Damping device, handrail and car seat

Abstract

The utility model relates to vehicle handrail structure technical field discloses a damping device, handrail and car seat, including handrail framework and pivot turntable connected on handrail framework, fixedly connected with fixed part on handrail framework, is connected with elastic abutment portion on fixed part, and the one end of elastic abutment portion away from fixed part is abutted with pivot turntable. The utility model patent solved the problem that the handrail damping structure in prior art weakens and deteriorates after long time use.

Description

Technical Field

[0001] This utility model relates to the field of vehicle handrail structure technology, specifically to a damping device, handrail, and car seat. Background Technology

[0002] To enhance driving comfort, many vehicles now feature armrests in the rear seats, along with armrest storage slots on the rear seat backs. When not in use, the armrest is rotated and stored in the slots. When needed, it is rotated to a horizontal position. The armrest provides elbow support for rear passengers and can also include cup holders and storage compartments for storing items. Existing armrest structures primarily consist of an armrest frame, a pivot, armrest components, and connecting hooks. The armrest components are mounted and fixed to the armrest frame, forming the aforementioned cup holders and storage compartments. The armrest frame is rotatably connected to the backrest frame via the pivot. In use, the armrest frame and its components rotate relative to the backrest frame via the pivot, allowing the entire armrest structure to be folded in or unfolded.

[0003] In existing handrail structures, to prevent strong impacts when the handrail is rotated from its receiving slot to a horizontal position, a buffer damping structure is incorporated into the handrail frame. This existing buffer damping structure mainly consists of a rotating shaft and disc, a passive rotating plate, an intermediate rotating plate, and a tension spring. The rotating shaft and disc are rotatably connected to the rotating shaft, and both the intermediate and passive rotating plates are rotatably connected to the handrail frame. The tension spring is fixedly connected between the passive rotating plate and the handrail frame. Insertion-rotation structures are provided between the intermediate rotating plate and both the rotating shaft and disc, allowing the rotating shaft and disc to rotate simultaneously when the intermediate rotating plate rotates. When the handrail is lowered by rotating the handrail structure, the handrail frame drives the intermediate rotating plate to rotate relative to the rotating shaft, causing the intermediate rotating plate to rotate. This rotation, in turn, drives the passive rotating plate, stretching the tension spring. The tension spring provides buffer damping for the entire handrail rotation, reducing the likelihood of significant impacts.

[0004] While the existing buffer structure can provide some cushioning protection during the lowering of the handrail, the cushioning effect mainly comes from the tension of the spring, and the damping effect is relatively limited. At the same time, with the increase of use, the spring will also weaken due to fatigue, resulting in poor cushioning and damping effect of the handrail structure. It is necessary to improve the existing damping structure to enhance the damping stability of the handrail during long-term use. Utility Model Content

[0005] The present invention aims to provide a damping device, armrest, and car seat to solve the problem that the damping effect of the armrest damping structure weakens and deteriorates after long-term use in the prior art.

[0006] To solve the above problems, the present invention adopts the following technical solution: a damping device, including a handrail frame and a rotating shaft and turntable rotatably connected to the handrail frame, a fixing member fixedly connected to the handrail frame, an elastic abutment part connected to the fixing member, and the end of the elastic abutment part away from the fixing member abutting against the rotating shaft and turntable.

[0007] The principle and beneficial effects of this solution are as follows: In this application, a fixing component is fixedly connected to the handrail frame, and an elastic abutment is connected to the fixing component. After installation, one end of the elastic abutment is fixedly connected, and the other end of the elastic abutment is pressed against the rotating shaft and turntable, causing the elastic abutment itself to undergo elastic deformation. When the handrail structure in the prior art needs to be lowered, by rotating the handrail frame and handrail components, the rotation of the intermediate rotating plate in the prior art not only drives the passive rotating plate to rotate, causing the passive rotating plate to stretch the tension spring, and the tension spring to stretch and undergo elastic deformation, thus providing a damping and buffering effect on the handrail structure; at the same time, the rotation of the intermediate rotating plate also drives the rotating shaft and turntable to rotate. When the rotating shaft and turntable rotate, relative displacement occurs between them and the elastic abutment, generating friction, so that the elastic abutment also provides a damping and buffering effect on the rotation of the rotating shaft and turntable, improving the stability of the handrail structure during the lowering process, reducing the impact that the handrail structure may be subjected to during the lowering process, and the double damping and buffering effect of the elastic abutment and the tension spring in the prior art ensures the protection effect of the handrail structure during the lowering process for a long time.

[0008] Preferably, as an improvement, the elastic clamping part includes a clamping spring and a clamping member, with the clamping spring connected between the clamping member and the fixing member.

[0009] In this design, a clamping spring is used to press the clamping component against the rotating shaft and turntable. The clamping spring is always in an elastic compression state, which can provide a stable elastic clamping force to the clamping component, thereby enabling the clamping component to provide a stable damping and buffering effect on the rotating shaft and turntable for a long time.

[0010] Preferably, as an improvement, the fixing member is provided with a sliding hole, the clamping spring is connected in the sliding hole, the gap between the fixing member and the rotating shaft and the turntable is smaller than the dimension of the clamping member along the axial direction of the sliding hole, the clamping member slides with the sliding hole and the clamping member abuts against the side wall of the rotating shaft and the turntable.

[0011] In this design, the sliding hole serves as a limiting and protective feature for the clamping spring, enabling the clamping spring to exert a more stable elastic clamping force on the clamping component. Furthermore, the sliding fit between the clamping component and the sliding hole ensures that the sliding hole remains abutted against the side wall of the rotating shaft and turntable under the elastic force of the clamping spring. When the clamping component rubs against the rotating shaft and turntable, because the gap between the fixed component and the rotating shaft and turntable is smaller than the axial dimension of the clamping component along the sliding hole, the clamping component will not fall out of the gap between the fixed component and the rotating shaft and turntable when providing damping and buffering, further ensuring the stability of the damping and buffering.

[0012] Preferably, as an improvement, the fixing member is connected to an adjusting member, and a retaining spring is connected between the adjusting member and the retaining member. The position of the adjusting member is adjustable along the central axis of the sliding hole.

[0013] In this solution, even if the clamping spring experiences fatigue failure after a period of use, the distance between the adjusting component and the clamping component can be reduced by adjusting the position of the adjusting component, thus effectively ensuring the damping and buffering effect of the clamping spring on the clamping component.

[0014] Preferably, as an improvement, the adjusting member includes an adjusting screw that is threadedly engaged with the fixing member.

[0015] In this design, the adjusting screw has a simple structure and is easy to adjust, allowing for convenient adjustment of the elastic clamping force of the clamping spring on the clamping component.

[0016] Preferably, as an improvement, the clamping element includes a clamping steel ball.

[0017] In this design, the clamping element is a clamping steel ball, which rolls in contact with the rotating shaft and turntable, effectively reducing wear on the rotating shaft and turntable and extending its service life.

[0018] Preferably, as an improvement, an intermediate rotating plate is connected to the rotating shaft turntable, and the rotating shaft turntable is located between the intermediate rotating plate and the abutment.

[0019] In this design, the rotating shaft and turntable are positioned between the intermediate rotating plate and the clamping member. When the intermediate rotating plate rotates and drives the rotating shaft and turntable to rotate, the clamping member provides a damping and buffering effect on the rotating shaft and turntable. The rotating shaft and turntable are subjected to force on both sides, making the force on the rotating shaft and turntable more uniform during use and the damping and buffering effect more stable.

[0020] Preferably, as an improvement, the fastener includes a fixed square tube fixedly connected to the handrail frame, and a fixed column is fixedly connected to the side wall of the fixed square tube, and the fixed column is fixedly connected to the handrail frame.

[0021] In this design, the fixing component is a fixed square tube, which can be easily fitted and fixed to the handrail frame, and a sliding hole structure can be easily set inside the fixed square tube; in addition, a fixing post is fixed on the fixed square tube, and the fixing post is fixedly connected to the handrail frame, which can easily fix the fixed square tube to the handrail frame.

[0022] A handrail, including the aforementioned damping device.

[0023] In this solution, the aforementioned damping device is installed on the handrail, which can effectively enhance the damping and buffering effect during the rotation of the handrail, reduce the impact and collision on the handrail during use, provide better protection for the handrail, and improve the comfort of using the handrail.

[0024] A car seat, including either the aforementioned damping device or the aforementioned armrest. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a damping device in Embodiment 1 of this utility model.

[0026] Figure 2 for Figure 1 A cross-sectional view from a top-down perspective (the section is located on the plane containing the central axis of the sliding hole).

[0027] Figure 3 This is a schematic diagram of a damping device in Embodiment 2 of this utility model.

[0028] Figure 4 for Figure 3 A cross-sectional view from a top-down perspective (the section is located on the plane containing the central axis of the sliding hole). Detailed Implementation

[0029] The following detailed description illustrates the specific implementation methods:

[0030] The reference numerals in the accompanying drawings of the instruction manual include: 1. Handrail frame; 2. Rotating shaft; 3. Rotating shaft turntable; 4. Intermediate rotating plate; 4. Insertion tooth 401; 5. Support rod; 6. Passive rotating plate; 7. Fixed square tube; 8. Tension spring; 9. Anti-locking spring; 10. Steel ball; 11. Adjusting screw.

[0031] Example 1

[0032] This embodiment is as shown in the attached figure. Figure 1 and Figure 2As shown: A damping device includes a handrail frame 1, a rotating shaft 2 rotatably connected to the handrail frame 1 via a bushing, a rotating shaft disc 3 fixed on the rotating shaft 2, so that the rotating shaft disc 3 and the handrail frame 1 are rotatably connected. At the same time, the handrail frame 1 is rotatably connected to an intermediate rotating plate 4 via a pin, and a passive rotating plate 6 is rotatably connected to the handrail frame 1 via a support rod 5. A tension spring 8 is fixedly connected between the passive rotating plate 6 and the handrail frame 1. The side walls of the rotating shaft disc 3 and the passive rotating plate 6 are provided with slots. The side wall of the intermediate rotating plate 4 is provided with insert teeth 401 that cooperate with the slots. When the intermediate rotating plate 4 rotates relative to the handrail frame 1, the insert teeth 401 can simultaneously drive the rotating shaft disc 3 and the passive rotating plate 6 to rotate.

[0033] Combination Figure 1 and Figure 2 A fixing member is fixedly connected to the handrail frame 1, and an elastic abutment part is connected to the fixing member. The end of the elastic abutment part away from the fixing member abuts against the rotating shaft turntable 3. Specifically, the fixing member in this embodiment includes a fixing square tube 7 fixedly connected to the handrail frame 1. A fixing post is integrally formed on the side wall of the fixing square tube 7. The handrail frame 1 has a mating hole that mates with the fixing post. After the fixing post passes through the mating hole, it is welded to the handrail frame 1 or fixedly connected by a nut thread to form a fixed connection.

[0034] The elastic clamping part in this embodiment includes a clamping spring 9 and a clamping member. The clamping spring 9 is connected between the clamping member and the fixing member. To facilitate the installation and connection of the clamping spring 9, a sliding hole is opened in the fixed square tube 7. The clamping spring 9 is located in the sliding hole, with one end of the sliding hole open and facing the side wall of the rotating shaft disk 3. The clamping member is a steel ball 10 located at one end of the opening in the sliding hole. The steel ball 10 is located between the clamping spring 9 and the side wall of the rotating shaft disk 3, and the rotating shaft disk 3 is located between the intermediate rotating plate 4 and the steel ball 10. The steel ball 10 slides in the sliding hole. Under the elastic force of the clamping spring 9, the steel ball 10 and the side wall of the rotating shaft disk 3 are always in a mutually clamping state. In addition, in this embodiment, the end of the fixed square tube 7 facing the rotating shaft turntable 3 is set to be an arc shape that matches the side wall of the rotating shaft turntable 3, and the gap between the fixed square tube 7 and the side wall of the rotating shaft turntable 3 is smaller than the diameter of the steel ball 10, thereby preventing the steel ball 10 from falling out of the sliding hole during use.

[0035] In practical application, the rotating shaft 2 is fixedly connected to the backrest frame of the seat in the prior art. When the armrest frame 1 is rotated to flatten the armrest structure, the rotating shaft 2 and the rotating shaft disc 3 are in a fixed position. The intermediate rotating plate 4 rotates relative to the rotating shaft 2. The slot on the rotating shaft disc 3 exerts a force on the corresponding insert 401 on the intermediate rotating plate 4, driving the intermediate rotating plate 4 to rotate. When the intermediate rotating plate 4 rotates, it drives the passive rotating plate 6 to rotate. When the passive rotating plate 6 rotates, it stretches the tension spring 8, so that the tension spring 8 provides a damping and buffering effect on the armrest structure. At the same time, since the rotating shaft disc 3 rotates relative to the armrest frame 1, the rotating shaft disc 3 and the steel ball 10 rub against each other. The steel ball 10 can also provide a damping and buffering effect on the rotation of the rotating shaft disc 3, so that the armrest structure receives a double damping and buffering effect during the lowering process. The armrest structure is more stable during the lowering process and is more comfortable to use.

[0036] An armrest, including the aforementioned damping device; a car seat, including the aforementioned damping device or the aforementioned armrest, wherein by providing a damping device on the armrest or car seat, the armrest structure receives a more stable damping and buffering effect, thereby providing stable buffering and protection for the armrest structure.

[0037] Example 2

[0038] The difference between Example 2 and Example 1 is as follows: Figure 3 and Figure 4 As shown, in this embodiment, an adjusting component is connected to the fixed square tube 7, and a retaining spring 9 is connected between the adjusting component and the retaining component. The position of the adjusting component is adjustable along the central axis of the sliding hole. Specifically, the adjusting component includes an adjusting screw 11 that is threaded into the fixed square tube 7. The head end of the adjusting screw 11 protrudes beyond the fixed square tube 7, and the end of the adjusting screw 11 abuts against the retaining spring 9. After the retaining spring 9 has been used for a period of time, it may become fatigued. At this time, the retaining spring 9 can be squeezed by rotating the adjusting screw 11, so that the retaining spring 9 can stably apply an elastic retaining force to the steel ball 10, effectively ensuring the damping and buffering effect of the steel ball 10 on the rotating shaft turntable 3.

[0039] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A damping device, comprising a handrail frame and a rotating shaft disk rotatably connected to the handrail frame, characterized in that: A fixing member is fixedly connected to the armrest frame, and an elastic abutment part is connected to the fixing member. The end of the elastic abutment part away from the fixing member abuts against the rotating shaft and turntable.

2. The damping device according to claim 1, characterized in that: The elastic abutment part includes a clamping spring and a clamping member, with the clamping spring connected between the clamping member and the fixing member.

3. A damping device according to claim 2, characterized in that: The fixing member is provided with a sliding hole, and the clamping spring is connected in the sliding hole. The gap between the fixing member and the rotating shaft and the turntable is smaller than the dimension of the clamping member along the axial direction of the sliding hole. The clamping member slides with the sliding hole and abuts against the side wall of the rotating shaft and the turntable.

4. A damping device according to claim 3, characterized in that: An adjusting member is connected to the fixing member, and a retaining spring is connected between the adjusting member and the retaining member. The position of the adjusting member is adjustable along the central axis of the sliding hole.

5. A damping device according to claim 4, characterized in that: The adjusting component includes an adjusting screw that is threadedly engaged with the fixing component.

6. A damping device according to claim 2, characterized in that: The clamping element includes clamping steel balls.

7. A damping device according to claim 2, characterized in that: An intermediate rotating plate is connected to the rotating shaft turntable, and the rotating shaft turntable is located between the intermediate rotating plate and the clamping member.

8. A damping device according to claim 1, characterized in that: The fastener includes a fixed square tube fixedly connected to the handrail frame, and a fixed column fixedly connected to the side wall of the fixed square tube, and the fixed column fixedly connected to the handrail frame.

9. A handrail, characterized in that: Includes a damping device as described in any one of claims 1-8.

10. A car seat, characterized in that: Includes a damping device as described in any one of claims 1-8 or a handrail as described in claim 9.

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