking position, the plurality of supporting legs are in a mutually closed state, and the expansion of the supporting legs relative to the seat body is limited by the sleeve; when the sleeve is switched from the locking position to the releasing position, the sleeve releases the limitation of the expansion of the supporting legs, and the rotation of the supporting legs relative to the seat body is triggered to automatically switch to the expansion state. According to the support frame provided by the utility model, only the sleeve is required to be rotated, so that the sleeve is switched from the locking position to the releasing position, the automatic rotation of the plurality of support legs relative to the seat body is triggered to be unfolded, the support legs do not need to be opened one by one and are fixed one by a user, the operation is convenient, the one-key triggering is realized, and the user experience is good.

Description

Supporting frame

Technical Field

The utility model relates to the field of photographic accessories, in particular to a supporting frame.

Background

As more people enjoy photography, people often borrow the help of a bracket in order to achieve certain photographic effects. Three legs of a tripod in the prior art need to be opened one by one, then the angle of each leg is adjusted, and then the angle of each leg is locked one by one. For example, chinese patent document CN214405417U discloses a desktop tripod, and when the tripod is used, a user needs to unscrew three groups of fixing screws respectively by hand, then swing adjustment is performed on three groups of supporting legs, and after adjustment is completed, the three groups of fixing screws are screwed respectively by hand, so that the tripod can be used, and the operation is troublesome, and the user experience is poor.

Disclosure of Invention

The utility model provides a support frame to solve the problems that when a tripod is used, support legs are required to be opened one by one and fixed one by one, and the operation is troublesome.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a support stand, comprising:

a base;

the support legs are rotatably connected to the seat body and can be unfolded relative to the seat body;

the sleeve is rotationally connected with the seat body along the circumferential direction of the seat body;

wherein the sleeve can rotate along the circumferential direction of the seat body so as to switch the sleeve between a locking position and a releasing position; when the sleeve is in the locking position, the supporting legs are in a mutually closed state, and the expansion of the supporting legs relative to the seat body is limited by the sleeve; when the sleeve is switched from the locking position to the releasing position, the sleeve releases the limitation of the expansion of the supporting legs, and the rotation of the supporting legs relative to the seat body is triggered to automatically switch to the expansion state.

In one embodiment, the side wall of the sleeve is provided with avoidance notches, the avoidance notches are formed in a plurality of circumferential directions of the sleeve, the number of the avoidance notches is matched with the number of the supporting legs, the supporting legs are connected to one end of the base body and provided with rotating parts, when the rotating parts are aligned with the avoidance notches, the restriction of the sleeve on the supporting legs is relieved, the sleeve is located at the release position, and the supporting legs can be automatically unfolded relative to the base body.

In one embodiment, the support frame further comprises an adapter seat, the adapter seat is arranged at one end of the seat body, which is far away from the supporting leg, the adapter seat and the seat body form a movable space, and the sleeve is clamped in the movable space.

In one embodiment, one of the end of the housing remote from the leg and the inner wall of the sleeve is provided with a projection, the other is provided with a rotation groove, the projection is accommodated in the rotation groove, and the projection can rotate from one end of the rotation groove to the other end of the rotation groove so as to switch the sleeve between the locking position and the releasing position.

In one embodiment, the support frame further comprises an elastic piece, wherein the elastic piece is accommodated in the rotating groove, and two opposite ends of the elastic piece are respectively abutted against the protrusion and the groove wall of the rotating groove;

when the sleeve is switched from the locking position to the releasing position, the elastic piece is compressed/stretched by the bulge to accumulate elastic force; when the supporting legs are pulled to be restored to the mutually closed state, the elastic piece releases elastic force to push the protrusion to rotate along the circumferential direction of the seat body, so that the sleeve is switched from the release position to the locking position.

In one embodiment, the protrusions and the rotating grooves are all arranged in a plurality along the circumferential direction of the seat body, and the number of the rotating grooves and the number of the protrusions are matched with the number of the supporting legs.

In one embodiment, the rotating part is provided with a rotating shaft, and the rotating part is rotatably connected to the seat body through the rotating shaft, and can rotate around the rotating shaft relative to the seat body; the rotating part further comprises a torsion spring, the torsion spring is sleeved on the rotating shaft, and the torsion spring can provide elastic force for the supporting legs so as to drive the supporting legs to be automatically unfolded relative to the seat body.

In one embodiment, the rotating portion is provided with a first moving groove, one end of the base body, which is close to the supporting leg, is provided with a second moving groove, opposite ends of the torsion spring are respectively located in the first moving groove and the second moving groove, and when the supporting leg is automatically unfolded relative to the base body, opposite ends of the torsion spring move along groove walls of the first moving groove and the second moving groove.

In one embodiment, the side wall of the base is provided with a containing groove, the rotating shaft and the torsion spring are contained in the containing groove, the rotating part is installed in the containing groove, and the shape of the containing groove is matched with that of the supporting leg.

In one embodiment, two opposite groove walls of the accommodating groove are provided with hanging holes, and two opposite ends of the rotating shaft along the axial direction can be placed in the two hanging holes, so that the supporting legs can rotate relative to the seat body.

In one embodiment, when the support leg is unfolded, the rotating part abuts against the groove wall of the accommodating groove, so that the support leg is limited to be unfolded continuously relative to the seat body.

As can be seen from the technical scheme, the embodiment of the utility model has at least the following advantages and positive effects:

the supporting frame comprises the base body, the supporting legs and the sleeve, the sleeve can rotate relative to the circumferential direction of the base body, the supporting frame is used, the sleeve only needs to be rotated, the sleeve is switched from the locking position to the releasing position, the supporting legs are triggered to be unfolded relative to the base body, a user does not need to open the supporting legs one by one and fix the supporting legs one by one, the operation is convenient, one-key triggering is achieved, and the user experience is good.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the overall structure of a sleeve of a support frame in a locked position according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the overall structure of the sleeve of the stand of FIG. 1 in a release position;

FIG. 3 is a schematic view of an exploded structure of the support frame shown in FIG. 1;

FIG. 4 is a schematic view of the projection, rotation slot and resilient member of the sleeve of FIG. 1 in a locked position;

FIG. 5 is a schematic view of the projection and the rotation slot of the sleeve of FIG. 1 in a released position;

FIG. 6 is a schematic view of the seat and sleeve of FIG. 1;

FIG. 7 is a schematic view of the leg shown in FIG. 1;

fig. 8 is a schematic view of the structure of the hanging hole, the receiving groove and the second moving groove shown in fig. 1.

The reference numerals are explained as follows:

10. a support frame; 100. a base; 110. a rotating groove; 120. a receiving groove; 121. a hanging hole; 130. a second moving groove; 200. a support leg; 210. a rotating part; 211. a rotating shaft; 212. a torsion spring; 213. a first moving groove; 300. a sleeve; 310. avoiding the notch; 320. a protrusion; 400. an adapter; 500. an elastic member.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1, the present utility model provides a support frame 10 for supporting a photographing apparatus, so as to prevent the photographing apparatus from shaking to affect the photographing effect when a user uses the photographing apparatus. Using the support frame 10 to shoot, the user can twist sleeve 300 alright open whole landing leg 200, and can realize the angle that fixed landing leg 200 was expanded, need not open a plurality of landing legs 200 one by one, then lock one by one, convenient operation. The shooting device is an electronic device such as a mobile phone and a camera.

Referring to fig. 2 and 3, the support frame 10 includes a base 100, a plurality of legs 200, and a sleeve 300, the plurality of legs 200 are rotatably connected to the base 100, and the plurality of legs 200 can be unfolded with respect to the base 100; the sleeve 300 is rotatably coupled to the base 100 in the circumferential direction of the base 100. The sleeve 300 is rotated along the circumferential direction of the base 100, the plurality of supporting legs 200 are automatically unfolded by being triggered to rotate relative to the base 100, the plurality of supporting legs 200 are opened by one-time operation, a user can shoot the instant when the user is just in the short time, various requirements of the user are met, the operation is convenient, and the efficiency is improved.

Wherein, the sleeve 300 rotates along the circumferential direction of the seat body 100, and the sleeve 300 can be switched between a locking position and a releasing position; when the sleeve 300 is in the locked position, the plurality of legs 200 are in a state of being close to each other, and the expansion of the legs 200 relative to the seat 100 is limited by the sleeve 300; when the sleeve 300 is switched from the locking position to the releasing position, the sleeve 300 releases the restriction of the expansion of the plurality of legs 200, and the rotation of the plurality of legs 200 relative to the base 100 is triggered to automatically switch to the expanded state.

By using the support frame 10, only the sleeve 300 needs to be rotated, so that the sleeve 300 is switched from the locking position to the releasing position, the automatic rotation of the plurality of support legs 200 relative to the seat body 100 is triggered to be unfolded, a user does not need to open the support legs 200 one by one and lock the support legs 200 one by one, the opening and locking of the plurality of support legs 200 can be realized by one operation, the operation is convenient, and the user experience is good.

Referring to fig. 2, in the present embodiment, the number of the legs 200 is three, and the three legs 200 are arranged along the circumferential direction of the base 100, so that when the three legs 200 are unfolded, the base 100, the sleeve 300 and the photographing apparatus can be supported on a fixed position, so as to satisfy the photographing requirement of the user. It is understood that the number of the legs 200 may be four, five, etc., so long as the legs 200 are unfolded to support the base 100, the sleeve 300, and the photographing apparatus in a fixed position, all of them should be protected.

With continued reference to fig. 1 and 2, the side wall of the sleeve 300 is provided with avoidance notches 310, the avoidance notches 310 are arranged in a plurality along the circumferential direction of the sleeve 300, the number of the avoidance notches 310 is matched with the number of the support legs 200, one end of the support legs 200 connected to the seat body 100 is provided with a rotating part 210, when the rotating part 210 is aligned with the avoidance notches 310, the restriction of the sleeve 300 on the support legs 200 is released, the sleeve 300 is located at a release position, and the support legs 200 can be automatically unfolded relative to the seat body 100. It should be understood that the avoidance notch 310 may not be provided, and the leg 200 can be automatically unfolded relative to the seat 100 if the sleeve 300 is located at the release position.

The support frame 10 further includes a adaptor 400, the adaptor 400 is disposed at one end of the base 100 away from the supporting leg 200, the adaptor 400 is used for externally connecting with a photographing device, the adaptor 400 and the base 100 form a movable space, and the sleeve 300 is clamped in the movable space. Because sleeve 300 joint is in the activity space, sleeve 300 follows the circumference rotation of pedestal 100 moreover, sleeve 300 inevitably appears wearing and tearing after using certain time and can appear the space when leading to sleeve 300 joint in the activity space, lead to sleeve 300 and pedestal 100 joint unstable, then photographic equipment of installing on the adapter 400 can appear small amplitude rocking, lead to photographic effect not good, so this embodiment sets up adapter 400 and pedestal 100 as detachable connection, can dismantle adapter 400 when sleeve 300 uses the time limit, change sleeve 300, thereby ensure the life of whole support frame 10. Of course, the adaptor 400 and the base 100 may be connected in a non-detachable manner without considering the service life, for example, the adaptor 400 and the base 100 may be formed integrally, so long as the sleeve 300 can be engaged in the movable space.

One of the end of the body 100 away from the leg 200 and the inner wall of the sleeve 300 is provided with a protrusion 320, the other is provided with a rotation groove 110, for example, fig. 4 and 5, the end of the body 100 away from the leg 200 is provided with the rotation groove 110, the inner wall of the sleeve 300 is provided with the protrusion 320, the protrusion 320 is accommodated in the rotation groove 110, and the protrusion 320 can be rotated from one end of the rotation groove 110 to the other end of the rotation groove 110 to switch the sleeve 300 between the locking position and the releasing position. It will be appreciated that the rotation groove 110 may be provided on the inner wall of the sleeve 300, and the protrusion 320 may be provided at the end of the base 100 away from the leg 200, so long as the protrusion 320 can rotate from one end of the rotation groove 110 to the other end of the rotation groove 110, so that the sleeve 300 can be switched between the locking position and the releasing position.

In an embodiment, the protrusions 320 and the rotating grooves 110 are all disposed in a plurality along the circumferential direction of the base 100, and the number of the rotating grooves 110 and the number of the protrusions 320 are matched with the number of the legs 200. The solution of providing a plurality of protrusions 320 and rotating grooves 110 has a smoother rotation and more uniform stress than the solution of providing only one protrusion 320 and rotating groove 110, i.e., the sleeve 300 and the housing 100. It will be appreciated that, without considering smooth rotation and uniform stress, only one protrusion 320 and rotation groove 110 may be provided, so long as the protrusion 320 can rotate along the rotation groove 110, all the solutions should be protected.

It should be noted that, when the number of the legs 200 is three, the number of the protrusions 320 and the number of the rotation grooves 110 are also three; when the number of the protrusions 320 and the number of the rotation grooves 110 are set to four as the number of the legs 200 is set to four, it is preferable that the number of the rotation grooves 110 and the number of the protrusions 320 are adapted to the number of the legs 200.

Referring to fig. 3 and 4, the support frame 10 further includes an elastic member 500, wherein the elastic member 500 is received in the rotation groove 110, and opposite ends of the elastic member 500 respectively abut against the protrusion 320 and a groove wall of the rotation groove 110; when the sleeve 300 is switched from the locking position to the releasing position, the elastic member 500 is compressed/stretched by the protrusion 320 to accumulate elastic force; when the legs 200 are pulled to be restored to a state of being close to each other, the restriction of the legs 200 to the rotation of the sleeve 300 with respect to the body 100 is released, and the elastic member 500 releases the elastic force to push the protrusions 320 to rotate in the circumferential direction of the body 100, so that the sleeve 300 is switched from the release position to the locking position. When the user finishes using the support frame 10, the sleeve 300 can be restored to the locking position under the pushing of the elastic force of the elastic member 500 only by pulling the plurality of support legs 200 to restore to the mutually closed state, and the support frame 10 can be stored in one step. It should be noted that, the number of the elastic members 500 is adapted to the number of the protrusions 320 or the number of the rotating grooves 110, for example, when the protrusions 320 and the rotating grooves 110 are three in fig. 4, the number of the elastic members 500 is also three. It will be appreciated that the elastic member 500 may not be provided regardless of the automatic locking of the support frame 10, so long as the sleeve 300 is switched from the release position to the locking position.

Referring to fig. 6 and 7, the rotating part 210 is provided with a rotating shaft 211, the rotating part 210 is rotatably connected to the base 100 through the rotating shaft 211, and the rotating part 210 can rotate around the rotating shaft 211 with respect to the base 100; the rotating portion 210 further includes a torsion spring 212, where the torsion spring 212 is sleeved on the rotating shaft 211, and the torsion spring 212 can provide an elastic force to the supporting leg 200 to drive the supporting leg 200 to be automatically unfolded relative to the base 100. Through setting up torsional spring 212, so when making sleeve 300 be in the release position, torsional spring 212 drives landing leg 200 and opens relative pedestal 100 is automatic, and the user need not additionally open landing leg 200 when using support frame 10, only need with sleeve 300 switch to the release position from the locking position can, has reduced operation, easy operation. It will be appreciated that the torsion spring 212 may not be provided in the case where the plurality of legs 200 may be automatically deployed, so long as the deployment of the legs 200 with respect to the base 100 is enabled.

Specifically, the side wall of the base 100 is provided with an accommodating groove 120, the rotating shaft 211 and the torsion spring 212 are accommodated in the accommodating groove 120, the rotating part 210 is installed between two opposite inner side walls of the accommodating groove 120, the number of the accommodating grooves 120 is matched with the number of the supporting legs 200, the accommodating grooves 120 are in one-to-one correspondence with the rotating shafts 211, the rotating part 210 is rotationally sleeved on the rotating shaft 211, and the shape of the accommodating groove 120 is matched with the shape of the supporting legs 200. By providing the receiving groove 120, the structure of the housing 100 is more compact, and the rotating part 210 is installed in the receiving groove 120, so that the overall structure of the support frame 10 is more attractive. It should be understood that the accommodating groove 120 may not be provided in consideration of compactness and aesthetic appearance, and should be protected as long as the rotating portion 210 can be mounted to the base 100.

Referring to fig. 6 and 7, the rotating part 210 is provided with a first moving groove 213, one end of the housing 100 adjacent to the leg 200 is provided with a second moving groove 130, opposite ends of the torsion spring 212 are respectively located in the first moving groove 213 and the second moving groove 130, and when the leg 200 is automatically unfolded with respect to the housing 100, opposite ends of the torsion spring 212 move along groove walls of the first moving groove 213 and the second moving groove 130. It should be noted that, the solution of providing the first moving slot 213 and the second moving slot 130, where the opposite ends of the torsion spring 212 move along the slot walls of the first moving slot 213 and the second moving slot 130, reduces the possibility that the torsion spring 212 shakes and causes the whole support frame 10, and the torsion spring 212 has a fixed moving track, compared with the solution that the first moving slot 213 and the second moving slot 130 are not provided, where the opposite ends of the torsion spring 212 are abutted against the slot walls of the accommodating slot 120 and the supporting leg 200. It should be understood that the first moving groove 213 and the second moving groove 130 may not be provided, and any solution where the torsion spring 212 can provide the elastic force to the leg 200 should be protected.

Referring to fig. 8, the opposite groove walls of the receiving groove 120 are provided with hanging holes 121, and opposite ends of the rotation shaft 211 in the axial direction can be placed in the two hanging holes 121 so that the leg 200 can be rotated with respect to the base 100. The side wall of the rotating shaft 211 becomes thinner due to the fact that the rotating shaft 211 is worn after being used for a certain time, so that the supporting leg 200 can shake when rotating around the rotating shaft 211 or shake can occur in the process of using the supporting frame 10, and the photographing effect is poor; or when the user uses the support frame 10, the situation that the support leg 200 needs to be replaced due to abrasion caused by collision may occur in the support frame 10, so that the hanging holes 121 are provided on the two opposite groove walls of the accommodating groove 120 in this embodiment, the rotating shaft 211 is detachably connected with the seat body 100, and the support frame can be replaced when the rotating shaft 211 is used at a certain time limit or when the support leg 200 is worn, so as to ensure the service life of the whole support frame 10. Of course, the hanging hole 121 may not be provided on the premise of not considering the service life, and the rotating shaft 211 and the base 100 may not be detachably connected, for example, the rotating shaft 211 and the base 100 may be provided as an integrally formed structure.

When the leg 200 is unfolded, the rotating portion 210 abuts against the groove wall of the accommodating groove 120, so that the leg 200 is restricted from being unfolded relative to the seat 100. When the leg 200 is unfolded, the rotating portion 210 abuts against the groove wall of the accommodating groove 120 when the angle formed between the leg 200 and the base 100 reaches the preset angle, at this time, the supporting frame 10 is the greatest extent of the unfolding, and the groove wall of the accommodating groove 120 limits the leg 200 to continue to unfold relative to the base 100, at this time, the supporting frame 10 can be stably placed on the fixed position. The fixing position is a position of the fixing support frame 10, and the fixing position may be a photographing position such as a table top, a ground, and the like.

When the support frame 10 is used, a user rotates the sleeve 300 firstly, the sleeve 300 rotates along the circumferential direction of the base body 100, the bulge 320 rotates from one end of the rotating groove 110 to the other end of the rotating groove 110, the sleeve 300 releases the limitation of the expansion of the support legs 200 when the sleeve 300 is switched from the locking position to the releasing position, the rotation of the support legs 200 on the support frame 10 relative to the base body 100 is triggered to automatically switch to the expansion state, the user places the support frame 10 on the fixed position, and then the shooting equipment is installed, so that the support frame 10 can be used for shooting required pictures; when the user finishes using the support frame 10, the user first detaches the photographing device from the support frame 10, overcomes the elastic force of the torsion spring 212, pulls the plurality of support legs 200, makes the plurality of support legs 200 in a mutually closed state, and the sleeve 300 can be restored to the locking position under the pushing of the elastic force of the elastic piece 500, so that the support frame 10 can be stored in one step. With the support stand 10, a user can perform only one operation to spread or store the plurality of legs 200 of the support stand 10.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (11)

1. A support bracket, comprising:

a base;

the support legs are rotatably connected to the seat body and can be unfolded relative to the seat body;

the sleeve is rotationally connected with the seat body along the circumferential direction of the seat body;

wherein the sleeve can rotate along the circumferential direction of the seat body so as to switch the sleeve between a locking position and a releasing position; when the sleeve is in the locking position, the supporting legs are in a mutually closed state, and the expansion of the supporting legs relative to the seat body is limited by the sleeve; when the sleeve is switched from the locking position to the releasing position, the sleeve releases the limitation of the expansion of the supporting legs, and the rotation of the supporting legs relative to the seat body is triggered to automatically switch to the expansion state.

2. The support frame of claim 1, wherein the side wall of the sleeve is provided with avoidance notches, the avoidance notches are arranged in a plurality along the circumferential direction of the sleeve, the number of the avoidance notches is matched with the number of the supporting legs, the supporting legs are connected to one end of the seat body, a rotating part is arranged at one end of the supporting legs, when the rotating part is aligned with the avoidance notches, the restriction of the sleeve on the supporting legs is relieved, the sleeve is positioned at the release position, and the supporting legs can be automatically unfolded relative to the seat body.

3. The support frame of claim 2, further comprising an adapter disposed at an end of the base away from the leg, the adapter and the base forming a movable space, the sleeve being engaged in the movable space.

4. A support as claimed in claim 3, in which one of the end of the housing remote from the leg and the inner wall of the sleeve is provided with a projection, the other being provided with a rotation slot in which the projection is received, the projection being rotatable from one end of the rotation slot to the other end of the rotation slot to switch the sleeve between the locking and release positions.

5. The support frame of claim 4, further comprising an elastic member received in the rotation groove, opposite ends of the elastic member respectively abutting against the protrusion and a groove wall of the rotation groove;

when the sleeve is switched from the locking position to the releasing position, the elastic piece is compressed/stretched by the bulge to accumulate elastic force; when the supporting legs are pulled to be restored to the mutually closed state, the elastic piece releases elastic force to push the protrusion to rotate along the circumferential direction of the seat body, so that the sleeve is switched from the release position to the locking position.

6. The support frame of claim 4, wherein the protrusions and the rotating grooves are arranged in a plurality along the circumferential direction of the base body, and the number of the rotating grooves and the number of the protrusions are matched with the number of the supporting legs.

7. The support frame according to claim 2, wherein the rotating portion is provided with a rotating shaft, the rotating portion is rotatably connected to the base body through the rotating shaft, and the rotating portion can rotate around the rotating shaft relative to the base body; the rotating part further comprises a torsion spring, the torsion spring is sleeved on the rotating shaft, and the torsion spring can provide elastic force for the supporting legs so as to drive the supporting legs to be automatically unfolded relative to the seat body.

8. The support frame of claim 7, wherein the rotating portion is provided with a first moving groove, one end of the base body adjacent to the supporting leg is provided with a second moving groove, opposite ends of the torsion spring are respectively located in the first moving groove and the second moving groove, and when the supporting leg is automatically unfolded relative to the base body, opposite ends of the torsion spring move along groove walls of the first moving groove and the second moving groove.

9. The support frame of claim 7, wherein the side wall of the base is provided with a receiving groove, the rotating shaft and the torsion spring are received in the receiving groove, the rotating portion is mounted in the receiving groove, and the shape of the receiving groove is adapted to the shape of the leg.

10. The support frame of claim 9, wherein two opposite groove walls of the accommodating groove are provided with hanging holes, and two opposite ends of the rotating shaft along the axial direction can be placed in the two hanging holes so that the supporting leg can rotate relative to the seat body.

11. The support of claim 9, wherein the pivoting portion abuts a wall of the receiving slot when the leg is deployed so as to limit continued deployment of the leg relative to the base.