Side turning handrail structure
By designing a side-tilting handrail structure, the problems of jamming and abnormal noise when the car handrail is flipped are solved by using a fixed pulley assembly and a mis-opening limit assembly, thus achieving convenient and safe handrail operation.
Patent Information
- Application Number
- CN202422920101.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing car grab bars have limited functionality in terms of opening structure, which cannot meet personalized needs, and are prone to jamming and abnormal noise when tilting or flipping.
A side-flipping handrail structure was designed, which enables the handrail cover to flip flexibly through a fixed pulley assembly and a mis-opening limit assembly to prevent simultaneous derailment. A labyrinth structure and labyrinth locking components are used to avoid jamming and abnormal noise at the flipping critical point.
It reduces the risk of jamming and abnormal noise at the tipping point, improves ease of operation and safety, prevents the left and right sides of the handrail cover from derailing simultaneously, and has a simple and convenient structure.
Smart Images
Figure CN223494363U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to automobile handrails, and more particularly to a side-flipping handrail structure. Background Technology
[0002] Currently, most car grab bars on the market only offer basic support functions, lacking in functionality and innovation. Their opening mechanisms are also relatively simple, failing to meet the demand for personalized and multifunctional grab bars. The typical opening method is forward and backward flipping, with side-flipping grab bars being less common. Due to their complex structure, existing side-flipping grab bars on the market often experience jamming at the flipping point and abnormal noises. Utility Model Content
[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a side-tipping handrail structure. This structure is simple, easy to operate, and greatly reduces the risk of jamming and abnormal noise at the tipping point.
[0004] The objective of this utility model can be achieved through the following technical solutions:
[0005] A side-tipping handrail structure, comprising:
[0006] The base has two bases at its front and rear ends;
[0007] The armrest cover, located above the base and capable of rotating around the left or right side of the base, includes a lower armrest cover, two armrest cover shafts installed at the front and rear ends of the lower armrest cover, and an upper armrest cover located above the lower armrest cover and fixedly connected to the two armrest cover shafts.
[0008] Two sets of pin assemblies are provided at the front and rear ends of the lower cover of the armrest cover. Each set of pin assemblies includes two sets of pin units located on the left and right sides of the armrest cover shaft. Each set of pin units includes a pin seat and a locking pin that can move in the front and rear direction and lock or release the armrest cover shaft and the base.
[0009] Two sets of activation components are symmetrically distributed on the left and right sides of the lower cover of the armrest cover. Each set of activation components includes two moving blocks that can move synchronously in the left and right directions.
[0010] And four sets of fixed pulley assemblies are arranged between each set of pin units and the moving block to drive them.
[0011] The working principle of this tilting handrail structure is as follows:
[0012] 1. Flipping from left to right: When the button located on the left side of the lower cover of the armrest is pressed, the fixed pulley assembly drives the two sets of pin units located at the front and rear ends of the left side of the lower cover of the armrest to move back and forth away from the armrest cover shaft and base, thereby unlocking the armrest cover shaft and base located on the left side of the lower cover of the armrest, allowing the armrest cover to flip from left to right;
[0013] 2. Flipping from right to left: When the button located on the right side of the lower cover of the armrest is pressed, the fixed pulley assembly drives the two sets of pin units located at the front and rear ends of the right side of the lower cover of the armrest to move back and forth away from the armrest cover shaft and base, thereby unlocking the armrest cover shaft and base located on the right side of the lower cover of the armrest, allowing the armrest cover to flip from right to left.
[0014] Furthermore, to prevent the other moving block from moving after one side moves, thus preventing the armrest cover shafts on both the left and right sides of the lower cover from simultaneously unlocking from the base and avoiding simultaneous derailment of the left and right sides of the armrest cover, a mis-opening limit component is provided between the two sets of starting components. This mis-opening limit component is configured such that when two moving blocks located on the left or right side of the lower cover move laterally to abut against the mis-opening limit component, the two moving blocks on the other side are restricted from moving laterally.
[0015] Furthermore, the moving block is divided into a left moving block and a right moving block arranged opposite to each other, and the left moving block and the right moving block are each provided with two side by side connected as one unit;
[0016] The erroneous opening limit assembly includes an erroneous opening limit block having a degree of freedom to move in the forward and backward direction and located between the left moving block and the right moving block. The erroneous opening limit block cannot move in the left and right directions.
[0017] The mis-opening limiting block is provided with a first notch and a second notch at the two corner regions along the diagonal line, respectively, facing the left moving block and the right moving block.
[0018] The corner region of the mis-opening limiting block opposite to the first notch is provided with a first guide slope facing the right moving block, and one of the right moving blocks has a second guide slope that matches the first guide slope.
[0019] Furthermore, the erroneously opened limit block is set as follows:
[0020] When the left moving block moves to the right until one of the left moving blocks abuts against the first notch, the first guide slope abuts against the right moving block with the second guide slope, and the right moving block is restricted from moving to the left by the mis-opening limit block;
[0021] When the right moving block moves to the left until the second guide slope of one of the right moving blocks is in close contact with the first guide slope, it drives the mis-opening limiting block to move forward and backward until another right moving block abuts against the second notch. One of the left moving blocks abuts against the corner area opposite to the mis-opening limiting block and the second notch. The left moving block is restricted by the mis-opening limiting block and cannot move to the right.
[0022] Furthermore, the mis-opening limiting block is provided with guide grooves distributed along the front-to-back direction. The mis-opening limiting assembly also includes a fixing post fixed to the lower cover of the armrest cover and slidably connected to the guide grooves, a first fixing block located on one side of the mis-opening limiting block, and a first reset elastic member connecting the mis-opening limiting block and the first fixing block. The first reset elastic member serves as a buffer and reset element.
[0023] Furthermore, the first reset elastic element is a reset spring.
[0024] Furthermore, the working principle of the erroneous opening limit component is as follows:
[0025] Under normal conditions, the left moving block does not contact the mis-opening limit block, while the right moving block with the second guide slope is in close contact with the first guide slope of the mis-opening limit block, and the fixing post is located at the end of the guide groove away from the first guide slope.
[0026] When the left moving block moves to the right until one of the left moving blocks abuts against the first notch, and the other left moving block is located outside the mis-opening limiting block, its travel is synchronously limited; the first guide slope abuts against the right moving block with the second guide slope, and the right moving block is restricted by the mis-opening limiting block from moving to the left. At this time, the fixed post is located at the end of the guide groove away from the first guide slope.
[0027] When the right moving block moves to the left until the second guide slope of one of the right moving blocks is in close contact with the first guide slope, due to the inclination of the first guide slope, the leftward movement of the right moving block will cause the mis-opening limiting block to move forward and backward until the other right moving block abuts against the second notch. At this time, one of the left moving blocks abuts against the corner area opposite to the mis-opening limiting block and the second notch, and the left moving block is restricted by the mis-opening limiting block and cannot move to the right. At this time, the fixing post is located at the end of the guide groove near the first guide slope.
[0028] Furthermore, each set of startup components also includes:
[0029] A button located on the side of the lower cover of the armrest;
[0030] The connector that connects the button and the two moving blocks has a labyrinth lock on its upper surface.
[0031] A second fixed block is positioned between the two moving blocks;
[0032] And a second reset elastic element that connects the second fixing block and the connector, wherein the second reset elastic element serves to buffer and reset.
[0033] Furthermore, the second reset elastic element is a reset spring.
[0034] Furthermore, the side-tipping handrail structure also includes a lower cover bracket located between the lower cover and the upper cover of the handrail cover; the lower cover bracket is provided with a button bracket located above the connector, and the lower surface of the button bracket is provided with a maze structure for the sliding of the maze locking member;
[0035] The maze structure is configured such that when the button is pressed, the moving block moves to its furthest point to the left or right; when the button is pressed again, the moving block returns to its original position.
[0036] Furthermore, the maze structure includes a first slide, a second slide, a locking island, and a guide island. The locking island and the guide island are located between the first slide and the second slide, and the guide island is located at one end of the first slide and the second slide. The other ends of the first slide and the second slide are connected to each other.
[0037] The maze lock is a raised triangular structure.
[0038] Furthermore, the working principle of the maze structure and maze locking device is as follows:
[0039] Assume the first slide is located at the front and the second slide is located at the rear. Initially, the maze lock is located at the connection between the first and second slides. When the button on the left side of the lower cover of the armrest is pressed, the button moves to the right, and the two left moving blocks connected by the connector move to the right. The maze lock moves along the first slide until it reaches the guide island at the end of the first slide. Releasing the button causes the maze lock to slide into the locking island under the action of the second reset spring. At this point, the travel of the left moving blocks is limited, and they will not move actively to the left or right. When the button on the left side of the lower cover of the armrest is pressed again, the button moves to the right, and the two left moving blocks connected by the connector continue to move to the right. The maze lock slides into the second slide due to the positional constraints of the guide island and the locking island. Releasing the button causes the maze lock to return to its original position under the action of the second reset spring. The same principle applies when pressing the button on the right side of the lower cover of the armrest.
[0040] Furthermore, after the maze structure and maze locking components are provided, when the button on the left side is pressed for the first time, the locking pin is in the unlocked state, and there is a certain gap between the left moving block and the mis-opening limit block. The width of this gap is used for the button to be pressed again, but this distance is insufficient to unlock the locking pin on the right side.
[0041] Furthermore, the width of this gap is the distance the maze lock moves from the locking island to the guide island.
[0042] Furthermore, each set of fixed pulleys includes:
[0043] Several fixed pulleys are located between the moving block and the locking pin;
[0044] And a pull rope connecting the movable block and the locking pin, and wound around the surface of the fixed pulley. Under the action of the fixed pulley, the pull rope changes the direction of the pulling force, thereby driving the locking pin to move back and forth.
[0045] Furthermore, a torsion spring is provided on the locking pin. When the two locking pins located on the left side of the lower armrest cover release the armrest cover shaft and base, the left side of the armrest cover is unlocked. Under the action of the torsion springs on the two locking pins located on the right side of the lower armrest cover, the armrest cover automatically flips to the right with the two locking pins on the right side of the lower armrest cover as the fixed axis of rotation. When the two locking pins located on the right side of the lower armrest cover release the armrest cover shaft and base, the right side of the armrest cover is unlocked. Under the action of the torsion springs on the two locking pins located on the left side of the lower armrest cover, the armrest cover automatically flips to the left with the two locking pins on the left side of the lower armrest cover as the fixed axis of rotation.
[0046] Furthermore, each set of pin units also includes a third reset spring for buffering and resetting. The third reset spring is a reset spring.
[0047] Compared with the prior art, the present invention has the following advantages:
[0048] (1) This utility model allows the movable block located on one side to move left and right by pressing a button, which in turn moves the pull rope. Through the transmission action of the fixed pulley, the locking pin moves forward and backward, causing the locking pin to release the armrest cover shaft and the base, thus unlocking the base and armrest cover. This allows the armrest cover to flip to the left or right, greatly reducing the risk of jamming or abnormal noise at the flipping critical point. Furthermore, its simple structure, convenient and flexible operation, and smooth movement enhance user convenience.
[0049] (2) By setting a mis-opening limit component between the left moving block and the right moving block, this utility model effectively prevents the armrest cover shafts on the left and right sides of the lower cover from unlocking from the base at the same time, thus avoiding the situation where the left and right sides of the armrest cover derail at the same time.
[0050] (3) The accidental opening limiting component of this utility model differs from the conventional accidental opening limiting component that moves in the same direction as the moving block. Its moving direction is perpendicular to the direction of the moving block. When the left moving block moves to the right, it can effectively avoid the pushing effect of the left moving block on the right moving block, reducing the risk of the right moving block malfunctioning. Furthermore, when the armrest cover flips to the right, pressing the right moving block at this time will not cause the right moving block to move due to excessive pressing force, thus unlocking the locking pin on the right side, effectively improving safety and preventing the left and right sides of the armrest cover from derailing simultaneously.
[0051] (4) By setting a maze structure and a maze locking component, this utility model can keep the locking pin in the unlocked state after pressing the button once, which can avoid bumping the base when the armrest cover is closed, and can effectively avoid the risk of jamming and abnormal noise at the flipping critical point. Attached Figure Description
[0052] Figure 1 This is a schematic diagram of the internal structure of the side-flipping handrail structure shown in this utility model;
[0053] Figure 2 This is a top view of the internal structure of the side-tilting handrail structure shown in this utility model;
[0054] Figure 3 This is an exploded view of the side-tipping handrail structure shown in this utility model;
[0055] Figure 4 This is a schematic diagram of the side-flipping handrail structure shown in this utility model flipping from left to right;
[0056] Figure 5 This is a schematic diagram of the side-flipping handrail structure shown in this utility model flipping from right to left.
[0057] Figure 6 This is a schematic diagram of the structure of the erroneous opening limit component shown in this utility model;
[0058] Figure 7 This is a schematic diagram of the structure of the starting component shown in this utility model;
[0059] Figure 8 This is a schematic diagram of the maze structure shown in this utility model, where dashed line A represents the movement trajectory of the maze locking member when the button is pressed for the first time, and dashed line B represents the movement trajectory of the maze locking member when the button is pressed for the second time.
[0060] Explanation of markings in the diagram:
[0061] 1-Base, 11-Ground;
[0062] 2-Starting component, 21-Button, 22-Moving block, 221-Left moving block, 222-Right moving block, 2221-Second guide ramp, 23-Connector, 231-Maze locking component, 24-Second fixing block, 25-Second reset spring component, 26-Button bracket, 27-Maze structure, 271-First slide, 272-Second slide, 273-Locking island, 274-Guide island;
[0063] 3-Pulley assembly, 31-Pulley, 32-Pull rope;
[0064] 4-Pin assembly, 41-Pin unit, 411-Pin seat, 412-Locking pin, 413-Torsion spring, 414-Third reset spring;
[0065] 5-Armrest cover, 51-Lower armrest cover, 52-Armrest cover shaft, 53-Upper armrest cover, 54-Lower cover bracket;
[0066] 6-Mistakenly opened limit component, 61-Fixing post, 62-Mistakenly opened limit block, 621-First notch, 622-Second notch, 623-First guide slope, 624-Guide groove, 63-First reset elastic element, 64-First fixing block. Detailed Implementation
[0067] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments. In the following embodiments or examples, unless otherwise specified, the functional components or structures are conventional components or structures used in the art to achieve the corresponding functions.
[0068] It should be noted that in the description of this utility model, the terms "front," "rear," "left," "right," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0069] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0070] A side-tipping handrail structure, comprising:
[0071] The base 1 has two bases 11 at its front and rear ends;
[0072] The armrest cover 5, located above the base 1 and capable of rotating around the left or right side of the base 11, includes a lower armrest cover 51, two armrest cover shafts 52 installed at the front and rear ends of the lower armrest cover 51, and an upper armrest cover 23 located above the lower armrest cover 51 and fixedly connected to the two armrest cover shafts 52.
[0073] Two sets of pin assemblies 4 are provided at the front and rear ends of the lower cover 51 of the armrest cover. Each set of pin assemblies 4 includes two sets of pin units 41 located on the left and right sides of the armrest cover shaft 51. Each set of pin units 41 includes a pin seat 411 and a locking pin 412 that can move in the front and rear direction and lock or release the armrest cover shaft 52 and the base 11.
[0074] Two sets of activation components 2 are symmetrically distributed on the left and right sides of the lower cover 51 of the armrest cover. Each set of activation components 2 includes two moving blocks 22 that can move synchronously in the left and right directions.
[0075] And four sets of fixed pulley assemblies 3 are arranged between each set of pin units 41 and the moving block 22 and are connected to it for transmission.
[0076] The working principle of this tilting handrail structure is as follows:
[0077] 1. Flipping from left to right: When the button 21 located on the left side of the lower cover 51 of the armrest cover is pressed, the fixed pulley assembly 3 drives the two sets of pin units 41 located at the front and rear ends on the left side of the lower cover 51 of the armrest cover to move back and forth away from the armrest cover shaft 52 and the base 11, thereby unlocking the armrest cover shaft 52 and the base 11 located on the left side of the lower cover 51 of the armrest cover, so that the armrest cover 5 can be flipped from left to right;
[0078] 2. Flipping from right to left: When the button 21 located on the right side of the lower cover 51 of the armrest cover is pressed, the fixed pulley assembly 3 drives the two sets of pin units 41 located at the front and rear ends of the right side of the lower cover 51 of the armrest cover to move back and forth away from the armrest cover shaft 52 and the base 11, thereby unlocking the armrest cover shaft 52 and the base 11 located on the right side of the lower cover 51 of the armrest cover, allowing the armrest cover 5 to flip from right to left.
[0079] In some specific embodiments, to prevent the other moving block 22 from moving after one moving block 22 moves, and to prevent the armrest cover shafts 52 on the left and right sides of the lower cover 51 from simultaneously unlocking from the base 11, thus avoiding the situation where the left and right sides of the armrest cover 5 derail simultaneously, a mis-opening limiting component 6 is provided between the two sets of starting components 2. The mis-opening limiting component 6 is configured such that when the two moving blocks 22 located on the left or right side of the lower cover 7 move in the left-right direction to abut against the mis-opening limiting component 6, the two moving blocks 22 on the other side are restricted from moving in the left-right direction.
[0080] In some specific embodiments, the movable block 22 is divided into a left movable block 221 and a right movable block 222 arranged opposite to each other, and the left movable block 221 and the right movable block 222 are respectively provided in two side by side connected as one unit;
[0081] The erroneous opening limiting component 6 includes an erroneous opening limiting block 62 with a degree of freedom to move in the forward and backward direction and located between the left moving block 221 and the right moving block 222. The erroneous opening limiting block 62 cannot move in the left and right directions.
[0082] The mis-opening limiting block 62 is provided with a first notch 621 and a second notch 622 facing the left moving block 221 and the right moving block 222 respectively at the two end corners along the diagonal line;
[0083] The corner region of the mis-opening limiting block 62 opposite to the first notch 621 is provided with a first guide slope 623 facing the right moving block 22, and one of the right moving blocks 222 has a second guide slope 2221 that matches the first guide slope 623.
[0084] In some specific embodiments, the erroneously opened limit block 62 is configured as follows:
[0085] When the left moving block 221 moves to the right until one of the left moving blocks 221 abuts against the first notch 621, the first guide slope 623 abuts against the right moving block 222 with the second guide slope 2221, and the right moving block 222 is restricted from moving to the left by the mis-opening limit block 62.
[0086] When the right moving block 222 moves to the left until the second guide slope 2221 of one of the right moving blocks 222 is in close contact with the first guide slope 623, it drives the mis-opening limiting block 62 to move forward and backward until the other right moving block 222 abuts against the second notch 622. One of the left moving blocks 221 abuts against the corner area opposite to the mis-opening limiting block 62 and the second notch 622. The left moving block 221 is restricted by the mis-opening limiting block 62 and cannot move to the right.
[0087] In some specific embodiments, the mis-opening limiting block 62 is provided with a guide groove 624 distributed along the front-back direction. The mis-opening limiting component 6 also includes a fixing post 61 fixed to the lower cover 51 of the armrest cover and slidably connected to the guide groove 624, a first fixing block 64 located on one side of the mis-opening limiting block 62, and a first reset elastic member 63 connecting the mis-opening limiting block 62 and the first fixing block 64. The first reset elastic member 63 serves as a buffer and reset element.
[0088] In some specific embodiments, the first reset elastic element 63 is a reset spring.
[0089] In some specific implementations, the working principle of the erroneous opening limit component 6 is as follows:
[0090] Under normal conditions, the left moving block 221 does not contact the mis-opening limiting block 62, while the right moving block 222 with the second guide slope 2221 is in close contact with the first guide slope 623 of the mis-opening limiting block 62, and the fixing post 61 is located at the end of the guide groove 624 away from the first guide slope 623.
[0091] When the left moving block 221 moves to the right until one of the left moving blocks 221 abuts against the first notch 621, and the other left moving block 221 is located outside the mis-opening limiting block 62, its travel is synchronously limited; the first guide slope 623 abuts against the right moving block 222 with the second guide slope 2221, and the right moving block 222 is restricted from moving to the left by the mis-opening limiting block 62. At this time, the fixing post 61 is located at the end of the guide groove 624 away from the first guide slope 623.
[0092] When the right moving block 222 moves to the left until the second guide slope 2221 of one of the right moving blocks 222 is in close contact with the first guide slope 623, due to the inclination of the first guide slope 623, the leftward movement of the right moving block 222 will cause the mis-opening limiting block 62 to move forward and backward until the other right moving block 222 abuts against the second notch 622. At this time, one of the left moving blocks 221 abuts against the corner area opposite to the mis-opening limiting block 62 and the second notch 622, and the left moving block 221 is restricted by the mis-opening limiting block 62 and cannot move to the right. At this time, the fixing post 61 is located at the end of the guide groove 624 near the first guide slope 623.
[0093] In some specific implementations, each set of startup components 2 further includes:
[0094] Button 21 located on the side of the lower cover 51 of the armrest cover;
[0095] A connector 23 that connects the button 21 and the two moving blocks 22 has a labyrinth lock 231 on its upper surface;
[0096] A second fixed block 24 is positioned between the two movable blocks 22;
[0097] And a second reset elastic member 25 connecting the second fixing block 24 and the connector 23, wherein the second reset elastic member 25 serves to buffer and reset.
[0098] In some specific embodiments, the second reset elastic element 25 is a reset spring.
[0099] In some specific embodiments, the tilting handrail structure further includes a lower cover bracket 54 located between the lower cover 51 and the upper cover 53 of the handrail cover; the lower cover bracket 54 is provided with a button bracket 26 located above the connector 23, and the lower surface of the button bracket 26 is provided with a maze structure 27 for the maze locking member 231 to slide.
[0100] The maze structure 27 is configured such that when the button 21 is pressed, the moving block 22 moves to the furthest point in the left or right direction; when the button 21 is pressed again, the moving block 22 returns to its original position.
[0101] In some specific embodiments, the maze structure 27 includes a first slide 271, a second slide 272, a locking island 273, and a guide island 274. The locking island 273 and the guide island 274 are located between the first slide 271 and the second slide 272. The guide island 274 is located at one end of the first slide 271 and the second slide 272. The other ends of the first slide 271 and the second slide 272 are connected to each other.
[0102] The maze locking component 231 has a raised triangular structure.
[0103] In some specific embodiments, the working principle of the maze structure 27 and the maze locking element 231 is as follows:
[0104] Assume the first slide 271 is located at the front and the second slide 272 is located at the rear. Initially, the maze lock 231 is located at the connection point between the first slide 271 and the second slide 272. When the button 21 located on the left side of the armrest cover 51 is pressed, the button 21 moves to the right, and the two left moving blocks 221 connected by the connector 23 move to the right. The maze lock 231 moves along the first slide 271, reaching the guide island 274 at the end of the first slide 271. Releasing the button 21 causes the maze lock 231 to slide into the locking island 273 under the action of the second reset spring 25. At this time, the travel of the left moving block 221 is limited, and it will not move actively in the left or right direction. When the button 21 located on the left side of the lower cover 51 of the armrest is pressed again, the button 21 moves to the right. The two left moving blocks 221 connected by the connector 23 continue to move to the right. The maze lock 231 slides into the second slide rail 272 due to the restriction of the positions of the guide island 274 and the locking island 273. When the button 21 is released, the maze lock 231 returns to its original position under the action of the second reset spring 25. The same principle applies when the button 21 located on the right side of the lower cover 51 of the armrest is pressed.
[0105] In some specific embodiments, after the maze structure 27 and the maze locking member 231 are provided, when the left button 21 is pressed for the first time, the locking pin 412 is in the unlocked state, and there is a certain gap between the left moving block 221 and the mis-opening limit block 62. The width of the gap is used for the button 21 to be pressed again, but the distance is not enough to unlock the right locking pin 412.
[0106] In some specific embodiments, the width of the gap is the distance that the maze lock 231 moves from the locking island 273 to the guide island 274.
[0107] In some specific embodiments, each set of fixed pulley assemblies 3 includes:
[0108] A plurality of fixed pulleys 31 are located between the movable block 22 and the locking pin 412;
[0109] And a pull rope 32 connecting the movable block 22 and the locking pin 412, and wound around the surface of the fixed pulley 31. Under the action of the fixed pulley 31, the pull rope 32 changes the direction of the pulling force, thereby driving the locking pin 412 to move back and forth.
[0110] In some specific embodiments, a torsion spring 413 is provided on the locking pin 412. When the two locking pins 412 located on the left side of the lower armrest cover 51 release the armrest cover shaft 52 and the base 11, the left side of the armrest cover 5 is unlocked. Under the action of the torsion spring 413 on the two locking pins 412 located on the right side of the lower armrest cover 51, the armrest cover 5 automatically flips to the right with the two locking pins 412 on the right side of the lower armrest cover 51 as the fixed axis of rotation. When the two locking pins 412 located on the right side of the lower armrest cover 51 release the armrest cover shaft 52 and the base 11, the right side of the armrest cover 5 is unlocked. Under the action of the torsion spring 413 on the two locking pins 412 located on the left side of the lower armrest cover 51, the armrest cover 5 automatically flips to the left with the two locking pins 412 on the left side of the lower armrest cover 51 as the fixed axis of rotation.
[0111] In some specific embodiments, each set of pin units 41 further includes a third reset spring 414 for buffering and resetting. The third reset spring 414 is a reset spring.
[0112] Example 1
[0113] A type of tilting handrail structure, such as Figures 1-3 As shown, it includes:
[0114] The base 1 has two bases 11 at its front and rear ends;
[0115] The armrest cover 5, located above the base 1 and capable of rotating around the left or right side of the base 11, includes a lower armrest cover 51, two armrest cover shafts 52 installed at the front and rear ends of the lower armrest cover 51, and an upper armrest cover 23 located above the lower armrest cover 51 and fixedly connected to the two armrest cover shafts 52.
[0116] Two sets of pin assemblies 4 are provided at the front and rear ends of the lower cover 51 of the armrest cover. Each set of pin assemblies 4 includes two sets of pin units 41 located on the left and right sides of the armrest cover shaft 51. Each set of pin units 41 includes a pin seat 411 and a locking pin 412 that can move in the front and rear direction and lock or release the armrest cover shaft 52 and the base 11.
[0117] Two sets of activation components 2 are symmetrically distributed on the left and right sides of the lower cover 51 of the armrest cover. Each set of activation components 2 includes two moving blocks 22 that can move synchronously in the left and right directions.
[0118] And four sets of fixed pulley assemblies 3 are arranged between each set of pin units 41 and the moving block 22 and are connected to it for transmission.
[0119] The working principle of this tilting handrail structure is as follows:
[0120] 1. For example Figure 4 As shown, the armrest cover 51 flips from left to right: When the button 21 located on the left side of the armrest cover 51 is pressed, the fixed pulley assembly 3 drives the two sets of pin units 41 located at the front and rear ends on the left side of the armrest cover 51 to move back and forth away from the armrest cover shaft 52 and the base 11, thereby unlocking the armrest cover shaft 52 and the base 11 located on the left side of the armrest cover 51, allowing the armrest cover 5 to flip from left to right.
[0121] 2. For example Figure 5 As shown, the armrest cover 51 flips from right to left: When the button 21 located on the right side of the armrest cover 51 is pressed, the fixed pulley assembly 3 drives the two sets of pin units 41 located at the front and rear ends of the right side of the armrest cover 51 to move back and forth away from the armrest cover shaft 52 and the base 11, thereby unlocking the armrest cover shaft 52 and the base 11 located on the right side of the armrest cover 51, allowing the armrest cover 5 to flip from right to left.
[0122] Example 2
[0123] As an important component of the side-tipping handrail structure of this utility model, this embodiment provides an accidental opening limiting component 6, such as... Figure 6 As shown.
[0124] The erroneous opening limit component 6 is disposed between the two sets of the starting components 2. The erroneous opening limit component 6 is configured such that when the two moving blocks 22 located on the left or right side of the lower cover 7 move in the left or right direction to abut the erroneous opening limit component 6, the two moving blocks 22 on the other side are restricted from moving in the left or right direction.
[0125] In this embodiment, the moving block 22 is divided into a left moving block 221 and a right moving block 222 arranged opposite to each other, and the left moving block 221 and the right moving block 222 are respectively provided in two side by side connected as one unit;
[0126] The erroneous opening limiting component 6 includes an erroneous opening limiting block 62 with a degree of freedom to move in the forward and backward direction and located between the left moving block 221 and the right moving block 222. The erroneous opening limiting block 62 cannot move in the left and right directions.
[0127] The mis-opening limiting block 62 is provided with a first notch 621 and a second notch 622 facing the left moving block 221 and the right moving block 222 respectively at the two end corners along the diagonal line;
[0128] The corner region of the mis-opening limiting block 62 opposite to the first notch 621 is provided with a first guide slope 623 facing the right moving block 22, and one of the right moving blocks 222 has a second guide slope 2221 that matches the first guide slope 623.
[0129] In this embodiment, the erroneously opened limit block 62 is configured as follows:
[0130] When the left moving block 221 moves to the right until one of the left moving blocks 221 abuts against the first notch 621, the first guide slope 623 abuts against the right moving block 222 with the second guide slope 2221, and the right moving block 222 is restricted from moving to the left by the mis-opening limit block 62.
[0131] When the right moving block 222 moves to the left until the second guide slope 2221 of one of the right moving blocks 222 is in close contact with the first guide slope 623, it drives the mis-opening limiting block 62 to move forward and backward until the other right moving block 222 abuts against the second notch 622. One of the left moving blocks 221 abuts against the corner area opposite to the mis-opening limiting block 62 and the second notch 622. The left moving block 221 is restricted by the mis-opening limiting block 62 and cannot move to the right.
[0132] In this embodiment, the mis-opening limiting block 62 is provided with a guide groove 624 distributed along the front-back direction. The mis-opening limiting component 6 also includes a fixing post 61 fixed to the lower cover 51 of the armrest cover and slidably connected to the guide groove 624, a first fixing block 64 located on one side of the mis-opening limiting block 62, and a first reset elastic member 63 connecting the mis-opening limiting block 62 and the first fixing block 64. The first reset elastic member 63 serves as a buffer and reset element.
[0133] In this embodiment, the first reset elastic element 63 is a reset spring.
[0134] In this embodiment, the working principle of the erroneous opening limit component 6 is as follows:
[0135] Under normal conditions, the left moving block 221 does not contact the mis-opening limiting block 62, while the right moving block 222 with the second guide slope 2221 is in close contact with the first guide slope 623 of the mis-opening limiting block 62, and the fixing post 61 is located at the end of the guide groove 624 away from the first guide slope 623.
[0136] When the left moving block 221 moves to the right until one of the left moving blocks 221 abuts against the first notch 621, and the other left moving block 221 is located outside the mis-opening limiting block 62, its travel is synchronously limited; the first guide slope 623 abuts against the right moving block 222 with the second guide slope 2221, and the right moving block 222 is restricted from moving to the left by the mis-opening limiting block 62. At this time, the fixing post 61 is located at the end of the guide groove 624 away from the first guide slope 623.
[0137] When the right moving block 222 moves to the left until the second guide slope 2221 of one of the right moving blocks 222 is in close contact with the first guide slope 623, due to the inclination of the first guide slope 623, the leftward movement of the right moving block 222 will cause the mis-opening limiting block 62 to move forward and backward until the other right moving block 222 abuts against the second notch 622. At this time, one of the left moving blocks 221 abuts against the corner area opposite to the mis-opening limiting block 62 and the second notch 622, and the left moving block 221 is restricted by the mis-opening limiting block 62 and cannot move to the right. At this time, the fixing post 61 is located at the end of the guide groove 624 near the first guide slope 623.
[0138] Example 3
[0139] A type of tilting handrail structure, such as Figures 1-3 As shown, it includes:
[0140] The base 1 has two bases 11 at its front and rear ends;
[0141] The armrest cover 5, located above the base 1 and capable of rotating around the left or right side of the base 11, includes a lower armrest cover 51, two armrest cover shafts 52 installed at the front and rear ends of the lower armrest cover 51, and an upper armrest cover 23 located above the lower armrest cover 51 and fixedly connected to the two armrest cover shafts 52.
[0142] Two sets of pin assemblies 4 are provided at the front and rear ends of the lower cover 51 of the armrest cover. Each set of pin assemblies 4 includes two sets of pin units 41 located on the left and right sides of the armrest cover shaft 51. Each set of pin units 41 includes a pin seat 411 and a locking pin 412 that can move in the front and rear direction and lock or release the armrest cover shaft 52 and the base 11.
[0143] Two sets of activation components 2 are symmetrically distributed on the left and right sides of the lower cover 51 of the armrest cover. Each set of activation components 2 includes two moving blocks 22 that can move synchronously in the left and right directions.
[0144] And four sets of fixed pulley assemblies 3 are arranged between each set of pin units 41 and the moving block 22 and are connected to it for transmission.
[0145] In this embodiment, as Figure 6 As shown, to prevent the other moving block 22 from moving after one side moves, and to prevent the armrest cover shafts 52 on the left and right sides of the lower cover 51 from simultaneously unlocking with the base 11, thus avoiding the situation where the left and right sides of the armrest cover 5 derail simultaneously, a mis-opening limit component 6 is provided between the two sets of starting components 2. The mis-opening limit component 6 is configured such that when the two moving blocks 22 located on the left or right side of the lower cover 7 move in the left-right direction to abut against the mis-opening limit component 6, the two moving blocks 22 on the other side are restricted from moving in the left-right direction.
[0146] In this embodiment, the moving block 22 is divided into a left moving block 221 and a right moving block 222 arranged opposite to each other, and the left moving block 221 and the right moving block 222 are respectively provided in two side by side connected as one unit;
[0147] The erroneous opening limiting component 6 includes an erroneous opening limiting block 62 with a degree of freedom to move in the forward and backward direction and located between the left moving block 221 and the right moving block 222. The erroneous opening limiting block 62 cannot move in the left and right directions.
[0148] The mis-opening limiting block 62 is provided with a first notch 621 and a second notch 622 facing the left moving block 221 and the right moving block 222 respectively at the two end corners along the diagonal line;
[0149] The corner region of the mis-opening limiting block 62 opposite to the first notch 621 is provided with a first guide slope 623 facing the right moving block 22, and one of the right moving blocks 222 has a second guide slope 2221 that matches the first guide slope 623.
[0150] In this embodiment, the erroneously opened limit block 62 is configured as follows:
[0151] When the left moving block 221 moves to the right until one of the left moving blocks 221 abuts against the first notch 621, the first guide slope 623 abuts against the right moving block 222 with the second guide slope 2221, and the right moving block 222 is restricted from moving to the left by the mis-opening limit block 62.
[0152] When the right moving block 222 moves to the left until the second guide slope 2221 of one of the right moving blocks 222 is in close contact with the first guide slope 623, it drives the mis-opening limiting block 62 to move forward and backward until the other right moving block 222 abuts against the second notch 622. One of the left moving blocks 221 abuts against the corner area opposite to the mis-opening limiting block 62 and the second notch 622. The left moving block 221 is restricted by the mis-opening limiting block 62 and cannot move to the right.
[0153] In this embodiment, the mis-opening limiting block 62 is provided with a guide groove 624 distributed along the front-back direction. The mis-opening limiting component 6 also includes a fixing post 61 fixed to the lower cover 51 of the armrest cover and slidably connected to the guide groove 624, a first fixing block 64 located on one side of the mis-opening limiting block 62, and a first reset elastic member 63 connecting the mis-opening limiting block 62 and the first fixing block 64. The first reset elastic member 63 serves as a buffer and reset element.
[0154] In this embodiment, the first reset elastic element 63 is a reset spring.
[0155] In this embodiment, each set of startup components 2 further includes:
[0156] Button 21 located on the side of the lower cover 51 of the armrest cover;
[0157] A connector 23 that connects the button 21 and the two moving blocks 22 has a labyrinth lock 231 on its upper surface;
[0158] A second fixed block 24 is positioned between the two movable blocks 22;
[0159] And a second reset elastic member 25 connecting the second fixing block 24 and the connector 23, wherein the second reset elastic member 25 serves to buffer and reset.
[0160] In this embodiment, the second reset elastic element 25 is a reset spring.
[0161] In this embodiment, as Figure 7 and 8 As shown, the side-tipping handrail structure also includes a lower cover bracket 54 located between the lower cover 51 and the upper cover 53 of the handrail cover; a button bracket 26 located above the connector 23 is provided on the lower cover bracket 54, and a maze structure 27 for the maze locking member 231 to slide is provided on the lower surface of the button bracket 26.
[0162] The maze structure 27 is configured such that when the button 21 is pressed, the moving block 22 moves to the furthest point in the left or right direction; when the button 21 is pressed again, the moving block 22 returns to its original position.
[0163] In this embodiment, the maze structure 27 includes a first slide 271, a second slide 272, a locking island 273, and a guide island 274. The locking island 273 and the guide island 274 are located between the first slide 271 and the second slide 272. The guide island 274 is located at one end of the first slide 271 and the second slide 272. The other ends of the first slide 271 and the second slide 272 are connected to each other.
[0164] The maze locking component 231 has a raised triangular structure.
[0165] In this embodiment, the first slide 271 is located on the front side, and the second slide 272 is located on the rear side.
[0166] In this embodiment, after the maze structure 27 and the maze locking member 231 are provided, when the first pressing button 21 moves to the right to the maximum stroke of the left moving block 221, or the right moving block 222 moves to the left to the maximum stroke, it is at a certain distance from the mis-opening limit block 62, allowing the button 21 to be pressed again, but the distance is not enough to unlock the locking pin 412.
[0167] In this embodiment, the distance is the distance that the maze locking member 231 moves from the locking island 273 to the guide island 274.
[0168] In this embodiment, each set of fixed pulley assemblies 3 includes:
[0169] A plurality of fixed pulleys 31 are located between the movable block 22 and the locking pin 412;
[0170] And a pull rope 32 connecting the movable block 22 and the locking pin 412, and wound around the surface of the fixed pulley 31. Under the action of the fixed pulley 31, the pull rope 32 changes the direction of the pulling force, thereby driving the locking pin 412 to move back and forth.
[0171] In this embodiment, a torsion spring 413 is provided on the locking pin 412. When the two locking pins 412 on the left side of the lower armrest cover 51 release the armrest cover shaft 52 and the base 11, the left side of the armrest cover 5 is unlocked. Under the action of the torsion spring 413 on the two locking pins 412 on the right side of the lower armrest cover 51, the armrest cover 5 automatically flips to the right with the two locking pins 412 on the right side of the lower armrest cover 51 as the fixed axis of rotation. When the two locking pins 412 on the right side of the lower armrest cover 51 release the armrest cover shaft 52 and the base 11, the right side of the armrest cover 5 is unlocked. Under the action of the torsion spring 413 on the two locking pins 412 on the left side of the lower armrest cover 51, the armrest cover 5 automatically flips to the left with the two locking pins 412 on the left side of the lower armrest cover 51 as the fixed axis of rotation.
[0172] In this embodiment, each set of pin units 41 further includes a third reset spring element 414 for buffering and resetting. The third reset spring element 414 is a reset spring.
[0173] The working principle of this tilting handrail structure is as follows:
[0174] 1. Flip from left to right:
[0175] In the initial state, the maze locking member 231 is located at the connection between the first slide 271 and the second slide 272. The left moving block 221 is not in contact with the mis-opening limiting block 62, while the right moving block 222, which has the second guide ramp 2221, is close to the first guide ramp 623 of the mis-opening limiting block 62, with a certain distance between them, which is equal to the distance from the locking island 273 to the guide island 274.
[0176] When the button 21 located on the left side of the lower cover 51 of the armrest is pressed, the button 21 moves to the right. The two left moving blocks 221 connected by the connector 23 move to the right, and the maze lock 231 moves along the first slide 271. When the button 21 is released, the maze lock 231 slides into the locking island 273 under the action of the second reset spring 25. At this time, the left moving block 221 moves to the right and abuts against the first notch 621 of the mis-opening limit block 62. The other left moving block 221 is located outside the mis-opening limit block 62, and its travel is synchronously limited. The first guide slope 623 abuts against the right moving block 222 with the second guide slope 2221. The right moving block 222 is restricted by the mis-opening limit block 62 and cannot move to the left. At this time, the fixing post 61 is located at the end of the guide groove 624 away from the first guide slope 623.
[0177] During the movement of the left moving block 221 to the right, the pull rope 32 pulls the two locking pins 412 located at the front and rear ends on the left side, moving them back and forth away from the armrest cover shaft 52 and base 11. This unlocks the armrest cover shaft 52 and base 11 located on the left side of the armrest cover lower cover 51. Under the action of the torsion springs 413 on the two locking pins 412 located on the right side of the armrest cover lower cover 51, the armrest cover 5 automatically flips to the right with the two locking pins 412 located on the right side of the armrest cover lower cover 51 as the fixed axis of rotation. At this time, due to the restriction of the accidental opening limit block 62 and the maze structure 27, the button 21 located on the right side of the armrest cover lower cover 51 cannot be pressed, and the locking pins 412 are always in the unlocked state. When the armrest cover 5 is closed, the armrest cover 5 will not bump against the locking pins 412.
[0178] After closing the armrest cover 5, press the button 21 located on the left side of the lower armrest cover 51 again. The labyrinth lock 231, restricted by the positions of the guide island 274 and the locking island 273, slides into the second slide rail 272. Release the button 21, and the labyrinth lock 231 returns to its original position under the action of the second reset spring 25. The pull rope 32 pulls the two locking pins located on the left front and rear ends to move axially towards the armrest cover shaft 52 and the base 11, thereby locking the armrest cover shaft 52 and the base 11 located on the left side of the lower armrest cover 51.
[0179] 2. Flip from right to left:
[0180] In the initial state, the maze locking member 231 is located at the connection between the first slide 271 and the second slide 272. The left moving block 221 is not in contact with the mis-opening limiting block 62, while the right moving block 222, which has the second guide ramp 2221, is close to the first guide ramp 623 of the mis-opening limiting block 62, with a certain distance between them, which is equal to the distance from the locking island 273 to the guide island 274.
[0181] When the button 21 located on the right side of the lower cover 51 of the armrest is pressed, the button 21 moves to the left. The two right moving blocks 222 connected by the connector 23 move to the left, and the maze lock 231 moves along the first slide 271 until it reaches the guide island 274 at the end of the first slide 271. Releasing the button 21 causes the maze lock 231 to slide into the locking island 273 under the action of the second reset spring 25. At this time, the right moving block 222 moves to the left, causing the mis-opening limit block 62 to move forward and backward until another right moving block 222 abuts against the second notch 622. At this point, one of the left moving blocks 221 abuts against the corner area opposite the mis-opening limit block 62 and the second notch 622, preventing the left moving block 221 from moving to the right. At this time, the fixing post 61 is located at the end of the guide groove 624 near the first guide slope 623.
[0182] During the movement of the right moving block 222 to the left, the pull rope 32 pulls the two locking pins 412 located at the front and rear ends on the right side, moving them back and forth away from the armrest cover shaft 52 and base 11. This unlocks the armrest cover shaft 52 and base 11 located on the right side of the armrest cover lower cover 51. Under the action of the torsion springs 413 on the two locking pins 412 located on the left side of the armrest cover lower cover 51, the armrest cover 5 automatically flips to the left with the two locking pins 412 located on the left side of the armrest cover lower cover 51 as the fixed axis of rotation. At this time, due to the restriction of the accidental opening limit block 62 and the maze structure 27, the button 21 located on the left side of the armrest cover lower cover 51 cannot be pressed, and the locking pins 412 are always in the unlocked state. When the armrest cover 5 is closed, the armrest cover 5 will not bump against the locking pins 412.
[0183] After closing the armrest cover 5, press the button 21 located on the right side of the lower armrest cover 51 again. The labyrinth lock 231, restricted by the positions of the guide island 274 and the locking island 273, slides into the second slide rail 272. Release the button 21, and the labyrinth lock 231 returns to its original position under the action of the second reset spring 25. The mis-opening limit block 62 returns to its original position under the reset action of the first reset spring 63, so that the fixing post 61 is located at the end of the guide groove 624 away from the first guide slope 623. The pull rope 32 pulls the two locking pins located on the right side at the front and rear ends to move axially towards the armrest cover shaft 52 and the base 11, thereby locking the armrest cover shaft 52 and the base 11 located on the left side of the lower armrest cover 51.
[0184] Although the present invention has been described in detail above with general descriptions, specific embodiments, and experiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A side-tilting handrail structure, characterized in that, include: The base (1) has two bases (11) at its front and rear ends; The armrest cover (5) located above the base (1) and capable of rotating around the left or right side of the base (11) includes a lower armrest cover (51), two armrest cover shafts (52) installed at the front and rear ends of the lower armrest cover (51), and an upper armrest cover (53) located above the lower armrest cover (51) and fixedly connected to the two armrest cover shafts (52); Two sets of pin assemblies (4) are provided at the front and rear ends of the lower cover (51) of the armrest cover. Each set of pin assemblies (4) includes two sets of pin units (41) located on the left and right sides of the armrest cover shaft (52). Each set of pin units (41) includes a pin seat (411) and a locking pin (412) that can move in the front and rear direction and lock or release the armrest cover shaft (52) and the base (11). Two sets of starting components (2) are symmetrically distributed on the left and right sides of the lower cover (51) of the armrest cover. Each set of starting components (2) includes two moving blocks (22) that can move synchronously in the left and right directions. And four sets of fixed pulley assemblies (3) are arranged between each set of pin units (41) and the moving block (22) and are connected to drive it.
2. The side-tipping handrail structure according to claim 1, characterized in that, A mis-opening limiting component (6) is provided between the two sets of starting components (2). The mis-opening limiting component (6) is configured such that when the two moving blocks (22) located on the left or right side of the lower cover (7) move in the left or right direction to abut the mis-opening limiting component (6), the two moving blocks (22) on the other side are restricted from moving in the left or right direction.
3. The side-tipping handrail structure according to claim 2, characterized in that, The movable block (22) is divided into a left movable block (221) and a right movable block (222) arranged opposite to each other. The left movable block (221) and the right movable block (222) are respectively provided in two side by side connected as one unit. The erroneous opening limit assembly (6) includes an erroneous opening limit block (62) having a degree of freedom to move in the forward and backward direction and located between the left moving block (221) and the right moving block (222); The mis-opening limiting block (62) has a first notch (621) and a second notch (622) facing the left moving block (221) and the right moving block (222) respectively at the two corner regions along the diagonal line; The corner region of the mis-opening limiting block (62) opposite to the first notch (621) is provided with a first guide slope (623) facing the right moving block (222), and one of the right moving blocks (222) has a second guide slope (2221) that matches the first guide slope (623).
4. A side-tipping handrail structure according to claim 3, characterized in that, The erroneously opened limit block (62) is set as follows: When the left moving block (221) moves to the right until one of the left moving blocks (221) abuts against the first notch (621), the first guide slope (623) abuts against the right moving block (222) with the second guide slope (2221), the right moving block (222) is restricted by the mis-opening limit block (62) and cannot move to the left; When the right moving block (222) moves to the left until the second guide slope (2221) of one of the right moving blocks (222) is in close contact with the first guide slope (623), it drives the mis-opening limiting block (62) to move forward and backward until the other right moving block (222) abuts against the second notch (622). One of the left moving blocks (221) abuts against the corner area opposite to the mis-opening limiting block (62) and the second notch (622). The left moving block (221) is restricted by the mis-opening limiting block (62) and cannot move to the right.
5. A side-tipping handrail structure according to claim 4, characterized in that, The mis-opening limiting block (62) is provided with a guide groove (624) distributed in the front-back direction. The mis-opening limiting component (6) also includes a fixed post (61) fixed on the lower cover (51) of the armrest cover and slidably connected to the guide groove (624), a first fixed block (64) located on one side of the mis-opening limiting block (62), and a first reset elastic member (63) connecting the mis-opening limiting block (62) and the first fixed block (64).
6. A side-tipping handrail structure according to claim 1, characterized in that, Each set of startup components (2) also includes: Button (21) located on the side of the lower cover (51) of the armrest cover; A connector (23) connecting the button (21) and the two moving blocks (22) has a maze lock (231) on its upper surface; A second fixed block (24) is disposed between the two movable blocks (22); And a second reset spring member (25) connecting the second fixing block (24) and the connector (23).
7. A side-tipping handrail structure according to claim 6, characterized in that, The side-tipping handrail structure also includes a lower cover bracket (54) located between the lower cover (51) and the upper cover (53) of the handrail cover; The lower cover bracket (54) is provided with a button bracket (26) located above the connector (23), and the lower surface of the button bracket (26) is provided with a maze structure (27) for the maze lock (231) to slide. The maze structure (27) is configured such that when the button (21) is pressed, the moving block (22) moves to the furthest point to the left or right; when the button (21) is pressed again, the moving block (22) returns to its original position.
8. A side-tipping handrail structure according to claim 7, characterized in that, The maze structure (27) includes a first slide (271), a second slide (272), a locking island (273), and a guide island (274). The locking island (273) and the guide island (274) are located between the first slide (271) and the second slide (272). The guide island (274) is located at one end of the first slide (271) and the second slide (272). The other ends of the first slide (271) and the second slide (272) are connected to each other. The maze lock (231) is a raised triangular structure.
9. A side-tipping handrail structure according to claim 1, characterized in that, Each set of fixed pulleys (3) includes: A plurality of fixed pulleys (31) are located between the movable block (22) and the locking pin (412); And a pull rope (32) that connects the movable block (22) and the locking pin (412) and is wound around the surface of the fixed pulley (31).
10. A side-tipping handrail structure according to claim 9, characterized in that, A torsion spring (413) is provided on the locking pin (412).