A damping sleeve structure

Abstract

The utility model relates to a kind of damping sleeve structures, including metal shell, damping sleeve, motor and the linkage for transmission connection motor and damping sleeve, the linkage includes with the fixed connection of main support pivot, the damping sleeve is set in pivot outer, several clamping spring pieces are provided on the damping sleeve, the outer wall of the damping sleeve is provided with multiple support columns for clamping spring piece.Using the above technical solution, the utility model can flexibly change the friction torque of rotating shaft by the relative position adjustment of clamping spring and damping sleeve, so as to realize the accurate control to screen flipping speed and opening resistance.User or manufacturer can flexibly set damping strength according to the actual working condition of display screen weight, opening frequency, installation angle etc., suitable for a variety of sizes and types of ceiling display system, damping sleeve and clamping spring are integrated in flipping shaft assembly, overall structure is compact, small space occupation, convenient and integrated with ceiling screen body.

Description

Technical Field

[0001] This utility model relates to the automotive field, and in particular to a damping sleeve structure. Background Technology

[0002] With the development of intelligent vehicles, airplanes, high-speed trains, and high-end office systems, ceiling-mounted hidden displays are gradually becoming standard equipment in multimedia systems. These devices typically unfold from a hidden compartment at the top by flipping or rotating, providing visual information or interactive functions. To achieve stable flipping and smooth unfolding of the ceiling-mounted screen, the flipping mechanism needs to have excellent drive force control and damping buffer performance.

[0003] Existing ceiling-mounted screen flipping mechanisms mainly adopt fixed damping structures, such as rubber dampers or single friction sleeves, with fixed damping values ​​that cannot be adjusted according to different screen sizes or user needs.

[0004] Hydraulic or pneumatic dampers: Although they can achieve stable control, they are complex in structure, large in size, not conducive to lightweight and thin design, and have high cost. However, the above methods cannot accurately control the flipping speed for different application needs; they are not conducive to the layout of ceiling space and system integration; they have many structural parts, making it difficult to standardize and mass-produce them, and their service life is limited.

[0005] Therefore, there is an urgent need for a damping adjustment scheme that is simple in structure, easy to adjust, moderate in cost, and has good stability, which can not only meet the resistance control requirements of ceiling screen flipping, but also adapt to various installation environments and user preferences. Summary of the Invention

[0006] The purpose of this utility model is to overcome the defects of the prior art by providing a damping sleeve structure, which solves the problem that the damping sleeve is not thin enough, which makes it impossible to accurately control the flip speed of the ceiling screen and is not conducive to the arrangement of the ceiling space.

[0007] The technical solution of this utility model is as follows: A damping sleeve structure includes a metal shell, a damping sleeve, a motor, and a linkage component for driving and connecting the motor and the damping sleeve. The linkage component includes a rotating shaft fixedly connected to the main support. The damping sleeve is sleeved outside the rotating shaft. A plurality of snap rings are provided on the damping sleeve. The metal shell includes a main support, and the main support is fixedly connected to the linkage component.

[0008] Preferably, the outer wall of the damping sleeve is provided with a plurality of support posts for engaging the spring clips.

[0009] Preferably, the linkage includes a first gear that rotatably engages with the rotating shaft, a second gear that meshes with the first gear, a third gear that rotates coaxially with the second gear, a fourth gear that meshes with the third gear, and a first worm gear that rotates coaxially with the fourth gear.

[0010] Preferably, the linkage further includes a first worm gear that rotates with the first worm wheel, a second worm wheel that rotates coaxially with the first worm gear, and a second worm gear that rotates with the second worm wheel.

[0011] Preferably, the second worm rotates coaxially with the motor.

[0012] The beneficial effects of this utility model are:

[0013] 1. This structure allows for flexible adjustment of the friction torque of the rotating shaft by adjusting the relative position of the retaining ring and the damping sleeve, thereby achieving precise control over the screen flipping speed and opening resistance. Users or manufacturers can flexibly set the damping intensity according to actual working conditions such as the weight of the display screen, opening and closing frequency, and installation angle, making it suitable for various sizes and types of ceiling-mounted display systems;

[0014] 2. The damping sleeve and circlip are integrated into the flip shaft assembly, resulting in a compact overall structure with a small footprint. This facilitates integration with the ceiling-mounted screen body and makes it widely applicable to scenarios with strict installation space requirements, such as vehicle-mounted ceiling-mounted screens, passenger aircraft / high-speed rail entertainment terminals, and hidden screens in conference systems.

[0015] 3. Damping adjustment is achieved by using a snap ring, which eliminates the need for complex tools or lubrication components. Pre-tightening and disassembly can be completed simply by adjusting the snap ring, greatly improving assembly efficiency and maintenance convenience, and reducing production and after-sales costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a specific embodiment of the present utility model.

[0018] In the diagram: 1. Metal casing; 11. Main support; 2. Damping sleeve; 21. Snap ring; 3. Linkage component; 31. Rotating shaft; 32. First gear; 33. Second gear; 34. Third gear; 35. Fourth gear; 36. First turbine; 37. First worm; 38. Second turbine; 39. Second worm; 4. Motor. Detailed Implementation

[0019] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that in the description of this utility model, all directional indicators (such as up, down, forward, backward, etc.) are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] like Figure 1-2 As shown, a damping sleeve structure includes a metal outer shell 1, a damping sleeve 2 disposed on the metal outer shell 1, and a linkage 3 that drives the damping sleeve 2. The damping sleeve 2 is a hollow cylindrical structure installed inside the metal outer shell 1 and rotates relative to the rotating shaft 31 in the linkage 3. Multiple support columns 22 are protruding from the outer wall of the damping sleeve 2 and are evenly distributed around the damping sleeve 2. A number of retaining springs 21 are sleeved on the damping sleeve 2, and the number of retaining springs 21 is adjustable. When the retaining springs 21 are sleeved on the damping sleeve 2, they contact and press against the support columns 22.

[0024] Furthermore, the metal casing 1 includes a main support 11, which is fixedly connected to the linkage 3.

[0025] Specifically, by setting multiple independent retaining springs 21 and allowing users or manufacturers to increase or decrease the number of retaining springs 21 according to actual needs, the magnitude of friction can be adjusted, and the damping effect can be flexibly controlled.

[0026] When the number of retaining springs 21 increases, the number of friction points acting on the surface of the rotating shaft increases, the total friction force increases, and the damping torque increases; when the number of retaining springs 21 decreases, the number of friction contact points decreases, the damping force decreases, and the turning speed increases; each retaining spring 21 can be preset with different elastic parameters to support more precise damping adjustment.

[0027] Linkage component 3 includes a rotating shaft 31 fixedly connected to the main support 1, and the rotating shaft 31 is disposed inside the damping sleeve 2;

[0028] The linkage 3 transmits the power of the motor 4 to the rotating shaft 31 step by step through a series of gears and worm gears, thereby driving the ceiling screen to complete the flipping action.

[0029] During the flipping process, the pivot 31 rotates within the damping sleeve 2 and rubs against the retaining spring 21 mounted on the damping sleeve, generating adjustable rotational resistance to prevent excessively rapid flipping and thus improve the safety and smoothness of screen unfolding.

[0030] During assembly, technicians can select the appropriate number and position of retaining springs 21 based on the weight, rotation angle, and target rotation speed of the ceiling screen. The retaining springs 21 are installed in the slots of the damping sleeve 2 through an elastic snap-fit ​​structure, and can be quickly added or removed without tools. During equipment maintenance, users can also readjust the number of retaining springs 21 according to actual usage to optimize the user experience or compensate for the long-term degradation of friction performance.

[0031] The linkage 3 is rotatably engaged with the rotating shaft 31. The first gear 32, the second gear 33 meshing with the first gear 32, the third gear 34 rotating coaxially with the second gear 33, the fourth gear 35 meshing with the third gear 34, and the first worm gear 36 rotating coaxially with the fourth gear 35.

[0032] The linkage 3 also includes a first worm 37 that rotates with the first worm wheel 36, a second worm wheel 38 that rotates coaxially with the first worm wheel 37, and a second worm 39 that rotates with the second worm wheel 38. The second worm 39 rotates coaxially with the motor 4.

Claims

1. A damping sleeve structure, characterized in that, The device includes a metal shell (1), a damping sleeve (2), a motor (4), and a linkage (3) for driving the connection between the motor (4) and the damping sleeve (2). The linkage (3) includes a rotating shaft (31) fixedly connected to the main support (1). The damping sleeve (2) is sleeved on the rotating shaft (31). The damping sleeve (2) is provided with several snap rings (21). The metal shell (1) includes a main support (11). The main support (11) is fixedly connected to the linkage (3).

2. The damping sleeve structure according to claim 1, characterized in that: The outer wall of the damping sleeve (2) is provided with a plurality of support posts (22) for engaging the snap ring (21).

3. The damping sleeve structure according to claim 1 or 2, characterized in that: The linkage (3) includes a first gear (32) that rotates with the shaft (31), a second gear (33) that meshes with the first gear (32), a third gear (34) that rotates coaxially with the second gear (33), a fourth gear (35) that meshes with the third gear (34), and a first worm gear (36) that rotates coaxially with the fourth gear (35).

4. The damping sleeve structure according to claim 3, characterized in that: The linkage (3) also includes a first worm (37) that rotates with the first worm wheel (36), a second worm wheel (38) that rotates coaxially with the first worm wheel (37), and a second worm (39) that rotates with the second worm wheel (38).

5. The damping sleeve structure according to claim 4, characterized in that: The second worm (39) rotates coaxially with the motor (4).

Images