CN218845642U

CN218845642U - Photographic support

Info

Publication number: CN218845642U
Application number: CN202222914925.XU
Authority: CN
Inventors: 邹青青; 潘若昱; 夏建雄; 覃帅
Original assignee: Shenzhen Weiji Technology Co ltd
Current assignee: Shenzhen Weiji Technology Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-04-11
Anticipated expiration: 2032-11-02

Abstract

The utility model relates to a photographic support, which comprises a central tube, a first end and a second end, wherein the first end and the second end are arranged along the axial direction; the supporting foot stand comprises a sliding part, a plurality of supporting legs and a first elastic part, and the first elastic part is connected with the sliding part; the slider is movable along the center tube to place the legs in a folded condition at the first end and in an unfolded condition at the second end; the locking assembly comprises a first locking piece and a second locking piece, the first locking piece is positioned on the central pipe, and the second locking piece is arranged on the supporting foot rest; when the folding state is realized, the first locking piece enables the supporting foot stool and the central tube to be relatively fixed, and enables the first elastic piece to accumulate elastic force; the second locking part can drive the first locking part to retract towards the central pipe, so that the first elastic part can release elastic force to drive the supporting legs to unfold. The utility model discloses can realize that a key is opened from the state of accomodating with the camera support, open and fold and all can realize that the pull carries out the synchronous positioning, it is more convenient to use.

Description

Photographic support

Technical Field

The utility model relates to a photographic accessory technical field especially relates to a photographic support.

Background

The camera has gradually become popular in people's daily life, people like to shoot the beautiful things found in nature, when utilizing the camera to shoot the telephoto lens, sometimes need shoot many hours in succession, because of environmental reasons, generally can put the camera on the camera support in order to guarantee the stability and the quality of shooting, current collapsible tripod of accomodating, need manually expand into required angle with a plurality of stabilizer blades for the objective table when using, the tripod is inwards folded and is needed manual once more operation and easily press from both sides the finger, difficult synchronous positioning. Publication No. CN112594516A discloses a camera support can open and can accomodate through the mode of pull by a key, but its spare part is more and the equipment is complicated, has improved the cost, the utility model discloses a device that can solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a photographic support to solve photographic support and expand and fold inconvenient problem.

In order to solve the technical problem, the utility model provides a photography support, include:

a center tube having a first end and a second end arranged in an axial direction;

the supporting foot frame comprises a sliding part, a plurality of supporting legs and a first elastic part, wherein the supporting legs are rotatably connected to the sliding part, and the first elastic part is connected with the sliding part; the slider is movable in the axial direction of the center tube at the first end and the second end to place the legs in a folded state at the first end and to place the legs in an unfolded state at the second end;

the locking assembly comprises a first locking piece and a second locking piece, the first locking piece is arranged on the central pipe, and the second locking piece is arranged on the supporting foot frame; when the folding state is carried out, the first locking part extends out of the central tube to enable the supporting foot stool and the central tube to be kept relatively fixed, and the first elastic part accumulates elastic force; the second locking piece can drive the first locking piece to retract towards the central pipe, so that the first elastic piece can release elastic force to drive the supporting legs to unfold.

In one embodiment, the first elastic element is positioned on one side of the sliding element, which faces away from the leg, and a convex block is arranged on the central tube at a position close to the first end; in the folded state, the first elastic member is in a state of being compressed between the projection and the slider.

In one embodiment, the photographic support further comprises a traction piece, one end of the traction piece is connected with the sliding piece to form a clamping position, and the second locking piece is movably arranged at the clamping position; the traction piece can drive the sliding piece to slide along the axial direction, so that the first locking piece can automatically stretch into the clamping position when the clamping position is aligned.

In one embodiment, the traction element is of a tubular structure, and the traction element is sleeved on the central pipe and encloses the central pipe to form a containing space; the first elastic piece is located in the containing space and can accumulate and release elastic force along with the driving of the traction piece.

In one embodiment, the first locking element comprises a central element and a second elastic element, and when the first locking element is aligned with the clamping position, the central element can extend out of the central tube and be clamped in the clamping position under the action of the elastic force of the second elastic element; under folded state, the second locking part can be pressed in order to drive the centre piece to the centre tube is retracted, the centre piece breaks away from the joint position, first elastic component release elastic force drives the landing leg expandes.

In one embodiment, at least one of the traction member and the protruding end of the center member is provided with an inclined surface, the sliding member interferes with the protruding end of the center member during the process of moving from the second end to the first end along the axial direction of the center tube, the center member is pressed by the inclined surface to retract into the center tube, and when the center member is aligned with the clamping position, the center member protrudes out of the center tube under the elastic force of the second elastic member and is clamped in the clamping position.

In one embodiment, the central tube is provided with a first through hole and a second through hole, the first through hole is used for the extending end of the central element to pass through, and the second through hole is used for the end of the central element far away from the extending end to pass through; a boss is arranged on one side, close to the first through hole, of the central piece, and the side, close to the first through hole, of the central piece is positioned in the central tube; one end of the second elastic piece abuts against the boss, the other end of the second elastic piece abuts against the periphery of the second through hole in the central tube, when the extending end of the central piece is extruded and retracted, the second elastic piece accumulates elastic force, and the extending end of the central piece can extend out of the central tube again under the elastic force of the second elastic piece.

In one embodiment, the central tube is further provided with an arc-shaped strip which is positioned inside the central tube and occupies part of the length of the central tube, the second through hole is formed in the arc-shaped strip, and the first locking piece can be installed into the central tube through the arc-shaped strip.

In one embodiment, the central tube includes a first tube and a second tube, the first locking structure is disposed on the first tube and can extend out of the first tube, the second tube is located inside the first tube, and the second tube can extend out of or be received in the central tube.

In one embodiment, the supporting foot rest further comprises connecting rods, the number of the connecting rods is equal to that of the supporting legs, two ends of each connecting rod are respectively and rotatably connected to the central tube and the corresponding supporting leg, the supporting legs are arranged in an arc-shaped strip shape and form a tube cylinder in a folded state, and the supporting legs can close the central tube and the connecting rods on the inner sides of the supporting legs in the folded state.

According to the above technical scheme, the embodiment of the utility model provides an at least, following advantage and positive effect have:

in the embodiment of this application, the camera support can control relative slip between center tube and the supporting leg frame through the pull of people's hand, thereby the expansion and the closure of control landing leg, first locking piece makes the camera support fixed at the state of accomodating, the elastic force of first elastic component is accumulated under the state of accomodating simultaneously, when needs expand the camera support, only need operate the second locking piece, the fixed action of first locking piece can be released to the second locking piece, make the camera support expand automatically under the effect of first elastic force, other steps have been removed from, make the folding of camera support all more convenient with the expansion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the camera stand according to an embodiment of the present invention;

FIG. 2 is a schematic view of the camera support of FIG. 1 in an expanded configuration;

FIG. 3 is an enlarged sectional view of the camera stand of FIG. 1;

fig. 4 is an exploded view of the camera bracket of fig. 2.

The reference numerals are illustrated below:

a camera support 10; a center tube 100; a support stand 200; a locking assembly 300; a first end 110; a second end 120; a slider 210; a leg 220; the first elastic member 230; a first locking element 310; a second locking element 320; a first tube 130; a second tube 140; a bump 111; a traction member 400; an accommodating space 410; a clamping position 211; a center piece 311; a second elastic member 312; an extended end 313; a bevel 314; a step 212; a key 321; a first through-hole 150; a second through hole 160; a boss 315; an arc-shaped bar 170; a thickened region 171; a connecting rod 240;

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments, and its several details are capable of modification in various other respects, all without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

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

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

Referring to fig. 1, the present invention provides a photography stand 10 for installing a photographing apparatus, the photographing apparatus can be, but is not limited to, a camera or a mobile phone, the photography stand 10 can be drawn by a human hand to realize folding and unfolding of the photography stand 10, and referring to fig. 1, when the photography stand 10 is in a folded state, the photography stand 10 can be held by a single hand and is convenient to store. Referring to fig. 2, the stand 10 may support the photographing apparatus on a flat or uneven table top and floor when the stand 10 is in the unfolded state.

Referring to fig. 2 and 3, the camera stand 10 includes a center tube 100, a support stand 200, and a locking assembly 300, the center tube 100 having a first end 110 and a second end 120 arranged in an axial direction, the first end 110 being understood as an end for mounting a photographing apparatus, and the second end 120 being understood as an end facing or close to the ground and a table top. The supporting leg 200 can move at the first end 110 and the second end 120 in the axial direction of the central tube 100 so that the supporting leg 200 can be in a folded state at the first end 110 and the supporting leg 200 can be in an unfolded state at the second end 120, the locking assembly 300 serves to maintain the relative fixation of the supporting leg 200 to the central tube 100 in the folded state, and the locking assembly 300 also can release the relative fixation of the supporting leg 200 to the central tube 100 so that the supporting leg 200 can be unfolded.

The top of center tube 100 is the position that supplies the installation of shooting equipment, and the top of center tube 100 can set up the mount pad that has the fast-assembling structure, and the fast-assembling structure can include at least one in cold boot mouth, cloud platform, threaded shaft, the screw hole, and center 100 can be through the fast-assembling structure installation photographic accessories that sets up on the mount pad, and the material of center tube 100 can but is not limited to alloy, stainless steel, plastics etc.. The central tube 100 is provided as a hollow structure which on the one hand reduces the weight of the camera support and on the other hand accommodates other parts of the camera support. In an embodiment, the central tube 100 includes a first tube 130 and a second tube 140, the second tube 140 is located inside the first tube 130 and can be extended out or received in the central tube 100, and a user can adjust the extension and contraction of the second tube 140 in the first tube 130 to adjust the height of the central tube 100 according to the shooting requirement.

The supporting leg frame 200 comprises a sliding member 210, a plurality of legs 220, and a first elastic member 230, wherein the plurality of legs 220 are rotatably connected to the sliding member 210, and the sliding member 210 can move between the first end 110 and the second end 120 along the axial direction of the central tube 110 to drive the legs 220 to be in a folded state at the first end 110 and to be in an unfolded state at the second end 120. The first elastic member 230 is connected to the sliding member 210, the first elastic member 230 can accumulate elastic force in a folded state, fig. 3 illustrates that the first elastic member 230 is located on a side of the sliding member 210 opposite to the leg 220, the central tube 100 is provided with a protrusion 111 near the first end 110, in the folded state, the first elastic member 230 is in a state of being compressed between the protrusion 111 and the sliding member 210, and the protrusion 111 serves as a stopper provided near the first end 110 of the central tube 100, and functions to stop the first elastic member 230 and press the first elastic member 230 when the first elastic member 230 moves nearby, and in other embodiments, the protrusion 111 may be provided as another stopper. It should be understood that, in other embodiments, the first elastic member 230 may also be disposed on the side of the sliding member 210 facing the leg 220, wherein one end of the first elastic member 230 is fixedly connected to the sliding member 210 and the other end is fixedly connected to the center tube 100, and the first elastic member 230 in a folded state is stretched to accumulate the elastic force.

It should be noted that the first elastic element 230 may be disposed inside the central tube 100 or around the outside of the central tube 100, and fig. 3 illustrates that the first elastic element 230 is a spring sleeved on the central tube 100, and it is understood that the first elastic element 230 may also be an elastic sheet or an elastic pad disposed on the central tube 100. In addition, the number of the first elastic members 230 may be provided as one or a plurality of circumferentially spaced apart.

In one embodiment, the sliding member 210 is a cylindrical ring with an inner diameter slightly larger than the outer diameter of the central tube 100 and is sleeved outside the central tube 100, and in other embodiments, the sliding member 210 may be provided with a sliding block extending into the central tube 100, the central tube 100 is provided with a track, and the sliding member 210 moves along the track through the sliding block. In order to facilitate the drawing of the camera support by a human hand, the camera support 10 is further provided with a traction element 400, the traction element 400 is connected with the sliding element 210, the traction element 400 can drive the sliding element 210 to slide along the axial direction of the central tube 100, in an embodiment, the traction element 400 is in a tubular structure, the traction element 400 is sleeved on the central tube 100 and encloses with the central tube 100 to form an accommodating space 410, and the first elastic element 230 is located in the accommodating space 410 and can accumulate and release elastic force along with the driving of the traction element 400, it can be understood that in other embodiments, the traction element 400 can also be a handle or other structures which are convenient for the human hand to operate.

The locking assembly 300 can keep the sliding member 210 and the center tube 100 relatively fixed in the folded state, and at the same time, the first elastic member 230 is in the state of being fixed and accumulating the elastic force, and when the photographing bracket needs to be unfolded, the locking assembly 300 can also release the relative fixing of the sliding member 210 and the center tube 100, so that the sliding member 210 can slide under the action of the elastic force released by the first elastic member 230 and drive the leg 220 to be unfolded.

The locking assembly 300 comprises a first locking member 310 and a second locking member 320, the first locking member 310 is disposed on the central tube 100, the second locking member 320 is disposed on the support leg 200, in a folded state, the first locking member 310 extends out of the central tube 100 to keep the support leg 200 fixed relative to the central tube 100, in an embodiment, one end of the pulling member 400 is connected to the sliding member 210 to form a clamping position 211, and the first locking member 310 extends out of the central tube 100 and into the clamping position 211 to keep the support leg 200 fixed relative to the central tube 100. The second locking member 320 is movably disposed at the clamping position 211, the second locking member 320 can be pressed to drive the first locking member 310 to retract into the central tube 100, the first locking member 310 is separated from the clamping position 211, and the first elastic member 230 releases the elastic force to drive the supporting leg 220 to unfold.

Fig. 3 illustrates that the clamping position 211 is a step 212 formed between the sliding member 210 and the pulling member 400, the second locking member 320 is a button 321 movably disposed on the clamping position 211, the first locking member 310 extends into the clamping position 211 and abuts against the button 321, and the step 212 interferes with the first locking member 310 to block the sliding of the sliding member 210, so that the stand 200 and the central tube 100 are relatively fixed, when the photo frame 10 needs to be unfolded, the button 321 is pressed to drive the first locking member 310 to retract, so that the first locking member 310 can be separated from the clamping position 211, and the first elastic member 230 releases the elastic force to drive the sliding member 210 to slide relative to the central tube 100 and drive the supporting leg 220 to be unfolded. The second locking element 320 functions to retract the first locking element 310 into the central tube 100, and in other embodiments, the second locking element 320 may be a pull ring or the like that pulls the first locking element 310 in the opposite direction, and the locking position 211 may be a locking groove or other structures that can fix the first locking element 310.

To sum up, the utility model provides a photography support 10 can install the shooting equipment, and the shooting equipment can nevertheless be injectd to camera or cell-phone, and photography support 10 can carry out the pull through the staff to realize photography support 10's folding and expansion, when photography support 10 was in fold condition, photography support 10 can be held by the one hand and convenient storage. When the camera stand 10 is in the unfolded state, the camera stand 10 can support the photographing apparatus on a flat or uneven table top and floor.

Referring to fig. 3 and 4, the first locking member 310 includes a center member 311 and a second elastic member 312, the center member 311 extends out of the center tube 100 by the elastic force of the second elastic member 312, the second elastic member 312 accumulates the elastic force when the center member 311 is pressed inward toward the center tube 100, and after the pressing is released, the center member 311 can be re-extended out of the center tube 100 by the elastic force of the second elastic member 312. At least one of the pulling member 400 and the protruding end 313 of the central member 311 is provided with a slope 314, the pulling member 400 interferes with the protruding end 313 of the central member 311 during the process that the sliding member 210 moves from the second end 120 to the first end 110 along the axial direction of the central tube 100, the central member 311 is pressed to retract into the central tube 100 through the slope 314, when the central member 311 is aligned with the clamping position 211, the central member 311 can protrude out of the central tube 100 and be clamped in the clamping position 211 under the elastic force of the second elastic member 312, fig. 3 illustrates that the slope 314 is provided on the protruding end 313 of the central member 311, in other embodiments, the slope 314 may also be provided on the pulling member 400, or the slope 314 is provided on both the pulling member 400 and the protruding end of the central member 311.

In one embodiment, the first locking member 310 is installed inside the center tube 100, the center tube 100 is provided with a first through hole 150 and a second through hole 160, the first through hole 150 is used for the extending end 313 of the center element 311 to pass through, the second through hole 160 is used for the end of the center element 311 far from the extending end 313 to pass through, the extending end 313 of the center element 311 extends or retracts in the first through hole 150, the other end of the center element is also stretched in the second through hole 160, the second through hole 160 provides a space for the center element 311 to stretch in the center tube 100, and in other embodiments, the second through hole 160 may only be provided as a groove that does not penetrate through the center tube 100. The central member 311 is disposed inside the central tube 100 and on a side close to the first through hole 150, the boss 315 is disposed at one end of the second elastic member 312, the boss 315 abuts against the other end of the second elastic member 312, the second elastic member 312 abuts against the periphery of the second through hole 160 of the central tube 100, when the central member 311 is pressed and retracted, the second elastic member 312 is compressed by the boss 315 and accumulates elastic force, and the central member 311 can be stretched out of the central tube 100 again by the boss 315 under the elastic force of the second elastic member 312. In other embodiments, the second elastic member 312 may also accumulate elastic force by being stretched, in which case, two ends of the second elastic member 312 are fixedly connected to the bosses 315 and the periphery of the first through hole 150, respectively. The second elastic element 312 may surround the outside of the central element 311 or be disposed inside the central element 311, and fig. 3 illustrates that the second elastic element 312 is a spring sleeved on the central element 311, it can be understood that the second elastic element 312 may also be an elastic sheet or an elastic pad disposed on the central element 311. In addition, the number of the second elastic members 312 may be set to one or a plurality of circumferentially spaced.

With continued reference to FIG. 4, the base pipe 100 is further provided with an arced strip 170, the arced strip 170 being positioned inside the base pipe 100 and occupying a portion of the length of the base pipe 100, the second through hole 160 being formed in the arced strip 170, and the first locking element 310 being capable of being installed into the base pipe 100 through the arced strip 170. The arc-shaped strip 170 is provided to install the first locking element 310 therein and further installed into the central tube 100, and in case of not providing the arc-shaped strip 170, it is inconvenient to install the first locking element 310 directly inside the central tube 100, and the installation of the arc-shaped strip 170 saves materials and costs required for processing. In one embodiment, the arc-shaped strip 170 is provided with a thickened area 171, and the second through hole 160 is opened in the thickened area 171, so that the central member 311 has a larger moving space in the second through hole 160. In other embodiments, the arc-shaped strip 170 may also be a tubular structure, and the first locking element 310 is installed at the end of the tubular structure, which can also achieve the purpose of conveniently installing the central tube 100, and at this time, not only the second through hole 160 but also the first through hole 150 need to be installed on the arc-shaped strip 170.

In one embodiment, the supporting foot stand 200 further comprises connecting rods 240, the number of the connecting rods 240 is equal to the number of the legs 220, two ends of each connecting rod 240 are respectively and rotatably connected to the central tube 100 and the legs 220, and since one end of each leg 220 is connected to the sliding member 210, the connecting rods 240 can drive all the legs 220 to be synchronously opened or closed when the sliding member 210 and the central tube 100 move relatively, in other embodiments, the legs can be synchronously opened and closed by providing a rope traction on the legs 220. The legs 220 are arranged in an arc shape and form a tube cylinder in a folded state, the legs 220 can close the central tube 100 and the connecting rod 240 inside the legs 220 when folded, so that the photographing bracket 10 is more attractive and portable after being stored, and in other embodiments, the legs 220 can be arranged in any shape.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention 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 metes and bounds of the claims, or equivalence of such metes and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A camera stand, comprising:

the supporting foot frame comprises a sliding part, a plurality of supporting legs and a first elastic part, wherein the supporting legs are rotatably connected to the sliding part, and the first elastic part is connected with the sliding part; the slider is movable in the axial direction of the center tube between the first end and the second end to place the legs in the folded state at the first end and to place the legs in the unfolded state at the second end;

the locking assembly comprises a first locking piece and a second locking piece, the first locking piece is arranged on the central pipe, and the second locking piece is arranged on the supporting foot frame; when the folding state is realized, the first locking element extends out of the central tube to ensure that the supporting foot stool and the central tube are kept relatively fixed, and the first elastic element accumulates elastic force; the second locking piece can drive the first locking piece to retract towards the central pipe, so that the first elastic piece can release elastic force to drive the supporting legs to unfold.

2. A camera stand according to claim 1, in which the first resilient member is located on the side of the slider facing away from the leg, the central tube being provided with a projection adjacent the first end; in the folded state, the first elastic member is in a state of being compressed between the projection and the slider.

3. The camera stand of claim 1, further comprising a pulling member, wherein one end of the pulling member is connected to the sliding member to form a snap-fit position, and the second locking member is movably disposed in the snap-fit position; the traction piece can drive the sliding piece to slide along the axial direction, so that the first locking piece is aligned to the clamping position and can automatically stretch into the clamping position.

4. A camera support according to claim 3, wherein the pulling member is of a tubular structure, and the pulling member is sleeved on the central tube and encloses with the central tube to form a containing space; the first elastic piece is located in the accommodating space and can store and release elastic force along with the driving of the traction piece.

5. The camera support according to claim 3, wherein the first locking member comprises a central member and a second elastic member, and when the first locking member is aligned with the clamping position, the central member can extend out of the central member and be clamped in the clamping position under the elastic force of the second elastic member; under folded state, the second locking part can be pressed in order to drive the centre piece to the centre tube is retracted, the centre piece breaks away from the joint position, first elastic component release elastic force drives the landing leg expandes.

6. A camera support according to claim 5, wherein at least one of the pulling member and the projecting end of the central member is provided with a ramp, the pulling member and the projecting end of the central member interfere with each other during movement of the sliding member in the axial direction of the central tube from the second end to the first end, the central member is pressed by the ramp to retract into the central tube, and when the central member is aligned with the snap position, the central member projects out of the central tube and snaps into the snap position by the resilient force of the second resilient member.

7. A camera support according to claim 5, wherein the central tube defines a first aperture through which an extended end of the central member extends and a second aperture through which an end of the central member remote from the extended end extends; a boss is arranged on one side, close to the first through hole, of the central piece, and the side, close to the first through hole, of the central piece is positioned in the central tube; one end of the second elastic piece abuts against the boss, the other end of the second elastic piece abuts against the periphery of the second through hole in the central pipe, when the extending end of the central piece is extruded and retracted, elastic force is accumulated by the second elastic piece, and the extending end of the central piece can extend out of the central pipe again under the elastic force of the second elastic piece.

8. A camera support according to claim 7, wherein the central tube is further provided with an arcuate strip located internally of the central tube and occupying part of the length of the central tube, the second through-holes opening in the arcuate strip, the first locking element being able to be fitted into the central tube through the arcuate strip.

9. A camera support according to claim 1, in which the central tube comprises a first tube and a second tube, the first locking member being provided on and extendable from the first tube, the second tube being located within the first tube, the second tube being extendable from or receivable in the central tube.

10. A camera support according to claim 1, wherein the support foot further comprises a number of links equal to the number of legs, the links being pivotally connected at opposite ends to the central tube and legs, respectively, the legs being arranged in the form of arcuate strips and forming a tubular column in the folded position, the legs being capable of closing the central tube and links inside the legs when folded.