Arm support mechanism capable of horizontally and flexibly rotating by 360 degrees

Abstract

The utility model relates to the technical field of medical instruments, and discloses an arm support mechanism capable of horizontally and flexibly rotating by 360 degrees, which comprises an arm support connecting pin, a limiting frame is arranged at the bottom of the arm support connecting pin, the inside of the limiting frame is hollow, an arm support is arranged at the top of the arm support connecting pin, the arm support is in a circular arc shape and is provided with a grid, and the limiting frame is connected with the arm support connecting pin. The arm support mechanism comprises an arm support, a limiting frame is arranged on the arm support, a connecting column is arranged at the bottom of the limiting frame, a baffle is arranged at the bottom of the connecting column, the rotating assembly is installed in the arm support and used for enabling the arm support to rotate freely in the using process, and an arm support connecting pin gasket is arranged in the arm support. No matter what working posture or viewing angle the user is in, the arm can easily find a comfortable supporting point, in a multi-screen display working scene, the user does not need to rotate along with the viewing angle of the screen to enable the arm to lose support, the arm support can synchronously rotate and always fit the arm, and the comfort degree during long-time working is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an arm support mechanism that can rotate flexibly horizontally 360°. Background Technology

[0002] In modern office and various equipment operation scenarios, users have an increasing demand for comfortable and flexible support devices. Traditional armrest mechanisms can usually only be adjusted within a limited range of angles, which makes it difficult to meet the all-round support needs of users under different working postures and perspective changes. For example, in a multi-screen display work environment, users need to frequently turn their bodies to view different screen content. At this time, armrests with fixed angles or small range of adjustments cannot provide stable support in time with the body's rotation, which can easily lead to arm fatigue and soreness.

[0003] In addition, conventional armrests have limitations in structural design, poor rotational flexibility, and difficulty in achieving smooth 360° horizontal rotation. This greatly limits their application in scenarios that require flexible operation from multiple angles, such as virtual reality operation and complex mechanical control consoles. Therefore, developing an armrest mechanism that can rotate flexibly in a 360° horizontal direction is of great significance for improving user experience, increasing work efficiency, and adapting to diverse work scenarios.

[0004] Publication number: CN219579333U. This type of neurosurgical arm support can freely adjust its height, extension length, and rotation angle. It also has angle adjustment structures in multiple parts, thus possessing extremely high flexibility and stability. It combines the stability of a fixed arm support with the flexibility of a movable arm support, which can adapt to more and wider positional needs in actual use, providing doctors with greater comfort. In addition, each adjustment structure is equipped with a locking structure, which can prevent passive displacement during use and affect auxiliary stability.

[0005] To address the aforementioned issues, conventional armrests suffer from poor rotational flexibility during use, resulting in a subpar user experience. Therefore, we propose an armrest mechanism that can rotate flexibly horizontally 360°. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides an arm support mechanism that can rotate flexibly horizontally 360°, thus solving the above-mentioned problems.

[0007] To achieve the aforementioned objectives, this utility model provides the following technical solution: a 360° horizontally rotatable arm support mechanism, comprising an arm support connecting pin, a limiting frame at the bottom of the arm support connecting pin (the limiting frame being hollow inside), an arm support at the top of the arm support connecting pin (the arm support being arc-shaped and equipped with a mesh), a connecting post at the bottom of the limiting frame, and a baffle at the bottom of the connecting post, and further comprising:

[0008] The rotating component is installed inside the arm support, allowing the arm support to rotate freely during use. The arm support also has a connecting pin washer inside.

[0009] Preferably, a limiting frame is fixedly connected to the bottom of the arm support connecting pin, and a bolt is fixedly installed at the bottom of the limiting frame. A connecting column is fixedly connected to one side of the bottom of the limiting frame, and a baffle is fixedly connected to the outer bottom end of the connecting column.

[0010] Preferably, the outer surface of the baffle is rectangular, and mounting bases are fixedly installed on all four sides of the bottom of the baffle. A connecting shaft is rotatably connected inside the mounting base, and a base plate is rotatably connected to the bottom of the connecting shaft.

[0011] Preferably, the bottom of the connecting column is fitted with a fixing sleeve, and the outside of the fixing sleeve is circumferentially fixedly connected to a fixed hollow shaft. The inside of the fixed hollow shaft is hollow, and an alloy sheet is rotatably connected inside the fixed hollow shaft. The other end of the alloy sheet is rotatably connected to the outside of the connecting shaft.

[0012] Preferably, the rotating assembly includes an arm support connecting pin, an arm support connecting pin cylinder, an arm support, a knurled cylindrical pin, and an arm support connecting pin washer. The arm support is fixedly connected to the outside of the arm support, and the arm support connecting pin washer is fixedly connected to the outside of the arm support connecting pin cylinder. The outside of the arm support connecting pin washer is fixedly installed inside the arm support, and the inside of the arm support connecting pin cylinder is engaged with a knurled cylindrical pin. The top of the arm support connecting pin is fixedly installed inside the arm support.

[0013] Preferably, the arm support is externally fixedly connected between the arm support connecting pin cylinder and the arm support connecting pin by a partially embedded component arm support, and a U-shaped groove is provided at the corresponding position of the arm support connecting pin.

[0014] Compared with the prior art, this utility model provides an arm support mechanism that can rotate flexibly horizontally 360°, which has the following beneficial effects:

[0015] 1. A 360° horizontally flexibly rotating arm support mechanism is provided. This arm support mechanism can achieve 360° horizontal flexible rotation, so that the arm can easily find a comfortable support point no matter what working posture or viewing angle the user is in. In multi-screen display working scenarios, the user does not need to turn the body to follow the screen viewing angle and lose arm support. The arm support can rotate synchronously and always fit the arm, effectively avoiding fatigue and soreness caused by the arm being suspended in the air, and greatly improving the comfort during long-term work.

[0016] 2. This 360° horizontally rotatable arm support mechanism is ideal for operators who often need to quickly switch perspectives and operating directions when operating complex mechanical control consoles. The flexible rotation of this arm support mechanism allows the operator's arm to be effectively supported at any operating angle, improving operating accuracy and efficiency, reducing the risk of operational errors caused by arm fatigue, and thus optimizing the working environment in the industrial and mechanical control fields. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Fig. 2 This is a schematic diagram of the rotating component of this utility model;

[0019] Fig. 3 This is a schematic diagram of the fixing sleeve of this utility model.

[0020] In the diagram: 1. Arm support connecting pin; 2. Arm support connecting pin cylinder; 3. Arm support; 4. Knurled cylindrical pin; 5. Arm support connecting pin washer; 6. Baffle; 7. Limiting bracket; 8. Connecting column; 9. Alloy plate; 10. Fixing sleeve; 11. Mounting base; 12. Coupling; 13. Base plate; 14. Fixed hollow shaft. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figs. 1-3 A 360° horizontally rotatable arm support mechanism includes an arm support connecting pin 1, a limit frame 7 at the bottom of the arm support connecting pin 1 (the limit frame 7 is hollow), an arm support 3 at the top of the arm support connecting pin 1 (the arm support 3 is arc-shaped and has a mesh), a connecting post 8 at the bottom of the limit frame 7, and a baffle 6 at the bottom of the connecting post 8. The mechanism also includes:

[0023] A rotating component is installed inside the arm support 3, allowing the arm support to rotate freely during use. The arm support 3 also has an arm support connecting pin washer 5 inside.

[0024] Furthermore, the bottom of the arm support connecting pin 1 is fixedly connected to the limiting frame 7, and the bottom of the limiting frame 7 is fixedly installed with bolts. A connecting column 8 is fixedly connected to one side of the bottom of the limiting frame 7, and a baffle 6 is fixedly connected to the outer bottom end of the connecting column 8.

[0025] Furthermore, the outer surface of the baffle 6 is rectangular, and mounting bases 11 are fixedly installed on all four sides of the bottom of the baffle 6. The mounting base 11 is rotatably connected to the inside of the mounting shaft 12, and the bottom of the mounting shaft 12 is rotatably connected to the base plate 13.

[0026] Furthermore, a fixing sleeve 10 is fitted at the bottom of the connecting column 8, and a fixed hollow shaft 14 is fixedly connected to the outside of the fixing sleeve 10 in a circumferential manner. The inside of the fixed hollow shaft 14 is hollow, and an alloy sheet 9 is rotatably connected inside the fixed hollow shaft 14. The other end of the alloy sheet 9 is rotatably connected to the outside of the connecting shaft 12.

[0027] Furthermore, the rotating assembly includes an arm support connecting pin 1, an arm support connecting pin cylinder 2, an arm support 3, a knurled cylindrical pin 4, and an arm support connecting pin washer 5. The arm support 3 is externally fixedly connected to the arm support connecting pin cylinder 2, and the arm support connecting pin washer 5 is externally fixedly connected to the arm support connecting pin cylinder 2. The arm support connecting pin washer 5 is externally fixedly installed inside the arm support 3. The knurled cylindrical pin 4 is engaged inside the arm support connecting pin cylinder 2, and the top of the arm support connecting pin 1 is fixedly installed inside the arm support 3.

[0028] Furthermore, the arm support 3 is externally fixedly connected between the arm support connecting pin cylinder 2 and the arm support connecting pin 1 through a partially embedded component arm support, and a U-shaped groove is provided at the corresponding position of the arm support connecting pin 1.

[0029] Structural Description: Arm Support Connecting Pin 1 and Arm Support Connecting Pin Cylinder 2: The top of the arm support connecting pin 1 is firmly embedded inside the arm support 3, playing a key role as a rotating shaft. Its bottom is fixedly connected to the limiting bracket 7, ensuring that the rotating component is stably connected to the supporting structure below. The arm support connecting pin cylinder 2 is fixed to the outside of the arm support 3 and fits tightly with the arm support connecting pin 1. When the user rotates the arm support 3, the arm support connecting pin 1 can rotate 360° flexibly inside the arm support connecting pin cylinder 2, realizing the multi-angle adjustment function of the arm support.

[0030] Knurled cylindrical pin 4 and arm support connecting pin washer 5: The knurled cylindrical pin 4 is engaged inside the arm support connecting pin cylinder 2. It has a dual important function. On the one hand, it effectively limits the axial displacement of the arm support connecting pin 1, preventing up-and-down movement during rotation and ensuring rotational stability. On the other hand, its special knurled design reduces the friction between it and the arm support connecting pin cylinder 2, making the rotation of the arm support 3 smoother. The arm support connecting pin washer 5 is installed between the arm support connecting pin cylinder 2 and the arm support 3, which plays a role in buffering vibration and further stabilizing the structure, avoiding wear and loosening caused by frequent rotation during long-term use, and extending the service life of the mechanism.

[0031] Limiting frame 7 and connecting column 8: The limiting frame 7 is tightly fixed to the bottom of the arm support connecting pin 1 by bolts. It not only limits and protects the rotating components to prevent damage caused by excessive rotation, but also provides a stable and reliable foundation for the connecting structure below. The connecting column 8 is fixed to one side of the bottom of the limiting frame 7 and extends vertically downward. Its bottom is connected to the baffle 6, which together with the limiting frame 7 forms a stable support frame to ensure that the arm support can maintain balance and stability when bearing the weight of the arm. Baffle 6, mounting base 11, connecting shaft 12 and base plate 13: The baffle 6 is rectangular in shape. Mounting bases 11 are installed on all four sides of its bottom. The mounting base 11 is rotatably connected to the connecting shaft 12. The bottom of the connecting shaft 12 is then rotatably connected to the base plate 13. This structural design allows the entire arm support mechanism to have a certain degree of freedom of movement in the horizontal direction, which can better adapt to different user postures and complex and changing work scenarios. When the user rotates their body or arm, the supporting structure below can adaptively adjust accordingly, always providing stable support for the arm support 3 and ensuring user comfort and convenience.

[0032] The U-shaped groove of the arm support connecting pin 1: The U-shaped groove is carefully opened at the corresponding position of the arm support connecting pin 1. The U-shaped groove plays an important synergistic role in the rotation of the arm support. It works with other components to further optimize the smoothness and stability of the rotation. For example, when rotating to a specific angle, the edge of the U-shaped groove can form a limiting fit with other structures to ensure the accurate positioning of the arm support at that angle and prevent accidental slippage or displacement.

[0033] Fixed sleeve 10, fixed hollow shaft 14 and alloy plate 9: Fixed sleeve 10 is fitted at the bottom of connecting column 8. Fixed hollow shaft 14 is fixedly connected to the outer circumference of fixed sleeve 10. Fixed hollow shaft 14 is hollow inside and rotatably connected to alloy plate 9. The other end of alloy plate 9 is rotatably connected to the outside of connecting shaft 12. When the arm support 3 rotates to the angle required by the user, these structures work together to maintain the stability of the arm support at that angle through friction and mechanical limiting. Even if the arm applies uneven force on the arm support or is slightly disturbed by the outside, the arm support will not easily rotate unexpectedly, providing the user with a reliable and stable support angle and meeting the user's needs for fixing the arm support angle under different working conditions.

[0034] Instructions for use

[0035] When the user applies force to the arm support, the arm support connecting pin 1, arm support connecting pin cylinder 2, knurled cylindrical pin 4, and arm support connecting pin washer 5 constitute the arm support 3. The arm support connecting pin cylinder 2 is externally fixed to the arm support 3. The arm support connecting pin washer 5 is installed between the arm support connecting pin cylinder 2 and the arm support 3, playing a buffering and stabilizing role. When the user applies force to rotate the arm support 3, the arm support connecting pin 1 rotates around its own axis within the arm support connecting pin cylinder 2. The knurled cylindrical pin 4 is engaged inside the arm support connecting pin cylinder 2, limiting the axial displacement of the arm support connecting pin 1 to ensure stable rotation, and reducing friction during rotation, allowing the arm support 3 to smoothly rotate 360° horizontally. The limiting frame 7 is fixed to the bottom of the arm support connecting pin 1 by bolts, playing a limiting and protective role for the rotating component, and providing a stable foundation for the connecting structure below. The connecting column 8 is fixed to one side of the bottom of the limiting frame 7, and its bottom is connected to the baffle 6, forming a stable support. The structure features a baffle 6 that is rotatably connected to the base plate 13 via a mounting base 11 and a connecting shaft 12. This allows the entire arm support mechanism to have a certain amount of horizontal mobility, enabling it to better adapt to different usage scenarios and user movements. When a user places their arm on the arm support 3 and rotates their body or arm, the arm support 3 rotates flexibly via a rotating component. The connecting structure below can adaptively adjust within a certain range, ensuring that the arm support always provides stable support for the arm. During use, the user can rotate the arm support 3 to a suitable angle according to their needs. The U-shaped groove opened at the corresponding position of the arm support connecting pin 1, along with the fixing sleeve 10, the fixing hollow shaft 14, and the internal rotating alloy plate 9, all work together with the connecting shaft 12. When the arm support 3 rotates, the structures work together to maintain the stability of the arm support at that angle, preventing accidental rotation of the arm support due to uneven arm force or other external interference, thus providing the user with a reliable support angle.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 360° horizontally rotatable arm support mechanism, comprising an arm support connecting pin (1), wherein a limiting frame (7) is provided at the bottom of the arm support connecting pin (1), and the limiting frame (7) is hollow inside; an arm support (3) is provided at the top of the arm support connecting pin (1), and the arm support (3) is arc-shaped and has a mesh installed; a connecting post (8) is provided at the bottom of the limiting frame (7), and a baffle (6) is provided at the bottom of the connecting post (8); characterized in that: Also includes: A rotating component is installed inside the arm support (3) so that the arm support can rotate freely during use, and an arm support connecting pin washer (5) is provided inside the arm support (3).

2. The arm support mechanism capable of 360° horizontal flexible rotation according to claim 1, characterized in that: The bottom of the arm support connecting pin (1) is fixedly connected to a limiting frame (7), and the bottom of the limiting frame (7) is fixedly installed with bolts. A connecting column (8) is fixedly connected to one side of the bottom of the limiting frame (7), and a baffle (6) is fixedly connected to the outer bottom end of the connecting column (8).

3. The arm support mechanism capable of 360° horizontal flexible rotation according to claim 1, characterized in that: The baffle (6) is rectangular in shape, and mounting bases (11) are fixedly installed on all four sides of the bottom of the baffle (6). A connecting shaft (12) is rotatably connected inside the mounting base (11), and a base plate (13) is rotatably connected to the bottom of the connecting shaft (12).

4. The arm support mechanism capable of 360° horizontal flexible rotation according to claim 3, characterized in that: The bottom of the connecting column (8) is fitted with a fixing sleeve (10), and the outside of the fixing sleeve (10) is circumferentially fixedly connected to a fixed hollow shaft (14). The inside of the fixed hollow shaft (14) is hollow, and an alloy sheet (9) is rotatably connected inside the fixed hollow shaft (14). The other end of the alloy sheet (9) is rotatably connected to the outside of the connecting shaft (12).

5. The arm support mechanism capable of 360° horizontal flexible rotation according to claim 1, characterized in that: The rotating assembly includes an arm support connecting pin (1), an arm support connecting pin cylinder (2), an arm support (3), a knurled cylindrical pin (4), and an arm support connecting pin washer (5). The arm support (3) is fixedly connected to the outside of the arm support connecting pin cylinder (2), and the arm support connecting pin washer (5) is fixedly connected to the outside of the arm support connecting pin cylinder (2). The outside of the arm support connecting pin washer (5) is fixedly installed inside the arm support (3). The inside of the arm support connecting pin cylinder (2) is engaged with the knurled cylindrical pin (4), and the top of the arm support connecting pin (1) is fixedly installed inside the arm support (3).

6. The arm support mechanism capable of 360° horizontal flexible rotation according to claim 5, characterized in that: The arm support (3) is fixedly connected to the arm support connecting pin cylinder (2) and the arm support connecting pin (1) through a partially embedded arm support component, and a U-shaped groove is provided at the corresponding position of the arm support connecting pin (1).

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