Folding support and support structure

Abstract

The invention discloses a folding bracket and a bracket structure. The folding bracket comprises a vertical rod unit, a mounting unit, an unfolding arm and a fixing unit, the vertical rod unit comprises a vertical rod and a wing plate, and the wing plate is provided with a shaft hole part and a pin hole part. The mounting unit comprises a movable plate arranged on the wing plate, and the movable plate is provided with a through hole part and an insertion hole part. The fixing unit comprises a fixing set with a rotating shaft and a plug pin set, the rotating shaft is used for fixing the movable plate to the wing plate and enabling the movable plate to rotate relative to the wing plate, the plug pin set is provided with a pin base, an elastic piece and a plug pin, the elastic piece can abut against the plug pin in a pressing mode, and the plug pin set is provided with a plug pin. And under the condition that the movable plate rotates until the pin hole part is aligned with the insertion hole part, the bolt can penetrate through the pin hole part and the insertion hole part through restoring force generated by deformation of the elastic piece.

Description

TECHNICAL FIELD

[0001] The present application relates to a support and a support structure, in particular to a foldable support and a support structure. BACKGROUND

[0002] If an LED display screen is to be erected on a plane, a display screen support is usually used for setting the LED display screen. The existing display screen support is designed to be large in size so as to safely and firmly fix the LED display screen. However, the large-size display screen support is not conducive to transportation. In addition to the high transportation cost, if the display screen support is to be set on a high floor and has to be carried through an elevator, the volume of the display screen support may not be able to enter the elevator, so that the display screen support cannot be transported. SUMMARY

[0003] One of the purposes of the present application is to provide a foldable support which is convenient for transportation and assembly.

[0004] The foldable support of the present application comprises a vertical rod unit, a mounting unit, an extension arm and a fixing unit. The vertical rod unit comprises a vertical rod and a wing plate, the vertical rod has a plurality of mounting surfaces, and the wing plate is connected to one of the mounting surfaces and has a shaft hole portion and a pin hole portion. The mounting unit comprises a movable plate arranged on the wing plate, the movable plate has a through hole portion corresponding to the shaft hole portion and an insertion hole portion corresponding to the pin hole portion. The extension arm comprises a mounting end connected to the movable plate. The fixing unit comprises a fixing group and a pin group, the fixing group has a rotating shaft penetrating the shaft hole portion and the through hole portion, the rotating shaft is used for fixing the movable plate to the wing plate and allowing the movable plate to rotate relative to the wing plate, and the pin group has a pin seat, an elastic member and a pin, the pin seat has a receiving groove for arranging the pin and the elastic member, the elastic member is fixed in the receiving groove and can press against the pin, and in the case that the movable plate is rotated to align the pin hole portion and the insertion hole portion, the pin can penetrate the pin hole portion and the insertion hole portion by the restoring force generated by the deformation of the elastic member.

[0005] The foldable support of the present application, the pin has a truncated cone surface.

[0006] The foldable support of the present application, the pin seat further has a limiting portion.

[0007] The foldable support of the present application, the pin hole portion has a first pin hole, the first pin hole has a first chamfer surface, and the truncated cone surface of the pin can correspond to the first chamfer surface.

[0008] The foldable support of the present application, the insertion hole portion has a first insertion hole for fixing the pin seat, and the limiting portion of the pin seat abuts against the movable plate.

[0009] The folding support of the present application, the jack hole portion has a second jack hole with a second chamfered surface, and the truncated cone surface of the jack corresponds to the second chamfered surface.

[0010] The folding support of the present application, the pin hole portion has a second pin hole for fixing the pin seat, and the limiting portion of the pin seat abuts against the wing plate.

[0011] The folding support of the present application, the movable plate has a movable abutting portion, and the mounting end has a mounting abutting surface abutting against the movable abutting portion.

[0012] The folding support of the present application, the expansion arm defines a reinforcing space, and the mounting unit further comprises a reinforcing plate connected to the movable plate, the reinforcing plate being arranged in the reinforcing space and connected to the expansion arm.

[0013] The folding support of the present application, the folding support further comprises a connecting plate, the connecting plate comprising a through hole portion and a connecting hole portion, the through hole portion being used for allowing the rotating shaft to pass through, and the connecting hole portion being used for allowing the jack to pass through, the expansion arm further comprising a connecting end opposite to the mounting end, the connecting end being used for being connected to the connecting plate.

[0014] The folding support of the present application, the connecting hole portion has a first connecting hole for fixing the pin seat, and the pin seat further has a limiting portion, and the limiting portion of the pin seat abuts against the connecting plate.

[0015] The folding support of the present application, each connecting hole portion has a second connecting hole with a third chamfered surface, and the jack has a truncated cone surface, the truncated cone surface of the jack corresponding to the third chamfered surface.

[0016] The folding support of the present application, the connecting plate has a connecting abutting portion, and the connecting end has a connecting abutting surface abutting against the connecting abutting portion.

[0017] Another object of the present application is to provide a support structure which is convenient to transport and assemble.

[0018] The support structure of the present application comprises a plurality of folding supports as described above, and the folding supports are connected to each other through the connecting plates.

[0019] The beneficial effects of the present application are that the support structure can drive the movable plate to rotate relative to the wing plate through the unfolding arms of the folding support, and during the rotation, when the insertion pins are respectively aligned with the insertion hole portions, the insertion pins can pass through the pin hole portions and the insertion hole portions through the elastic members to fix the movable plate to the wing plate so that the unfolding arms can no longer rotate. In this way, the support structure can keep the unfolding arms in an unfolded state during transportation, and quickly and conveniently convert the unfolding arms to an unfolded state during use, achieving the effects of reducing the volume during transportation and saving time and labor during installation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a perspective view of an embodiment of the support structure of the present application, illustrating a plurality of unfolding arms respectively in an unfolded state;

[0021] Figure 2 is a perspective view of the embodiment, illustrating the unfolding arms respectively between an unfolded state and an unfolded state;

[0022] Figure 3 is a perspective view of the embodiment, illustrating the unfolding arms respectively in the unfolded state;

[0023] Figure 4 is a partial exploded view of the embodiment, one of the unfolding arms in an unfolded state, and the other in an unfolded state;

[0024] Figure 5 is a partial exploded view of the embodiment, illustrating the relative positions of the connecting plates when the unfolding arms are in an unfolded state;

[0025] Figure 6 is a partial cross-sectional view of the embodiment obtained from the section line VI-VI in Figure 1 , illustrating the insertion pins abutting against the wing plate when the unfolding arms are in an unfolded state;

[0026] Figure 7 is a partial cross-sectional view of the embodiment obtained from the section line VII-VII in Figure 3 , illustrating the insertion pins inserted into the first pin hole when the unfolding arms are in an unfolded state;

[0027] Figure 8 is a partial cross-sectional view of the embodiment obtained from the section line VIII-VIII in Figure 1 , illustrating the insertion pins abutting against the movable plate when the unfolding arms are in an unfolded state;

[0028] Figure 9 is a partial cross-sectional view of the embodiment obtained from the section line IX-IX in Figure 3a partial sectional view taken along the section line IX-IX in FIG. 10, showing the insertion of the pin into the second insertion hole when the extension arm is in the unfolded state;

[0029] Figure 10 is a partial sectional view taken along the section line X-X in FIG. 9, showing the abutment of the pin against the second connecting plate when the extension arm is in the folded state; Figure 1 is a partial sectional view taken along the section line X-X in FIG. 9, showing the abutment of the pin against the second connecting plate when the extension arm is in the folded state;

[0030] Figure 11 is a partial sectional view taken along the section line X-X in FIG. 9, showing the abutment of the pin against the second connecting plate when the extension arm is in the folded state; Figure 3 is a partial sectional view taken along the section line XI-XI in FIG. 10, showing the insertion of the pin into the second connecting hole when the extension arm is in the unfolded state. DETAILED DESCRIPTION

[0031] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0032] Before the present application is described in detail, it is to be understood that, in the following description, like elements are referred to with like numerals throughout the description.

[0033] Referring to Figures 1 to 3 An embodiment of the support structure of the present application, which can be used, for example, for fixing an LED display screen to be erected on a plane, is not limited to this use. The support structure comprises a plurality of folding supports 100, each of which comprises a plurality of upright rod units 1, a plurality of mounting units 2, a plurality of extension arms 3, a plurality of fixing units 4, and a plurality of connecting plates 5.

[0034] In the present embodiment, the upright rod units 1 and the mounting units 2 each have two implementation modes, and the first implementation mode of the upright rod units 1 and the mounting units 2 will be described first.

[0035] Referring to Figure 3 and Figure 4 , Figure 6 and Figure 7Each vertical rod unit 1 includes a base 11, a vertical rod 12 and a plurality of wing plates 13. The vertical rod 12 is connected to the base 11 to stand on a plane and has a plurality of mounting surfaces 121 connected to each other. In this embodiment, the wing plates 13 are respectively arranged on two opposite mounting surfaces 121 of the vertical rod 12, and the wing plates 13 are respectively arranged at the middle position of each mounting surface 121 and at one end away from the base 11, but the number and connection position of the wing plates 13 are not limited thereto. Each wing plate 13 is in an L shape and has an axle hole portion 131 and a pin hole portion 132, and one side of the short edge of each wing plate 13 is connected to one of the two mounting surfaces 121. The pin hole portion 132 has a first pin hole 133 with a first chamfered surface 134, and the axle hole portion 131 and the first pin hole 133 are arranged in a first direction D1.

[0036] Referring to Figure 4 , Figure 6 and Figure 7 , each mounting unit 2 has a movable plate 21 and a reinforcing plate 22 connected to the movable plate 21. The movable plate 21 is arranged on the corresponding wing plate 13 and has a through hole portion 211 corresponding to the axle hole portion 131, a plug hole portion 212 corresponding to the pin hole portion 132, and a movable abutting portion 213. The plug hole portion 212 has a first plug hole 214 corresponding to the first pin hole 133, and the through hole portion 211 and the first plug hole 214 are arranged in the short edge direction of the reinforcing plate 22.

[0037] Referring to Figures 3 to 5 , each spread arm 3 has a mounting end 31 and a connecting end 32 and defines a reinforcing space 33. The mounting end 31 has a mounting abutting surface 311 abutting against the corresponding movable abutting portion 213. The connecting end 32 is opposite to the mounting end 31 and has a connecting abutting surface 321. The reinforcing space 33 is used for arranging and connecting the reinforcing plate 22, so that the spread arm 3 can be connected to the corresponding movable plate 21 through the reinforcing plate 22 and the movable abutting portion 213, and the reinforcing plate 22 can be used for more stable connection of the spread arm 3 to the movable plate 21.

[0038] Referring to Figure 4 , Figure 6 and Figure 7Each fixed unit 4 includes a fixed set 41 and a latch set 42. The fixed set 41 includes a pivot 411 and a nut 412. The pivot 411 can be inserted through the shaft hole 131 and the through hole 211 to fix the movable plate 21 to the wing plate 13, and can allow the movable plate 21 to rotate relative to the wing plate 13. The pivot 411 is inserted through the wing plate 13 first and then inserted through the movable plate 21, and the nut 412 is locked to the movable plate 21. The latch set 42 has a latch seat 421, a spring 422, and a latch 423. The latch seat 421 has a receiving groove 424 and a limiting portion 425. The receiving groove 424 has an opening facing the movable plate 21, and is used for disposing the latch 423 and the spring 422. The latch seat 421 is fixed to the first insertion hole 214, and the limiting portion 425 abuts against the movable plate 21 to limit the insertion degree of the latch seat 421. The spring 422 is fixed to the receiving groove 424 and can press against the latch 423. The latch 423 has a truncated conical surface 426, and the truncated conical surface 426 can correspond to the first chamfered surface 134.

[0039] Referring to Figure 5 , Figure 10 and Figure 11 , each connecting plate 5 has a connecting abutting portion 51, a through hole portion 52, and a connecting hole portion 53. The through hole portion 52 is used for inserting the pivot 411, and the connecting hole portion 53 is used for inserting the latch 423. The connecting abutting portion 51 abuts against the connecting abutting surface 321 of the connecting end 32, so that the connecting plate 5 is connected with the extension arm 3. The connecting plate 5 has two implementation manners, and the two implementation manners cooperate with each other. In one implementation manner (hereinafter referred to as a first connecting plate 5a), the connecting hole portion 53 of the first connecting plate 5a has a first connecting hole 531 for fixing the latch seat 421. In another implementation manner (hereinafter referred to as a second connecting plate 5b), the connecting hole portion 53 of the second connecting plate 5b has a second connecting hole 532 corresponding to the first connecting hole 531, and the second connecting hole 532 has a third chamfered surface 533, and the truncated conical surface 426 of the latch 423 can correspond to the third chamfered surface 533. Further, one folding support 100 of the support structure includes at least one first connecting plate 5a, and another folding support 100 includes at least one second connecting plate 5b, the latch seat 421 is fixed to the first connecting hole 531 and the limiting portion 425 abuts against the first connecting plate 5a, the pivot 411 is inserted through the through hole portion 52 of the second connecting plate 5b first and then inserted through the through hole portion 52 of the first connecting plate 5a, and the nut 412 is locked to the first connecting plate 5a.

[0040] The second embodiment of the stand unit 1 and the mounting unit 2 is described below.

[0041] Referring to Figure 4 , Figure 8 and Figure 9 , the second embodiment of each stand unit 1 is substantially the same as the first embodiment, except that the pin hole portion 132 of the wing plate 13 has a second pin hole 135, and the shaft hole portion 131 and the second pin hole 135 are arranged in a second direction D2 perpendicular to the first direction D1. The shaft 411 is inserted through the movable plate 21 and then through the wing plate 13, and the nut 412 is locked to the wing plate 13. The pin seat 421 is fixed to the second pin hole 135, and the limiting portion 425 abuts against the wing plate 13 to limit the insertion depth of the pin seat 421.

[0042] The second embodiment of each mounting unit 2 is substantially the same as the first embodiment, except that the insertion hole portion 212 of the movable plate 21 has a second insertion hole 215 corresponding to the second pin hole 135, and the through hole portion 211 and the second insertion hole 215 are arranged in the long edge direction of the reinforcing plate 22. The second insertion hole 215 has a second chamfer surface 216, and the truncated conical surface 426 corresponds to the second chamfer surface 216.

[0043] In this embodiment, each stand 12 of the support structure has two wing plates 13 and two movable plates 21 of the first and second embodiments respectively mounted on the opposite mounting surfaces 121, and each movable plate 21 is connected to an extension arm 3. In other words, the wing plates 13 mounted on one of the two mounting surfaces 121 have the first pin hole 133 and the movable plates 21 have the first insertion hole 214, respectively, while the wing plates 13 mounted on the other of the two mounting surfaces 121 have the second pin hole 135 and the movable plates 21 have the second insertion hole 215, respectively, and the extension arms 3 between the stands 12 are also connected to the first connecting plates 5a, while the other two extension arms 3 between the stands 12 are connected to the second connecting plates 5b.

[0044] In addition, if the volume of the support structure is to be further expanded, the upright rods 12, after the wing plates 13 have connected the movable plates 21 and the arms 3, can further connect the arms 3 by the connecting plates 5. For example, the arms 3 between the upright rods 12 can also be at least three in number and connected to each other by the connecting plates 5, or the arms 3 on both sides of the upright rods 12 can be further connected by the connecting plates 5, that is, the number of arms 3 is not limited to two arms 3 on each side of each upright rod unit 1 in the embodiment, and the number of arms 3 can be expanded or reduced according to the user's needs. In addition, the wing plates 13 and the movable plates 21 connected by the upright rods 12 can both be the first embodiment or both be the second embodiment, as long as the arms 3 can be unfolded and fixed.

[0045] The following is a description of the operation of the configuration of the embodiment, but the operation sequence is only an exemplary description, and is not limited thereto. The user can adjust it according to the user's usage habits.

[0046] Referring to Figures 1 to 3 , the arms 3 can be converted from an unfolded state (as shown in Figure 1 ) to an unfolded state (as shown in Figure 3 ). When the user wants to use the support structure and the arms 3 are in the unfolded state, the movable plates 21 are moved away from the upright rods 12 (as shown in Figure 2 ) until the insertion hole portions 212 correspond to the pin hole portions 132.

[0047] Referring to Figure 6 and Figure 7 , more specifically, in the first embodiment, the pins 423 abut against the wing plates 13 (as shown in Figure 6 ) when the arms 3 are not in the unfolded state, and slide on the wing plates 13 along the movement track of the arms 3, and the elastic members 422 are compressed by the pins 423 to generate a restoring force. Then, when the arms 3 are rotated to align the first insertion hole portions 214 with the first pin hole portions 133 (as shown in Figure 7 ), the pins 423 are inserted into the first pin hole portions 133 from the first insertion hole portions 214 by the restoring force to fix the movable plates 21 to the wing plates 13 so that the arms 3 are no longer rotated.

[0048] Referring to Figure 8 and Figure 9More specifically, in the second embodiment, the pins 423 are respectively abutted against the movable plates 21 (as shown in Figure 8 Fig. 2) when the arms 3 are not in the unfolded state, and the movable plates 21 slide on the wings 13 along the moving track of the arms 3 relative to the pins 423, and the elastic members 422 are compressed by the pins 423 to generate restoring force. Then, when the arms 3 are rotated to the second pin holes 135 corresponding to the second insertion holes 215 (as shown in Figure 9 Fig. 3), the pins 423 are inserted into the second insertion holes 215 from the second pin holes 135 by the restoring force to fix the movable plates 21 on the wings 13 so that the arms 3 can no longer be rotated.

[0049] When the arms 3 between the stands 12 are in the unfolded state, the stands 12 are pulled to move away from each other to drive the arms 3 provided with the connecting plates 5 to move away from the corresponding stands 12 until the arms 3 are rotated to the first connecting holes 531 corresponding to the second connecting holes 532.

[0050] Referring to Figure 10 and Figure 11 More specifically, the pins 423 are respectively abutted against the second connecting plates 5b (as shown in Figure 10 Fig. 4) when the arms 3 are not in the unfolded state, and slide on the second connecting plates 5b along the moving track of the arms 3, and the elastic members 422 are compressed by the pins 423 to generate restoring force. Then, when the arms 3 are rotated to the first connecting holes 531 corresponding to the second connecting holes 532 (as shown in Figure 11 Fig. 5), the pins 423 are inserted into the second connecting holes 532 from the first connecting holes 531 of the connecting hole portions 53 by the restoring force to fix the first connecting plates 5a on the second connecting plates 5b so that the arms 3 can no longer be rotated.

[0051] Therefore, the support structure can keep the arms 3 in the unfolded state during transportation to make transportation convenient by reducing the overall volume. When the support structure is unfolded for use, the movable plates 21 can be fixed on the wings 13 by rotating the arms 3 and pulling the stands 12, and the first connecting plates 5a can be fixed on the second connecting plates 5b, so that the assembly of the support structure can be completed, which not only saves time and effort but also is convenient to operate, and the structure can provide the LED display screen stably and firmly fixed on the support structure.

[0052] In summary, the support structure can drive the movable plate 21 to rotate relative to the wing plate 13 by the unfolding arm 3 of the folding support 100. During the rotation, when the insertion pins 423 are respectively aligned with the insertion hole portions 212, the insertion pins 423 can be inserted into the pin hole portions 132 and the insertion hole portions 212 through the elastic members 422, so as to fix the movable plate 21 to the wing plate 13 and make the unfolding arm 3 no longer rotate. In this way, the support structure can keep the unfolding arm 3 in an unfolded state during transportation, and quickly and conveniently convert the unfolding arm 3 to an unfolded state during use, so as to achieve the effects of reducing the volume during transportation and saving time and labor during installation, and thus truly achieve the purposes of the present application.

[0053] The above is only an embodiment of the present application, and cannot limit the scope of the present application. Any simple equivalent changes and modifications made according to the content of the claims and the specification of the present application are still within the scope of the present application.

Claims

1. A foldable stand; characterized in that, The folding bracket comprises: a vertical rod unit including a vertical rod having a plurality of mounting surfaces and a wing plate connected to one of the mounting surfaces and having a shaft hole portion and a pin hole portion; a mounting unit including a movable plate provided on the wing plate, the movable plate having a through hole portion corresponding to the shaft hole portion and a insertion hole portion corresponding to the pin hole portion; an extension arm including a mounting end connected to the movable plate; and a fixing unit including a fixing group having a rotating shaft penetrating the shaft hole portion and the through hole portion, the rotating shaft being used to fix the movable plate to the wing plate and allowing the movable plate to rotate relative to the wing plate, and a pin group having a pin seat, an elastic member and a pin, the pin seat having a receiving slot for the pin and the elastic member, the elastic member being fixed to the receiving slot and being able to press against the pin, the pin being able to penetrate the pin hole portion and the insertion hole portion by a restoring force generated by the deformation of the elastic member when the movable plate is rotated to align the pin hole portion and the insertion hole portion. The pin has a truncated conical surface.

2. The foldable stand of claim 1, wherein: The pin seat further has a limiting portion.

3. The foldable stand of claim 1, wherein: The pin hole portion has a first pin hole having a first chamfer surface, and the truncated conical surface of the pin is able to correspond to the first chamfer surface.

4. The foldable stand of claim 2, wherein: The insertion hole portion has a first insertion hole for fixing the pin seat, and the limiting portion of the pin seat abuts against the movable plate.

5. The foldable stand of claim 3, wherein: The insertion hole portion has a second insertion hole having a second chamfer surface, and the truncated conical surface of the pin is able to correspond to the second chamfer surface.

6. The foldable stand of claim 2, wherein: The pin hole portion has a second pin hole for fixing the pin seat, and the limiting portion of the pin seat abuts against the wing plate.

7. The foldable stand of claim 3, wherein: The movable plate has a movable abutting portion, and the mounting end has a mounting abutting surface abutting against the movable abutting portion.

8. The foldable stand of claim 1, wherein: The extension arm defines a reinforcing space, and the mounting unit further includes a reinforcing plate connected to the movable plate, the reinforcing plate being arranged in the reinforcing space and connected to the extension arm.

9. The foldable stand of claim 1, wherein: The folding bracket further includes a connecting plate having a penetrating portion for the rotating shaft to penetrate and a connecting hole portion for the pin to penetrate, and the extension arm further includes a connecting end opposite to the mounting end, the connecting end being used to connect to the connecting plate.

10. The foldable stand of claim 1, wherein: The connecting hole portion has a first connecting hole for fixing the pin seat, and the pin seat further has a limiting portion and the limiting portion of the pin seat abuts against the connecting plate.

11. The foldable stand of claim 10, wherein: Each connecting hole portion has a second connecting hole having a third chamfer surface, and the pin has a truncated conical surface, the truncated conical surface of the pin being able to correspond to the third chamfer surface.

12. The foldable stand of claim 10, wherein: The connecting plate has a connecting abutting portion, and the connecting end has a connecting abutting surface abutting against the connecting abutting portion.

13. The foldable stand of claim 10, wherein: The bracket structure comprises:

14. A stent structure; characterized by, a plurality of folding brackets as claimed in any one of claims 10 to 13, the folding brackets being connected to each other by the connecting plates, respectively. ​

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