Handrail assembly and seat

Abstract

The utility model discloses a handrail assembly and seat. The handrail assembly of the utility model, including handrail main part and support. The support detachably connects in handrail main part, and the support includes connecting portion and clamping portion, and the clamping portion is connected with handrail main part through connecting portion, and the clamping portion includes first clamping block, first backplate, first elastic part, second clamping block, second backplate and second elastic part. Through the two -segment type design of support, the second clamping block is slidably connected second backplate through second elastic part, makes the product of smaller size between first clamping block and second clamping block after the second elastic part relative second backplate sliding, and the resilience of second elastic part makes first clamping block and second clamping block hold together. When the user needs to hold the large -size product such as tablet computer, then make second backplate relative first backplate sliding, make the support can have greater clamping distance, thereby satisfied the diversified demand of holding the product in larger size range.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seat, specifically relates to a handrail subassembly and seat. BACKGROUND

[0002] Many seats will set up handrails on both sides of the seat to improve the use experience of users, and the mobile phone is the basic tool indispensable for people's life and work in the current information society, and using the mobile phone while sitting on the chair increasingly becomes the standard in people's daily life and work, therefore, there is related technology of combining the mobile phone support on the seat handrail in the prior art. However, with the development of living standards, the simple support can not meet the diversified needs of users. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at solving one of the technical problems in the prior art at least. For this purpose, the utility model provides a handrail subassembly, which can clamp products in a larger size range and meet diversified needs.

[0004] The utility model further provides a seat with the above handrail subassembly.

[0005] According to the handrail subassembly of the first aspect embodiment of the utility model, the handrail main body and the support are connected, the support includes the connecting portion and the clamping portion, the clamping portion is connected with the handrail main body through the connecting portion, the clamping portion includes the first clamping block, the first back plate, the first elastic piece, the second clamping block, the second back plate and the second elastic piece, the first clamping block is installed on the first back plate, the second clamping block is slidably connected on the second back plate, the two ends of the second elastic piece are connected with the second clamping block and the second back plate respectively, the second back plate is slidably connected on the first back plate, the two ends of the first elastic piece are connected with the second back plate and the first back plate respectively, the second clamping block and the second back plate can move along the length direction of the first back plate to change the distance between the first clamping block and the second clamping block, and the first elastic piece and the second elastic piece are used to drive the second clamping block to be close to the first clamping block.

[0006] The handrail assembly has at least the following beneficial effects: with the increase of the size of mobile phones in today's life, even the large-size electronic products such as tablets have the demand for clamping, the movable range of the clamping blocks of the handrail in the prior art is limited, and the use demand for clamping large-size products cannot be met, taking mobile phones and tablets as examples, the handrail assembly of the embodiment of the utility model is designed in two sections, the second clamping block is slidably connected to the second back plate through the second elastic member, the second elastic member is slid relative to the second back plate, and then the products with relatively small size such as mobile phones are placed between the first clamping block and the second clamping block, the elastic force of the second elastic member enables the first clamping block and the second clamping block to clamp together. When the user needs to clamp large-size products such as tablets, the second back plate is slid relative to the first back plate, so that the support can have a larger clamping distance, at this time, the tablet is placed between the first clamping block and the second clamping block, and the elastic force of the first elastic member and the second elastic member enables the first clamping block and the second clamping block to clamp the tablet together, thereby meeting the diversified demand for clamping products in a larger size range.

[0007] According to some embodiments of the utility model, the first back plate is provided with a placing groove, the first elastic member and the second elastic member are both springs, the first elastic member is sleeved outside the second elastic member, the first elastic member is arranged in the placing groove, and the second back plate is slidably arranged in the placing groove along the two sides of the first back plate in the width direction.

[0008] According to some embodiments of the utility model, the first clamping block is movably connected to the first back plate, the second clamping block is movably connected to the second back plate, the first clamping block can be accommodated in the first back plate, and the second clamping block can be accommodated in the second back plate.

[0009] According to some embodiments of the utility model, the first clamping block is rotatably connected to the first back plate, the second clamping block is rotatably connected to the second back plate, the handrail assembly further comprises a first button, the first button is installed on the clamping part, when the first button is not pressed, the first button limits the rotation of the first clamping block and the second clamping block, when the first button is pressed, the first clamping block can be rotated until perpendicular to the first back plate, the second clamping block can be rotated until perpendicular to the second back plate, and the first clamping block is parallel to the second clamping block.

[0010] According to some embodiments of the utility model, the handrail assembly further includes two first torsional springs, the two first torsional springs are respectively arranged in the first clamping block and the second clamping block, the first button includes a pressing part and a clamping part, the clamping part is arranged at both ends of the pressing part, the clamping part is elastic, the clamping part is provided with a guide groove with gradually decreasing width from outside to inside, a part of the clamping part is arranged in the guide groove, the first clamping block and the second clamping block are both provided with a clamping groove, when the first button is not pressed, the two clamping parts are clamped in the clamping groove to limit the rotation of the first clamping block and the second clamping block, when the first button is pressed, the two clamping parts slide downward along the guide groove and approach each other, the clamping part is separated from the clamping groove, and the first torsional spring drives the first clamping block to rotate to be perpendicular to the first back plate and drives the second clamping block to rotate to be perpendicular to the second back plate.

[0011] According to some embodiments of the utility model, the connecting part includes a telescopic rod and a first adapter, the first adapter connects the telescopic rod and the handrail body, one end of the telescopic rod away from the first adapter is connected with the clamping part, and the telescopic rod can be telescoped along the axial direction to change the distance between the clamping part and the first adapter.

[0012] According to some embodiments of the utility model, the handrail body includes an arm segment and a connecting rod connected with each other, the arm segment has a first surface and a second surface arranged oppositely, the first surface faces upward and is used for placing an arm, and the first adapter is located below the second surface.

[0013] According to some embodiments of the utility model, the handrail assembly further includes a display screen, and the display screen is mounted on the first surface.

[0014] According to some embodiments of the utility model, the handrail assembly further includes a second button and a clamping piece, the handrail body is provided with a clamping groove, the clamping piece is rotatably mounted on one end of the connecting part connected with the handrail body, the second button abuts against the clamping piece, when the second button is not pressed, the clamping piece is clamped in the clamping groove, and the connecting part is fixedly connected with the handrail body, when the second button is pressed, the clamping piece is separated from the clamping groove, so that the connecting part and the handrail body are separated from each other.

[0015] The seat according to the second aspect of the utility model comprises the handrail assembly according to any one of the first aspect of the utility model.

[0016] The seat has at least the following beneficial effects: the handrail assembly of the first aspect of the utility model has two-stage design, the second clamping block is slidably connected to the second back plate through the second elastic member, and the second elastic member is used to place a product with a relatively small size such as a mobile phone between the first clamping block and the second clamping block after sliding relative to the second back plate, and the elastic force of the second elastic member enables the first clamping block and the second clamping block to jointly clamp. When a user needs to clamp a large-size product such as a tablet computer, the second back plate is made to slide relative to the first back plate, so that the support can have a larger clamping distance, and at this time, the tablet computer is placed between the first clamping block and the second clamping block, and the elastic force of the first elastic member and the second elastic member jointly enables the first clamping block and the second clamping block to clamp the tablet computer, thereby meeting the diversified needs of clamping products in a larger size range, and enabling the seat to meet more diversified clamping needs.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in connection with the drawings and embodiments, in which:

[0019] Figure 1 It is the perspective view of the handrail assembly in an embodiment of the utility model;

[0020] Figure 2 It is the first explosion drawing of the handrail assembly in an embodiment of the utility model;

[0021] Figure 3 It is Figure 2 The enlarged view of area A in it;

[0022] Figure 4 It is the second explosion drawing of the handrail assembly in an embodiment of the utility model;

[0023] Figure 5 It is the perspective view of the clamping part of the handrail assembly in an embodiment of the utility model;

[0024] Figure 6 It is Figure 5 The internal structure schematic view of the clamping part in it;

[0025] Figure 7 It is Figure 6 The enlarged view of area B in it;

[0026] Figure 8 It is the first perspective view of the support of the handrail assembly in an embodiment of the utility model;

[0027] Figure 9 It isFigure 8 Enlarged view of the middle C region;

[0028] Figure 10 Second perspective view of the support of the handrail assembly in an embodiment of the present application.

[0029] The drawings show that the handrail assembly 100, the handrail main body 101, the support 102, the second button 103, the connecting part 104, the clamping part 105, the arm segment 106, the connecting rod 107, the first surface 108, the display screen 109, the clamping part 301, the second surface 401, the clamping groove 402, the first clamping block 501, the second clamping block 502, the first button 503, the first back plate 504, the second back plate 505, the placing groove 601, the first torsional spring 701, the pressing part 702, the clamping part 703, the guide groove 704, the clamping groove 705, the first adapter 801, the telescopic rod 802, the second adapter 803, the first elastic part 1001, and the second elastic part 1002. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0031] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0032] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0033] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0034] In the description of the present utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present utility model. In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] Reference Figure 1 , Figures 5 to 10According to the handrail assembly 100 of the first aspect embodiment of the utility model, the bracket 102 is designed in two sections, the second clamping block 502 is slidably connected to the second back plate 505 through the second elastic member 1002, the second elastic member 1002 is used to drive the second clamping block 502 to move close to the first clamping block 501, when the user needs to clamp a small size product such as a mobile phone, the second back plate 505 is kept stationary, and the second clamping block 502 is moved close to the first clamping block 501 through the second elastic member 1002, so that the first clamping block 501 and the second clamping block 502 jointly clamp the small size product; when the user needs to clamp a large size product such as a tablet computer, the second back plate 505 is moved close to the first back plate 504, and the first clamping block 501 and the second clamping block 502 jointly clamp the large size product through the first elastic member 1001 and the second elastic member 1002, so that the handrail assembly 100 can clamp products of different sizes, and the use requirement of the handrail is met.

[0036] It should be noted that, Figure 1 The bracket 102 shown in the first aspect embodiment of the utility model is in a storage state, Figure 5 The clamping part 105 shown in the first aspect embodiment of the utility model is in an unopened state, Figure 8 And Figure 9 The clamping part 105 shown in the first aspect embodiment of the utility model is in a state of clamping a small size product, Figure 10The clamping part 105 shown in the middle is in a state when clamping a large-size product. It should be noted that the specific maximum clamping range and minimum clamping range of the clamping part 105 can be adjusted according to actual needs, and the clamping needs of most portable electronic products in the market can be met as much as possible.

[0037] Reference Figure 5 、 Figures 8 to 10 In some embodiments of the utility model, the first back plate 504 is provided with a placing groove 601, the first elastic member 1001 and the second elastic member 1002 are both springs, the first elastic member 1001 is sleeved outside the second elastic member 1002, the first elastic member 1001 is arranged in the placing groove 601, and the second back plate 505 is slidably arranged in the placing groove 601 along the two sides of the first back plate 504 in the width direction. Such design can maximize the use of the internal space of the clamping part 105, facilitate the overall bracket 102 to be stored as shown in Figure 1 , improve the space utilization, and the second back plate 505, the first elastic member 1001 and the second elastic member 1002 are designed as closely as possible and will not interfere in the movement direction. It should be noted that, Figure 10 The first elastic member 1001 shown in the figure is in a stretched state, and the second elastic member 1002 is in a contracted state, Figure 9 The second back plate 505 in the middle does not protrude relative to the first back plate 504, the first elastic member 1001 is in a normal state, and the second clamping block 502 slides relative to the second back plate 505 to clamp a small-size product, so that the second elastic member 1002 is in a contracted state, and the first elastic member 1001 and the second elastic member 1002 are arranged inside the shell, so they are not shown in Figure 8 and Figure 9 , Figure 10 The second elastic member 1002 in the middle is a perspective view for easy understanding.

[0038] Reference Figure 5 and Figure 9 In some embodiments of the utility model, the first clamping block 501 is movably connected to the first back plate 504, the second clamping block 502 is movably connected to the second back plate 505, the first clamping block 501 can be stored in the first back plate 504, and the second clamping block 502 can be stored in the second back plate 505. The storage state described in the text refers to Figure 5 The state of the first clamping block 501 and the second clamping block 502 shown in the middle, that is, being placed in the first back plate 504 and the second back plate 505, so that the clamping part 105 can be placed below the first adapter 801 after rotation, to realize Figure 1 The state shown in the middle, improve the storage capacity of the bracket 102, so that the stored bracket 102 does not affect the use of the basic functions of the handrail assembly 100.

[0039] ReferenceFigures 6 to 9 In some embodiments of the utility model, first clamping block 501 rotatably connected in first backplate 504, second clamping block 502 rotatably connected in second backplate 505, handrail assembly 100 still includes first button 503, first button 503 is installed in clamping portion 105, when first button 503 is not pressed, first button 503 restricts first clamping block 501 and second clamping block 502 rotation, when first button 503 is pressed, first clamping block 501 can rotate until perpendicular to first backplate 504, second clamping block 502 can rotate until perpendicular to second backplate 505, first clamping block 501 and second clamping block 502 are parallel. Such design can easily realize the rotation of first clamping block 501 and second clamping block 502, so that it can quickly enter the clamping state, specifically, when first button 503 is not pressed, first clamping block 501 and second clamping block 502 are in Figure 6 The state shown in the figure, when first button 503 is pressed, first clamping block 501 and second clamping block 502 are in Figure 9 The state shown in the figure, Figure 9 Second clamping block 502 in the among also be pulled, and at this time the small size product such as mobile phone is placed between first clamping block 501 and second clamping block 502, and the resilience of second elastic member 1002 will drive second clamping block 502 to move towards first clamping block 501, so as to clamp the product.

[0040] Reference Figure 6 And Figure 7In some embodiments of the utility model, the handrail assembly 100 further includes two first torsion springs 701, the two first torsion springs 701 are respectively arranged in the first clamping block 501 and the second clamping block 502, the first button 503 includes a pressing part 702 and a clamping part 703, the clamping part 703 is arranged at both ends of the pressing part 702, the clamping part 703 has elasticity, the clamping part 703 is arranged in the guide groove 704, the first clamping block 501 and the second clamping block 502 are all provided with a clamping groove 705, when the first button 503 is not pressed, the two clamping parts 703 are all clamped in the clamping groove 705 to limit the rotation of the first clamping block 501 and the second clamping block 502, when the first button 503 is pressed, the two clamping parts 703 slide downward along the guide groove 704 and approach each other, the clamping part 703 is separated from the clamping groove 705, and the first torsion spring 701 drives the first clamping block 501 to rotate to be perpendicular to the first back plate 504 and drives the second clamping block 502 to rotate to be perpendicular to the second back plate 505. Such design can make the clamping groove 705 of the first clamping block 501 and the second clamping block 502 fall off from the clamping part 703 after the first button 503 is pressed, and the first clamping block 501 and the second clamping block 502 rotate and expand under the driving of the torsion spring, and when resetting is needed, the first clamping block 501 and the second clamping block 502 are manually pressed in the direction of the first button 503 until the clamping part 703 is clamped in the clamping groove 705, which is simple and efficient. It should be noted that the clamping design of the first button 503, the first clamping block 501 and the second clamping block 502 can also be other structures, for example, changing the positions of the clamping part 703 and the clamping groove 705 to correspond to each other upward and downward, or changing them into a structure similar to that at the second button 103, which can clamp the first clamping block 501 and the second clamping block 502, and further, a spring is arranged below the first button 503 to automatically reset after being pressed, which facilitates the effective use of the first button 503.

[0041] Reference Figure 8 In some embodiments of the utility model, the connecting part 104 includes a telescopic rod 802 and a first adapter 801, the first adapter 801 connects the telescopic rod 802 and the handrail main body 101, one end of the telescopic rod 802 away from the first adapter 801 is connected with the clamping part 105, and the telescopic rod 802 can be telescopic along the axial direction to change the distance between the clamping part 105 and the first adapter 801. Such design can improve the flexibility of the support 102, so that the clamping part 105 can change the distance from the handrail main body 101, thereby adapting to the needs of different use distances of users and improving the use experience.

[0042] It should be noted that reference Figure 8In some embodiments of the utility model, the handrail assembly 100 further comprises a second adapter 803, the clamping part 105 and the telescopic rod 802 are connected through the second adapter 803, the second adapter 803 can drive the clamping part 105 to rotate around the central axis of the telescopic rod 802, the clamping part 105 can rotate around the first axis relative to the second adapter 803, and the first axis and the central axis of the telescopic rod 802 are perpendicular to each other. In this way, the rotation flexibility of the clamping part 105 can be improved, the use requirement of more angles can be met, and the handrail assembly 100 is more convenient to store.

[0043] Further, in some embodiments of the utility model, the handrail assembly 100 further comprises a damper, the damper is arranged in the second adapter 803, and the damper is used for maintaining the angle of the telescopic rod 802, the second adapter 803 and the clamping part 105. In this way, the clamping part 105 will not shake after clamping the product.

[0044] Reference Figure 1 And Figure 4 In some embodiments of the utility model, the handrail main body 101 comprises an arm segment 106 and a connecting rod 107 connected with each other, the arm segment 106 has a first surface 108 and a second surface 401 arranged oppositely, the first surface 108 faces upwards and is used for placing an arm, and the first adapter 801 is located below the second surface 401. The first surface 108 is used for placing an arm, and the first adapter 801 is arranged below the second surface 401, so that the design of the support 102 will not affect the basic function of placing an arm of the handrail assembly 100, and the appearance is improved, further, the arrangement position of the second button 103 also becomes more reasonable, is closer to the fingers of a user, and conforms to the use intuition.

[0045] Reference Figure 1 And Figure 2 In some embodiments of the utility model, the handrail assembly 100 further comprises a display screen 109, and the display screen 109 is installed on the first surface 108. The display screen 109 further improves the functional diversity of the handrail assembly 100, can be used for controlling a seat and other products using the handrail assembly 100, also can be used for controlling electronic products and the like clamped by the support 102, and further enriches the function of the handrail assembly 100.

[0046] Reference Figures 2 to 4In some embodiments of this utility model, the armrest assembly 100 further includes a second button 103 and a snap-fit ​​component 301. The armrest body 101 has a slot 402. The snap-fit ​​component 301 is rotatably mounted on the connecting part 104, which is connected to one end of the armrest body 101. The second button 103 abuts against the snap-fit ​​component 301. When the second button 103 is not pressed, the snap-fit ​​component 301 is snapped into the slot 402, and the connecting part 104 is fixedly connected to the armrest body 101. When the second button 103 is pressed, the snap-fit ​​component 301 disengages from the slot 402, thereby disengaging the connecting part 104 from the armrest body 101. The design of the second button 103 makes the disassembly of the bracket 102 more convenient, and the detachable bracket 102 can also be disassembled as follows: Figure 8 The standalone use shown enhances the flexibility of usage scenarios. Furthermore, a second torsion spring is incorporated within the locking element 301. This allows for reinstallation of the bracket 102 onto the armrest body 101. First, press the second button 103 to rotate the locking element 301. Then, place the bracket 102 under the armrest body 101 and release the second button 103. The rebound force of the second torsion spring allows the locking element 301 to re-lock into the slot 402 of the armrest body 101. The specific structure of the second button 103 can also refer to the form of the first button 503, or other locking structures can be used. Figure 2 The diagram shown illustrates the state in which the bracket 102 detaches from the armrest body 101 after the second button 103 is pressed.

[0047] The seat according to a second aspect embodiment of the present invention includes an armrest assembly 100 as described in any of the first aspect embodiments. The armrest assembly 100 of the first aspect embodiment of the present invention features a two-section design for the bracket 102. A second clamping block 502 is slidably connected to a second back panel 505 via a second elastic member 1002. After the second elastic member 1002 slides relative to the second back panel 505, relatively small products such as mobile phones can be placed between the first clamping block 501 and the second clamping block 502. The rebound force of the second elastic member 1002 causes the first clamping block 501 and the second clamping block 502 to clamp the product together. When a user needs to clamp large-sized products such as tablets, the second back plate 505 slides relative to the first back plate 504, allowing the bracket 102 to have a larger clamping distance. At this time, the tablet is placed between the first clamping block 501 and the second clamping block 502. The rebound force of the first elastic member 1001 and the second elastic member 1002 together causes the first clamping block 501 and the second clamping block 502 to clamp the tablet, thereby meeting the diverse needs of clamping products within a larger size range, thus enabling the seat to meet more diverse clamping needs.

[0048] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of the ordinary skill in the art who possesses under the premise of not departing from the utility model's tenet. Besides, the embodiment and the feature in the embodiment of the utility model can be combined mutually under the condition of not conflicting.

Claims

1. A handrail assembly, characterized in that The handrail assembly comprises a handrail body, a support which is detachably connected to the handrail body, the support comprising a connecting part and a clamping part, the clamping part being connected to the handrail body through the connecting part, the clamping part comprising a first clamping block, a first back plate, a first elastic member, a second clamping block, a second back plate and a second elastic member, the first clamping block being mounted on the first back plate, the second clamping block being slidably connected to the second back plate, the two ends of the second elastic member being connected to the second clamping block and the second back plate respectively, the second back plate being slidably connected to the first back plate, the two ends of the first elastic member being connected to the second back plate and the first back plate respectively, the second clamping block and the second back plate being movable along the length direction of the first back plate to change the distance between the first clamping block and the second clamping block, the first elastic member and the second elastic member being used to drive the second clamping block to move close to the first clamping block. The first back plate is provided with a placing groove, the first elastic member and the second elastic member are springs, the first elastic member is sleeved outside the second elastic member, the first elastic member is arranged in the placing groove, and the two sides of the second back plate along the width direction of the first back plate are slidably arranged in the placing groove. The first clamping block is movably connected to the first back plate, the second clamping block is movably connected to the second back plate, the first clamping block can be accommodated in the first back plate, and the second clamping block can be accommodated in the second back plate.

2. The handrail assembly of claim 1, wherein, The first clamping block is rotatably connected to the first back plate, the second clamping block is rotatably connected to the second back plate, the handrail assembly further comprises a first button, the first button is mounted on the clamping part, when the first button is not pressed, the first button limits the rotation of the first clamping block and the second clamping block, when the first button is pressed, the first clamping block can be rotated until perpendicular to the first back plate, the second clamping block can be rotated until perpendicular to the second back plate, and the first clamping block is parallel to the second clamping block.

3. The handrail assembly of claim 1, wherein, The handrail assembly further comprises two first torsion springs, the two first torsion springs are arranged in the first clamping block and the second clamping block respectively, the first button comprises a pressing part and a clamping part, the clamping part is arranged at the two ends of the pressing part, the clamping part has elasticity, the clamping part is arranged in the guiding groove, the clamping part has elasticity, the clamping part is arranged in the guiding groove, the first clamping block and the second clamping block are provided with clamping grooves, when the first button is not pressed, the two clamping parts are clamped in the clamping grooves to limit the rotation of the first clamping block and the second clamping block, when the first button is pressed, the two clamping parts slide downward along the guiding groove and move close to each other, the clamping part is separated from the clamping groove, and the first torsion spring drives the first clamping block to rotate to be perpendicular to the first back plate and drives the second clamping block to rotate to be perpendicular to the second back plate.

4. The handrail assembly of claim 3, wherein, ​ 5. The handrail assembly of claim 4, wherein, ​ 6. The handrail assembly of claim 1, wherein, The connecting part comprises a telescopic rod and a first adapter, the first adapter connects the telescopic rod and the handrail body, one end of the telescopic rod away from the first adapter is connected with the clamping part, and the telescopic rod can be telescoped along its own axial direction to change the distance between the clamping part and the first adapter.

7. The handrail assembly of claim 6, wherein, The handrail body comprises arm segments and connecting rods connected with each other, the arm segments have first surfaces and second surfaces arranged oppositely, the first surfaces face upwards and are used for placing arms, and the first adapter is located below the second surfaces.

8. The handrail assembly of claim 7, wherein, The handrail assembly further comprises a display screen, and the display screen is installed on the first surface.

9. The handrail assembly of claim 1, wherein, The handrail assembly further comprises a second button and a clamping piece, the handrail body is provided with a clamping groove, the clamping piece is rotatably installed on one end of the connecting part connected with the handrail body, the second button is in abutment with the clamping piece, when the second button is not pressed, the clamping piece is clamped in the clamping groove, and the connecting part is fixedly connected with the handrail body, when the second button is pressed, the clamping piece is disengaged from the clamping groove, so that the connecting part and the handrail body are disengaged from each other.

10. A seat, characterized by The handrail assembly comprises the handrail assembly according to any one of claims 1-9.

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