Armrest device and seat

Abstract

The utility model discloses an armrest device and a seat, the armrest device comprises a connecting arm, an adjusting assembly and an armrest assembly, the upper end of the connecting arm is provided with a first rotating column; the adjusting assembly comprises a supporting shell, a first rotating seat and a fixing seat, a first mounting cavity is formed in the supporting shell, the supporting shell is arranged at the upper end of the connecting arm, the first rotating column extends into the first mounting cavity, the first rotating seat is rotationally connected to the first rotating column, and the fixing seat is fixed to the first rotating column and located on the upper side of the first rotating seat; a plurality of first rotating gear grooves are formed in the upper side of the first rotating seat, the first rotating gear grooves are formed in the circumferential direction of the first rotating column at intervals, two telescopic gear columns are arranged on the lower side of the fixed seat, and the lower ends of the two gear columns are clamped in the first rotating gear grooves; the armrest assembly comprises an armrest pad, and the armrest pad is arranged on the upper side of the supporting shell. According to the handrail device provided by the utility model, the use flexibility and adaptability of the handrail are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to an armrest device and a seat. Background Technology

[0002] In existing seat designs, the armrests mounted on both sides of the seat cushion can typically only rotate at a predetermined angle. This design limits the flexibility and adaptability of the armrests. Since users have different heights, body types, and usage habits, their needs for the angle and position of the armrests also vary. However, the fixed rotation range of traditional armrests often cannot meet the needs of all users, causing some users to experience discomfort or inconvenience when using the chair. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a handrail device that greatly improves the flexibility and adaptability of handrails.

[0004] Secondly, this utility model also proposes a seat that uses the above-mentioned armrest device.

[0005] The handrail device provided according to the first aspect of the present invention includes:

[0006] The connecting arm has a first rotating column at its upper end;

[0007] The adjustment assembly includes a support shell, a first rotating seat, and a fixed seat. The support shell has a first mounting cavity inside and is located at the upper end of the connecting arm. The first rotating column extends into the first mounting cavity. The first rotating seat is rotatably connected to the first rotating column and located within the first mounting cavity. The fixed seat is fixed to the first rotating column and located on the upper side of the first rotating seat. The upper side of the first rotating seat has a plurality of first rotation position slots, which are arranged at intervals along the circumference of the first rotating column. The lower side of the fixed seat has two retractable position posts, which are located on opposite sides of the fixed seat. The lower ends of the two position posts are circular and engaged in the first rotation position slots.

[0008] The armrest assembly includes an armrest pad, which is disposed on the upper side of the support shell.

[0009] According to the handrail device provided by the first aspect of the utility model, the first rotating column at the upper end of the connecting arm is matched with the first rotating seat in the adjusting assembly, so that the handrail can realize multi-angle rotation, and the limitation of the fixed rotating range of the traditional handrail is broken. The plurality of first rotating gear grooves arranged along the circumference of the first rotating column on the first rotating seat are mutually clamped with the two telescopic gear columns on the lower side of the fixed seat, so that the stable positioning of the handrail at different angles is realized, the user can adjust the handrail to the most comfortable position according to the own use habit, thereby meeting the diversified needs of different users for the angle and position of the handrail, improving the comfort and practicability of the seat, and enhancing the use experience of the user.

[0010] According to the handrail device provided by the first aspect of the utility model, the left and right two side walls of the first mounting cavity are provided with a plurality of front and rear sliding gear grooves arranged in the front and rear directions, and the bottom wall is provided with a sliding groove arranged in the front and rear directions, the first rotating column is arranged in the sliding groove, the supporting shell can slide forward or backward relative to the first rotating column, and the adjusting assembly further comprises two front and rear gear pieces and a first spring, the two front and rear gear pieces are arranged on the left and right two sides of the first rotating seat, the first spring is arranged on the first rotating seat and abuts against the two front and rear gear pieces at two ends respectively, and the first spring is configured to be capable of respectively pushing the two front and rear gear pieces, so that the two front and rear gear pieces are respectively clamped into the front and rear sliding gear grooves.

[0011] According to the handrail device provided by the first aspect of the utility model, the handrail assembly further comprises a handrail seat, a second rotating seat, a second elastic piece and a clamping column, the handrail pad is connected to the upper side of the handrail seat, the handrail seat is provided with a second mounting cavity, the front and rear two sides of the second mounting cavity are provided with second rotating gear grooves, the upper end of the supporting shell is provided with a second rotating column, the handrail seat is rotationally connected to the second rotating column, the second rotating column extends into the second mounting cavity, the second rotating seat is fixed to the upper end of the second rotating column and located in the second mounting cavity, the front and rear two sides of the second rotating seat are provided with the second elastic piece and the clamping column, the clamping column can slide towards or away from the second rotating gear groove, and the second elastic piece is configured to be capable of pushing the clamping column, so that the end of the clamping column abuts against the second rotating gear groove.

[0012] According to the handrail device provided by the first aspect of the utility model, the handrail assembly further comprises an inclined support seat and an inclined support pad, the inclined support seat is arranged on the front side of the handrail seat and can rotate up and down, and the inclined support pad is arranged on the upper side of the inclined support seat.

[0013] According to the handrail device provided by the first aspect of the utility model, the front side of the handrail seat is provided with a plurality of gear insertion openings, and the plurality of gear insertion openings are arranged at intervals along the rotating direction of the inclined support seat.

[0014] According to the handrail device provided by the first aspect of the utility model, the front side of the handrail seat is provided with a plurality of gear insertion openings, and the plurality of gear insertion openings are arranged at intervals along the rotating direction of the inclined support seat.

[0015] According to the handrail device provided by the first aspect of the utility model, the first rotating column and the connecting arm are in an integral molding structure.

[0016] According to the handrail device provided by the first aspect of the utility model, the second rotating column and the support shell are in an integral molding structure.

[0017] According to the handrail device provided by the first aspect of the utility model, the connecting arm is a liftable connecting arm.

[0018] According to the seat provided by the second aspect of the utility model, the seat has all the beneficial effects of the first aspect of the utility model.

[0019] Additional aspects and advantages of the utility model will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described below in combination with the drawings and embodiments, wherein:

[0021] Figure 1 The overall schematic view of the handrail device provided for the embodiment of the utility model is shown in the figure;

[0022] Figure 2 The exploded schematic view of the handrail device provided for the embodiment of the utility model is shown in the figure;

[0023] Figure 3 The exploded schematic view of the connecting arm and the adjusting assembly provided for the embodiment of the utility model is shown in the figure;

[0024] Figure 4 The exploded schematic view of the handrail assembly provided for the embodiment of the utility model is shown in the figure.

[0025] The reference signs are as follows:

[0026] Connecting arm 100; first rotating column 110;

[0027] Adjusting assembly 200; support shell 210; first mounting cavity 211; front and rear sliding gear slot 212; sliding slot 213; second rotating column 214; first rotating seat 220; first rotating gear slot 221; fixing seat 230; gear column 231; front and rear gear piece 240; first spring 241;

[0028] Handrail assembly 300; handrail pad 310; handrail seat 320; second mounting cavity 321; second rotating gear slot 322; gear insertion port 323; second rotating seat 330; second elastic piece 340; clamping column 350; inclined support seat 360; inclined support pad 370; insertion piece 380; third elastic piece 390; driving piece 400. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs 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 and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0030] In the description of the present application, it should be understood that, if the orientation description, such as the orientation or position relationship indicated by up, down, 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.

[0031] In the description of the present application, if the first and the second are described only for the purpose of distinguishing technical features, they cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or the sequence of the indicated technical features.

[0032] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be interpreted in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0033] The embodiments of the present application propose a handrail device applied to a seat, and the specific structure and function of the handrail device provided by the embodiments of the present application will be further described below by combining with the text and drawings.

[0034] Referring to Figures 1 to 4 , according to the handrail device provided by the first aspect of the utility model, it comprises a connecting arm 100, an adjusting assembly 200 and a handrail assembly 300, the connecting arm 100 is a rod-shaped structure, and a first rotating column 110 is formed on the upper end thereof. The adjusting assembly 200 is internally provided with a first mounting cavity 211, and the lower end of a supporting shell 210 is mounted on the upper end of the connecting arm 100, so that the first rotating column 110 can extend into the first mounting cavity 211. A first rotating seat 220 is in the form of a square structure, and a through hole matched with the first rotating column 110 is formed in the middle portion of the first rotating seat 220, the first rotating seat 220 is rotatably connected to the first rotating column 110 through the through hole, and the first rotating seat 220 is located in the first mounting cavity 211. A plurality of first rotating gear grooves 221 are uniformly distributed on the upper side surface of the first rotating seat 220, the plurality of first rotating gear grooves 221 are arranged at intervals along the circumference of the first rotating column 110, the shape and size of each first rotating gear groove 221 are matched with the shape and size of the end portion of a gear column 231, so as to ensure the close cooperation with the gear column 231. The plurality of first rotating gear grooves 221 arranged at intervals along the circumference of the first rotating column 110 can cooperate with the gear column 231 to realize the rotation of the supporting shell 210 and the handrail assembly 300 by 360 degrees.

[0035] Referring to Figures 1 to 3 In some embodiments, a fixing seat 230 is fixedly mounted on the upper end of the first rotating column 110 and located on the upper side of the first rotating seat 220. Two telescopic gear columns 231 are arranged on the lower side of the fixing seat 230, and the two gear columns 231 are respectively located on the opposite sides of the fixing seat 230, and the lower end of each gear column 231 is in the form of a circle and can be accurately clamped in the first rotating gear groove 221. The telescopic function of the gear column 231 can be realized by the built-in elastic element such as a spring. When it is necessary to adjust the angle of the handrail, a certain external force is applied to make the gear column 231 retract and be separated from the first rotating gear groove 221, and at this time, the first rotating seat 220 can be freely rotated. When the handrail is rotated to the appropriate angle, the gear column 231 is automatically extended and clamped into the adjacent first rotating gear groove 221 under the action of the elastic element, so as to realize the stable positioning of the handrail at the angle.

[0036] Referring to Figure 1 In some embodiments, the handrail pad 310 of the handrail assembly 300 is made of soft and comfortable material, such as high-density sponge coated with leather or cloth, and is mounted on the upper side of the supporting shell 210, so as to provide good support and touch feeling for the user.

[0037] In actual use, users can easily adjust the angle of the armrest according to their own needs, so that it reaches the best state of use. For example, users with higher or lower body can adjust the angle of the armrest so that their arms can naturally rest on the armrest, maintaining a comfortable posture; users who like to lie on their side or lean can also adjust the armrest to the appropriate position according to their habits, achieving better support and relaxation. The emergence of this armrest device brings a new experience and convenience to the design and use of the seat.

[0038] According to the armrest device provided by the first aspect of the present application, the first rotating column 110 at the upper end of the connecting arm 100 cooperates with the first rotating seat 220 in the adjusting assembly 200, so that the armrest can realize multi-angle rotation, breaking through the limitation of the fixed rotation range of the traditional armrest. The plurality of first rotating gear grooves 221 arranged along the circumference of the first rotating column 110 on the first rotating seat 220 are mutually clamped with the two telescopic gear columns 231 on the lower side of the fixed seat 230, realizing the stable positioning of the armrest at different angles. Users can adjust the armrest to the most comfortable position according to their own use habits, thereby meeting the diversified needs of different users for the angle and position of the armrest, improving the comfort and practicality of the seat, and enhancing the user's experience.

[0039] Referring to Figure 2 and Figure 3 , according to the armrest device provided by the first aspect of the present application, a plurality of front and rear sliding gear grooves 212 arranged in the front and rear directions are arranged on the left and right side walls of the first installation cavity 211 of the support shell 210, which provide accurate gear points for the front and rear sliding of the armrest. At the same time, a sliding groove 213 arranged in the front and rear directions is arranged on the bottom wall of the first installation cavity 211, and the first rotating column 110 is arranged in the sliding groove 213, so that the support shell 210 can slide forward or backward relative to the first rotating column 110, thereby realizing the position adjustment of the armrest in the front and rear directions.

[0040] Referring to Figure 2 and Figure 3In order to realize the sliding positioning of the support shell 210, the adjusting assembly 200 further comprises two front and rear gear members 240 and a first spring 241. The two front and rear gear members 240 are respectively mounted on the left and right sides of the first rotating seat 220, and the shapes and sizes thereof are adapted to the front and rear sliding gear grooves 212. The first spring 241 is arranged on the first rotating seat 220, and the two ends thereof abut against the two front and rear gear members 240. When it is needed to adjust the front and rear positions of the armrest, external force is applied to make the two front and rear gear members 240 overcome the elastic force of the first spring 241 and disengage from the front and rear sliding gear grooves 212. At this time, the support shell 210 can slide along the sliding groove 213 in the front and rear directions. When sliding to the appropriate position, the external force is released, and the first spring 241 pushes the two front and rear gear members 240 to be respectively clamped into the adjacent front and rear sliding gear grooves 212, so as to realize the stable positioning of the support shell 210 at the position, and further fix the front and rear positions of the armrest. In this way, the armrest can not only realize multi-angle rotating positioning, but also realize sliding positioning in the front and rear directions, and further meet the individualized needs of users for the positions of the armrest in different use scenarios. For example, when it is needed to make the armrest close to the body to provide closer support, the armrest can be slid backward; and when it is needed to make the armrest slightly away from the body to increase the activity space, the armrest can be slid forward. Through the cooperation of the front and rear gear members 240 and the first spring 241, the front and rear positions of the armrest are quickly adjusted and stably fixed, and the practicability of the armrest and the use experience of users are greatly improved.

[0041] With reference to Figures 1 to 4 According to the armrest device provided in the first aspect of the present application, the armrest assembly 300 further comprises an armrest seat 320, a second rotating seat 330, a second elastic member 340 and a clamping column 350. The armrest pad 310 is connected to the upper side of the armrest seat 320 in a manner of adhesion, buckling or screwing, and provides a comfortable support surface for users. The second installation cavity 321 is internally provided in the armrest seat 320, and the front and rear sidewalls of the second installation cavity 321 are processed with second rotating gear grooves 322, which provide a basis for the left and right rotating positioning of the armrest pad 310. The upper end of the support shell 210 is processed with a second rotating column 214, and the armrest seat 320 is rotatably connected to the second rotating column 214 through the through hole in the middle part thereof, so that the armrest seat 320 can rotate in the left and right directions around the second rotating column 214. The second rotating column 214 extends into the second installation cavity 321 of the armrest seat 320, and ensures the stability and reliability of rotation.

[0042] The second rotating seat 330 is fixedly installed at the upper end of the second rotating column 214 and located in the second installation cavity 321. The front and rear sides of the second rotating seat 330 are respectively provided with a second elastic member 340 and a clamping column 350. The second elastic member 340 can be an elastic element such as a spring, one end of which is fixed to the second rotating seat 330, and the other end of which is connected with the clamping column 350. The clamping column 350 can be clamped into the second rotating gear slot 322 under the action of the second elastic member 340. When it is necessary to adjust the front and rear rotating angles of the armrest, an external force is applied to make the clamping column 350 overcome the elastic force of the second elastic member 340 and disengage from the second rotating gear slot 322. At this time, the armrest seat 320 can be freely rotated. When the rotating angle is appropriate, the external force is released, the second elastic member 340 pushes the clamping column 350, and the end of the clamping column 350 abuts against the adjacent second rotating gear slot 322, so that the armrest seat 320 is stably positioned at the angle.

[0043] It can be understood that, due to the arrangement of the first rotating seat 220 and the second rotating seat 330, the armrest device can not only realize multi-angle rotation and front and rear sliding positioning on the connecting arm 100, but also can realize left and right rotating positioning of the armrest seat 320, thereby further enriching the adjustment dimension of the armrest. For example, when the user needs to rotate the armrest left and right to better support the arm, the left and right rotating angles of the armrest seat 320 can be adjusted to achieve this purpose. When the user needs to rotate the armrest rearward to increase the space sense of the seat, the armrest can also be easily adjusted. Through the cooperation of the second elastic member 340 and the clamping column 350, the stability and reliability of the armrest seat 320 at different rotating angles are ensured, thereby providing the user with a more flexible and comfortable use experience.

[0044] With reference to Figure 2 and Figure 4 According to the armrest device provided in the first aspect of the present application, the armrest assembly 300 further comprises an inclined support seat 360 and an inclined support pad 370. The inclined support seat 360 is installed on the front side of the armrest seat 320 and can rotate up and down. This rotatable structure enables the inclined support seat 360 to be adjusted to different inclined angles according to the needs and use habits of the user, thereby providing the user with a more personalized support scheme. The inclined support pad 370 is fixedly installed on the upper side of the inclined support seat 360. The material of the inclined support pad 370 is also a soft and comfortable material, such as high-density sponge coated with leather or cloth, so as to ensure that the user can obtain a good touch and support effect during use.

[0045] When the user needs to rest, read or other activities on the seat, the arm can be placed on the inclined support pad 370, and the adjustable angle of the inclined support seat 360 can be used to find the most comfortable arm support posture, thereby effectively reducing the fatigue of the arm and improving the comfort and relaxation when using the seat. For example, the user wants to rest on the seat after a long time of work, and can turn the inclined support seat 360 upward to form a relatively inclined support surface of the inclined support pad 370, and then place the arm on it to relax and support the arm. Or when reading a book, the inclined support seat 360 can be adjusted to the appropriate angle, so that the inclined support pad 370 can stably support the arm and avoid fatigue caused by long-term suspension of the arm. This not only increases the functionality of the armrest, but also improves the overall comfort and practicality of the seat, meeting the diverse needs of users in different use scenarios.

[0046] With reference to Figure 1 , Figure 2 and Figure 4 , according to the first aspect of the present application, the armrest device further comprises a plug-in part 380, a third elastic part 390 and a driving part 400. The front side of the armrest seat 320 is provided with a gear insertion port 323, and the shape and size of the gear insertion port 323 are matched with the rear end of the plug-in part 380, thereby providing an interface for positioning the inclined support seat 360. The plug-in part 380 is connected to the inclined support seat 360 and can move towards or away from the gear insertion port 323. The third elastic part 390, such as a spring or other elastic element, is arranged in the inclined support seat 360, one end of which abuts against the inner wall of the inclined support seat 360, and the other end abuts against the plug-in part 380. Under the action of the elastic force of the third elastic part 390, the end of the plug-in part 380 can be stably inserted into the gear insertion port 323, thereby locking the inclined support seat 360 at the current position and preventing it from rotating freely, ensuring the stability and reliability of the inclined support seat 360 during use.

[0047] With reference to Figure 1 , Figure 2 and Figure 4 , in some embodiments, the driving part 400 is installed on the lower side of the inclined support seat 360 and connected to the plug-in part 380. When it is necessary to unlock the inclined support seat 360 to enable it to rotate to the horizontal position, the user can push the driving part 400 to drive the plug-in part 380 to move away from the gear insertion port 323 against the elastic force of the third elastic part 390, thereby separating the plug-in part 380 from the gear insertion port 323. At this time, the locking state of the inclined support seat 360 is released, and the user can easily rotate the inclined support seat 360 to the horizontal position for cleaning, maintenance or other operations that require the inclined support seat 360 to be flat.

[0048] With reference to Figure 4 According to the handrail device provided in the first aspect of the present application, the front side of the handrail seat 320 is provided with a plurality of gear sockets 323, and the plurality of gear sockets 323 are arranged at intervals along the rotation direction of the inclined support seat 360. This enables the inclined support seat 360 to be locked at different inclined angle positions according to the needs of the user, thereby providing the user with more personalized support options.

[0049] Specifically, when the user needs to adjust the angle of the inclined support seat 360, the user can push the driving member 400 to separate the plug-in part 380 from the current gear socket 323, and then rotate the inclined support seat 360 to the desired angle position. Since the front side of the handrail seat 320 is provided with a plurality of gear sockets 323 arranged at intervals along the rotation direction, the user can choose from a plurality of pre-set angle positions to find the most suitable inclined angle for himself. When the inclined support seat 360 is rotated to the appropriate position, the driving member 400 is released, and under the elastic force of the third elastic member 390, the plug-in part 380 will automatically insert into the adjacent gear socket 323, thereby locking the inclined support seat 360 at the position and ensuring its stability during use.

[0050] With reference to Figure 2 and Figure 3 According to the handrail device provided in the first aspect of the present application, the first rotating column 110 and the connecting arm 100 are integrally formed, which is beneficial to increase the stability of the structure of the first rotating column 110 and the connecting arm 100. This makes the first rotating column 110 and the connecting arm 100 become a whole during the manufacturing process, without the need for additional connecting parts or fasteners, thereby avoiding problems such as unsmooth rotation or instability of the handrail caused by loosening or damage of the connecting parts.

[0051] In addition, the integrally formed first rotating column 110 and the connecting arm 100 provide a solid structural foundation for the handrail device, so that the handrail can withstand frequent rotation and various external forces during use for a long time, and always maintain good performance and stability. At the same time, this design also helps to improve the production efficiency and quality consistency of the product, facilitating mass production and quality control, and providing the user with a more reliable and durable handrail device.

[0052] With reference to Figure 2According to the handrail device, the second rotating column 214 and the supporting shell 210 are in an integral molding structure, which is beneficial to enhancing the stability of the structure of the second rotating column 214 and the supporting shell 210, in the use process, the handrail seat 320 can rotate smoothly around the second rotating column 214, and since there is no additional connecting gap, dust and sundries can also be effectively prevented from entering the rotating part, reducing problems such as unsmooth rotation caused by foreign matter sticking, thereby ensuring that the handrail device operates stably and reliably for a long time, and bringing more comfortable and convenient use experience to the user.

[0053] With reference to Figure 1 and Figure 2 According to the handrail device provided by the first aspect of the utility model, the connecting arm 100 is a liftable connecting arm, the liftable connecting arm enables the height of the handrail to be adjusted according to the specific needs of the user, so as to better adapt to users of different heights and different use scenarios, and provide more personalized and comfortable use experience for the user.

[0054] In specific implementation, the liftable connecting arm can adopt various implementation manners. A common design is to utilize a telescopic rod structure, the telescopic rod is composed of two layers of sleeve pipes, the outer sleeve pipe is fixedly installed at the corresponding part of the seat, and the inner sleeve pipe is connected with other components of the handrail device. By setting a locking mechanism, such as a spring steel ball and a positioning hole, or a screw lifting mechanism, between the inner and outer sleeve pipes, the lifting and positioning of the connecting arm 100 are realized. The user can easily adjust the height of the handrail according to his / her height and use habit, and when the height is adjusted to a proper position, the locking mechanism will automatically fix the connecting arm 100 at the height, ensuring the stability of the handrail in the use process.

[0055] According to the seat provided by the second aspect of the utility model, the seat has all the beneficial effects of the first aspect of the utility model.

[0056] Of course, the utility model is not limited to the above-mentioned implementation manners, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A handrail device, characterized in that The utility model relates to a kind of adjustable armrests, including: Connecting arm, the upper end is equipped with first rotating column; Adjusting assembly, including support shell, first rotating seat and fixed seat, the inside of the support shell is equipped with first installation cavity, the support shell is located in the upper end of the connecting arm, the first rotating column extends into the first installation cavity, the first rotating seat is rotatably connected to the first rotating column and is located in the first installation cavity, the fixed seat is fixed to the first rotating column and is located on the upper side of the first rotating seat, the upper side of the first rotating seat is equipped with a plurality of first rotating gear slots, a plurality of the first rotating gear slots are spaced along the circumference of the first rotating column, the lower side of the fixed seat is equipped with two telescopic gear columns, two gear columns are located on the opposite sides of the fixed seat, the lower end of two gear columns is circular and is clamped in the first rotating gear slot; Handrail assembly, including handrail pad, the handrail pad is located on the upper side of the support shell.

2. The handrail apparatus of claim 1, wherein The left and right side walls of the first installation cavity are equipped with a plurality of front and rear sliding gear slots arranged in front and back directions, the bottom wall is equipped with a sliding groove arranged in front and back directions, the first rotating column is inserted into the sliding groove, the support shell can slide forward or backward relative to the first rotating column, the adjusting assembly further includes two front and rear gear pieces and a first spring, two front and rear gear pieces are located on the left and right sides of the first rotating seat, the first spring is located on the first rotating seat and the two ends thereof respectively abut two front and rear gear pieces, the first spring is configured to respectively push two front and rear gear pieces so that two front and rear gear pieces are respectively clamped into the front and rear sliding gear slots.

3. The handrail assembly of claim 1, wherein The handrail assembly further includes a handrail seat, a second rotating seat, a second elastic member and a clamping column, the handrail pad is connected to the upper side of the handrail seat, the handrail seat is provided with a second installation cavity, the front and rear sides of the second installation cavity are provided with second rotating gear slots, the upper end of the support shell is provided with a second rotating column, the handrail seat is rotatably connected to the second rotating column, the second rotating column extends into the second installation cavity, the second rotating seat is fixed to the upper end of the second rotating column and located in the second installation cavity, the front and rear sides of the second rotating seat are both provided with the second elastic member and the clamping column, the clamping column can slide towards or away from the second rotating gear slot, the second elastic member is configured to push the clamping column so that the end of the clamping column abuts the second rotating gear slot.

4. The handrail assembly of claim 3, wherein The handrail assembly further includes an inclined support seat and an inclined support pad, the inclined support seat is located on the front side of the handrail seat and can rotate up and down, the inclined support pad is located on the upper side of the inclined support seat.

5. A handrail arrangement according to claim 4, c h a r a c t e r i s e d in that The handrail assembly further comprises an insertion piece, a third elastic piece and a driving piece, the front side of the handrail seat is provided with a gear insertion opening, the insertion piece is connected to the inclined support seat and can move towards or away from the gear insertion opening, the third elastic piece is arranged in the inclined support seat and abuts against the insertion piece, the third elastic piece can push the insertion piece so that the end of the insertion piece is inserted into the gear insertion opening, and the driving piece is arranged on the lower side of the inclined support seat and abuts against the insertion piece, and pushing the driving piece can drive the insertion piece to move towards or away from the gear insertion opening so that the insertion piece is separated from the gear insertion opening.

6. The handrail assembly of claim 5, wherein The front side of the handrail seat is provided with a plurality of gear insertion openings, and the plurality of gear insertion openings are arranged at intervals along the rotation direction of the inclined support seat.

7. The handrail assembly of claim 1, wherein The first rotation column and the connecting arm are in an integral molding structure.

8. The handrail assembly of claim 3, wherein The second rotation column and the support shell are in an integral molding structure.

9. The handrail apparatus of claim 1, wherein The connecting arm is a liftable connecting arm.

10. A seat, characterized by A handrail device comprising any one of claims 1 to 9.

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