CN217302310U

CN217302310U - Foldable support

Info

Publication number: CN217302310U
Application number: CN202220811863.7U
Authority: CN
Inventors: 谭红春
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-08-26
Anticipated expiration: 2032-04-07

Abstract

The utility model discloses a foldable support, it includes: the hinge structure comprises a first hinged sheet and a second hinged sheet which are opposite and approximately parallel, and a hinge structure, wherein the first hinged sheet of the hinge structure is fixed on the other surface of the first plate body, the second hinged sheet of the hinge structure is fixed on one surface of the second plate body, the hinge structure is provided with a first position holding mechanism, the first position holding mechanism comprises a rack and a matching block, the rack is fixedly arranged on the second hinged sheet and surrounds the arc-shaped surface of the arc-shaped groove of the hinged center, the matching block is arranged in a mounting hole in the first hinged sheet, a first position for accommodating one end of the matching block and a second position and a third position for accommodating the other end of the matching block are arranged in the mounting hole, when the other end of the matching block is located at the second position, the matching block and the rack are in an engaged state, and when the other end of the matching block is located at the third position, the matching block and the rack are in a separated state. The bracket has the characteristics of convenient assembly and use.

Description

Foldable support

Technical Field

The utility model relates to a foldable support, especially, the foldable support that is used for supporting cell-phone, panel computer or notebook computer etc..

Background

The foldable support can flexibly adjust the angle of the supported device towards the user, and is popular with users, for example, a mobile phone support disclosed in CN 215072519U. However, the bracket needs to be additionally provided with an expanding rod, the supporting plate is supported by the expanding rod, a friction block needs to be additionally arranged, a sliding groove is formed in the bracket body, and the angle of the expanding rod is kept by the matching of the friction block and the sliding groove and the formation of pretightening force, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a foldable support, this support passes through hinge structure and two plate bodys constitute, need not dispose to strut contained angle between two plate bodys that pole, clutch blocks etc. can conveniently be adjusted to the state after the regulation is kept automatically.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a foldable stand, comprising:

a first plate body having a supporting protrusion on one surface thereof for engaging with a bottom of an object to be supported;

a second plate body which is opposite to and approximately parallel to the first plate body; and

the hinge structure is provided with a first hinge piece and a second hinge piece which are hinged with each other, the first hinge piece is fixed with the other surface of the first plate body, and the second hinge piece is fixed with one surface of the second plate body;

the hinge structure is provided with a first position holding mechanism, the first position holding mechanism comprises a rack and a matching block, a mounting hole is arranged on a first hinged sheet, a first position for accommodating one end of the matching block, a second position and a third position for accommodating the other end of the matching block are arranged in the mounting hole, a separating convex part is arranged between the second position and the third position, an elastic sheet is further arranged in the mounting hole, the free end of the elastic sheet abuts against the surface of the matching block, an arc-shaped groove is arranged on the second hinged sheet around a hinged center, the rack is fixedly arranged on the arc-shaped surface of the arc-shaped groove, transposition blocking parts are respectively arranged in the arc-shaped groove at positions corresponding to two ends of the rack and used for switching the position of the other end of the matching block, and when the other end of the matching block is located at the second position, the matching block and the rack are in an engaged state, and when the other end of the matching block is positioned at the third position, the matching block and the rack are in a separated state.

Preferably, the hinge structure further comprises a second position maintaining mechanism, the second position maintaining mechanism comprises a coil spring, the outer end of the coil spring is fixed with the first hinge plate, the inner end of the coil spring is fixed with the hinge shaft, and the second hinge plate is mounted on the hinge shaft and cannot rotate.

Preferably, the hinge structure further has a second position maintaining mechanism, the second position maintaining mechanism includes a torsion spring, the torsion spring is mounted on the hinge shaft, one arm of the torsion spring abuts against the first hinge piece, and the other arm of the torsion spring abuts against the second hinge piece.

Preferably, the first hinge piece and the second hinge piece respectively comprise a circular main body and a connecting piece tangentially extending from the edge of the circular main body, and the first hinge piece and the second hinge piece are correspondingly fixed on the first plate body and the second plate body through the connecting pieces.

Preferably, the second hinge plate comprises two arc-shaped grooves which are symmetrical relative to the hinge center, correspondingly, the first hinge plate comprises two mounting holes, and the first position maintaining mechanism comprises two racks and a matching block.

Preferably, the hinge structure comprises two second hinge pieces, one edges of the two second hinge pieces are connected into a whole, and the first hinge piece is located between the two second hinge pieces.

Preferably, the support protrusion and the first plate body are made of the same plate body.

Preferably, the support protrusion is away from the hinge center of the hinge structure, and one end of the first board and one end of the second board are used for being matched with a table top.

Preferably, the support protrusion is located near the hinge center of the hinge structure, and the other surface of the second plate is adapted to engage with a table.

Preferably, the hinge structure further comprises end covers, a coil spring is arranged on the outer side of one of the end covers, the coil spring is sleeved on the hinge shaft, a slotted hole is formed in the end portion of the hinge shaft, the inner end of the coil spring is inserted into the slotted hole, a hook is arranged at the outer end of the coil spring, the hook is fixed with the protrusion on the first hinge piece, and a cover is arranged on the outer side of the coil spring.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the support is convenient to assemble, and only two plate bodies are required to be connected with the two hinging pieces of the hinge structure. And convenient to use only needs to rotate two plate bodys of support around hinge structure's hinge center, can adjust the angle of support, and adjusts the back automatic stay at current angle, does not need additionally to fix.

Drawings

FIG. 1 is a perspective view of a first embodiment stand in a folded condition;

FIG. 2 is a view showing an expanded state thereof;

FIG. 3 is a schematic view of a hinge structure thereof;

FIG. 4 is an exploded view of the hinge structure;

FIG. 5 is a schematic view of a second hinge plate;

FIG. 6 is a schematic view of a first hinge plate;

FIG. 7 is a schematic view of the engagement block and the resilient tab with the first hinge plate;

FIG. 8 is a schematic view of the combination of the rack and the second hinge plate, and the mating block and the rack;

FIG. 9 is another state view of the hinge structure;

FIG. 10 is a schematic view of the position of the engagement block within the arcuate slot in the condition of FIG. 9;

FIG. 11 is a further state diagram of the hinge structure;

FIG. 12 is a schematic view of the position of the engagement block within the arcuate slot in the condition of FIG. 11;

FIG. 13 is a schematic view of another embodiment of a second hinge plate;

FIG. 14 is a schematic view of a third embodiment stent;

FIG. 15 is a view showing a state in which the stand of the third embodiment is used;

reference numerals:

10. a first plate body; 11. a support protrusion;

20. a second plate body;

30. a hinge structure;

31. a cover; 32. a coil spring; 321. an inner end; 322. an outer end; 33. a hinge shaft; 331. a slot; 332. a rotation-blocking part; 34. a first end cap; 35. a matching block; 36. an elastic sheet; 37. a first hinge tab; 371. a first connecting piece; 372. a first circular body; 373. mounting holes; 374. a third position; 375. a separation protrusion; 376. a second position; 377. a first position; o, a hinge center; 38. a second hinge tab; 381. a second connecting sheet; 382. a second circular body; 383. a transposition blocking part; 384. a rack; 385. an arc-shaped slot;

39. a second end cap;

40. a table-board.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The first embodiment:

fig. 1 shows the stand in a folded state, fig. 2 shows an unfolded state, and fig. 3 shows a hinge structure.

Referring to fig. 1-3, the foldable stand includes a first plate 10, the first plate 10 is used for being engaged with a supported object, an upper surface of the first plate 10 in fig. 1 is used for being engaged with a back of the supported object, a supporting protrusion 11 is bent upward at a right end of the upper surface of the first plate 10, and the supporting protrusion 11 is used for being engaged with a bottom end of the supported object. In use, the bracket is changed to a deployed state, the first plate 10 is inclined, for example, as shown in fig. 2, a supported body is placed on the first plate 10, and the back and the bottom of the supported body are correspondingly matched with the upper surface of the first plate 10 and the supporting protrusion 11, so as to be supported on the bracket.

The foldable stand further comprises a second panel 20, the second panel 20 being adapted to engage a table top, the second panel 20 being opposite to the first panel 10 and substantially parallel thereto (see fig. 1).

The foldable stand further comprises a hinge structure 30, wherein the hinge structure 30 is used for connecting the first board 10 and the second board 20, and for changing an included angle between the first board 10 and the second board 20, such as changing the state of fig. 1 to the state of fig. 2. It should be noted that fig. 2 is only one unfolded state, and that there may be many states in which the angle between the second panel 20 and the first panel 10 is different.

The hinge structure 30 has two first hinge pieces 37 and two second hinge pieces 38 hinged to each other, one edge of the first hinge piece 37 has a first connecting piece 371 extending tangentially, the first connecting piece 371 is fixed to the lower surface of the first plate 10, one edge of the second hinge piece 38 has a second connecting piece 381 extending tangentially, and the second connecting piece 381 is fixed to the upper surface of the second plate 20. Above-mentioned connection piece has increased the area of contact between articulated piece and the plate body, has formed more firm connection and bearing structure. It should be understood that the connecting piece may not be provided, and the edge of the hinge piece may be directly fixed to the first board body 10 or the second board body 20.

In order to have a plurality of unfolding positions, the support is not hindered in the folding process at the positions. The hinge structure 30 employs a special first position maintaining mechanism. Referring to fig. 4 to 8, the first position maintaining mechanism includes a rack 384 and a mating block 35, a mounting hole 373 is provided on the first hinge plate 37, a first position 377 for receiving one end of the mating block 35 is provided in the mounting hole 373, a second position 376 and a third position 374 for receiving the other end of the mating block 35 are provided in the mounting hole 373, a separating convex portion 375 is provided between the second position 376 and the third position 374, an elastic plate 36 is further installed in the mounting hole 373, a free end of the elastic plate 36 abuts against a surface of the mating block 35, an arc-shaped groove 385 is provided on the second hinge plate 38 around a hinge center O, the rack 384 is fixed to an arc-shaped surface of the arc-shaped groove 385, and shift stops 383 are provided in the arc-shaped groove 385 at positions corresponding to both ends of the rack 384, respectively, for switching the position of the other end of the mating block 35. The rack 384 is fixed to the arc-shaped groove 385 by means of, but not limited to, integral molding, welding, clamping, bonding, screwing, etc., as long as the relative position between the rack 384 and the arc-shaped groove 385 is kept unchanged.

When the other end of the engagement block 35 is in the second position 376 (see fig. 7), the engagement block 35 is in engagement with the gear rack 384 (as shown, for example, in fig. 8). In the hinge structure 30 in this state, due to the meshing engagement of the engagement block 35 and the rack 384, when the engagement block 35 moves to each tooth position of the rack 384, the state of the hinge structure 30 is maintained, so that the bracket can be maintained at a plurality of different unfolding angles.

When the hinge structure 30 is in the state shown in fig. 7 and 8, the stand is folded.

Fig. 9 shows the hinge structure 30 when it is unfolded to the maximum angle. In this state, referring to fig. 10, the engagement block 35 moves to the other end of the rack 384 of the arc-shaped groove 385, and the engagement block 35 remains engaged with the rack 384. In this state, the hinge structure 30 cannot be restored due to the blocking action of the rack gear 384 against the fitting block 35, so that the stand cannot be returned to the folded state.

When the stand is unfolded at any angle and needs to be changed to the maximum unfolding angle in order to fold the stand, the corresponding hinge structure 30 is in a state shown in fig. 9 and 10, and in this state, the hinge structure continues to rotate in the unfolding direction, and at this time, due to the blocking of the fitting block 35 by the shift stopper 383, the other end of the fitting block 35 passes over the partition protrusion 375 and enters the third position 374, and is held at the third position 374 by the partition protrusion 375, as shown in fig. 11. At this time, the engagement block 35 is separated from the rack gear 384 in the arc-shaped groove 385 of the second hinge plate 38, as shown in fig. 12. Since the engagement block 35 is no longer blocked by the rack 384, the hinge structure 30 can be reset back to the state shown in fig. 7 and 8, so that the stand can be returned to the folded state shown in fig. 1.

When returning to the state shown in fig. 7 and 8, the engagement block 35 is blocked by the shift stopper 383 at the other end, and the other end of the engagement block 35 returns to the second position 376 beyond the partitioning convex 375 and is held at the second position 376 by the partitioning convex 375, as shown in the state shown in fig. 7. At this point, the engagement block 35 and the rack 384 are brought into engagement within the arcuate slot 385 of the second hinge plate 38, as shown in fig. 8. At this point, the stent may be deployed again to a different angle.

Referring to fig. 4, a first end cap 34 is further provided at the left end of the hinge structure 30, and a second end cap 39 is provided at the right end for decoration and protection.

Referring to fig. 4, a coil spring 32 is further disposed on the outer side of the first end cap 34, the coil spring 32 is sleeved on the hinge shaft 33, a slot 331 is formed at the end of the hinge shaft 33, an inner end 321 of the coil spring 32 is inserted into the slot 331, an outer end 322 of the coil spring 32 is provided with a hook, the hook is fixed with a protrusion on the first hinge piece 37, and the cover 31 is disposed on the outer side of the coil spring 32. The coil spring 32 applies a twisting force around the hinge shaft 33 to the two hinge pieces of the hinge structure 30, so that the bracket is better kept in a folded state on one hand, and on the other hand, the shaking generated by the fit clearance between the fit block and the rack in the unfolded state of the bracket is overcome, and better use experience can be obtained.

The coil spring 32 described above constitutes the second position maintaining mechanism. In light of this teaching, it will be appreciated by those skilled in the art that coil spring 32 may also be disposed outside of second end cap 39. Further, it is sufficient that the outer end 322 of the coil spring 32 is fixed to the first hinge plate 37, the inner end 321 of the coil spring 32 is fixed to the hinge shaft 33, and the rotation preventing portion 332 of the second hinge plate 38 attached to the hinge shaft 33 is not rotatable.

Further, the above-described second position holding mechanism may also be constructed using a torsion spring. And a torsion spring is arranged on the hinge shaft 33, one arm of the torsion spring is abutted against the first hinged sheet 37, and the other arm of the torsion spring is abutted against the second hinged sheet 38.

Referring to fig. 4, in the present embodiment, the body of the first hinge plate 37 and the body of the second hinge plate 38 are both circular.

Referring to fig. 5, in the present embodiment, the second hinge plate 38 includes two arc-shaped slots 385, and the two arc-shaped slots 385 are symmetrical with respect to the hinge center O. Referring to fig. 6, correspondingly, the first hinge plate 37 includes two mounting holes 373. Referring to fig. 4, correspondingly, the first position maintaining mechanism includes two of the rack 384 and the fitting block 35. Due to the two-group structure, the angle after the unfolding can be more reliably maintained.

Referring to fig. 4, in the present embodiment, the hinge structure 30 includes two second hinge pieces 38, the lower edges of the two second hinge pieces 38 are integrally connected, and the first hinge piece 37 is located between the two second hinge pieces 38. The two second hinge pieces 38 prevent the first hinge piece 37 from shaking sideways, which improves stability.

Referring to fig. 1, in the present embodiment, the supporting protrusion 11 and the first plate 10 are made of the same plate, and can be formed by bending the same metal plate, which has the advantage of convenient manufacturing. The present invention is not limited by this, and the first plate body 10 and the second plate body 20 can also be made of plastic, wood, or other materials.

Referring to fig. 1 and 2, in the present embodiment, the supporting protrusion 11 is near the hinge center of the hinge structure 30, and the lower surface of the second plate 20 is used for matching with a table top.

When the bracket is manufactured, only the first plate body 10 and the second plate body 20 need to be connected with the two hinge pieces of the hinge structure 30, and the bracket is very convenient to assemble. When the angle adjusting bracket is used, the angle of the bracket can be adjusted only by rotating the two plate bodies of the bracket around the hinge center of the hinge structure 30, the adjusted bracket is automatically kept at the current angle, additional fixation is not needed, and the use of the visible bracket is very convenient.

Second embodiment:

the stent of the second embodiment has substantially the same structure as that of the first embodiment. The difference is that in the first embodiment, the number of the engagement blocks 35 and the number of the rack gear 384 of the first position maintaining mechanism are both two, and correspondingly, the number of the mounting holes 373 of the first hinge plate 37 is two, and the number of the arc-shaped grooves 385 of the second hinge plate 38 is two. In the second embodiment, the number of the engagement blocks 35 and the number of the rack gears 384 of the first position maintaining mechanism are one, and correspondingly, the number of the mounting holes 373 of the first hinge plate 37 is one, and the number of the arc-shaped grooves 385 of the second hinge plate 38 is one, as shown in fig. 13. In the second embodiment, the first position holding mechanism is simplified, and cost is saved.

The third embodiment:

as shown in fig. 14, the stand according to the third embodiment also includes a first board 10, a second board 20 and a hinge structure 30, wherein the hinge structure 30 is the same as the hinge structure 30 of the first embodiment.

The third embodiment is different in that the supporting protrusions 11 of the first plate 10 are away from the hinge center of the hinge structure 30. The third embodiment bracket is thus used differently from the first embodiment.

The stand of the third embodiment is engaged with the table top using not the lower surface of the second plate body 20 but one end of the first plate body 10 and one end of the second plate body 20, as shown in fig. 15.

The support of each embodiment can be suitable for various mobile devices, and is particularly suitable for electronic devices such as mobile phones, tablet computers and notebook computers.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for assisting the skilled person in understanding the content of the present invention, and can not be understood as the limitation of the protection scope of the present invention. Various decorations, equivalent transformations and the like performed by the skilled in the art on the above schemes under the conception of the present invention should be included in the protection scope of the present invention.

Claims

1. A foldable stand, comprising:

2. The foldable stand of claim 1, wherein the hinge structure further has a second position maintaining mechanism comprising a coil spring having an outer end fixed to the first hinge plate and an inner end fixed to a hinge shaft to which the second hinge plate is non-rotatably mounted.

3. The foldable stand of claim 1, wherein the hinge structure further comprises a second position maintaining mechanism comprising a torsion spring mounted to a hinge shaft, one arm of the torsion spring abutting against the first hinge plate and the other arm of the torsion spring abutting against the second hinge plate.

4. The foldable stand of claim 1, wherein the first hinge piece and the second hinge piece each comprise a circular body and a connecting piece extending tangentially from an edge of the circular body, and the first hinge piece and the second hinge piece are correspondingly fixed to the first panel and the second panel by the connecting pieces.

5. The foldable stand of claim 1, wherein the second hinge plate includes two of the arcuate slots, the two arcuate slots being symmetrical about a hinge center, correspondingly, the first hinge plate includes two of the mounting holes, and the first position maintaining mechanism includes two of the racks and the mating blocks.

6. The foldable stand of claim 1, wherein the hinge structure comprises two of the second hinge pieces, one edge of the two second hinge pieces being integrally connected, and the first hinge piece being located between the two second hinge pieces.

7. The foldable stand of claim 1, wherein the support ledge and the first panel are made of the same panel.

8. The foldable stand of claim 1, wherein the support ledge is distal from a hinge center of the hinge structure, one end of the first panel and one end of the second panel for engaging a countertop.

9. The foldable stand of claim 1, wherein the support ledge is proximate a hinge center of the hinge structure and the other surface of the second panel is configured to engage a countertop.

10. The foldable support of claim 1, wherein the hinge structure further comprises end caps, one of the end caps is provided with a coil spring at an outer side thereof, the coil spring is sleeved on the hinge shaft, the end of the hinge shaft is provided with a slot, an inner end of the coil spring is inserted into the slot, an outer end of the coil spring is provided with a hook, the hook is fixed with the protrusion on the first hinge plate, and a cover is arranged at an outer side of the coil spring.