Damper structure and table plate structure
By using a side-mounted cylindrical spring and transmission mechanism, the difficulties in tabletop installation and opening control of existing damping structures have been solved, achieving a lightweight, stable opening, and noiseless tabletop structure design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGDA PRECISION PARTS (DONGGUAN) CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-04-24
AI Technical Summary
Existing damping structures are difficult to install in compact or oddly shaped tables, cannot effectively control the opening size of small tables, and have problems such as shaking, abnormal noise, and assembly deviation, which affect the appearance and user experience.
Using a side-mounted cylindrical spring as the elastic element, the transmission part and the cylindrical spring work together to achieve power transmission and the accumulation and release of elastic potential energy. Combined with the non-circular connection part and cap design, it ensures power transmission efficiency and stability, simplifies the installation process and precisely controls the opening angle.
It reduces installation space requirements, simplifies the installation process, achieves adaptability to different tabletop sizes, ensures stable opening dimensions, avoids abnormal noises, improves user experience, and reduces structural weight.
Smart Images

Figure CN224159201U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of damping technology, and in particular to a damper structure and a table structure. Background Technology
[0002] Existing damping structures typically include a shaft, a connector, a torsion spring, and a torsion spring washer. The connector, torsion spring, and torsion spring washer are sequentially fitted onto the shaft. Both the connector and the torsion spring can rotate relative to the shaft, and the torsion spring washer rotates with the shaft. The two ends of the torsion spring are connected to the connector and the torsion spring washer, respectively. Thus, when the shaft rotates, it causes the torsion spring washer to rotate relative to the connector. At this time, because the two ends of the torsion spring are connected to the torsion spring washer and the connector, the torsion spring deforms, thereby generating a damping force. However, this design has the following drawbacks:
[0003] 1. Existing damping structures require suitable fixing points and torsional space for their torsion springs. Their shapes and installation methods are relatively complex, and they have high requirements for spatial layout. They may be difficult to install in some compact or specially shaped tables. As a result, more materials and parts are used, and the product assembly is heavier.
[0004] 2. Existing damping designs cannot effectively control the opening size of the small table, resulting in the table failing to open when it is in use.
[0005] 3. In the existing damping structure, the clearance between the damping shaft and the torsion spring is too large, and the outer diameter of the shaft is too large. When the small table is tapped left and right, the torsion spring shakes and makes abnormal noise.
[0006] 4. The damping structure of the existing technology is prone to deviation during assembly of the damping angle, which leads to uneven gaps between the left and right supports after the small table is opened, affecting the appearance.
[0007] Therefore, it is necessary to propose a new solution to the above problems. Utility Model Content
[0008] In view of this, the present invention addresses the deficiencies of the prior art, and its main purpose is to provide a damper structure and a table structure, which are used to solve the above-mentioned problems.
[0009] To achieve the above objectives, the present invention adopts the following technical solution:
[0010] Firstly, a damper structure includes:
[0011] A shaft with a transmission part on its side wall, the transmission part rotating as the shaft rotates;
[0012] An elastic element is disposed on the side of the shaft and connected to the aforementioned transmission part. The accumulation and release of the elastic potential energy of the elastic element corresponds to the forward / reverse rotation of the transmission part, thereby the rotation of the transmission part causes the elastic element to generate elastic potential energy, or the elastic element releases elastic potential energy to drive the transmission part to rotate.
[0013] As a preferred embodiment, a first transmission member is sleeved on the shaft, and the first transmission member rotates with the rotation of the shaft. The first transmission member has a first protrusion. A second transmission member is rotatably sleeved on the shaft. The second transmission member has a second protrusion and the aforementioned transmission part. In the circumferential direction of rotation of the first transmission member, the first protrusion and the second protrusion correspond to each other. When the first protrusion rotates to the first protrusion position, the first protrusion pushes the second protrusion so that the first transmission member pushes the second transmission member to rotate.
[0014] As a preferred embodiment, the elastic element is a cylindrical spring, and the transmission part is connected to the end of the cylindrical spring.
[0015] As a preferred embodiment, the end of the cylindrical spring is provided with a cap, and the transmission part abuts against the cap.
[0016] As a preferred embodiment, the extension direction of the cylindrical spring is consistent with the tangent in the vertical direction of the circumferential rotation trajectory of the transmission part.
[0017] In a second aspect, a tabletop structure includes a table frame and a damper structure as described in the first aspect, wherein the damper mechanism is disposed on the table frame.
[0018] As a preferred embodiment, the table frame is provided with a mounting cavity, the elastic element is disposed in the mounting cavity, the table frame is detachably provided with a mounting bracket, the shaft is rotatably disposed on the mounting bracket, and the end of the shaft is provided with a connecting part that needs to be driven to rotate, the cross section of the connecting part is non-circular.
[0019] As a preferred embodiment, the mounting bracket includes a fixing plate and a reel, the fixing plate being fixed to the table frame by screws, and the axis being rotatably mounted on the reel.
[0020] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, its main features are:
[0021] By employing a side-mounted elastic element (such as a cylindrical spring) instead of the traditional torsion spring mounted on the shaft, the space occupied by the shaft and the requirements for the shape of the installation position are significantly reduced. Installation is more convenient and it is easier to adapt to various internal structures and space constraints of different tabletops. This results in fewer material parts and a lighter overall product weight, improving adaptability and making the overall structure simpler and lighter. Also, because of the side-mounted elastic element (easy to replace), this application solution can achieve the unlocking and opening function of products (such as tabletops) of different sizes and weights by replacing different specifications of elastic elements while maintaining the same external dimensions. This damper structure design is highly adaptable to the internal structure design of products (such as tabletops), and the opening and closing force and opening size are stable, which is something that the torsion spring damper structure in the prior art cannot achieve.
[0022] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the tabletop structure according to an embodiment of the present utility model;
[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0025] Figure 3 This is a schematic diagram of another part of the tabletop structure according to an embodiment of the present utility model;
[0026] Figure 4 yes Figure 3 Enlarged view at point B in the middle;
[0027] Figure 5 This is a schematic diagram of the damper structure according to an embodiment of the present invention;
[0028] Figure 6 This is an exploded view of the damper structure according to an embodiment of the present invention;
[0029] Figure 7 This is a schematic diagram of the table frame structure according to an embodiment of the present utility model;
[0030] Figure 8 yes Figure 7 Enlarged view of point C.
[0031] Explanation of reference numerals in the attached figures:
[0032] 10. Shaft; 11. Transmission part; 12. Connecting part; 20. Elastic element; 21. Cap; 30. First transmission element; 31. First protrusion; 40. Second transmission element; 41. Second protrusion; 51. Connecting rod; 60. Table frame; 61. Mounting cavity; 62. Mounting bracket; 621. Fixing plate; 622. Drum. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0034] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0035] Please see Figures 1 to 8 This utility model provides a damper structure, including:
[0036] A shaft 10 has a transmission part 11 on its side wall, and the transmission part 11 rotates as the shaft 10 rotates;
[0037] The elastic element 20 is disposed on the side of the shaft 10 and connected to the aforementioned transmission part 11. The accumulation and release of the elastic potential energy of the elastic element 20 corresponds to the rotation of the transmission part 11 in the forward / reverse direction. Thus, the rotation of the transmission part 11 causes the elastic element 20 to generate elastic potential energy, or the elastic element 20 releases elastic potential energy to drive the transmission part 11 to rotate.
[0038] By using a side-mounted elastic element 20 (such as a cylindrical spring) instead of the traditional torsion spring sleeved on the shaft 10, the space occupied by the shaft 10 and the requirements for the shape of the installation position are significantly reduced. Installation is more convenient and it is easier to adapt to various internal structures and space constraints of different tabletops. This results in fewer material parts and a lighter overall product weight, which improves adaptability and makes the overall structure simpler and lighter. Also, because of the side-mounted elastic element 20 (which is easy to replace), this application solution can achieve the unlocking and opening function of products (such as tabletops) of different sizes and weights by replacing different specifications of elastic elements 20 while ensuring that the external dimensions remain unchanged. This damper structure design is highly adaptable to the internal structure design of products (such as tabletops), and the opening and closing force and opening size are stable, which is something that the torsion spring damper structure in the prior art cannot achieve.
[0039] Furthermore, a first transmission member 30 is sleeved on the shaft 10. The first transmission member 30 rotates with the rotation of the shaft 10. The first transmission member 30 has a first protrusion 31. A second transmission member 40 is rotatably sleeved on the shaft 10. The second transmission member 40 has a second protrusion 41 and the aforementioned transmission part 11. In the circumferential direction of rotation of the first transmission member 30, the first protrusion 31 and the second protrusion 41 correspond to each other. When the first protrusion 31 rotates to the position of the first protrusion 31, the first protrusion 31 pushes the second protrusion 41 so that the first transmission member 30 pushes the second transmission member 40 to rotate. Power transmission is achieved through the cooperation of the first protrusion 31 and the second protrusion 41 on both. This design allows the first protrusion 31 to push the second protrusion 41 at a specific rotation angle (such as when the table is close to the closed position), thereby driving the second transmission component 40 to compress the elastic component 20. This directly achieves precise control of the table opening angle, ensuring that the table can reliably spring open to the predetermined maximum angle. In practice, the seat table is connected to the shaft 10 (usually through a connecting rod 51) and rotates together with the shaft 10. When the table rotates to the maximum angle, the first protrusion 31 contacts the second protrusion 41 and pushes the second protrusion 41 to rotate, allowing the transmission component 11 to press against the elastic component 20 and accumulate elastic potential energy. Finally, the table is locked by the seat's locking assembly. When the seat's locking assembly is unlocked, the shaft 10 rotates under the action of the elastic potential energy of the elastic component 20, thereby driving the table to rotate and spring open, thus completing the action of unlocking and opening the table.
[0040] Furthermore, the elastic element 20 is a cylindrical spring, and the transmission part 11 is connected to the end of the cylindrical spring. Compared with the torsion spring commonly used in the prior art, the cylindrical spring has a regular and simple shape, which is more convenient to manufacture and install. It is easier to assemble and less prone to deformation. It can avoid the problem of uneven gap between the left and right sides of the connecting rod 51 in the table assembly structure caused by problems such as improper installation of the shaft 10, deformation of the torsion spring, and torsion spring angle. The requirements for assembly space and precision are significantly reduced. In addition, the cylindrical spring releases pressure after being compressed to make the table spring open. The output torque is stable, so that the table will spring open more smoothly and stably after unlocking. It can also avoid the problem of abnormal noise generated when the vehicle is driving.
[0041] Furthermore, a cap 21 is provided at the end of the cylindrical spring, and the transmission part 11 abuts against the cap 21. The addition of the cap 21 at the end of the cylindrical spring allows the transmission part 11 to press against the cap 21, protecting the end of the cylindrical spring from deformation or damage and extending the service life of the cylindrical spring. At the same time, the cap 21, as a smooth contact surface, can reduce frictional resistance, making the cylindrical spring move more smoothly and fluidly during compression and rebound, thus improving the performance stability of the damper.
[0042] Furthermore, the extension direction of the cylindrical spring is consistent with the tangent of the vertical direction of the circumferential rotation trajectory of the transmission part 11. This geometric alignment design eliminates unnecessary lateral force components, thereby maximizing the efficiency of force transmission and energy utilization, while avoiding lateral bending deformation of the spring and ensuring the stability of the output torque.
[0043] This utility model also provides a tabletop structure, including a table frame 60 and the aforementioned damper structure. The damper mechanism is disposed on the table frame 60, directly applying the advantages of the aforementioned damper structure (compact space, lightweight, precise and controllable opening angle, stable and smooth operation) to the specific product of the tabletop. This provides a tabletop structure with superior performance, a simpler structure, and stronger assembly adaptability, improving the user experience and reliability of the tabletop. It should be noted that the aforementioned damper structure can also be applied to other products and is not limited thereto.
[0044] Furthermore, the table frame 60 is provided with a mounting cavity 61, the elastic element 20 is disposed in the mounting cavity 61, the table frame 60 is detachably provided with a mounting bracket 62, the shaft 10 is rotatably disposed on the mounting bracket 62, and the end of the shaft 10 is provided with a connecting part 12 that is connected to a part that needs to be driven to rotate. The cross-section of the connecting part 12 is non-circular. In this embodiment, the connecting part 12 is connected to the connecting rod 51. This design makes the installation of the elastic element 20 (cylindrical spring) independent of the shaft 10, which is convenient for later maintenance and replacement.
[0045] Furthermore, the mounting bracket 62 includes a fixing plate 621 and a reel 622. The fixing plate 621 is fixed to the table frame 60 by screws, and the shaft 10 is rotatably mounted on the reel 622.
[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A damper structure, characterized in that, Including A shaft (10) has a transmission part (11) on its side wall, and the transmission part (11) rotates with the rotation of the shaft (10); An elastic element (20) is disposed on the side of the shaft (10) and connected to the aforementioned transmission part (11). The accumulation and release of the elastic potential energy of the elastic element (20) corresponds to the rotation of the transmission part (11) in the forward / reverse direction. Thus, the rotation of the transmission part (11) causes the elastic element (20) to generate elastic potential energy, or the elastic element (20) releases elastic potential energy to drive the transmission part (11) to rotate.
2. The damper structure according to claim 1, characterized in that, A first transmission member (30) is sleeved on the shaft (10). The first transmission member (30) rotates with the rotation of the shaft (10). The first transmission member (30) has a first protrusion (31). A second transmission member (40) is rotatably sleeved on the shaft (10). The second transmission member (40) has a second protrusion (41) and the aforementioned transmission part (11). In the circumferential direction of rotation of the first transmission member (30), the first protrusion (31) and the second protrusion (41) correspond to each other. When the first protrusion (31) rotates to the position of the first protrusion (31), the first protrusion (31) pushes the second protrusion (41) so that the first transmission member (30) pushes the second transmission member (40) to rotate.
3. The damper structure according to claim 1, characterized in that, The elastic element (20) is a cylindrical spring, and the transmission part (11) is connected to the end of the cylindrical spring.
4. The damper structure according to claim 3, characterized in that, The end of the cylindrical spring is provided with a cap (21), and the transmission part (11) abuts against the cap (21).
5. A damper structure according to claim 3, characterized in that, The extension direction of the cylindrical spring is consistent with the tangent of the vertical direction of the circumferential rotation trajectory of the transmission part (11).
6. A tabletop structure, characterized in that, It includes a table frame (60) and a damper structure as described in any one of claims 1-5, the damper structure being disposed on the table frame (60).
7. A tabletop structure according to claim 6, characterized in that, The table frame (60) is provided with a mounting cavity (61), the elastic element (20) is provided on the mounting cavity (61), the table frame (60) is detachably provided with a mounting bracket (62), the shaft (10) is rotatably provided on the mounting bracket (62), the end of the shaft (10) is provided with a connecting part (12) to be driven to rotate, and the cross section of the connecting part (12) is non-circular.
8. A tabletop structure according to claim 7, characterized in that, The mounting bracket (62) includes a fixing plate (621) and a reel (622). The fixing plate (621) is fixed to the table frame (60) by screws, and the shaft (10) is rotatably mounted on the reel (622).