Electric handrail capable of being manually adjusted in auxiliary mode

Abstract

The utility model discloses an electric armrest capable of being manually adjusted in an auxiliary mode. The electric armrest comprises a backrest side plate, a driving motor, a mounting shaft, a clutch assembly, an adjusting assembly and an armrest body. The driving motor is mounted on the backrest side plate, and the mounting shaft is connected to the output end of the driving motor and connected with the armrest through a clutch assembly to drive the armrest to rotate; the adjusting assembly is arranged on the handrail, and the adjusting assembly is connected with the clutch assembly and controls clutch of the clutch assembly. The manual button is manually adjusted in an auxiliary mode, the power connection with the motor is disconnected, and after the manual button is loosened, the power connection can be automatically recovered. And the structure is ingenious, so that the safety, reliability and comfort of the seat armrest are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and more specifically, to a manually adjustable electric armrest. Background Technology

[0002] Electric armrests for car seats are devices that can be adjusted by electric power. During seat adjustment, the height, angle, or fore-and-aft position of the armrest can be adjusted via buttons or other control methods to find the most comfortable posture, aiming to improve passenger comfort and convenience.

[0003] Currently, the existing electric handrails have a long adjustment time, requiring passengers to wait for them to adjust properly when getting on and off the vehicle. This may cause a poor experience for passengers, especially in emergency situations, such as when the electric handrails fail to move due to power failure or other problems, thus hindering the user's escape.

[0004] Therefore, a manually adjustable electric handrail is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a manually adjustable electric handrail to overcome the aforementioned defects in the prior art.

[0006] The technical solution to achieve the purpose of this utility model is: a manually adjustable electric armrest, including a backrest side panel, a drive motor, a mounting shaft, a clutch assembly, an adjustment assembly, and an armrest; the drive motor is mounted on the backrest side panel, the mounting shaft is connected to the output end of the drive motor, and is connected to the armrest through the clutch assembly to drive the armrest to rotate; the adjustment assembly is disposed on the armrest, and the adjustment assembly is connected to the clutch assembly and controls the clutch engagement and disengagement of the clutch assembly.

[0007] In a preferred embodiment, the clutch assembly includes a transmission gear and a clutch bushing sleeved on the mounting shaft; the transmission gear meshes with the output gear of the drive motor; the inner ring of the transmission gear has a groove, and the clutch bushing sleeve has a key; the mounting shaft has multiple sliding grooves along the axial direction, and the inner ring of the clutch bushing sleeve has multiple corresponding protrusions, and the clutch bushing sleeve is slidably sleeved on the mounting shaft.

[0008] In a preferred embodiment, the clutch assembly includes an adjusting sleeve fixed to the clutch bushing. The adjusting sleeve controls the connection or disconnection of the clutch bushing with the transmission gear by controlling the sliding of the clutch bushing on the mounting shaft.

[0009] In a preferred embodiment, the clutch assembly further includes a guide sleeve, a spring, and a positioning sleeve sequentially sleeved along the mounting shaft; the positioning sleeve has a plurality of axially oriented guide grooves, and the guide sleeve has a plurality of guide posts corresponding to the guide grooves; the spring is connected to the guide sleeve and the positioning sleeve respectively; the positioning sleeve is fixedly connected to one end of the inner side of the handrail, and the guide sleeve is fixedly connected to the clutch sleeve.

[0010] In a preferred embodiment, the clutch bushing is further provided with two connecting rods, and the guide bushing is provided with mounting holes that cooperate with the connecting rods.

[0011] In a preferred embodiment, the clutch bushing further includes an outer bushing sleeved on the clutch bushing, the outer bushing sleeve rotating relative to the clutch bushing sleeve; the outer bushing sleeve is provided with an arc-shaped limiting hole groove corresponding to the connecting rod, the arc-shaped limiting hole groove limiting the rotation angle of the clutch bushing sleeve.

[0012] In a preferred embodiment, the curvature of the arc-shaped limiting hole groove is set between π / 2 and 2π / 3.

[0013] In a preferred embodiment, the adjustment component includes a manual button disposed on the handrail; the manual button is connected to the adjustment bushing via a pull cord.

[0014] In a preferred embodiment, the adjusting bushing is fitted before the guide bushing and the clutch bushing, and has a through hole that cooperates with the pull rope. The pull rope passes through the through hole and is fixedly connected to the adjusting bushing.

[0015] In a preferred embodiment, the manual button is located on the side of the handrail away from the positioning bushing.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] (1) This utility model controls the connection and disconnection of the clutch component by adjusting the component, and can manually assist in adjusting the electric handrail. When encountering the corresponding situation, you only need to adjust the corresponding button on the handrail to complete the switch between electric and manual operation of the electric handrail. It is convenient to operate and has higher safety and convenience.

[0018] (2) This utility model uses the structural cooperation of transmission gear and clutch bushing. It only requires controlling the sliding of clutch bushing on the mounting shaft to control the connection or disconnection of clutch bushing and transmission gear. The structure is stable and the operation is convenient.

[0019] (3) The adjustment component of this utility model can achieve synchronous rotation with the mounting shaft, and control the rotation of the handrail by fixing the positioning bushing to the handrail, and the spring can realize the automatic reset of the clutch bushing.

[0020] (4) The arc-shaped limiting hole groove of this utility model can limit the rotation angle of the handrail, making the rotation safety and reliability of the handrail higher.

[0021] (5) The arc setting of the arc-shaped limiting hole groove of this utility model allows the handrail to be adjusted at the most comfortable angle for the human body.

[0022] (6) This utility model has a clever structure, is easy to assemble, has low installation cost, is easy to operate, and has high structural reliability. Attached Figure Description

[0023] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0024] Figure 1 This is a perspective view of the present utility model.

[0025] Figure 2 This is an exploded view of the present invention.

[0026] Figure 3 This is a 3D view of the clutch bushing.

[0027] Figure 4 This is a three-dimensional view of the transmission gears.

[0028] The labels in the attached diagram are as follows: 1. Backrest side panel; 2. Drive motor; 3. Mounting shaft; 4. Clutch assembly; 4-1. Transmission gear; 4-1-1. Groove; 4-2. Clutch bushing; 4-2-1. Key; 4-2-2. Connecting rod; 4-2-3. Outer bushing; 4-2-4. Arc-shaped limiting hole groove; 4-3. Adjusting bushing; 4-4. Guide bushing; 4-4-1. Guide post; 4-5. Spring; 4-6. Positioning bushing; 4-6-1. Guide groove; 5. Adjustment assembly; 5-1. Manual button; 5-2. Pull cord; 6. Armrest. Detailed Implementation

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model 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. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be used to limit the scope of protection of this utility model.

[0035] Example 1, see Figure 1 and Figure 2A manually adjustable electric handrail includes a backrest side panel 1, a drive motor 2, a mounting shaft 3, a clutch assembly 4, an adjustment assembly 5, and an armrest 6. The drive motor 2 is mounted inside the backrest side panel 1. The mounting shaft 3 passes through the backrest side panel 1 and is fixedly connected to the armrest 5, driving the armrest 6 to rotate. The mounting shaft 3 is connected to the output end of the drive motor 2 via the clutch assembly 4. The adjustment assembly 5 is mounted on the armrest 6 and is connected to the clutch assembly 4, controlling the engagement and disengagement of the clutch assembly 4. In this embodiment, the adjustment assembly 5 controls the engagement and disengagement of the clutch assembly 4, allowing for manual adjustment of the electric handrail. When a specific situation arises, simply activating the adjustment assembly 5 is sufficient to switch between electric and manual operation of the electric handrail, offering convenient operation and enhanced safety and convenience.

[0036] Preferably, see Figure 3 and Figure 4 The clutch assembly 4 includes a transmission gear 4-1, a clutch bushing 4-2, and an adjusting bushing 4-3 fixed to the clutch bushing 4-2. The transmission gear 4-1 is located in the inner housing of the drive motor 2 and meshes with the output gear of the drive motor 2. The mounting shaft 3 passes through the drive motor 2 and the backrest side plate 1 in sequence and is fixedly connected to the armrest 6. The transmission gear 4-1, the clutch bushing 4-2, and the adjusting bushing 4-3 are sequentially sleeved on the mounting shaft 3 in the axial direction away from the drive motor.

[0037] The inner ring of the transmission gear 4-1 has a groove 4-1-1, and the clutch sleeve 4-2 has a key 4-2-1 that cooperates with it. The mounting shaft 3 has multiple sliding grooves along the axial direction, and the inner ring of the clutch sleeve 4-2 has multiple corresponding protrusions. The clutch sleeve 4-2 is slidably sleeved on the mounting shaft 3. The clutch sleeve 4-2 is fixed to an adjusting sleeve 4-3, which controls the connection or disconnection of the clutch sleeve 4-2 and the transmission gear 4-1 by controlling the sliding of the clutch sleeve 4-2 on the mounting shaft 3. The adjusting component 5 includes a manual button 5-1 and a pull rope 5-2, with the manual button 5-1 connected to the adjusting sleeve 4-3 via the pull rope 5-2. Through the structural cooperation of the transmission gear and the clutch sleeve, the connection or disconnection of the clutch sleeve and the transmission gear can be controlled simply by controlling the sliding of the clutch sleeve on the mounting shaft. The structure is stable and the operation is convenient.

[0038] The connection between the mounting shaft 3 and the handrail 6 is designed as a cuboid and is equipped with a flexible pin. The handrail 6 is equipped with a corresponding pin groove, which facilitates the fixed connection and installation of the mounting shaft and the handrail 6.

[0039] Preferably, the clutch assembly 4 further includes a guide sleeve 4-4, a spring 4-5, and a positioning sleeve 4-6 sequentially sleeved along the axial direction of the mounting shaft 3. The positioning sleeve 4-6 has multiple axially oriented guide grooves 4-6-1, and the guide sleeve 4-4 has multiple guide posts 4-4-1 corresponding to the guide grooves 4-6-1. The spring 4-5 is connected to both the guide sleeve 4-4 and the positioning sleeve 4-6. The positioning sleeve 4-6 is fixedly connected to one end of the inner side of the handrail 6, and the guide sleeve 4-4 is fixedly connected to the clutch sleeve 4-2. The clutch sleeve 4-2 also has two connecting rods 4-2-2, and the guide sleeve 4-4 has corresponding mounting holes that mate with the connecting rods 4-2-2. The adjustment assembly can achieve synchronous rotation with the mounting shaft, the spring can achieve automatic reset of the clutch sleeve, and the fixed connection between the positioning sleeve and the handrail is more secure.

[0040] Adjusting bushing 4-3 is fitted before guide bushing 4-4 ​​and clutch bushing 4-2, and has a through hole that mates with pull rope 5-2. Pull rope 5-2 passes through the through hole and is fixedly connected to adjusting bushing 4-3.

[0041] Preferably, the guide groove 4-6-1 is provided in three parts and is evenly distributed along the circumference of the positioning bushing 4-6, and the guide post 4-4-1 is provided in three parts and is evenly distributed along the circumference of the guide bushing 4-4.

[0042] Preferably, the clutch bushing 4-2 further includes an outer bushing 4-2-3 sleeved on the clutch bushing 4-2, the outer bushing 4-2-3 rotating relative to the clutch bushing 4-2; the outer bushing 4-2-3 is provided with an arc-shaped limiting groove 4-2-4 corresponding to the connecting rod 4-2-2, the arc-shaped limiting groove 4-2-4 limiting the rotation angle of the clutch bushing 4-2. The arc-shaped limiting groove can limit the rotation angle of the handrail, making the rotation safety and reliability of the handrail higher.

[0043] Preferably, the curvature of the arc-shaped limiting groove 4-2-4 is set between π / 2 and 2π / 3. The curvature setting of the arc-shaped limiting groove allows the handrail to be adjusted to the most comfortable angle for the human body.

[0044] Preferably, the manual button 5-1 is located on the side of the armrest 6 away from the positioning bushing 4-6. The position of the manual button 5-1 is also convenient for use.

[0045] This embodiment provides a manually adjustable electric armrest. By pressing the manual button 5-1, the pull cord 5-2 pulls the adjusting sleeve 4-3 along the axial direction of the mounting shaft 3 away from the drive motor 2. This movement is further driven by the guide sleeve 4-4, causing the clutch sleeve 4-2 to separate from the keyway of the transmission gear 4-1. This separates the drive motor 2 from the armrest 6 transmission structure, allowing the armrest 6 to rotate manually. Releasing the manual button 5-1 resets the spring 4-5, reconnecting the clutch sleeve 4-2 and the transmission gear 4-1, restoring the drive motor 2's control over the armrest 6. This embodiment features an ingenious structure that significantly improves the safety, reliability, and comfort of the seat armrest.

[0046] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A manually assisted adjustable power handrail, characterized by: The utility model provides a kind of adjustable armrest, including backrest side plate (1), drive motor (2), mounting shaft (3), clutch assembly (4), adjusting assembly (5) and armrest (6);The drive motor (2) is installed on the backrest side plate (1), the mounting shaft (3) is connected in the output end of the drive motor (2), and is connected with the armrest (6) by clutch assembly (4), drives the armrest (6) rotation;The adjusting assembly (5) is arranged on the armrest (6), and the adjusting assembly (5) is connected with the clutch assembly (4) and controls the clutch of clutch assembly (4).

2. A manually assisted adjustable power handrail as claimed in claim 1, wherein: The clutch assembly (4) includes transmission gear (4-1) and clutch shaft sleeve (4-2) that are sleeved on the mounting shaft (3);The transmission gear (4-1) is engaged with the output gear of the drive motor (2);The transmission gear (4-1) inner ring is provided with recess (4-1-1), and the clutch shaft sleeve (4-2) is provided with key (4-2-1) in cooperation;The mounting shaft (3) is provided with a plurality of sliding grooves in the axial direction, and the clutch shaft sleeve (4-2) inner ring is provided with a plurality of protrusions in correspondence, and the clutch shaft sleeve (4-2) is slidably sleeved on the mounting shaft (3).

3. A manually assisted adjustable power handrail as claimed in claim 2, wherein: The clutch assembly (4) further includes adjusting shaft sleeve (4-3) fixed with the clutch shaft sleeve (4-2), and the adjusting shaft sleeve (4-3) controls the connection or disconnection of the clutch shaft sleeve (4-2) and the transmission gear (4-1) by controlling the sliding of the clutch shaft sleeve (4-2) on the mounting shaft (3).

4. A manually assisted adjustable power handrail as claimed in claim 3, wherein: The clutch assembly (4) further includes guiding shaft sleeve (4-4), spring (4-5) and positioning shaft sleeve (4-6) that are sequentially sleeved in the axial direction of the mounting shaft (3);The positioning shaft sleeve (4-6) is provided with a plurality of guiding grooves (4-6-1) in the axial direction, and the guiding shaft sleeve (4-4) is provided with a plurality of guiding columns (4-4-1) in correspondence with the guiding grooves (4-6-1);The spring (4-5) is connected with the guiding shaft sleeve (4-4) and the positioning shaft sleeve (4-6) respectively;The positioning shaft sleeve (4-6) is fixedly connected with one end of the inner side of the armrest (6), and the guiding shaft sleeve (4-4) is fixedly connected with the clutch shaft sleeve (4-2).

5. A manually assisted adjustable power handrail as claimed in claim 4, wherein: The clutch shaft sleeve (4-2) is further provided with two connecting rods (4-2-2), and the guiding shaft sleeve (4-4) is provided with mounting holes corresponding to the connecting rods (4-2-2).

6. A manually assisted adjustable power handrail as claimed in claim 5 wherein: The clutch shaft sleeve (4-2) further includes outer shaft sleeve (4-2-3) sleeved on the clutch shaft sleeve (4-2), and the outer shaft sleeve (4-2-3) rotates relative to the clutch shaft sleeve (4-2);The outer shaft sleeve (4-2-3) is provided with an arc-shaped limiting hole slot (4-2-4) corresponding to the connecting rod (4-2-2), and the arc-shaped limiting hole slot (4-2-4) limits the rotation angle of the clutch shaft sleeve (4-2).

7. A manually assisted adjustable power handrail as claimed in claim 6, characterised in that: The radian of the arc-shaped limiting hole slot (4-2-4) is between π / 2 and 2π / 3.

8. A manually assisted adjustable power handrail as defined in claim 4 wherein: The adjusting assembly (5) comprises a manual button (5-1) arranged on the handrail (6); the manual button (5-1) is connected with the adjusting shaft sleeve (4-3) through a pull rope (5-2).

9. A manually assisted adjustable power handrail as claimed in claim 8, characterised in that: The adjusting shaft sleeve (4-3) is sleeved in front of the guide shaft sleeve (4-4) and the clutch shaft sleeve (4-2), and is provided with a through hole matched with the pull rope (5-2); the pull rope (5-2) is fixedly connected with the adjusting shaft sleeve (4-3) through the through hole.

10. A manually assisted adjustable power handrail as defined in claim 8, wherein: The manual button (5-1) is arranged on the side of the handrail (6) away from the positioning shaft sleeve (4-6).

Images