Clamping mechanism and multi-stage folding support with same

Abstract

The utility model relates to the field of supports, in particular to a clamping mechanism and a multi-stage folding support with the clamping mechanism. The device comprises a clamping mechanism and a multi-stage rod group, in the multiple levels of rod sets, each level of rod set is in damping rotation connection with the next level of rod set, the last level of rod set is in damping rotation connection with the clamping mechanism, and each level of rod set is provided with a containing space for containing the rest of the next level of rod sets and the clamping mechanism; the clamping mechanism comprises a first clamping assembly rotationally connected with the final-stage rod set and a second clamping assembly connected with the first clamping assembly in a tensioning mode, the first clamping assembly comprises two first clamping plates which can be unfolded and folded and are symmetrically distributed, and the second clamping assembly comprises two second clamping plates which can be unfolded and folded and are symmetrically distributed. When in use, the clamping device is unfolded to enlarge the clamping area and ensure the clamping stability, and when not in use, the clamping device is folded and stored to reduce the overall size.

Description

Technical Field

[0001] The utility model relates to the field of brackets, in particular to a clamping mechanism and a multi-stage folding bracket with the same. Background Art

[0002] For commonly used electronic devices, such as mobile phones, tablet computers or paper readers, clamping them with a bracket can free the user's hands and make it easier for the user to use.

[0003] For existing clamping brackets, if the clamping area is wide, the electronic device can be clamped more stably, but the size of the entire bracket will be larger and inconvenient to store. If the clamping area is narrow, although the size is small and convenient to store, it is easy to clamp the electronic device. Utility Model Content

[0004] The purpose of the present invention is to address the problems existing in the background technology and propose a clamping mechanism and a multi-stage folding bracket having the same, which can be unfolded when in use to increase the clamping area and ensure clamping stability, and folded and stored when not in use to reduce the overall size.

[0005] On the one hand, the utility model proposes a clamping mechanism, including a first clamping component, a second clamping component, and a tensioning component that tensions the first clamping component and the second clamping component; the first clamping component includes a rotating seat and two symmetrically distributed first clamping plates that can be unfolded and folded on the rotating seat, the second clamping component includes a movable seat and two symmetrically distributed second clamping plates that can be unfolded and folded on the movable seat, when the two first clamping plates are folded, they are distributed relative to each other, when the two second clamping plates are folded, they are distributed relative to each other, when the two first clamping plates and the two second clamping plates are both unfolded, the first clamping plate abuts against the rotating seat, the second clamping plate abuts against the movable seat, the first clamping plates and the second clamping plates are relatively distributed and form a clamping space.

[0006] Preferably, the tensioning assembly includes a telescopic cylinder connected to the rotating seat at one end, a top cover arranged at the other end of the telescopic cylinder, a sliding rod slidably arranged on the top cover, a first connecting platform and a second connecting platform respectively connected to the two ends of the sliding rod, a base frame slidably arranged on the sliding rod, and a spring sleeved on the outer peripheral side of the sliding rod and connected to the base frame and the top cover at both ends respectively, the second connecting platform is connected to the movable seat, the first splint is arranged on the rotating seat by means of an installation shaft for damping rotation, and the second splint is arranged on the movable seat by means of an installation shaft for damping rotation.

[0007] Preferably, the first clamping plate and the second clamping plate have the same structure, both have a card slot on the side, and the rotating seat and the movable seat both have a card platform. The card platform of the rotating seat can be inserted into the card slot on the first clamping plate, and the card platform of the movable seat can be inserted into the card slot on the second clamping plate.

[0008] On the other hand, the present invention provides a multi-stage folding bracket, comprising the above-mentioned clamping mechanism, and further comprising a multi-stage rod group, wherein the number of the multi-stage rod group is ≥1;

[0009] When the number of multi-stage rod groups is ≥2, each stage rod group is connected to the next stage rod group in a damped rotational connection, and the final stage rod group is connected to the rotating seat in the clamping mechanism in a damped rotational connection through the rotating table assembly. Each stage rod group has a storage space for accommodating the remaining subsequent stage rod groups and the clamping mechanism;

[0010] When the number of multi-stage rod groups is equal to 1, it is a single-section rod group, which is connected to the rotating seat in the clamping mechanism through a rotating table assembly for damping rotation. The single-section rod group has a storage space for accommodating the clamping mechanism.

[0011] Preferably, the turntable assembly includes a first turntable connected to the final rod group or the single-section rod group for damped rotation, and a second turntable connected to the first turntable and the turntable seat for damped rotation respectively. The rotation center axis of the first turntable is perpendicular to the rotation center axis of the second turntable, and the rotation center axis of the second turntable is perpendicular to the rotation center axis of the turntable seat.

[0012] Preferably, the number of multi-stage rod groups is equal to 2, including a primary rod group and a secondary rod group. The primary rod group includes two symmetrically distributed primary rods, and the secondary rod group includes two symmetrically distributed secondary rods. The secondary rods are located on the inner sides of the two primary rods, and the two ends of the secondary rods are respectively connected to the primary rods and the rotating table assembly for damped rotation.

[0013] Preferably, the first end of the first rod is connected to a connecting seat for damping rotation, and a pillow is provided at the bottom of the connecting seat.

[0014] Preferably, the damping rotation of the first end of the first rod is connected to a clamping seat, a clamping plate is provided on the side of the clamping seat, an internal thread is provided on the clamping seat, a through hole is provided on the clamping plate, and the clamping seat is threadedly connected to a bolt passing through the through hole through the internal thread.

[0015] Preferably, a first clamping groove is provided on a side surface of the clamping seat facing the clamping plate, and a second clamping groove is provided on a side surface of the clamping plate facing the clamping seat facing the first clamping groove.

[0016] Preferably, the movable seat is connected with an outwardly extending pull rope.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] When in use, the first and second clamping plates are unfolded to increase the clamping area and ensure clamping stability. When not in use, the first and second clamping plates are folded and stored to reduce the overall size. This design takes into account both clamping stability and minimal storage space, resulting in high flexibility and strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention in a folded state;

[0020] Figure 2 for Figure 1 A schematic diagram of a structure in an expanded state;

[0021] Figure 3 for Figure 2 Schematic diagram of the structure after further expansion;

[0022] Figure 4 A cross-sectional view of the spacing adjustment structure between the rotating seat and the movable seat;

[0023] Figure 5 for Figure 4 A magnified view of the structure at point A;

[0024] Figure 6 It is a structural schematic diagram of the telescopic cylinder;

[0025] Figure 7 This is a schematic diagram of the structure of the second embodiment of the present invention in a folded state;

[0026] Figure 8 for Figure 7 Schematic diagram of the expanded structure.

[0027] Figure numerals: 1. primary rod; 2. connecting column; 3. secondary rod; 4. first rotating platform; 5. second rotating platform; 6. rotating seat; 601. clamping platform; 7. first splint; 701. clamping slot; 8. anti-slip pad; 9. mounting shaft; 10. telescopic cylinder; 101. buckle part; 11. base; 12. top cover; 13. sliding rod; 14. first connecting platform; 15. second connecting platform; 16. spring; 17. moving seat; 18. second splint; 19. pull rope; 20. connecting seat; 21. pillow; 22. clamping seat; 23. splint. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figures 1-6 As shown, the multi-stage folding bracket proposed in this embodiment includes a clamping mechanism and a multi-stage rod group.

[0030] The clamping mechanism comprises a first clamping assembly, a second clamping assembly, and a tensioning assembly for tensioning and connecting the first clamping assembly and the second clamping assembly. The two sets of clamping assemblies are used to clamp the electronic device on both sides.

[0031] The first clamping assembly includes a rotating base 6 and two symmetrically distributed first clamping plates 7 that can be unfolded and folded on the rotating base 6. The second clamping assembly includes a movable base 17 and two symmetrically distributed second clamping plates 18 that can be unfolded and folded on the movable base 17. When the two first clamping plates 7 are folded, they are arranged relative to each other. When the two second clamping plates 18 are folded, they are arranged relative to each other. When the two first clamping plates 7 and the two second clamping plates 18 are unfolded, the first clamping plates 7 abut against the rotating base 6, and the second clamping plates 18 abut against the movable base 17. The first clamping plates 7 and the second clamping plates 18 are arranged relative to each other and form a clamping space for clamping the electronic device. The clamping surfaces of the first clamping plates 7 and the second clamping plates 18 are flat, and anti-slip pads 8 can also be provided on the clamping surfaces.

[0032] like Figure 5 As shown, in order to improve the reliability of the connection of the anti-slip pad 8, a groove is designed on the clamping surface. The anti-slip pad 8 is connected to the groove, but it protrudes out of the groove. When the mobile phone, tablet computer or paper reader is clamped on the two sets of clamping components, it is specifically clamped between the anti-slip pads and can be firmly clamped.

[0033] In addition, outwardly extending limiting plates may be designed at both ends of the first clamping plate 7 and the second clamping plate 18 to limit the clamped electronic device and prevent it from falling off.

[0034] When adjusting the length of the clamping space, it is adjusted through the tensioning assembly. The tensioning assembly includes a telescopic cylinder 10 connected to the rotating seat 6 at one end, a top cover 12 arranged at the other end of the telescopic cylinder 10, a slide rod 13 slidably arranged on the top cover 12, a first connecting platform 14 and a second connecting platform 15 respectively connected to the two ends of the slide rod 13, a base frame 11 slidably arranged on the slide rod 13, and a spring 16 sleeved on the outer peripheral side of the slide rod 13 and connected to the base frame 11 and the top cover 12 at both ends. The second connecting platform 15 is connected to the movable seat 17, the first clamping plate 7 is arranged on the rotating seat 6 through the mounting shaft 9 for damped rotation, and the second clamping plate 18 is arranged on the movable seat 17 through the mounting shaft 9 for damped rotation. When clamping the electronic equipment, the second connecting platform 15 can be driven to move outward by pulling the movable seat 17 outward. The second connecting platform 15 drives the base frame 11 outward through the slide rod 13 and the first connecting platform 14, and the base frame 11 presses the spring 16 against the top cover 12. The distance between the movable seat 17 and the rotating seat 6 increases. After unfolding the two first clamping plates 7 and the two second clamping plates 18, the electronic device is placed between the first clamping plates 7 and the second clamping plates 18. The movable seat 17 is released, the spring 16 extends, and the first clamping plates 7 and the second clamping plates 18 clamp the electronic device in the middle.

[0035] For the connection between the telescopic cylinder 10, the rotating base 6, and the top cover 12, threaded holes can be designed on the rotating base 6 and the top cover 12, and circular holes can be provided on the telescopic cylinder 10. Screws are passed through the circular holes and threadedly connected to the threaded holes to install the rotating base 6 and the top cover 12 on the telescopic cylinder 10. To facilitate the alignment of the threaded holes and the circular holes, inward-folded snap-fit ​​portions 101 are designed at both ends of the telescopic cylinder 10, and snap-fit ​​grooves are designed on both the rotating base 6 and the top cover 12. When the telescopic cylinder 10 is slid onto the rotating base 6 and the top cover 12 is inserted into the telescopic cylinder 10, the snap-fit ​​portions 101 are automatically snapped into the snap-fit ​​grooves, completing the alignment and positioning of the parts and facilitating subsequent connection with screws.

[0036] In order to improve the versatility of parts, the first splint 7 and the second splint 18 have the same structure, and both have a slot 701 on the side. The rotating seat 6 and the movable seat 17 both have a clamping platform 601. The clamping platform 601 of the rotating seat 6 can be clamped into the slot 701 on the first splint 7, and the clamping platform 601 of the movable seat 17 can be clamped into the slot 701 on the second splint 18. After the first splint 7 and the second splint 18 are unfolded, they can automatically be clamped at the clamping platform 601 for limiting, thereby maintaining the position stability of the first splint 7 and the second splint 18.

[0037] The number of multi-stage rod groups is ≥1, which is divided into the following two cases:

[0038] (1) When the number of multi-stage rod groups is ≥2, each stage rod group is connected to the next stage rod group in a damped rotation manner, and the final stage rod group is connected to the rotating seat 6 in the clamping mechanism in a damped rotation manner through a rotating platform assembly, so that it can be easily unfolded to a desired position according to the needs of use. Each stage rod group has a storage space for accommodating the remaining subsequent rod groups and the clamping mechanism. In the multi-stage rod group, the rod group closer to the back has a smaller storage space. The storage space of the final stage rod group can accommodate the clamping mechanism, and the primary rod group can accommodate the remaining rod groups and the clamping mechanism in the inner storage space;

[0039] (2) When the number of multi-stage rod groups is equal to 1, it is a single-section rod group. The single-section rod group is connected to the rotating seat 6 in the clamping mechanism through a rotating table assembly for damping rotation, which is convenient for unfolding to the required position according to usage needs. The single-section rod group has a storage space for accommodating the clamping mechanism.

[0040] The number of rod groups of the multi-stage rod group is 1, 2, 3, 4, .... In addition, the multi-stage rod group can be omitted, and only the clamping mechanism can be used to clamp the electronic device, and the clamping mechanism can be fixed to other places by means of adhesion, magnetic attraction, or bolt connection.

[0041] When the bracket is not in use, the entire bracket can be folded up, and the overall space is small. The movable base 17 is connected to an outwardly extending pull rope 19. When the bracket is fully folded, the pull rope 19 is exposed, and the clamping mechanism can be pulled out from the inside of the storage space by pulling the pull rope, which is easy to operate.

[0042] The rotating table assembly includes a first rotating table 4 which is connected to the final rod group or the single-section rod group in a damped rotation manner, and a second rotating table 5 which is connected to the first rotating table 4 and the rotating seat 6 in a damped rotation manner respectively. The rotation center axis of the first rotating table 4 is perpendicular to the rotation center axis of the second rotating table 5, and the rotation center axis of the second rotating table 5 is perpendicular to the rotation center axis of the rotating seat 6. The rotating seat 6 can be adjusted in multiple directions with good flexibility, which can meet the user's needs for clamping electronic equipment in different directions.

[0043] In the drawings of this embodiment, the number of multi-stage rod groups is equal to two, including a primary rod group and a secondary rod group. The primary rod group includes two symmetrically distributed primary rods 1, and the secondary rod group includes two symmetrically distributed secondary rods 3. The secondary rods 3 are located inside the two primary rods 1 and can be stored in the storage space formed between the two primary rods 1. The ends of the secondary rods 3 are respectively connected to the primary rods 1 and the rotating platform assembly for damped rotation. The clamping mechanism can be stored in the storage space formed between the two secondary rods 3. Ultimately, both the secondary rods 3 and the clamping mechanism are stored in the storage space between the two primary rods 1.

[0044] like Figure 2 As shown, a connecting column 2 is provided between the two secondary rods 3, and the connecting column 2 is mounted on the damping rotation connection between the primary rod 1 and the secondary rod 3, so that the two primary rods 1 are symmetrically distributed and the two secondary rods 3 are symmetrically distributed, which can improve the deformation resistance of the entire rod group.

[0045] like Figure 1-Figure 3 As shown, the primary rod 1 has a damped rotation connection at its head end to a connection base 20, with a pillow 21 positioned at its base. This allows users to comfortably hold the pillow 21 while using the stand. The top of the pillow is made of wood, plastic, or other rigid flat surface, providing a flat surface for laptops and tablets. The wood or plastic can also be covered with a leather or fabric cover. The entire pillow disassembles via a zipper, allowing for easy cleaning after removing the inner core.

[0046] When in use, this embodiment unfolds the first and second plates 7, 18 to increase the clamping area and ensure stable clamping, enabling stable clamping of electronic devices such as mobile phones, tablets, and paper readers. When not in use, the first and second plates 7, 18 are folded and stored to reduce the overall size. This design takes into account both clamping stability and minimal storage space, allowing for adjustment based on demand, resulting in high flexibility and adaptability.

[0047] Example 2

[0048] like Figure 4-Figure 8As shown, the multi-stage folding bracket proposed in this embodiment differs from the first embodiment in that: the first end of the first rod 1 is connected to a clamping seat 22 with damped rotation, a clamping plate 23 is provided on the side of the clamping seat 22, the clamping seat 22 is provided with an internal thread, the clamping plate 23 is provided with a through hole, and the clamping seat 22 is threadedly connected to a bolt passing through the through hole via the internal thread. The clamping seat 22 and the clamping plate 23 can be clamped to the exposed metal rod on the upper part of the front seat of the car (or clamped to the plastic layer wrapped around the outer periphery of the metal rod) by bolts, making it convenient for rear passengers to clamp electronic devices on the bracket. When not in use, the entire bracket can be directly folded up and hidden between the headrest at the top of the seat and the seat body below, taking up little space. To enhance the stability of the clamping on the metal rod, a first clamping groove is provided on the side surface of the clamping seat 22 facing the clamping plate 23, and a second clamping groove is provided on the side surface of the clamping plate 23 facing the clamping seat 22, facing the first clamping groove. Clamping the metal rod between the first clamping groove and the second clamping groove can locate the clamping position and improve the clamping reliability.

[0049] In addition, the clamping seat 22 and the clamping plate 23 can also be clamped on a bed frame, desk, etc. through bolts, and the usage scenarios are flexible.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. The clamping mechanism is characterized in that: It includes a first clamping assembly, a second clamping assembly, and a tensioning assembly for tensioning and connecting the first clamping assembly and the second clamping assembly; The first clamping assembly comprises a rotating seat (6) and two symmetrically distributed first clamping plates (7) that can be unfolded and folded on the rotating seat (6); the second clamping assembly comprises a movable seat (17) and two symmetrically distributed second clamping plates (18) that can be unfolded and folded on the movable seat (17); when the two first clamping plates (7) are folded, they are arranged relative to each other; when the two second clamping plates (18) are folded, they are arranged relative to each other; when the two first clamping plates (7) and the two second clamping plates (18) are unfolded, the first clamping plates (7) abut against the rotating seat (6), and the second clamping plates (18) abut against the movable seat (17); the first clamping plates (7) and the second clamping plates (18) are arranged relative to each other and form a clamping space.

2. The clamping mechanism according to claim 1, characterized in that: The tensioning assembly comprises a telescopic cylinder (10) connected to a rotating seat (6) at one end, a top cover (12) arranged at the other end of the telescopic cylinder (10), a slide bar (13) slidably arranged on the top cover (12), a first connecting platform (14) and a second connecting platform (15) respectively connected to the two ends of the slide bar (13), a base frame (11) slidably arranged on the slide bar (13), and a spring (16) sleeved on the outer peripheral side of the slide bar (13) and connected to the base frame (11) and the top cover (12) at both ends respectively. The second connecting platform (15) is connected to the movable seat (17). The first clamping plate (7) is arranged on the rotating seat (6) through a mounting shaft (9) for damping rotation, and the second clamping plate (18) is arranged on the movable seat (17) for damping rotation through the mounting shaft (9).

3. The clamping mechanism according to claim 1, characterized in that: The first clamping plate (7) and the second clamping plate (18) have the same structure, and both sides have a card slot (701). The rotating seat (6) and the movable seat (17) both have a card platform portion (601). The card platform portion (601) of the rotating seat (6) can be clamped into the card slot (701) on the first clamping plate (7), and the card platform portion (601) of the movable seat (17) can be clamped into the card slot (701) on the second clamping plate (18).

4. Multi-stage folding bracket, characterized in that, The clamping mechanism comprises the clamping mechanism according to any one of claims 1 to 3, further comprising a multi-stage rod group, wherein the number of the multi-stage rod group is ≥1; When the number of multi-stage rod groups is ≥2, each stage rod group is connected to the next stage rod group in a damped rotation manner, and the final stage rod group is connected to the rotating seat (6) in the clamping mechanism in a damped rotation manner through a rotating table assembly, and each stage rod group has a storage space for accommodating the remaining next stage rod groups and the clamping mechanism; When the number of the multi-stage rod group is equal to 1, it is a single-section rod group, which is connected to the rotating seat (6) in the clamping mechanism through a rotating table assembly for damping rotation, and the single-section rod group has a storage space for accommodating the clamping mechanism.

5. The multi-stage folding bracket according to claim 4, characterized in that: The rotating table assembly comprises a first rotating table (4) connected to the final rod group or the single-section rod group in a damped rotation manner, and a second rotating table (5) connected to the first rotating table (4) and the rotating seat (6) in a damped rotation manner, wherein the rotation center axis of the first rotating table (4) is perpendicular to the rotation center axis of the second rotating table (5), and the rotation center axis of the second rotating table (5) is perpendicular to the rotation center axis of the rotating seat (6).

6. The multi-stage folding bracket according to claim 4, characterized in that: The number of the multi-stage rod groups is equal to 2, and the multi-stage rod groups include a primary rod group and a secondary rod group. The primary rod group includes two symmetrically distributed primary rods (1), and the secondary rod group includes two symmetrically distributed secondary rods (3). The secondary rods (3) are located inside the two primary rods (1), and the two ends of the secondary rods (3) are respectively connected to the primary rods (1) and the rotating platform assembly for damped rotation.

7. The multi-stage folding bracket according to claim 6, characterized in that: The first end of the first rod (1) is connected to a connecting seat (20) in a damping rotation manner, and a pillow (21) is provided at the bottom of the connecting seat (20).

8. The multi-stage folding bracket according to claim 6, characterized in that: The first end of the primary rod (1) is connected to a clamping seat (22) for damping rotation. A clamping plate (23) is provided on the side of the clamping seat (22). An internal thread is provided on the clamping seat (22). A through hole is provided on the clamping plate (23). The clamping seat (22) is threadedly connected to a bolt passing through the through hole via the internal thread.

9. The multi-stage folding bracket according to claim 8, characterized in that: A first clamping groove is provided on one side surface of the clamping seat (22) facing the clamping plate (23), and a second clamping groove is provided on one side surface of the clamping plate (23) facing the clamping seat (22) facing the first clamping groove.

10. The multi-stage folding bracket according to claim 4, characterized in that: The movable seat (17) is connected with an outwardly extending draw cord (19).

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