CN217540268U - Foldable support - Google Patents

Abstract

The utility model discloses a foldable support, it includes range upon range of setting and vaulting pole and the control assembly between first plate body of edge articulated and second plate body, two plate bodies, control assembly includes: the connecting plate comprises a rail, a first elastic piece, a sliding plate, a swingable connecting plate and a second elastic piece, wherein the rail is provided with a sliding groove and a helical rack, the first elastic piece is in contact fit with two side plates of the rail and used for preventing a pin on the connecting plate from entering a tooth groove of the helical rack, the sliding plate is in sliding fit with the rail, the swingable connecting plate is arranged in a first accommodating cavity on the sliding plate, the second elastic piece is used for providing elasticity for the connecting plate and enabling the pin on the connecting plate to enter the tooth groove of the helical rack, the rail is fixed on a first plate body, one end of a support rod is hinged to a second plate body, and the other end of the support rod is hinged to the sliding plate. The support has the characteristics of good reliability and convenient folding operation and unfolding operation.

Description

Foldable support

Technical Field

The utility model relates to a folding bracket especially relates to two plate body hinged component's folding bracket.

Background

Some existing foldable racks include: a first plate body; the second plate body is stacked with the first plate body, and one edge of the second plate body is hinged with the first plate body, so that the second plate body can rotate to form a certain included angle with the first plate body; one end of the support rod is hinged with the second plate body, and the other end of the support rod is hinged with a sliding block which is arranged on the first plate body in a sliding manner; and the position holding mechanism is arranged at the joint part of the sliding block and the first plate body, so that the changed included angle is automatically kept after the included angle between the second plate body and the first plate body is changed.

When the support is used, the two plate bodies rotate relatively around the hinge parts and are unfolded to form a certain angle, one plate body is supported on the table board, supported equipment, such as a mobile phone, a tablet personal computer, a notebook computer and the like, is placed on the other plate body to form support for the supported equipment, the angle of the supported equipment towards a user can be flexibly adjusted by adjusting the angle between the two plate bodies, and the support is very convenient to use.

However, such stents have the following drawbacks: the position holding mechanism adopts a friction block, and a pretightening friction force is formed between the friction block and a bracket body, such as the bracket disclosed in CN215072519U, so that the reliability of the position holding mechanism is poor, and particularly, the reliability is increasingly poor after the friction block is worn or aged along with the increase of the service time.

SUMMERY OF THE UTILITY MODEL

The object of the utility model is to provide a foldable support to solve the above-mentioned defect that the correlation technique exists at least to a certain extent.

In order to achieve the purpose, the utility model adopts the technical proposal as follows:

a foldable stand, comprising:

a first plate body;

the second plate body is stacked with the first plate body, and one edge of the second plate body is hinged with the first plate body, so that the second plate body can rotate to form a certain included angle with the first plate body; and

the support rod is arranged between the first plate body and the second plate body;

the foldable stand further includes a control assembly, the control assembly including:

the track comprises a back plate, a panel and two side plates, wherein the back plate and the panel are correspondingly provided with sliding chutes, one edges of the sliding chutes are provided with oblique racks, and two ends of the sliding chutes are provided with first extending parts in the same direction as the sliding chutes;

the first elastic piece is in contact fit with the two side plates of the track and can be pushed to move along the track, the first elastic piece is provided with a hollowed-out part for the pin on the connecting plate to penetrate through and move in a translation mode, the hollowed-out part is provided with a narrow groove, and the narrow groove is staggered with the tooth groove of the helical rack so as to prevent the pin from entering the tooth groove of the helical rack;

the sliding plate is in sliding fit with the track and provided with a first accommodating cavity, a first convex part and a second convex part, the first convex part and the second convex part correspondingly face two end parts of the first elastic part, and the first convex part and the second convex part are used for pushing the first elastic part to move along the track; and

the connecting plate is arranged in the first accommodating cavity, provided with a pin, penetrates through the hollow-out part on the first elastic piece to be in sliding fit with the sliding groove, and can swing along the direction of enabling the pin to move in and out of the tooth groove of the helical rack; and

a second elastic member for providing an elastic force to the coupling plate to make the pin enter the tooth groove of the helical rack;

the track is fixed on the first plate body, one end of the support rod is hinged with the second plate body, and the other end of the support rod is hinged with the sliding plate; or the sliding plate is fixed on the first plate body, one end of the support rod is hinged with the second plate body, and the other end of the support rod is hinged with the track.

When the pin is located in the first extending portion of the sliding slot, the pin is located in the narrow slot on the first elastic member or at a position opposite to the mouth of the narrow slot on the first elastic member;

when the bracket is converted from the unfolding state to the folding state, the first convex part of the sliding plate is abutted against the first elastic part, and the second convex part of the sliding plate is separated from the first elastic part by a certain distance, the pin is positioned in the narrow groove on the first elastic piece, is limited by the narrow groove and cannot enter the tooth groove of the helical rack;

when the support is changed from the folding state to the unfolding state, the first convex part of the sliding plate is separated from the first elastic part by a certain distance, the second convex part of the sliding plate is abutted to the first elastic part, and the pin is disengaged from the narrow groove and can enter the tooth groove of the helical rack from the sliding groove.

Preferably, the first elastic member includes:

a substrate section; and

a strip-shaped part formed by extending from one end of the substrate part to the other end;

the strip-shaped part is positioned on one side part of the substrate part and has a gap with the side part of the substrate part;

the hollowed-out part and the narrow groove are arranged on the substrate part.

Preferably, a spring is further arranged between the free end of the strip-shaped part of the first elastic member and the base plate part of the first elastic member.

Preferably, the gusset plate includes the portion of colluding, a side of first holding chamber is equipped with the third convex part, the gusset plate collude the portion of colluding with the third convex part cooperation, with the gusset plate swingably install in first holding chamber, the second elastic component sets up and locates the contralateral of third convex part and locate the gusset plate keep away from the position of colluding the portion.

Preferably, the first plate body or the second plate body is provided with a second accommodating cavity corresponding to the position of the stay bar, and when the support is in a folded state, the stay bar is accommodated in the second accommodating cavity.

Preferably, the two-plate-type solar cell panel comprises two first plate bodies, two second plate bodies and two support rods, wherein the two first plate bodies are movably connected through a crisscross connecting rod mechanism, so that the distance between the two first plate bodies and the distance between the two second plate bodies can be adjusted.

Preferably, the end of the stay bar hinged to the second plate has a second extension that, when the stand is unfolded, is turned to protrude from a lower-middle position of the upper surface of the second plate, so that the second plate constitutes a support portion that engages with the back of the supported apparatus and the second extension constitutes a support portion that engages with the bottom of the supported apparatus.

Preferably, the stay bar is provided with two second extending portions, the two second extending portions are located at the left edge and the right edge of the second plate body, and an accommodating groove is formed in the upper surface of each second extending portion.

Preferably, at least partial area of the surface of the first plate body, which is opposite to the second plate body, is provided with an anti-skid material; or at least partial area of the surface of the second plate body, which is opposite to the first plate body, is provided with anti-skid materials; the anti-slip material is used for increasing the friction force between the support and the back of the supported equipment.

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

and the reliability is good. The support state is kept by matching the pin and the helical rack, and the support state can be reliably kept even if abrasion occurs.

Is convenient to use. The support can be unfolded or folded only by pulling the first plate body and the second plate body around the hinge parts of the first plate body and the second plate body without any other operation, and the support can be kept at the unfolded angle.

Drawings

FIG. 1 is a schematic view of a stent of a first embodiment in a deployed state;

FIG. 2 is a schematic view of the stand of the first embodiment in a folded condition;

FIG. 3 is a perspective view of the control assembly thereof;

FIG. 4 is an exploded view of the control assembly thereof;

FIG. 5 is a schematic view of a first resilient member;

FIG. 6 is a schematic view of a gusset;

FIG. 7 is a schematic view of the combination of the slide plate and the rail, and the connection plate and the slide plate;

FIG. 8 is a schematic view of the combination of the first elastic member and the rail, and the first elastic member and the slide plate;

FIG. 9 is a schematic view of the relative positions of the pin and slot in the first state of the control assembly;

FIG. 10 is a schematic view of the relative positions of the pin and the slot when the control assembly is in the first state;

FIG. 11 is a schematic view of the relative positions of the pin and the slot, and the first resilient member and the second protrusion when the control assembly is in the second state;

FIG. 12 is a schematic view of the relative positions of the pin and the slot when the control assembly is in a second state;

FIG. 13 is a schematic view of the relative positions of the pin and slot in the third state of the control assembly;

FIG. 14 is a schematic view of the relative positions of the pin and the slot when the control assembly is in the third state;

FIG. 15 is a schematic view of the relative positions of the pin and slot in a fourth state of the control assembly;

FIG. 16 is a schematic view of the relative positions of the pin and the slot when the control assembly is in a fourth state;

FIG. 17 is a schematic view of a stent of the second embodiment in a deployed state;

FIG. 18 is a schematic view of the stand of the second embodiment in a folded condition;

FIG. 19 is a schematic view of a stent of the third embodiment in a deployed state;

FIG. 20 is a schematic view of the third embodiment stand in a folded condition;

FIG. 21 is a schematic view of a stent of the fourth embodiment in a deployed state;

FIG. 22 is a schematic view of the fourth embodiment stand in a folded condition;

reference numerals:

10. a second plate body;

11. an anti-slip material; 12. a second accommodating cavity;

20. a stay bar;

21. a containing groove; 22. a second extension;

30. a first plate body;

40. a control component;

41. a slide plate; 411. a first convex portion; 412. a third convex portion; 413. a first accommodating cavity; 414. a second convex portion; 42. a track; 421. a panel; 422. a first extension portion; 423. a chute; 424. a helical rack; 4241. a tooth socket; 425. a side plate; 426. a back plate; 43. a first elastic member; 431. a substrate section; 432. a hollow-out section; 433. a narrow groove; 434. a bar-shaped portion; 435. a spring; 44. a second elastic member; 45. a coupling plate; 451. a hook part; 452. a plate body; 453. a pin;

50. a linkage mechanism.

Detailed Description

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

The first embodiment:

fig. 1 to 16 show a first embodiment of the stand, wherein fig. 1 shows a use state, or an expanded state, fig. 2 shows a retracted state, or a folded state, fig. 3 to 8 show the configuration of the control assembly 40, and fig. 9 to 16 show several changes of the control assembly 40 from the expanded state to the folded state and from the folded state to the expanded state of the stand.

Referring to fig. 1, the present foldable stand comprises: the first plate 30, the second plate 10, the stay bar 20 and the control assembly 40.

The first board 30 of the present embodiment is adapted to cooperate with a table top, and the second board 10 is adapted to cooperate with a supported device, which may be a tablet computer, a laptop computer or the like. The first plate 30 and the second plate 10 are provided with hollow structures, and the hollow structures reduce the overall weight of the bracket.

The second plate 10 is stacked on the first plate 30, the right edge of the second plate 10 is hinged to the first plate 30, and the angle between the second plate 10 and the first plate 30 can be changed by rotating the second plate 10 around the hinged portion.

Two upward protrusions are fixed to the right end of the first board 30, and when the supported device is placed on the second board 10, the protrusions are engaged with the bottom of the supported device, so that the supported device in an inclined state can be prevented from sliding rightward.

The brace 20 is of an upper frame structure, and two upper ends thereof are hinged with two side edges of the second plate body 10, and the center of the lower end thereof is hinged with the sliding plate of the control assembly 40 on the first plate body 30.

The rails of the control assembly 40 are fixed to the first plate 30.

Referring to fig. 2, a second accommodating cavity 12 is disposed at a position of the second plate 10 corresponding to the supporting rod 20, and when the support is folded, the supporting rod 20 is accommodated in the second accommodating cavity 12, so that the support can be thinner in a folded state, and is convenient to carry and store. The surface of the second plate body 10 opposite to the first plate body is provided with the anti-slip material 11 in the areas of the four corners, when the supported device is placed on the second plate body 10, the anti-slip material 11 on the second plate body 10 is attached to the back of the supported device, so that a large friction force is formed, and the supported device can be better prevented from being deviated on the second plate body 10. The non-slip material 11 is preferably, but not limited to, a silicone sheet, a soft rubber sheet, or the like.

Referring to fig. 3, the control assembly 40 includes a rail 42 and a slider 41, the slider 41 being inserted in the rail 42 to be slidably engaged with the rail 42.

Referring to fig. 4, the rail 42 includes a back plate 426, a front plate 421 and two side plates 425, the back plate 426 and the front plate 421 are respectively provided with a sliding groove 423, one edge of the sliding groove 423 is provided with a helical rack 424, and two ends of the sliding groove 423 are provided with first extending parts 422 in the same direction as the sliding groove 423.

Referring to fig. 4 and 8, the control assembly 40 further includes a first elastic member 43. As shown in fig. 5, the first elastic member 43 specifically includes: the display panel comprises a substrate portion 431 and a strip portion 434 formed by extending from the lower end to the upper end of the substrate portion 431, wherein the strip portion 434 is located on the left side of the substrate portion 431 and has a gap with the left side of the substrate portion 431, the substrate portion 431 is provided with a hollow portion 432, and the bottom of the hollow portion 432 is provided with a narrow groove 433.

Referring to fig. 4, 5 and 8, the first elastic member 43 is in contact engagement with the left and right side plates 425 of the rail 42, and due to the elastic force of the strip portion 434 on the side plates 425 of the rail 42, the first elastic member 43 can be kept stationary on the rail 42 when no external force is applied, and the first elastic member 43 can move downward or upward along the rail 42 when a downward or upward external force is applied. The hollow part 432 is provided for the pin 453 of the connecting plate 45 to pass through and to be able to move in translation, and the narrow groove 433 is offset from the tooth groove 4241 of the helical rack 424, so that when the pin 453 of the connecting plate 45 is located in the narrow groove 433, the pin 453 cannot enter the tooth groove 4241 of the helical rack 424, i.e. the narrow groove 433 is provided to prevent the pin 453 from entering the tooth groove 4241 of the helical rack 424. It should be noted that the shape of the first elastic member 43 is not limited by the structure of fig. 5.

Referring to fig. 5 and 8, a spring 435 is further provided between the free end of the bar portion 434 of the first elastic member 43 and the base plate portion 431 of the first elastic member 43. The spring 435 may enhance the elastic force of the first elastic member 43, and in some cases, for example, when the first elastic member 43 is made of a plastic material, when the plastic material is aged and the elastic force is insufficient, the spring 435 may effectively compensate for the attenuation of the elastic force, thereby ensuring the reliability of the product.

Referring to fig. 4 and 7, the sliding plate 41 is slidably engaged with the rail 42, and the sliding plate 41 is provided with a first receiving chamber 413. The control assembly 40 further includes a coupling plate 45, the coupling plate 45 is disposed in the first accommodating cavity 413, a pin 453 (see fig. 6) is fixed to the coupling plate 45, the pin 453 passes through the hollow portion 432 of the first elastic member 43 to be slidably engaged with the sliding groove 423, and the coupling plate 45 can swing in a direction that the pin 453 moves in and out of the tooth groove 4241 of the helical rack 424. The control assembly 40 further includes a second elastic member 44, and the second elastic member 44 is used to provide an elastic force to the coupling plate 45 to make the pin 453 enter the spline 4241 of the rack gear 424.

With further reference to fig. 4, 6 and 7, the upper end of the plate body 452 of the coupling plate 45 has a hook portion 451, a side portion of the first accommodating cavity 413 is provided with a third protrusion 412, the hook portion 451 of the coupling plate 45 is matched with the third protrusion 412 to mount the coupling plate 45 to the first accommodating cavity 413 in a swingable manner, and the second elastic member 44 is disposed at an opposite side of the third protrusion 412 and at a position of the coupling plate 45 away from the hook portion 451.

With reference to fig. 4 and 8, the sliding plate 41 is further provided with a first convex portion 411 and a second convex portion 414, the first convex portion 411 facing the upper end of the first elastic member 43, and the second convex portion 414 facing the lower end of the first elastic member 43. When the sliding plate 41 moves relative to the rail 42, the first elastic member 43 is pushed to move along the rail 42 by the first protrusion 411 and the second protrusion 414.

Referring to fig. 1 and 4, the tooth tip of the helical rack 424 faces the edge of the first plate 30 hinged to the second plate 10.

The operation of the control assembly 40 when the stand is converted between the collapsed and expanded states is described below in connection with fig. 9-16.

When the stand is in the folded state, the control assembly 40 is in the state shown in fig. 9 and 10, and at this time, the pin 453 is in the first extension 422 of the lower end of the slide groove 423, and the pin 453 is in the narrow groove 433 of the first elastic member 43.

During the transition of the stand from the folded state to the unfolded state, the sliding plate 41 is gradually pulled out from the rail 42. As shown in fig. 11 and 12, when the slide plate 41 moves upward for a certain distance, the second protrusion 414 of the slide plate 41 contacts the bottom of the first elastic member 43, and the first protrusion 411 is spaced from the first elastic member 43, and at this time, the pin 453 is disengaged from the narrow groove 433 of the first elastic member 43, and the movement restriction of the pin 453 is released. As shown in fig. 13 and 14, the slide plate 41 continues to move upward, and when the pin 453 enters the position of the slide groove 423 corresponding to the rack gear 424, the pin 453 moves to the tooth groove 4241 of the rack gear 424 due to the second elastic member 44, so that the slide plate 41 cannot move downward, and the stay 20 is maintained at the current position, and thus the stand is maintained at the current deployment angle. When the pins 453 are seated in the different toothed grooves 4241 of the rack gear 424, the stand is maintained at different unfolded angles, whereby the stand can be conveniently maintained at the unfolded angle desired by the user.

When it is necessary to convert the stent from the unfolded state to the folded state, the stent is unfolded to the maximum unfolded angle, and at this time, as shown in fig. 15 and 16, the pin 453 moves to the first extension 422 of the upper end of the slide groove 423, and at this time, the pin 453 is located at a position opposite to the mouth of the narrow groove 433 of the first elastic member 43.

Next, the folding of the rack is started, in the folding process, first, the downward movement of the slide plate 41 drives the pin 453 to enter the narrow groove 433 of the first elastic member 43, the first convex portion 411 of the slide plate 41 abuts against the first elastic member 43 and the second convex portion 414 of the slide plate 41 is spaced from the first elastic member 43, then, as the slide plate 41 further moves downward, the first elastic member 43 is pushed to move downward together, and due to the movement limitation of the pin 453 from the narrow groove 433, when the pin 453 passes through the slide groove 423, the pin 453 does not enter the tooth groove 4241 of the helical rack 424, and therefore, the pin can move to the lowest end (as shown in fig. 9 and 10) along the slide groove 423, so that the rack can be folded.

It can be seen that, with the above control assembly 40, in the folding and unfolding processes of the bracket, only two hands are needed to respectively hold the first plate body 30 and the second plate body 10, and the control assembly rotates around the hinge portion of the first plate body 30 and the second plate body 10, and after the unfolding angle desired by the user is reached, the control assembly is loosened, so that the bracket can be maintained at the angle, and the operation of the stay bar 20 is not needed, and other additional operations are not needed, so that the use is very simple and convenient.

Compared with the prior art that the state of the bracket is maintained by adopting the friction blocks, the state of the bracket is not reliably maintained after the friction blocks are worn. The embodiment adopts the cooperation of the pin 453 and the helical rack 424 to realize the support state maintenance, and effectively overcomes the defects.

Second embodiment:

fig. 17 to 18 show a stent of a second embodiment, wherein fig. 17 shows an expanded state and fig. 18 shows a collapsed state.

Referring to fig. 17, the present foldable stand comprises: the first plate body 30, the second plate body 10, the stay bar 20 and the control assembly 40.

The structure of the first plate 30, the structure of the second plate 10, and the structure of the control assembly 40 are the same as those of the first embodiment.

The main differences from the first embodiment are: the number of struts 20 and the number of control assemblies 40 are different. In the first embodiment, one stay 20 and one control assembly 40 are employed. In the second embodiment, two support rods 20 and two control assemblies 40 are used, and the two control assemblies 40 are arranged on the first plate 30 in parallel and are hinged with the two support rods 20 correspondingly.

Since the second embodiment of the stand is provided with two support rods 20 respectively connected with the first plate 30 through the control assembly 40, the stand is more stable after being unfolded, and is particularly suitable for supporting heavier equipment such as a notebook computer, a tablet computer and the like.

Referring to fig. 18, the second receiving cavities 12 are respectively disposed at positions of the second plate body 10 corresponding to the two support rods 20, and in the folded state of the bracket, the two support rods 20 are correspondingly embedded in the two second receiving cavities 12, so that the overall thickness of the bracket is reduced.

The third embodiment:

fig. 19 to 20 show a stent of a third embodiment, wherein fig. 19 shows an expanded state and fig. 20 shows a collapsed state.

Referring to fig. 19, the present foldable stand comprises: two first plate bodies 30, two second plate bodies 10, two support rods 20 and two control assemblies 40.

The first plate 30 and the second plate 10 are strip-shaped.

Two first plate bodies 30 set up side by side, two second plate bodies 10 and two first plate bodies 30 range upon range of setting up one-to-one, a short border of second plate body 10 is articulated with the first plate body 30 at place, rotate second plate body 10 around this articulated portion, can alternate the contained angle between second plate body 10 and the first plate body 30, two second plate bodies 10 articulate a vaulting pole 20 separately, the other end of two vaulting poles 20 articulates with a control assembly 40's slide separately, two control assembly 40's track correspondence is fixed on two first plate bodies 30.

A second accommodating cavity 12 is provided at a position of the second plate 10 corresponding to the stay bar 20, and in the folded state of the bracket, the stay bar 20 is accommodated in the second accommodating cavity 12.

The stand also includes a criss-cross linkage 50. One end of each of the two connecting rods of the connecting rod mechanism 50 is hinged to one of the two first plate bodies 30, the other end of each of the two connecting rods is in sliding fit with the guide groove in the other one of the two first plate bodies 30, and the distance between the two first plate bodies 30 and the distance between the two second plate bodies 10 can be adjusted by deforming the connecting rod mechanism 50, so that the effect of adjusting the width of the support is achieved. It can be seen that this support can be applicable to the equipment of multiple equidimension.

The structure of the control unit 40 is the same as that of the first embodiment, and is not described herein again.

Fig. 20 shows the stand in a folded state. Compared with the unfolding state in fig. 19, in the folding state, the size of the bracket in the height direction is greatly reduced, and the size of the bracket in the width direction is also greatly reduced, so that the bracket is more convenient to carry and store.

The fourth embodiment:

fig. 21 to 22 show a stent of a fourth embodiment, wherein fig. 21 shows an expanded state and fig. 22 shows a collapsed state.

Referring to fig. 21, the present foldable stand comprises: the first plate body 30, the second plate body 10, the stay bar 20 and the control assembly 40.

The first board 30 of the present embodiment is used for matching with a table top, and the second board 10 is used for matching with a supported device, which may be a tablet computer, a portable computer or the like.

The second plate 10 is stacked on the first plate 30, the left edge of the second plate 10 is hinged to the first plate 30, and the angle between the second plate 10 and the first plate 30 can be changed by rotating the second plate 10 around the hinged portion.

The brace 20 is of an upper frame structure, and two upper ends of the brace are hinged to two side edges of the second plate 10, and the center of the lower end is hinged to the sliding plate of the control assembly 40 on the first plate 30.

The end of the stay bar 20 hinged to the second plate 10 has a second extension 22, and after the support is unfolded (as shown in fig. 21), the second extension 22 is turned to protrude from the middle-lower position of the upper surface of the second plate 10, so that the second plate 10 forms a support part matched with the back of the supported equipment, the second extension 22 forms a support part matched with the bottom of the supported equipment, and the supported equipment is supported from the bottom and the back of the supported equipment.

The stay bar 20 of the present embodiment has two second extending portions 22, the two second extending portions 22 are located at the left and right edges (the front and rear edges in fig. 21) of the second plate 10, and the receiving groove 21 is disposed on the upper surface of the second extending portion 22. When the support device is used, the bottom of the supported device is embedded in the accommodating groove 21, so that the supported device can be prevented from moving, and more stable support can be formed.

The track of the control assembly 40 is fixed to the first plate 30, and the structure of the control assembly 40 is the same as that of the first embodiment, which is not described herein again.

The second plate 10 is provided with a second accommodating cavity 12 corresponding to the stay bar 20, and when the stand is folded, as shown in fig. 22, the stay bar 20 and the second extending portion 22 are accommodated in the second accommodating cavity 12, so that the stand can be thinner in the folded state, and is convenient to carry and store.

The surface of the second board body 10 opposite to the first board body 30 is provided with the anti-slip material 11, and the anti-slip material 11 may form a larger friction force to the back of the supported device placed on the second board body 10, so as to better prevent the supported device from shifting on the second board body 10.

The support is suitable for various mobile devices, and is particularly suitable for electronic devices such as mobile phones, tablet computers and notebook computers.

In the above embodiments, the rail 42 of the control module 40 is fixed to the first plate 30, and the stay bar 20 is hinged to the sliding plate 41 of the control module 40. The utility model discloses can also be opposite, promptly: the sliding plate 41 of the control assembly 40 is fixed to the first plate 30 such that the rail 42 is movable relative to the sliding plate 41, and the stay bar 20 is hinged to the rail 42.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for assisting the person skilled in the art to understand the content of the present invention, and should not be construed as limiting the scope of the present invention. Various decorations, equivalent changes and the like which are performed on the scheme by the technical personnel in the field under the conception of the invention are all included in the protection scope of the invention.

Claims (10)

1. A foldable stand, comprising:

a first plate body (30);

the second plate body (10) is stacked with the first plate body (30), and one edge of the second plate body (10) is hinged with the first plate body (30) so that the second plate body (10) can rotate to form a certain included angle with the first plate body (30); and

the support rod (20) is arranged between the first plate body (30) and the second plate body (10);

characterized in that said foldable support further comprises a control assembly (40), said control assembly (40) comprising:

the track (42) comprises a back plate (426), a panel (421) and two side plates (425), the back plate (426) and the panel (421) are correspondingly provided with sliding grooves (423), one edge of each sliding groove (423) is provided with a helical rack (424), and two ends of each sliding groove (423) are provided with first extending parts (422) in the same direction as the sliding grooves (423);

a first elastic member (43) which is in contact fit with the two side plates (425) of the track (42) and can be pushed to move along the track (42), wherein the first elastic member (43) is provided with a hollow part (432) for the pin (453) on the connecting plate (45) to penetrate and move in a translation manner, the hollow part (432) is provided with a narrow groove (433), and the narrow groove (433) is staggered with a toothed groove (4241) of the helical rack (424) so as to prevent the pin (453) from entering the toothed groove (4241) of the helical rack (424);

the sliding plate (41) is in sliding fit with the rail (42), the sliding plate (41) is provided with a first accommodating cavity (413), a first convex part (411) and a second convex part (414) which face to two ends of the first elastic part (43) correspondingly, and the first convex part (411) and the second convex part (414) are used for pushing the first elastic part (43) to move along the rail (42); and

the connecting plate (45) is arranged in the first accommodating cavity (413), the connecting plate (45) is provided with a pin (453), the pin (453) penetrates through the hollow-out part (432) on the first elastic piece (43) to be in sliding fit with the sliding groove (423), and the connecting plate (45) can swing along the direction that the pin (453) goes in and out of the tooth groove (4241) of the helical rack (424); and

a second elastic member (44) providing an elastic force to the coupling plate (45) to make the pin (453) enter a tooth groove (4241) of the helical rack (424);

the rail (42) is fixed on the first plate body (30), one end of the support rod (20) is hinged with the second plate body (10), and the other end of the support rod is hinged with the sliding plate (41); or the sliding plate (41) is fixed on the first plate body (30), one end of the support rod (20) is hinged with the second plate body (10), and the other end of the support rod is hinged with the track (42).

2. The foldable stand of claim 1,

when the pin (453) is in the first extension (422) of the runner (423), the pin (453) is in the narrow groove (433) on the first elastic member (43) or in a position opposite to the mouth of the narrow groove (433) on the first elastic member (43);

when the bracket is converted from the unfolding state to the folding state, the first convex part (411) of the sliding plate (41) is abutted against the first elastic part (43), the second convex part (414) of the sliding plate (41) is separated from the first elastic part (43) by a certain distance, and the pin (453) is positioned in the narrow groove (433) on the first elastic part (43), is limited by the narrow groove (433) and cannot enter the tooth groove (4241) of the helical rack (424);

when the support is converted from the folding state to the unfolding state, the first convex part (411) of the sliding plate (41) is spaced from the first elastic part (43) at a certain distance, the second convex part (414) of the sliding plate (41) is abutted against the first elastic part (43), and the pin (453) is disengaged from the narrow groove (433) and can enter the tooth groove (4241) of the helical rack (424) from the sliding groove (423).

3. The foldable stand according to claim 1, characterized in that the first elastic member (43) comprises:

a substrate section (431); and

a strip portion (434) extending from one end of the substrate portion (431) to the other end;

the strip-shaped part (434) is positioned at one side part of the substrate part (431) and has a gap with the side part of the substrate part (431);

the hollowed-out portion (432) and the narrow groove (433) are provided in the base plate portion (431).

4. Foldable support according to claim 3, characterized in that a spring (435) is further provided between the free end of said strip-shaped portion (434) of the first elastic member (43) and the base plate portion (431) of the first elastic member (43).

5. The foldable support according to claim 1, characterized in that the coupling plate (45) comprises a hook portion (451), a third protrusion (412) is disposed on one side of the first accommodating cavity (413), the hook portion (451) of the coupling plate (45) is engaged with the third protrusion (412) to mount the coupling plate (45) to the first accommodating cavity (413) in a swingable manner, and the second elastic member (44) is disposed on the opposite side of the third protrusion (412) and at a position of the coupling plate (45) far away from the hook portion (451).

6. Foldable support according to claim 1, characterized in that the first plate (30) or the second plate (10) is provided with a second housing cavity (12) in a position corresponding to said stay (20), and in the folded state of the support, said stay (20) is housed in said second housing cavity (12).

7. The foldable support according to claim 1, characterized in that it comprises two first panels (30), two second panels (10) and two struts (20), the two first panels (30) being movably connected by a criss-cross linkage (50) so that the distance between the two first panels (30) and the distance between the two second panels (10) are adjustable.

8. Foldable support according to claim 1, characterized in that the ends of the stay (20) hinged to the second panel (10) have second extensions (22), said second extensions (22) being turned to project from a lower-middle position of the upper surface of the second panel (10) when the support is unfolded, so that the second panel (10) constitutes a support for the back of the supported equipment and said second extensions (22) constitutes a support for the bottom of the supported equipment.

9. The foldable support according to claim 8, characterized in that the stay (20) has two second extensions (22), the two second extensions (22) being located at the left and right edges of the second plate (10), and the upper surface of the second extensions (22) being provided with a receiving groove (21).

10. The foldable stand of claim 1,

at least partial region of the surface of the first plate body (30) opposite to the second plate body (10) is provided with an anti-skid material (11); or

At least partial area of the surface of the second plate body (10) opposite to the first plate body (30) is provided with an anti-skid material (11);

the anti-skid material (11) is used for increasing the friction force between the bracket and the back of the supported equipment.

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