Dynamic handrail

Abstract

The utility model provides a dynamic armrest which comprises a supporting seat, a lifting seat, a rotating piece and a bearing piece which are sequentially arranged from top to bottom, the supporting seat is used for being connected with a chair seat, and the bearing piece is used for supporting arms. A lifting control assembly is arranged between the lifting base and the supporting base to achieve self-circulation lifting and can drive the rotating piece and the bearing piece to ascend and descend, the rotating piece can transversely rotate and drive the bearing piece, and the bearing piece can further transversely and vertically rotate relative to the rotating piece. The armrest has multiple adjustable positions and various shapes, the height of the lifting seat, the angle of the rotating piece and the angles of the bearing piece in two directions can be automatically adjusted according to the posture of a human body, the comfort and adaptability are improved, the armrest conforms to ergonomics and is suitable for various scenes and postures, the adjusting range of the bearing piece is large, the requirements of more users can be met, and the armrest has the advantage of being low in cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of furniture, especially a dynamic handrail. BACKGROUND

[0002] In the field of seat design, the handrail as an important component to improve the comfort of the user, its connection mode and function implementation has been the research focus. The current common handrail connection mode is mainly divided into two kinds: one is to connect the handrail on the chair back, this connection mode makes the handrail can follow the reclining action of the chair back and synchronous movement, the user can naturally place the arm on the handrail when adjusting the chair back angle, always keep the comfortable support state, however, this connection mode usually involves relatively complex structure design and installation process, lead to its cost is relatively high, in some cost control is more strict application scene, its large-scale promotion is limited to a certain extent, the other is to connect the handrail on the chair seat, this way although has obvious advantage in production cost, can effectively reduce the overall manufacturing cost of seat, satisfy some price sensitive market demand, but due to the fixed connection of the handrail and the chair seat, when the chair back reclines, the handrail cannot follow the movement of the chair back and adjust the position accordingly, that is, the handrail and the elbow position of the user do not match, especially when the user reclines the chair back greatly, the arm often loses the appropriate support point, has no place to put, seriously affected the user's use experience. Therefore, under the current technical background, it is urgent to develop a new type of handrail design scheme, which can meet the low-cost production requirements and realize the function of dynamic adjustment of the handrail position with the reclining of the chair back. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a dynamic handrail, including support seat, lifting seat, rotating part and supporting part, each component is arranged from top to bottom in turn, the support seat is used for connecting the chair seat, the supporting part is used for supporting the arm. The lifting seat and the support seat have lifting control assembly to realize self-circulation lifting, which can drive the rotating part and the supporting part to lift, the rotating part can be transversely rotated and drive the supporting part, and the supporting part can also be transversely and vertically rotated relative to the rotating part. The handrail can adjust multiple positions and shapes, can automatically adjust the lifting seat height, the rotating part angle and the supporting part two direction angle according to the human body posture, improve the comfort and adaptability, conform to the ergonomics, be applicable to multiple scenes and postures, and the adjusting range of the supporting part is large, can satisfy more user demand, and have the low-cost advantage.

[0004] The technical scheme of the utility model is realized as follows:

[0005] A dynamic armrest includes a support base, a lifting base, a rotating component, and a support component; the support base is configured as the main support and is used to connect with a chair seat; the support component is configured to support a human arm; the lifting base is lifted and lowered on the support base; one end of the rotating component is rotatably connected to the lifting base about a vertical axis, and the other end of the rotating component is provided with a rotating seat, which is rotatably connected to the rotating component about a vertical axis; the support component is tilted and rotated about a horizontal axis on the rotating seat; the support component, rotating seat, rotating component, lifting base, and support base are arranged sequentially from top to bottom; a lifting control component is provided between the lifting base and the main support base, and the lifting control component is configured to realize the self-circulating lifting and lowering of the lifting base on the support base.

[0006] The adjustable seat can raise and lower the rotating and supporting components together. When the rotating component rotates laterally, it moves the supporting component along with it. The supporting component can also rotate independently relative to the rotating component, both laterally and vertically. This dynamic armrest offers numerous adjustable positions and shapes, adapting to various human postures. Based on the user's posture, it can automatically adjust the height of the adjustable seat, the angle of the rotating component, and the angles of the supporting component in both directions. Ultimately, the supporting component adapts to the user's posture, changing to a more comfortable height, position, and tilt. This achieves cost savings while improving comfort and adaptability by connecting the armrest to the seat. The armrest is more ergonomic, accommodating various postures in different scenarios, such as working, resting, reading, and using a mobile phone. Especially when the user is reclining in the seat, the armrest can be adjusted to a suitable position and posture. The supporting component not only rotates laterally with the rotating component but also rotates laterally itself, allowing for a wider range of adjustments to meet the needs of more users.

[0007] Preferably, the rotating component is arranged horizontally. The armrest has an initial state in which the rear end of the rotating component is connected to the lifting seat, and the rotating seat is located at the front end of the rotating component; the rotating seat is located at the front center of the support component. In the initial state, the dynamic armrest is similar in shape to a conventional armrest and is used for arm support when sitting normally.

[0008] Preferably, a rotation control assembly is provided between the rotating base and the support member. The rotation control assembly includes a control member that is slidably disposed within the support member and rotates with it. The rotating base includes a first locking part located inside the support member. The control member includes a second locking part located inside the support member and beside the first locking part. The first and second locking parts selectively engage and lock. An elastic reset member is provided between the support member and the control member. The elastic reset member is configured to provide elastic force to the control member to engage and lock the first and second locking parts. The control member is configured to respond to pressure by moving the second locking part, causing the first and second locking parts to disengage. This achieves tilt and rotation control of the support member on the rotating base.

[0009] Preferably, the control element also includes a button protruding from the support member. A second locking portion is located on the control element at the end furthest from the button, and a first locking portion is located on the rotating seat at the end furthest from the button, with the first locking portion positioned between the second locking portion and the button. The protruding button facilitates pressing by the user. In the sliding direction of the control element, the second locking portion and the button are located at opposite ends of the control element, with the first locking portion positioned between the second locking portion and the button. Due to this positional relationship, when the button is pushed inward, the second locking portion can directly disengage from the first locking portion to release the lock.

[0010] Preferably, the control component includes a main body with a frame structure, in which a rotating seat is fitted. A button is located at either end of the main body and protrudes outward. A second locking part is located at the other end of the main body, with the button and the second locking part located on opposite sides of the rotating seat. The main body is a rectangular frame, and both the button and the second locking part are located on this frame. Therefore, the control component moves as a whole; when the button is pushed, the main body moves, and the second locking part on it also moves. No other transmission structure or parts are required, resulting in a simple structure and low cost. The control component is integrally molded. The base is fitted within the main body, thus placing the first locking part between the second locking part and the button. Pushing the button disengages the first locking part from the second locking part.

[0011] Preferably, elastic pins and several grooves are provided between the rotating component and the lifting seat, as well as between the rotating seat and the rotating component, to achieve rotational adjustment. This allows the rotating component and the rotating seat to maintain their current positions after rotation, and operation is not required by buttons or switches; simply rotating the rotating seat or support component is sufficient, making it more convenient. Since the lateral rotation requires less support capacity, no structural locking is needed, simplifying operation and reducing costs as much as possible.

[0012] Preferably, the lifting control assembly includes a lifting member connected to a lifting base, a latching member disposed on the lifting member, and a latching portion disposed on a support base. The lifting member is inserted into and slides vertically on the support base, while the latching member is rotatably disposed on the lifting member. The latching member and the latching portion are configured to selectively latch to maintain the relative position of the lifting member and the support base after sliding. An elastic member is also provided on the lifting member beside the latching member. The latching member includes a limiting protrusion, and the elastic member includes a pushing portion and a limiting portion. The limiting protrusion abuts against either the pushing portion or the limiting portion and selectively switches between the two. When the pushing portion is configured such that the limiting protrusion abuts against the pushing portion, the pushing portion provides elastic force for the latching member and the latching portion to latch. When the limiting portion is configured such that the limiting protrusion abuts against the limiting portion, the latching member and the latching portion remain disengaged to achieve self-circulation of the lifting member and the support base. This achieves self-circulating lifting control of the lifting base and the support base.

[0013] Preferably, the engaging part includes a support part, and the engaging component also includes a support protrusion. The support part has several slots. The engaging part is vertically arranged, and the slots are vertically arranged on the engaging part. The support protrusion is configured to engage with the slots in a one-way manner. When the support protrusion moves on the support part, the limiting protrusion abuts against the pushing part. The pushing part is configured to provide elastic force to the support protrusion toward the slot when the support protrusion moves away from the slot. When the limiting protrusion abuts against the limiting part, the support protrusion is kept disengaged from the slot. The engaging method between the support protrusion and the slot is simple in structure and easy to implement. Since the engaging component and the engaging part are engaged in a one-way manner, it means that when the lifting component moves relative to the support seat, it can move upward to achieve the adjustment effect, but cannot move downward to achieve the support effect. Furthermore, after adjustment, it still maintains a one-way engagement, allowing for continued upward adjustment while also providing one-way downward support.

[0014] Preferably, the engaging portion further includes a reset portion and a first limiting portion, with the reset portion and the first limiting portion located on opposite sides of the support portion along the length of the engaging portion; the engaging member also includes a second limiting portion; the first limiting portion and the second limiting portion are configured such that they abut against each other and drive the engaging member to rotate until the limiting protrusion abuts against the limiting portion, allowing the support protrusion to pass over the support portion and reach the reset portion; the reset portion is configured such that the support protrusion abuts against the reset portion and drives the engaging member to rotate, enabling the limiting protrusion to switch from the limiting portion to the pushing portion. The function of the first limiting portion and the second limiting portion allows the lifting member to move downwards, and the function of the support protrusion and the reset portion enables the support protrusion to reset and engage with the slot.

[0015] Preferably, the lifting seat includes a housing and a connecting seat disposed on the upper part of the housing and fixedly connected to the housing; the housing is sleeved on the support seat, a limiting member is fixedly connected above the connecting seat, and a rotating member is disposed between the connecting seat and the limiting member; the lifting member is fixedly connected below the connecting seat.

[0016] The design starting point, concept, and beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0017] The adjustable seat can raise and lower the rotating and supporting components together. When the rotating component rotates laterally, it moves the supporting component along with it. The supporting component can also rotate independently relative to the rotating component, both laterally and vertically. This dynamic armrest offers numerous adjustable positions and shapes, adapting to various human postures. Based on the user's posture, it can automatically adjust the height of the adjustable seat, the angle of the rotating component, and the angles of the supporting component in both directions. Ultimately, the supporting component adapts to the user's posture, changing to a more comfortable height, position, and tilt. This achieves cost savings while improving comfort and adaptability by connecting the armrest to the seat. The armrest is more ergonomic, accommodating various postures in different scenarios, such as working, resting, reading, and using a mobile phone. Especially when the user is reclining in the seat, the armrest can be adjusted to a suitable position and posture. The supporting component not only rotates laterally with the rotating component but also rotates laterally itself, allowing for a wider range of adjustments to meet the needs of more users. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the armrest installed on the seat in an embodiment of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the handrail in an embodiment of the present invention;

[0020] Figure 3 The explosion of the handrail in the embodiment of this utility model Figure 1 ;

[0021] Figure 4 The explosion of the handrail in the embodiment of this utility model Figure 2 ;

[0022] Figure 5 This is an exploded view of the support component in the embodiment of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the connection between the control component, the rotating seat, and the plate in an embodiment of the present invention;

[0024] Figure 7 This is a three-dimensional structural diagram of the control component in the embodiment of the present invention;

[0025] Figure 8 This is a three-dimensional structural diagram of the rotating seat in an embodiment of the present invention;

[0026] Figure 9 This is a three-dimensional structural diagram of the lifting control component in the handrail in an embodiment of the present invention;

[0027] Figure 10This is a three-dimensional structural diagram of the support base in an embodiment of the present invention;

[0028] Figure 11 This is a three-dimensional structural diagram of the present invention in which the snap-fit ​​component is disposed on the lifting component in an embodiment;

[0029] Figure 12 This is a three-dimensional structural diagram of the engagement of the snap-fit ​​component and the elastic component in an embodiment of the present invention.

[0030] The reference numerals in the attached drawings are as follows: support base 1; lifting base 2; outer shell 21; connecting base 22; limiting member 23; rotating member 3; rotating base 4; first locking part 41; gear slot 411; support member 5; soft pad 51; plate 52; control member 6; main body part 61; button 62; second locking part 63; gear slot 631; elastic reset member 7; elastic pin 8; groove 9; lifting member 10; snap-fit ​​member 11; limiting protrusion 111; support protrusion 112; second limiting part 113; snap-fit ​​part 12; support part 121; reset part 122; first limiting part 123; slot 13; elastic member 14; pushing part 141; limiting part 142. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0033] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] The specific implementation of this utility model is as follows:

[0035] like Figures 1-4As shown, this utility model provides a dynamic armrest, including a support base 1, a lifting base 2, a rotating component 3, and a support component 5; the support base 1 is configured as the main support and is used to connect with the chair seat; the support component 5 is configured to support the human arm; the lifting base 2 is lifted and lowered on the support base 1, one end of the rotating component 3 is rotatably connected to the lifting base 2 around a vertical axis, and the other end of the rotating component 3 is provided with a rotating seat 4, which is rotatably connected to the rotating component 3 around a vertical axis; the support component 5 is tilted and rotated around a horizontal axis on the rotating seat 4; the support component 5, the rotating seat 4, the rotating component 3, the lifting base 2, and the support base 1 are arranged sequentially from top to bottom; a lifting control component is provided between the lifting base 2 and the main support base 1, and the lifting control component is configured to realize the self-circulating lifting and lowering of the lifting base 2 on the support base 1.

[0036] The adjustable seat 2 can drive the rotating component 3 and the support component 5 to rise and fall together. When the rotating component 3 rotates laterally, it can drive the support component 5 to move together. The support component 5 can also rotate laterally and vertically relative to the rotating component 3. This dynamic armrest can be adjusted to many positions and can form more shapes, adapting to various human postures. That is, according to the human posture, it can automatically adjust the height of the adjustable seat 2, the angle of the rotating component 3, and the angles of the support component 5 in two directions. Ultimately, the support component 5 can adapt to the human posture and change to a more comfortable height, position, and tilt posture. This achieves cost savings while improving comfort and adaptability when the armrest is connected to the seat. This armrest is more ergonomic and adapts to various human postures in various scenarios, such as working, resting, reading, and using a mobile phone. Especially when the human body is reclining in the seat, the armrest can also be adjusted to a suitable position and posture. The support component 5 can not only rotate laterally with the rotating component 3, but can also rotate laterally equivalent to the rotating component 3, making the support component 5 reach a wider range, thereby achieving a wider range of adjustments to meet the needs of more users.

[0037] The rotating component 3 is arranged horizontally and rotates horizontally on the lifting seat 2. The armrest has an initial state in which the rear end of the rotating component 3 is connected to the lifting seat 2 and the rotating seat 4 is located at the front end of the rotating component 3. The rotating seat 4 is located at the front middle of the support component 5. In the initial state, the dynamic armrest is similar in shape to the traditional armrest and is used to support the arm when sitting normally. The dynamic armrest can rotate and rise in multiple dimensions from the initial state to achieve different postures to support the arm in different human postures.

[0038] like Figure 4 , 5As shown, elastic pins 8 and several grooves 9 are provided between the rotating component 3 and the lifting seat 2, and between the rotating seat 4 and the rotating component 3, to achieve rotational adjustment. The grooves 9 are all circular and evenly distributed. There are two elastic pins 8 at each position to achieve more stable adjustment and maintain the position after rotation. Specifically, between the rotating seat 4 and the rotating component 3, the elastic pins 8 are set on the rotating component 3, and the grooves 9 are opened on the lower end face of the rotating seat 4; between the rotating component 3 and the lifting seat 2, the elastic pins 8 are set on the rotating component 3, and the grooves 9 are opened on the lifting seat 2. This allows the rotating component 3 and the rotating seat 4 to maintain their current position after rotation, and no buttons or switches are required for operation. The rotating seat 4 or the support component 5 can be rotated directly, which is more convenient. Since the requirement for support capacity for lateral rotation is small, there is no need for structural locking, which simplifies the operation and reduces costs as much as possible.

[0039] Furthermore, such as Figures 4-8 As shown, a rotation control assembly is provided between the rotating seat 4 and the support member 5. The rotation control assembly includes a control member 6, which is slidably disposed in the support member 5 and rotates together with the support member 5. The rotating seat 4 includes a first locking part 41 located inside the support member 5. The control member 6 includes a second locking part 63 located inside the support member 5 and beside the first locking part 41. The first locking part 41 and the second locking part 63 selectively engage and lock. An elastic reset member 7 is provided between the support member 5 and the control member 6. The elastic reset member 7 is configured to provide elastic force to the control member 6 so that the first locking part 41 and the second locking part 63 engage and lock. The control member 6 is configured to respond to a press... The pressure causes the second locking part 63 to move, causing the first locking part 41 to disengage from the second locking part 63; thereby realizing the tilting and rotation control of the support member 5 on the rotating seat 4; the first locking part 41 has three position slots 411, and the second locking part 63 has a protruding position member 631. The position member 631 can selectively enter any one of the position slots 411 to realize the adjustment of the tilting angle of the support member 5; the support member 5 includes a soft pad 51 and a plate 52. The soft pad 51 covers the plate 52. The control member 6 is set in the plate 52. The rotating seat 4 and the plate 52 are rotatably connected by a rotating shaft. The plate 52 has a slot for the control member 6 to slide and a slot for the elastic reset member 7.

[0040] The control member 6 also includes a button 62, which protrudes from the support member 5. The second locking part 63 is located on the control member 6 at the end away from the button 62, and the first locking part 41 is located on the rotating seat 4 at the end away from the button 62, and the first locking part 41 is located between the second locking part 63 and the button 62. The protruding button 62 is convenient for the user to press. In the sliding direction of the control member 6, the second locking part 63 and the button 62 are located at the two ends of the control member 6, and the first locking part 41 is located between the second locking part 63 and the button 62. Due to this positional relationship, when the button 62 is pushed inward, the second locking part 63 can directly move away from the first locking part 41 to disengage from the lock.

[0041] More specifically, the control component 6 includes a main body 61, which is a rectangular frame structure, and the rotating seat 4 is fitted inside the main body 61. The button 62 is located at either end of the left or right end of the main body 61 and protrudes outward from the main body 61. The second locking part 63 is located at the other end of the main body 61. The button 62 and the second locking part 63 are respectively located on both sides of the rotating seat 4. The main body 61 is a rectangular frame, and the button 62 and the second locking part 63 are both located on this frame-like main body 61. Therefore, the control component 6 moves as a whole. When the button 62 is pushed, the main body 61 moves together, and the second locking part 63 on it also moves together. No other transmission structure or parts are required, and the structure is simple and low in cost. The control component 6 is integrally formed. The base is fitted inside the main body 61, so that the first locking part 41 is located between the second locking part 63 and the button 62. When the button 62 is pushed, the first locking part 41 can be disengaged from the second locking part 63.

[0042] Furthermore, such as Figures 9-12 As shown, the lifting control assembly includes a lifting member 10 connected to the lifting base 2, a snap-fit ​​member 11 disposed on the lifting member 10, and a snap-fit ​​portion 12 disposed on the support base 1. The lifting member 10 is inserted into and slides up and down on the support base 1, and the snap-fit ​​member 11 is rotatably disposed on the lifting member 10. The snap-fit ​​member 11 and the snap-fit ​​portion 12 are configured to selectively snap-fit ​​to maintain the relative position of the lifting member 10 and the support base 1 after sliding. An elastic member 14 is also provided on the lifting member 10 beside the snap-fit ​​member 11. The snap-fit ​​member 11 includes a limiting protrusion 111, and the elastic member 14 includes... The pushing part 141 and the limiting part 142, the limiting protrusion 111 abuts against the pushing part 141 or the limiting part 142 and can selectively switch between the two; when the pushing part 141 is configured such that the limiting protrusion 111 abuts against the pushing part 141, the pushing part 141 provides a spring force for the locking member 11 and the locking part 12 to engage; when the limiting part 142 is configured such that the limiting protrusion 111 abuts against the limiting part 142, the locking member 11 and the locking part 12 remain disengaged to achieve self-circulation of the lifting member 10 and the support base 1; thereby achieving self-circulation lifting control of the lifting base 2 and the support base 1.

[0043] The engaging portion 12 includes a support portion 121, and the engaging member 11 also includes a support protrusion 112. The support portion 121 has a plurality of slots 13. The engaging portion 12 is vertically arranged, and the slots 13 are vertically arranged on the engaging portion 12. The support protrusion 112 is configured to engage with the slots 13 in a one-way manner. When the support protrusion 112 moves on the support portion 121, the limiting protrusion 111 abuts against the pushing portion 141. The pushing portion 141 is configured to push the support protrusion 112 toward the slots 13 when the support protrusion 112 moves away from the slots 13. The elasticity of 3; when the limiting protrusion 111 abuts against the limiting part 142, the supporting protrusion 112 is kept always disengaged from the slot 13; the way the supporting protrusion 112 and the slot 13 are engaged is simple in structure and easy to implement; since the engaging part 11 and the engaging part 12 are engaged in one direction, it means that when the lifting part 10 and the support seat 1 move relative to each other, it can move upward to achieve the adjustment effect, and cannot move downward to achieve the support effect. Moreover, after adjustment, it still maintains the one-way engagement, and can continue to adjust upward while also achieving one-way support downward.

[0044] The latching part 12 also includes a reset part 122 and a first limiting part 123. In the length direction of the latching part 12, the reset part 122 and the first limiting part 123 are respectively located on both sides of the support part 121. The latching member 11 also includes a second limiting part 113. The first limiting part 123 and the second limiting part 113 are configured such that when they abut against each other and drive the latching member 11 to rotate, the supporting protrusion 112 can pass over the support part 121 to reach the reset part 122 when the limiting protrusion 111 abuts against the limiting part 142. The reset part 122 is configured such that the supporting protrusion 112 abuts against the reset part 122 and drives the latching member 11 to rotate, which can switch the limiting protrusion 111 from the limiting part 142 to the pushing part 141. The function of the first limiting part 123 and the second limiting part 113 enables the lifting member 10 to move downward, and the function of the supporting protrusion 112 and the reset part 122 enables the supporting protrusion 112 to reset and latch against the slot 13.

[0045] The lifting seat 2 includes a housing 21 and a connecting seat 22 disposed on the upper part of the housing 21 and fixedly connected to the housing 21. The housing 21 is sleeved on the support seat 1. A limiting member 23 is fixedly connected above the connecting seat 22. A rotating member 3 is disposed between the connecting seat 22 and the limiting member 23. The lifting member 10 is fixedly connected below the connecting seat 22. A groove 9 for the lateral rotation of the rotating member 3 is formed on the limiting member 23. The housing 21 is hollow and has a through-hole structure. The housing 21 is sleeved on the connecting seat 22 and fixedly connected to the connecting seat 22 by screws.

[0046] In this embodiment, only the tilting and rotation of the support 5 requires the use of a switch, while other adjustments can be made by simply pulling or toggling by hand. This not only reduces costs and makes the device highly adaptable, but also makes it easy to operate and use by consumers.

Claims

1. A dynamic handrail characterized by: The armrest comprises a support base, a lifting base, a rotating member and a supporting member. The support base is configured to support a main body and is connected to a seat. The supporting member is configured to support a human arm. The lifting base is arranged on the support base and is vertically rotatable relative to the support base. One end of the rotating member is connected to the lifting base, and the other end of the rotating member is provided with a rotating seat. The rotating seat is rotatably connected to the rotating member. The supporting member is arranged on the rotating seat and is horizontally rotatable relative to the rotating seat. The supporting member, the rotating seat, the rotating member, the lifting base and the support base are arranged in sequence from top to bottom. A lifting control assembly is arranged between the lifting base and the support base. The lifting control assembly is configured to enable the lifting base to be lifted and lowered on the support base in a self-circulating manner.

2. Dynamic handrail according to claim 1, characterized in that: The rotating member is horizontally arranged. The armrest has an initial state. In the initial state, the rear end of the rotating member is connected to the lifting base, and the rotating seat is located at the front end of the rotating member. The rotating seat is located at the front middle part of the supporting member.

3. The dynamic handrail of claim 1, wherein: A rotating control assembly is arranged between the rotating seat and the supporting member. The rotating control assembly comprises a control member. The control member is slidably arranged in the supporting member and rotates with the supporting member. The rotating seat comprises a first locking portion. The first locking portion is located inside the supporting member. The control member comprises a second locking portion. The second locking portion is located inside the supporting member and is located beside the first locking portion. The first locking portion and the second locking portion are selectively inserted and locked. An elastic reset member is arranged between the supporting member and the control member. The elastic reset member is configured to provide an elastic force to the control member to enable the first locking portion and the second locking portion to be inserted and locked. The control member is configured to move the second locking portion in response to a pressing force, so that the first locking portion and the second locking portion are disengaged.

4. A dynamic handrail according to claim 3, characterized in that: The control member further comprises a button. The button is exposed to the supporting member. The second locking portion is located at the end of the control member away from the button. The first locking portion is located at the end of the rotating seat away from the button. The first locking portion is located between the second locking portion and the button.

5. A dynamic handrail according to claim 4, characterized in that: The control member comprises a main body portion. The main body portion has a frame structure. The main body portion sleeves the rotating seat. The button is located at any one of the left and right end portions of the main body portion and protrudes outwardly from the main body portion. The second locking portion is located at the other end portion of the main body portion. The button and the second locking portion are located on the two sides of the rotating seat, respectively.

6. The dynamic handrail of claim 1, wherein: Elastic pins and grooves are arranged between the rotating member and the lifting base and between the rotating seat and the rotating member to enable rotation adjustment.

7. The dynamic handrail of claim 1, wherein: The lifting control assembly comprises a lifting member connected to the lifting base, a clamping member arranged on the lifting member and a clamping portion arranged on the support base. The lifting member is inserted and arranged on the support base and slides up and down. The clamping member is rotatably arranged on the lifting member. The clamping member and the clamping portion are selectively clamped to maintain the relative position of the lifting member and the support base after sliding. An elastic member is further arranged on the lifting member beside the clamping member. The clamping member comprises a limiting protrusion. The elastic member comprises a pushing portion and a limiting portion. The limiting protrusion and the pushing portion or the limiting portion are in abutment and are selectively switched thereon. The pushing portion is configured to provide an elastic force to the clamping member and the clamping portion when the limiting protrusion and the pushing portion are in abutment. The limiting portion is configured to keep the clamping member and the clamping portion disengaged to enable the lifting member and the support base to be self-circulated when the limiting protrusion and the limiting portion are in abutment.

8. A dynamic handrail according to claim 7, characterized in that: The clamping part comprises a supporting part, and the clamping piece further comprises a supporting protrusion, a plurality of clamping grooves are arranged on the supporting part, the clamping part is vertically arranged, the clamping grooves are vertically arranged on the clamping part, and the supporting protrusion is configured to be one-way clamped with the clamping grooves; when the supporting protrusion moves on the supporting part, the limiting protrusion abuts against the pushing part, the pushing part is configured to give the supporting protrusion an elastic force towards the clamping grooves when the supporting protrusion moves away from the clamping grooves, and the limiting protrusion abuts against the limiting part, so that the supporting protrusion is kept away from the clamping grooves.

9. A dynamic handrail according to claim 8, characterized in that: The clamping part further comprises a reset part and a first limiting part, and the reset part and the first limiting part are respectively located on two sides of the supporting part in the length direction of the clamping part; the clamping piece further comprises a second limiting part; the first limiting part and the second limiting part are configured to abut against each other and drive the clamping piece to rotate to the state that the limiting protrusion abuts against the limiting part, so that the supporting protrusion can pass through the supporting part to reach the reset part; the reset part is configured to abut against the supporting protrusion and drive the clamping piece to rotate, so that the limiting protrusion can be switched from the limiting part to the pushing part.

10. The dynamic handrail of claim 7, wherein: The lifting seat comprises a shell and a connecting seat arranged on the upper part of the shell and fixedly connected with the shell; the shell is sleeved on the supporting seat, a limiting piece is fixedly connected above the connecting seat, and a rotating piece is arranged between the connecting seat and the limiting piece; the lifting piece is fixedly connected below the connecting seat.

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