Rotary limiting structure with damping and arm device thereof

Abstract

The utility model relates to a support arm device technical field especially is a kind of rotary limiting structure and its support arm device with damping, it includes support arm connecting piece, support arm fixed axle, rotary damper and limit base, the lower end of support arm connecting piece is rotationally arranged on limit base, one side on limit base is provided with arc limiting block, the lower end of support arm fixed axle is stretched out from the lower end of support arm connecting piece and is connected with the upper end of rotary damper, the lower end of rotary damper is connected with limit base, the lower end of support arm connecting piece inner wall is provided with annular groove, arc limiting block is slidably arranged in annular groove, one side in annular groove is provided with the positioning block that cooperates with the abutment of arc limiting block.The utility model structure is novel, realizes resistance adjustment by rotary damper, rotary damper damping pivot provides hover function, stability is enhanced;Prevent rotary overtravel, avoid wire winding or pull damage risk;It is convenient to maintain, and modular assembly design reduces maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of outrigger device technology, and in particular to a damped rotation limiting structure and its outrigger device. Background Technology

[0002] Support arms have a wide range of applications in medical, office, and home fields. They are mainly used to fix and support various medical or display devices, providing flexible adjustment functions to ensure that users can easily adjust the position and angle of the device during operation.

[0003] Most similar support arms on the market can rotate 360°. There is no rotation limit angle for the user when operating them. When rotating, the cable connected to the display device will also rotate at the same time, which can easily cause the cable to be pulled wirelessly, resulting in poor contact of the device plug or damage to the cable. Summary of the Invention

[0004] This utility model addresses the problems of existing technologies by providing a damped rotation limiting structure and its support arm device. The structure is novel, and the resistance is adjusted through a rotation damper. The damper dampens the rotating shaft to provide a hovering function, which enhances stability. It prevents overtravel and avoids the risk of wire entanglement or pulling damage. It is easy to maintain, and the modular assembly design reduces maintenance costs.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides a damped rotation limiting structure, which includes a support arm connector, a support arm fixing shaft, a rotation damper, and a limiting base. The lower end of the support arm connector is rotatably mounted on the limiting base. An arc-shaped limiting block is provided on one side of the limiting base. An installation cavity is provided inside the support arm connector. The support arm fixing shaft is detachably installed in the installation cavity. The lower end of the support arm fixing shaft extends from the lower end of the support arm connector and connects to the upper end of the rotation damper. The lower end of the rotation damper is connected to the limiting base. An annular groove is provided on the inner wall of the lower end of the support arm connector. The arc-shaped limiting block is slidably disposed in the annular groove. A positioning block that abuts against the arc-shaped limiting block is provided on one side of the annular groove.

[0007] The limiting base is provided with a wear-resistant pad, and the lower end of the support arm connector slides against the wear-resistant pad.

[0008] The wear-resistant pad is a POM pad.

[0009] The arm fixing shaft has a locking recess on its exterior, a horizontal bottom wall inside the locking recess, a first connecting hole and a locking fastener on the arm connector, the locking fastener being installed in the first connecting hole and abutting against the horizontal bottom wall after passing through the first connecting hole.

[0010] Wherein, the first connecting hole is a screw hole, and the locking device is a screw.

[0011] This utility model also provides a support arm device using the aforementioned damped rotation limiting structure, which includes a support arm body, one end of which is connected to an equipment connection component, and the other end of which is movably connected to the support arm connector.

[0012] The outer wall of the support arm body is provided with a cable routing groove.

[0013] The wiring channel has multiple hollowed-out heat dissipation holes.

[0014] The beneficial effects of this utility model are:

[0015] This utility model features a novel structure and ingenious design. Resistance adjustment is achieved through a rotary damper, which provides a hovering function, allowing the outrigger body connected to the outrigger connector to remain stably stationary at any angle, enhancing stability. The arc-shaped limiting block of the limiting base slides into the annular groove of the outrigger connector, and the design of the positioning block further restricts rotation between the outrigger connector and the limiting base, preventing overtravel and mitigating the risk of wire entanglement or damage from pulling. The outrigger fixing shaft is detachably installed within the mounting cavity for easy maintenance, and the modular assembly design reduces maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a damped rotation limiting structure according to the present invention.

[0017] Figure 2 This is an exploded view of a damped rotation limiting structure according to the present invention.

[0018] Figure 3 This is a schematic diagram of the support arm connector of this utility model.

[0019] Figure 4 This is a schematic diagram of the support arm device of this utility model.

[0020] exist Figures 1 to 4 The reference numerals in the figures include:

[0021] 1. Support arm connector; 2. Support arm fixing shaft; 3. Rotation damper; 4. Limiting base; 5. Arc-shaped limiting block; 6. Mounting cavity; 7. Annular groove; 8. Positioning block; 9. Wear-resistant pad; 10. Locking recess; 11. Horizontal bottom wall; 12. First connecting hole; 13. Locking fastener; 14. Positioning cavity; 15. Support arm body; 16. Equipment connecting component; 17. Cable tray; 18. Hole-shaped heat dissipation hole. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] In Embodiment 1 of this application, as Figures 1 to 3 As shown, a damped rotation limiting structure includes an arm connector 1, an arm fixing shaft 2, a rotation damper 3, and a limiting base 4. The lower end of the arm connector 1 is rotatably mounted on the limiting base 4. An arc-shaped limiting block 5 is provided on one side of the limiting base 4. An installation cavity 6 is provided inside the arm connector 1. The arm fixing shaft 2 is detachably installed in the installation cavity 6. The lower end of the arm fixing shaft 2 extends from the lower end of the arm connector 1 and is connected to the upper end of the rotation damper 3. The lower end of the rotation damper 3 is connected to the limiting base 4. An annular groove 7 is provided on the inner wall of the lower end of the arm connector 1. The arc-shaped limiting block 5 is slidably disposed in the annular groove 7. A positioning block 8 is provided on one side of the annular groove 7 to abut against the arc-shaped limiting block 5. Specifically, this utility model features a novel structure and ingenious design. Resistance adjustment is achieved through a rotary damper 3, which provides a hovering function, allowing the main body 15 of the support arm connected to the support arm connector 1 to remain stably stationary at any angle, thus enhancing stability. The arc-shaped limiting block 5 of the limiting base 4 slides into the annular groove 7 of the support arm connector 1, and the design of the positioning block 8 further restricts rotation between the support arm connector 1 and the limiting base 4, preventing overtravel and mitigating the risk of wire entanglement or pulling damage. The support arm fixing shaft 2 is detachably installed within the mounting cavity 6 for easy maintenance, and the modular assembly design reduces maintenance costs.

[0025] In this embodiment, a wear-resistant pad 9 is provided on the limiting base 4, and the lower end of the support arm connector 1 slides against the wear-resistant pad 9. The wear-resistant pad 9 is a POM pad. Specifically, the POM wear-resistant pad 9 reduces frictional wear between the base and the support arm connector 1, thus extending its service life.

[0026] In this embodiment, a locking recess 10 is provided on the outside of the support arm fixing shaft 2, and a horizontal bottom wall 11 is provided inside the locking recess 10. The support arm connector 1 has a first connecting hole 12 and a locking fastener 13. The locking fastener 13 is installed in the first connecting hole 12 and abuts against the horizontal bottom wall 11 after passing through the first connecting hole 12. Specifically, the first connecting hole 12 is a screw hole, and the locking fastener 13 is a screw. The locking fastener 13 achieves axial fixation through the cooperation between the horizontal bottom wall 11 and the recess, preventing loosening.

[0027] In this embodiment of the application, the limiting base 4 is further provided with a positioning cavity 14, and the rotation damper 3 is positioned and installed in the positioning cavity 14 to ensure accurate installation and prevent loosening.

[0028] Example 2

[0029] In Embodiment 2 of this application, as Figure 4 As shown, a support arm device using the damped rotation limiting structure described above is provided, comprising a support arm body 15, one end of which is connected to an equipment connection component 16, and the other end of which is movably connected to the support arm connector 1. A wiring groove 17 is provided on the outer wall of the support arm body 15. Multiple perforated heat dissipation holes 18 are provided on the wiring groove 17. This utility model features a novel structure and ingenious design. The equipment connection component 16 at one end of the support arm body 15 can be connected to external equipment. The support arm connector 1 is connected to the other end of the support arm body 15. The support arm device achieves resistance adjustment through the rotary damper 3, which provides a hovering function, allowing the external equipment connected to the support arm body 15 to remain stably at any angle, thus enhancing stability. The arc-shaped limiting block 5 of the limiting base 4 slides in conjunction with the annular groove 7 of the support arm connector 1. Furthermore, the design of the positioning block 8 ensures that the rotation between the support arm connector 1 and the limiting base 4 is physically angle-limited, preventing overtravel and avoiding the risk of wire entanglement or pulling damage. The support arm fixing shaft 2 is detachably installed in the mounting cavity 6 for easy maintenance, and the modular assembly design reduces maintenance costs.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A damped rotation limiting structure, characterized in that: The device includes an arm connector, an arm fixing shaft, a rotation damper, and a limiting base. The lower end of the arm connector is rotatably mounted on the limiting base. An arc-shaped limiting block is provided on one side of the limiting base. The arm connector has an installation cavity. The arm fixing shaft is detachably installed in the installation cavity. The lower end of the arm fixing shaft extends from the lower end of the arm connector and connects to the upper end of the rotation damper. The lower end of the rotation damper is connected to the limiting base. An annular groove is provided on the inner wall of the lower end of the arm connector. The arc-shaped limiting block is slidably disposed in the annular groove. A positioning block that abuts against the arc-shaped limiting block is provided on one side of the annular groove.

2. The damped rotation limiting structure according to claim 1, characterized in that: The limiting base is provided with a wear-resistant pad, and the lower end of the support arm connector slides against the wear-resistant pad.

3. The damped rotation limiting structure according to claim 2, characterized in that: The wear-resistant pad is a POM pad.

4. The damped rotation limiting structure according to claim 1, characterized in that: The outer side of the support arm fixing shaft is provided with a locking recess, and a horizontal bottom wall is provided inside the locking recess. The support arm connector has a first connecting hole and a locking device. The locking device is installed in the first connecting hole and abuts against the horizontal bottom wall after passing through the first connecting hole.

5. The damped rotation limiting structure according to claim 4, characterized in that: The first connecting hole is a screw hole, and the locking device is a screw.

6. A support arm device using the damped rotation limiting structure according to any one of claims 1-5, characterized in that: It includes a support arm body, one end of which is connected to a device connection component, and the other end of which is movably connected to the support arm connector.

7. The outrigger device with damped rotation limiting structure according to claim 6, characterized in that: The outer wall of the support arm body is provided with a cable routing groove.

8. The outrigger device with damped rotation limiting structure according to claim 7, characterized in that: The wiring channel has multiple hollowed-out heat dissipation holes.

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