CN219510544U - Telescopic support frame and support device - Google Patents

Abstract

The utility model relates to a telescopic support frame and a support device, wherein the support frame comprises: the support assembly comprises a first supporting leg and a second supporting leg, and the second supporting leg is arranged on the first supporting leg; the driving assembly comprises a mounting driving assembly, a fixed block and a driving spring, wherein the mounting driving assembly is arranged on the first supporting leg, the fixed block is arranged on the second supporting leg, and the driving spring is arranged between the mounting driving assembly and the fixed block; the flexible assembly comprises a first flexible piece and a second flexible piece, the first flexible piece and the second flexible piece are respectively arranged at two ends of the installation driving assembly, and one end, away from the installation driving assembly, of the second flexible piece is connected with the fixed block. Because the rotation assembly is provided with the driving spring, when the restriction on the wire wheel is released by the movable seat, the driving spring can release elastic force, so that the fixed block automatically drives the second supporting leg to be unfolded, and the use of the supporting device is facilitated.

Description

Telescopic support frame and support device

Technical Field

The utility model relates to the technical field of photographic equipment, in particular to a telescopic support frame and a telescopic support device.

Background

Tripod can often be applied to in people's shooting or photographic in-process, and the tripod plays the supporting role to camera or video camera, and the tripod has better stability simultaneously to make camera or video camera reach better shooting effect in shooting in-process. However, in the tripod of the same type on the existing market, the user needs to manually open the support legs when using the tripod, so that the user has poor experience on the tripod. For example, CN113864603a discloses a fast extending or retracting, safely positioning and synchronizing foot tube device and unipod and tripod, when a user uses the tripod, the user needs to manually expand the foot tube to use the foot tube, and when the tripod is relatively large, the user also needs to apply a larger external force to the foot tube to expand the foot tube for use, thereby making the use of the tripod difficult for the user.

Disclosure of Invention

An object of the present utility model is to provide a telescopic support frame and a supporting device, which solve the problem of difficulty in opening the support leg.

The utility model provides a telescopic support frame, comprising:

the support assembly comprises a first supporting leg and a second supporting leg, and the second supporting leg is arranged on the first supporting leg;

The driving assembly comprises a mounting driving assembly, a fixed block and a driving spring, the mounting driving assembly is arranged on the first supporting leg, the fixed block is arranged on the second supporting leg, and the driving spring is arranged between the mounting driving assembly and the fixed block;

the flexible assembly comprises a first flexible piece and a second flexible piece, the first flexible piece and the second flexible piece are respectively arranged at two ends of the installation driving assembly, and one end, away from the installation driving assembly, of the second flexible piece is connected with the fixed block;

the installation driving assembly comprises an installation seat, a movable seat, a first reset piece, a wire wheel and a torsion spring, wherein the installation seat is arranged on the first supporting leg, the movable seat is connected with one end of the first flexible piece, the first reset piece is arranged between the installation seat and the movable seat, the wire wheel is rotatably arranged on the installation seat, one end of the second flexible piece is fixed with the wire wheel and can be wound and rolled on the wire wheel, and the torsion spring is arranged between the installation seat and the wire wheel;

when the second flexible piece is wound and rolled on the wire wheel, the first flexible piece can be in a tightening state, so that the first reset piece accumulates reset force, the movable seat limits the wire wheel to rotate, the driving spring is limited between the mounting seat and the fixed block, and the driving spring accumulates elastic force; the first flexible piece can be loosened, so that the first reset piece releases reset force to drive the movable seat to move relative to the mounting seat, further limitation of the movable seat on rotation of the wire wheel is relieved, the driving spring releases elastic force, and the fixed block drives the second flexible piece to overcome the elastic force of the torsion spring to stretch and drive the second support leg to move relative to the first support leg to be unfolded.

In one embodiment, the wire wheel is provided with a first gear structure, the movable seat is provided with a second gear structure, and the first gear structure can be matched with the second gear structure so that the movable seat can limit the rotation of the wire wheel.

In one embodiment, at least one of the first gear structure and the second gear structure is continuous along a circumferential direction of the wire wheel.

In one embodiment, the wire wheel is provided with a groove, the groove circumferentially surrounds the wire wheel, a first guide surface and a second guide surface are arranged on different sides of the groove, the normal line of the first guide surface is inclined to the moving direction of the movable seat, the normal line of the second guide surface is inclined to the moving direction of the movable seat, and when the second flexible member is wound on the wire wheel, the second flexible member can move along the first guide surface or the second guide surface so that the second flexible member is accommodated in the groove.

In one embodiment, the wire wheel is provided with fixing grooves at least one of opposite ends in an axial direction of the wire wheel, the number of torsion springs is matched with the number of fixing grooves, and the torsion springs can be received in the fixing grooves.

In one embodiment, the mounting seat comprises a mounting shell and a rotating shaft, the movable seat is arranged on the mounting shell and can move relative to the mounting shell, the wire wheel is sleeved on the rotating shaft and can rotate around the rotating shaft, and the torsion spring is arranged between the rotating shaft and the wire wheel.

In one embodiment, the mounting seat further comprises a first elastic element, the first elastic element is arranged between the rotating shaft and the mounting shell, and the rotating shaft can overcome the elastic force of the first elastic element to drive the wire wheel to move relative to the mounting seat.

In one embodiment, the mounting driving assembly further includes a clamping member, the clamping member is disposed on one side of the mounting seat, and when the second flexible member is wound on the reel, the first flexible member can be tightened, so that the movable seat drives the clamping member to move relative to the mounting seat and protrude out of the mounting seat.

In one embodiment, the mounting driving assembly comprises a second elastic member, the second elastic member is arranged between the clamping member and the mounting seat, and the clamping member can overcome the elastic force of the second elastic member so that the clamping member protrudes out of the mounting seat; the first flexible piece can be loosened, so that the first reset piece releases reset force to drive the movable seat to move relative to the mounting seat, and the second elastic piece can release elastic force to drive the clamping piece to retract.

In one embodiment, at least one of the contact surfaces of the clamping piece and the movable seat is provided with an inclined surface, a normal line of the inclined surface is inclined to the moving direction of the movable seat, the movable seat can move along the inclined surface to drive the clamping piece to move relative to the mounting seat, and the moving direction of the movable seat is perpendicular to the moving direction of the clamping piece.

In one embodiment, the restoring element is provided as a spring; or, the reset piece is set to be a magnetic component, the magnetic component comprises a first magnet and a second magnet, the first magnet is arranged on the mounting seat, the second magnet is arranged on the movable seat, and the magnetic force between the first magnet and the second magnet is repulsive force.

The utility model also provides a supporting device, which comprises a fixed seat and a plurality of supporting frames, wherein the first supporting leg of each supporting frame is rotatably connected with the fixed seat, and the supporting frame can rotate relative to the fixed seat to be unfolded; the fixing base is connected with the first flexible piece in each supporting frame, the first flexible piece can be driven by the fixing base to be switched between a tightening state and a loosening state, and when the first flexible piece is in the loosening state, the second supporting leg is driven by the fixing block to be unfolded under the action of the driving spring.

In one embodiment, the fixing base comprises a fixing body and a locking piece, the first supporting leg is rotatably connected with the fixing body, the locking piece is connected with the first flexible piece of each supporting frame, and the locking piece can rotate relative to the fixing base so that the first flexible piece can be switched between a tightening state and a loosening state.

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

according to the mounting driving assembly provided by the embodiment of the utility model, the first reset piece is arranged on the mounting main body, when the first flexible piece is loosened, the first reset piece can release the reset force, so that the movable seat can automatically move relative to the mounting seat, further the limitation of the movable seat on the wire wheel is relieved, and at the moment, the second flexible piece can be stretched and tightened under the action of the driving force, so that the unlocking of the mounting driving assembly is facilitated. Simultaneously, the rotating assembly is provided with a torsion spring, and when the second flexible piece is in a loose state, the torsion spring can release elastic force, so that the second flexible piece can be automatically stored in the winding reel, and storage of the second flexible piece is facilitated. The installation drive assembly can be applied to telescopic support frame and strutting arrangement, because strutting arrangement is provided with drive spring, the user is when opening the support frame and using, promptly when the user relaxes the first flexible piece in the terminal installation drive assembly, drive spring can release elastic force to drive the many landing legs of support frame and extend in proper order and expand, and then the user need not to manually open many landing legs and use, makes the user more convenient and laborsaving to strutting arrangement's use.

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 a structure of a supporting device in an unfolded state according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of the supporting device shown in FIG. 1 in a storage state;

FIG. 3 is a schematic cross-sectional view of the support device shown in FIG. 2;

FIG. 4 is a schematic cross-sectional structural view of the mounting drive assembly of FIG. 3;

FIG. 5 is a schematic view of an exploded construction of the mounting drive assembly of FIG. 3;

FIG. 6 is a schematic view of the reel and the movable base shown in FIG. 5;

FIG. 7 is a schematic cross-sectional view of a supporting device according to a second embodiment of the present utility model;

fig. 8 is a schematic structural view of a support device in an unfolded state according to a second embodiment of the present utility model.

The reference numerals are explained as follows:

1-a supporting device; 10-fixing seats; 110-a fixed body; 120-locking piece; 20-supporting frames; 200-supporting legs; 300-mounting a drive assembly; 310-mounting a body; 311-mounting seats; 312-a movable seat; 313-a first reset element; 314-mounting a shell; 315-rotating shaft; 316-a first elastic member; 317-clamping piece; 318-a second elastic member; 319-incline; 320-rotating the assembly; 321-line wheels; 322 torsion spring; 323-grooves; 324-a fixed groove; 330-a flexible component; 331-a first flexible member; 332-a second flexible member; 340-a first mounting drive assembly; 350-a second mounting drive assembly; 400-driving spring; 500-a support assembly; 510-a first leg; 520-a second leg; 600-a drive assembly; 610-a fixed block; 3120-a second gear structure; 3210-a first gear structure; 3230—a first guide surface; 3231-second guide surface.

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 utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, 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 above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

First embodiment

Referring to fig. 1 and 2, the present utility model provides a supporting device 1, wherein the supporting device 1 includes a fixing base 10 and a supporting frame 20, and the end of the supporting frame 20 is rotatably connected with the fixing base 10, so that the supporting frame 20 can be unfolded at a certain angle. Simultaneously, the support frame 20 can be stretched under the drive of the fixing seat 10. Fig. 1 illustrates that the number of the supporting frames 20 is three, and it is understood that in other embodiments, the number of the supporting frames 20 may be set according to the needs of the user, for example, the number of the supporting frames 20 is one, two, four, five, etc., and the present utility model is not limited to the number of the supporting frames 20.

When the user uses the supporting device 1, the supporting frame 20 can be switched from the storage state shown in fig. 2 to the unfolding state shown in fig. 1, namely, the user can install the image pickup apparatus on the fixing base 10, at this time, the user can rotate the supporting frame 20 relative to the fixing base 10, so that the supporting frame 20 forms a tripod structure, and the supporting frame 20 is stretched and unfolded under the driving of the fixing base 10, so that the supporting device 1 supports, fixes and uses the image pickup apparatus. It is to be understood that when the number of settings of the support frames 20 is one, the support frames 20 can be used as a self-timer stick or a self-timer handle to change the height of the image pickup apparatus mounted on the fixing base 10 by the extension and shortening of the support frames 20. In addition, in some usage scenarios, the support frame 20 may be configured to be non-rotatable with respect to the fixed base 10, and the support frame 20 may only be configured to allow axial expansion and contraction.

In an embodiment, fixing base 10 can also install the cloud platform, and camera equipment passes through cloud platform and is connected with fixing base 10 this moment, when fixing base 10 installs the cloud platform, camera equipment can realize the shooting to different angles at same height to more convenient help user accomplish shooting work and satisfy the demand that the user was shot to the multi-angle. Of course, the fixing base 10 may also be provided with a threaded hole, a threaded shaft, and other adapting structures. The image capturing apparatus may be, but not limited to, a smart phone, a tablet computer, a video camera, and the like.

The supporting device 1 can be switched between a deployed state and a storage state, fig. 1 illustrates that the supporting device 1 is in the deployed state, and when the supporting device 1 needs to be deployed, a user can rotate the supporting frame 20 relative to the outer side of the fixing seat 10 to be deployed, and at this time, the supporting frame 20 forms a triangle structure to realize the use of the supporting device 1. Fig. 2 illustrates the support device 1 in a storage state, when the support device 1 needs to be stored, a user can rotate the plurality of support frames 20 relative to the inner side of the fixed seat 10, and the plurality of support frames 10 are adjacent to each other at this time, so as to realize storage and storage of the support device 1. The support frame 10 may also be contracted in the axial direction when it is desired to further change the axial length of the support frame 10 as a whole.

Referring to fig. 3, the fixing base 10 includes a fixing body 110 and a locking member 120, the fixing body 110 is used for converging ends of the plurality of support frames 20, such that an end of each support frame 20 is rotatably connected with the fixing body 110, and when it is required to support the photographing apparatus mounted on the fixing base 10 by using the support frames 20, the support frames 20 can be rotated with respect to the fixing body 110 to switch the support frames 20 to an unfolded state. The locking member 120 is used for keeping the support frame 20 in a state that the axial dimension is shortened, and the locking member 120 is also used for being triggered to realize unlocking, so that the support frame 20 in the shortened state can be automatically stretched when the locking member 120 is unlocked, and the locking member 120 can be unlocked when the axial length of the support frame 20 in the unfolded state needs to be further adjusted.

Fig. 3 illustrates that the locking member 120 is rotatably coupled to the fixed body 120, and one end of the locking member 120 is coupled to the supporting frame 20. When the support frame 20 is in a state that the axial length is shortened, the user rotates the locking member 120 relative to the fixed body 110, so that the support frame 20 can be automatically extended and unfolded. When the support frame 20 is in the state of extending the axial length, the user can apply external force to the support frame 20 to make the support frame 20 shrink and shorten, after the length of the support frame 20 shortens, the locking piece 120 can continue to reversely rotate relative to the fixed body 120 at this time, namely the locking piece 120 is reset, and the support frame 20 is locked under the action of the locking piece 120 after reset so as to keep the support frame 20 in the state of shortening the axial length, and further avoid the automatic extension of the support frame 20. It should be appreciated that the rotational coupling of the locking member 120 to the fixed body 120 to actuate the extension and retraction of the support frame 20 is merely illustrative of the present application, and that other ways of locking and releasing the support frame 20 are possible with the locking member 120 in other embodiments.

The support frame 20 includes a plurality of legs 200, a mounting driving assembly 300 and a driving spring 400, the legs 200 at the end of the support frame 20 are rotatably connected with the fixed body 110, the mounting driving assembly 300 is disposed on each leg 200, and the driving spring 400 is disposed between two adjacent mounting driving assemblies 300. When using the supporting device 1, a user can rotate the supporting leg 200 at the end of the supporting frame 20 relative to the fixed body 110 to switch the supporting device 1 between the unfolded state and the stored state. The "unfolded state" means that the plurality of support frames 20 are separated from each other to form a certain included angle, and the plurality of support legs 200 in each support frame 20 can also stretch and retract to realize the extension and shortening of the axial length of the support frame 20. The "storage state" means that the plurality of support frames 20 are disposed adjacent to each other and side by side, and the plurality of legs 200 in each support frame 20 can also be extended and contracted to extend and shorten the axial length of the support frame 20. The installation drive assembly 300 is also capable of switching to a locked state and an unlocked state when in the deployed and stowed states.

When the supporting device 1 is in the state of shortened axial length, the user can rotate the lock member 200 relative to the fixed body 110 to release the locking state of the installation driving assembly 300, and then the driving spring 400 releases the elastic force, so that the installation driving assembly 300 drives the plurality of supporting legs 200 to be unfolded along the axial direction of the supporting legs 200, thereby realizing the extension and unfolding of the supporting frame 20. When the supporting device 1 is in the state of extending the axial length, the user can apply an external force to the legs 200, and the plurality of legs 200 are sequentially received in the outermost legs 200 under the action of the external force, at this time, the user can reset the locking member 120, so that the installation driving assembly 300 enters the locking state to fix the plurality of legs 200, and meanwhile, the driving spring 400 is limited between two adjacent installation driving assemblies 300 and accumulates the elastic force.

Fig. 3 illustrates three legs 200, it being understood that in other embodiments, the legs 200 may be two, four, five, etc. Fig. 3 also illustrates that the legs 200 are formed in a rectangular parallelepiped, and it is understood that the external structure of the legs 200 may be square, cylindrical, etc., and the number of the legs 200 and the external structure of the legs 200 are not limited in the present utility model.

Referring to fig. 4 and 5, the mounting driving assembly 300 includes a mounting body 310, a rotating member 320 and a flexible member 330, the mounting body 310 is provided to the leg 200, the rotating member 320 is rotatably provided to the mounting body 310, the flexible member 330 includes a first flexible member 331 and a second flexible member 332, the first flexible member 331 is provided at one end of the mounting body 310 and is connected with the locking member 120 near the first flexible member 331 of the mounting driving assembly 300 in the end of the supporting frame 20, one end of the second flexible member 332 is provided at the rotating member 320 and is capable of winding around the rotating member 320, and the other end of the second flexible member 332 is also connected with the first flexible member 331 of the adjacent mounting driving assembly 300. Wherein, for ease of understanding, when the mounting drive assemblies 300 are disposed on the plurality of legs 200, any two adjacent mounting drive assemblies 300 are defined as a first mounting drive assembly 340 and a second mounting drive assembly 350, where the second flexible member 332 in the first mounting drive assembly 340 is connected with the first flexible member 331 in the second mounting drive assembly 350.

When the support frame 20 is required to be extended, the user can rotate the lock member 120 relative to the fixed body 110 to enable the first flexible member 331 to be in a loose state, so as to release the restriction of the mounting body 310 on the rotating assembly 223. At this time, the driving spring 400 is released from the restriction and releases the elastic force, so that the mounting body 310 in the second mounting driving assembly 350 drives the plurality of legs 200 to be unfolded, and at the same time, the mounting body 310 in the second mounting driving assembly 350 drives the second flexible member 332 to be stretched against the resistance of the rotating member 320 of the first mounting driving assembly 340.

When the support frame 20 needs to be shortened, a user can apply an external force to the legs 200 to drive the plurality of legs 200 to overcome the elastic force of the driving spring 400 and to be accommodated in the outermost leg 200, and the driving spring 400 is restrained between the adjacent two mounting bodies 310 and accumulates the elastic force. At this time, the user resets the lock 120 to make the first flexible element 331 in a tightened state, and the mounting body 310 is driven by the first flexible element 331 to limit the rotation of the rotation component 223, so that the mounting driving assembly 300 enters a locked state, thereby fixing the mounting driving assembly 300 to the leg 200. When the plurality of legs 200 are stored in the outermost leg 200, the rotating assembly 223 can wind the second flexible member 332 around the rotating assembly 223 under the action of the driving force of the rotating assembly 223, so as to realize the storage of the second flexible member 332.

To facilitate an understanding of the principles of extension and retraction of the support frame 20 described above, a detailed description will be provided below.

The mounting body 310 includes a mounting seat 311, a movable seat 312, and a first resetting member 313, the mounting seat 311 is disposed on the leg 200, the movable seat 312 is disposed on the mounting seat 311, and the first resetting member 313 is disposed between the mounting seat 311 and the movable seat 312. Wherein the movable seat 312 is connected to the first flexible member 331, and the driving spring 400 is located between two adjacent mounting seats 311.

When the support frame 20 is in the shortened state, the movable seat 312 interacts with the rotating assembly 320 and limits the circumferential rotation of the rotating assembly 320, at this time, the first flexible member 331 is in a tensioned state, the second flexible member 332 is wound around the rotating assembly 320, and the first reset member 313 accumulates the reset force. When the support frame 20 needs to be stretched, the user can rotate the lock member 120 relative to the fixed body 110, so that the first flexible member 331 can be in a loose state, and then the first reset member 313 releases a reset force to drive the movable seat 312 to move relative to the mounting seat 311, so that the restriction of the movable seat 312 to the rotating assembly 320 is relieved, and the driving spring 400 can release an elastic force due to the restriction of the movable seat 312 to the rotating assembly 320, so that two mounting seats 311 adjacent in the axial direction can be mutually separated under the action of the driving spring 400, and the mounting seat 311 drives the plurality of support legs 200 to be unfolded. The second flexible member 332 of the first installation driving assembly 340 is driven by the installation seat 311 of the second installation driving assembly 350, and the second flexible member 332 of the first installation driving assembly 340 is unfolded against the resistance of the rotating component 320.

When the support frame 20 needs to be shortened, a user applies an external force to the support legs 200 to drive the plurality of support legs 200 to overcome the elastic force of the driving springs 400 and sequentially store the outermost support legs 200, the driving springs 400 are limited between two adjacent mounting seats 311 and accumulate the elastic force, and the second flexible member 332 in the first mounting driving assembly 340 is wound around the second flexible member 332 of the first mounting driving assembly 340 under the self-driving force of the rotating component 320 in the first mounting driving assembly 340. At this time, the user can reset the lock 120, so that the first flexible member 331 drives the movable seat 312 to move relative to the mounting seat 311 against the reset force of the first reset member 313, so that the movable seat 312 acts on the rotating assembly 320 to limit the rotation of the rotating assembly 320 in the circumferential direction, that is, the driving spring 400 that accumulates elastic force can not drive the second flexible member 332 to expand by releasing the elastic force, thereby fixing the mounting driving assembly 300 to the plurality of legs 200, and at least realizing that two adjacent legs 200 cannot continue to stretch.

The mount pad 311 includes mounting shell 314 and pivot 315, and mounting shell 314 sets up in landing leg 200, and pivot 315 wears to locate wire wheel 321 to make wire wheel 321 can rotate along circumference around pivot 315, and pivot 315's different both ends are connected fixedly with mounting shell 314. Wherein the movable seat 312 is disposed on the mounting shell 314 and is capable of moving relative to the mounting shell 314, the driving spring 400 is disposed between the mounting shells 314 of two adjacent mounting driving assemblies 300.

When the support 20 needs to be extended, the user can rotate the lock 120 relative to the fixed body 110, so that the first flexible element 331 is in a loose state, the first reset element 313 releases the reset force, so that the movable seat 312 moves relative to the mounting shell 314, and the movable seat 312 releases the restriction on the rotating component 320, at this time, the driving spring 400 releases the elastic force, so that the mounting shell 314 can drive the plurality of support legs 200 to move relative to the axis direction of the support legs 200 and to be sequentially unfolded, and meanwhile, under the driving of the mounting shell 314 of the second mounting driving assembly 350, the second flexible element 332 of the first mounting driving element 2201 drives the rotating component 320 to rotate relative to the rotating shaft 315 thereof, so that the second flexible element 332 of the first mounting driving element 2201 overcomes the resistance of the rotating component 320.

When the support frame 20 needs to be shortened, the user can apply an external force to the support legs 200 to drive the plurality of support legs 200 to overcome the elastic force of the driving spring 400 and be accommodated in the outermost support leg 200, and at this time, the driving spring 400 is limited between the two adjacent mounting shells 314 and accumulates the elastic force. Meanwhile, under the self-driving force of the rotating assembly 320, the rotating assembly 320 rotates relative to the rotating shaft 315, so as to drive the second flexible member 332 to wind around and wind up on the rotating assembly 320, thereby realizing the storage of the second flexible member 332.

The mounting seat 311 further comprises a first elastic member 316, and the first elastic member 316 is disposed between the rotating assembly 320 and the mounting seat 311. When the mounting seat 311 is provided with the mounting shell 314 and the rotating shaft 315, the first elastic member 316 is disposed between the mounting shell 314 and the rotating shaft 315.

When the movable seat 312 moves relative to the mounting shell 314, the movable seat 312 abuts against the rotating assembly 320, so that the rotating assembly 320 drives the rotating shaft 315 to overcome the elastic force of the first elastic member 316 and move relative to the mounting shell 314.

When the first restoring member 313 releases the restoring force to drive the movable base 312 to move relative to the mounting shell 314, the first elastic member 316 can also release the elastic force at this time, so that the rotating shaft 315 drives the rotating assembly 320 to move relative to the mounting shell 314, and the rotating assembly 320 is further restored. When the mounting seat 311 is provided with the first elastic member 316, under the action of the first elastic member 316, the rotating shaft 315 can automatically drive the rotating assembly 320 to move relative to the mounting shell 314, so that the rotating assembly 320 is reset, and a user can use the support frame 20 conveniently.

In fig. 5, the number of the first elastic members 316 is two, the two first elastic members 316 are respectively located at different ends of the rotating shaft 315, openings are respectively formed on two sides of the mounting shell 314 for placing the first elastic members 316, and two ends of the rotating shaft 315 are respectively clamped to the openings, so that the rotating shaft 315 and the mounting shell 314 are connected and fixed. When the first elastic member 316 is provided in two, the rotation shaft 315 is uniformly stressed and moves more smoothly during the movement with respect to the mounting case 314. It should be noted that the number of the first elastic members 316 is not limited in the present utility model.

Fig. 5 illustrates that the movable seat 312 has a substantially rectangular parallelepiped structure, and through holes are formed at different ends of the movable seat 312, and different ends of the rotating assembly 320 can be inserted into the through holes at two sides of the movable seat 312, so that when the movable seat 312 moves relative to the mounting shell 314, two sides of the movable seat 312 can abut against two ends of the rotating assembly 320, and further the rotating assembly 320 is driven to move relative to the mounting shell 314. It will be appreciated that in other embodiments, the movable mount 312 may be provided as a sheet that is circumferentially wrapped around the rotating assembly 320 and located on one side of the rotating assembly 320. The sheet can drive the rotating assembly 320 to move relative to the mounting seat 311 under the driving of the first flexible member 331, and the sheet can limit the rotation of the rotating assembly 320, and meanwhile, the number of the sheets can be two and the sheets can be respectively located at two different sides of the rotating assembly 320.

Fig. 4 illustrates that the first restoring member 313 is configured as a spring, and at this time, the first restoring member 313 is disposed between the mounting seat 311 and the movable seat 312, and meanwhile, the first flexible member 331 is disposed through the first restoring member 313 and is clamped to one side of the movable seat 312. When the mounting seat 311 includes the mounting shell 314, the first restoring member 313 is located between the mounting shell 314 and the movable seat 312. It should be noted that, when the first restoring member 313 is configured as a spring, the first restoring member 313 may be disposed between the mounting seat 311 and the movable seat 312, and the positions of the plurality of first restoring members 313 between the mounting seat 311 and the movable seat 312 are not limited. In addition, the first reset element 313 may be further configured as a magnet assembly, where the magnet assembly includes a first magnet and a second magnet, the first magnet is disposed on the mounting seat 311, the second magnet is disposed on the movable seat 312, and a magnetic force between the first magnet and the second magnet is a repulsive force. When the mounting seat 311 is provided with the mounting case 314, the first magnet is provided to the mounting case 314. At this time, the movable mount 312 needs to overcome the repulsive force of the interaction between the first magnet and the second magnet to be movable with respect to the mount 311.

The rotating assembly 320 includes a wire wheel 321 and a torsion spring 322, wherein the wire wheel 321 is sleeved on the rotating shaft 315 and can rotate around the rotating shaft 315, and the torsion spring 322 is disposed between the wire wheel 321 and the rotating shaft 315. The second flexible member 332 is fixed to the wire wheel 321 at one end, and can be wound around the wire wheel 321, and the second flexible member 332 can be stretched and expanded under the spring force of the driving spring 400, and the torsion spring 322 accumulates the elastic force, which has a tendency to rotate to take the wire wheel 321 to wind up the second flexible member 332.

When the plurality of support legs 200 are sequentially stored in the outermost support legs 200, the torsion spring 322 can release the elastic force, and the second flexible member 332 is wound around the wire wheel 321, so that the second flexible member 332 is stored. At this time, the elastic force released by the torsion spring 322 is the self-driving force of the rotating assembly 320 as described above. Meanwhile, when the locking member 120 is reset, the first flexible member 331 is in a tightened state, and the movable seat 312 overcomes the reset force of the first reset member 313 to move relative to the mounting seat 311 under the driving of the first flexible member 331, so that the movable seat 312 abuts against two sides of the wire wheel 321 and limits the wire wheel 321 to rotate, and the mounting driving assembly 300 is further installed to enter a locked state.

When the movable seat 312 releases the restriction on the wire wheel 321, the driving spring 400 releases the elastic force, so that the second flexible member 332 of the first installation driving assembly 340 drives the wire wheel 321 to rotate relative to the rotating shaft 315 against the elastic force of the torsion spring 322 under the driving of the installation shell 314 of the second installation driving assembly 350, and the second flexible member 332 of the first installation driving assembly 340 is stretched under the driving of the installation shell 314 of the second installation driving assembly 350. At this time, the elastic force of the torsion spring 322 is the resistance of the rotating assembly 320 described above.

In order to accommodate the wire wheel 321 to the second flexible element 332, in an embodiment, the wire wheel 321 is provided with a groove 323, and the groove 323 circumferentially surrounds the wire wheel 321. The second flexible member 332 can be received in the recess 323 to enable the wire wheel 321 to receive a portion of the flexible member 330. The grooves 323 are provided with a first guiding surface 3230 and a second guiding surface 3231 on different sides, wherein the normal line of the first guiding surface 3230 is inclined to the moving direction of the movable seat 312, and the normal line of the second guiding surface 3231 is inclined to the moving direction of the movable seat 312. The second flexible member 332 can move along the first guiding surface 3230 or the second guiding surface 3231, so that when the second flexible member 332 is wound around the wire wheel 321, the phenomenon that the center of gravity of the second flexible member 332 is shifted does not occur, and when the second flexible member 332 is wound around the wire wheel 321, the second flexible member 332 is not knotted, so that the rotation of the wire wheel 321 is more stable.

The illustration 4 illustrates that the recess 323 is V-shaped, while in one embodiment the recess 323 may also be U-shaped. It should be noted that the shape and structure of the groove 323 may be other than a regular V shape or a U shape, and the groove surfaces on different sides of the groove 323 are curved surfaces with a certain inclination angle.

At least one of the two opposite axial ends of the wire wheel 321 is provided with one or two fixing grooves 324, i.e. the number of fixing grooves 324 may be one or two, and when the number of fixing grooves 324 is two, the fixing grooves 324 are located at different ends of the wire wheel 321. The torsion spring 322 can be received in the fixing groove 324 such that the torsion spring 322 is better fixed between the wire wheel 321 and the rotary shaft 315. It should be noted that the number of torsion springs 322 matches the number of fixing grooves 324.

Fig. 5 illustrates that both the first flexible member 331 and the second flexible member 332 are provided as cords. It will be appreciated that in other embodiments, the first and second flexible members 331, 332 may also be provided as some flexible steel wire. It should be noted that the specific materials used for the first flexible member 331 and the second flexible member 332 are not limited in the present utility model. When the first flexible member 331 and the second flexible member 332 are provided as ropes, the first flexible member 331 and the second flexible member 332 have small volumes in the process of shortening and accommodating the plurality of support legs 200, and therefore, large accommodating space in the support legs 200 is not occupied.

The present utility model provides a mounting driving assembly 300, since the mounting main body 310 is provided with the first reset element 313, the first reset element 313 can release the reset force, so that the movable seat 312 can automatically move relative to the mounting seat 311, and further the restriction of the movable seat 312 on the wire wheel 321 is released, at this time, the second flexible element 332 can be stretched and tightened under the action of the driving force, thereby facilitating the unlocking of the mounting driving assembly 300. Simultaneously, the rotating assembly 320 is provided with the torsion spring 322, when the movable seat 312 releases the restriction on the wire wheel 321, and when the second flexible piece 332 is in a loose state, the torsion spring 322 can release elastic force, so that the second flexible piece 332 can be automatically stored, wound and wound on the wire wheel 321, and the storage of the second flexible piece 332 is facilitated. The installation driving assembly 300 can also be applied to the telescopic supporting frame 20 and the supporting device 1, since the supporting device 1 is provided with the driving spring 400, when the supporting frame 20 is opened for use by a user, namely when the user loosens the first flexible piece 331 in the end-most installation driving assembly 300, the driving spring 400 can release elasticity, so that the installation driving assembly 300 can automatically drive the plurality of supporting legs 200 of the supporting frame 20 to sequentially extend and spread, and the user does not need to manually open the plurality of supporting legs 200 for use, so that the user can use the supporting device 1 more conveniently and more easily.

In an embodiment, the mounting body 310 further includes a clip 317, and the clip 317 is disposed on one side of the mounting seat 311. When the mounting seat 311 includes the mounting shell 314, the clip 317 is disposed on one side of the mounting shell 314. When the second flexible member 332 is wound around the reel 321, the first flexible member 331 is tightened under the action of the lock member 120, so that the movable seat 312 drives the clamping member 317 to move relative to the mounting seat 311 and protrude out of the mounting seat 311, and the clamping member 317 abuts against the inner wall of the supporting leg 200, so as to fix the plurality of supporting legs 200. When the mounting body 310 is provided with the clip 317, the clip 317 can fix the mounting driving assembly 300 in the leg 200 to prevent the mounting driving assembly 300 from moving toward the end of the support frame 20, thereby preventing the adjacent two mounting driving assemblies 300 from excessively pressing the driving spring 400 when the plurality of legs 200 are shortened.

It should be noted that, the number of the clamping members 317 may be multiple, when the clamping members 317 are multiple, the clamping members 317 are respectively located at different sides of the mounting base 311, and meanwhile, the clamping members 317 can be abutted against the inner walls of the supporting legs 200 at different sides of the mounting base 311, so that the clamping members 317 are more firmly fixed to the supporting legs 200. Of course, in other embodiments, the number of the clips 317 may be set to one.

In an embodiment, the mounting body 310 further includes a second elastic member 318, and the second elastic member 318 is disposed between the clip member 317 and the mounting seat 311. When the mounting seat 311 includes the mounting shell 314, the second elastic member 318 is disposed between the clip member 317 and the mounting shell 314. When the movable seat 312 moves relative to the mounting seat 311, the movable seat 312 can drive the clamping member 317 to overcome the elastic force of the second elastic member 318, so that the clamping member 317 can protrude from the mounting seat 311 relative to the mounting seat 311, and the clamping member 317 abuts against the inner wall of the supporting leg 200, thereby fixing the plurality of supporting legs 200. Meanwhile, when the first flexible element 331 is relaxed, the first reset element 313 releases the reset force to drive the movable seat 312 to move relative to the mounting seat 311, so that the second elastic element 318 can release the elastic force to drive the clamping element 317 to retract. When the mounting body 310 is provided with the second elastic member 318, the second elastic member 318 releases the elastic force, so that the clip 317 can be automatically reset, thereby facilitating the use of the support frame 20 by a user. It should be noted that the number of the second elastic members 318 matches the number of the locking members 317.

In an embodiment, at least one of the contact surfaces of the clip 317 and the movable seat 312 is provided with a slope 319, and a normal line of the slope 319 is inclined to the moving direction of the movable seat 312. When the movable seat 312 drives the clip 317 to move relative to the mounting seat 311, the movable seat 312 can drive the clip 317 to move relative to the mounting seat 311 along the inclined surface 319, and at this time, the moving direction of the movable seat 312 is perpendicular to the moving direction of the clip 317. In the case of the inclined surface 319, the inclined surface 319 can reduce the resistance between the movable seat 312 and the clamp 317 when the movable seat 312 moves with the clamp 317, and also increase the smoothness of the relative movement between the movable seat 312 and the clamp 317.

In the embodiment in which at least one of the contact surfaces of the clip 317 and the movable seat 312 is provided with the inclined surface 319, the contact surface of the clip 317 is provided with the inclined surface 319, and the contact surface of the movable seat 312 is not provided with the inclined surface 319. Alternatively, the contact surface of the movable seat 312 is provided with a slope 319, and the contact surface of the clip 317 is not provided with a slope 319. Alternatively, the contact surfaces of the clip 317 and the movable base 312 are each provided with a chamfer 319. In the case that the contact surfaces of the clip member 317 and the movable seat 312 are provided with the inclined surface 319, the inclined surface 319 can further reduce the resistance between the movable seat 312 and the clip member 317, and can further increase the smoothness of the relative movement between the movable seat 312 and the clip member 317.

Referring to fig. 6, in an embodiment, the wire wheel 321 is provided with a first gear structure 3210, and the movable seat 312 is provided with a second gear structure 3120. When the movable seat 312 abuts against the wire wheel 321, the first gear structure 3210 and the second gear structure 3120 cooperate to enable the movable seat 312 to limit rotation of the wire wheel 321 relative to the rotation shaft 315, thereby achieving locking of the installation driving assembly 300. Fig. 6 illustrates that the first gear structure 3210 is disposed at different ends of the wire wheel 321, and the second gear structure 3120 is disposed at different sides of the movable seat 312.

The first gear structure 3210 is continuous along the circumference of the wire wheel 321, so that the second gear structure 3120 can be matched with the first gear structure 3210 at any angle along the circumference of the wire wheel 321, and further, the first gear structure 3210 and the second gear structure 3120 can be mutually matched in any extension and shortening process of the support frame 20, so that the movable seat 312 limits the rotation of the wire wheel 321, and then the installation driving assembly 300 enters a locking state, and meanwhile, the fixing of the plurality of support legs 200 is realized. It should be noted that at least one of the first gear structure 3210 and the second gear structure 3120 is continuous along the circumference of the wheel 321, i.e. the first gear structure 3210 is continuous along the circumference of the wheel 321 and the second gear structure 3120 is not continuous along the circumference of the wheel 321. Alternatively, the second gear structure 3120 is continuous along the circumference of the wheel 321 and the first gear structure 3210 is not continuous along the circumference of the wheel 321. Alternatively, both the first gear structure 3210 and the second gear structure 3120 are continuous along the circumference of the wheel 321.

Second embodiment

The supporting device 1 of the present embodiment is substantially the same as the supporting device 1 of the first embodiment, except for the specific structure of the supporting frame 20. Specifically, in the present embodiment, the leg 200 of the tail end of the support frame 20 (i.e., the leg 200 at the end remote from the fixing body 110) is not provided with the mounting driving assembly 300, and the leg 200 of the tail end is provided with only the fixing block 610, and the fixing block 610 can be understood as the mounting case 314 of the mounting driving assembly 300. The support frame 20 includes a support assembly 500 and a drive assembly 600. Wherein the support member 500 comprises a first leg 510, a second leg 520, and the drive member 600 comprises a fixed block 610, the previously described mounting drive assembly 300, and the previously described drive spring 400.

Referring to fig. 7 and 8, in one embodiment, the first leg 510 of each support frame 20 is rotatably connected to the fixed body 110, the second leg 520 is disposed on the first leg 510, the mounting driving assembly 300 is disposed on the first leg 510, and the fixed block 610 is disposed on the second leg 520. The first leg 510 of the support stand 20 is rotatable relative to the fixed body 110 to enable the support device 1 to be switched between the deployed state and the stowed state. Wherein the mounting driving assembly 210 is disposed on the first leg 510, and the driving spring 400 is disposed between the mounting driving assembly 210 and the fixed block 610, and the end of the second flexible member 332 remote from the mounting driving assembly 210 is connected to the fixed block 610.

When the support 20 needs to be extended, the user can rotate the lock 120 relative to the fixed body 110, so that the first flexible element 331 is loosened under the driving of the lock 120, and then the first reset element 313 releases the reset force, so that the movable seat 312 is opposite to the mounting shell 314, and the movable seat 312 releases the restriction on the wire wheel 321, at this time, the driving spring 400 is also released from the restriction, so that the driving spring 400 can release the elastic force, and the fixed block 610 drives the second support leg 520 to move relative to the first support leg 510 under the action of the driving spring 400 to be unfolded. Meanwhile, under the driving of the fixing block 610, the second flexible member 332 drives the lower wire wheel 321 to overcome the elastic force of the torsion spring 322, so that the wire wheel 321 can rotate relative to the rotating shaft 315. When the spool 321 can rotate relative to the shaft 315, the second flexible member 332 is driven by the fixed block 610 to extend.

When the support frame 20 needs to be shortened, the user can apply an external force to the second support leg 520 to drive the second support leg 520 to overcome the elastic force of the driving spring 400 and be accommodated in the first support leg 510, the driving spring 400 is limited between the installation driving assembly 300 and the fixed block 610 and accumulates the elastic force, and meanwhile, the movable seat 312 releases the limitation of the rotation of the wire wheel 321, so that the torsion spring 322 can release the elastic force to drive the wire wheel 321 to rotate, and the second flexible piece 332 is wound around the wire wheel 321. Finally, the user applies an external force to the locking member 120, so that the locking member 120 drives the first flexible member 331 to overcome the restoring force of the first restoring member 313 to move relative to the axial direction of the first leg 510, at this time, the first flexible member 331 is in a tightened state, and under the driving of the first flexible member 331, the movable seat 312 moves relative to the mounting shell 314, so that the movable seat 312 limits the rotation of the wire wheel 321, and the mounting driving assembly 300 enters a locking state, thereby limiting the second leg 520 to extend in the axial direction of the first leg 510 away from the fixing base 10, and at this time, the second leg 520 can be further shortened relative to the axial direction of the first leg 510 near the fixing base 10. Meanwhile, when the movable seat 312 moves relative to the mounting shell 314, the movable seat 312 also drives the clamping member 317 to move relative to the mounting shell 314, so that the clamping member 317 protrudes from the mounting shell 314 to abut against the inner wall of the first leg 510, thereby fixing the mounting driving assembly 300 to the mounting driving assembly 300 at two different sides of the mounting driving assembly 300 along the axial direction of the first leg 510. At this time, the second leg 520 cannot move in the axial direction of the first leg 510.

It should be noted that, when the user needs to increase the length of the support frame 20, the user may set a plurality of first legs 510 to increase the overall length of the support frame 20, and the plurality of first legs 510 are sequentially sleeved, the first leg 510 close to the fixed body 110 is rotationally connected with the fixed body 110, and the second leg 520 is disposed on the first leg 510 far away from one side of the fixed body 110. The aforementioned fixing block 610 is provided in the leg 200 farthest from the fixing body 110. The other legs 200 have the previously described mounting drive assembly 300 disposed therein.

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 (13)

1. A telescoping support, comprising:

the support assembly comprises a first supporting leg and a second supporting leg, and the second supporting leg is arranged on the first supporting leg;

The driving assembly comprises a mounting driving assembly, a fixed block and a driving spring, the mounting driving assembly is arranged on the first supporting leg, the fixed block is arranged on the second supporting leg, and the driving spring is arranged between the mounting driving assembly and the fixed block;

the flexible assembly comprises a first flexible piece and a second flexible piece, the first flexible piece and the second flexible piece are respectively arranged at two ends of the installation driving assembly, and one end, away from the installation driving assembly, of the second flexible piece is connected with the fixed block;

the installation driving assembly comprises an installation seat, a movable seat, a first reset piece, a wire wheel and a torsion spring, wherein the installation seat is arranged on the first supporting leg, the movable seat is connected with one end of the first flexible piece, the first reset piece is arranged between the installation seat and the movable seat, the wire wheel is rotatably arranged on the installation seat, one end of the second flexible piece is fixed with the wire wheel and can be wound and rolled on the wire wheel, and the torsion spring is arranged between the installation seat and the wire wheel;

when the second flexible piece is wound and rolled on the wire wheel, the first flexible piece can be in a tightening state, so that the first reset piece accumulates reset force, the movable seat limits the wire wheel to rotate, the driving spring is limited between the mounting seat and the fixed block, and the driving spring accumulates elastic force; the first flexible piece can be loosened, so that the first reset piece releases reset force to drive the movable seat to move relative to the mounting seat, further limitation of the movable seat on rotation of the wire wheel is relieved, the driving spring releases elastic force, and the fixed block drives the second flexible piece to overcome the elastic force of the torsion spring to stretch and drive the second support leg to move relative to the first support leg to be unfolded.

2. The support frame of claim 1, wherein the wire wheel is provided with a first gear structure and the movable seat is provided with a second gear structure, the first gear structure being capable of cooperating with the second gear structure to enable the movable seat to limit rotation of the wire wheel.

3. The support frame of claim 2, wherein at least one of the first gear structure and the second gear structure is continuous along a circumference of the wire wheel.

4. The support frame according to claim 1, wherein the wire wheel is provided with a groove circumferentially surrounding the wire wheel, and first and second guide surfaces are provided on different sides of the groove, a normal line of the first guide surface being inclined with respect to a moving direction of the movable seat, and a normal line of the second guide surface being inclined with respect to the moving direction of the movable seat, the second flexible member being movable along the first guide surface or the second guide surface when the second flexible member is wound around the wire wheel so that the second flexible member is received in the groove.

5. The support frame according to claim 1, wherein the wire reel is provided with fixing grooves at least one of opposite ends in an axial direction of the wire reel, the number of the torsion springs being matched with the number of the fixing grooves, the torsion springs being receivable in the fixing grooves.

6. The support frame of claim 1, wherein the mounting base comprises a mounting shell and a rotating shaft, the movable base is disposed on the mounting shell and is capable of moving relative to the mounting shell, the wire wheel is sleeved on the rotating shaft and is capable of rotating around the rotating shaft, and the torsion spring is disposed between the rotating shaft and the wire wheel.

7. The support frame of claim 6, wherein the mounting base further comprises a first elastic member, the first elastic member is disposed between the rotating shaft and the mounting shell, and the rotating shaft can overcome the elastic force of the first elastic member to drive the wire wheel to move relative to the mounting base.

8. The support frame of claim 1, wherein the mounting drive assembly further comprises a clip disposed on a side of the mount, the first flexible member being capable of being tightened when the second flexible member is wound around the reel, such that the movable mount moves the clip relative to the mount and protrudes from the mount.

9. The support frame of claim 8, wherein the mounting drive assembly includes a second resilient member disposed between the clip and the mount, the clip being capable of overcoming the resilient force of the second resilient member to cause the clip to protrude from the mount; the first flexible piece can be loosened, so that the first reset piece releases reset force to drive the movable seat to move relative to the mounting seat, and the second elastic piece can release elastic force to drive the clamping piece to retract.

10. The support frame of claim 8, wherein at least one of the contact surfaces of the clip and the movable seat is provided with a slope, a normal line of the slope is inclined to a moving direction of the movable seat, the movable seat can move along the slope to drive the clip to move relative to the mounting seat, and the moving direction of the movable seat is perpendicular to the moving direction of the clip.

11. The support frame of claim 1, wherein the return member is provided as a spring; or, the reset piece is set to be a magnetic component, the magnetic component comprises a first magnet and a second magnet, the first magnet is arranged on the mounting seat, the second magnet is arranged on the movable seat, and the magnetic force between the first magnet and the second magnet is repulsive force.

12. A support device comprising a fixed seat and a plurality of support frames according to any one of claims 1 to 11, the first leg of each support frame being rotatably connected to the fixed seat, the support frame being rotatable relative to the fixed seat for deployment; the fixing base is connected with the first flexible piece in each supporting frame, the first flexible piece can be driven by the fixing base to be switched between a tightening state and a loosening state, and when the first flexible piece is in the loosening state, the second supporting leg is driven by the fixing block to be unfolded under the action of the driving spring.

13. The support device of claim 12, wherein the holder includes a fixed body and a locking member rotatably coupled to the fixed body, the locking member coupled to the first flexible member of each of the support frames, the locking member being rotatable relative to the holder to enable the first flexible member to switch between the tightened state and the loosened state.