Electric control unlocking and locking supporting leg and supporting frame

Abstract

The utility model discloses an electric control unlocking and locking supporting leg and a supporting frame. The supporting leg comprises a first installation base, a second installation 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 utility model relates to photographic equipment field, especially a kind of electric control unlocking locking support leg and support frame. BACKGROUND

[0002] Mobile phone and camera (or tablet computer, notebook computer etc.) are commonly used equipment in people's daily life and work, in order to facilitate to meet some user's use demand in the aspect of shooting, support frame is used to support shooting equipment when shooting, to facilitate to free user's both hands;Support frame usually includes multiple support legs, and support leg is telescopic, so as to adjust the height of support frame, this telescopic support leg has 3 sections of leg pipe, a set of locking mechanism is arranged between adjacent two sections of leg pipe, each set of locking mechanism has independent locking / unlocking switch, two sets of locking / unlocking switch are opened, to unfold all leg pipes on the support leg, want to unfold entire support frame, then need to open 6 locking / unlocking switches, it is extremely inconvenient to use;Therefore, there is an urgent need for an electric control unlocking locking support leg and support frame to solve the above problems. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art is solved. To this end, the utility model provides an electric control unlocking locking support leg and support frame.

[0004] The technical scheme adopted by one embodiment of the utility model to solve its technical problems is as follows: an electric control unlocking locking support leg, comprising first mounting seat, second mounting seat, fixed pipe group, first telescopic pipe group, second telescopic pipe group, transmission shaft, motor, first locking assembly, second locking assembly and linkage assembly;

[0005] First mounting seat and second mounting seat are arranged oppositely;

[0006] Fixed pipe group is connected between first mounting seat and second mounting seat;

[0007] First telescopic pipe group is movably arranged on fixed pipe group to axially move relative to fixed pipe group;

[0008] Second telescopic pipe group is movably arranged on first telescopic pipe group to axially move relative to first telescopic pipe group;

[0009] Transmission shaft is rotatably connected between first mounting seat and second mounting seat;

[0010] Motor is connected with one end of transmission shaft;

[0011] First locking assembly is connected between fixed pipe group, first telescopic pipe group and transmission shaft and has locking position and unlocking position;

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

[0013] The linkage assembly is connected with the first locking assembly and the second locking assembly respectively, and is used for linking the first locking assembly and the second locking assembly to enter the locking position or the unlocking position simultaneously;

[0014] The motor can drive the first locking assembly and the second locking assembly to enter the locking position through the transmission shaft when rotating in the positive direction, so as to limit the movement between the first telescopic pipe group and the fixed pipe group and limit the movement between the second telescopic pipe group and the first telescopic pipe group respectively; or the motor can drive the first locking assembly and the second locking assembly to enter the unlocking position through the transmission shaft when rotating in the positive direction, so that the first telescopic pipe group can move relative to the fixed pipe group and the second telescopic pipe group can move relative to the first telescopic pipe group.

[0015] As one of the preferred embodiments of the utility model, the fixed pipe group comprises a first fixed pipe and a second fixed pipe arranged on both sides of the transmission shaft, and the first locking assembly comprises 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 pipe and the second fixed pipe 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 is engaged 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 with the worm wheel, the first output end is connected with the first pressing block, and the second output end is connected with the second pressing block;

[0021] The worm can drive the first pressing block and the second pressing block to move away from each other through the worm wheel and the transmission assembly when the transmission shaft rotates in the positive direction, so that the first pressing block abuts against the first fixed pipe and the second pressing block abuts against the second fixed pipe; or the worm can drive the first pressing block and the second pressing block to move towards each other through the worm wheel and the transmission assembly when the transmission shaft rotates in the positive direction, so that the first pressing block is separated from the first fixed pipe and the second pressing block is separated from the second fixed pipe.

[0022] As one of the preferred embodiments of the utility model, the transmission assembly comprises 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 wheel 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 wheel.

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

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

[0027] As one of the preferred embodiments of the utility model, a switching switch and a clutch assembly are arranged on the first movable seat;

[0028] The switching switch is arranged on the connecting rod in an axial direction and has a first state and a second state, and the first gear and the second gear are arranged on the switching switch;

[0029] The clutch assembly is connected between the worm gear and the switching switch and has an engagement position and a movable position;

[0030] The switching switch can rotate synchronously with the worm gear when the clutch assembly is in the engagement position, or the switching switch can switch between the first state and the second state when the clutch assembly is in the movable position, and drive the first pressing block and the second pressing block to move away from each other when switching from the first state to the second state and drive the first pressing block and the second pressing block to move towards each other when switching from the second state to the first state.

[0031] As one of the preferred embodiments of the utility model, the clutch assembly includes a clutch protrusion arranged on the worm gear and a clutch groove arranged on the switching switch, and the clutch protrusion is in the engagement position when inserted into the clutch groove, and the clutch protrusion is in the movable position when separated from the clutch groove.

[0032] As one of the preferred embodiments of the utility model, the electric control unlocking and locking support foot further includes a reset spring sleeved on the connecting rod and abutting against the worm gear and the switching switch.

[0033] As one of the preferred embodiments of the utility model, the first telescopic pipe group includes a first foot pipe and a second foot pipe arranged on both sides of the transmission shaft, the second telescopic pipe group includes a third foot pipe inserted into the first foot pipe and a fourth foot pipe inserted into the second foot pipe, 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 pipe group;

[0035] The first limiting sleeve is arranged on the second movable seat, the third foot pipe is arranged on the first limiting sleeve, the second limiting sleeve is arranged on the second movable seat, and the fourth foot pipe is arranged on the second limiting sleeve;

[0036] The linkage assembly is connected with 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 a forward direction, so as to abut against the third leg pipe and the fourth leg pipe respectively; or the linkage assembly can drive the first limiting sleeve and the second limiting sleeve to separate from the second movable seat and deform to recover when the transmission shaft rotates in a reverse direction, so as to separate from the third leg pipe and the fourth leg pipe respectively.

[0038] As one of the preferred embodiments of the utility model, the linkage assembly comprises a pull rod assembly, a first connecting assembly and a second connecting 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 and drive the pull rod assembly to move upward through the first connecting assembly when the transmission shaft rotates in a forward direction, so as to drive the second locking assembly to enter the locking position through the second connecting assembly; or the first locking assembly can enter the unlocking position and drive the pull rod assembly to move downward through the first connecting assembly when the transmission shaft rotates in a reverse direction, so as to drive the second locking assembly to enter the unlocking position through the second connecting assembly.

[0042] As one of the preferred embodiments of the utility model, the fixed pipe group is provided with a battery assembly electrically connected with the motor.

[0043] A support frame comprising the support leg.

[0044] The utility model discloses an electric control unlocking support leg and support frame, and the support leg comprises a first mounting seat, a second mounting seat, a fixed pipe group, a first telescopic pipe group, a second telescopic pipe group, a transmission shaft, a motor, a first locking assembly, a second locking assembly and a linkage assembly. BRIEF DESCRIPTION OF DRAWINGS

[0045] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0046] Figure 1 It is a kind of support frame in the structure schematic diagram under the state of folding;

[0047] Figure 2 It is a kind of support frame in the structure schematic diagram under the state of unfolding;

[0048] Figure 3A exploded view of an electrically controlled unlocking support foot;

[0049] Figure 4 A sectional view of a support frame in a folded state; Figure 3 A partial enlarged view of area A in the middle;

[0050] Figure 5 A sectional view of a support frame in a folded state;

[0051] Figure 6 A sectional view of a support frame in a folded state; Figure 5 A partial enlarged view of area B in the middle;

[0052] Figure 7 A sectional view of a support frame in a folded state; Figure 5 A partial enlarged view of area C in the middle. DETAILED DESCRIPTION

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

[0054] In the description of the present application, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number, above, below, etc. is included in the number. If there is a description of the first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0055] In the description of the present application, it is understood that the position description, such as the position or location relationship indicated by up, down, front, back, left, right, etc. is based on the position or location relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, therefore it cannot be understood as a limitation on the present application.

[0056] In the present application, unless otherwise explicitly limited, the words "set", "install", "connect" and the like should be broadly understood, for example, they can be directly connected, or indirectly connected through an intermediate medium; can be fixedly connected, or can be detachably connected, or can be integrally formed; can be mechanically connected; can be the internal communication or interaction relationship of two elements. The skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0057] 1) Refer to Figures 1-2And 5, in the utility model, with three support legs rotatingly connected to the three support legs as an example to be described, wherein each support leg comprises a first mounting base 110, a second mounting base 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 base 110 and the second mounting base 120 are oppositely arranged; the fixed pipe group 200 is connected between the first mounting base 110 and the second mounting base 120; the first telescopic pipe group 300 is movably arranged on the fixed pipe group 200 to axially move relative to the fixed pipe group 200; the second telescopic pipe group 400 is movably arranged on the first telescopic pipe group 300 to axially move relative to the first telescopic pipe group 300; the transmission shaft 510 is rotatably connected between the first mounting base 110 and the second mounting base 120; the motor 520 is connected with one end of the transmission shaft 510; the first locking assembly 600 is connected between the fixed pipe group 200, the first telescopic pipe 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 pipe group 300 and the second telescopic pipe group 400 and has a locking position and an unlocking position; the linkage assembly 800 is connected with the first locking assembly 600 and the second locking assembly 700 respectively, for linkage of the first locking assembly 600 and the second locking assembly 700 to simultaneously enter the locking position or the unlocking position.

[0058] Specifically, when the support leg needs to be unfolded, power is input through the motor 520, when the motor 520 reversely rotates, the first locking assembly 600 is driven to enter the unlocking position, and the second locking assembly 700 is linked with the first locking assembly 600 through the linkage assembly 800, so that the second locking assembly 700 also enters the unlocking position, the first telescopic pipe group 300 can move relative to the fixed pipe group 200, and the second telescopic pipe group 400 can move relative to the first telescopic pipe group 300, so that the support leg can be unfolded or folded; when the support leg is unfolded or folded, the motor 520 is reversely rotated, the first locking assembly 600 is driven to enter the locking position through the transmission shaft 510, and the second locking assembly 700 also enters the locking position under the action of the linkage assembly 800, so that the movement between the first telescopic pipe group 300 and the fixed pipe group 200 and the movement between the second telescopic pipe group 400 and the first telescopic pipe group 300 are respectively limited, and the support frame is kept in the unfolded state or the folded state.

[0059] 2) Refer to Figures 3-4In some embodiments, the fixed pipe group 200 comprises a first fixed pipe 210 and a second fixed pipe 220 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 pipe 210 and the second fixed pipe 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 is engaged 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 with the worm wheel 630, the first output end is connected with the first pressing block 650, and the second output end is connected with the second pressing block 660.

[0060] Specifically, when the motor 520 drives the transmission shaft 510 to rotate forward, the worm 620 will rotate synchronously, and the worm 620 is connected with the transmission shaft 510 through the axially arranged guide structure, so that the worm 620 can rotate synchronously with the transmission shaft 510 and can move axially relative to the transmission shaft 510; further, when the worm 620 rotates, the worm wheel 630 will be driven to rotate, and then the first pressing block 650 and the second pressing block 660 are driven to move away from each other through the transmission assembly 640; it should be noted that the first pressing block 650 and the second pressing block 660 are connected with the transmission assembly 640 through threads, and the first pressing block 650 and the second pressing block 660 are connected with the first movable seat 610 through horizontal guide structure, which can convert the rotary motion of the first pressing block 650 and the second pressing block 660 into linear motion in the horizontal direction, so that the first pressing block 650 abuts against the first fixed pipe 210 and the second pressing block 660 abuts against the second fixed pipe 220, thereby realizing the restriction of the relative motion between the first movable seat 610 (the first telescopic pipe group 300) and the fixed pipe group 200; when the motor 520 drives the transmission shaft 510 to rotate reversely, the first pressing block 650 and the second pressing block 660 will be driven to move towards each other through the worm 620, the worm wheel 630 and the transmission assembly 640, so that the first pressing block 650 is separated from the first fixed pipe 210 and the second pressing block 660 is separated from the second fixed pipe 220, and at this time the first movable seat 610 (the first telescopic pipe group 300) can move relative to the fixed pipe group 200.

[0061] 3) with reference to Figures 3-4In some embodiments, the transmission assembly 640 comprises 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 rotationally 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 the two sides of the worm gear 630; the third gear 644 is connected with the first pressing block 650 and is engaged with the first gear 642; and the fourth gear 645 is connected with the second pressing block 660 and is engaged with the second gear 643.

[0062] Specifically, when the worm gear 630 rotates, the first gear 642 and the second gear 643 will be driven to rotate at the same time, the first gear 642 drives the third gear 644 to rotate, and the second gear 643 drives the fourth gear 645 to rotate, so as to finally realize the opposite movement or the opposite movement between the first pressing block 650 and the second pressing block 660.

[0063] 4) Refer to Figures 1-6 In some embodiments, 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; and the clutch assembly 680 is connected between the worm gear 630 and the switching switch 670 and has an engagement position and a movable position.

[0064] Specifically, the switching switch 670 is used as a backup of the electric drive type unlocking and locking, and is a manual type unlocking and locking, which can manually unlock and lock the supporting foot when the electric drive type unlocking and locking fails; further, the switching switch 670 is provided as a buckle, in the electric drive type unlocking and locking mode, the clutch assembly 680 is in the engagement position, that is, the switching switch 670 is linked with the worm gear 630, so that the motor 520 drives the switching 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 type unlocking and locking, the switching switch 670 will also act; when the electric drive type unlocking and locking fails, the switching switch 670 can be axially slid to make the clutch assembly 680 enter the movable position, 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, when the switching switch 670 is switched from the first state to the second state, the first pressing block 650 and the second pressing block 660 are driven to move away from each other, and when the switching switch 670 is switched from the second state to the first state, the first pressing block 650 and the second pressing block 660 are driven to move towards each other.

[0065] 5) Refer to Figures 3-4In some embodiments, the clutch assembly 680 comprises a clutch protrusion 681 arranged on the worm wheel 630 and a clutch groove 682 arranged on the switch 670, the clutch protrusion 681 is in the engaged position when inserted into the clutch groove 682, and the clutch protrusion 681 is in the active position when separated from the clutch groove 682.

[0066] 6) Refer to Figures 3-4 In some embodiments, the electrically controlled unlocking support foot further comprises a reset spring 690 sleeved on the connecting rod 641 and abutting against the worm wheel 630 and the switch 670 respectively; by arranging the reset spring 690, the clutch assembly 680 can be kept in the engaged position in the electrically driven unlocking mode, and only when the switch 670 is pulled and the frictional force and the elastic force of the reset spring 690 are overcome, the clutch assembly 680 enters the active position.

[0067] 7) Refer to Figure 5 And Figure 7 In some embodiments, the first telescopic tube group 300 comprises a first foot tube 310 and a second foot tube 320 arranged on both sides of the transmission shaft 510, the second telescopic tube group 400 comprises a third foot tube 410 inserted into the first foot tube 310 and a fourth foot tube 420 inserted into the second foot tube 320, and 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 foot tube 410 is inserted into the first limiting sleeve 720, the second limiting sleeve 730 is arranged on the second movable seat 710, and the fourth foot tube 420 is inserted into the second limiting sleeve 730; the linkage assembly 800 is connected with 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, the first locking assembly 600 will be driven to the locking position, and the first limiting sleeve 720 and the second limiting sleeve 730 will be driven to move upward by the linkage assembly 800, so that the first limiting sleeve 720 and the second limiting sleeve 730 abut against the second movable seat 710. The first limiting sleeve 720 and the second limiting sleeve 730 are composed of a plurality of clamping pieces, the outer wall of the clamping pieces is provided with a first inclined surface, the inner wall of the second movable seat 710 is provided with a first wedge block 910 and a second wedge block 920, the first wedge block 910 and the second wedge block 920 are provided with a second inclined surface abutting against the first inclined surface, and the clamping pieces are deformed by the cooperation between the first inclined surface and the second inclined surface, so as to tightly clamp the third leg pipe 410 and the fourth leg pipe 420, respectively; or when the motor 520 drives the transmission shaft 510 to rotate reversely, the first locking assembly 600 will be driven to the unlocking position, and the first limiting sleeve 720 and the second limiting sleeve 730 will be driven to move downward by the linkage assembly 800, so that the first limiting sleeve 720 and the second limiting sleeve 730 abut against the second movable seat 710. At this time, the first inclined surface and the second inclined surface are separated, the clamping pieces lose external force and deform to recover, so that the first limiting sleeve 720 and the second limiting sleeve 730 are separated from the third leg pipe 410 and the fourth leg pipe 420, respectively.

[0069] 8) Refer to Figure 5 and Figure 6 In some embodiments, the linkage assembly 800 includes a pull rod assembly 810, a first connecting assembly 820 and a second connecting 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.

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

[0071] 9) Refer toFigure 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, one end of the first U-shaped rod 821 and one end of the second U-shaped rod 822 are rotatably connected with the first locking assembly 600, specifically, one end of the first U-shaped rod 821 is rotatably connected with the third gear 644, and one end of the second U-shaped rod 822 is rotatably connected with the fourth gear 645; further, the other end of the first U-shaped rod 821 is rotatably connected with one end of the first pull rod 811, and the other end of the second U-shaped rod 822 is rotatably connected with one end of the second pull rod 812, so that when the third gear 644 and the fourth gear 645 rotate, the first pull rod 811 and the second pull rod 812 are driven to move upward or downward by the first U-shaped rod 821 and the second U-shaped rod 822 respectively, realizing 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, the first pull sleeve 831 is connected with the other end of the pull rod assembly 810 and the second locking assembly 700 respectively; specifically, the first pull sleeve 831 is connected with the first limiting sleeve 720, and the second pull sleeve 832 is connected with the second limiting sleeve 730, which can pull the first limiting sleeve 720 and the second limiting sleeve 730 upward or push the first limiting sleeve 720 and the second limiting sleeve 730 downward; in other embodiments, a first adjusting knob 930 threadedly connected with the first pull sleeve 831 and a second adjusting knob 940 threadedly connected with the second pull sleeve 832 are further included, the first adjusting knob 930 and the second adjusting knob 940 are rotated to adjust the locking degree of the first limiting sleeve 720 and the second limiting sleeve 730 on the foot tube.

[0073] 10)Refer to Figure 5 And Figure 7 In some embodiments, the fixed tube group 200 is provided with a battery assembly 900 electrically connected with the motor 520; specifically, the battery assembly 900 is arranged in the first fixed tube 210 and / or the second fixed tube 220, and is detachably connected, which not only can hide and store the battery assembly 900 through the first fixed tube 210 and / or the second fixed tube 220, avoiding affecting the aesthetic appearance due to the battery assembly 900 or the external convex, but also can facilitate the user to replace the battery assembly 900 in time when it is out of power, improving the convenience of use; further, a locking button 950 and an unlocking button 960 electrically connected with the motor 520 are arranged, which can control the forward rotation and reverse rotation of the motor 520 respectively; of course, the three motors 520 on the three supporting feet are controlled by the same locking button 950 and unlocking button 960, realizing one-key type unlocking and locking of the three supporting feet.

[0074] 11) The utility model discloses the advantage lies in: through above -mentioned structure can with the electric drive mode realization first telescopic pipe group with fixed pipe group between and second telescopic pipe group with first telescopic pipe group between the simultaneous locking and simultaneous unlocking, further realizes the quick folding and quick unfolding of support frame, improves the operation convenience and efficiency of support frame, satisfies the use demand.

[0075] Of course, the utility model is not limited to the above-mentioned embodiment, and those skilled in the art can make equivalent transformations or replacements without departing from the spirit of the utility model, and these equivalent transformations and replacements are all included in the range defined by the claims of the present application.

Claims

1. An electrically controlled unlocking and locking support foot, characterized by: The utility model relates to a telescopic pipe assembly, which comprises a first mounting base (110), a second mounting base (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 base (110) and the second mounting base (120) are arranged oppositely. The fixed pipe group (200) is connected between the first mounting base (110) and the second mounting base (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 first telescopic pipe group (300) to move axially relative to the first telescopic pipe group (300). The transmission shaft (510) is rotatably connected between the first mounting base (110) and the second mounting base (120). The motor (520) is connected to one end of the transmission shaft (510). The first locking assembly (600) is connected between the fixed pipe group (200), the first telescopic pipe 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 pipe group (300) and the second telescopic pipe group (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 to link the first locking assembly (600) and the second locking assembly (700) to enter the locking position or the unlocking position simultaneously. When the motor (520) rotates in a forward direction, the first locking assembly (600) and the second locking assembly (700) are driven by the transmission shaft (510) to enter the locking position, so as to limit the movement between the first telescopic pipe group (300) and the fixed pipe group (200) and the movement between the second telescopic pipe group (400) and the first telescopic pipe group (300) respectively; or when the motor (520) rotates in a forward direction, the first locking assembly (600) and the second locking assembly (700) are driven by the transmission shaft (510) to enter the unlocking position, so that the first telescopic pipe group (300) can move relative to the fixed pipe group (200) and the second telescopic pipe group (400) can move relative to the first telescopic pipe group (300).

2. An electrically controlled unlocking and locking support foot according to claim 1, characterized in that: The fixed pipe group (200) comprises a first fixed pipe (210) and a second fixed pipe (220) arranged on both sides of the transmission shaft (510), and 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 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 moves axially relative to the transmission shaft (510); The worm gear (630) is arranged on the first movable seat (610) and engaged with the worm (620); The first pressing block (650) and the second pressing block (660) are arranged on the two sides of the worm (620); The input end of the transmission assembly (640) is connected with the worm gear (630), the first output end is connected with the first pressing block (650), and the second output end is connected with the second pressing block (660); When the transmission shaft (510) rotates forward, the worm (620) drives the first pressing block (650) and the second pressing block (660) to move away from each other through the worm gear (630) and the transmission assembly (640), so that the first pressing block (650) abuts against the first fixed tube (210) and the second pressing block (660) abuts against the second fixed tube (220); or when the transmission shaft (510) rotates forward, the worm (620) drives the first pressing block (650) and the second pressing block (660) to move towards each other through 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).

3. An electrically controlled unlocking and locking support foot according to claim 2, characterized in that: The transmission assembly (640) comprises 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 arranged on the two sides of the worm gear (630); The third gear (644) is connected with the first pressing block (650) and engaged with the first gear (642); The fourth gear (645) is connected with the second pressing block (660) and engaged with the second gear (643).

4. An electrically controlled unlocking and locking 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, and 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 switching switch (670) and has an engagement position and a movable position. The switching switch (670) can rotate synchronously with the worm gear (630) when the clutch assembly (680) is in the engagement position, or the switching switch (670) can switch between a first state and a second state when the clutch assembly (680) is in the active position, and drive the first pressing block (650) and the second pressing block (660) to move away from each other when switching from the first state to the second state, and drive the first pressing block (650) and the second pressing block (660) to move towards each other when switching from the second state to the first state.

5. An electrically controlled unlocking and locking support foot according to claim 4, characterized in that: The clutch assembly (680) includes a clutch protrusion (681) arranged on the worm gear (630) and a clutch groove (682) arranged on the switching switch (670), and the clutch protrusion (681) is in the engagement position when inserted into the clutch groove (682), and the clutch protrusion (681) is separated from the clutch groove (682) when in the active position.

6. An electrically controlled unlocking and locking support foot according to claim 4, characterized in that: Further comprising a reset spring (690) sleeved on the connecting rod (641) and abutting against the worm gear (630) and the switching switch (670) respectively.

7. An electrically controlled unlocking and locking support foot according to claim 1, characterized in that: The first telescopic tube group (300) includes a first foot tube (310) and a second foot tube (320) arranged on both sides of the transmission shaft (510), the second telescopic tube group (400) includes a third foot tube (410) inserted into the first foot tube (310) and a fourth foot tube (420) inserted into the second foot tube (320), and 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 foot tube (410) is arranged on the first limiting sleeve (720), the second limiting sleeve (730) is arranged on the second movable seat (710), and the fourth foot tube (420) is arranged on the second limiting sleeve (730); The linkage assembly (800) is connected with 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 deform when the transmission shaft (510) rotates in the forward direction, so as to abut against the third foot tube (410) and the fourth foot tube (420) respectively; 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 deform to recover when the transmission shaft (510) rotates in the reverse direction, so as to separate from the third foot tube (410) and the fourth foot tube (420) respectively.

8. An electrically controlled unlocking and locking support foot according to claim 1, characterized in that: The linkage assembly (800) includes a pull rod assembly (810), a first connecting assembly (820), and a second connecting 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 forwardly and drive the pull rod assembly (810) to move upwardly through the first connecting assembly (820) to link the second locking assembly (700) to enter 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 downwardly through the first connecting assembly (820) to link the second locking assembly (700) to enter the unlocking position through the second connecting assembly (830).

9. An electrically controlled unlocking and locking support foot according to claim 1, characterized in that: The fixed tube group (200) is provided with a battery assembly (900) electrically connected with the motor (520).

10. A support frame characterized by: A support foot according to any one of claims 1-9.

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