Electric drive type one-key elastic supporting leg and supporting frame

Abstract

The invention discloses an electric drive type one-key elastic supporting leg and a supporting frame. The supporting leg comprises a first mounting base, a second mounting base, a fixed pipe set, a first telescopic pipe set, a second telescopic pipe set, a transmission shaft, a motor, a first locking assembly, a second locking assembly and a linkage assembly. By means of the structure, simultaneous locking and simultaneous unlocking between the first telescopic pipe set and the fixed pipe set and between the second telescopic pipe set and the first telescopic pipe set can be achieved in an electric drive mode, then rapid folding and rapid unfolding of the supporting frame are achieved, the operation convenience and efficiency of the supporting frame are improved, and the use requirement is met.

Description

Technical Field

[0001] The invention relates to the field of photographic equipment, and in particular to an electrically driven one-button elastic supporting foot and a supporting frame. Background Art

[0002] Mobile phones and cameras (or tablet computers, laptop computers, etc.) are commonly used devices in people's daily life and work. In order to meet the shooting needs of some users, a support frame is used to support the shooting equipment during shooting, so as to free the user's hands. The support frame usually includes a plurality of support legs, and the support legs are retractable to adjust the height of the support frame. The retractable support leg has three sections of leg tubes, and a group of locking mechanisms are arranged between two adjacent sections of leg tubes. Each group of locking mechanisms has an independent locking / unlocking switch. Both groups of locking / unlocking switches need to be turned on to unfold all the leg tubes on the support leg. If you want to unfold the entire support frame, you need to turn on 6 locking / unlocking switches, which is extremely inconvenient to use. Therefore, there is an urgent need for an electric-driven one-button elastic support leg and a support frame to solve the above problems. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an electrically driven one-touch elastic support foot and a support frame.

[0004] An embodiment of the present invention solves the technical problem by adopting a technical solution: an electrically driven one-touch elastic support foot, comprising a first mounting seat, a second mounting seat, a fixed tube group, a first telescopic tube group, a second telescopic tube group, a transmission shaft, a motor, a first locking assembly, a second locking assembly and a linkage assembly;

[0005] The first mounting seat and the second mounting seat are arranged opposite to each other;

[0006] The fixed pipe group is connected between the first mounting seat and the second mounting seat;

[0007] The first telescopic tube group is movably arranged on the fixed tube group to move axially relative to the fixed tube group;

[0008] The second telescopic tube set is movably arranged on the first telescopic tube set to move axially relative to the first telescopic tube set;

[0009] The transmission shaft is rotatably connected between the first mounting seat and the second mounting seat;

[0010] The first motor is connected to one end of the transmission shaft;

[0011] The first locking assembly is connected between the fixed tube assembly, the first telescopic tube assembly and the transmission shaft and has a locking position and an unlocking position;

[0012] The second locking assembly is connected between the first telescopic tube assembly and the second telescopic tube assembly and has a locking position and an unlocking position;

[0013] The linkage assembly is connected to the first locking assembly and the second locking assembly respectively, and is used to link the first locking assembly and the second locking assembly to enter the locking position or the unlocking position at the same time;

[0014] The motor can drive the first locking assembly and the second locking assembly into a locking position through the transmission shaft when rotating forward, so as to limit the movement between the first telescopic tube group and the fixed tube group and the movement between the second telescopic tube group and the first telescopic tube group respectively; or the motor can drive the first locking assembly and the second locking assembly into an unlocking position through the transmission shaft when rotating forward, so that the first telescopic tube group can move relative to the fixed tube group and the second telescopic tube group can move relative to the first telescopic tube group.

[0015] As one of the preferred embodiments of the present invention, the fixed tube group includes a first fixed tube and a second fixed tube respectively arranged on both sides of the transmission shaft, and the first locking assembly includes a first movable seat, a worm, a worm wheel, a transmission assembly, a first pressing block and a second pressing block;

[0016] The first movable seat is located between the first fixed tube and the second fixed tube and is movably arranged on the transmission shaft to move axially relative to the transmission shaft;

[0017] The worm rotates synchronously with the transmission shaft and can move axially relative to the transmission shaft;

[0018] The worm wheel is arranged on the first movable seat and meshes with the worm;

[0019] The first pressing block and the second pressing block are arranged on both sides of the worm;

[0020] The input end of the transmission assembly is connected to the worm gear, the first output end is connected to the first pressing block, and the second output end is connected to the second pressing block;

[0021] The worm can drive the first pressure block and the second pressure block to move in opposite directions through the worm wheel and the transmission assembly when the transmission shaft rotates forward, so that the first pressure block presses against the first fixed tube and the second pressure block presses against the second fixed tube; or the worm can drive the first pressure block and the second pressure block to move in opposite directions through the worm wheel and the transmission assembly when the transmission shaft rotates forward, so that the first pressure block is separated from the first fixed tube and the second pressure block is separated from the second fixed tube.

[0022] As one of the preferred embodiments of the present invention, the transmission assembly includes a connecting rod, a first gear, a second gear, a third gear and a fourth gear;

[0023] The connecting rod is rotatably arranged on the first movable seat, and the worm gear is arranged on the connecting rod;

[0024] The first gear and the second gear are arranged on the connecting rod and are arranged on both sides of the worm gear;

[0025] The third gear is connected to the first pressing block and meshes with the first gear;

[0026] The fourth gear is connected to the second pressing block and meshes with the second gear.

[0027] As one of the preferred embodiments of the present invention, a switching switch and a clutch assembly are provided on the first movable seat;

[0028] The switch is axially movably arranged on the connecting rod and has a first state and a second state, and the first gear and the second gear are arranged on the switch;

[0029] The clutch assembly is connected between the worm gear and the switch and has an engaged position and an active position;

[0030] The switching switch can rotate synchronously with the worm gear when the clutch assembly is in the engaged position, or the switching switch can switch between the first state and the second state when the clutch assembly is in the active position, and drive the first pressure block and the second pressure block to move away from each other when the first state is switched to the second state, and drive the first pressure block and the second pressure block to move toward each other when the second state is switched to the first state.

[0031] As one of the preferred embodiments of the present invention, the clutch assembly includes a clutch protrusion arranged on the worm gear and a clutch groove arranged on the switching switch. The clutch protrusion is in an engaged position when inserted into the clutch groove, and is in an active position when the clutch protrusion is separated from the clutch groove.

[0032] As one of the preferred embodiments of the present invention, an electrically driven one-touch elastic support foot further includes a return spring which is sleeved on the connecting rod and abuts against the worm gear and the switching switch respectively.

[0033] As one of the preferred embodiments of the present invention, the first telescopic tube group includes a first leg tube and a second leg tube respectively arranged on both sides of the transmission shaft, the second telescopic tube group includes a third leg tube inserted in the first leg tube and a fourth leg tube inserted in the second leg tube, and the second locking assembly includes a second movable seat, a first limiting sleeve and a second limiting sleeve;

[0034] The second movable seat is arranged at the end of the first telescopic tube assembly;

[0035] The first limiting sleeve is arranged on the second movable seat, the third leg tube is passed through the first limiting sleeve, the second limiting sleeve is arranged on the second movable seat, and the fourth leg tube is passed through the second limiting sleeve;

[0036] The linkage assembly is connected to the first limiting sleeve and the second limiting sleeve;

[0037] The linkage assembly can drive the first limiting sleeve and the second limiting sleeve to abut against the second movable seat and deform when the transmission shaft rotates in the forward direction, so as to respectively press against the third leg tube and the fourth leg tube; or the linkage assembly can drive the first limiting sleeve and the second limiting sleeve to separate from the second movable seat and recover the deformation when the transmission shaft rotates in the reverse direction, so as to respectively separate from the third leg tube and the fourth leg tube.

[0038] As one of the preferred embodiments of the present invention, the linkage assembly includes a pull rod assembly, a first connection assembly and a second connection assembly;

[0039] The first connecting assembly is connected between the first locking assembly and one end of the pull rod assembly;

[0040] The second connecting assembly is connected between the second locking assembly and the other end of the pull rod assembly;

[0041] The first locking assembly can enter the locking position when the transmission shaft rotates forward and drive the rod assembly upward through the first connecting assembly, so as to link the second locking assembly to the locking position through the second connecting assembly; or the first locking assembly can enter the unlocking position when the transmission shaft rotates reversely and drive the rod assembly downward through the first connecting assembly, so as to link the second locking assembly to the unlocking position through the second connecting assembly.

[0042] As one of the preferred embodiments of the present invention, a battery assembly electrically connected to the motor is arranged in the fixed tube group.

[0043] A support frame comprises the support feet.

[0044] The beneficial effects of the present invention include: an electrically driven one-touch elastic support foot and a support frame, the support foot comprising a first mounting seat, a second mounting seat, a fixed tube group, a first telescopic tube group, a second telescopic tube group, a transmission shaft, a motor, a first locking assembly, a second locking assembly and a linkage assembly; through the above structure, simultaneous locking and unlocking between the first telescopic tube group and the fixed tube group and between the second telescopic tube group and the first telescopic tube group can be achieved in an electrically driven manner, thereby achieving rapid folding and unfolding of the support frame, improving the operating convenience and efficiency of the support frame, and meeting usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0046] Figure 1 It is a structural schematic diagram of a support frame in a folded state;

[0047] Figure 2 It is a structural schematic diagram of a support frame in an unfolded state;

[0048] Figure 3An exploded view of an electrically driven one-touch elastic support foot;

[0049] Figure 4 for Figure 3 A partial enlarged view of the middle A area;

[0050] Figure 5 is a cross-sectional view of a support frame in a folded state;

[0051] Figure 6 for Figure 5 A partial enlarged view of the middle B area;

[0052] Figure 7 for Figure 5 A partial enlarged view of the middle C area. DETAILED DESCRIPTION

[0053] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0054] In the description of the present invention, the meaning of "above", "below", "exceed", etc. is not inclusive of the number itself, and the meaning of "above", "below", "within", etc. is inclusive of the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0055] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0057] 1)Reference Figure 1-Figure 25. In the present invention, a support frame including a three-cut seat and three support legs rotatably connected to the three-cut seat is used as an example for explanation, wherein each support leg includes a first mounting seat 110, a second mounting seat 120, a fixed pipe group 200, a first telescopic pipe group 300, a second telescopic pipe group 400, a transmission shaft 510, a motor 520, a first locking assembly 600, a second locking assembly 700 and a linkage assembly 800; the first mounting seat 110 and the second mounting seat 120 are arranged opposite to each other; the fixed pipe group 200 is connected between the first mounting seat 110 and the second mounting seat 120; the first telescopic pipe group 300 is movably arranged on the fixed pipe group 200 to move axially relative to the fixed pipe group 200; the second telescopic pipe group 400 is movably arranged on the fixed pipe group 200 On the first telescopic tube group 300, it can move axially relative to the first telescopic tube group 300; the transmission shaft 510 is rotatably connected between the first mounting seat 110 and the second mounting seat 120; the first motor 520 is connected to one end of the transmission shaft 510; the first locking assembly 600 is connected between the fixed tube group 200, the first telescopic tube group 300 and the transmission shaft 510 and has a locking position and an unlocking position; the second locking assembly 700 is connected between the first telescopic tube group 300 and the second telescopic tube group 400 and has a locking position and an unlocking position; the linkage assembly 800 is respectively connected to the first locking assembly 600 and the second locking assembly 700, and is used to link the first locking assembly 600 and the second locking assembly 700 to enter the locking position or the unlocking position at the same time.

[0058] Specifically, when the supporting legs need to be deployed, power is input through the motor 520. When the motor 520 rotates in the opposite direction, the first locking assembly 600 will be driven to enter the unlocked position, and the second locking assembly 700 and the first locking assembly 600 are linked through the linkage assembly 800, so that the second locking assembly 700 also enters the unlocked position, which enables the first telescopic tube group 300 to move relative to the fixed tube group 200 and the second telescopic tube group 400 to move relative to the first telescopic tube group 300, so that the supporting legs can be deployed or retracted; when the supporting legs are deployed or retracted, the motor 520 is rotated in the opposite direction, and the first locking assembly 600 is driven to enter the locked position through the transmission shaft 510. At this time, the second locking assembly 700 also enters the locked position under the action of the linkage assembly 800, which can respectively limit the movement between the first telescopic tube group 300 and the fixed tube group 200 and limit the movement between the second telescopic tube group 400 and the first telescopic tube group 300, so that the support frame remains in the deployed state or the retracted state.

[0059] 2)Reference Figure 3-Figure 4In some embodiments, the fixed tube group 200 includes a first fixed tube 210 and a second fixed tube 220 arranged on both sides of the transmission shaft 510, and the first locking assembly 600 includes a first movable seat 610, a worm 620, a worm wheel 630, a transmission assembly 640, a first pressure block 650 and a second pressure block 660; the first movable seat 610 is located between the first fixed tube 210 and the second fixed tube 220 and is movably arranged on the transmission shaft 510 to move axially relative to the transmission shaft 510; the worm 620 rotates synchronously with the transmission shaft 510 and can move axially relative to the transmission shaft 510; the worm wheel 630 is arranged on the first movable seat 610 and meshes with the worm 620; the first pressure block 650 and the second pressure block 660 are arranged on both sides of the worm 620; the input end of the transmission assembly 640 is connected to the worm wheel 630, the first output end is connected to the first pressure block 650, and the second output end is connected to the second pressure block 660.

[0060] Specifically, when the motor 520 drives the transmission shaft 510 to rotate in the forward direction, the worm 620 will be driven to rotate synchronously. The worm 620 and the transmission shaft 510 are connected by an axially arranged guide structure, so that the worm 620 can rotate synchronously with the transmission shaft 510 and can also move axially relative to the transmission shaft 510. Furthermore, when the worm 620 rotates, the worm wheel 630 will be driven to rotate, and then the first pressure block 650 and the second pressure block 660 will be driven to move in opposite directions through the transmission assembly 640. It should be noted that the first pressure block 650 and the second pressure block 660 are connected to the transmission assembly 640 by threads, and the first pressure block 650 and the second pressure block 660 are connected to the first movable seat 610 by a horizontal guide structure, which can move the first pressure block 6 The rotational motion of the first pressing block 50 and the second pressing block 660 is converted into a linear motion in the horizontal direction, so that the first pressing block 650 is pressed against the first fixed tube 210 and the second pressing block 660 is pressed against the second fixed tube 220, thereby limiting the relative motion between the first movable seat 610 (the first telescopic tube group 300) and the fixed tube group 200; when the motor 520 drives the transmission shaft 510 to rotate in the opposite direction, the first pressing block 650 and the second pressing block 660 will be driven to move toward each other through the worm 620, the worm gear 630 and the transmission assembly 640, so that the first pressing block 650 is separated from the first fixed tube 210 and the second pressing block 660 is separated from the second fixed tube 220. At this time, the first movable seat 610 (the first telescopic tube group 300) can move relative to the fixed tube group 200.

[0061] 3)Reference Figure 3-Figure 4In some embodiments, the transmission assembly 640 includes a connecting rod 641, a first gear 642, a second gear 643, a third gear 644 and a fourth gear 645; the connecting rod 641 is rotatably disposed on the first movable seat 610, and the worm gear 630 is disposed on the connecting rod 641; the first gear 642 and the second gear 643 are disposed on the connecting rod 641 and are arranged on both sides of the worm gear 630; the third gear 644 is connected to the first pressure block 650 and meshes with the first gear 642; the fourth gear 645 is connected to the second pressure block 660 and meshes with the second gear 643.

[0062] Specifically, when the worm gear 630 rotates, it will drive the first gear 642 and the second gear 643 to rotate simultaneously, and the first gear 642 drives the third gear 644 to rotate, and the second gear 643 drives the fourth gear 645 to rotate, finally realizing the opposite movement or the opposite movement between the first pressure block 650 and the second pressure block 660.

[0063] 4)Reference Figure 1-Figure 6 In some embodiments, a switching switch 670 and a clutch assembly 680 are provided on the first movable seat 610; the switching switch 670 is axially movably provided on the connecting rod 641 and has a first state and a second state, and the first gear 642 and the second gear 643 are provided on the switching switch 670; the clutch assembly 680 is connected between the worm gear 630 and the switching switch 670 and has an engaged position and a movable position.

[0064] Specifically, the switch 670 is a manual unlocking backup for the electric drive unlocking, and can manually unlock the support leg when the electric drive unlocking fails; further, the switch 670 is configured as a trigger, and in the electric drive unlocking mode, the clutch assembly 680 is in the engaged position, that is, the switch 670 is linked with the worm gear 630, so that the motor 520 drives the switch 670 to switch between the first state and the second state through the transmission shaft 510, the worm 620, and the worm gear 630, that is, when the electric drive unlocking is in progress, The switching switch 670 will also move accordingly; when the electric unlocking lock fails, the clutch assembly 680 can be put into the active position by axially sliding the switching switch 670. At this time, the switching switch 670 can be switched between the first state and the second state in the form of manual operation, that is, the switching switch 670 drives the first pressure block 650 and the second pressure block 660 to move away from each other when the first state is switched to the second state, and the switching switch 670 drives the first pressure block 650 and the second pressure block 660 to move toward each other when the second state is switched to the first state.

[0065] 5)Reference Figure 3-Figure 4In some embodiments, the clutch assembly 680 includes a clutch protrusion 681 disposed on the worm gear 630 and a clutch groove 682 disposed on the switching switch 670. When the clutch protrusion 681 is inserted into the clutch groove 682, it is in an engaged position, and when the clutch protrusion 681 is separated from the clutch groove 682, it is in an active position.

[0066] 6)Reference Figure 3-Figure 4 In some embodiments, an electrically driven one-button tensioning support foot further includes a return spring 690 which is sleeved on the connecting rod 641 and respectively abuts against the worm gear 630 and the switching switch 670; by setting the return spring 690, the clutch assembly 680 can be kept in the engaged position in the electrically driven unlocking mode, and the clutch assembly 680 enters the active position only when the switching switch 670 is pulled and the various friction forces and the elastic force of the return spring 690 are overcome.

[0067] 7)Reference Figure 5 and Figure 7 In some embodiments, the first telescopic tube group 300 includes a first leg tube 310 and a second leg tube 320 respectively arranged on both sides of the transmission shaft 510, the second telescopic tube group 400 includes a third leg tube 410 inserted in the first leg tube 310 and a fourth leg tube 420 inserted in the second leg tube 320, the second locking assembly 700 includes a second movable seat 710, a first limiting sleeve 720 and a second limiting sleeve 730; the second movable seat 710 is arranged at the end of the first telescopic tube group 300; the first limiting sleeve 720 is arranged on the second movable seat 710, the third leg tube 410 is passed through the first limiting sleeve 720, the second limiting sleeve 730 is arranged on the second movable seat 710, and the fourth leg tube 420 is passed through the second limiting sleeve 730; the linkage assembly 800 is connected to the first limiting sleeve 720 and the second limiting sleeve 730.

[0068] Specifically, when the motor 520 drives the transmission shaft 510 to rotate forward, it will drive the first locking assembly 600 to enter the locking position, and drive the first limiting sleeve 720 and the second limiting sleeve 730 to move upward through the linkage assembly 800, so that the first limiting sleeve 720 and the second limiting sleeve 730 abut against the second movable seat 710, wherein the first limiting sleeve 720 and the second limiting sleeve 730 are composed of a plurality of holding pieces, and a first inclined surface is provided on the outer wall of the holding piece, and a first wedge block 910 and a second wedge block 920 are provided on the inner wall of the second movable seat 710, and a second inclined surface abutting against the first inclined surface is provided on the first wedge block 910 and the second wedge block 920, The cooperation between the first inclined surface and the second inclined surface forces the holding piece to deform, and then respectively hold the third leg tube 410 and the fourth leg tube 420; or when the motor 520 drives the transmission shaft 510 to rotate in the opposite direction, it will drive the first locking component 600 to enter the unlocking position, and drive the first limiting sleeve 720 and the second limiting sleeve 730 to move downward through the linkage component 800, so that the first limiting sleeve 720 and the second limiting sleeve 730 are abutted against the second movable seat 710. At this time, the first inclined surface is separated from the second inclined surface, the holding piece loses external force and recovers its shape, so that the first limiting sleeve 720 and the second limiting sleeve 730 are separated from the third leg tube 410 and the fourth leg tube 420 respectively.

[0069] 8)Reference Figure 5 and Figure 6 In some embodiments, the linkage assembly 800 includes a pull rod assembly 810, a first connection assembly 820, and a second connection assembly 830; the first connection assembly 820 is connected between the first locking assembly 600 and one end of the pull rod assembly 810; the second connection assembly 830 is connected between the second locking assembly 700 and the other end of the pull rod assembly 810;

[0070] Specifically, the pull rod assembly 810 includes a first pull rod 811 inserted in the first leg tube 310 and a second pull rod 812 inserted in the second leg tube 320. The first pull rod 811 and the second pull rod 812 are connected to the second locking assembly 700 through the second connecting assembly 830. The third leg tube 410 is inserted in the first pull rod 811, and the fourth leg tube 420 is inserted in the second pull rod 812. Further, when the motor 520 drives the first locking assembly 600 to enter the locking position through the transmission shaft 510, the first pull rod 811 and the second pull rod 812 will be driven upward through the first connecting assembly 820, and finally the second locking assembly 700 will be linked to the locking position synchronously through the second connecting assembly 830. When the motor 520 drives the first locking assembly 600 to enter the unlocking position through the transmission shaft 510, the first pull rod 811 and the second pull rod 812 will be driven downward through the first connecting assembly 820, and finally the second locking assembly 700 will be linked to the locking position synchronously through the second connecting assembly 830.

[0071] 9)Reference Figure 3 and Figure 6 In some embodiments, the first connecting assembly 820 includes a first U-shaped rod 821 and a second U-shaped rod 822, and one end of the first U-shaped rod 821 and one end of the second U-shaped rod 822 are rotatably connected to the first locking assembly 600. Specifically, one end of the first U-shaped rod 821 is rotatably connected to the third gear 644, and one end of the second U-shaped rod 822 is rotatably connected to the fourth gear 645; further, the other end of the first U-shaped rod 821 is rotatably connected to one end of the first pull rod 811, and the other end of the second U-shaped rod 822 is rotatably connected to one end of the second pull rod 812, so that when the third gear 644 and the fourth gear 645 rotate, the first U-shaped rod 821 and the second U-shaped rod 822 can respectively drive the first pull rod 811 and the second pull rod 812 to move upward or downward, thereby realizing the linkage between the second locking assembly 700 and the first locking assembly 600;

[0072] In some embodiments, the second connecting assembly 830 includes a first pull sleeve 831 and a second pull sleeve 832, and the first pull sleeve 831 is respectively connected to the other end of the pull rod assembly 810 and the second locking assembly 700; specifically, the first pull sleeve 831 is connected to the first limit sleeve 720, and the second pull sleeve 832 is connected to the second limit sleeve 730, which can respectively pull the first limit sleeve 720 and the second limit sleeve 730 upward or push the first limit sleeve 720 and the second limit sleeve 730 to move downward; in other embodiments, it also includes a first adjusting knob 930 threadedly connected to the first pull sleeve 831 and a second adjusting knob 940 threadedly connected to the second pull sleeve 832, and the locking degree of the first limit sleeve 720 and the second limit sleeve 730 on the leg pipe is adjusted by rotating the first adjusting knob 930 and the second adjusting knob 940.

[0073] 10)Reference Figure 5 and Figure 7 In some embodiments, a battery assembly 900 electrically connected to the motor 520 is provided in the fixed tube group 200; specifically, the battery assembly 900 is installed in the first fixed tube 210 and / or the second fixed tube 220, and is detachably connected, which can not only hide and store the battery assembly 900 through the first fixed tube 210 and / or the second fixed tube 220, avoiding the battery assembly 900 from protruding and affecting the aesthetics, but also facilitate the user to quickly replace the dead battery assembly 900 in time, thereby improving the convenience of use; further, a locking button 950 and an unlocking button 960 electrically connected to the motor 520 are provided, which can respectively control the forward and reverse rotation of the motor 520; of course, the three motors 520 on the three supporting legs are controlled by the same locking button 950 and unlocking button 960, so as to realize one-button unlocking of the three supporting legs.

[0074] 11) The advantage of the present invention is that: through the above structure, the simultaneous locking and unlocking between the first telescopic tube group and the fixed tube group and between the second telescopic tube group and the first telescopic tube group can be achieved by electric drive, thereby realizing the rapid folding and rapid unfolding of the support frame, improving the operating convenience and efficiency of the support frame, and meeting the use requirements.

[0075] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. An electrically driven one-touch elastic support foot, characterized in that: It comprises a first mounting seat (110), a second mounting seat (120), a fixed tube group (200), a first telescopic tube group (300), a second telescopic tube group (400), a transmission shaft (510), a motor (520), a first locking assembly (600), a second locking assembly (700) and a linkage assembly (800); The first mounting seat (110) and the second mounting seat (120) are arranged opposite to each other; The fixed pipe assembly (200) is connected between the first mounting seat (110) and the second mounting seat (120); The first telescopic tube group (300) is movably arranged on the fixed tube group (200) so as to move axially relative to the fixed tube group (200); The second telescopic tube group (400) is movably arranged on the first telescopic tube group (300) so as to move axially relative to the first telescopic tube group (300); The transmission shaft (510) is rotatably connected between the first mounting seat (110) and the second mounting seat (120); The first motor (520) is connected to one end of the transmission shaft (510); The first locking assembly (600) is connected between the fixed tube assembly (200), the first telescopic tube assembly (300) and the transmission shaft (510) and has a locking position and an unlocking position; The second locking assembly (700) is connected between the first telescopic tube set (300) and the second telescopic tube set (400) and has a locking position and an unlocking position; The linkage assembly (800) is connected to the first locking assembly (600) and the second locking assembly (700) respectively, and is used to link the first locking assembly (600) and the second locking assembly (700) to simultaneously enter the locking position or the unlocking position; The motor (520) can drive the first locking assembly (600) and the second locking assembly (700) into a locking position through the transmission shaft (510) when rotating in the forward direction, so as to restrict the movement between the first telescopic tube group (300) and the fixed tube group (200) and restrict the movement between the second telescopic tube group (400) and the first telescopic tube group (300) respectively; or the motor (520) can drive the first locking assembly (600) and the second locking assembly (700) into an unlocking position through the transmission shaft (510) when rotating in the forward direction, so that the first telescopic tube group (300) can move relative to the fixed tube group (200) and the second telescopic tube group (400) can move relative to the first telescopic tube group (300).

2. The electrically driven one-touch elastic support foot according to claim 1, characterized in that: The fixed tube assembly (200) comprises a first fixed tube (210) and a second fixed tube (220) respectively arranged on both sides of the transmission shaft (510); the first locking assembly (600) comprises a first movable seat (610), a worm (620), a worm wheel (630), a transmission assembly (640), a first pressing block (650) and a second pressing block (660); The first movable seat (610) is located between the first fixed tube (210) and the second fixed tube (220) and is movably arranged on the transmission shaft (510) so as to move axially relative to the transmission shaft (510); The worm (620) rotates synchronously with the transmission shaft (510) and can move axially relative to the transmission shaft (510); The worm wheel (630) is disposed on the first movable seat (610) and meshes with the worm (620); The first pressing block (650) and the second pressing block (660) are arranged on both sides of the worm (620); The input end of the transmission assembly (640) is connected to the worm gear (630), the first output end is connected to the first pressing block (650), and the second output end is connected to the second pressing block (660); The worm (620) can drive the first pressure block (650) and the second pressure block (660) to move in opposite directions through the worm wheel (630) and the transmission assembly (640) when the transmission shaft (510) rotates in the forward direction, so that the first pressure block (650) is pressed against the first fixed tube (210) and the second pressure block (660) is pressed against the second fixed tube (220); or the worm (620) can drive the first pressure block (650) and the second pressure block (660) to move in opposite directions through the worm wheel (630) and the transmission assembly (640) when the transmission shaft (510) rotates in the forward direction, so that the first pressure block (650) is separated from the first fixed tube (210) and the second pressure block (660) is separated from the second fixed tube (220).

3. The electrically driven one-touch elastic support foot according to claim 2, characterized in that: The transmission assembly (640) includes a connecting rod (641), a first gear (642), a second gear (643), a third gear (644) and a fourth gear (645); The connecting rod (641) is rotatably arranged on the first movable seat (610), and the worm gear (630) is arranged on the connecting rod (641); The first gear (642) and the second gear (643) are arranged on the connecting rod (641) and are arranged on both sides of the worm gear (630); The third gear (644) is connected to the first pressing block (650) and meshes with the first gear (642); The fourth gear (645) is connected to the second pressing block (660) and meshes with the second gear (643).

4. The electrically driven one-touch elastic support foot according to claim 3, characterized in that: The first movable seat (610) is provided with a switching switch (670) and a clutch assembly (680); The switching switch (670) is axially movably arranged on the connecting rod (641) and has a first state and a second state; the first gear (642) and the second gear (643) are arranged on the switching switch (670); The clutch assembly (680) is connected between the worm gear (630) and the switch (670) and has an engaged position and an active position; The switching switch (670) can rotate synchronously with the worm gear (630) when the clutch assembly (680) is in the engaged position, or the switching switch (670) can switch between the first state and the second state when the clutch assembly (680) is in the active position, and drive the first pressure block (650) and the second pressure block (660) to move in opposite directions when the first state is switched to the second state, and drive the first pressure block (650) and the second pressure block (660) to move in opposite directions when the second state is switched to the first state.

5. The electrically driven one-touch elastic support foot according to claim 4, characterized in that: The clutch assembly (680) comprises a clutch protrusion (681) arranged on the worm gear (630) and a clutch groove (682) arranged on the switch (670); the clutch protrusion (681) is in an engaged position when inserted into the clutch groove (682); and the clutch protrusion (681) is in an active position when separated from the clutch groove (682).

6. The electrically driven one-touch elastic support foot according to claim 4, characterized in that: It also includes a return spring (690) which is sleeved on the connecting rod (641) and abuts against the worm gear (630) and the switching switch (670) respectively.

7. The electrically driven one-touch elastic support foot according to claim 1, characterized in that: The first telescopic tube group (300) comprises a first leg tube (310) and a second leg tube (320) respectively arranged on both sides of the transmission shaft (510); the second telescopic tube group (400) comprises a third leg tube (410) inserted into the first leg tube (310) and a fourth leg tube (420) inserted into the second leg tube (320); the second locking assembly (700) comprises a second movable seat (710), a first limiting sleeve (720) and a second limiting sleeve (730); The second movable seat (710) is arranged at the end of the first telescopic tube group (300); The first limiting sleeve (720) is arranged on the second movable seat (710), the third leg tube (410) is passed through the first limiting sleeve (720), the second limiting sleeve (730) is arranged on the second movable seat (710), and the fourth leg tube (420) is passed through the second limiting sleeve (730); The linkage assembly (800) is connected to the first limiting sleeve (720) and the second limiting sleeve (730); The linkage assembly (800) can drive the first limiting sleeve (720) and the second limiting sleeve (730) to abut against the second movable seat (710) and generate deformation when the transmission shaft (510) rotates in the forward direction, so as to respectively press against the third leg tube (410) and the fourth leg tube (420); or the linkage assembly (800) can drive the first limiting sleeve (720) and the second limiting sleeve (730) to separate from the second movable seat (710) and recover the deformation when the transmission shaft (510) rotates in the reverse direction, so as to respectively separate from the third leg tube (410) and the fourth leg tube (420).

8. The electrically driven one-touch elastic support foot according to claim 1, characterized in that: The linkage assembly (800) comprises a pull rod assembly (810), a first connection assembly (820) and a second connection assembly (830); The first connecting assembly (820) is connected between the first locking assembly (600) and one end of the pull rod assembly (810); The second connecting assembly (830) is connected between the second locking assembly (700) and the other end of the pull rod assembly (810); The first locking assembly (600) can enter the locking position when the transmission shaft (510) rotates forward and drive the pull rod assembly (810) to move upward through the first connecting assembly (820), so as to link the second locking assembly (700) to the locking position through the second connecting assembly (830); or the first locking assembly (600) can enter the unlocking position when the transmission shaft (510) rotates reversely and drive the pull rod assembly (810) to move downward through the first connecting assembly (820), so as to link the second locking assembly (700) to the unlocking position through the second connecting assembly (830).

9. The electrically driven one-touch elastic support foot according to claim 1, characterized in that: A battery assembly (900) electrically connected to the motor (520) is arranged in the fixed tube assembly (200).

10. A support frame, characterized in that: Comprising the supporting foot according to any one of claims 1 to 9.

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