CN219432982U - Foldable bracket - Google Patents

Abstract

The utility model relates to the field of support frames, in particular to a foldable support. The device comprises a bottom plate mechanism, a top plate mechanism and a supporting mechanism for supporting the bottom plate mechanism and the top plate mechanism; the bottom plate mechanism comprises two groups of bottom plate components, and each group of bottom plate components comprises two supporting plates a which can be synchronously unfolded and folded in a V shape; the top plate mechanism comprises two groups of top plate assemblies, and each group of top plate assemblies comprises two supporting plates b which can be unfolded and folded synchronously in a V shape. The folding type folding bicycle has the advantages of stronger folding property, smaller occupied space after folding, lighter weight and portability.

Description

Foldable bracket

Technical Field

The utility model relates to the field of support frames, in particular to a foldable support.

Background

When people learn or work in various places, handheld devices, such as handheld books, computers, etc., are mostly needed. However, this results in poor office and learning experience. Therefore, products such as computer brackets or reading frames exist at present so as to be convenient to use in places such as beds, sofas and grounds, and used for supporting books or computers so as to facilitate the office and study of people.

Chinese patent publication No. CN217937503U discloses a support with locking function, including bottom plate, roof and be used for with the bracing piece of bottom plate, roof mutual support, the bracing piece is including two each other side by side, and two the upper and lower tip of bracing piece respectively with roof, bottom plate rotate to be connected, two bracing piece mutually rotate first pole and the second pole of connection, and be provided with the pivot subassembly in its two pivoted joints department, can make two members mutually interlocked end, guarantee its supporting stability, have certain security performance simultaneously.

However, the above-mentioned patent has the following disadvantages:

the roof and the bottom plate are all a whole flat plate, and when the bracket is not used, the whole bracket can be folded, but the occupied space is still larger, and the whole bracket is heavier and inconvenient to carry.

Disclosure of Invention

The utility model aims to solve the problems in the background technology and provides a foldable support which is stronger in folding property, smaller in occupied space after folding, lighter in weight and convenient to carry.

The technical scheme of the utility model is that the foldable bracket comprises a bottom plate mechanism, a top plate mechanism and a supporting mechanism for supporting the bottom plate mechanism and the top plate mechanism;

the bottom plate mechanism comprises two groups of bottom plate components, and each group of bottom plate components comprises two supporting plates a which can be synchronously unfolded and folded in a V shape;

the top plate mechanism comprises two groups of top plate assemblies, and each group of top plate assemblies comprises two supporting plates b which can be unfolded and folded synchronously in a V shape.

Preferably, the end part of the supporting plate a is provided with an engagement tooth part a, and two supporting plates a in the same group of bottom plate assemblies are in engagement connection through the engagement tooth part a; the end part of the supporting plate b is provided with a meshing tooth part b, and two supporting plates b in the same group of top plate assemblies are in meshing connection through the meshing tooth part b; the supporting plate a and the supporting plate b are respectively connected with the supporting mechanism in a damping rotation way.

Preferably, two support plates a in one group of bottom plate assemblies are respectively in meshed connection with two support plates a in the other group of bottom plate assemblies through the meshing teeth a.

Preferably, two supporting plates b in one group of top plate assemblies are respectively in meshed connection with two supporting plates b in the other group of top plate assemblies through the meshing teeth b.

Preferably, the bottom of the supporting plate a is provided with a supporting pad a; the top of the supporting plate b is provided with a supporting pad b, and the tops of the bottom ends of the supporting pads b on two supporting plates b in a group of top plate assemblies which are distributed downwards are respectively provided with a baffle.

Preferably, the supporting mechanism comprises a mounting plate a, a mounting plate b, a mounting plate c, a mounting plate d and a supporting rod, wherein the mounting plate a is connected with the mounting plate b, the mounting plate a is positioned below the mounting plate b, the mounting plate c is connected with the mounting plate d, and the mounting plate c is positioned below the mounting plate d; two ends of the supporting rod are respectively connected with the mounting plate b and the mounting plate c in a damping rotation way.

Preferably, the support rod comprises a support rod a and a support rod b, the support rod a and the support rod b are rotationally connected and can be maintained in the adjusted position, the mounting plate b is rotationally connected with the support rod a in a damping manner, and the support rod b is rotationally connected with the mounting plate c in a damping manner.

Preferably, the damping rotation of the bottom of the supporting rod a is connected with a rotating plate, the rotating plate is in damping rotation connection with a mounting plate b, a fixed cylinder is arranged on the rotating plate in a penetrating mode, a bolt is connected with the fixed cylinder in a threaded mode, an elastic piece a and a rigid ball are sequentially connected between the bolt and the mounting plate b, and a groove for the rigid ball to be clamped in is formed in the mounting plate b in a circular mode.

Preferably, the strut a is connected to the strut b in a damped rotational manner.

Preferably, the support rod a is provided with a sliding frame in a sliding way, the sliding frame is provided with a clamping column, and an elastic piece b is connected between the sliding frame and the support rod a; the support rod b is provided with a plurality of clamping grooves for clamping the clamping columns, and the clamping grooves are fan-shaped or circular.

Preferably, a limit post b and a guide post are coaxially arranged on the support rod a, a plurality of tooth grooves b are uniformly formed in one axial end of the limit post b in a circular shape, a sliding rod is rotatably arranged on the limit post b and the guide post, the sliding rod is connected with a knob, the sliding rod is provided with a cylindrical cam part a, and the guide post is provided with a cylindrical cam part b which is abutted to the cylindrical cam part a; the support rod b is provided with a mounting column, the support rod b is provided with a limiting column a in a sliding manner, an elastic piece c is connected between the mounting column and the limiting column a, the limiting column a is abutted to the end part of the sliding rod, and a plurality of tooth grooves a corresponding to the tooth grooves b are uniformly formed in the circular shape at one end of the limiting column a, facing the limiting column b.

Preferably, in four support plates a in two groups of bottom plate assemblies, two support plates a distributed in a staggered way are integrally connected, and after the support plates a are connected in pairs, a support plate c and a support plate d are respectively formed, and the support plate c and the support plate d are in X-shaped rotation connection.

Compared with the prior art, the utility model has the following beneficial technical effects:

the folding type folding bicycle has the advantages of stronger folding property, smaller occupied space after folding, lighter weight and portability. The four supporting plates a and the four supporting plates b are distributed in a dispersed manner and can be connected in various connection modes, folding adjustment in various modes can be carried out, the adjustment process is flexible and convenient, and after the support is completely folded, the size of the whole support is smaller, the weight is smaller, and the support is more convenient to carry.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a folded structure according to an embodiment of the present utility model;

FIG. 3 is a partial cross-sectional view of a first embodiment of the present utility model;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5, 6, 7 and 8 are schematic views showing four connection forms of the pallet a and the pallet b according to the first embodiment of the present utility model;

FIG. 9 is a schematic diagram of a second embodiment of the present utility model;

FIG. 10 is a partial cross-sectional view of a second embodiment of the present utility model;

fig. 11 is an enlarged view of the structure at B in fig. 10;

fig. 12 is a partial sectional view of the second embodiment of the present utility model when the limiting post a and the limiting post b are engaged.

Reference numerals: 1. a supporting plate a; 2. a mounting plate a; 3. a mounting plate b; 301. a groove; 4. a supporting rod a; 41. a rotating plate; 42. a fixed cylinder; 43. a bolt; 44. an elastic member a; 45. a rigid ball; 5. a carriage; 51. a clamping column; 52. an elastic member b; 6. a support rod b; 601. a clamping groove; 7. a mounting plate c; 8. a mounting plate d; 9. a supporting plate b; 10. a support pad a; 11. a support pad b; 111. a baffle; 121. a pallet c; 122. a supporting plate d; 13. a mounting column; 14. an elastic member c; 15. a limit column a; 16. a slide bar; 17. a knob; 18. a limit column b; 19. and a guide post.

Detailed Description

Example 1

As shown in fig. 1 to 8, a foldable stand according to the present embodiment includes a base plate mechanism, a top plate mechanism, and a supporting mechanism for supporting the base plate mechanism and the top plate mechanism. The bottom plate mechanism comprises two groups of bottom plate components, and each group of bottom plate components comprises two supporting plates a1 which can be unfolded and folded synchronously in a V shape. The roof mechanism comprises two groups of roof assemblies, and each group of roof assemblies comprises two supporting plates b9 which can be synchronously unfolded and folded in a V shape.

The end part of the supporting plate a1 is provided with an engaging tooth part a, and the end part of the supporting plate b9 is provided with an engaging tooth part b; the supporting plate a1 and the supporting plate b9 are respectively connected with the supporting mechanism in a damping rotation way, so that the supporting plate a1 and the supporting plate b9 can be stably maintained in the adjusted orientation. The bottom of the supporting plate a1 is provided with a supporting pad a10, and the supporting pad a10 can increase friction between the supporting plate a1 and a placing table top, so that the stability of the whole bracket during placing is improved; the top of the supporting plate b9 is provided with a supporting pad b11, the top of the bottom end of the supporting pad b11 on two supporting plates b9 in a group of top plate assemblies which are distributed downwards is provided with a baffle table 111, and the baffle table 111 can limit a tablet personal computer or a mobile phone or a book placed on the supporting pad b11 and prevent the tablet personal computer or the mobile phone or the book from falling.

The four connection forms of the pallet a1 and the pallet b9 are as follows:

first form of connection: as shown in fig. 7, two pallets a1 in the same group of bottom plate assemblies are engaged and connected by the engagement teeth a, and two pallets b9 in the same group of top plate assemblies are engaged and connected by the engagement teeth b. Namely, four supporting plates a1 in the bottom plate mechanism are connected in a two-by-two meshed mode, four supporting plates b9 in the top plate mechanism are connected in a two-by-two meshed mode, and the two supporting plates a1 in the bottom plate assembly can be unfolded to be V-shaped or folded to be in a straight shape; similarly, the two supporting plates b9 in the top plate assembly can be unfolded to be V-shaped or folded to be in a straight shape, and can stably support placed articles.

Second form of connection: as shown in fig. 5, two pallets a1 in the same group of bottom plate assemblies are engaged and connected by engaging teeth a, and two pallets b9 in the same group of top plate assemblies are engaged and connected by engaging teeth b. Two supporting plates a1 in one group of bottom plate components are respectively in meshed connection with two supporting plates a1 in the other group of bottom plate components through a meshed tooth part a. Namely, four support plates a1 in the bottom plate mechanism are sequentially connected in a meshed mode, and synchronous unfolding or folding of the four support plates a1 can be realized by only rotating one support plate a1 in the four support plates a1, so that the device is very convenient. The four pallets b9 in the roof mechanism are engaged two by two, and the final unfolding form of the roof mechanism can be confirmed through two adjustments.

Third connection form: as shown in fig. 6, two pallets a1 in the same group of bottom plate assemblies are engaged and connected by the engagement teeth a, and two pallets b9 in the same group of top plate assemblies are engaged and connected by the engagement teeth b. Two supporting plates b9 in one group of top plate assemblies are respectively in meshed connection with two supporting plates b9 in the other group of top plate assemblies through the meshing teeth b. That is, the four pallets a1 in the floor mechanism are engaged with each other two by two, and the final developed form of the roof mechanism can be confirmed by two adjustments. Four supporting plates b9 in the top plate mechanism are sequentially connected in a meshed mode, and among the four supporting plates b9, synchronous unfolding or folding of the four supporting plates b9 can be achieved only by rotating one supporting plate b9, so that the device is very convenient.

Fourth connection form: as shown in fig. 8, two pallets a1 in the same group of bottom plate assemblies are engaged and connected by engaging teeth a, and two pallets b9 in the same group of top plate assemblies are engaged and connected by engaging teeth b. Two supporting plates a1 in one group of bottom plate components are respectively in meshed connection with two supporting plates a1 in the other group of bottom plate components through a meshed tooth part a. Two supporting plates b9 in one group of top plate assemblies are respectively in meshed connection with two supporting plates b9 in the other group of top plate assemblies through the meshing teeth b. That is, the four support plates a1 in the bottom plate mechanism are sequentially connected in a meshed manner, the four support plates b9 in the top plate mechanism are sequentially connected in a meshed manner, synchronous unfolding or folding of the four support plates a1 can be achieved only by rotating one support plate a1, synchronous unfolding or folding of the four support plates b9 can be achieved only by rotating one support plate b9, and the device is very convenient.

The supporting mechanism comprises a mounting plate a2, a mounting plate b3, a mounting plate c7, a mounting plate d8 and a supporting rod, wherein the mounting plate a2 is connected with the mounting plate b3, the mounting plate a2 is positioned below the mounting plate b3, and the meshing tooth part a of the supporting plate a1 is positioned between the mounting plate a2 and the mounting plate b 3. The mounting plate c7 is connected with the mounting plate d8, the mounting plate c7 is positioned below the mounting plate d8, and the meshing tooth part b of the supporting plate b9 is positioned between the mounting plate c7 and the mounting plate d 8. The two ends of the supporting rod are respectively connected with the mounting plate b3 and the mounting plate c7 in a damping rotation manner, so that the inclination angle of the top plate mechanism and the inclination angle of the supporting rod can be adjusted.

The support rod has two structural forms:

1. the support rod is a single rod, and the stable support of the top plate mechanism and the bottom plate mechanism can be realized by utilizing the single rod, so that the structure is simple.

2. The supporting rod comprises a supporting rod a4 and a supporting rod b6, the supporting rod a4 and the supporting rod b6 are rotatably connected and can be maintained in the adjusted position, and the whole supporting frame height can be adjusted by adjusting the angle of the supporting rod a4 and the supporting rod b 6. The mounting plate b3 is connected with the support rod a4 in a damping rotation mode, and the support rod b6 is connected with the mounting plate c7 in a damping rotation mode.

When the support rod comprises a support rod a4 and a support rod b6, a rotating plate 41 is connected to the bottom of the support rod a4 in a damping rotation mode, the rotating plate 41 is connected with a mounting plate b3 in a damping rotation mode, a fixed cylinder 42 is arranged on the rotating plate 41 in a penetrating mode, a bolt 43 is connected to the fixed cylinder 42 in a threaded mode, an elastic piece a44 and a rigid ball 45 are connected between the bolt 43 and the mounting plate b3 in sequence, the elastic piece a44 can be a spring, and a groove 301 for the rigid ball 45 to be clamped in is formed in the mounting plate b3 in a circular mode. When the rotating plate 41 is rotated, the rigid balls 45 alternately enter the grooves 301 and move out of the grooves 301, and under the elastic force of the elastic piece a44, a 'pyridazine' sound can be formed between the rigid balls 45 and the mounting plate b3, so that the rotating plate 41 is rotated, and the sound also shows a certain sense of high grade. When the sound during rotation is not required, the bolt 43 is adjusted upwards, so that the rigid ball 45 is not abutted by the elastic piece a44, the rigid ball 45 can only roll naturally, the sound of 'pyridazine' is not emitted, and the mute operation is realized.

The support rod a4 is provided with a sliding frame 5 in a sliding manner, the sliding frame 5 is provided with a clamping column 51, an elastic piece b52 is connected between the sliding frame 5 and the support rod a4, and the elastic piece b52 can adopt a spring; the supporting rod b6 is provided with a clamping groove 601 for the clamping column 51 to clamp in, and the clamping groove 601 is fan-shaped or circular and is provided with a plurality of clamping grooves. When the unfolding angles of the support rod a4 and the support rod b6 are adjusted, the sliding frame 5 is pulled in the direction away from the support rod b6, so that the clamping column 51 is separated from the clamping groove 601, and at the moment, the elastic piece b52 is compressed; the support rod b6 is rotated to a required angle, then the sliding frame 5 is loosened, the elastic piece b52 pushes the sliding frame 5 to move reversely, the sliding frame 5 drives the clamping column 51 to move, the clamping column 51 is clamped on the other clamping groove 601 to limit, and relative rotation between the support rod a4 and the support rod b6 is prevented. The sliding frame 5 can be provided with anti-skid patterns, so that the pulling operation is convenient.

The folding type folding seat is stronger in folding performance, smaller in occupied space after folding, lighter in weight and convenient to carry. The four supporting plates a1 and the four supporting plates b9 are distributed in a dispersed manner and can be connected in various connection modes, folding adjustment in various modes can be carried out, the adjustment process is flexible and convenient, and after the support is completely folded, the size of the whole support is smaller, the weight is smaller, and the support is more convenient to carry.

Example two

As shown in fig. 9-12, in the foldable stand according to the present embodiment, compared with the first embodiment, a limit post b18 and a guide post 19 are coaxially disposed on a support rod a4, a plurality of tooth slots b are uniformly disposed on one axial end of the limit post b18 in a circular shape, a sliding rod 16 is rotatably disposed on the limit post b18 and the guide post 19, the sliding rod 16 is connected with a knob 17, the sliding rod 16 has a cylindrical cam portion a, and the guide post 19 has a cylindrical cam portion b abutting against the cylindrical cam portion a; the support rod b6 is provided with a mounting column 13, the support rod b6 is provided with a limiting column a15 in a sliding manner, an elastic piece c14 is connected between the mounting column 13 and the limiting column a15, the elastic piece c14 can be a spring, the limiting column a15 is abutted to the end part of the sliding rod 16, and a plurality of tooth grooves a corresponding to the tooth grooves b are uniformly formed in the circular shape at one end of the limiting column a15, facing the limiting column b 18.

In this embodiment, when the angle between the strut a4 and the strut b6 needs to be adjusted, that is, the height of the whole bracket is adjusted, the knob 17 is rotated, the knob 17 drives the sliding rod 16 to rotate, the cylindrical cam portion a of the sliding rod 16 is squeezed out by the cylindrical cam portion b, the sliding rod 16 slides towards the limit post a15, the sliding rod 16 pushes the limit post a15, the elastic piece c14 is compressed, the tooth slot a on the limit post a15 is disengaged from the tooth slot b on the limit post b18, and at this time, the strut b6 can be rotated to adjust. After the adjustment is finished, the knob 17 is loosened, the elastic piece c14 pushes the limiting column a15, the limiting column a15 pushes the sliding rod 16, the cylindrical cam part a of the sliding rod 16 moves to a position matched with the cylindrical cam part b, at the moment, the limiting column a15 is clamped on the limiting column b18, the position of the supporting rod b6 is limited, and the top plate mechanism can be stably supported.

Example III

As shown in fig. 9 and 10, in the foldable stand according to the present embodiment, compared with the second embodiment, in the four trays a1 of the two sets of bottom plate assemblies, two trays a1 distributed in a staggered manner are integrally connected, after the trays a1 are connected in pairs, a tray c121 and a tray d122 are respectively formed, and the tray c121 and the tray d122 are connected in an X-shaped rotation.

In this embodiment, the supporting plate c121 and the supporting plate d122 form an "X" -shaped adjustable structure, and the supporting plate c121 and the supporting plate d122 can be folded or unfolded by holding, so that the operation is convenient, and the degree of structural integration is high.

Example IV

Compared with the first embodiment, in the embodiment, the support rod a4 and the support rod b6 are connected in a damping rotation mode, and the position stability of the two support rods after adjustment is achieved by using damping force.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (12)

1. A foldable stand, comprising:

the bottom plate mechanism comprises two groups of bottom plate assemblies, and each group of bottom plate assemblies comprises two supporting plates a (1) which can be synchronously unfolded and folded in a V shape;

the top plate mechanism comprises two groups of top plate assemblies, and each group of top plate assemblies comprises two supporting plates b (9) which can be synchronously unfolded and folded in a V shape; and

and a supporting mechanism for supporting the bottom plate mechanism and the top plate mechanism.

2. A foldable stand according to claim 1, characterized in that the ends of the pallets a (1) have engagement teeth a, by means of which engagement teeth a two pallets a (1) of the same group of floor elements are engaged; the end parts of the supporting plates b (9) are provided with meshing teeth parts b, and the two supporting plates b (9) in the same group of top plate assemblies are in meshing connection through the meshing teeth parts b; the supporting plate a (1) and the supporting plate b (9) are respectively connected with the supporting mechanism in a damping rotation way.

3. A foldable stand according to claim 2, characterized in that two pallets a (1) of one group of floor elements are in engagement connection with two pallets a (1) of the other group of floor elements, respectively, by means of engagement teeth a.

4. A foldable stand according to claim 2 or 3, characterized in that two pallets b (9) of one set of top plate assemblies are respectively in engagement connection with two pallets b (9) of the other set of top plate assemblies by means of engagement teeth b.

5. A foldable stand according to claim 4, characterized in that the bottom of the pallet a (1) is provided with a support pad a (10); the top of the supporting plate b (9) is provided with a supporting pad b (11), and the top of the bottom ends of the supporting pads b (11) on two supporting plates b (9) in a group of top plate assemblies which are distributed downwards are provided with a baffle (111).

6. A foldable stand according to claim 1, wherein the support mechanism comprises a mounting plate a (2), a mounting plate b (3), a mounting plate c (7), a mounting plate d (8) and a support bar, the mounting plate a (2) is connected with the mounting plate b (3), the mounting plate a (2) is positioned below the mounting plate b (3), the mounting plate c (7) is connected with the mounting plate d (8), and the mounting plate c (7) is positioned below the mounting plate d (8); two ends of the supporting rod are respectively connected with the mounting plate b (3) and the mounting plate c (7) in a damping rotation way.

7. A foldable stand according to claim 6, characterized in that the support bar comprises a strut a (4) and a strut b (6), the strut a (4) and the strut b (6) being rotatably connected and being maintained in an adjusted orientation, the mounting plate b (3) being in damped rotational connection with the strut a (4), the strut b (6) being in damped rotational connection with the mounting plate c (7).

8. The foldable bracket according to claim 7, wherein a rotating plate (41) is connected to the bottom of the supporting rod a (4) in a damping rotating manner, the rotating plate (41) is connected to the mounting plate b (3) in a damping rotating manner, a fixing cylinder (42) is arranged on the rotating plate (41) in a penetrating manner, the fixing cylinder (42) is connected with a bolt (43) in a threaded manner, an elastic piece a (44) and a rigid ball (45) are sequentially connected between the bolt (43) and the mounting plate b (3), and a groove (301) for the rigid ball (45) to be clamped in is formed in a circular shape on the mounting plate b (3).

9. A foldable stand according to claim 7, characterized in that the strut a (4) is connected in damped rotation with the strut b (6).

10. A foldable stand according to claim 7, characterized in that the support rod a (4) is provided with a sliding frame (5) in a sliding manner, the sliding frame (5) is provided with a clamping column (51), and an elastic piece b (52) is connected between the sliding frame (5) and the support rod a (4); the support rod b (6) is provided with a clamping groove (601) for clamping the clamping column (51), and a plurality of clamping grooves (601) are arranged in a fan shape or a round shape.

11. The foldable bracket according to claim 7, wherein a limit post b (18) and a guide post (19) are coaxially arranged on the support post a (4), a plurality of tooth grooves b are uniformly formed in one axial end of the limit post b (18) in a circular shape, a sliding rod (16) is rotatably arranged on the limit post b (18) and the guide post (19), the sliding rod (16) is connected with a knob (17), the sliding rod (16) is provided with a cylindrical cam part a, and the guide post (19) is provided with a cylindrical cam part b abutted with the cylindrical cam part a; be provided with erection column (13) on branch b (6), the slip is provided with spacing post a (15) on branch b (6), is connected with elastic component c (14) between erection column (13) and spacing post a (15), spacing post a (15) butt is in sliding rod (16) tip, and spacing post a (15) are circular evenly to be provided with a plurality of tooth's socket a that correspond with tooth's socket b towards the one end of spacing post b (18).

12. The foldable stand of claim 11, wherein, among four trays a (1) in two sets of base plate assemblies, two trays a (1) in staggered distribution are integrally connected, the trays a (1) are connected in pairs to form a tray c (121) and a tray d (122), respectively, and the tray c (121) and the tray d (122) are in an X-shaped rotation connection.