CN215522740U - Support frame - Google Patents

Abstract

The utility model discloses a bracket, comprising: a support base; the lifting structure comprises a first connecting piece, a second connecting piece, an outer stand column, a lifting rod and a limiting piece, wherein the outer stand column is connected with the supporting base through the first connecting piece and is sleeved outside the lifting rod; the limiting piece is sleeved outside the lifting rod and positioned in the outer stand column and used for limiting the sliding of the lifting rod under the action of gravity; and the clamp is connected with the lifting rod through a second connecting piece. When the lifting rod is pulled to a certain position along the inner wall of the outer upright post under the action of external force, the lifting rod cannot descend under the action of no interference of the external force, so that the clamp has a continuous stable stretching state relative to the supporting base based on the lifting rod, and the use requirement of a user can be met.

Description

Support frame

Technical Field

The utility model relates to the technical field of articles for daily use, in particular to a support.

Background

The support is the framework that plays supporting role, and the application of support is extremely extensive, can meet everywhere in the work life, and common support includes cell-phone, panel computer support, the support that charges etc.. In order to meet the requirement of a user on the supporting height of the support in different postures and different occasions, the upright columns in the support are generally set to be lifting upright columns. At present, liftable stand generally is multistage formula lift stand, it includes a plurality of sub-stands, and the top at a sub-stand and the bottom setting of adjacent sub-stand correspond the kayser structure, make multistage formula lift stand just can have a stable tensile state (can not descend when no external force interferes) when being stretched a sub-stand length (one section), therefore, if the user needs multistage formula lift stand can have a plurality of stable tensile states, just need set up corresponding quantity's sub-stand, the structure that will lead to the stand is comparatively complicated, and, still can not satisfy the requirement that the user goes up and down in succession (has continuous stable tensile state).

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to solve the problems that the number of stable stretching states of a liftable upright post in the existing support, which cannot be reduced without external force interference, is small and the requirements of a user on a plurality of stable stretching states or continuous stable stretching states cannot be met, and to provide the support.

To this end, the utility model provides a stent comprising: a support base; the lifting structure comprises a first connecting piece, a second connecting piece, an outer stand column, a lifting rod and a limiting piece, wherein the outer stand column is connected with the supporting base through the first connecting piece and is sleeved outside the lifting rod; the limiting piece is sleeved outside the lifting rod and positioned in the outer stand column and used for limiting the sliding of the lifting rod under the action of gravity; and the clamp is connected with the lifting rod through a second connecting piece.

Further, this support still includes angle adjustment structure, and angle adjustment structure includes: one end of the second connecting piece is connected with the lifting rod, the other end of the second connecting piece is provided with a first ball containing cavity, and the first adjusting ball is arranged in the first ball containing cavity; the first ball cover is sleeved outside the first adjusting ball body and the first ball body accommodating cavity, and the first adjusting ball body can rotate in the first ball cover under the action of external force; a first adjusting groove is formed in the first ball cover; and one end of the connecting rod is connected with the first adjusting ball body, and the other end of the connecting rod extends out of the first ball cover through the first adjusting groove and is connected with the clamp.

Further, the angle adjusting structure further includes: the second adjusting ball body is connected with the other end of the connecting rod; one end of the sphere fixing piece is fixedly connected with the clamp, the other end of the sphere fixing piece is provided with a second sphere containing cavity, and the second adjusting sphere is arranged in the second sphere containing cavity; the second spherical cover is sleeved outside the second adjusting sphere and the second sphere containing cavity, and the second adjusting sphere can rotate in the second spherical cover under the action of external force; the second ball cover is provided with a second adjusting groove, and the second adjusting groove is used for accommodating the connecting rod to pass through the second ball cover and change the angle along with the rotation of the second adjusting ball body.

Further, corresponding threads are arranged on the second spherical cover and the spherical fixing piece, and the second spherical cover can be screwed close to or far away from the clamp so as to adjust the magnitude of the external force applied when the second adjusting spherical body rotates in the second spherical cover.

Furthermore, a groove corresponding to the limiting piece is arranged on the lifting rod.

Further, the jig includes: the clamping seat is characterized in that sliding grooves are formed in two ends of the interior of the clamping seat and comprise a first groove section and a second groove section, the second groove section is a groove section close to the end portion of the clamping seat, and the radial width of the first groove section is larger than that of the second groove section; the telescopic rod is arranged in the sliding groove in a sliding manner, a limiting block is arranged at the end part of the first groove section, and the radial width of the limiting block is greater than that of the second groove section; the spring is arranged in the first groove section and sleeved outside the telescopic rod; one end of the spring is abutted with the limiting block, and the other end of the spring is abutted with the inner wall of the first groove section; and the two clamping plates are respectively connected with the telescopic rods at the two ends of the clamping seat.

Further, each end of the clamping seat is provided with two telescopic rods.

Further, the support base is a tripod base.

Further, the tripod base includes: each claw comprises an installation part, a connection part and a support part which are connected in sequence; one end of the first connecting piece is connected with the outer upright post, the other end of the first connecting piece is provided with three arc-shaped track grooves, and the mounting parts of the three claws are respectively arranged in the three arc-shaped track grooves and can slide along the arc-shaped track grooves; the claw cover is covered outside the three arc-shaped track grooves, three limiting grooves corresponding to the three claws are arranged on the claw cover, the corresponding mounting parts are limited in the claw cover by the limiting grooves, and the connecting parts extend out of the claw cover through the corresponding limiting grooves.

The technical scheme provided by the utility model has the following advantages:

1. according to the support provided by the utility model, the lifting rod and the outer stand column sleeved outside the lifting rod are arranged, and the limiting piece which is also sleeved outside the lifting rod but positioned in the outer stand column is arranged, so that the lifting rod cannot descend under the condition of no external force interference when being pulled to a certain position along the inner wall of the outer stand column under the action of external force, and the lifting rod has a continuous stable stretching state relative to the outer stand column; through setting up first connecting piece and second connecting piece again to be connected outer column through first connecting piece and support the base, the lifter is connected with anchor clamps through the second connecting piece, makes anchor clamps have for supporting the continuous tensile state of base based on the lifter, can satisfy user's user demand.

2. According to the bracket provided by the utility model, the angle adjusting structure is arranged between the second connecting piece and the clamp, and the main adjusting part in the angle adjusting structure is set as the first adjusting ball body, so that the adjustable angle of the angle adjusting structure is wider based on the characteristic that the first adjusting ball body can rotate by 360 degrees; in addition, one end of the second connecting piece is connected with the lifting rod, and the other end of the second connecting piece is provided with the first ball containing cavity, so that the parts of the support can be reduced, and the structure of the support is simpler.

3. According to the support provided by the utility model, the sphere fixing part is arranged on the clamp, the second adjusting sphere is arranged in the second sphere accommodating cavity of the sphere fixing part, and the second sphere is connected with the first adjusting sphere through the connecting rod, so that the main adjusting part in the angle adjusting structure comprises the first adjusting sphere and the second adjusting sphere, the adjusting flexibility of the angle adjusting structure can be further increased, namely, the support can further meet the use requirements of users.

4. According to the bracket provided by the utility model, the clamp is arranged to be a clamping seat comprising the inner part and the sliding grooves at two ends, and the sliding grooves are arranged to be the first groove section and the second groove section with the radial width smaller than that of the first groove section, so that the telescopic rod arranged in the sliding grooves can extend out of the clamping seat through the first groove section and the second groove section, and meanwhile, the telescopic rod is limited in the sliding grooves by the limiting blocks arranged at the end parts of the first groove section, which are positioned by the telescopic rod (because the radial width of the limiting blocks is larger than that of the second groove section, the limiting blocks can only slide in the first groove section and can not enter the second groove section, and the telescopic rod can not be separated from the whole sliding grooves); and then the first groove section is internally provided with a spring sleeved outside the telescopic rod and clamping plates connected with the telescopic rod, so that the clamp can adjust the distance between the two clamping plates (based on the sliding of the telescopic rod in the sliding groove) according to the width of a clamping object, and can clamp the clamping object (based on the tension generated after the spring is compressed), thereby further improving the flexible use of the support and meeting the use requirements of users.

5. According to the support provided by the utility model, the base of the support is set to be the tripod base comprising the three claws and the claw covers, so that the tripod base can be unfolded to realize support when the support is in a state of being required to be stably placed, and the tripod base is folded when the support is in a state of not being required to be stably placed to reduce the occupied space, thereby further improving the use flexibility of the support and meeting the use requirements of users; meanwhile, one end of the first connecting piece is connected with the outer stand column, and the other end of the first connecting piece is provided with three arc-shaped track grooves, so that the three arc-shaped track grooves provide mounting space and sliding tracks for three claws in the tripod base, parts of the support are further reduced, and the structure of the support is simpler.

Drawings

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

FIG. 1 is a schematic view of a support state of a stand according to an embodiment of the present invention;

FIG. 2 is a schematic view of a stowed state of the stand according to an embodiment of the present invention;

fig. 3 is an exploded view of a lifting structure in a support according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an angle adjustment structure in a bracket according to an embodiment of the present invention;

FIG. 5 is an exploded view of an angle adjustment structure in a bracket according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a clamp in a stent according to an embodiment of the present invention;

FIG. 7 is an exploded view of a clamp in a bracket according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a support base in a rack provided in an embodiment of the present invention;

FIG. 9 is a cross-sectional view of a support base in a cradle according to an embodiment of the present invention;

description of reference numerals:

1-a support base; 11-claws; 111-a mounting portion; 112-a connecting portion; 113-a support; 12-paw lid; 121-a limiting groove;

2-a lifting structure; 21-a first connector; 211-arc shaped track groove; 22-a second connector; 221-a first sphere receiving cavity; 23-outer columns; 24-a lifter; 241-grooves; 25-a limit piece; 26-an adjusting ring;

3, clamping; 31-a holder; 311-a chute; 311 a-first groove segment; 311 b-a second groove segment; 312-cartridge front cover; 313-a cartridge rear cover; 32-a telescopic rod; 321-a limiting block; 33-a spring; 34-a clamping plate;

4-an angle adjustment structure; 41-a first adjusting sphere; 42-a first ball cover; 43-connecting rod; 44-a second adjustment sphere; 45-sphere fixing member; 46-second ball cover.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Examples

The present embodiment provides a stent, as shown in fig. 1 to 3, comprising: support base 1, elevating system 2 and anchor clamps 3.

The supporting base 1 may be any base capable of realizing a supporting function.

As shown in fig. 3, the lifting structure 2 includes a first connecting member 21, a second connecting member 22, an outer column 23, a lifting rod 24 and a limiting member 25, the outer column 23 is connected to the supporting base 1 through the first connecting member 21, and the outer column 23 is sleeved outside the lifting rod 24; the limiting member 25 is sleeved outside the lifting rod 24 and located inside the outer column 23, and is used for limiting the sliding of the lifting rod 24 under the action of gravity. In this embodiment, one end of the first connecting member 21 is connected to the outer column 23 through a screw structure, and the other end of the first connecting member 21 can be fixedly connected to the supporting base 1 through a screw structure, but of course, the other end of the first connecting member 21 can also be movably connected to the base through a rotating structure, so that the lifting structure 2 and the supporting base 1 can be folded.

In this embodiment, one or more limiting members 25 may be provided, and at the same time, the limiting members 25 need to be sleeved outside the lifting rod 24 and inside the outer column 23, so in order to ensure the lifting stroke length of the lifting rod 24 (the limiting members 25 cannot be pulled out of the lifting rod 24), the limiting members 25 are generally disposed at the bottom end of the lifting rod 24 (the bottom end of the lifting rod 24 when the bracket is in the position state shown in fig. 1-3). In this embodiment, in order to further prevent the limiting member 25 from coming off the outer column 23, an inner buckle portion may be disposed at the top end of the outer column 23, or an adjusting ring 26 as shown in fig. 3 may be disposed, and the adjusting ring 26 is also sleeved outside the lifting rod 24 and connected to the outer column 23 through a threaded structure, so that the overall length of the outer column 23 and the adjusting ring 26 (i.e., the lifting height of the lifting rod 24) can be adjusted through the threaded structure, and at this time, the inner buckle portion may be disposed at an end portion of the adjusting ring 26 away from the outer column 23.

In the present embodiment, a groove 241 corresponding to the limiting member 25 may be disposed on the lifting rod 24 for limiting the sliding of the limiting member 25 relative to the lifting rod 24, and of course, the limiting member 25 may be adhered and fixed on the lifting rod 24, or the limiting member 25 and the lifting rod 24 may be integrally formed.

The clamp 3 is connected to the lifting rod 24 through the second connecting member 22, and the clamp 3 may be any device having a clamping function.

In the bracket in this embodiment, by providing the lifting rod 24 and the outer column 23 sleeved outside the lifting rod 24, and providing the limiting member 25 also sleeved outside the lifting rod 24 but inside the outer column 23, when the lifting rod 24 is pulled to a certain position along the inner wall of the outer column 23 under the action of an external force, the lifting rod 24 does not descend without interference of the external force, so that the lifting rod 24 has a continuous stable stretching state relative to the outer column 23; and then through setting up first connecting piece 21 and second connecting piece 22 to be connected outer stand 23 with support base 1 through first connecting piece 21, lifter 24 is connected with anchor clamps 3 through second connecting piece 22, makes anchor clamps 3 have for support base 1 continuous stable tensile state based on lifter 24, can satisfy user's user demand.

As an alternative embodiment of this embodiment, the stand further includes an angle adjusting structure 4, as shown in fig. 4 and 5, the angle adjusting structure 4 includes: a first adjusting ball 41, a first ball cover 42 and a connecting rod 43.

Wherein, one end of the second connecting piece 22 is connected with the lifting rod 24, the other end is provided with a first ball containing cavity 221, and the first adjusting ball 41 is arranged in the first ball containing cavity 221. Specifically, one end of the second connector 22 may be connected to the lifting rod 24 through a screw structure.

The first ball cover 42 is sleeved outside the first adjusting ball body 41 and the first ball body accommodating cavity 221, the first adjusting ball body 41 can rotate in the first ball cover 42 under the action of external force, and the first ball cover 42 is provided with a first adjusting groove. In this embodiment, the specific position of the first adjusting groove may be set according to the requirement of the adjustable angle of the fixture 3 in a specific application scenario, which is not limited herein.

Wherein, one end of the connecting rod 43 is connected with the first adjusting ball 41, and the other end extends out of the first ball cover 42 through the first adjusting groove and is connected with the clamp 3. In this embodiment, the connection rod 43 may be integrally formed with the first adjustment ball 41, or the connection rod 43 may be connected to the first adjustment ball 41 through a threaded hole (threaded connection) by providing the threaded hole on the first adjustment ball 41, so as to connect one end of the connection rod 43 to the first adjustment ball 41.

In the bracket in the embodiment, the angle adjusting structure 4 is arranged between the second connecting piece 22 and the clamp 3, and the main adjusting part in the angle adjusting structure 4 is arranged as the first adjusting ball 41, so that the adjustable angle of the angle adjusting structure 4 is wider based on the characteristic that the first adjusting ball 41 can rotate by 360 degrees; in addition, one end of the second connecting member 22 is connected to the lifting rod 24, and the first ball receiving cavity 221 is formed at the other end of the second connecting member 22, so that the number of parts of the stand can be reduced, and the structure of the stand can be simplified.

As an alternative implementation manner of this embodiment, as shown in fig. 4 and fig. 5, the angle adjusting structure 4 may further include: a second adjusting sphere 44, a sphere fixing member 45 and a second sphere cover 46.

Wherein the second adjusting ball 44 is connected with the other end of the connecting rod 43. In this embodiment, if one end of the connecting rod 43 is connected to the first adjusting sphere 41 by integral molding, a threaded hole may be formed in the second adjusting sphere 44, so that the other end of the connecting rod 43 is connected to the second adjusting sphere 44 by the threaded hole (threaded connection); if the first adjusting ball 41 is provided with a threaded hole, and one end of the connecting rod 43 is connected (in threaded connection) with the second adjusting ball 44 through the threaded hole, the other end of the connecting rod 43 can be connected with the second adjusting ball 44 through an integrally formed manufacturing method; of course, the connection of the connecting rod 43 and the first and second adjusting spheres 41 and 44 may be provided as an integrally formed connection, or as a threaded connection.

As shown in fig. 4, one end of the sphere fixing member 45 is fixedly connected to the fixture 3, and the other end is provided with a second sphere accommodating cavity, the second adjusting sphere 44 is disposed in the second sphere accommodating cavity, and the second spherical cover 46 is sleeved outside the second adjusting sphere 44 and the second sphere accommodating cavity, so that the second adjusting sphere 44 can rotate in the second spherical cover 46 under the action of external force; the second ball cover 46 is provided with a second adjustment groove for receiving the connection rod 43 to pass through the second ball cover 46 and to change an angle with the rotation of the second adjustment ball 44.

In this embodiment, the second spherical cap 46 and the spherical fixing member 45 may be provided with corresponding threads, so that the second spherical cap 46 can be screwed close to or away from the clamp 3 to adjust the magnitude of the external force applied when the second adjusting sphere 44 rotates in the second spherical cap 46.

The support in this embodiment is through setting up spheroid mounting 45 on anchor clamps 3 to second spheroid at spheroid mounting 45 holds the intracavity and sets up second regulation spheroid 44, is connected the second spheroid with first regulation spheroid 41 through connecting rod 43 again, makes main regulating part include the second regulation spheroid 44 of first regulation spheroid in the angle modulation structure 4, can further increase the regulation flexibility of angle modulation structure 4, thereby makes this support can further satisfy user's user demand.

As an alternative implementation of the embodiment of the present invention, as shown in fig. 6 and 7, the clamp 3 may include: a holder 31, a telescopic rod 32, a spring 33 and two holding plates 34.

The sliding grooves 311 are disposed at two ends of the interior of the holder 31, each sliding groove 311 includes a first groove section 311a and a second groove section 311b, each second groove section 311b is a groove section close to the end of the holder 31, and the radial width of the first groove section 311a is greater than the radial width of the second groove section 311 b. In this embodiment, there may be one sliding groove 311 provided at each end of the holder 31, or two or three sliding grooves, and fig. 6 and 7 both show two sliding grooves 311 provided at each end of the holder 31.

The telescopic rod 32 is slidably disposed in the sliding groove 311, and a limit block 321 is disposed at an end of the telescopic rod 32 disposed on the first groove section 311a, and a radial width of the limit block 321 is greater than a radial width of the second groove section 311 b; the spring 33 is disposed in the first slot section 311a and sleeved outside the telescopic rod 32, and one end of the spring 33 abuts against the limiting block 321 and the inner wall of the first slot section 311 a.

In the present embodiment, taking the position state of the clamp 3 shown in fig. 6 as an example, and two sliding grooves 311 (and the telescopic rod 32) are provided at each end of the clamping seat 31, the two sliding grooves 311 at one end of the clamping seat 31 may be provided with the spring 33, or only one of the two sliding grooves may be provided with the spring 33.

In this embodiment, the holder 31 may include a front holder cover 312 and a rear holder cover 313, and the front holder cover 312 and the rear holder cover 313 are provided with corresponding sliding slots 311, so that when the front holder cover 312 and the rear holder cover 313 are connected, the sliding slots 311 are completely formed therebetween. In this embodiment, the ball fixing element 45 is disposed on the rear cover 313 and can be integrally formed with the rear cover 313.

Wherein, the two clamping plates 34 are respectively connected with the telescopic rods 32 at the two ends of the clamping seat 31. In this embodiment, as long as a space capable of accommodating a clamping object (such as a mobile phone, a tablet, etc.) is formed between the two clamping plates 34 and the clamping seat 31, and the two clamping plates 34 can realize a clamping function, there is no other limitation on the specific shape of the two clamping plates 34.

In the bracket of the embodiment, the clamp 3 is configured to be a clamping seat 31 including an inner portion and two sliding grooves 311 at two ends, and the sliding groove 311 is configured to include a first groove section 311a and a second groove section 311b having a radial width smaller than that of the first groove section 311a, so that the telescopic rod 32 disposed in the sliding groove 311 can extend out of the clamping seat 31 through the first groove section 311a and the second groove section 311b, and is limited in the sliding groove 311 by a limiting block 321 disposed at an end portion of the telescopic rod 32 located at the first groove section 311a (since the radial width of the limiting block 321 is larger than that of the second groove section 311b, the limiting block 321 can only slide in the first groove section 311a and cannot enter the second groove section 311b, and the telescopic rod 32 cannot be separated from the entire sliding groove 311); and then, by arranging the spring 33 sleeved outside the telescopic rod 32 and the clamping plates 34 connected with the telescopic rod 32 in the first groove section 311a, the distance between the two clamping plates 34 (based on the sliding of the telescopic rod 32 in the sliding groove 311) can be adjusted according to the width of the clamping object by the clamp 3, and the clamping object can be clamped (based on the tension generated after the spring 33 is compressed), so that the use flexibility of the bracket is further improved, and the use requirements of users are met.

As an alternative embodiment of this embodiment, as shown in fig. 1-2 and 8-9, the base may be a tripod base, and specifically, the tripod base may include: three prongs 11 and a prong cover 12.

As shown in fig. 8, each of the three claws 11 includes an installation portion 111, a connection portion 112, and a support portion 113 connected in sequence, one end of the first connection member 21 is connected to the outer column 23, and the other end thereof is provided with three circular arc-shaped track grooves 211, and the installation portions 111 of the three claws 11 are respectively disposed in the three circular arc-shaped track grooves 211 and can slide along the circular arc-shaped track grooves 211.

The claw cover 12 is disposed outside the three circular arc track grooves 211, and the claw cover 12 is provided with three limiting grooves 121 corresponding to the three claws 11, the limiting grooves 121 limit the mounting portions 111 of the corresponding claws 11 in the claw cover 12, and the connecting portions 112 of the claws 11 extend out of the claw cover 12 through the corresponding limiting grooves 121.

In the support in the embodiment, the base of the support is set to be the tripod base comprising the three claws 11 and the claw covers 12, so that the tripod base can be unfolded to realize support when the support is in a state of being required to be stably placed, and the support is folded when the support is in a state of not being required to be stably placed to reduce the occupied space, thereby further improving the use flexibility of the support and meeting the use requirements of users; meanwhile, one end of the first connecting piece 21 is connected with the outer upright column 23, and the other end of the first connecting piece is provided with three circular arc-shaped track grooves 211, so that the three circular arc-shaped track grooves 211 provide mounting space and sliding tracks for three claws 11 in the base of the tripod, parts of the support are further reduced, and the structure of the support is simpler.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the utility model.

Claims (9)

1. A stent, comprising:

a support base (1);

the lifting structure (2) comprises a first connecting piece (21), a second connecting piece (22), an outer stand column (23), a lifting rod (24) and a limiting piece (25), wherein the outer stand column (23) is connected with the supporting base (1) through the first connecting piece (21), and the outer stand column (23) is sleeved outside the lifting rod (24); the limiting piece (25) is sleeved outside the lifting rod (24) and positioned in the outer upright post (23) and used for limiting the sliding of the lifting rod (24) under the action of gravity;

the clamp (3) is connected with the lifting rod (24) through the second connecting piece (22).

2. The stand according to claim 1, further comprising an angle adjustment structure (4), the angle adjustment structure (4) comprising:

one end of the second connecting piece (22) is connected with the lifting rod (24), the other end of the second connecting piece is provided with a first ball containing cavity (221), and the first adjusting ball (41) is arranged in the first ball containing cavity (221);

the first ball cover (42) is sleeved outside the first adjusting ball body (41) and the first ball body accommodating cavity (221), and the first adjusting ball body (41) can rotate in the first ball cover (42) under the action of external force; a first adjusting groove is formed in the first ball cover (42);

and one end of the connecting rod (43) is connected with the first adjusting ball body (41), and the other end of the connecting rod extends out of the first ball cover (42) through the first adjusting groove and is connected with the clamp (3).

3. A stand according to claim 2, characterized in that the angle adjustment structure (4) further comprises:

a second adjusting ball (44) connected to the other end of the connecting rod (43);

one end of the sphere fixing piece (45) is fixedly connected with the clamp (3), the other end of the sphere fixing piece is provided with a second sphere containing cavity, and the second adjusting sphere (44) is arranged in the second sphere containing cavity;

the second ball cover (46) is sleeved outside the second adjusting ball body (44) and the second ball body accommodating cavity, and the second adjusting ball body (44) can rotate in the second ball cover (46) under the action of external force; the second ball cover (46) is provided with a second adjusting groove, and the second adjusting groove is used for accommodating the connecting rod (43) to pass through the second ball cover (46) and change angles along with the rotation of the second adjusting ball body (44).

4. A stand according to claim 3, wherein the second spherical cap (46) and the sphere fixing member (45) are provided with corresponding threads, the second spherical cap (46) being screwed closer to or further from the clamp (3) to adjust the amount of external force applied by the second adjustment sphere (44) when rotating within the second spherical cap (46).

5. Support according to any one of claims 1 to 4, characterized in that the lifting rod (24) is provided with a groove (241) corresponding to the stop (25).

6. A stand according to claim 5, characterized in that the clamp (3) comprises:

the clamping seat (31) is provided with sliding grooves (311) at two ends inside the clamping seat (31), each sliding groove (311) comprises a first groove section (311a) and a second groove section (311b), each second groove section (311b) is a groove section close to the end of the clamping seat (31), and the radial width of each first groove section (311a) is larger than that of each second groove section (311 b);

the telescopic rod (32) is slidably arranged in the sliding groove (311), a limiting block (321) is arranged at the end part of the telescopic rod (32) arranged on the first groove section (311a), and the radial width of the limiting block (321) is greater than that of the second groove section (311 b);

the spring (33) is arranged in the first groove section (311a) and sleeved outside the telescopic rod (32); one end of the spring (33) is abutted with the limiting block (321), and the other end of the spring is abutted with the inner wall of the first groove section (311 a);

and the two clamping plates (34) are respectively connected with the telescopic rods (32) at the two ends of the clamping seat (31).

7. A stand according to claim 6, characterized in that two telescopic rods (32) are provided at each end of the holder (31).

8. A stand as claimed in claim 1, characterized in that said supporting base (1) is a tripod base.

9. The stand of claim 8, wherein the tripod base comprises:

the three-dimensional mechanical hand comprises three claws (11), wherein each claw (11) comprises a mounting part (111), a connecting part (112) and a supporting part (113) which are connected in sequence; one end of the first connecting piece (21) is connected with the outer upright post (23), the other end of the first connecting piece is provided with three arc-shaped track grooves (211), and the mounting parts (111) of the three claws (11) are respectively arranged in the three arc-shaped track grooves (211) and can slide along the arc-shaped track grooves (211);

the claw cover (12) is covered on the three arc-shaped track grooves (211), three limiting grooves (121) corresponding to the claws (11) are arranged on the claw cover (12), the limiting grooves (121) limit the corresponding mounting parts (111) in the claw cover (12), and the connecting parts (112) extend to the outside of the claw cover (12) through the corresponding limiting grooves (121).

Images