WO2023103236A1

WO2023103236A1 - Longitudinal foldable structure of movable supporting leg

Info

Publication number: WO2023103236A1
Application number: PCT/CN2022/085300
Authority: WO
Inventors: 常晓杰
Original assignee: 昆山泓杰电子股份有限公司
Priority date: 2021-12-08
Filing date: 2022-04-06
Publication date: 2023-06-15
Also published as: CN114484226A

Abstract

Provided is a longitudinal foldable structure of a movable supporting leg, comprising a support base (1) and supporting legs (2). One end of each supporting leg (2) can be rotatably mounted on the support base (1) around a rotating shaft (14) perpendicular to an inclined positioning surface, and the other end of the supporting leg (2) is provided with a supporting foot that can be supported on a plane, and is further provided with a stop connecting member that can fixedly connect the supporting leg (2) to the support base (1); the supporting legs (2) can be switched between folding and unfolding supporting by rotating; the unfolding and folding states of the supporting legs (2) can be automatically and stably kept by means of positioning pin slideways (10); the whole structure of the longitudinal foldable structure of the movable supporting leg is simple, the design is ingenious, and convenient and fast in switching, and has few parts and low costs; and inclined positioning surfaces are provided at connecting positions of the supporting legs (2) and the support base (1), thereby reducing the stress of connecting members for connecting the supporting legs (2) and the support base (1), and improving the support stability of the supporting legs (2).

Description

Vertical storage structure for mobile support legs

technical field

The invention relates to a display bracket, in particular to a longitudinal storage structure of movable supporting legs.

Background technique

The floor-standing movable monitor stand has become the preferred display installation method for many conference rooms, shopping malls and families due to its high load-bearing and convenient movement. Large size, inconvenient packaging and transportation, in order to

To solve this problem, a split base structure has appeared at present. A plurality of foldable support legs are arranged on the support base. When packing and storing, the support legs are folded to reduce the occupied space of the entire base. The bracket plays the role of support and positioning, and it bears a large moment. Therefore, the structure of the connection between the support legs of the split base and the base is complicated, and the operation is cumbersome when folding. , It is prone to failure during use, which brings troubles to the storage and support conversion of the floor-standing movable monitor stand.

Contents of the invention

In order to make up for the above shortcomings, the present invention provides a longitudinal storage structure of the movable support legs, which can realize the conversion of unfolding and storage with only one turn, and has a simple structure and convenient operation.

The technical solution adopted by the present invention in order to solve the technical problem is: a longitudinal storage structure for the movable support leg, which includes a support base and a support leg, and one end of the support leg can rotate around a rotating shaft perpendicular to the inclined positioning surface and is installed on the On the support base, the other end of the support leg is provided with a foot capable of supporting on a plane, and a stop connection piece is also provided, and the stop connection piece can fixedly connect the support leg to the support base.

As a further improvement of the present invention, the edge of the base of the bracket is formed with a convex column with a set angle with the horizontal direction, and the end surface of the convex column forms an inclined positioning surface with a set angle with the horizontal plane, and one end of the support leg is installed on the The inclined positioning surface of the boss.

As a further improvement of the present invention, one end of the support leg is formed with an inclined contact surface that is tilted up, and the inclined contact surface is in close contact with the inclined positioning surface of the boss.

As a further improvement of the present invention, the stop connector includes a positioning hole and a positioning pin, the positioning hole is set on the base of the bracket or on one end of the supporting leg, and the positioning pin is installed on one end of the supporting leg so that it can slide along the depth direction of the positioning hole Or on the base of the bracket, the positioning pin can be inserted into the positioning hole or pulled out from the positioning hole.

As a further improvement of the present invention, an elastic piece and a pull ring are also provided. The positioning pin can be slid for a set distance and installed on one end of the support leg or on the base of the bracket. Holding force, the pull ring is installed on the positioning pin, and the pull ring is exposed on the surface of the supporting leg or the base of the bracket.

As a further improvement of the present invention, the base is also provided with an arc-shaped positioning pin slideway, the positioning pin can slide along the extending direction of the positioning pin slideway, and the bottom surface of the positioning pin slideway is such that the height of one end is lower than that of the other end. An arc-shaped inclined surface, and the other end of the bottom surface of the positioning bolt slideway is just aligned with the plane where the positioning hole on the base is located.

As a further improvement of the present invention, an arc-shaped limiting groove concentric with the rotating shaft is also provided on the inclined positioning surface of the support base, and a limiting protrusion is fixed at one end of the supporting leg, and the limiting protrusion can slide Inserted in the arc-shaped limiting groove, the limiting protrusions stop against the side walls at both ends of the arc-shaped limiting groove in the extending direction.

As a further improvement of the present invention, the rotating shaft includes a mounting shaft hole provided on the inclined positioning surface of the bracket base, a rotating shaft fixed at one end of the supporting leg and a connecting bolt, and the rotating shaft is rotatably inserted in the mounting shaft hole, Threaded holes are arranged in the rotating shaft, and the connecting bolts are screwed into the threaded holes of the rotating shaft, and the heads of the connecting bolts are tightly against the surface of the support base facing away from the side of the supporting legs.

As a further improvement of the present invention, a box structure is fixedly installed on the upper side of the bracket base, concave receiving grooves are respectively formed on two opposite side walls of the box structure, and at least one The supporting legs, the supporting legs on two opposite sides of the support base can just be accommodated in the receiving grooves on the side walls of the box structure.

As a further improvement of the present invention, a set of supporting legs are respectively provided on the two opposite side walls of the support base, each set of supporting legs includes two supporting legs with different lengths, and the supporting legs at the other end of the supporting legs are universal wheels for accommodating concave A protruding barrier is provided on the bottom of the groove, two supporting legs are respectively located on both sides of the protruding barrier, and the universal wheels at the other ends of the two supporting legs are longitudinally spaced at the upper end of the protruding barrier accommodating the groove.

The beneficial technical effects of the present invention are: the present invention sets an inclined positioning surface on the edge of the bracket base, so that the supporting legs rotate around the inclined rotating shaft with an included angle with the horizontal direction, thereby realizing the easy operation of horizontal deployment and vertical storage. It can realize the switching between storage and expansion support, and realizes the automatic and stable maintenance of the support leg expansion and storage state through the special positioning pin slideway structure. The overall structure of the present invention is simple, the design is ingenious, the switching is convenient and fast, and the parts are few and the cost is low. The connection between the support leg and the support base is supported by an inclined positioning surface, which greatly reduces the force on the connecting piece connecting the support leg and the support base, and improves the support stability of the support leg.

Description of drawings

Fig. 1 is a perspective view of the unfolded state of the present invention;

Fig. 2 is a sectional view along A-A in Fig. 1 when the positioning latch is locked;

Fig. 3 is a sectional view along A-A in Fig. 1 when the positioning latch is in an open state;

Fig. 4 is an exploded view of the assembly principle of the present invention;

Fig. 5 is an exploded view of the positioning principle of the supporting legs of the present invention;

Fig. 6 is a perspective view of the bracket base of the present invention;

Fig. 7 is a perspective view of the supporting leg of the present invention;

Fig. 8 is an exploded view of the positioning bolt of the present invention;

Fig. 9 is a schematic diagram of the rotation angle limitation of the supporting leg of the present invention;

Fig. 10 is an enlarged view of part B in Fig. 9;

Fig. 11 is a state diagram of the locating pin entering the locating pin slideway;

Figure 12 is an enlarged view of part C in Figure 11;

Fig. 13 is a schematic diagram showing that the positioning slide pin reaches the folded position of the supporting legs;

Fig. 14 is an enlarged view of part D in Fig. 13;

Fig. 15 is a schematic diagram of the first use state of the present invention;

Fig. 16 is a schematic diagram of the second use state of the present invention;

Fig. 17 is a schematic diagram of the third use state of the present invention.

Detailed ways

Embodiment: A longitudinal storage structure for moving support legs, including a support base 1 and a support leg 2, one end of the support leg 2 is mounted on the support base 1 so as to be able to rotate around a rotating shaft perpendicular to the inclined positioning surface, and the support leg 2 The other end is provided with a leg that can be supported on a plane, and is also provided with a stop connector that can fix the support leg 2 to the bracket base 1 .

By rotating the supporting legs around the rotating shaft with an included angle with the horizontal plane, the supporting legs 2 can extend horizontally or vertically, so that the supporting legs 2 can be unfolded, supported and folded. When the supporting legs 2 are in a horizontally unfolded state The support leg 2 and the bracket base 1 can be fixedly connected through the stop connector. When the stop connector is opened when closing, the support leg 2 can be rotated to be folded. The inclined positioning surface is best to have a 45-degree clip with the horizontal plane. Angle, so that the rotating shaft also forms an included angle of 45 degrees with the horizontal plane, and the support leg 2 can just switch between two states parallel to the horizontal plane and perpendicular to the horizontal plane. The structure is simple, and there are few parts. The supporting legs 2 can be quickly unfolded or folded, and are easy to use, easy to operate, and less likely to break down.

The edge of the bracket base 1 is formed with a convex column 4 with a set angle with the horizontal direction, and the end surface of the convex column 4 forms an inclined positioning surface with a set angle with the horizontal plane, and one end of the support leg 2 is installed on the convex column 4 on the inclined positioning surface. This structure improves the strength of the connection position of the support leg 2 on the support base 1, and at the same time avoids interference between the support leg 2 and the support base 1 during rotation.

One end of the support leg 2 forms a slanted and upturned slanted contact surface, and the slanted contact surface is in close contact with the slanted positioning surface of the boss 4 . Through the close contact of the two inclined surfaces, the connection strength, support stability and support firmness of the horizontal support of the support leg 2 are strengthened, and when the support leg 2 is unfolded, the inclined positioning surface of the support base 1 is also lifted from one end of the support leg 2 The function of supporting and supporting reduces the shearing force of the rotating shaft between the supporting leg 2 and the support base 1, preventing the rotating shaft from being broken or deformed by the load pressure on the support base 1 and causing the gap to be too large, so that the support base 1 and the support The connection strength of the legs 2 is weakened, which further improves the support stability of the supporting legs 2. At the same time, the stable storage of the supporting legs 2 in the folded state can also be realized through the friction between the supporting legs 2 and the slope of the bracket base 1. When supporting When the leg 2 and the base are made of metal, it is best to set a plastic gasket between the inclined contact surface of the support leg 2 and the inclined positioning surface of the base to provide rotational friction on the contact surface. Of course, if the support leg 2 and the base The contact surface itself is made of plastic material.

The stop connector includes a positioning hole 6 and a positioning pin 7, the positioning hole 6 is arranged on the support base 1 or one end of the supporting leg 2, and the positioning pin 7 is installed on the supporting leg 2 so as to slide along the depth direction of the positioning hole 6 On one end or the bracket base 1 , the positioning pin 7 can be inserted into the positioning hole 6 or pulled out from the positioning hole 6 . After the support leg 2 rotates to the unfolded support position, the fixed positioning of the support leg 2 and the bracket base 1 is realized by plugging the positioning pin 7 and the positioning hole 6. The positioning holes 6 can be provided with one or more, respectively for the support leg 2 Positioning in the unfolded support state and positioning in the folded and folded state of the support legs 2, the positioning structure of the above support legs 2 is simple and easy to operate. In addition, it can also be positioned by screw connection or buckle fastening, which is very easy for those skilled in the art according to this patent. The easily conceivable equivalent replacement structures belong to the protection scope of this patent.

An elastic piece 8 and a pull ring 9 are also provided. The locating pin 7 can be mounted on one end of the support leg 2 or the bracket base 1 so as to slide for a set distance. Elastic holding force, the pull ring 9 is installed on the positioning pin, and the pull ring 9 is exposed on the surface of the support leg 2 or the support base 1 . Through the elastic member 8, the positioning pin 7 can elastically slide and telescopically move. When it is subjected to an external force, it always maintains a state extending toward the positioning hole 6, and can be automatically inserted into the positioning hole 6 when the supporting leg 2 rotates to a horizontally unfolded state. Connect the support leg 2 to the bracket base 1 for positioning. When folding is required, just pull the pull ring 9 and pull the positioning pin 7 out of the positioning hole 6. The structure is simple, the operation is convenient, and it can be positioned automatically. It is safe to use and Stablize.

The base is also provided with an arc-shaped positioning pin slideway 10, and the positioning pin 7 can slide along the extending direction of the positioning pin slideway 10. surface, and the other end of the bottom surface of the positioning bolt slideway 10 is just aligned with the plane where the positioning hole 6 is located on the base. The positioning pin 7 forms an elastic pin structure under the action of the elastic member 8. After it is lifted out of the positioning hole 6 by an external force, after the support leg 2 is rotated, the positioning pin 7 enters the inner side of the other end of the arc-shaped positioning pin slideway 10. With the support When the leg 2 rotates, the positioning pin 7 slides along the positioning pin slideway 10. When the positioning pin 7 slides, the elastic force of the elastic member 8 is released gradually. When the supporting leg 2 reaches the folded vertical position, the positioning pin 7 just reaches the positioning pin slideway 10, at this time, the sliding pin forms an elastic extension state. To make the supporting leg 2 reversely rotate, the positioning pin 7 needs to slide in the opposite direction. The reverse sliding of the positioning pin 7 needs to overcome the elastic force of the elastic member 8. In the case of the support leg 2, the support leg 2 will maintain a stable folded state. This structural design is ingenious, which not only guides the positioning pin 7 to slide while the support leg 2 rotates, but also realizes the elastic positioning of the support leg 2 after folding. Avoid its free rotation from the folded state, and release the elastic force of the elastic member 8 in the folded state. The elastic member 8 is placed under long-term pressure and fails. After the end, it can enter into the positioning hole 6 for positioning. This structure ensures the stability of the support leg 2 in unfolding and folding, and is simple in structure and easy to operate.

The inclined positioning surface of the support base 1 is also provided with an arc-shaped limiting groove 11 concentric with the rotating shaft, and one end of the supporting leg 2 is fixedly provided with a limiting protrusion 12, and the limiting protrusion 12 can be slidably inserted In the arc-shaped limiting groove 11 , the limiting protrusions 12 stop against the side walls at both ends of the arc-shaped limiting groove 11 in the extending direction. The limit of the rotation angle of the support leg 2 is realized by sliding the limit protrusion 12 in the arc-shaped limit groove 11. When the support leg 2 turns to the horizontally unfolded state, and when it turns to the vertically folded state, the limit protrusion just happens 12 Turn to the two ends of the arc-shaped limiting groove 11. At this time, the supporting leg 2 cannot continue to rotate, just to achieve accurate positioning, to avoid the occurrence that the positioning pin 7 is not inserted into the positioning hole 6 after deployment, resulting in the deployment position not being fixed, or fixed. Failure causes the stent to fall, which improves the safety of the stent.

Described rotating shaft comprises the mounting shaft hole 13 that is located on the inclined positioning surface of support base 1, the rotating shaft 14 that is fixedly arranged at one end of support leg 2 and connecting bolt 15, and described rotating shaft can be inserted in the mounting shaft hole 13 that can rotate, and rotating shaft A threaded hole is provided inside, and the threaded hole of the connecting bolt 15 is screwed into the rotating shaft, and the head of the connecting bolt 15 is tightly against the surface of the support base 1 facing away from the support leg 2. The axial stop positioning of the rotating shaft and the bracket base 1 is achieved by connecting the connecting bolt 15 with the rotating shaft. It is best to have a lock washer 16, which is fixed and positioned with the circumferential direction of the rotating shaft through a missing circle structure to prevent connection. Bolt 15 is loose.

The upper side of the bracket base 1 is also fixedly installed with a box structure 5, the two opposite side walls of the box structure 5 are respectively formed with concave receiving grooves 17, and the two opposite sides of the bracket base 1 are respectively provided with at least one supporting leg 2. The supporting legs 2 on two opposite sides of the support base 1 can just be accommodated in the receiving grooves 17 on the side walls of the box structure 5 . The box structure 5 can be used to accommodate the lifting and lowering drive mechanism of the support column, can also be used as a support column, and can also be used to assist in accommodating display peripheral equipment and the like. In the groove 17, it plays a storage and hiding effect, and keeps the overall appearance of the bracket.

Two opposite side walls of the support base 1 are respectively provided with a set of support legs 2, each set of support legs 2 includes two support legs 2 with different lengths, and the legs at the other end of the support legs 2 are universal wheels 3, and the receiving grooves There is a raised barrier 18 on the bottom surface of 17, and the two supporting legs 2 are respectively located on both sides of the raised barrier 18, and the universal wheels 3 at the other ends of the two supporting legs 2 are accommodated in the protrusions of the accommodating groove 17 at intervals along the longitudinal direction. The upper end of the barrier member 18. The two support legs 2 are separated by the raised barrier 18, and each support leg 2 is accommodated in its own accommodation space, which can prevent the support legs 2 from frictional interference in the accommodation space, and use the universal wheel 3 as a supporting foot , to facilitate the movement of the bracket. By designing the lengths of the two supporting legs 2 to be different, the supporting leg 2 located on the front side of the bracket base 1 is designed to be longer, and the rear side is designed to be shorter, which satisfies stable support and effectively saves The space occupied by the supporting legs 2 when they are deployed, and the universal wheels 3 of the two supporting legs 2 are arranged at intervals up and down in the receiving groove 17, which saves the inner space of the receiving groove 17 and makes the whole support more compact and beautiful.

Claims

A longitudinal storage structure for moving supporting legs, comprising a bracket base (1) and a supporting leg (2), characterized in that: one end of the supporting leg is mounted on the bracket base so as to be able to rotate around a rotating shaft perpendicular to the inclined positioning surface, The other end of the supporting leg is provided with a leg that can be supported on a plane, and is also provided with a stop connecting piece that can fix the supporting leg to the support base.
According to claim 1, the longitudinal storage structure of the mobile support leg is characterized in that: the edge of the support base is formed with a convex column (4) with a predetermined angle with the horizontal direction, and the end surface of the convex column is formed with a predetermined angle with the horizontal plane. An inclined positioning surface with an included angle, one end of the support leg is installed on the inclined positioning surface of the convex post.
According to claim 2, the longitudinal storage structure of the movable support leg is characterized in that: one end of the support leg forms an inclined contact surface inclined upward, and the inclined contact surface is in close contact with the inclined positioning surface of the convex post.
According to claim 1, the longitudinal storage structure of the mobile support leg is characterized in that: the stop connector includes a positioning hole (6) and a positioning pin (7), and the positioning hole is set on the base of the support or at one end of the support leg Above, the positioning pin can slide along the depth direction of the positioning hole and is installed on one end of the supporting leg or the bracket base, and the positioning pin can be inserted into the positioning hole or pulled out from the positioning hole.
According to claim 4, the longitudinal storage structure of the mobile support leg is characterized in that: an elastic member (8) and a pull ring (9) are also provided, and the positioning pin can slide for a set distance and is installed on one end of the support leg or the bracket On the base, the elastic member provides elastic holding force for the positioning pin to be inserted into the positioning hole, and the pull ring is installed on the positioning pin, and the pull ring is exposed on the surface of the supporting leg or the base of the bracket.
According to claim 5, the longitudinal storage structure of the mobile support leg is characterized in that: the base is also provided with an arc-shaped positioning pin slideway (10), the positioning pin can slide along the extending direction of the positioning pin slideway, and the The bottom surface of the positioning pin slideway is an arc-shaped inclined surface whose height at one end is lower than that of the other end, and the other end of the bottom surface of the positioning pin slideway is just aligned with the plane where the positioning hole on the base is located.
According to claim 1 or 4, the longitudinal storage structure of the mobile support leg is characterized in that: the inclined positioning surface of the support base is also provided with an arc-shaped limiting groove (11) concentric with the rotating shaft, and one end of the support leg is fixed A limiting protrusion (12) is provided, and the limiting protrusion is slidably inserted in the arc-shaped limiting groove, and the limiting protrusion stops against the side walls at both ends of the arc-shaped limiting groove in the extending direction.
According to claim 1, the longitudinal storage structure of the mobile supporting leg is characterized in that: the rotating shaft includes an installation shaft hole (13) arranged on the inclined positioning surface of the support base, a rotating shaft (14) fixed at one end of the supporting leg and Connecting bolt (15), the rotating shaft is rotatably inserted in the mounting shaft hole, the rotating shaft is provided with a threaded hole, the connecting bolt is screwed with the threaded hole of the rotating shaft, and the head of the connecting bolt is tightly pressed against the support base against the support leg surface on one side.
According to claim 1, the longitudinal storage structure for the mobile supporting legs is characterized in that: a box structure (5) is fixedly installed on the upper side of the support base, and two opposite side walls of the box structure are respectively formed with concave In the receiving groove (17), at least one support leg is respectively provided on two opposite sides of the support base, and the supporting legs on the two opposite sides of the support base can just be accommodated in the receiving groove on the side wall of the box structure.
The longitudinal storage structure for mobile supporting legs according to claim 9, characterized in that: a set of supporting legs are respectively provided on the two opposite side walls of the support base, each set of supporting legs includes two supporting legs with different lengths, the supporting legs The supporting leg at the other end is a universal wheel (3), and a raised barrier (18) is provided on the bottom surface of the receiving groove. The two supporting legs are respectively located on both sides of the raised barrier, and the universal wheel at the other end of the two supporting legs The upper end of the protruding barrier part is accommodated longitudinally at intervals in the accommodating groove.