CN113639166A

CN113639166A - Convenient folding leg

Info

Publication number: CN113639166A
Application number: CN202110896893.2A
Authority: CN
Inventors: 常晓杰
Original assignee: Anhui Hongjie Ergonomics Technology Co Ltd
Current assignee: Anhui Hongjie Ergonomics Technology Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-11-12
Also published as: WO2023010775A1

Abstract

The invention discloses a convenient folding leg, which comprises a support base, rotating shaft seats and folding legs, wherein at least two rotating shaft seats can be rotatably arranged on the support base around a vertical rotating shaft extending along the vertical direction, the folding legs can be rotatably arranged on the rotating shaft seats around a horizontal rotating shaft extending along the horizontal direction, the folding legs and the rotating shaft seats are arranged in a one-to-one correspondence mode, the upper side surfaces of the folding legs can be stopped at the lower side surface of the support base, an avoiding notch is further formed in the outer side wall of the circumference of the support base, the rotating shaft seats can enable the folding legs to be opposite to the avoiding notch through rotation, and the folding legs can be turned upwards through the avoiding notch through rotation of the horizontal rotating shaft.

Description

Convenient folding leg

Technical Field

The invention relates to a support, in particular to a convenient folding leg.

Background

The floor type television support is often adopted to install a large television or a display in public places such as meeting rooms, and the television or the display is heavy and long in torque, so that the base is required to have enough large supporting torque to stably support.

Disclosure of Invention

In order to overcome the defects, the invention provides the convenient folding leg which can facilitate the storage and transportation of the floor type television bracket and is convenient to use.

The technical scheme adopted by the invention for solving the technical problem is as follows: the utility model provides a convenient folding leg, includes support base, pivot seat and folding leg, and two at least pivot seats can be around the vertical pivot pivoted that extends along vertical direction installing on support base, and folding leg can be around the horizontal rotating shaft pivoted that extends along the horizontal direction installing on the pivot seat, folding leg and pivot seat one-to-one set up, folding leg upside surface can stop in support base downside surface, still is equipped with on the support base circumference lateral wall and dodges the breach, and the pivot seat rotates and to make folding leg just right with dodging the breach, and folding leg can warp around horizontal rotating shaft it turns up to dodge the breach.

As a further improvement of the invention, the folding leg is provided with a first buckle device, the bracket base is provided with a second buckle device, and the first buckle device and the second buckle device can be buckled and connected when the folding leg stops at the lower side surface of the bracket base.

As a further improvement of the present invention, the first fastening device is a slot or a boss located on the upper surface of the folding leg and extending along the longitudinal direction, and the second fastening device is a boss or a slot located on the lower surface of the bracket base and extending along the longitudinal direction, wherein the boss can be inserted into the slot.

As a further improvement of the invention, the side wall of the rotating shaft seat along the rotating direction of the folding leg is provided with a folding limiting buckle, the folding leg is provided with an adjusting fastener, and when the folding leg is in an upwards-turned folding state, the adjusting fastener is just buckled and connected with the folding limiting buckle.

As a further improvement of the invention, the side wall of the rotating shaft seat along the rotating direction of the folding leg is also provided with an unfolding limit buckle, and when the folding leg is in an unfolding supporting state, the adjusting fastener is just buckled and connected with the unfolding limit buckle.

As a further improvement of the present invention, the folding limit buckle and the unfolding limit buckle on the rotating shaft seat are two slot structures arranged at intervals along the rotating direction of the folding leg, and the adjusting fastener on the folding leg is an elastic pin which can be inserted into the slot structures.

As a further improvement of the invention, the elastic pin can be rotatably arranged on the side wall of the folding leg around the horizontal hinged shaft, one side of the circumferential outer side wall of the elastic pin is provided with a ball head structure, the folding leg is provided with an elastic part, and the elastic part provides elastic retaining force for keeping the ball head structure on the elastic pin and the side wall where the rotating shaft seat clamping groove structure is located to be tightly attached.

As a further improvement of the invention, the other side of the circumferential outer side wall of the elastic pin forms a tail rod structure, the elastic part is a torsion spring, the torsion spring is sleeved on the horizontal articulated shaft of the elastic pin, one end of the torsion spring is fixedly connected with the supporting leg, and the other end of the torsion spring is tightly propped against the upper side surface of the tail rod structure on the other side of the circumferential outer side wall of the elastic pin.

As a further improvement of the invention, a shaft sleeve structure is arranged on the rotating shaft seat, a threaded hole is arranged on the lower side surface of the support base, and a cylindrical step screw is also arranged, a cylindrical part of the cylindrical step screw penetrates through the shaft sleeve structure of the rotating shaft seat, and a stud part of the cylindrical step screw is in threaded connection with the threaded hole on the direct base.

As a further improvement of the invention, the support base forms an I-shaped structure, the concave parts at the two sides of the I-shaped structure form an avoidance gap, the support base is also provided with a box body structure, the box body structure is provided with an outward expansion panel corresponding to the side wall with wide size of the support base, and the folded legs are just positioned at the back of the outward expansion panel.

The invention has the beneficial effects that: according to the invention, the rotating shaft seat capable of rotating around the vertical shaft is arranged on the support base, the folding legs capable of rotating and folding around the horizontal rotating shaft are arranged on the rotating shaft seat, and the avoidance notch is arranged on the support base, so that the rotating shaft seat can be rotated to enable the folding legs to be in the folding position or the unfolding position, the folding legs can be quickly folded and stably unfolded and supported, and the folding legs can be buckled, connected and positioned in different states on the support through arranging a plurality of groups of buckling devices, and the stable support and the stable folding state of the folding legs can be realized.

Drawings

FIG. 1 is an exploded perspective view of the present invention;

FIG. 2 is a perspective view of the present invention in an expanded, supported state;

FIG. 3 is a front view of the structural principle of the present invention in an expanded support state;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic bottom view of the present invention in an expanded support configuration;

FIG. 6 is a front view of the starting adjustment state of the present invention;

FIG. 7 is an enlarged view of portion B of FIG. 6;

FIG. 8 is a perspective view of the folding leg of the present invention in a state of being aligned with an avoidance gap;

FIG. 9 is a schematic view of the folded leg of the present invention in an upturned position;

FIG. 10 is an enlarged view of portion C of FIG. 9;

FIG. 11 is a schematic view of the folding leg of the present invention in a folded condition;

FIG. 12 is an enlarged view of portion D of FIG. 11;

FIG. 13 is a first perspective view of the folding leg of the present invention in a folded condition;

FIG. 14 is a second perspective view of the folding leg of the present invention in a folded condition

Fig. 15 is a perspective view of the present invention in use.

Detailed Description

Example (b): the utility model provides a convenient folding leg, includes support base 1, pivot seat 2 and folding leg 3, and two at least pivot seats 2 can be around installing on support base 1 along vertical direction extending vertical pivot 4 pivoted, and folding leg 3 can be around installing on pivot seat 2 along horizontal direction extending horizontal pivot 5 pivoted, folding leg 3 sets up with pivot seat 2 one-to-one, and 3 side surfaces of folding leg can backstop in support base 1 side surface, still are equipped with on the 1 circumference lateral wall of support base and dodge breach 6, and pivot seat 2 rotates and to make folding leg 3 just right with dodging breach 6, and folding leg 3 can pass through around 5 rotations of horizontal pivot dodge breach 6 and turn over upward.

The stand column of the floor type television bracket is arranged on the upper side of a bracket base 1, the bracket base 1 realizes stable support through the expansion of a folding leg 3, the folding of the folding leg 3 realizes storage or the support of a small-size television, when the bracket is expanded, a rotating shaft base 2 is horizontally rotated to ensure that the folding leg 3 on the rotating shaft base is just staggered with an avoidance notch 6 of the bracket base 1, the upper side surface of the folding leg 3 is blocked by the lower side surface of the bracket base 1 at the moment and cannot be turned upwards, and further the horizontal expansion state is kept, the included angle between the folding leg 3 and the horizontal plane can be adjusted through the blocking height of the bracket base 1 to the folding leg 3 when the folding leg 3 is expanded, and a universal wheel 15 is generally arranged at one end of the folding leg 3, which is far away from the rotating shaft base 2, and is used for easily realizing the pushing of the bracket to change the parking position; when folding, the level rotates pivot seat 2 and makes folding leg 3 above that just right with support base 1 dodge breach 6, the side loses the blockking of support base 1 downside on folding leg 3 this moment, can upwards rotate folding leg 3 and realize turning over a book, folding back has reduced support base 1's horizontal and longitudinal dimension greatly, occupation space is little, be convenient for the small space to place or accomodate, folding leg 3 best symmetry sets up three or four, also can more, be used for improving support stability, this kind of structure makes console mode TV set support application scope wide, it is nimble to use, be convenient for accomodate, be convenient for transport and carry.

The folding leg 3 is provided with a first buckle device 7, the support base 1 is provided with a second buckle device 8, and the folding leg 3 can be buckled and connected with the first buckle device 7 and the second buckle device 8 when being stopped at the lower side surface of the support base 1. When folding leg 3 is in the expansion support state, be connected with 8 locks of second buckle device through first buckle device 7, realize the fixed of folding leg 3 position, it drives pivot seat 2 around vertical pivot 4 rotation to avoid folding leg 3 to receive the external force mistake to bump the back, lead to folding leg 3 and dodge breach 6 just right and take place folding, lose the supporting role, ensure the outrigger of support, avoid taking place the accident of turning on one's side, during folding, release

first buckle device

7 and 8 locks of second buckle device earlier, then realize folding rotating pivot seat 2.

The first buckle device 7 is a slot or a convex column which is positioned on the upper side surface of the folding leg 3 and extends along the longitudinal direction, the second buckle device 8 is a convex column or a slot which is positioned on the lower side surface of the bracket base 1 and extends along the longitudinal direction, and the convex column can be inserted into the slot. Through projection and slot vertically peg graft, realize folding leg 3 and support base 1 at the locking location of horizontal direction, the slot best is the opening size and is greater than the toper structure of bottom size, and the projection is the toper post structure that matches with it, and the two passes through the cooperation of toper face, can realize pegging graft fast, and during folding, earlier with folding leg 3 certain angle of overturning downwards, make slot and projection break away from, then realize folding rotating shaft seat 2.

The pivot seat 2 is equipped with folding spacing buckle 9 on the lateral wall along folding leg 3 rotation direction, be equipped with adjusting fastener 10 on folding leg 3, folding leg 3 is in when the fold condition that turns over the book upwards, adjusting fastener 10 just is connected with folding spacing buckle 9 lock. When the folding legs 3 are folded upwards, the adjusting fasteners 10 on the folding legs are buckled and connected with the folding limiting buckles 9 on the rotating shaft seat 2, so that the folding legs 3 are kept in a stable folding state and are prevented from falling.

The side wall of the rotating shaft seat 2 along the rotating direction of the folding legs 3 is also provided with an unfolding limit buckle 11, and when the folding legs 3 are in an unfolding supporting state, the adjusting fastener 10 is just connected with the unfolding limit buckle 11 in a buckling manner. When folding leg 3 is in the expansion support state, also through adjusting fastener 10 and expanding spacing buckle 11 lock connection further improve folding leg 3 at the steady support of expansion support state, only can realize folding after expanding spacing buckle 11 and adjusting fastener 10 dropout, avoid taking place the maloperation, simultaneously, also can be at 3 stable level unchangeable of folding leg expansion state holding, when moving the console mode support, folding leg 3 can not receive the action of gravity flagging, ensure that folding leg 3 all the time keeps stable support state after any operation, the safety in utilization of console mode TV set support has been improved.

Folding limit buckle 9 and expansion limit buckle 11 are two draw-in groove structures that are arranged along folding leg 3 rotation direction interval on pivot seat 2, and regulation fastener 10 on folding leg 3 is the elastic pin, the elastic pin can insert and locate draw-in groove structure in. Realize through the elastic pin elastic force with the automatic lock of draw-in groove structure, when realizing folding leg 3 and opening or folding when needing to thread off, only need operation regulation fastener 10 overcome the elastic force with folding spacing buckle 9 or expand spacing buckle 11 and thread off can, adjust fastener 10 lose behind the artificial external force, can paste tight pivot seat 2 surfaces automatically under the elastic force effect, when it with folding spacing buckle 9 or expand spacing buckle 11 just to the time, can realize automatic lock and connect, ensure safe in utilization, avoid appearing forgetting to reset and the safety problem appears.

The elastic pin can rotate around the horizontal hinged shaft and is arranged on the side wall of the folding leg 3, one side of the circumferential outer side wall of the elastic pin is provided with a ball head structure, the folding leg 3 is provided with an elastic part, and the elastic part provides elastic retaining force for keeping the side wall, where the ball head structure is tightly attached to the side wall of the clamping groove structure of the rotating shaft seat 2, of the elastic pin. The elastic pin rotates around a horizontal shaft along with the folding leg 3, the ball head on one side of the elastic pin receives the resistance effect of the side wall of the clamping groove structure on the rotating shaft seat 2 and overcomes the elastic force to rotate around a horizontal hinged shaft, when the folding leg 3 rotates in place, the elastic pin automatically resets under the action of the elastic force to keep the buckling state of opposite insertion with the clamping groove structure on the rotating shaft seat 2, and then the buckling or tripping of the elastic pin and the clamping groove structure on the rotating shaft seat 2 is realized, the best clamping groove structure is an arc-shaped groove matched with the best clamping groove structure, the best cambered surface extending longitudinally is arranged on the rotating shaft seat 2, the ball head on one side of the elastic pin can slide along the cambered surface, the clamping groove structures on the rotating shaft seat 2 are arranged at two ends of the cambered surface, the elastic pin can also be of a linear telescopic structure, and the buckling connection or tripping with the folding limit buckle 9 and the unfolding limit buckle 11 is realized through the telescopic action of the elastic pin.

The opposite side of elastic pin circumference lateral wall forms the tail-stock structure, and the elastic component is

torsional spring

12, and 12 covers of torsional spring locate the horizontal articulated shaft of elastic pin on, and 12 one ends of torsional spring link firmly with the supporting leg, and the 12 other ends of torsional spring tightly support on the tail-stock structure side surface of elastic pin circumference lateral wall opposite side. Except adopting torsional spring 12 to realize the elastic pin and reseing, can also realize through extension spring or pressure spring, this for the equivalent alternative structure that this technical staff in the field thought very easily according to this patent belongs to this patent protection scope, and folding leg 3 forms U-shaped open structure towards 2 one end optimumly of pivot seat, and 2 lateral walls of pivot seat can insert and locate in the U-shaped structure, horizontal rotating shaft 5 installs on U-shaped structure both sides wall, and the elastic pin also locates in the U-shaped open structure of folding leg 3, and the tail-bar structure on the elastic pin can stretch out the U-shaped open slot structure outside, can set up the finger on the tail-bar structure and press the splenium for carry out manual operation to the elastic pin, realize artifical dropout, realize folding and expansion operation.

Be equipped with the axle sleeve structure on the pivot seat 2, be equipped with the screw hole on the side under the support base 1, still be equipped with the cylinder step screw, the cylinder portion of cylinder step screw is worn to locate in the axle sleeve structure of pivot seat 2, the double-screw bolt portion of cylinder step screw and the screw hole spiro union on the direct base. Cylindrical step screw just forms vertical pivot 4 in this structure, and through cylindrical step screw fixation back, the downside of support base 1 can be located in the rotation of pivot seat 2 fixed point. In addition, the rotating shaft base 2 can be riveted on the bracket base 1 by riveting, and the rivet becomes the vertical rotating shaft 4, which is an equivalent structure that can be easily imagined by those skilled in the art according to the patent and belongs to the protection scope of the patent.

The support base 1 forms an I-shaped structure, the concave parts on two sides of the I-shaped structure form an avoiding notch 6, a box body structure 13 is further arranged on the support base 1, an outer expanding panel 14 corresponding to the side wall of the support base 1 with the wide size is formed on the box body structure 13, and the folding legs 3 are just positioned on the back of the outer expanding panel 14 after being folded. Form box structure 13 on support base 1 and can form outer expanding panel 14 with placing electronic components etc. on the box, form the support openly by outer expanding panel 14, make the support more pleasing to the eye, outer expanding panel 14 simultaneously forms folding leg 3 and shelters from in fold condition, is favorable to improving the whole aesthetic property of support.

Claims

1. A convenient folding leg which is characterized in that: including support base (1), pivot seat (2) and folding leg (3), two at least pivot seats can wind vertical pivot (4) pivoted installation that extend along vertical direction on support base, and folding leg can wind horizontal rotating shaft (5) pivoted installation that extend along the horizontal direction on the pivot seat, folding leg and pivot seat one-to-one set up, folding leg upside surface can stop in support base downside surface, still is equipped with on the support base circumference lateral wall and dodges breach (6), and the pivot seat rotates and to make folding leg with dodge the breach just right, folding leg around horizontal rotating shaft rotate can pass through dodge the breach and turn over upward.

2. The easy fold leg of claim 1, wherein: the folding leg is provided with a first buckle device (7), the support base is provided with a second buckle device (8), and the folding leg can be buckled and connected with the first buckle device and the second buckle device when being stopped on the lower side surface of the support base.

3. The easy fold leg of claim 2, wherein: the first buckling device is a slot or a convex column which is positioned on the upper side surface of the folding leg and extends along the longitudinal direction, the second buckling device is a convex column or a slot which is positioned on the lower side surface of the bracket base and extends along the longitudinal direction, and the convex column can be inserted into the slot.

4. The easy fold leg of claim 1, wherein: the folding leg of pivot seat edge rotation direction is equipped with folding spacing buckle (9) on the lateral wall, be equipped with on the folding leg and adjust fastener (10), when the folding leg is in the fold condition that turns over the book upwards, adjust the fastener just with folding spacing buckle lock connection.

5. The easy fold leg of claim 4, wherein: the side wall of the rotating shaft seat along the rotating direction of the folding leg is also provided with an unfolding limit buckle (11), and when the folding leg is in an unfolding supporting state, the adjusting fastener is just connected with the unfolding limit buckle in a buckling manner.

6. The easy fold leg of claim 5, wherein: the folding limiting buckle and the unfolding limiting buckle on the rotating shaft seat are two clamping groove structures which are arranged at intervals along the rotating direction of the folding leg, the adjusting fastener on the folding leg is an elastic pin, and the elastic pin can be inserted into the clamping groove structures.

7. The easy fold leg of claim 6, wherein: the elastic pin can rotate around the horizontal hinged shaft and is arranged on the side wall of the folding leg, a ball head structure is arranged on one side of the circumferential outer side wall of the elastic pin, an elastic part is arranged on the folding leg, and the elastic part provides elastic retaining force for keeping the side wall, where the ball head structure and the rotating shaft seat clamping groove structure are located, of the elastic pin to be tightly attached.

8. The easy fold leg of claim 7, wherein: the opposite side of elastic pin circumference lateral wall forms the tail-stock structure, and the elastic component is torsional spring (12), and on the horizontal articulated shaft of elastic pin was located to the torsional spring cover, torsional spring one end linked firmly with the supporting leg, and the torsional spring other end tightly supported on the tail-stock structure side surface of elastic pin circumference lateral wall opposite side.

9. The easy fold leg of claim 1, wherein: be equipped with axle sleeve structure on the pivot seat, be equipped with the screw hole on the support base downside, still be equipped with the cylinder step screw, in the axle sleeve structure of pivot seat was worn to locate by the cylinder portion of cylinder step screw, the double-screw bolt portion of cylinder step screw and the screw hole spiro union on the direct base.

10. The easy fold leg of claim 1, wherein: the support base forms the I-shaped structure, and the notch is dodged to the interior concave part of I-shaped structure both sides formation, still is equipped with box structure (13) on the support base, and the structural outer panel (14) that expands that is formed with the lateral wall that corresponds with support base size width of box structure, just be located the outer panel back that expands after folding the leg.