A combined support stand for a handset

Abstract

The utility model discloses a combined support frame for handset relates to support frame field, the utility model discloses a base is inside being provided with cavity, the top of base is installed with damping telescopic link. The utility model discloses through being provided with first internal thread ring, lift ring, connecting rod, piston and cavity, when needing to use the suction cup to fix the support frame, can rotate second internal thread ring first, make second internal thread ring go up, then the suction cup of base bottom is pasted on target desktop, ensure that the suction cup and the desktop have no gap, then clockwise rotate first internal thread ring, and first internal thread ring drives lift ring to go up simultaneously through the sliding ring, and lift ring goes up in the cavity through connecting rod and draws piston, and the bigger low pressure area is formed in the cavity below piston, because the cavity is communicated with the suction cup inside, and this low pressure will continue and take away the air remaining between the suction cup and the desktop, thereby forming the powerful vacuum negative pressure in the suction cup inside, makes it firmly adsorbed on the desktop.

Description

Technical Field

[0001] This utility model relates to the field of support frames, specifically a combined support frame for handheld devices. Background Technology

[0002] Handheld device support stands are specifically designed to stably support and secure handheld devices (such as mobile phones) in various scenarios. Their core purpose is to free the user's hands while providing the best viewing and operating angles for handheld devices (such as mobile phones), improving work efficiency, reducing fatigue, and protecting device safety.

[0003] Existing handheld phone stands, some of which have suction cups at the bottom to fix the stand to the table, prevent the stand from tipping over or moving during use. However, when using the suction cup, it is usually necessary to manually press the suction cup to expel air, and to release it, the edge of the suction cup must be pried open to break the seal. The operation is relatively laborious and inconvenient, which reduces the efficiency of fixing and disassembling the stand. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a combined support frame for handheld devices to solve the technical problem that the operation process of fixing or removing the support frame by suction cup is relatively laborious and inconvenient.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined support frame for a handheld device, comprising a base, the base having an internal cavity, a damping telescopic rod mounted on the top of the base, and a lifting seat mounted on the top of the damping telescopic rod, a rotating seat rotatably connected to the lifting seat via a damping shaft, a placement frame mounted on the top of the rotating seat, an external threaded cylinder mounted on the lower outer wall of the damping telescopic rod, a first internal threaded ring threadedly connected to the outer wall of the external threaded cylinder, and a lifting ring also sleeved on the outer wall of the external threaded cylinder, connecting rods penetrating into the cavity are mounted around the bottom of the lifting ring, and a piston is mounted at the bottom end of the connecting rod, a sealing ring is provided on the outer wall of the piston, an annular groove is provided on the top of the lifting ring, and a slip ring is provided inside the annular groove.

[0006] By adopting the above technical solution, when the first internal threaded ring moves, it can drive the lifting ring to move, which in turn drives the connecting rod to move, and then drives the piston to move, so as to realize the lifting and lowering of the piston.

[0007] Furthermore, the slip ring is slidably connected to the annular groove, and the top of the slip ring is fixedly connected to the bottom of the first internal threaded ring.

[0008] By adopting the above technical solution, when the first internal threaded ring rotates, it can drive the slip ring to slide inside the annular groove, thereby preventing the lifting ring from rotating when the first internal threaded ring rotates, and preventing the piston from tilting.

[0009] Furthermore, the outer wall of the sealing ring is fitted to the inner wall of the cavity, and the sealing ring is made of silicone rubber or nitrile rubber.

[0010] By adopting the above technical solution, the sealing performance at the piston-cavity contact point is improved, preventing gas below the piston from flowing upward through the gap between the piston and the cavity.

[0011] Furthermore, grooves are provided on both sides of the interior of the placement rack, and a movable block is provided at the bottom of the interior of the groove. A spring is installed between the top of the movable block and the top of the interior of the groove, and a pull rod extending through to the outside of the placement rack is also installed on the top of the movable block.

[0012] By adopting the above technical solution, the spring provides elastic tension, which drives the pull rod and the clamping plate to clamp the handheld device through the movable block, thus adapting to equipment of different sizes.

[0013] Furthermore, a card plate is installed at the top of the pull rod, and both the bottom of the card plate and the top of the placement rack are provided with anti-slip pads made of silicone rubber.

[0014] By adopting the above technical solutions, the anti-slip pad increases friction and prevents the equipment from sliding; and the soft silicone rubber material prevents scratches on the equipment casing when clamped.

[0015] Furthermore, both the placement frame and the rotating seat are rotatably connected to the lifting seat via a damping rotating shaft.

[0016] By adopting the above technical solution, the placement rack and the swivel can be rotated via a damping shaft to adjust the tilt angle of the placement rack.

[0017] Furthermore, a suction cup is installed at the bottom of the base, and the top opening of the suction cup is connected to the cavity.

[0018] By adopting the above technical solution, the suction cup directly contacts the desktop, and the negative pressure in the cavity is transmitted through the suction cup to achieve a stable fixation of the support frame.

[0019] Furthermore, the outer wall of the base is provided with threads, and a second internal threaded ring is threadedly connected to the outer wall of the base. The outer wall of the second internal threaded ring is provided with anti-slip protrusions.

[0020] By adopting the above technical solution, when the suction cup is not needed, the user can rotate the second internal threaded ring to make its bottom fit against the table so that the second internal threaded ring can play a supporting role.

[0021] Furthermore, the top of the base is provided with an air hole, which is connected to the cavity, and a dustproof net is installed inside the air hole.

[0022] By adopting the above technical solution, the air vents are designed to keep the air pressure in the space above the piston balanced with the external air pressure, and the dustproof net can prevent dust from entering the cavity.

[0023] Furthermore, the outer wall of the piston fits against the inner wall of the cavity, and the piston is slidably connected to the cavity.

[0024] By adopting the above technical solution, the piston can be moved inside the cavity in order to adjust the position of the piston.

[0025] In summary, the present invention has the following main advantages: 1. This utility model, by comprising a first internal threaded ring, a lifting ring, a connecting rod, a piston, and a cavity, allows for the use of a suction cup to fix the support frame. First, the second internal threaded ring is rotated, causing it to move upwards. Then, the suction cup at the bottom of the base is placed against the target tabletop, ensuring no gap between the suction cup and the tabletop. Next, the first internal threaded ring is rotated clockwise. Because the first internal threaded ring is threadedly connected to the external threaded cylinder, it moves upwards along the external threaded cylinder during rotation. The first internal threaded ring, through a slip ring, drives the lifting ring to move upwards synchronously. The lifting ring, through the connecting rod, pulls the piston upwards within the cavity, creating a larger low-pressure area in the cavity below the piston. Because the cavity is connected to the inside of the suction cup, this low pressure will continuously draw away the air remaining between the suction cup and the table, thereby creating a strong vacuum negative pressure inside the suction cup, which makes it firmly adhere to the table. When you want to remove the support frame, simply reverse the first internal thread ring, then move the lifting ring down, and push the pull rod down. The piston moves down, pushing the air in the cavity back and forcibly injecting it into the suction cup. This makes the air pressure inside and outside the suction cup quickly equalize, the vacuum state is broken, and the suction cup can be easily removed. This method avoids the fatigue and deformation of the silicone material caused by frequently prying the edge of the suction cup, extends the product life, and the operation process is simple and convenient. 2. This utility model is equipped with a sealing ring, which ensures the airtightness of the cavity and maintains stable negative pressure. With the addition of an annular groove and a sliding ring, when the first internal threaded ring rotates, it can drive the sliding ring to slide inside the annular groove. Furthermore, the rotation of the first internal threaded ring will cause displacement, which can synchronously drive the lifting ring to move, making it convenient to adjust the position of the lifting ring. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall back structure of this utility model; Figure 3 This is a schematic diagram of the base structure of this utility model; Figure 4 This is a schematic diagram of the overall orthographic structure of this utility model; Figure 5 This is a schematic diagram of the overall bottom view of the present invention; Figure 6 This is a schematic diagram of the piston structure of this utility model; Figure 7 This is a bottom view schematic diagram of the card plate structure of this utility model; Figure 8 For the present utility model Figure 4 A magnified structural diagram of point A in the middle.

[0027] In the diagram: 1. Base; 2. Damping telescopic rod; 3. Lifting seat; 4. Damping shaft; 5. Rotary seat; 6. Placement rack; 7. Suction cup; 8. Clamping plate; 9. Groove; 10. Spring; 11. Movable block; 12. Pull rod; 13. Anti-slip pad; 14. External threaded cylinder; 15. First internal threaded ring; 16. Second internal threaded ring; 17. Lifting ring; 18. Annular groove; 19. Slip ring; 20. Connecting rod; 21. Piston; 22. Sealing ring; 23. Cavity; 24. Air hole. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of this utility model will be described below based on its overall structure.

[0030] Example 1: A modular support frame for handheld devices, such as Figures 1-8 As shown, the system includes a base 1 with an internal cavity 23. A damping telescopic rod 2 is mounted on the top of the base 1, and a lifting seat 3 is mounted on the top of the damping telescopic rod 2. A rotating seat 5 is rotatably connected to the lifting seat 3 via a damping shaft 4. A placement rack 6 is mounted on the top of the rotating seat 5. The placement rack 6 is designed for placing handheld devices (such as mobile phones). Both the placement rack 6 and the rotating seat 5 are rotatably connected to the lifting seat 3 via the damping shaft 4. The placement rack 6 and the rotating seat 5 can be rotated via the damping shaft 4 to adjust the tilt angle of the placement rack 6. A suction cup 7 is mounted on the bottom of the base 1. The suction cup 7 can be a bowl-shaped silicone suction cup. The top opening of the suction cup 7 is connected to the cavity 23. The suction cup 7 directly contacts the tabletop, and the negative pressure in the cavity 23 is transmitted through the suction cup 7 to achieve a stable fixation of the support frame.

[0031] See Figures 1-5The outer wall of the base 1 is threaded, and a second internal threaded ring 16 is threadedly connected to the outer wall of the base 1. The outer wall of the second internal threaded ring 16 is provided with anti-slip protrusions. When the suction cup 7 is not needed, the user can rotate the second internal threaded ring 16 so that its bottom is in contact with the table so that the second internal threaded ring 16 can play a supporting role. The top of the base 1 is provided with an air hole 24, and the air hole 24 is connected to the cavity 23. A dustproof net is installed inside the air hole 24. The air hole 24 is set so that the air pressure in the space above the piston 21 is balanced with the external air pressure, and the dustproof net can prevent dust from entering the cavity 23. The outer wall of the piston 21 is in contact with the inner wall of the cavity 23. The piston 21 and the cavity 23 are slidably connected, so that the piston 21 can move inside the cavity 23 to adjust the position of the piston 21.

[0032] See Figures 1-6 A threaded cylinder 14 is installed on the lower part of the outer wall of the damping telescopic rod 2. A first internal threaded ring 15 is threadedly connected to the outer wall of the threaded cylinder 14. A lifting ring 17 is also fitted onto the outer wall of the threaded cylinder 14. Anti-slip protrusions are provided on the outer wall of the first internal threaded ring 15 to facilitate rotation. The lifting ring 17 is movably connected to the threaded cylinder 14, allowing it to move outside the threaded cylinder 14. Connecting rods 20, penetrating into the cavity 23, are installed around the bottom of the lifting ring 17. A piston 21 is installed at the bottom end of the connecting rod 20, and a sealing ring 22 is provided on the outer wall of the piston 21. The top of the descending ring 17 is provided with an annular groove 18, and a sliding ring 19 is provided inside the annular groove 18. When the first internal threaded ring 15 moves, it can drive the rising ring 17 to move. The rising ring 17 then drives the connecting rod 20 to move, and then drives the piston 21 to move, so as to realize the lifting and lowering of the piston 21. The sliding ring 19 is slidably connected to the annular groove 18, and the top of the sliding ring 19 is fixedly connected to the bottom of the first internal threaded ring 15. When the first internal threaded ring 15 rotates, it can drive the sliding ring 19 to slide inside the annular groove 18, thereby preventing the rising ring 17 from rotating when the first internal threaded ring 15 rotates, and preventing the piston 21 from tilting.

[0033] Example 2: Based on the above embodiment 1, in order to improve the sealing performance between piston 21 and cavity 23, the sealing ring 22 will be made of the following materials.

[0034] Specifically, the outer wall of the sealing ring 22 fits against the inner wall of the cavity 23. The sealing ring 22 is made of silicone rubber or nitrile rubber to improve the sealing performance at the fit between the piston 21 and the cavity 23 and prevent gas below the piston 21 from flowing upward through the gap between the piston 21 and the cavity 23.

[0035] Example 3: Based on the above embodiment 1, in order to improve the stability of the handheld device (such as a mobile phone) placed on the placement rack 6, the following structure will be set.

[0036] Specifically, the placement rack 6 has grooves 9 on both sides inside. A movable block 11 is set at the bottom of the groove 9. A spring 10 is installed between the top of the movable block 11 and the top of the groove 9. A pull rod 12 extending through to the outside of the placement rack 6 is also installed on the top of the movable block 11. The movable block 11 is slidably connected to the groove 9. The spring 10 is made of carbon spring steel (65Mn or manganese steel). The surface of the spring 10 can be electroplated with white zinc or electrophoretic black. The spring 10 provides elastic tension. The movable block 11 drives the pull rod 12 and the clamping plate 8 to clamp the handheld device, which can be adapted to different sizes of equipment. The top of the pull rod 12 is equipped with a clamping plate 8. The bottom of the clamping plate 8 and the top of the placement rack 6 are equipped with anti-slip pads 13 made of silicone rubber. The anti-slip pads 13 increase friction and prevent the equipment from sliding. The silicone rubber material is soft and prevents the equipment shell from being scratched when clamping.

[0037] The working principle of this utility model is as follows: First, when the support frame needs to be used and needs to be fixed by the suction cup 7, the user can first rotate the second internal thread ring 16 so that the second internal thread ring 16 moves upward. Then, the suction cup 7 at the bottom of the base 1 is attached to the target table, ensuring that there is no gap between the suction cup and the table. Then, the first internal thread ring 15 is rotated clockwise. Since the first internal thread ring 15 is threadedly connected to the external thread cylinder 14, it moves upward along the external thread cylinder 14 when rotating. The first internal thread ring 15 drives the lifting ring 17 to move upward synchronously through the slip ring 19. The lifting ring pulls the piston 21 upward in the cavity 23 through the connecting rod 20. A larger low-pressure area is formed in the cavity 23 below the piston 21. Since the cavity 23 is connected to the inside of the suction cup 7, this low pressure will continuously draw away the air remaining between the suction cup 7 and the table, thereby forming a strong vacuum negative pressure inside the suction cup 7, which makes it firmly adsorbed on the table. The sealing ring 22 ensures the airtightness of the cavity 23 below the piston 21, so that the negative pressure is maintained stably. Then, place the handheld device (such as a mobile phone) on the placement rack 6. While placing the device, the user pulls the locking plate 8 with one hand, which moves the movable block 11 upward in the groove 9 via the pull rod 12, compressing the spring 10. Then, place the handheld device on top of the placement rack 6 and release the locking plate 8. The spring 10 rebounds, pushing the movable block 11 and the pull rod 12 downward. The locking plate 8 presses against the edge of the device, while the anti-slip pad 13 increases friction to prevent the device from sliding and avoids hard contact scratches. When the height of the mounting bracket 6 needs to be adjusted, the user can directly stretch or compress the damping telescopic rod 2. Due to its damping characteristics, the mounting bracket 6 can be adjusted to the target height. After releasing the rod, the damping force counteracts the weight of the equipment, and the mounting bracket 6 is stably suspended. When the angle of the mounting bracket 6 needs to be adjusted, the user can push the rotating base 5, which rotates through the damping rotating shaft 4, thereby rotating the mounting bracket 6 to adjust the angle of the mounting bracket 6, and thus adjust the angle of the handheld device (such as a mobile phone). When the handheld device needs to be removed, the user can pull the locking plate 8 upward to compress the spring 10 and remove the handheld device. To remove the support frame, simply reverse the first internal threaded ring, then move the lifting ring down, and push the pull rod downward. The piston moves downward, pushing the air in the cavity back and forcibly injecting it into the suction cup. This causes the air pressure inside and outside the suction cup to quickly balance, the vacuum state is broken, and the suction cup can be easily removed. To remove the support frame, simply reverse the first internal threaded ring 15, then move the lifting ring 17 down, and push the pull rod 12 down. The piston 21 moves down, pushing the air in the cavity 23 below the piston 21 back and forcibly injecting it into the suction cup 7. This allows the air pressure inside and outside the suction cup 7 to quickly balance, breaking the vacuum state, and the suction cup 7 can be easily removed, avoiding fatigue and deformation of the silicone material caused by frequently prying the edge of the suction cup 7.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A combined support frame for a handheld device, comprising a base (1), characterized in that: The base (1) has a cavity (23) inside. A damping telescopic rod (2) is installed on the top of the base (1), and a lifting seat (3) is installed on the top of the damping telescopic rod (2). A rotating seat (5) is rotatably connected to the lifting seat (3) via a damping rotating shaft (4). A placement rack (6) is installed on the top of the rotating seat (5). An external threaded cylinder (14) is installed below the outer wall of the damping telescopic rod (2), and a first internal threaded ring (15) is threadedly connected to the outer wall of the external threaded cylinder (14). A lifting ring (17) is also fitted on the outer wall of the external threaded cylinder (14). A connecting rod (20) is installed around the bottom of the lifting ring (17) and penetrates into the cavity (23). A piston (21) is installed at the bottom end of the connecting rod (20). A sealing ring (22) is provided on the outer wall of the piston (21). An annular groove (18) is opened on the top of the lifting ring (17), and a slip ring (19) is provided inside the annular groove (18).

2. The combined support frame for a handheld device according to claim 1, characterized in that: The slip ring (19) is slidably connected to the annular groove (18), and the top of the slip ring (19) is fixedly connected to the bottom of the first internal threaded ring (15).

3. A combined support frame for a handheld device according to claim 1, characterized in that: The outer wall of the sealing ring (22) is fitted with the inner wall of the cavity (23), and the sealing ring (22) is made of silicone rubber or nitrile rubber.

4. A combined support frame for a handheld device according to claim 1, characterized in that: The placement rack (6) has grooves (9) on both sides inside. A movable block (11) is provided at the bottom inside the groove (9). A spring (10) is installed between the top of the movable block (11) and the top inside the groove (9). A pull rod (12) that extends through to the outside of the placement rack (6) is also installed on the top of the movable block (11).

5. A combined support frame for a handheld device according to claim 4, characterized in that: The top of the pull rod (12) is equipped with a card plate (8), and the bottom of the card plate (8) and the top of the placement rack (6) are provided with anti-slip pads (13) made of silicone rubber.

6. A combined support frame for a handheld device according to claim 1, characterized in that: The placement frame (6) and the rotating seat (5) are rotatably connected to the lifting seat (3) via a damping rotating shaft (4).

7. A combined support frame for a handheld device according to claim 1, characterized in that: The bottom of the base (1) is equipped with a suction cup (7), and the top opening of the suction cup (7) is connected to the cavity (23).

8. A combined support frame for a handheld device according to claim 1, characterized in that: The outer wall of the base (1) is provided with threads, and the outer wall of the base (1) is threaded with a second internal thread ring (16), and the outer wall of the second internal thread ring (16) is provided with anti-slip protrusions.

9. A combined support frame for a handheld device according to claim 1, characterized in that: The base (1) has an air hole (24) on its top, and the air hole (24) is connected to the cavity (23), and a dustproof net is installed inside the air hole (24).

10. A combined support frame for a handheld device according to claim 1, characterized in that: The outer wall of the piston (21) is in contact with the inner wall of the cavity (23), and the piston (21) and the cavity (23) are slidably connected.

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