Foldable support

Abstract

The foldable support comprises a base and a supporting assembly, a containing cavity is formed in the base, the supporting assembly is installed in the containing cavity, the supporting assembly comprises a first supporting plate, a second supporting plate and an elastic piece, the first supporting plate and the second supporting plate are connected in a sliding mode, and the elastic piece abuts against the first supporting plate and the second supporting plate respectively; the two opposite inner side faces of the containing cavity and the supporting assembly are provided with first arc-shaped grooves and clamping blocks in sliding fit with the first arc-shaped grooves correspondingly, each first arc-shaped groove comprises an unfolding limiting section, a guiding section and a folding limiting section which are sequentially communicated, and the depth of the unfolding limiting section and the depth of the folding limiting section are both larger than that of the guiding section. The foldable support can be folded when not in use. When the electronic terminal equipment needs to be used, the supporting assembly is unfolded, the clamping block moves to the unfolding limiting section, and at the moment, under the action of the elastic piece, the supporting assembly can stably maintain the state that the clamping block is located in the unfolding limiting section so that the electronic terminal equipment can be conveniently supported.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic accessories, in particular to a foldable bracket. Background Art

[0002] With the continuous development of science and technology and the continuous improvement of people's quality of life, more and more people have portable electronic devices, such as tablets or mobile phones. Tablets have become the most popular personal computer products after clamshell laptops because they are easy to carry, easy to operate, and have a larger display screen than mobile phones. However, since tablets are heavier than mobile phones, holding tablets for a long time will cause a greater burden on the hands. Therefore, users use the stand to place them on a desktop or flat surface most of the time except for occasional hand-held use. At present, many tablet stands on the market have foldable functions, which can be convenient for users to carry, and most of the foldable tablet stands on the market use damping shafts or support rods for angle limiting. With the increase in the number of uses, the damping shaft of the foldable tablet stand with a damping shaft is prone to loosening, which makes it difficult for the tablet stand to maintain the preset expansion angle when supporting, and even cannot provide sufficient support for the electronic device; the foldable tablet stand with a support rod needs to pay attention to the support rod not being hit by foreign objects, otherwise the tablet stand will quickly fall down and the electronic device will fall, which is easy to cause damage to the electronic device. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a foldable support which can stably maintain an unfolded state for supporting.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a foldable bracket comprises a base and a support assembly, the base is provided with a receiving cavity, and the support assembly is installed in the receiving cavity; the support assembly comprises a first support plate, a second support plate and an elastic member, the first support plate and the second support plate are slidably connected, and two ends of the elastic member respectively abut against the first support plate and the second support plate;

[0005] A first arc groove is respectively provided on one side of the first support plate and the second support plate which are away from each other, and a clamping block which slidably cooperates with the first arc groove is respectively provided on two opposite inner sides of the receiving cavity, or a clamping block is respectively provided on one side of the first support plate and the second support plate which are away from each other, and a first arc groove which slidably cooperates with the clamping block is respectively provided on two opposite inner sides of the receiving cavity;

[0006] The first arc-shaped groove includes an expansion limit section, a guide section and a folding limit section which are connected in sequence, and the depths of the expansion limit section and the folding limit section are both greater than the guide section.

[0007] Furthermore, the support assembly also includes at least one connecting rod, and the first support plate and the second support plate are respectively plugged into and matched with the connecting rod.

[0008] Furthermore, the elastic member is sleeved on the connecting rod.

[0009] Furthermore, the elastic member is a spring, a spring sheet or a spring washer.

[0010] Furthermore, a first connecting slope is provided at a connection between the unfolding limit section and the guiding section, and a second connecting slope is provided at a connection between the folding limit section and the guiding section.

[0011] Furthermore, a curved boss and a second curved groove slidably matched with the curved boss are respectively provided on the contact surface between the support assembly and the base, and the curved boss and the first curved groove are arranged on a coaxial center axis.

[0012] Furthermore, the base includes a first bottom plate and a second bottom plate, the first bottom plate and the second bottom plate are detachably connected, and the first bottom plate and the second bottom plate together form the receiving cavity.

[0013] Furthermore, the base also includes a connecting screw, the first bottom plate is provided with a through hole for the connecting screw to pass through, and the second bottom plate is provided with a threaded hole that cooperates with the connecting screw.

[0014] Furthermore, the base or the support assembly is provided with a plurality of mounting holes.

[0015] The beneficial effect of the utility model is that the support assembly and the base of the foldable bracket can be folded together when idle, thereby reducing the occupied space and making it convenient for users to carry. At this time, the card block is located in the folding limit section of the first arc groove. When the foldable bracket needs to be used, force is applied to the support assembly so that the first support plate and the second support plate slide close to each other and rotate relative to the base, so that the card block moves to the unfolding limit section through the guide section. At this time, under the elastic force of the elastic member, the support assembly will stably maintain the card block in the unfolding limit section. The foldable bracket can stably maintain a preset unfolding angle to facilitate supporting electronic terminal equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the foldable bracket in the first embodiment of the present utility model in an unfolded state;

[0017] Figure 2 This is a schematic structural diagram of the foldable bracket in the folded state according to the first embodiment of the utility model;

[0018] Figure 3A top view of the foldable bracket in the first embodiment of the utility model in the unfolded state;

[0019] Figure 4 for Figure 3 AA section view;

[0020] Figure 5 This is an exploded view of the foldable bracket of the first embodiment of the utility model;

[0021] Figure 6 This is a schematic structural diagram of the first support plate in the foldable bracket of the first embodiment of the utility model.

[0022] Description of labels:

[0023] 1. Base; 11. Accommodating cavity; 12. Block; 13. Second arc groove; 14. First bottom plate; 15. Second bottom plate; 16. Connecting screws; 17. Mounting hole; 18. Interference part;

[0024] 2. first support plate; 21. first arc-shaped groove; 211. unfolding limit section; 212. guide section; 213. folding limit section; 214. first connecting inclined surface; 215. second connecting inclined surface; 22. arc-shaped boss; 221. limit portion;

[0025] 3. The second support plate;

[0026] 4. Elastic parts;

[0027] 51. Guide connecting rod; 52. Assembly connecting rod. DETAILED DESCRIPTION

[0028] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0029] Please refer to Figures 1 to 6 A foldable bracket comprises a base 1 and a support assembly, wherein the base 1 is provided with a receiving cavity 11, and the support assembly is installed in the receiving cavity 11; the support assembly comprises a first support plate 2, a second support plate 3 and an elastic member 4, wherein the first support plate 2 and the second support plate 3 are slidably connected, and two ends of the elastic member 4 respectively contact the first support plate 2 and the second support plate 3;

[0030] The first support plate 2 and the second support plate 3 are provided with a first arc groove 21 on one side away from each other, and the two opposite inner sides of the receiving cavity 11 are provided with a block 12 that slides with the first arc groove 21, or the first support plate 2 and the second support plate 3 are provided with a block 12 on one side away from each other, and the two opposite inner sides of the receiving cavity 11 are provided with a first arc groove 21 that slides with the block 12;

[0031] The first arc-shaped groove 21 includes an unfolding limit section 211 , a guiding section 212 and a folding limit section 213 which are connected in sequence. The depths of the unfolding limit section 211 and the folding limit section 213 are both greater than the depth of the guiding section 212 .

[0032] As can be seen from the above description, the beneficial effect of the utility model is that the support assembly and the base 1 of the foldable bracket can be folded together when idle, thereby reducing the occupied space and making it convenient for users to carry. At this time, the card block 12 is located in the folding limit section 213 of the first arc-shaped groove 21. When the foldable bracket needs to be used, force is applied to the support assembly so that the first support plate 2 and the second support plate 3 slide close to each other and rotate relative to the base 1, so that the card block 12 moves to the unfolding limit section 211 through the guide section 212. At this time, under the elastic force of the elastic member 4, the support assembly will stably maintain the card block 12 in the state of the unfolding limit section 211, and the foldable bracket can stably maintain the preset unfolding angle to support the electronic terminal device.

[0033] Furthermore, the support assembly further includes at least one connecting rod, and the first support plate 2 and the second support plate 3 are respectively plugged into and matched with the connecting rod.

[0034] It can be seen from the above description that the sliding connection method of the first support plate 2 and the second support plate 3 is simple and easy to assemble.

[0035] Furthermore, the elastic member 4 is sleeved on the connecting rod.

[0036] It can be seen from the above description that sleeve-arranging the elastic member 4 on the connecting rod can effectively avoid the undesirable phenomenon of displacement or deflection of the elastic member 4.

[0037] Furthermore, the elastic member 4 is a spring, a spring sheet or a spring washer.

[0038] It can be seen from the above description that the type of the elastic member 4 can be selected according to actual use requirements or production conditions.

[0039] Furthermore, a first connecting slope 214 is provided at a connection between the unfolding limiting section 211 and the guiding section 212 , and a second connecting slope 215 is provided at a connection between the folding limiting section 213 and the guiding section 212 .

[0040] It can be seen from the above description that when the first connecting bevel 214 or the second connecting bevel 215 conflicts with the block 12, the first support plate 2 and the second support plate 3 will be subjected to the lateral force and approach each other, thereby facilitating the block 12 to enter the guide section 212 from the unfolding limit section 211 or to enter the guide section 212 from the folding limit section 213.

[0041] Furthermore, a curved boss 22 and a second curved groove 13 slidably matched with the curved boss 22 are respectively provided on the contact surface between the support assembly and the base 1 , and the curved boss 22 and the first curved groove 21 are arranged coaxially.

[0042] It can be seen from the above description that the arc-shaped boss 22 and the second arc-shaped groove 13 cooperate to guide the relative rotation process between the support assembly and the base 1.

[0043] Furthermore, the base 1 includes a first bottom plate 14 and a second bottom plate 15 , the first bottom plate 14 and the second bottom plate 15 are detachably connected, and the first bottom plate 14 and the second bottom plate 15 together form the receiving cavity 11 .

[0044] It can be seen from the above description that disassembling the base 1 into the first bottom plate 14 and the second bottom plate 15 can facilitate assembling the support assembly in the receiving cavity 11 .

[0045] Furthermore, the base 1 also includes a connecting screw 16 , the first bottom plate 14 is provided with a through hole for the connecting screw 16 to pass through, and the second bottom plate 15 is provided with a threaded hole that cooperates with the connecting screw 16 .

[0046] It can be seen from the above description that the connection between the first bottom plate 14 and the second bottom plate 15 is simple and stable.

[0047] Furthermore, a plurality of mounting holes 17 are provided on the base 1 or the supporting assembly.

[0048] As can be seen from the above description, the mounting hole 17 can facilitate the user to fix the foldable bracket on the desktop with screws or the like, or to connect and fix the foldable bracket to an external component.

[0049] Please refer to Figures 1 to 6 The first embodiment of the utility model is: a foldable bracket, comprising a base 1 and a support assembly, wherein the base 1 is provided with a receiving cavity 11, and the support assembly is installed in the receiving cavity 11; the support assembly comprises a first support plate 2, a second support plate 3 and an elastic member 4, wherein the first support plate 2 and the second support plate 3 are symmetrically arranged and slidably connected, and the two ends of the elastic member 4 respectively abut against the first support plate 2 and the second support plate 3; the first support plate 2 and the second support plate 3 are respectively provided with a first arc groove 21 on a side away from each other, and the two opposite inner side surfaces of the receiving cavity 11 are respectively provided with a block 12 that slides with the first arc groove 21; the first arc groove 21 comprises an unfolding limit section 211, a guide section 212 and a folding limit section 213 that are connected in sequence, and the depths of the unfolding limit section 211 and the folding limit section 213 are both greater than the guide section 212. The central angle corresponding to the guide section 212 is greater than or equal to 90°.

[0050] In other embodiments, the first support plate 2 and the second support plate 3 are respectively provided with a block 12 on one side away from each other, and it is also feasible that the two opposite inner side surfaces of the receiving cavity 11 are respectively provided with a first arc groove 21 that slidably cooperates with the block 12 .

[0051] The support assembly and the base 1 of the foldable bracket can be folded together when idle (such as Figure 2 As shown in the figure), the occupied space is reduced and it is convenient for users to carry. At this time, the card block 12 is located in the folding limit section 213 of the first arc groove 21, and the support component is stored in the receiving cavity 11. When the foldable bracket needs to be used, force is applied to the support component to make the first support plate 2 and the second support plate 3 slide close to each other and rotate relative to the base 1, so that the card block 12 moves to the unfolding limit section 211 through the guide section 212. At this time, under the elastic force of the elastic member 4, the support component will stably maintain the card block 12 in the state of the unfolding limit section 211 (as shown in the figure). Figure 1 and Figure 4 As shown), the foldable bracket can stably maintain a preset unfolding angle to facilitate supporting the electronic terminal device.

[0052] The support assembly further includes at least one connecting rod, and the first supporting plate 2 and the second supporting plate 3 are respectively plugged into and matched with the connecting rod. Figure 1 and Figure 5 As shown, in this embodiment, there are two connecting rods, both of which are cylindrical, and the middle part of the first support plate 2 and the second support plate 3 and the end away from the first arc groove 21 are respectively provided with a circular plug hole that matches the connecting rod. The elastic member 4 is preferably a spring, and the number of the elastic member 4 is one. The two connecting rods include a guide connecting rod 51 and an assembly connecting rod 52, and the two ends of the guide connecting rod 51 are respectively plugged and matched with the ends of the first support plate 2 and the second support plate 3 away from the first arc groove 21; the assembly connecting rod 52 includes a main body and plug-in parts respectively provided at both ends of the main body, and the maximum width of the main body is greater than the maximum width of the plug-in part (since the assembly connecting rod 52 in this embodiment is circular, the maximum width is the outer diameter), and the elastic member 4 is sleeved on the assembly connecting rod 52, and the step surface between the main body and the plug-in part is used to contact the first support plate 2 or the second support plate 3 to prevent the first support plate 2 and the second support plate 3 from being too close to each other and crushing the elastic member 4. In other embodiments, the number of connecting rods may be one, three or more; it is also feasible for the connecting rod to be prism-shaped; it is also feasible for the elastic member 4 to be a spring sheet or a spring washer.

[0053] like Figure 6As shown, a first connecting slope 214 is provided at the connection between the unfolding limit section 211 and the guide section 212, and a second connecting slope 215 is provided at the connection between the folding limit section 213 and the guide section 212. When the first connecting slope 214 or the second connecting slope 215 comes into conflict with the block 12, the first support plate 2 and the second support plate 3 will be acted upon by the lateral force and move closer to each other, so that the block 12 can enter the guide section 212 from the unfolding limit section 211 along the first connecting slope 214 or enter the guide section 212 from the folding limit section 213 along the second connecting slope 215.

[0054] like Figure 4 and Figure 5 As shown, the contact surfaces of the support assembly and the base 1 are respectively provided with an arc-shaped boss 22 and a second arc-shaped groove 13 that slides with the arc-shaped boss 22, and the arc-shaped boss 22 is arranged coaxially with the first arc-shaped groove 21. In this embodiment, the side of the first support plate 2 or the second support plate 3 is provided with an arc-shaped boss 22, the first arc-shaped groove 21 is arranged on the arc-shaped boss 22, and the two opposite inner side surfaces of the receiving cavity 11 are respectively provided with a second arc-shaped groove 13 that slides with the arc-shaped boss 22, and the clamping block 12 is arranged at one end of the second arc-shaped groove 13. Further, the first arc-shaped groove 21 and the second arc-shaped groove 13 are both through grooves, and the end of the arc-shaped boss 22 close to the expansion limit section 211 is provided with a limit portion 221 that protrudes toward the side, and the end of the second arc-shaped groove 13 close to the clamping block 12 is provided with a resistance portion 18 that protrudes toward the inside, and the resistance portion 18 is used to resist the limit portion 221 to prevent the support assembly from detaching from the base 1. In other embodiments, the side of the first support plate 2 or the second support plate 3 is provided with a second arc groove 13 , and two opposite inner side surfaces of the receiving cavity 11 are respectively provided with arc bosses 22 that slidably cooperate with the second arc groove 13 .

[0055] like Figure 1 , Figure 2 and Figure 5 As shown, the base 1 includes a first bottom plate 14 and a second bottom plate 15, which are detachably connected, and the first bottom plate 14 and the second bottom plate 15 together form a receiving cavity 11. Specifically, the base 1 also includes a connecting screw 16, and the first bottom plate 14 is provided with a through hole for the connecting screw 16 to pass through, and the second bottom plate 15 is provided with a threaded hole that cooperates with the connecting screw 16.

[0056] like Figure 1 and Figure 2 As shown, the first bottom plate 14 and the second bottom plate 15 of the base 1, and the first support plate 2 and the second support plate 3 of the support assembly are provided with mounting holes 17. The mounting holes 17 can facilitate the user to fix the foldable bracket on the desktop with screws or the like, or to connect and fix the foldable bracket to an external component.

[0057] In summary, the support assembly and the base of the foldable bracket provided by the utility model can be folded and closed when idle, thereby reducing the occupied space and making it convenient for users to carry. At this time, the card block is located in the folding limit section of the first arc groove. When the foldable bracket needs to be used, force is applied to the support assembly so that the first support plate and the second support plate slide close to each other and rotate relative to the base, so that the card block moves to the unfolding limit section through the guide section. At this time, under the elastic force of the elastic member, the support assembly will stably maintain the card block in the state of the unfolding limit section, and the foldable bracket can stably maintain the preset unfolding angle to facilitate supporting the electronic terminal device. When the first connecting bevel or the second connecting bevel conflicts with the card block, the first support plate and the second support plate will be subjected to the lateral force and approach each other, thereby facilitating the card block to enter the guide section from the unfolding limit section or enter the guide section from the folding limit section. The arc boss and the second arc groove cooperate to guide the relative rotation process of the support assembly and the base. The mounting hole can facilitate the user to use screws or the like to fix the foldable bracket on the desktop, or to connect and fix the foldable bracket with an external component.

[0058] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A foldable bracket, characterized in that: The invention comprises a base and a support assembly, wherein the base is provided with a receiving cavity, and the support assembly is installed in the receiving cavity; the support assembly comprises a first support plate, a second support plate and an elastic member, wherein the first support plate and the second support plate are slidably connected, and two ends of the elastic member respectively contact the first support plate and the second support plate; A first arc groove is respectively provided on one side of the first support plate and the second support plate which are away from each other, and a clamping block which slidably cooperates with the first arc groove is respectively provided on two opposite inner sides of the receiving cavity, or a clamping block is respectively provided on one side of the first support plate and the second support plate which are away from each other, and a first arc groove which slidably cooperates with the clamping block is respectively provided on two opposite inner sides of the receiving cavity; The first arc-shaped groove includes an expansion limit section, a guide section and a folding limit section which are connected in sequence, and the depths of the expansion limit section and the folding limit section are both greater than the guide section.

2. The foldable bracket according to claim 1, characterized in that: The support assembly further includes at least one connecting rod, and the first supporting plate and the second supporting plate are respectively plug-fitted with the connecting rod.

3. The foldable bracket according to claim 2, characterized in that: The elastic member is sleeved on the connecting rod.

4. The foldable bracket according to claim 1, characterized in that: The elastic member is a spring, a spring sheet or an elastic washer.

5. The foldable bracket according to claim 1, characterized in that: A first connecting slope is provided at the connection between the unfolding limit section and the guiding section, and a second connecting slope is provided at the connection between the folding limit section and the guiding section.

6. The foldable bracket according to claim 1, characterized in that: An arc-shaped boss and a second arc-shaped groove slidingly matched with the arc-shaped boss are respectively provided on the contact surface between the support component and the base, and the arc-shaped boss and the first arc-shaped groove are arranged on the same central axis.

7. The foldable stand according to claim 1, characterized in that: The base includes a first bottom plate and a second bottom plate, the first bottom plate and the second bottom plate are detachably connected, and the first bottom plate and the second bottom plate are combined to form the receiving cavity.

8. The foldable support according to claim 7, characterized in that: The base also includes a connecting screw. The first bottom plate is provided with a through hole for the connecting screw to pass through, and the second bottom plate is provided with a threaded hole that matches the connecting screw.

9. The foldable stand according to claim 1, characterized in that: A plurality of mounting holes are provided on the base or the supporting assembly.

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